CN108571817A - Biomass fuel environment-protection boiler - Google Patents
Biomass fuel environment-protection boiler Download PDFInfo
- Publication number
- CN108571817A CN108571817A CN201810273010.0A CN201810273010A CN108571817A CN 108571817 A CN108571817 A CN 108571817A CN 201810273010 A CN201810273010 A CN 201810273010A CN 108571817 A CN108571817 A CN 108571817A
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- China
- Prior art keywords
- fire grate
- burner hearth
- flue gas
- biomass fuel
- tube
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B30/00—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber
- F23B30/02—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts
- F23B30/06—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel supporting surfaces that are specially adapted for advancing fuel through the combustion zone
- F23B30/10—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel supporting surfaces that are specially adapted for advancing fuel through the combustion zone with fuel-supporting surfaces having fuel advancing elements that are movable, but remain essentially in the same place, e.g. with rollers or reciprocating grate bars
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H11/00—Travelling-grates
- F23H11/12—Travelling-grates inclined travelling grates; Stepped travelling grates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H11/00—Travelling-grates
- F23H11/18—Details
- F23H11/22—Moving fuel along grate; Cleaning of grate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H11/00—Travelling-grates
- F23H11/18—Details
- F23H11/24—Removal of ashes; Removal of clinker
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1845—Arrangement or mounting of combustion heating means, e.g. grates or burners using solid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05325—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
- F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
- F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
- F24H1/285—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes with the fire tubes arranged alongside the combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The present invention relates to field of boilers, specially a kind of biomass fuel environment-protection boiler.Setting burner hearth and three backhaul heat exchanger of shell and tube in furnace body, the upper side of burner hearth is connected to by pipeline with three backhaul heat exchanger of shell and tube, reciprocating fire grate is arranged in the bottom of burner hearth, reciprocating fire grate is staged fire grate structure, setting automatic ignitor and biological particles feeder, the staged fire grate structure above the outer end of reciprocating fire grate：One end that reciprocating fire grate is located at biological particles feeder is high, and one end that reciprocating fire grate is located inside burner hearth is low, and biomass fuel burns in the higher part of staged fire grate structure, and lime-ash is formed in the lower part of staged fire grate structure；Using fire grate determine and dynamic fire grate interlocks storied placement, the bottom for moving fire grate is connect with reciprocal dragging system reciprocating fire grate respectively.Pollution-free, high efficiency of the invention, being capable of abundant burning crop straws particle.
Description
Technical field
The present invention relates to field of boilers, specially a kind of biomass fuel environment-protection boiler.
Background technology
Biomass is the various wastes generated in production estimation, such as：Stalk, rice husk, peanut shell, maize straw, wood
Bits, bark etc., referred to as biomass.Since produced biomass is all flammable, renewable, total amount is big, thus it is the earth now
On the 4th energy in addition to coal, oil, natural gas.With energy situations such as severe power shortage, oily famine, electricity price rises, rises of the oil price
Anxiety and problem of environmental pollution it is increasingly serious, industry-by-industry start the use to regenerative resource consciousness gradually reinforce,
The utilization of wherein biomass energy is current most practicable solution.
With the development of modern industry, world energy sources will be increasingly in short supply.Coal, oil etc. are used as a kind of non-renewable resources, no
Exhaustion will be faced long.In the long run, tellurian resource is limited, and the mankind are to be continuous and unbroken to the consumption of resource
Increase.Currently in process of industrialization, Sustainable Socioeconomic Development faces the multiple pressure of resource and environment in China, finds
New energy resources replace the resources such as coal, the oil of part, are conducive to the pressure for alleviating resource scarcity, are advantageously implemented every production
The sustainable development of industry.
Coal in China consumption occupies 60% of total energy consumption or more, and this energy resource structure based on coal makes coal smoke
Type pollution becomes the main pollution of In The Atmosphere Over China pollution.In order to improve the ecological environment, promotes peasant programme, it is strong to improve the people
Kang Shuiping, the Chinese government is raising efficiency, emphasis of the environmental protection as sustainable economic development.Therefore, it pushes and promotes
The development of the biomass fuel heating equipment of efficient low-discharging, to Biomass Energy Development cause, improving the ecological environment has weight
The meaning wanted.This project implementation, using environmental protection, energy-saving and emission-reduction as primary motivitation, fuel used in product, alternative coal
Charcoal generates heat, and is conducive to reduce pollution, preserve the ecological environment.
China produces several hundred million tons of stalks every year, wherein more than half be turned into ashes in raging flames.The season harvested every year
Section, sky and the earth shroud in smog：Aircraft can not land, traffic can not normal pass, people's expiratory dyspnea, frequently cough
Deng seriously affecting the health of people normally gone on a journey.If these stalks recycled, the burning both avoided, simultaneously
It saves, develop again, using the energy, important and far-reaching influence is all generated to country, environment, individual.
Earth home for the survival of mankind is just invaded by modern industry.Waste water, waste residue, exhaust gas are continuously arranged
It puts, results in various diseases, unconsciously wrecking our health.With the development of modern industry, full generation
The hundreds of millions of chimney in boundary converges into a huge black " demon ", seriously threatens earth home for the survival of mankind.Together
When, full of smoke, respiratory tract environment is increasingly severe, constitutes to life and health and greatly threatens.This product energy conservation and environmental protection biomass
The use of fuel heating equipment reduces exhaust gas discharge, the discharge of harmful substance in air is substantially reduced, big compression ring is protected
Border further makes environment be optimized, and ensures human health.
Invention content
The purpose of the present invention is to provide a kind of pollution-free, efficient biomass fuel environment-protection boilers, can fully fire
Burn agricultural crop straw (maize straw) particle.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of biomass fuel environment-protection boiler, including：Three backhaul heat exchanger of shell and tube, burner hearth, reciprocating fire grate, furnace body,
Concrete structure is as follows：
Setting burner hearth and three backhaul heat exchanger of shell and tube, the upper side of burner hearth are returned by pipeline and shell and tube three in furnace body
Pass heat exchanger is connected to, and reciprocating fire grate is arranged in the bottom of burner hearth, and reciprocating fire grate is staged fire grate structure, reciprocating fire grate
Setting automatic ignitor and biological particles feeder, the staged fire grate structure above outer end：Reciprocating fire grate position
High in one end of biological particles feeder, one end that reciprocating fire grate is located inside burner hearth is low, and biomass fuel is in ladder
The higher part burning of formula fire grate structure forms lime-ash in the lower part of staged fire grate structure；Reciprocating fire grate is using fixed
Fire grate and dynamic fire grate interlock storied placement, and the bottom of dynamic fire grate is connect with reciprocal dragging system respectively.
The biomass fuel environment-protection boiler, reciprocating fire grate are total to eleventh floor：Six layers for determine fire grate, five layers be stove
Row, first layer move fire grate bottom and are connect with the reciprocal dragging system of level-one, under the drive of the reciprocal dragging system of level-one, made reciprocating
Biomass fuel on fire grate is uniformly distributed；The bottom of the second to five layer of dynamic fire grate is connect with the reciprocal dragging system of two level, two
Under the drive of the reciprocal dragging system of grade, fuel that is preheating and catching fire uniformly is taken to primary zone and after-flame, and lime-ash is pushed into
Extinguish area and grey vehicle.
Two smoke chambers, tubulation is arranged in the top of the biomass fuel environment-protection boiler, three backhaul heat exchanger of shell and tube
Two smoke chambers are arranged in the bottom of three backhaul heat exchanger of formula, and three backhaul heat exchanger of shell and tube includes that three groups of flue gases are restrained, first group
The top of flue gas tube bank be connected to first smoke chamber, bottom that the tube bank of first group of flue gas and second group of flue gas are restrained and second
Smoke chamber is connected to, and the top of second group of flue gas tube bank and the tube bank of third group flue gas is connected to third smoke chamber, third group flue gas
The bottom of tube bank is connected to the 4th smoke chamber, and the high-temperature flue gas outlet of the 4th smoke chamber is connected to smoke evacuation system, forms three
Backhaul heat exchange structure.
The biomass fuel environment-protection boiler, at the high-temperature flue gas outlet of upper furnace side, high-temperature flue gas passes through successively
Cross first smoke chamber, first group of flue gas tube bank, second smoke chamber, second group of flue gas tube bank, third smoke chamber, third group
Flue gas tube bank, the 4th smoke chamber, the high-temperature flue gas after three backhauls heat exchange, chimney is expelled to by smoke evacuation system.
The periphery of the biomass fuel environment-protection boiler, three backhaul heat exchanger of burner hearth and shell and tube is water jacket, water jacket
Cold water inlet is arranged in lower part on the outside of three backhaul heat exchanger of shell and tube, and cold water enters water jacket by cold water inlet, is located at stove
Water jacket at the top of thorax is equipped with boiler hot-water outlet, moisturizing and relief valve connection and boiler hot-water temperature sensor interface, is arranging
Place is communicated with the water jacket of burner hearth top at the top of the water jacket of three backhaul heat exchanger of tubular type, recuperator inlet temperature sensing device is set.
The biomass fuel environment-protection boiler, outer middle side part setting burner hearth high-temperature region temperature sensing of the furnace body close to burner hearth
Device and secondary air system, the air outlet of secondary air system, the thermometric end of burner hearth high-temperature region temperature sensing device extend in burner hearth
The high-temperature region in portion.
The biomass fuel environment-protection boiler, diversion pipe is arranged in parallel oblique up and down at the middle part of burner hearth, and diversion pipe inclines
Tilted direction be fed side burner hearth sidewall, slope down to on the side wall of the side wall opposite side.
The biomass fuel environment-protection boiler is located at the top of the diversion pipe of lower part and chimney arch plate is arranged, chimney arch plate totally nine row.
The biomass fuel environment-protection boiler, reciprocating fire grate use heat-resisting cast iron reciprocating fire grate.
Advantages of the present invention and advantageous effect are：
1, currently, three provinces in the northeast of China have begun to ban 10t/H or less coal-burning boilers, need by central heating, gas fired-boiler,
Electric boiler, oil burning boiler etc. substitute, and the area for not having central heating can only use gas fired-boiler, electric boiler, oil burning boiler,
If changing the particle boiler for meeting Environmental Law into, fuel cost will save 30~50%.The CO generated when burning particles2Tree will be passed through
Wooden, plant photosynthesis is absorbed, if the carbon dioxide after granulating in it will not increase air by boiler combustion.
2, since present petrochemical industry class energy prices constantly rise, the cost of each main body of real economy is considerably increased, is saved
It can the environmentally friendly certainty for becoming economic development.It continues reliance on and spells the energy to increase industrial output, be difficult to maintain high speed even
Stable economy increases.The especially use of petrochemical industry class energy products can also cause numerous serious pollutions.Due to pollution treatment cost
It is higher, or even it is far longer than the technical fee needed for lift technique.So adapted biomass energy conservation and environmental protection industry development of the present invention
Trend realizes efficient, energy-saving and environmental protection, the directions such as pollution-free (smokeless, dustless, harmless) discharge, and obtains certain effect.
3, the present invention analyzes the combustion air dynamics of different straw briquette fuels, optimization radiation heating-surface, convection current by
The structural parameters in hot face propose heating surface layout design method；Test concentration field of the different straw briquette fuels in stove, temperature
Field variation, improves ash erosion feature, establishes CO emission control techniques；Mainly solve biomass fuel slagging and CO emission controls
Core technology problem, the abundant biomass burning energy (cornstalk particle) make NO2、SO2, CO etc. discharge reach the world most
The air pollution emission benchmark of high level；By to burner hearth, fire grate, automatic control system, the theory analysis of smoke pipe and design, grinding
Send out the boiler with stability, durability, efficiency, clean environment firendly.
4, the present invention develops hearth construction, structure and size and the CO and NO of burner hearth2Discharge, boiler thermal efficiency
It maximizes and heat transfer area etc. has relationship, by analyzing the kinetics of combustion of different straw briquette fuels, optimization radiation heating-surface,
The structural parameters of convection heating surface carry out burner hearth size and the design of construction.
5, the present invention slag emission system is developed, at present biomass especially stalk particle burning when easily occur
The problems such as slagging, alkali metal and chlorine corrosion, flying dust is serious in equipment, lime-ash not only influence the hot property of burning, or even jeopardize pot
The safety of stove, by using staged fire grate structure and coking grinding device, timely by rows such as lime-ash when boiler being enable to work
It goes out.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.In figure, the outlet of 1 boiler hot-water；2 moisturizings and relief valve connection；3 heat exchangers
Inlet temperature sensing device；4 shell and tube, three backhaul heat exchanger；5 smoke evacuation systems；6 cold water inlets；7 sewage draining exits；8 lime-ash；9 burner hearths；
10 chimney arch plates；11 fuel；12 heat-resisting cast iron reciprocating fire grates；The reciprocal dragging system of 13 two levels；The reciprocal dragging system of 14 level-ones；15
Automatic ignitor；16 biological particles feeders；17 burner hearth high-temperature region temperature sensing devices；18 secondary air systems；19 water conservancy diversion
Pipe；20 boiler hot-water temperature sensor interfaces；21 water jackets；22 smoke chambers；23 furnace bodies；24 flue gases are restrained.
Specific implementation mode
As shown in Figure 1, biomass fuel environment-protection boiler of the present invention, includes mainly：Boiler hot-water outlet 1, moisturizing and safety
Valve interface 2, recuperator inlet temperature sensing device 3, three backhaul heat exchanger 4 of shell and tube, smoke evacuation system 5, cold water inlet 6, blowdown
Mouth 7, lime-ash 8, burner hearth 9, chimney arch plate 10, fuel 11, heat-resisting cast iron reciprocating fire grate 12, the reciprocal dragging system 13 of two level, level-one
Reciprocal dragging system 14, automatic ignitor 15, biological particles feeder 16, burner hearth high-temperature region temperature sensing device 17, two
Secondary wind system 18, diversion pipe 19, boiler hot-water temperature sensor interface 20, water jacket 21, smoke chamber 22, furnace body 23 etc., it is specific to tie
Structure is as follows：
Setting burner hearth 9 and three backhaul heat exchanger 4 of shell and tube, the upper side of burner hearth 9 pass through pipeline and tubulation in furnace body 23
Three backhaul heat exchanger 4 of formula is connected to, and the periphery of three backhaul heat exchanger 4 of burner hearth 9 and shell and tube is water jacket 21, and water jacket is located at shell and tube
Cold water inlet 6 is arranged in the lower part in three backhaul heat exchangers, 4 outside, and cold water enters water jacket by cold water inlet 6, is located at 9 top of burner hearth
Water jacket be equipped with boiler hot-water outlet 1, moisturizing and relief valve connection 2 and boiler hot-water temperature sensor interface 20, in tubulation
Place, setting recuperator inlet temperature sensing device 3 are communicated at the top of the water jacket of three backhaul heat exchanger 4 of formula with the water jacket of burner hearth 9 top.
To efficiently control hot water temperature, and moisturizing in time and the safe hydraulic pressure of guarantee as needed.Furnace body 23 is close to the outer of burner hearth 9
Burner hearth high-temperature region temperature sensing device 17 and secondary air system 18 is arranged in middle side part, and air outlet, the burner hearth of secondary air system 18 are high
The thermometric end of warm area temperature sensing device 17 extends to the high-temperature region at 9 middle part of burner hearth, the temperature for measuring 9 high-temperature region of burner hearth.Separately
Outside, sewage draining exit 7 is arranged in 23 lower part of furnace body for being located at three backhaul heat exchanger of shell and tube, 4 outside.
Two smoke chambers 22 are arranged in the top of three backhaul heat exchanger 4 of shell and tube, and the bottom of three backhaul heat exchanger 4 of shell and tube is set
Set two smoke chambers 22, three backhaul heat exchanger 4 of shell and tube includes that three groups of flue gases restrain 24, the top of first group of flue gas tube bank and the
The bottom of one smoke chamber connection, first group of flue gas tube bank and the tube bank of second group of flue gas is connected to second smoke chamber, second group
Flue gas restrain and third group flue gas tube bank top be connected to third smoke chamber, third group flue gas restrain bottom and the 4th
Smoke chamber is connected to, and the high-temperature flue gas outlet of the 4th smoke chamber is connected to smoke evacuation system 5, forms three backhaul heat exchange structures.Burner hearth
At the high-temperature flue gas outlet of 9 upper sides, high-temperature flue gas passes through first smoke chamber successively, first group of flue gas is restrained, second
Smoke chamber, second group of flue gas tube bank, third smoke chamber, the tube bank of third group flue gas, the 4th smoke chamber, exchange heat by three backhauls
High-temperature flue gas afterwards is expelled to chimney by smoke evacuation system 5, and smoke evacuation system 5 uses 5.5kw High-temp. smoke-exhausting fans.
The bottom setting heat-resisting cast iron reciprocating fire grate 12 of burner hearth 9, heat-resisting cast iron reciprocating fire grate 12 is staged fire grate
Structure, the outer end top setting automatic ignitor 15 and biological particles feeder 16 of heat-resisting cast iron reciprocating fire grate 12, institute
The staged fire grate structure stated：One end that heat-resisting cast iron reciprocating fire grate 12 is located at biological particles feeder 16 is high, heat-resisting
One end that cast iron reciprocating fire grate 12 is located inside burner hearth 9 is low, and biomass fuel 11 is in the higher part of staged fire grate structure
Burning forms lime-ash 8 in the lower part of staged fire grate structure.
Totally 11 layers of heat-resisting cast iron reciprocating fire grate 12：6 layers for determine fire grate, 5 layers be fire grate, the dynamic fire grate bottom of first layer and
The reciprocal dragging system 14 of level-one connects, and under the drive of the reciprocal dragging system of level-one 14, makes on heat-resisting cast iron reciprocating fire grate 12
Biomass fuel 11 be uniformly distributed；The reciprocal dragging system of the bottom of the second to five layer of dynamic fire grate and two level 13 is connect, in two level
Under the drive of reciprocal dragging system 13, fuel 11 that is preheating and catching fire uniformly is taken to primary zone and after-flame, and lime-ash 8
Push-in extinguishes area and grey vehicle.
Diversion pipe 19 is arranged in parallel oblique up and down at the middle part of burner hearth 9, and the inclined direction of diversion pipe 19 is the stove for being fed side
9 side wall of thorax, slope down to on the side wall of the side wall opposite side, can be effectively in burner hearth 9 using this structure
Pyrotechnics carry out water conservancy diversion, improve the thermal efficiency.The top of diversion pipe 19 setting chimney arch plate 10 positioned at lower part, totally 9 row of chimney arch plate 10,
The lower section for the chimney arch plate 10 being obliquely installed is corresponding with the air outlet of secondary air system 18, to reinforce the mixing of gas stream in the stove, closes
Manage tissue stove in heat radiation and heat smoke flowing, to achieve the purpose that catch fire in due course, it is vigorous burn and fully burn.
When work, biological particles are sent into burner hearth 9 through batcher, and automatic ignitor 15 works, after ten minutes 11 points of fuel
Combustion, reciprocal 14 automatic running of dragging system of level-one and uniform distribution, due to high-temperature flue gas and main combustion wind action, fuel 11 is gradually
It preheats, dries, catches fire, burning, the 10 scorching hot accumulation of energy of chimney arch plate being laid on diversion pipe 19 in burner hearth 9, temperature is rapid in burner hearth 9
It improves, a large amount of fugitive constituents are precipitated in the fuel 11 being pushed into burner hearth 9, and burning reaches deflagration state, and the high-temperature flue gas of generation washes away pot
4 heating surface of stove and three backhaul heat exchanger of shell and tube, the cold water in water jacket 21 is heated, gradually completes cold and hot exchange, in burner hearth 9
Diversion pipe 19 is so that cold and hot exchange cycles reach best.The reciprocal dragging system 13 of two level is run, fuel that is preheating and catching fire
11 uniformly take primary zone and after-flame to, and also lime-ash 8 is pushed into and extinguishes area and grey vehicle, the low temperature that burning is completed and generated after heat exchange
Flue gas is discharged through smoke evacuation system 5 by chimney.
Embodiment the result shows that, biomass boiler SO of the present invention2Discharge capacity reach 50PPM or less, CO discharge capacities reach
150PPM or less, NO2Discharge capacity reaches 150PPM or less.The present invention successfully researches and develops and grasps the core skill of biomass environment-friendly boiler
Art, it is contemplated that will be provided with producing 200 production capacity per year, research and develop successfully by obtain 30% occupation rate of market, according to can sell every year
Sell 200, it is contemplated that annual sales revenue is more than 80,000,000 RMB, increases 12,000,000 yuan of profits tax, 70 people of new entrants to the labor force newly.
Claims (9)
1. a kind of biomass fuel environment-protection boiler, which is characterized in that including：Three backhaul heat exchanger of shell and tube, burner hearth, reciprocating stove
Row, furnace body, concrete structure are as follows：
Setting burner hearth and three backhaul heat exchanger of shell and tube, the upper side of burner hearth are changed by pipeline and three backhaul of shell and tube in furnace body
Reciprocating fire grate is arranged in the bottom of hot device connection, burner hearth, and reciprocating fire grate is staged fire grate structure, the outer end of reciprocating fire grate
Automatic ignitor and biological particles feeder, the staged fire grate structure is arranged in top：Reciprocating fire grate is located at life
One end of material grains feeder is high, and one end that reciprocating fire grate is located inside burner hearth is low, and biomass fuel is in terraced wall furnace
The higher part burning of structure is arranged, lime-ash is formed in the lower part of staged fire grate structure；Reciprocating fire grate, which uses, determines fire grate
Interlock storied placement with dynamic fire grate, the bottom of dynamic fire grate is connect with reciprocal dragging system respectively.
2. biomass fuel environment-protection boiler described in accordance with the claim 1, which is characterized in that reciprocating fire grate is total to eleventh floor：Six
Layer for determine fire grate, five layers be fire grate, the dynamic fire grate bottom of first layer is connect with the reciprocal dragging system of level-one, is back and forth dragged in level-one
Under the drive of system, the biomass fuel on reciprocating fire grate is made to be uniformly distributed；The bottom of the second to five layer of dynamic fire grate and two level
Fuel that is preheating and catching fire uniformly is taken to main combustion by reciprocal dragging system connection under the drive of the reciprocal dragging system of two level
Area and after-flame, and lime-ash is pushed into and extinguishes area and grey vehicle.
3. biomass fuel environment-protection boiler described in accordance with the claim 1, which is characterized in that the top of three backhaul heat exchanger of shell and tube
Two smoke chambers are arranged in portion, and two smoke chambers, three backhaul heat exchanger packet of shell and tube is arranged in the bottom of three backhaul heat exchanger of shell and tube
Three groups of flue gas tube banks are included, the top of first group of flue gas tube bank is connected to first smoke chamber, and first group of flue gas is restrained and second group
The bottom of flue gas tube bank is connected to second smoke chamber, the top and third of second group of flue gas tube bank and the tube bank of third group flue gas
Smoke chamber is connected to, and the bottom of third group flue gas tube bank is connected to the 4th smoke chamber, the high-temperature flue gas outlet of the 4th smoke chamber
It is connected to smoke evacuation system, forms three backhaul heat exchange structures.
4. biomass fuel environment-protection boiler described in accordance with the claim 3, which is characterized in that the high-temperature flue gas of upper furnace side
Exit, high-temperature flue gas pass through first smoke chamber, first group of flue gas tube bank, second smoke chamber, second group of fume pipe successively
Beam, third smoke chamber, the tube bank of third group flue gas, the 4th smoke chamber, the high-temperature flue gas after three backhauls heat exchange, by discharging fume
System is expelled to chimney.
5. biomass fuel environment-protection boiler described in accordance with the claim 1, which is characterized in that burner hearth and three backhaul of shell and tube heat exchange
The periphery of device is water jacket, and water jacket is located at the setting of the lower part on the outside of three backhaul heat exchanger of shell and tube cold water inlet, and cold water passes through cold
Water inlet enters water jacket, and the water jacket for being located at roof of the furnace is equipped with boiler hot-water outlet, moisturizing and relief valve connection and boiler hot
Water temperature sensor interface communicates place at the top of the water jacket at the top of the water jacket of three backhaul heat exchanger of shell and tube with burner hearth, and setting is changed
Hot device inlet temperature sensing device.
6. biomass fuel environment-protection boiler described in accordance with the claim 1, which is characterized in that outer middle side part of the furnace body close to burner hearth
Burner hearth high-temperature region temperature sensing device and secondary air system, the air outlet of secondary air system, burner hearth high-temperature region temperature sensing are set
The thermometric end of device extends to the high-temperature region in the middle part of burner hearth.
7. biomass fuel environment-protection boiler described in accordance with the claim 1, which is characterized in that parallel oblique above and below the middle part of burner hearth
Diversion pipe is set, and the inclined direction of diversion pipe is the burner hearth sidewall for being fed side, is sloped down to and the side wall opposite side
Side wall on.
8. biomass fuel environment-protection boiler according to claim 7, which is characterized in that set at the top of the diversion pipe of lower part
Set chimney arch plate, chimney arch plate totally nine row.
9. biomass fuel environment-protection boiler described in accordance with the claim 1, which is characterized in that reciprocating fire grate uses heat-resisting cast iron
Reciprocating fire grate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273010.0A CN108571817A (en) | 2018-03-29 | 2018-03-29 | Biomass fuel environment-protection boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273010.0A CN108571817A (en) | 2018-03-29 | 2018-03-29 | Biomass fuel environment-protection boiler |
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| Publication Number | Publication Date |
|---|---|
| CN108571817A true CN108571817A (en) | 2018-09-25 |
Family
ID=63574777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810273010.0A Pending CN108571817A (en) | 2018-03-29 | 2018-03-29 | Biomass fuel environment-protection boiler |
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| Country | Link |
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| CN (1) | CN108571817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984780A (en) * | 2021-03-04 | 2021-06-18 | 东营启辉石油设备有限责任公司 | Heating furnace for petrochemical |
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| US20080156238A1 (en) * | 2002-10-02 | 2008-07-03 | Chengguo Ma | Stoker grates for circulating combustible material |
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