CN106196090A - Siege component parts, fire grate and the manufacture method of siege component parts - Google Patents

Siege component parts, fire grate and the manufacture method of siege component parts Download PDF

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Publication number
CN106196090A
CN106196090A CN201510225026.0A CN201510225026A CN106196090A CN 106196090 A CN106196090 A CN 106196090A CN 201510225026 A CN201510225026 A CN 201510225026A CN 106196090 A CN106196090 A CN 106196090A
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China
Prior art keywords
alloy
siege
layer
component parts
fire grate
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CN201510225026.0A
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Chinese (zh)
Inventor
浦上嘉信
冈武裕
有原元史
田书营
张文渊
王泰山
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Ebara Qingdao Co Ltd
Ebara Environmental Plant Co Ltd
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Ebara Qingdao Co Ltd
Ebara Environmental Plant Co Ltd
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Priority to CN201510225026.0A priority Critical patent/CN106196090A/en
Priority to JP2016022844A priority patent/JP6730814B2/en
Publication of CN106196090A publication Critical patent/CN106196090A/en
Pending legal-status Critical Current

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Abstract

The present invention provides the siege component parts such as a kind of fire grate that can be formed by the material with merchantability.The siege component parts of the present invention has exposed surface in the stove exposed in the stove of incinerator.Siege component parts has and possesses the first alloy-layer and the sheet material of the second alloy-layer.Described first alloy-layer has thermostability, corrosion resistance and/or the mar proof than described second alloy floor height.In described stove, exposed surface is made up of described first alloy-layer of described sheet material.

Description

Siege component parts, fire grate and the manufacture method of siege component parts
Technical field
The present invention relates to siege component parts, fire grate and the manufacture method of siege component parts.
Background technology
At present, nothing is carried out as the harmful substance that the burning disposal along with garbage is produced The incinerator that the offal treatment that evilization processes is arranged, and known stoker formula incinerator. Stoker formula incinerator has the width line along incinerator and consolidating of configuring side by side Determine fire grate row and movable fire grate arranges.Stationary furnace arrangement and movable fire grate arrange the length along incinerator Spend direction (transfer direction of burning disposal object) and be alternately arranged as stepped.
In recent years, substantial amounts of offal treatment is arranged and is arranged boiler and turbogenerator by additional And on the basis of burning disposal function, arrange as recuperation of heat and there is sending out of carrying out generating electricity The function of power plant.Power plant is necessary to ensure that power supply steady in a long-term, it is therefore desirable to not Stop incinerator so that it is can stablize and continuously run chronically.And, see from economy From the point of view of Dian, also require that (renewal cost of consumable part, maintenance costs such as making operation management expense With etc.) it is Min..
The siege component parts such as the fire grate used in incinerator are exposed to about 1200 DEG C Thermal-flame, corrosive gas and fused salt etc. in.When the high temperature of siege component parts is rotten When erosion is gradually serious, it is necessary for stopping burning to regularly replace or keep in repair siege component parts Stove.Therefore, in order to make changing or the cycle long life of maintenance of siege component parts, just need The durability of siege component parts to be improved.Further, in addition it is also necessary to carry out at short notice The replacing of siege component parts or maintenance.
Even if it addition, beyond high temperature corrosion part, the slipper of siege component parts is also Gradually seriously can reach operating limit due to abrasion, thus need to change or maintenance.
Fig. 7 represented an example of the siege component parts of this stoker formula incinerator the most in the past Fire grate.Fig. 7 A represents that what the top perspective view of fire grate, Fig. 7 B represented fire grate looks up solid Figure.As shown in figs. 7 a and 7b, fire grate 9 has upper wall portions 91, is located at upper wall portions 91 Front end antetheca 92, be located at the rear wall parts 93 of the rear end of upper wall portions 91, be located at upper wall portions The recess 94 of the rear side of 91 and multiple fin 95.Fire grate 9 is by heat-resisting cast iron or heat-resisting The foundry goods that the materials such as cast steel are formed, entirety has the shape of complexity.
In illustrated example, between front wall portion 92 and recess 94, it is provided with three fins 95 adds Strong fire grate 9.Delimit the gap (inner space) between upper wall portions 91 and multiple fin 95 Form the path passed through for combustion air.That is, fire grate 9 is shaped generally as the bulk of hollow. It addition, fin 95 has prominent in the side of rear wall 93 close compared with length direction pars intermedia Face 95a.Each prominent face 95a has through hole 95b.These through holes 95b is inserted with Pin 96.
The siege of stoker formula incinerator can be by hundreds of same to thousand of according to the scale of stove The fire grate of one shape is constituted.Owing to needing to reproduce the complicated shape of fire grate, thus the most general It is all to manufacture fire grate by sand casting method.
The method of the durability of the siege component parts such as the fire grate as this casting of improvement, carries Go out and by Ni base self-melting alloy spraying plating or built-up welding, the surface of siege component parts has been changed Property (referring for example to patent documentation 1) and constitute siege component parts heat resisting cast steel in Add the element (such as Mo or Nb) (referring for example to patent documentation 2) of suppression grain boundary corrosion.
Prior art document
Patent documentation 1: Japanese Unexamined Patent Publication 2007-255814 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2007-254842 publication
But, constitute if manufactured the sieges such as the fire grate that formed by heat-resisting alloy steel by casting If parts, then need to entrust to the specialist manufacturers with foundry engieering and Casting Equipment Carry out.It addition, the siege component parts that casting manufactures is owing to being to make through a lot of operations Make, so there is the problem expending manufacturing cost.
It addition, exposed surface is exposed to about 1200 DEG C in the stove of the siege component parts such as fire grate In the high-temperature corrosion environments such as thermal-flame, corrosive gas and fused salt.On the other hand, stove In the stove of bed component parts, non-exposed surface is owing to being cooled down by primary air, so generally tieing up Hold at about 300 DEG C, even if maximum is also limited in less than 450 DEG C.It is therefore preferable that be only stove In the stove of bed component parts, exposed surface is formed by heat-proof corrosion-resistant alloy.But, if by casting If making one-body molded siege component parts, owing to being not exposed in high-temperature corrosion environment In stove, non-exposed surface is also formed by heat-proof corrosion-resistant alloy, thus uneconomical.
Further, since casting needs the thickness making product overall as much as possible uniformly and to need tool There is pattern draft, so relative to product strength, foundry goods has beyond the thickness needed.Cause This, in the case of manufacturing siege component parts by casting, due to a large amount of high price of needs Material and uneconomical.
In the case of manufacturing siege component parts by casting, it is also contemplated that by with bag High price heat-proof corrosion-resistant alloy containing grain boundary corrosion suppression element improves siege structure as mother metal Become the durability of parts, but, also would have to use the alloy identical with mother metal alloy Form non-exposed surface in the stove without improving durability.Even if it addition, siege component parts A part is burned or thinning, due to cannot local route repair, so also wouling have to siege Component parts is whole discarded or changes, and is also uneconomic.
In order to improve this problem, as it has been described above, by the needed position spraying plating of foundry goods or heap Weld the high alloy of durability and carry out surface modification.But, when implementing spraying plating or built-up welding, Easily rupture on mother metal due to thermal shock.In order to prevent this situation, it is desirable to right Mother metal carries out the heat management that the pre-heat treatment, after-baking etc. are correct.Due in burning facility It is extremely difficult for carrying out these heat managements, so siege constituting portion cannot be repaired easily Part.
When manufacturing foundry goods, as economic casting, generally carried out by wooden mold Sand casting.But owing to casting dimension accuracy is not as panel beating product, so in order to reach Desired size precision is accomplished by carrying out machining.Such as, fire grate width is 150mm's The design precision prescribed of fire grate is ± below 0.3mm, but the dimensional accuracy of casting be ± About 0.5mm.
In the siege component parts such as fire grate, normally used high chromium low nickel heat resisting cast steel (is equivalent to The material of JIS SCH2) bending strength and resistance to impact and rolled steel for general structure etc. Compare relatively low.Therefore, the incombustible etc. worried in garbage in incinerator operates is nipped Between siege component parts, there is fracture distress accident or siege constituting portion is being installed Accidental damage during part.Thus, it is desirable to pay close attention to the operation to siege component parts.
The reduced down in thickness amount caused because of skimming wear of the siege component parts such as fire grate is also durable One essential elements of evaluation of property.In order to reduce wear extent, the surface improving siege component parts is hard Degree is effective ways.Specifically, the phosphorus content increasing parts mother metal is to reduce wear extent A method.But, if the phosphorus content of parts mother metal exceed a certain amount of if, then have Parts mother metal becomes fragile and ruptures or cause grain boundary corrosion because of the generation of chromium carbide Shortcoming.Therefore, carbon content rate in practical use is with about 1.5% as the upper limit.Additionally, in conduct One example and in the case of the carbon content rate of heat resisting cast steel (JIS SCH2) is set to 1.5%, it is possible to Obtaining Brinell hardness is the case hardness of about HBW400.This is heat resisting cast steel (JIS SCH2) about 2 times of the hardness obtained when carbon content rate is 0.4%.
Summary of the invention
The problems referred to above that the present invention exists in view of prior art, to provide the one can be by having The siege component parts such as the fire grate that the material of merchantability (marketability) is formed are problem.
It addition, another problem of the present invention is, it is provided that a kind of weldability and machining property are excellent The siege component parts such as different fire grate.
It addition, another problem of the present invention is, easily improve the sieges such as fire grate with low cost The thermostability of component parts, corrosion resistance and/or mar proof, and realize height and improve effect (property Energy price ratio).
It addition, another problem of the present invention is stably to guarantee the siege component parts such as fire grate Mechanical strength and Product Precision.
It addition, another problem of the present invention is, it is provided that a kind of stove that can carry out local route repair The siege component parts such as row.
It addition, be as noted previously, as waste treating device as generating equipment function, It requires operating steady in a long-term.Therefore, seek to do one's utmost to reduce the chance that incinerator stops, And implement periodic inspection and maintenance at short notice.In consideration of it, another problem of the present invention is, By improving the corrosion resistance of siege component parts, mar proof, the Mechanical Structure Strengths such as fire grate Deng durability, reduce the accident that caused by siege component parts and easily carry out repair and maintenance.
The present invention proposes to solve at least one problem above-mentioned.
A mode according to the present invention, it is provided that a kind of siege component parts.This siege is constituted Parts have exposed surface in the stove exposed in the stove of incinerator, wherein, have and possess first Alloy-layer and the sheet material of the second alloy-layer, described first alloy-layer has than described second alloy The thermostability of floor height, corrosion resistance and/or mar proof, in described stove, exposed surface is by described plate Described first alloy-layer of material is constituted.
According to the another way of the present invention, in above-mentioned siege component parts, described second closes Layer gold has the weldability than described first alloy floor height, and described second alloy-layer is by welding And be bonded with each other.
Another way according to the present invention, it is provided that a kind of siege component parts.This siege is constituted Parts have exposed surface in the stove exposed in the stove of incinerator, wherein, have and possess first Alloy-layer and the sheet material of the second alloy-layer and support the supporting mass of described sheet material, described One alloy-layer has than the thermostability of described second alloy floor height, corrosion resistance and/or wear-resistant Property, to make in the way of in described stove, exposed surface is made up of described first alloy-layer of described sheet material Described sheet material is made to engage with described supporting mass.
According to the another way of the present invention, in above-mentioned siege component parts, described second closes Layer gold has the weldability than described first alloy floor height, described second alloy of described sheet material Layer is engaged with described supporting mass by welding.
Another way according to the present invention, it is provided that a kind of fire grate.This fire grate is used in incinerator Siege, have: upper wall portions, be located at the front wall portion of the front end of described upper wall portions and from institute State the antetheca bottom that the lower end of front wall portion extends, described upper wall portions, described front wall portion and described Antetheca bottom is made up of the sheet material with the first alloy-layer and the second alloy-layer, and described first closes Layer gold has thermostability, corrosion resistance and/or the mar proof than described second alloy floor height, Described first alloy-layer of described sheet material exposes in described incinerator.
Another way according to the present invention, it is provided that the manufacture method of a kind of siege component parts. This manufacture method has described in the sheet material with the first alloy-layer and the second alloy-layer Two alloy-layers are welded on the operation on supporting mass, and wherein, described second alloy-layer has than institute State the weldability of the first alloy floor height.
Circulate extensively on market a kind of on steel plate for welding surface built-up welding be welded with possess heat-resisting The double-deck sheet material of the alloy of property, corrosion resistance and/or mar proof is (the most double Laminate material).Utilize this double sheets, by least having thermostability, corrosion resistance and wear-resisting The alloy-layer (the first alloy-layer) of arbitrary characteristic in damage property and expose in being formed at incinerator Face (exposed surface in stove), and form nothing by welding steel sheet material layers (the second alloy-layer) The part (non-exposed surface in stove) of durability need to be improved.Thereby, it is possible to by welding system Make the identical structure of the siege component parts such as the fire grate that has and manufactured and shape by casting Siege component parts.Owing to alloy material can also be selected, so energy according to using environments to Enough realize the improvement of durability and the reduction of manufacturing cost simultaneously.
By the material suitable according to the environmental selection using siege component parts, it is possible at warp Siege component parts is advantageously formed in Ji.Specifically, as without improving corrosion proof stove The formation material of interior non-exposed surface, it is possible to select the general structure rolled steel of welding property excellent Plate;Formation material as the high main combustion section of fire grate temperature, it is possible to select corrosion resistant plate.
For assembling the fire grate framework of the siege component parts such as fire grate by general structure rolled steel Materials etc. have the material of merchantability and constitute, and can be assembled by welding, the most permissible Manufactured by general panel beating factory.Panel beating technology is to have widely in industrial quarters Actual application and stable technology.As long as panel beating technology has possesses cutting machine, welding Machine and welding material, it is not necessary to the advantage that special installation just can manufacture part.If by same metal plate If metalworking factory manufactures siege component parts and fire grate framework, it is possible to cost is greatly reduced. If if fire grate, in the tentative calculation of the rate of cost reduction, according to base material and weld overlay materials Combination, it is possible in basic buying price by cost reduce by 20% to 40%.Fire grate by In the case of double sheets is constituted, it is possible to cutting thickness reduction portion local when keeping in repair fire grate Ground carries out new material welding, it is contemplated that realize shortening and the cost cutting of maintenance time.Its knot Fruit is, moreover it is possible to realizes the regeneration of Precious Metals Resources, and is avoided that the waste for no reason of resource.
Steel plate for welding is better than heat resisting cast steel in bending strength and resistance to impact.Therefore, exist In the case of siege component parts is made up of double sheets, it is possible to obtain stable mechanical strength, And prevent from casting the shortcoming i.e. fracture distress accident of fire grate.
First alloy-layer of double sheets i.e. built-up welding welding alloy has the durability improving fire grate Necessary thermostability, corrosion resistance and/or mar proof.Close may be used for built-up welding welding In main material that is 5 of gold~6C-28~32Cr-2~3Nb-3~5W-5~6C alloy, it is heat-resisting Property, corrosion resistance be heat resisting cast steel (JIS SCH2) equal more than, there is HBW650~700 Hardness (mar proof).This hardness is about 3 times of heat resisting cast steel (JIS SCH2). If heat resisting cast steel high rigidity then resistance to impact reduces, therefore it some times happens that rupture.But, In the siege component parts with double sheets, owing to the second alloy-layer is not heat resisting cast steel But steel material for welding, it is possible to obtain the most stable mechanical strength, and Prevent the generation of fracture distress accident.
As other alloys of double sheets, have equal with heat resisting cast steel (JIS SCH2) Thermostability and corrosion resistance and there are 2~3.5C-18~the 30Cr conjunctions of hardness of HBW500~600 Gold also has merchantability.Additionally, the hardness of this alloy is heat resisting cast steel (JIS SCH2) About 2 times.
In the fire grate being made up of double sheets, from the double sheets of market sale to fire grate Component parts carries out blank stock layout, then by cut, plasma cutting or gas Cutting carrys out cutting component parts.The fire grate that cutting width is 150mm is being carried out by cut Component parts in the case of, machining accuracy is able to ensure that as ± 0.1~0.3mm, and need not Machining.Owing to the machining accuracy of plasma cutting is ± about 0.5mm, so in order to Guarantee required Product Precision, need the component parts that cutting is gone out to carry out the grinding of local Processing.But, the second layer of double sheets is formed by steel material for welding, is therefore adding Heat resisting cast steel it is better than in work.
Accompanying drawing explanation
Fig. 1 is that the stoker formula representing the siege component parts using present embodiment is burned The overall diagram of the siege part of stove.
Fig. 2 A is the top perspective view of the fire grate of the siege component parts as present embodiment.
Fig. 2 B is the face upwarding stereogram of the fire grate of the siege component parts as present embodiment.
Fig. 3 is the component parts of the fire grate of the siege component parts being denoted as present embodiment Figure.
Fig. 4 is the partial sectional view of double sheets.
Fig. 5 is to represent fixing in the siege part of the stoker formula incinerator shown in Fig. 1 Fire grate, movable fire grate and the enlarged schematic sectional view of wing furnace row.
Fig. 6 A is the front view of the wing furnace row of the siege component parts as present embodiment.
Fig. 6 B is the sectional view of the wing furnace row in the cross section XX shown in Fig. 6 A.
Fig. 7 A is the top perspective view of conventional fire grate.
Fig. 7 B is the face upwarding stereogram of conventional fire grate.
Description of reference numerals
1 stoker formula incinerator
6 fire grates
10 double sheets
11 siege portions
13,14 wing furnace row
13-5 fire grate framework support
13-6,13-7 rib
61 upper wall portions
62 front wall portions
63 antetheca bottoms
64 rear wall parts
65 fins
101 first alloy-layers
102 second alloy-layers
Detailed description of the invention
Hereinafter, referring to the drawings embodiments of the present invention are illustrated.In following description In accompanying drawing, give identical reference to same or equivalent element and omit repetition Explanation.
Fig. 1 is to represent that the stoker formula using the siege component parts having present embodiment is burnt Burn the overall diagram of the siege part of stove.As it can be seen, stoker formula incinerator 1 includes making For entirety, there is the siege portion 11 of step structure.Siege portion 11 is arranged with multilamellar fire grate 2. Fire grate 2 has arid region 2a, the first burning along the moving direction of burning disposal object Region 2b, the second combustion zone 2c and after-combustion region 2d.
Siege portion 11 has multiple wing furnace row 13 and 14 (in figure in the both sides of width Illustrate only side), and at width central part, there is separator 3.Thus, motor-driven stove Row's formula incinerator 1 can reduce the skimming wear of the fire grate in the operating of incinerator.Additionally, The concrete structure of wing furnace row 13 and 14 the most by disclosed in Japanese Patent No. 3871484, The concrete structure of separator 3 is the most by disclosed in Japanese Patent No. 5087221.At Fig. 1 In shown example, stoker formula incinerator 1 is provided with a separator 3, thus will Fire grate 2 has been divided into left and right two row.But it is not limited to this, it is also possible to burn in stoker formula Burn and stove 1 arranges multiple separator 3 in the width direction, thus fire grate 2 is divided into left and right three Row or left and right four row etc..
It addition, stoker formula incinerator 1 has air channel 12, it is for siege portion 11 The arid region 2a of fire grate 2, the first combustion zone 2b, the second combustion zone 2c and after-burning Burn region 2d and carry combustion air respectively.
Fire grate 2 have along siege portion 11 width arrange multiple fixed grates and with The multiple movable fire grate arranged in the width direction sample.The row of fixed grate and movable fire grate Arrange and be alternately arranged along the transfer direction of the burning disposal object in siege portion 11 is stepped.
Fig. 2 A is the top perspective view of the fire grate of the siege component parts as present embodiment, Fig. 2 B is the face upwarding stereogram of this fire grate.Fire grate shown in Fig. 2 A and Fig. 2 B is pie graph 1 The fixed grate of shown fire grate 2 and a part for movable fire grate.
As shown in Figure 2 A and 2 B, fire grate 6 has upper wall portions 61, is located at upper wall portions 61 Front end front wall portion 62 and from the lower end of front wall portion 62 extend antetheca bottom 63.Enter One step ground, fire grate 6 has the rear end being located at upper wall portions 61 as the supporting mass of fire grate 6 Rear wall parts 64 and multiple fins 65 of the double cooling of reinforcement.Fin 65 with rear wall parts 64 There is in close proximity recess 65c.In illustrated example, in front wall portion 62 and rear wall parts 64 Between be provided with three fins 65.Additionally, the quantity of fin 65 is not limited to three.
The gap (inner space) delimited by upper wall portions 61 and multiple fin 65 is formed for helping The path that combustion air passes through.That is, fire grate 6 is shaped generally as the bulk of hollow.It addition, wing Sheet 65 has prominent face in the side of rear wall parts 64 close compared with length direction pars intermedia 65a.Each prominent face 65a has through hole 65b.These through holes 65b is inserted with pin 66.
Here, the fire grate 6 as the siege component parts of present embodiment has by the first conjunction The double-deck sheet material (hereinafter referred to as double sheets) that layer gold and the second alloy-layer are constituted. First alloy-layer is the alloy-layer with high thermostability, corrosion resistance and/or mar proof, Second alloy-layer is the alloy-layer with high weldability.So that the first alloy-layer of this sheet material exists The mode exposed in the stove of the stoker formula incinerator 1 shown in Fig. 1 constitutes fire grate 6.Change speech It, the face (exposed surface in stove) that fire grate 6 exposes in the stove of stoker formula incinerator 1 Constituted by the first alloy-layer of double-deck sheet material.
Fig. 3 is the constituting portion of the fire grate 6 of the siege component parts being denoted as present embodiment The figure of part.The upper wall portions 61 of fire grate 6, front wall portion 62 and antetheca bottom 63 have dew in stove Appear.Therefore, in the present embodiment, the upper wall portions 61 of fire grate 6, front wall portion 62 and front Wall bottom 63 is made up of above-mentioned double sheets.It addition, the upper wall portions 61 of fire grate 6, front wall portion 62 and antetheca bottom 63 stove in exposed surface be made up of the first alloy-layer of double sheets.Upper wall Portion 61, front wall portion 62 and antetheca bottom 63 not at the stove of stoker formula incinerator 1 The face (non-exposed surface in stove) inside exposed is made up of the second alloy-layer of double sheets.It addition, Rear wall parts 64 and fin 65 as supporting mass are such as formed by steel material for welding.
As the first alloy-layer, it is possible to use such as 5~6C-28~32Cr-2~3Nb-3~5W-5~6C Alloy or 2~3.5C-18~30Cr alloys etc..It addition, the second alloy-layer can be according to use The temperature of the environment of fire grate 6, from having the general structure rolled plate of merchantability, welding The material of the welding property excellents such as structure rolled plate, rolling corrosion resistant plate is selected.Additionally, As long as the first alloy-layer has than the thermostability of the second alloy floor height, corrosion resistance and/or resistance to The alloy-layer of abrasiveness, as long as the second alloy-layer has the weldering than the first alloy floor height The alloy-layer of connecing property.
Fig. 4 is the partial sectional view of double sheets.In double sheets 10, at the second alloy-layer Built-up welding welding thermostability, corrosion resistance and/or the alloy of excellent in wear resistance on 102, thus It is formed with the first alloy-layer 101.The thickness 101a of the first alloy-layer 101 be of about 6mm with Upper and below 10mm, the thickness 102a of the second alloy-layer 102 are of about 12mm.As The thickness 101a of the first alloy-layer 101, such as, can select 6mm, 8mm or 10mm etc.. Additionally, the first alloy-layer 101 be not limited to built-up welding welding, it is also possible to engaged by diffusion and Engage with the second alloy-layer 102.
Fig. 5 is to represent fixing in the siege part of the stoker formula incinerator shown in Fig. 1 Fire grate, movable fire grate and the enlarged schematic sectional view of wing furnace row.As it can be seen, by many The stationary furnace that individual fixed grate is constituted arranges 4A and the movable stove being made up of multiple movable fire grates Arrangement 4B is respectively provided with the fire grate 6 shown in Fig. 2 A and Fig. 2 B.Additionally, in illustrated example, Show a fixed grate and a movable fire grate.
The fire grate 6 of stationary furnace arrangement 4A and movable fire grate row 4B is respectively via grate supporting beam 8 upper ends being fixed on fixed frame 5A and movable framework 5B.Movable fire grate row 4B is in order to move Send burning disposal object garbage, and sliding before and after contacting on one side with stationary furnace arrangement 4A Dynamic.
Gap uniformity ground between the adjacent fire grate 6 of each row keeps, and does one's utmost to prevent combustion-supporting sky Gas passes from this gap and dust falls this gap.Arranged by the stationary furnace being alternately arranged 4A and movable fire grate row 4B, it is possible to carry out effective burn processing object garbage movement, Reversion and stirring.
Stationary furnace arrangement 4A and movable fire grate row 4B has the upper surface slide with fire grate 6 Scraper plate 7.Scraper plate 7 is entrenched on the teat 81 of the upper surface front end being located at grate supporting beam 8. It addition, for keep fire grate 6 recess 65c maintaining part 82 and for fire grate 6 The engaging recessed part 83 with hook section of pin 66 engaging is integrally formed with grate supporting beam 8. Engaging recessed part 83 is formed at the rear of teat 81.Additionally, although not shown but it also may no Stationary furnace arrangement 4A and movable fire grate row 4B arranges scraper plate 7, and with fire grate 6 before The mode structure that wall bottom 63 directly contacts with the upper wall portions 61 of the fire grate 6 of adjacent column and slides Become.
Maintaining part 82 has: the front side teat 82a being located on the upper surface of grate supporting beam 8; It is located at the rear side teat 82b on rear side of projection 82a of front side;It is located at the spacer portion between two teats Part 82c;And the fixture 82d such as the bolt that distance member 82c is fixed between two teats.
Fire grate 6 is positioned on grate supporting beam 8, and the rear wall parts 64 of fire grate 6 is arranged in interval Between parts 82c and front side teat 82a.Fixture 82d by be formed at rear side teat Through hole on 82b screws togather and fixes distance member 82c, thus by the rear wall parts 64 of fire grate 6 It is clipped between distance member 82c and front side teat 82a.Thus, fire grate 6 is maintained at rule Location is put.
It addition, stationary furnace arrangement 4A and the both sides of movable fire grate row 4B, wing furnace row 13 And 14 be fixed on fire grate framework (not shown).Additionally, illustrate only one in illustrated example The wing furnace row 13 and 14 of side.Wing furnace row 13 and 14 by with the contacts side surfaces of fire grate 6 in the way of Constitute, and prevent garbage etc. from falling between fire grate 6 and wing furnace row 13 and 14.
Additionally, the fire grate 6 being made up of double sheets shown in Fig. 2 have with shown in Fig. 7 Conventional fire grate 9 same shape manufactured by casting.Therefore, shown in Fig. 2 Fire grate 9 shown in fire grate 6 and Fig. 7 can be installed to the stove shown in Fig. 5 in the same way On row's backbar 8.In other words, the fire grate 6 shown in Fig. 2 has with the fire grate 9 shown in Fig. 7 There is interchangeability.
Then, the manufacture method of the fire grate 6 being made up of double sheets is illustrated.First, From double sheets to the component parts of the fire grate 6 shown in Fig. 3 has exposed surface in stove Upper wall portions 61, front wall portion 62 and antetheca bottom 63 carry out blank stock layout, and carry out cutting and add Work.The fin 65 and the rear wall parts 64 that do not have exposed surface in stove carry out blank from steel material for welding Stock layout also carries out cutting processing.In the situation using CUT to carry out cutting processing Under, as required, in order to meet the requirement of parts precision also to each constituting portion under being cut Part is ground processing etc..It addition, by advance the weld part of each component parts being carried out slope Mouth processing, it can be ensured that weld strength.
Though the welding sequence of each component parts is not particularly limited, but need to be suitable for guaranteeing product The order of precision welds each component parts.Additionally, according to the first alloy-layer 101 and second The material of alloy-layer 102, the welding material that selected weldability is high.After having welded, butt welding Meet portion etc. and be ground processing, revise the outward appearance of fire grate, size.
More specifically, under the upper wall portions 61 of the fire grate 6 shown in Fig. 3, front wall portion 62 and antetheca Second alloy-layer in portion 63 is welded in supporting mass i.e. fin 65 or the rear wall parts 64 of fire grate 6. It addition, upper wall portions 61, front wall portion 62 and antetheca bottom 63 are via the second alloy-layer 102 phase Welding mutually.In the fire grate 6 of present embodiment, due to than the first alloy-layer 101 weldability The second high alloy-layer 102 is welded on fin 65, it is possible to guarantee weld strength.Separately Outward, in the fire grate 6 of present embodiment, due in stove exposed surface by the first alloy-layer 101 Formed, so also ensuring that the thermostability of fire grate 6, corrosion resistance and/or mar proof.
Then, the wing furnace shown in Fig. 5 is arranged 13 to be specifically described.Additionally, wing furnace row 14 Have and arrange 13 identical structures with wing furnace, therefore omit the explanation of wing furnace row 14.Wing furnace is arranged 13 is an example of the siege component parts of present embodiment, by with the doubling plate constituting fire grate 6 The material that material is identical is constituted.So that the first alloy-layer 101 (with reference to Fig. 4) of this double sheets The mode exposed in the stove of the stoker formula incinerator 1 shown in Fig. 1 constitutes wing furnace row 13. In other words, in the stove of wing furnace row 13, exposed surface is made up of the first alloy-layer 101 of double sheets.
Fig. 6 A is the front view of the wing furnace row 13 of the siege component parts as present embodiment, Fig. 6 B is the sectional view of the wing furnace row 13 in the cross section XX shown in Fig. 6 A.Such as Fig. 6 A and Shown in Fig. 6 B, wing furnace row 13 has upper wall portions 13-1, is located at the leading section of upper wall portions 13-1 Front wall portion 13-2, the antetheca bottom 13-3 being located at the lower end of front wall portion 13-2 and side of sidewall portion 13-4.It addition, wing furnace row 13 has the supporting of fire grate framework as the supporting mass of wing furnace row 13 Portion 13-5 and rib 13-6 and 13-7.
Upper wall portions 13-1, front wall portion 13-2, antetheca bottom 13-3 and the sidewall of wing furnace row 13 Portion 13-4 has exposed surface in stove.Therefore, in the present embodiment, upper wall portions 13-1, front Wall portion 13-2, antetheca bottom 13-3 and side of sidewall portion 13-4 are formed by above-mentioned double sheets.Separately Outward, upper wall portions 13-1, front wall portion 13-2, antetheca bottom 13-3 and the stove of side of sidewall portion 13-4 Interior exposed surface is made up of the first alloy-layer 101 (with reference to Fig. 4) of double sheets.Upper wall portions 13-1, In the stove of front wall portion 13-2, antetheca bottom 13-3 and side of sidewall portion 13-4, non-exposed surface is by doubling plate Second alloy-layer 102 (with reference to Fig. 4) of material is constituted.It addition, as the fire grate frame of supporting mass Frame support 13-5 and rib 13-6 and 13-7 is formed by steel plate for welding.
The manufacture method of the wing furnace row 13 being made up of double sheets is illustrated.First, from Double sheets to shown in Fig. 6 A and Fig. 6 B wing furnace arrange 13 component parts in there is stove Upper wall portions 13-1 of interior exposed surface, front wall portion 13-2, antetheca bottom 13-3 and side of sidewall portion 13-4 Carry out blank stock layout and carry out cutting processing.Do not have exposed surface in stove rib 13-6 and 13-7 and Fire grate framework support 13-5 carries out blank stock layout from steel material for welding and carries out cutting processing. In the case of using CUT to carry out cutting processing, in order to be suitable for required portion The precision of part, is ground processing etc. to each component parts under being cut as required.Separately Outward, by advance the weld part of each component parts being carried out retaining wall on slope, it can be ensured that welding Intensity.
Though the welding sequence of each component parts is not particularly limited, but need to be suitable for guaranteeing product The order of precision welds each component parts.Additionally, according to the first alloy-layer 101 and second The material of alloy-layer 102 (with reference to Fig. 4), the welding material that selected weldability is high.Weld Cheng Hou, is ground processing, revises the outward appearance of fire grate, size weld part etc..
More specifically, upper wall portions 13-1 of wing furnace row 13 shown in Fig. 6 A and Fig. 6 B, antetheca Second alloy-layer 102 (with reference to Fig. 4) of bottom 13-3 and side of sidewall portion 13-4 is welded on wing furnace Arrange on supporting mass i.e. rib 13-6, rib 13-7 and/or the fire grate framework support 13-5 of 13.Separately Outward, upper wall portions 13-1, front wall portion 13-2, antetheca bottom 13-3 and side of sidewall portion 13-4 via Second alloy-layer 102 is welded to each other.Wing furnace in present embodiment is arranged in 13, due to ratio the The second alloy-layer 102 (with reference to Fig. 4) that one alloy-layer 101 weldability is high be welded on rib 13-6, On rib 13-7 and/or fire grate framework support 13-5, it is possible to guarantee weld strength.Separately Outward, the wing furnace in present embodiment is arranged in 13, due in stove exposed surface by the first alloy-layer 101 Formed, so also ensuring that thermostability, corrosion resistance and/or the mar proof of wing furnace row 13.
As described above, according to the siege component parts of present embodiment (fire grate 6 and Wing furnace row 13,14), it is possible to by having the of thermostability, corrosion resistance and/or mar proof One alloy-layer 101 only forms exposed surface in the stove contacted with high-temperature corrosion environment, therefore, with Situation about being manufactured by casting is compared, it is possible to reduce manufacturing cost.
It addition, according to the siege component parts of present embodiment, it is possible to according to siege constituting portion The use environment of part, selects material and the material of the second alloy-layer 102 of the first alloy-layer 101 Matter.
It addition, according to the siege component parts of present embodiment, high owing to being use merchantability Double sheets manufacture siege component parts by welding, so such special without casting Different technology, special installation, it is possible to manufactured siege component parts by general panel beating factory.
It addition, according to the siege component parts of present embodiment, though siege component parts office Portion is burned and thinning, also can carry out local route repair in use equipment.Therefore, it is possible to contracting The short maintenance period, and the discarded amount of metals resources can be reduced.
It addition, according to the siege component parts of present embodiment, owing to base material is to be used by welding The second alloy-layer that steel layer etc. are constituted, it is possible to do not affecting hardfacing alloy layer (first Alloy-layer) mechanical strength in the case of, the engineering properties making with bending, impact etc. is relative Significantly improve.
It addition, according to the siege component parts of present embodiment, for wanting as generating equipment Rectificate phase steady running waste treating device stoker formula incinerator in siege structure Become the durability such as the thermostability of parts, corrosion resistance, mar proof and/or mechanical strength, energy Enough improve with low cost.And then, it is possible to reduce the accident caused by siege component parts, And carry out repair and maintenance easily.
It is explained above embodiments of the present invention, but the present invention is not limited to above-mentioned enforcement Mode, it is possible at the model of the technological thought described in claims and description, accompanying drawing Various deformation is carried out in enclosing.Even additionally, being the most directly documented in description and accompanying drawing Any shape and material, as long as playing the effect of the present application, effect, be at this In the range of the technological thought of application invention.

Claims (6)

1. a siege component parts, has exposed surface in the stove exposed in the stove of incinerator, It is characterized in that,
Also have and possess the first alloy-layer and the sheet material of the second alloy-layer,
Described first alloy-layer have the thermostability than described second alloy floor height, corrosion resistance and / or mar proof,
In described stove, exposed surface is made up of described first alloy-layer of described sheet material.
Siege component parts the most according to claim 1, it is characterised in that described Two alloy-layers have the weldability than described first alloy floor height,
Described second alloy-layer is bonded with each other by welding.
3. a siege component parts, has exposed surface in the stove exposed in the stove of incinerator, It is characterized in that,
Also have: possess the first alloy-layer and the sheet material of the second alloy-layer and support described plate The supporting mass of material,
Described first alloy-layer have the thermostability than described second alloy floor height, corrosion resistance and / or mar proof,
To make in the way of in described stove, exposed surface is made up of described first alloy-layer of described sheet material Described sheet material is made to engage with described supporting mass.
Siege component parts the most according to claim 3, it is characterised in that described Two alloy-layers have the weldability than described first alloy floor height,
Described second alloy-layer of described sheet material is engaged with described supporting mass by welding.
5. a fire grate, is used in the siege of incinerator, it is characterised in that have:
Upper wall portions;
It is located at the front wall portion of the front end of described upper wall portions;With
The antetheca bottom extended from the lower end of described front wall portion,
Described upper wall portions, described front wall portion and described antetheca bottom are by having the first alloy-layer and The sheet material of two alloy-layers is constituted,
Described first alloy-layer have the thermostability than described second alloy floor height, corrosion resistance and / or mar proof,
Described first alloy-layer of described sheet material exposes in described incinerator.
6. a manufacture method for siege component parts, described siege component parts is used in and burns Burning the siege of stove, the manufacture method of described siege component parts is characterised by,
There is described second alloy-layer of sheet material by having the first alloy-layer and the second alloy-layer The operation being welded on supporting mass,
Wherein, described second alloy-layer has the weldability than described first alloy floor height.
CN201510225026.0A 2015-05-05 2015-05-05 Siege component parts, fire grate and the manufacture method of siege component parts Pending CN106196090A (en)

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CN107543170A (en) * 2016-06-24 2018-01-05 荏原环境工程株式会社 Fire grate assembly
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