KR200490378Y1 - Biomass gasifier and treatment equipment for biomass having the same - Google Patents

Abstract

The biomass gasifier according to the present invention includes a housing, a housing inlet for injecting biomass into the housing, a drying chamber provided under the housing inlet, and a lower side of the drying chamber for heating and thermally degrading the biomass. A pyrolysis chamber, a primary combustion chamber provided below the pyrolysis chamber for primary combustion of the biomass, an air supply for supplying air to the primary combustion chamber, and biomass are laminated with charcoal and syngas is extracted from the biomass charcoal. A steam supply having a reduction chamber provided below the primary combustion chamber for production, a steam injection nozzle for injecting steam into the reduction chamber, and a secondary provided below the reduction chamber for secondary combustion of charcoal descending from the reduction chamber The outside of the housing, the gas receiving unit for receiving the synthesis gas generated in the combustion chamber, the reduction chamber, and char So as to be discharged comprising: a housing outlet which is provided at the lower side of the secondary combustion chamber.

Description

Biomass gasifier and biomass processing equipment having the same {BIOMASS GASIFIER AND TREATMENT EQUIPMENT FOR BIOMASS HAVING THE SAME}

The present invention relates to a biomass gasifier, and more particularly, to a biomass gasifier and a biomass processing apparatus having the same, which thermally decompose biomass to produce syngas.

In recent years, as the risk of depletion of fossil fuels used as most energy sources, the sudden price fluctuations, and the destruction of the environment due to the emission of harmful substances including greenhouse gases have emerged around the world, interest in renewable energy has been increasing. It is increasing.

Among the renewable energy, biomass fuel is attracting attention as a field of alternative energy that can solve the concern about depletion of fossil fuel and environmental pollution. Biomass is a term that refers to a bioorganism including plants, cells, and animals that eat and live by photosynthesis of plants and microorganisms that receive solar energy. Biomass resources include starch-based resources such as grains and cellulose-based resources, including forest products such as timber and rice straw, chaff, sugar-based resources such as sugar cane, sugar beet, and organic wastes such as food waste.

About 0.1% of the solar energy on earth is being accumulated as biomass, and biomass has the advantage that there is no environmental impact caused by carbon dioxide. The development of subsequent processes to produce heat, power, liquid fuels, and basic chemical fuel materials from syngas, a clean fuel produced from such biomass, is being considered as a key resource to replace petroleum.

In order to use biomass in an existing energy production system, it is necessary to first convert it to gaseous syngas. A representative technology is biomass gasification technology. Syngas converted to gasification technology is composed of carbon monoxide, hydrogen, methane, etc., and can be immediately used as energy for transportation, power generation, and heating. Catalytic synthesis or bioconversion can also produce high value fuels such as synthetic natural gas, FT diesel and biohydrogen. Biomass gasifiers for converting biomass into gaseous synthesis gas include upflow biomass gasifiers and downflow biomass gasifiers.

The upflow biomass gasifier has a section for partial combustion, reduction and pyrolysis and a drying section. Oxygen is supplied from the bottom of the biomass gasifier and reacts with the biomass and the generated gas moves upwards. The upflow biomass gasifier has a high efficiency by maintaining a low temperature because the hot gas passes through the biomass fuel layer, but contains a large amount of tar in the generated gas, is difficult to treat large volumes, and is unsuitable for continuous operation.

Downflow biomass gasifier has a feature that the air is supplied to the lower side of the biomass material loaded with the movement to the lower portion of the biomass gasifier. The downflow biomass gasifier has an advantage of reducing tar in the generated gas which may affect the power generation engine, which is one of problems of the upflow biomass gasifier. However, there are disadvantages in that low efficiency and high moisture content of biomass fuel and biomass are difficult to process the remaining ashes and the time required for ignition is long.

Utility Model Registration No. 0354756 (2004.06.30.)

The present invention is to solve the problems of the prior art as described above, biomass gasification apparatus and a biomass having a new structure that has a low content of tar and dust in the generated gas, high pyrolysis efficiency can increase the synthesis gas productivity It is an object to provide a treatment facility.

The object of the present invention is not limited to the above, other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

Biomass gasifier according to the present invention for achieving the object as described above, the housing having an inner space; A housing input part provided in the housing for injecting biomass into the housing; A drying chamber provided below the housing input part to dry the biomass introduced through the housing input part; A pyrolysis chamber provided below the drying chamber for thermally decomposing the biomass descending from the drying chamber; A primary combustion chamber provided below the pyrolysis chamber for primary combustion of biomass descending from the pyrolysis chamber while supplying air; An air supply installed in the housing for supplying air to the primary combustion chamber; A reduction chamber provided at a lower side of the primary combustion chamber to stack biomass that is first burned down in the primary combustion chamber and be laminated with charcoal and to generate syngas from the char of biomass; A steam supplier having a steam injection nozzle disposed in the housing such that at least a portion of the steam discharge nozzle is disposed in the reduction chamber to inject steam into the reduction chamber; A secondary combustion chamber provided below the reduction chamber so that the charcoal descending from the reduction chamber can be secondary burned; A gas receiver disposed in the housing such that a gas flow is connected to the reduction chamber so as to receive the synthesis gas generated in the reduction chamber; And a housing discharge part provided below the secondary combustion chamber to discharge the charcoal passing through the secondary combustion chamber to the outside of the housing.

The steam supplier includes a supply pipe flow path through which a cooling medium for cooling the steam injection nozzle flows, and is arranged to surround at least a portion of the steam injection nozzle so that at least a portion of the steam injection nozzle is placed in the supply pipe flow path. It may include a cooling medium supply pipe.

The injection angle αs of steam injected from the steam injection nozzle preferably satisfies the following conditions.

60 ° ≤ αs ≤ 80 °

The steam supply may supply steam to the reduction chamber at an injection rate of 1 ~ 1.5 kg. Steam / kg. Charcoal (C).

Biomass gasifier according to the present invention is installed on the lower side of the secondary combustion chamber to support the charcoal, charcoal support bed having a bed passage through which the char can pass; And a charcoal discharger including a paddle rotating shaft on which a movable paddle for pressurizing the charcoal placed on the charcoal support bed and being forced to discharge through the bed passage, and a motor providing rotational force to the paddle rotating shaft.

The char support bed includes a plurality of fixed paddles disposed to be spaced apart from each other on the inner surface of the housing, the bed passage is provided between the inner surface of the housing and the plurality of fixed paddles, the char discharger is a plurality of movable paddles A dog may be disposed between the plurality of stationary paddles.

The fixed paddle may have a shape in which the char support area gradually increases as the distance from the inner surface of the housing increases, and the movable paddle may have a shape in which the char pressing area gradually increases as it moves away from the paddle rotation axis.

The cross-sectional area may gradually increase as the movable paddle moves away from the paddle axis of rotation.

A plurality of paddle rotation shafts may be arranged in parallel with each other, and a plurality of movable paddles may be disposed on the plurality of paddle rotation shafts, respectively.

The plurality of movable paddles may be equally divided each other around the paddle rotation axis.

A rotation shaft flow path through which a cooling medium flows is provided inside the paddle rotation shaft, and a rotation shaft inlet for inflow of the cooling medium is connected to one side of the paddle rotation shaft, and the other side of the paddle rotation shaft. A rotary shaft outlet for discharging the cooling medium may be provided to be connected to the rotary shaft flow path.

Biomass gasifier according to the present invention, the charcoal cooler having a cooling medium injection nozzle is installed in the housing so that at least a portion is disposed in the housing discharge portion to spray the cooling medium to the char passing through the housing discharge portion; It may include.

The charcoal cooler, an air injection unit connected to the cooling medium injection nozzle to supply air to the cooling medium injection nozzle, and a cooling water injection connected to the cooling medium injection nozzle to supply cooling water to the cooling medium injection nozzle And a cooling medium spray nozzle may spray air and cooling water at the same time.

The spray angle αc of the cooling medium injected from the cooling medium injection nozzle preferably satisfies the following conditions.

60 ° ≤ αc ≤ 80 °

The charcoal cooler, the cooling temperature sensor installed in the housing so as to detect the temperature of the discharge portion of the housing, the cooling to interrupt the flow of the cooling medium supplied to the cooling medium injection nozzle in accordance with the detected temperature of the cooling temperature sensor It may include a control valve.

The housing includes the drying chamber, the pyrolysis chamber, the primary combustion chamber, the reduction chamber, an inner wall surrounding the secondary combustion chamber, and an outer wall surrounding the inner wall from the outside of the inner wall, and the biomass according to the present invention. The gasifier includes: a plurality of gas discharge holes formed in the inner wall for discharging the syngas produced in the reduction chamber from the reduction chamber; And a gas collecting chamber provided between the inner wall and the outer wall of the housing to collect the syngas discharged from the plurality of gas discharge holes, the gas collecting chamber being connected to the gas receiving unit.

Biomass processing equipment according to the present invention for solving the object as described above, a housing, a housing input portion provided in the housing for injecting biomass into the housing, and the housing for drying the biomass A drying chamber provided below the input unit, a pyrolysis chamber provided below the drying chamber for heating and thermally decomposing the biomass, and a primary combustion chamber provided below the pyrolysis chamber for primary combustion while supplying air to the biomass; An air supply for supplying air to the primary combustion chamber, a reduction chamber provided below the primary combustion chamber so that biomass can be stacked with charcoal and generate syngas from the biomass char, and at least a portion of the reduction chamber Steam having a steam injection nozzle disposed in the injecting steam to the reduction chamber The gas supply is connected to the reduction chamber and the gas flow to receive the synthesis gas generated in the reduction chamber and the secondary combustion chamber provided in the lower side of the reduction chamber so that the air supply, the charcoal descending from the reduction chamber can be secondary combustion. A biomass gasifier comprising a gas receiver and a housing discharge portion provided below the secondary combustion chamber to discharge charcoal falling from the secondary combustion chamber to the outside of the housing; And a sorting input unit through which char discharged from the housing discharge part of the biomass gasifier is introduced, and a sorting member having a plurality of sorting holes through which chars of a relatively small size can be passed among chars introduced into the sorting input unit. To include a charcoal sorter.

The sorting member is provided with a sorting inlet connected to the sorting input unit at one end and a sorting outlet at the other end, and has a drum shape in which the plurality of sorting holes are formed in the middle, and the charcoal sorter is capable of rotating the sorting member. And a sorting housing for supporting the sorting unit, a primary sorting charcoal collecting unit disposed below the sorting member so as to collect the chars discharged through the plurality of sorting holes, and a char being discharged from the sorting outlet of the sorting member. It may include a secondary sorting charcoal collecting portion disposed below the sorting outlet so as to be disposed, and a sorter driving unit disposed in the sorting housing to provide a rotational force to the sorting member.

The biomass processing facility according to the present invention is coupled to the housing so as to cover the housing discharge port provided in the housing discharge unit, the housing discharge port for transferring the char discharged through the housing discharge port to the sorting input of the charcoal sorter. Charcoal transfer pipe provided with a charcoal transfer path connected to the inside; And an on / off valve installed during the char transfer path to open and close the char transfer path disposed between the housing outlet and the sorting input unit.

Biomass processing equipment according to the present invention, the transport pipe inlet connected to the housing outlet, the charcoal discharged through the housing outlet, the transport pipe outlet for the discharge of charcoal, the transport tube inlet and the transport pipe outlet A charcoal conveying pipe having a charcoal conveying path connecting the charcoal conveying path so as to be inclined with respect to the ground so that the conveying pipe outlet is located higher than the conveying pipe inlet; A transport conveyor disposed in the char transport pipe so as to force the char injected into the transport pipe inlet to the transport pipe discharge port; And a water discharge part disposed lower than the transport pipe inlet in the char transport pipe so as to discharge the water of the char transport path to the outside.

Biomass processing equipment according to the present invention, may include a water discharge valve disposed in the water discharge portion to open and close the internal flow path of the water discharge portion.

The biomass gasifier is installed on the lower side of the secondary combustion chamber to support the charcoal, the charcoal support bed having a bed passage through which the char can pass downward, and the charcoal placed on the charcoal support bed pressurized the bed passage It may include a charcoal discharger including a paddle rotation axis is disposed for the forced discharge through the paddle, and a motor for providing a rotational force to the paddle rotation axis.

In the biomass gasifier according to the present invention, two combustion zones may be provided with a reduction chamber in which synthesis gas is generated, thereby improving pyrolysis efficiency of biomass, and producing synthesis gas having a low tar content with high productivity.

In addition, the biomass gasifier according to the present invention is activated by the steam supply to the reduction chamber in which the gasification of the biomass is completed as the reduction process is activated, the reduction process is activated, and the amount of CO and H ₂ generated in the reduction chamber is increased. This can increase the production of syngas.

In addition, the biomass gasifier according to the present invention is gradually discharged from the secondary combustion chamber while the char of the secondary combustion chamber holding the char support bed and the charcoal discharger. Therefore, the char may be secondary combustion while staying in the secondary combustion chamber for a sufficient time to supply CO ₂ and H ₂ O to the reduction chamber, thereby increasing the amount of syngas produced in the reduction chamber.

In addition, the biomass processing facility according to the present invention can efficiently produce a synthetic gas using a biomass gasifier, and can effectively collect and recycle charcoal which is a byproduct of the gasification process.

Effects of the present invention is not limited to the above, other effects that are not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a front view schematically showing a biomass processing facility according to an embodiment of the present invention.
Figure 2 is a front view showing a biomass gasifier of the biomass treatment plant according to an embodiment of the present invention.
3 is an extract showing the steam supply of the biomass gasifier shown in FIG.
4 is a plan view showing a char support bed and a charcoal discharger of the biomass gasifier shown in FIG.
5 is a plan view showing a char support bed of the biomass gasifier shown in FIG.
FIG. 6 is a plan view showing a partial configuration of a char support bed of the biomass gasifier shown in FIG. 2.
FIG. 7 is a front view showing a partial configuration of a char support bed of the biomass gasifier shown in FIG. 2.
8 is a plan view showing a charcoal discharger of the biomass gasifier shown in FIG.
9 is a front view showing a part of the charcoal discharger of the biomass gasifier shown in FIG.
10 is an extract showing the charcoal cooler of the biomass gasifier shown in FIG.
11 is a front view showing a charcoal sorter of a biomass processing facility according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.

In addition, in various embodiments, components having the same configuration will be described only in the exemplary embodiment using the same reference numerals, and in other embodiments, only the components different from the exemplary embodiment will be described.

Throughout the specification, when a part is "connected" with another part, it includes not only "directly connected", but also "indirectly connected" with another member therebetween. In addition, when a part is said to "include" a certain component, it may mean that other components are not included, except in addition to the description to the contrary, further includes other components.

As shown in FIG. 1, the biomass processing facility 100 according to an embodiment of the present invention includes a biomass gasifier 200 and a biomass gasifier 200 for producing syngas from biomass. In the charcoal transporter 300 for transporting the char of the bio-gas discharged after the production of the synthesis gas, and a charcoal sorter 400 for selecting the char generated by the biomass gasifier 200 by size. Here, a variety of biomass may be used to produce a synthesis gas including carbon monoxide, hydrogen, methane, etc. through biomass gasification techniques such as wood, animal manure or food waste, organic waste.

As shown in FIGS. 1 and 2, the biomass gasifier 200 gasifies the biomass through an oxidation process that burns only part of the biomass by adjusting the air volume and a reduction process that produces a synthesis gas from the unburned charcoal. Device. The biomass gasifier 200 has a housing 210 in which an inner space is formed. The housing 210 has a double wall structure of the outer wall 211 and the inner wall 212. The housing inlet 214 is provided above the housing 210, and the housing outlet 216 is provided below the housing 210. The biomass is introduced into the internal space of the housing 210 through the housing input part 214 and moves downward to undergo a gasification process. The charcoal remaining while the biomass is gasified is passed to the charcoal sorter 400 by the charcoal feeder 300 through the housing discharge part 216.

The inner space of the housing 210 may be divided into a drying chamber 220, a pyrolysis chamber 228, a primary combustion chamber 230, a reduction chamber 240, a secondary combustion chamber 257, and a char collection chamber 265 from an upper side. . The biomass introduced into the housing inlet 214 is converted into charcoal while passing through the drying chamber 220, the pyrolysis chamber 228, the primary combustion chamber 230, the reduction chamber 240, and the secondary combustion chamber 257, in order to collect the charcoal. Go to (265).

The drying chamber 220 is for drying the biomass. Drying in the drying chamber 220 is a pretreatment step of the biomass gasification step. In the drying chamber 220, moisture contained in the biomass is evaporated and some volatile substances are also evaporated.

The diffusion member 221 is installed above the drying chamber 220. The diffusion member 221 has a shape in which the width gradually increases from the top to the bottom direction. The diffusion member 221 is installed at the center of the upper side of the drying chamber 220 to diffuse the biomass introduced through the housing input part 214 so as not to accumulate in the center of the drying chamber 220.

Drying stirrer 222 is installed in the drying chamber 220. The dry stirrer 222 includes a stirring blade 223, a motor 224, and a power transmission mechanism 225. The motor 224 is installed outside the housing 210. The driving force of the motor 224 is transmitted to the stirring blade 223 through the power transmission mechanism 225 to whisk the biomass of the drying chamber 220 while the stirring blade 223 rotates.

The biomass introduced through the relatively narrow housing input 214 is accumulated at a constant angle of repose. If the biomass introduced into the housing 210 does not spread and is stacked with an angle of repose, it does not have a constant height of oxidation and reduction and the gasification layer is not formed. In this case, the synthesis gas generated during the drying and pyrolysis process may not be introduced into the predetermined flow path in the reduction section, but may be discharged through the upper housing inlet 214 to cause energy loss. The dry stirrer 222 solves the leakage problem of the synthesis gas by spreading the biomass accumulated in the drying chamber 220 evenly without the repose.

The drying chamber 220 is not provided with a separate heating device for heating the biomass. The biomass introduced into the drying chamber 220 may be dried by hot air rising from the pyrolysis chamber 228 below the drying chamber 220. In some cases, a separate heat source supply unit may be provided in the drying chamber 220.

The biomass having passed through the drying chamber 220 moves to the pyrolysis chamber 228 below. Pyrolysis in the pyrolysis chamber 228 is a process for obtaining gaseous material from biomass. When heat of high temperature (for example, 200 ° C. to 650 ° C.) is applied to biomass, the biomass is pyrolyzed to cause gas and tar. It is separated into and the char is left as a residue. The pyrolysis process is a process that does not require oxygen, and gaseous materials are mainly C, H, and O-based volatile materials. The pyrolysis chamber 228 is not provided with a separate heating device for heating the biomass, and the heat required for pyrolysis of the biomass in the pyrolysis chamber 228 is transferred from the primary combustion chamber 230 below the pyrolysis chamber 228. May be provided from rising heat.

The biomass that has passed through the pyrolysis chamber 228 moves to the lower primary combustion chamber 230. Combustion in the primary combustion chamber 230 is a process of generating heat (eg, 700 ° C. to 850 ° C.) for reduction. Combustion is mainly performed using tar gas and char generated in the pyrolysis process as main fuels. CO ₂ and H ₂ O generated in the combustion process react as shown in the following reaction in the reduction process, which reduces the amount of generation.

CO ₂ + O _2- > 2CO

H ₂ O + C-> H ₂ + CO

Incomplete combustion section should be formed in the primary combustion chamber 230 in order to burn only a part of the biomass in the primary combustion chamber 230. In order to properly form an incomplete combustion section in the primary combustion chamber 230, two air supply sections are provided in the primary combustion chamber 230. Air is supplied to the primary combustion chamber 230 through an air supply 232. The air supplier 232 includes an air supply pipe 233, a plurality of air injection pipes 236, and an air pump 238.

The air supply pipe 233 may be installed in the pyrolysis chamber 228 to supply air to the upper side of the primary combustion chamber 230. The air supply pipe 233 is provided with a plurality of air supply nozzles 234 facing the lower primary combustion chamber 230 spaced at regular intervals. Air injected downward toward the primary combustion chamber 230 through the plurality of air supply nozzles 234 may prevent the synthesis gas produced in the reduction chamber 240 from rising. The air supply pipe 233 is provided with an air control valve 235 for adjusting the supply of air. The plurality of air injection pipes 236 may be radially installed along the outer circumference of the wall of the housing 210. The plurality of air injection pipes 236 may be inclined downward toward the center of the primary combustion chamber 230 to inject air to the lower side of the center of the primary combustion chamber 230. Air injected through the plurality of air injection pipes 236 may prevent the synthesis gas produced in the reduction chamber 240 from rising. The air injection pipes 236 are provided with air control valves 237 for regulating the supply of air, respectively.

Heated air may be used as air supplied to the primary combustion chamber 230 through the air supply 232. When the air at room temperature is supplied to the primary combustion chamber 230, the biomass of the primary combustion chamber 230 may be cooled by the supply air, thereby reducing the combustion efficiency of the biomass. The use of heated air may reduce such a problem. As the heating air, air heated to a high temperature (eg, 250 ° C.) may be used while exchanging heat with a high temperature syngas produced in the biomass gasifier 200. To this end, the biomass processing facility 100 according to the present embodiment may include a heat exchanger (not shown) for cooling the high-temperature synthesis gas produced by the biomass gasifier 200 by air cooling. The heated air while cooling the syngas in the heat exchanger may be supplied to the air supply pipe 233 and the air injection pipe 236 through the air pump 238.

Although not shown, an ignition device for igniting the biomass may be installed in the primary combustion chamber 230. When the ignition device operates once at the beginning of the biomass input and ignites the biomass, the ignition device then flows into the primary combustion chamber 230 by the flame of biomass combusted in the primary combustion chamber 230 even if the ignition device does not operate. Biomass can be burned continuously.

The biomass burnt in the primary combustion chamber 230 moves to the reduction chamber 240 under the primary combustion chamber 230. Reduction in the reduction chamber 240 is a process in which gasification of the biomass is completed. As CO ₂ and H ₂ O (Vapor) generated in the combustion process pass through the bed of biomass char, oxygen in the gas reacts with high temperature C and is reduced and reacted with 2CO, H ₂ + CO to synthesize it. Gas is produced.

Since the mass of the biomass passed through the primary combustion chamber 230 is reduced by about 50% or more, the reduction chamber 240 has a cross-sectional area of about 50% less than that of the primary combustion chamber 230 to maintain an efficient reduction section. Through this, it is possible to secure an appropriate reduction section height in the reduction chamber 240. A reduction part 242 is provided below the inner wall 212 of the housing 210 that partitions the primary combustion chamber 230 so that the biomass of the primary combustion chamber 230 can smoothly flow into the reduction chamber 240. The reduction part 242 has a shape in which the cross-sectional area gradually decreases toward the reduction chamber 240.

The inner wall 212 of the housing 210 surrounding the reduction chamber 240 is provided with a plurality of gas discharge holes 244 for discharging the syngas generated in the reduction chamber 240 from the reduction chamber 240. In addition, a gas collection chamber 246 connected to the plurality of gas discharge holes 244 of the inner wall 212 is formed between the inner wall 212 and the outer wall 211 around the reduction chamber 240. Synthetic gas discharged from the reduction chamber 240 through the plurality of gas discharge holes 244 is collected in the gas collecting chamber 246 and connected to the outer wall 211 of the housing 210 through the gas receiving unit 247. 210 is discharged to the outside. The lower side of the gas collection chamber 246 is partitioned from the charcoal collection chamber 265 by the partition wall 248.

As such, when the gas collecting chamber 246 is provided between the outer wall 211 and the inner wall 212 around the reduction chamber 240, the gas receiving unit 247 is installed to be connected to the gas collecting chamber 246. The syngas generated at 240 may be collected more effectively. That is, in order to collect the synthesis gas directly from the reduction chamber 240, it is difficult to install a gas pipe and the like, and it is difficult to discharge the synthesis gas uniformly and quickly with respect to the entire reduction chamber 240. Therefore, a plurality of gas discharge holes 244 are formed evenly around the inner wall 212 surrounding the reduction chamber 240, and the syngas is collected in the gas collection chamber 246 through these gas discharge holes 244. When the synthesis gas is received from the gas collection chamber 246, the synthesis gas can be discharged uniformly and quickly from the entire reduction chamber 240, and the syngas collection efficiency can be improved. A suction pump or the like may be connected to the gas receiving unit 247. When the suction pump is connected to the gas receiving unit 247, the collection of the syngas and the flow of air supplied to the primary combustion chamber 230 and the secondary combustion chamber 257 are naturally induced. can do.

Steam is supplied to the reduction chamber 240 through the steam supplier 250. The steam supplier 250 may activate the reduction process by injecting steam into the reduction chamber 240, and increase the amount of syngas produced by increasing the amount of CO and H ₂ generated. Steam is injected into the reduction chamber 240 to react the carbonized material with carbon dioxide and carbon monoxide. In addition, the steam serves as a heat medium to maintain a constant temperature inside the housing 210, and enables uniform heat transfer.

The reaction of steam serving as an activation catalyst can be expressed as follows.

H ₂ O + C (S)-> CO + H ₂

CO ₂ + C (S)-> 2CO

Here, C (S) is pyrolysis residue of organic matter and solid carbon produced in the substrate of a biobath by pyrolysis.

In the reduction chamber 240, CO reacts with steam as follows.

CO + H ₂ O ↔ CO ₂ + H ₂

Steam in the reduction chamber 240 may be reacted with carbide to chemically change to CO and CO ₂ , and these reactions activate the process of low molecular weight → pyrolysis (carbonization) → gasification reaction of organic materials by heat.

Steam is preferably supplied to the reduction chamber 240 at an injection rate of 1 ~ 1.5 kg. Steam / kg. Charcoal (C). If steam is supplied below 1 kg steam / kg charcoal (C), the steam may not react sufficiently with carbon, and if steam is supplied exceeding the ratio of 1.5 kg steam / kg charcoal (C), the reduction is rather reduced. There is a fear that the activation efficiency of the process will be reduced.

2 and 3, the steam supplier 250 is installed in the housing 210 to prevent overheating of the steam spray nozzle 251 and the steam spray nozzle 251 that inject steam into the reduction chamber 240. It includes a cooling medium supply pipe 253 for. At least a part of the steam injection nozzle 251 may be disposed in the reduction chamber 240 to inject steam into the reduction chamber 240. A steam injection unit 252 may be connected to the steam injection nozzle 251, and steam supplied from the outside through the steam injection unit 252 may be injected into the steam injection nozzle 251. The injection angle αs of steam injected from the steam injection nozzle 251 to the reduction chamber 240 preferably satisfies the following conditions.

60 ° ≤ αs ≤ 80 °

When the spray angle αs of the steam is less than 60 °, the injected steam is concentrated on a part of the char located in the reduction chamber 240, thereby reducing the activation of the reduction process and the uniform heat transfer effect due to the steam supply. When the spray angle αs of the steam exceeds 80 °, the steam spraying region is limited to around the steam spraying nozzle 251, so that it is difficult for the steam to reach the center of the reduction chamber 240 and the steam spraying pressure needs to be increased. It may occur.

The cooling medium supply pipe 253 is disposed to surround at least a portion of the steam injection nozzle 251. That is, the cooling medium supply pipe 253 includes a supply pipe flow path 254 through which a cooling medium for cooling the steam injection nozzle 251 flows, and at least a portion of the steam injection nozzle 251 in the supply pipe flow path 254. At least a portion of the steam injection nozzle 251 is wrapped so that it rests. One side of the cooling medium supply pipe 253 is provided with a supply pipe inlet 255 for supplying the cooling medium. The cooling medium may be injected through the supply pipe injection unit 255 to flow into the supply pipe flow path 254 to cool the steam injection nozzle 251.

Although not shown in detail in the drawing, the other side of the cooling medium supply pipe 253 may be provided with an outlet for discharging the cooling medium to continuously supply the cooling medium to the cooling medium supply pipe 253.

As the cooling medium injected into the cooling medium supply pipe 253, various materials that may exchange heat with the steam injection nozzle 251 while flowing along the supply pipe flow path 254 such as cooling water or cooling air may be used. By supplying a cooling medium to the cooling medium supply pipe 253 to cool the steam injection nozzle 251, deformation of the steam injection nozzle 251 due to overheating may be prevented.

Steam supply 250 may be disposed in housing 210 in one or more various numbers.

The charcoal of the biomass passing through the reduction chamber 240 moves to the secondary combustion chamber 257. While supplying air to charcoal introduced into the secondary combustion chamber 257, CO ₂ and H ₂ O are generated, and when this is passed again through the bed bed of char in the reduction section, oxygen in the gas reacts with high temperature C and is reduced to reduce 2CO and It will react with H ₂ + CO. As such, when the primary combustion chamber 230 and the secondary combustion chamber 257 are respectively provided above and below the reduction chamber 240, the reduction reaction may be promoted in the reduction chamber 240, thereby increasing the synthesis gas generation rate.

Although not shown, an ignition device may be installed in the secondary combustion chamber 257.

2 and 4 to 7, the char support bed 260 and the charcoal discharger 270 are installed below the secondary combustion chamber 257. The char support bed 260 is provided with a bed passage 261. Charcoal of the secondary combustion chamber 257 may pass through the bed passage 261 to the charcoal collection chamber 265, the air of the charcoal collection chamber 265 may be introduced into the secondary combustion chamber 257.

The char support bed 260 includes a plurality of fixing paddles 262 disposed to be spaced apart from each other on the inner surface of the housing 210. The bed passage 261 is provided between the inner surface of the housing 210 and the plurality of fixing paddles 262. The fixed paddle 262 has a shape in which the char support area and the cross-sectional area gradually increase as it moves away from the inner surface of the housing 210. Here, the cross-sectional area of the fixed paddle 262 is a vertical cross-sectional area with respect to the longitudinal direction of the fixed paddle 262. The fixing paddle 262 is detachably coupled to the bracket 263 fixed to the inner surface of the housing 210. By taking the structure that detachably couples the fixed paddle 262 to the bracket 263 using a fixing member such as a bolt, it is possible to easily perform the installation or replacement of the fixed paddle 262.

As shown in FIGS. 4, 8, and 9, the charcoal ejector 270 includes a plurality of movable paddles 271, a paddle rotation shaft 272 for supporting the plurality of movable paddles 271, and a paddle rotation shaft 272. And a motor 276 that provides a rotational force to the. The paddle axis of rotation 272 is disposed in a direction perpendicular to the moving direction of the char through the bed passage 261, the plurality of movable paddles 271 is coupled to the paddle axis of rotation 272 to be disposed between the plurality of fixed paddles (262) do. The movable paddle 271 has a shape in which the char pressing area and the cross-sectional area gradually increase as it moves away from the paddle rotation axis 272. Here, the cross-sectional area of the movable paddle 271 is a vertical cross-sectional area with respect to the longitudinal direction of the movable paddle 271. The plurality of movable paddles 271 may be divided into equal parts about the paddle rotation axis 272. Although the plurality of movable paddles 271 are disposed at 120 ° intervals along the circumference of the paddle rotation axis 272, the arrangement angles of the movable paddles 271 may be variously changed.

The charcoal discharger 270 partitions the upper secondary combustion chamber 257 and the lower char collection chamber 265 together with the charcoal support bed 260 to allow the movement of the charcoal, and the char of the secondary combustion chamber 257 is sufficient time. After the secondary combustion for a while to support the charcoal of the secondary combustion chamber 257 to move slowly to the charcoal collection chamber (265). Charcoal that is sufficiently secondary burned in the secondary combustion chamber 257 is gradually moved to the charcoal collection chamber 265 by the charcoal discharger 270. That is, when the paddle rotation shaft 272 is rotated by the operation of the motor 276, the movable paddle 271 presses the char on the char support bed 260 to be forced out through the bed passage 261. Of course, because there is a gap between the charcoal discharger 270 and the fixed paddle 262, the charcoal is small in size through the gap between the charcoal discharger 270 and the fixed paddle 262 even though the charcoal discharger 270 does not work. May be discharged from the secondary combustion chamber 257.

As shown, the paddle rotation axis 272 may be arranged in pairs side by side. The pair of paddle rotation shafts 272 may be spaced apart in parallel to each other and rotate in opposite directions. As the pair of paddle rotary shafts 272 rotate in opposite directions, the plurality of movable paddles 271 collects the char of the secondary combustion chamber 257 between the pair of paddle rotary shafts 272 and forces them to the char collection chamber 265. Can be discharged.

The paddle rotation shaft 272 is provided with a rotation shaft flow path 273 through which a cooling medium may flow. And one side of the paddle rotating shaft 272 is provided with a rotating shaft inlet 274 for the inlet of the cooling medium is connected to the rotating shaft flow path 273, the other side of the paddle rotating shaft 272 is a rotating shaft outlet for discharging the cooling medium ( The 275 is provided to be connected to the rotation shaft flow path 273. By supplying a cooling medium to the rotation shaft flow path 273, deformation or damage of the paddle rotation shaft 272 due to overheating can be prevented. As the cooling medium supplied to the rotation shaft flow path 273, various materials capable of heat-exchanging with the paddle rotation shaft 272 while flowing along the rotation shaft flow path 273 such as cooling water or cooling air may be used.

In addition, the charcoal discharger 270 includes a discharge temperature sensor 277 and a discharge control unit 278 for detecting the temperature of the secondary combustion chamber 257. The discharge temperature sensor 277 detects the temperature of the secondary combustion chamber 257 and transmits it to the discharge control unit 278, and the discharge control unit 278 operates or cools the motor 276 according to the temperature of the secondary combustion chamber 257. The media supply operation can be controlled. For example, the discharge controller 278 may perform on / off control, rotation speed control, rotation direction control, etc. with respect to the motor 276 according to the temperature of the secondary combustion chamber 257. In addition, the discharge controller 278 may control the flow of the cooling medium supplied to the paddle rotation shaft 272 according to the temperature of the secondary combustion chamber 257.

The structure of the char support bed 260 and the charcoal discharger 270 is not limited to those shown and may be variously changed. That is, the char support bed 260 can be modified to a variety of other structures having a bed passage 261 through which char can pass. The charcoal discharger 270 opens and closes the bed passage 261 so that the charcoal of the secondary combustion chamber 257 moves to the charcoal collection room 265 while supporting the charcoal of the secondary combustion chamber 257 together with the charcoal support bed 260. It can be modified in various other ways that can be done. As another example, the paddle rotation shaft 272 in which the plurality of movable paddles 271 is disposed may be provided in various numbers other than two.

The lower side of the charcoal collection room 265 is provided with a hopper 280 for collecting charcoal. Hopper portion 280 has a shape that gradually decreases its width toward the lower side. The lower end of the hopper portion 280 is provided with a housing discharge portion 216 is provided with a housing discharge port 217. Charcoal falling into the charcoal collection room 265 is collected in the housing discharge portion 216 is moved to the charcoal feeder (300).

The charcoal cooler 282 is disposed in the housing outlet 216. 2 and 10, the charcoal cooler 282 serves to cool the hot charcoal by spraying a cooling medium on the housing discharge part 216. The charcoal cooler 282 is installed in the housing 210 includes a cooling medium spray nozzle 283 for injecting a cooling medium to the housing outlet 216. At least a portion of the cooling medium injection nozzle 283 may be disposed inside the housing discharge part 216 to inject the cooling medium into the char passing through the inside of the housing discharge part 216. The cooling medium injection unit 284 is disposed at one side of the cooling medium injection nozzle 283. The cooling medium injector 284 includes an air injector 285 and a coolant injector 286. Cooling air is injected into the cooling medium injection nozzle 283 through the air injection unit 285, and cooling water is injected into the cooling medium injection nozzle 283 through the cooling water injection unit 286, thereby cooling the cooling medium. The nozzle 283 may spray a cooling medium in which air and cooling water are mixed. That is, the cooling medium spray nozzle 283 may spray the cooling water to spray the atomized cooling water particles, thereby maximizing the cooling efficiency of the charcoal.

In addition, by injecting air together with the coolant through the cooling medium injection nozzle 283 to the housing discharge unit 216, the secondary combustion chamber 257 may be supplied with air for smoothly secondary combustion. Appropriate amount of air can be supplied to the secondary combustion chamber 257 by appropriately adjusting the air injection amount through the cooling medium injection nozzle 283.

The spray angle αc of the cooling medium injected through the cooling medium injection nozzle 283 preferably satisfies the following conditions.

60 ° ≤ αc ≤ 80 °

When the spray angle αs of the cooling medium is less than 60 °, the cooling area applied by the cooling medium in the housing discharge part 216 may be small, and thus the overall cooling efficiency may decrease in the housing discharge part 216. When (αc) exceeds 80 °, the pressure that the cooling medium reaches the surface of the char is lowered, so that it does not enter the inside of the char, and as a result, the cooling efficiency of the char may be reduced. In this case, the cooling medium is difficult to reach the char passing through the center of the housing discharge portion 216 relatively far from the cooling medium injection nozzle 283, there is a concern that the problem of increasing the cooling medium injection pressure may occur.

In addition, the charcoal cooler 282 includes a cooling control valve 287 for controlling the flow of the cooling medium supplied to the cooling medium injection nozzle 283 and a cooling temperature for detecting the temperature inside the housing discharge part 216. Sensor 288. The cooling control valve 287 may be automatically controlled according to the detection signal of the cooling temperature sensor 288. For example, the cooling medium is supplied to the cooling medium injection nozzle 283 only when the temperature of the housing discharge part 216 detected by the cooling temperature sensor 288 is higher than or equal to a preset temperature, thereby cooling through the cooling medium injection nozzle 283. The medium may be injected into the housing outlet 216. As such, the operation of the cooling medium injection nozzle 283 is interrupted according to the temperature of the housing discharge part 216, thereby minimizing the inflow of the cooling medium to avoid excessive cooling of the charcoal and the charcoal discharge temperature at an appropriate temperature (eg, 90 ° C). ) Can be maintained. In addition, it is possible to prevent waste of the cooling medium and reduce operating costs.

As described above, the biomass gasifier 200 according to an embodiment of the present invention is the biomass introduced into the housing input unit 214 of the upper drying chamber 220, pyrolysis chamber 228, primary combustion chamber 230 The gasification is performed while sequentially passing through the reduction chamber 240 and the secondary combustion chamber 257. The biomass gasifier 200 is provided with two combustion zones with a reduction chamber 240 therebetween, through which synthesis gas is generated, and drying of biomass, low temperature carbonization, and decomposition of gas are performed in the reduction chamber 240. What happens at the top, has the advantages of both conventional upflow and downflow devices. That is, compared with the conventional biomass gasifier, less tar and dust are generated and the pyrolysis efficiency is high, so the gasification efficiency is excellent.

In addition, the biomass gasification apparatus 200 according to an embodiment of the present invention activates the reduction process by supplying steam through the steam supplier 250 to the reduction chamber 240 where the gasification of the biomass is completed as the reduction process proceeds. In addition, the production amount of the synthesis gas can be increased by increasing the amount of CO and H ₂ produced in the reduction chamber 240.

In addition, the biomass gasifier 200 according to an embodiment of the present invention is gradually discharged from the secondary combustion chamber 257 while the char support bed 260 and the charcoal discharger 270 hold the char of the secondary combustion chamber 257. Therefore, the char in the secondary combustion chamber 257 is secondary combustion while staying in the secondary combustion chamber 257 for a sufficient time to supply CO ₂ and H ₂ O to the reduction chamber 240 to increase the amount of synthesis gas generated in the reduction chamber 240. You can.

The charcoal discharged to the housing discharge part 216 of the biomass processing facility 100 is transferred to the charcoal sorter 400 by the charcoal feeder 300.

As shown in Figures 1 and 2, the charcoal feeder 300 is coupled to the housing 210 to forcibly transport the charcoal transport pipe 310 and charcoal installed in the charcoal transport pipe 310 to guide the charcoal; The transfer conveyor 316 and the opening and closing valve 318 for opening and closing the charcoal transfer path 330 between the charcoal separator 400 in the housing 210.

Charcoal transfer pipe 310 is coupled to the housing 210 to cover the housing outlet 217. Inside the charcoal transport pipe 310 is provided with a charcoal transport path 311 through which char can pass. And one side of the char transport pipe 310 is provided with a transport pipe inlet 312 is connected to the housing outlet 217 so that the char is introduced into the char transport path 311, the other side of the char transport pipe 310 There is provided a transfer pipe outlet 313 through which the char of the charcoal transfer path 311 is discharged. The transfer conveyor 316 is disposed in the charcoal transfer path 311 to forcibly transfer the char injected into the transfer pipe inlet 312 to the transfer pipe discharge port 313. Charcoal discharged from the charcoal transport pipe 310 through the transport pipe outlet 313 is guided to the charcoal sorter 400 side through a transport guide pipe 314 connected to the charcoal transport pipe 310.

The open / close valve 318 is installed in the transfer guide tube 314 to open and close the passage inside the transfer guide tube 314. The open / close valve 318 opens the inner passage of the transfer guide tube 314 when transferring the char to the charcoal sorter 400. In addition, the opening / closing valve 318 may block the inner passage of the transfer guide tube 314 to prevent outside air from entering the inside of the housing 210 through the char conveyor 300. The on / off valve 318 may smoothly reduce the reaction inside the housing 210 by suppressing the inflow of air through the charcoal feeder 300.

Charcoal transport pipe 310 is disposed inclined with respect to the ground so that the transport pipe outlet 313 is located higher than the transport pipe inlet 312. Therefore, the char injected into the feed pipe inlet 312 is pumped up to the feed pipe discharge port 313 by the transfer conveyor 316. During the process of the charcoal ascending to the transport pipe outlet 313 by the transport conveyor 316, the cooling water or moisture buried in the charcoal flows downward. Therefore, while the charcoal is transported along the charcoal conveying path 311, moisture on the charcoal may be removed.

The water discharge unit 320 is provided at a position lower than the feed pipe inlet 312 of the charcoal feed pipe 310. Therefore, the moisture removed from the charcoal may be discharged to the outside through the water discharge unit 320. The water discharge part 320 is provided with a water discharge valve 321. The water discharge valve 321 opens and closes the internal flow path of the water discharge unit 320. The water discharge valve 321 may discharge the water through the water discharge unit 320 by opening the internal flow path of the water discharge unit 320 when water flows down to the water discharge unit 320. In addition, the water discharge valve 321 may prevent the outside air from flowing into the housing 210 through the charcoal feeder 300 by shielding the internal flow path of the water discharge unit 320. The water discharge valve 321 can smoothly reduce the reaction inside the housing 210 by inhibiting the inflow of air through the charcoal feeder (300).

Charcoal feeder 300 may be changed to various other structures that can transfer the char discharged to the housing discharge unit 216 to the charcoal sorter 400 in addition to the illustrated structure. For example, the transfer conveyor 316 for forcibly transferring charcoal may be modified in various other structures than the screw conveyor type as shown. In addition to the transfer guide tube 314 of the char transfer pipe 310, the opening / closing valve 318 may be disposed at various other positions in the char transfer path 330 between the housing discharge part 216 and the charcoal separator 400. have.

As shown in Figure 1 and 11, the charcoal sorter 400 sorts the char discharged from the biomass processing facility 100 by size. The charcoal sorter 400 includes a sorter housing 410, a sorting member 420 disposed inside the sorter housing 410, and a sorter driver 430 for driving the sorting member 420.

One side of the sorter housing 410 is provided with a sorting input unit 411, the char is fed through the char transport 300. In addition, the sorter housing 410 has a primary sorting charcoal collecting portion 412 for discharging relatively small char is primarily sorted by the sorting member 420, and a relatively large char sorted secondary by the sorting member 420 Secondary charcoal collection unit 413 for discharging is provided.

 The sorting member 420 has a drum shape having a plurality of sorting holes 423 through which a relatively small char is passed among the chars fed into the sorting input part 411. A sorting inlet 421 connected to the sorting input part 411 is provided at one end of the sorting member 420, and a sorting outlet 422 is provided at the other end of the sorting member 420. Charcoal introduced into the sorting member 420 through the sorting inlet 421 is moved to the sorting outlet 422 side, and in this process, a relatively small char is drawn out to the sorting hole 423 and is relatively sized. Large char is discharged through the sorting outlet 422. The primary sorting charcoal through the sorting hole 423 exits the sorter housing 410 through the primary sorting char collection 412 of the sorter housing 410. Charcoal discharged from the primary sorting charcoal collection unit 412 may be collected in the charcoal bin (440). The secondary sorting char that does not pass through the sorting hole 423 is discharged from the sorter housing 410 through the secondary sorting char collection 413 of the sorter housing 410. Charcoal discharged from the secondary screening charcoal collection unit 413 may be collected in another charcoal container (442).

The sorter driver 430 may be disposed in the sorter housing 410 to provide rotational force to the sorting member 420. The sorter driver 430 includes a sorting member drive shaft 431 coupled to the sorting member 420. The sorting member 420 may rotate with the sorting member drive shaft 431 as the rotation center axis. As the sorter driver 430 rotates the sorting member 420, the char input into the sorting member 420 may be smoothly moved to the sorting outlet 422 while moving to the sorting outlet 422.

The charcoal sorter 400 may be changed to various other structures capable of selecting charcoal by size in addition to the illustrated structure. As another example, although the sorting member 420 is shown as a drum-like trommel screen structure, the sorting member 420 has a variety of different sorting holes that can pass through the charcoal in addition to the trommel screen according to the size It can be changed into a shape. In addition, the drawing hole 423 is shown as being made of a hexagonal shape, the size and shape of the selection hole, the arrangement interval may be variously changed. If the sorting holes of different sizes are arranged in the sorting member by size, the char can be sorted by various sizes.

In addition, the sorter driver 430 may be changed to various other structures capable of moving the sorting member 420 according to the shape of the sorting member 420, in addition to the structure providing the rotational force to the sorting member 420. In addition, the sorting member 420 is inclined with respect to the ground so that the sorting outlet 422 is lower than the sorting inlet 421 so that the char introduced through the sorting inlet 421 can move more smoothly toward the sorting outlet 422. Can be arranged.

As described above, the biomass processing facility 100 according to the embodiment of the present invention efficiently produces a synthesis gas using the biomass gasifier 200, and effectively collects char which is a byproduct of the gasification process. Can be recycled.

The invention has been shown and described in connection with a preferred embodiment for illustrating the principles of the invention, but the invention is not limited to the configuration and operation as shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

100: biomass processing facility 200: biomass gasifier
210: housing 214: housing input
216 housing outlet 220 drying chamber
222 dry stirrer 228 pyrolysis chamber
230: primary combustion chamber 232: air supply
240: reduction chamber 246: gas collection chamber
247: gas receiver 250: steam supply
257 secondary combustion chamber 260 charcoal support bed
262: fixed paddle 265: charcoal collection room
270: charcoal ejector 271: movable paddle
280: hopper portion 282: charcoal cooler
283: cooling medium spray nozzle 300: charcoal feeder
310: charcoal transfer pipe 314: transfer guide pipe
316: conveying conveyor 400: charcoal sorter
410: sorter housing 420: sorting member

Claims (6)

A housing having an inner space; A housing input part provided in the housing for injecting biomass into the housing; A drying chamber provided below the housing input part to dry the biomass introduced through the housing input part; A pyrolysis chamber provided below the drying chamber for thermally decomposing the biomass descending from the drying chamber; A primary combustion chamber provided below the pyrolysis chamber for primary combustion of biomass descending from the pyrolysis chamber while supplying air; An air supply installed in the housing for supplying air to the primary combustion chamber; A reduction chamber disposed below the primary combustion chamber to stack biomass that is first burned down in the primary combustion chamber and be laminated with charcoal and to generate syngas from the char of biomass; At least a portion of which is disposed in the reduction chamber and has a supply pipe flow path through which a steam injection nozzle installed in the housing and a cooling medium for cooling the steam injection nozzle can flow, so as to inject steam into the reduction chamber. A steam supply having a cooling medium supply pipe disposed to surround at least a portion of the steam injection nozzle so that at least a portion of the steam injection nozzle is placed in a flow path; A secondary combustion chamber provided below the reduction chamber so that the charcoal descending from the reduction chamber can be secondary burned; A gas receiver disposed in the housing such that a gas flow is connected to the reduction chamber so as to receive the synthesis gas generated in the reduction chamber; A housing discharge part provided below the secondary combustion chamber to discharge the charcoal passing through the secondary combustion chamber to the outside of the housing; It is installed on the lower side of the secondary combustion chamber to support the charcoal, but the charcoal can pass through the lower side, which is arranged to be spaced apart from each other on the inner surface of the housing, the char support area gradually increases as the distance from the inner surface of the housing A char support bed having a plurality of fixing paddles having a shape and a bed passage provided between the inner surface of the housing and the plurality of fixing paddles to allow the char to pass downward; And for forcibly discharging the charcoal placed on the charcoal support bed through the bed passage, wherein the plurality of paddle rotation shafts are arranged in parallel with each other, and the char pressing area gradually increases as the paddle rotation shaft moves away from the paddle rotation shaft. A biomass gasifier comprising; a charcoal discharger comprising a plurality of movable paddles disposed on the paddle axis of rotation so as to be positioned between the plurality of stationary paddles, and a motor providing rotational force to the paddle axis of rotation;
And a sorting input unit through which char discharged from the housing discharge part of the biomass gasifier is introduced, and a sorting member having a plurality of sorting holes through which relatively small char can pass from among the chars introduced into the sorting input unit. Charcoal sorter;
It is for transferring the char discharged through the housing outlet to the sorting input of the charcoal sorter, the transfer pipe inlet connected to the housing discharge port so that the char discharged through the housing discharge port, and the transfer pipe discharge port discharged charcoal And, Charcoal transfer pipe having a charcoal transfer path connecting the transfer pipe inlet and the transfer pipe discharge port, the charcoal transfer path is inclined with respect to the ground so that the transfer pipe discharge port is located higher than the transfer pipe inlet;
A transport conveyor disposed in the char transport pipe so as to force the char injected into the transport pipe inlet to the transport pipe discharge port; And
And a water discharge part disposed lower than the transfer pipe inlet in the char transfer pipe so as to discharge the water of the char transfer path to the outside. delete delete delete delete delete

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