CN106287762A - Fire grate and the manufacture method of fire grate - Google Patents
Fire grate and the manufacture method of fire grate Download PDFInfo
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- CN106287762A CN106287762A CN201510303070.9A CN201510303070A CN106287762A CN 106287762 A CN106287762 A CN 106287762A CN 201510303070 A CN201510303070 A CN 201510303070A CN 106287762 A CN106287762 A CN 106287762A
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- fire grate
- bolt
- alloy
- incinerator
- grate
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- 238000000034 method Methods 0.000 title claims abstract description 14
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010931 gold Substances 0.000 claims abstract description 15
- 229910052737 gold Inorganic materials 0.000 claims abstract description 15
- 238000005260 corrosion Methods 0.000 claims description 27
- 230000007797 corrosion Effects 0.000 claims description 27
- 238000005266 casting Methods 0.000 abstract description 22
- 239000000463 material Substances 0.000 abstract description 18
- 239000010410 layer Substances 0.000 description 17
- 229910045601 alloy Inorganic materials 0.000 description 12
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- 210000002445 nipple Anatomy 0.000 description 9
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- 229910001208 Crucible steel Inorganic materials 0.000 description 5
- 238000010009 beating Methods 0.000 description 5
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- 238000005452 bending Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
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- 238000007528 sand casting Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 101100073357 Streptomyces halstedii sch2 gene Proteins 0.000 description 1
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Landscapes
- Incineration Of Waste (AREA)
Abstract
The present invention provides the manufacture method of a kind of fire grate and fire grate, this fire grate by have merchantability material formed, or by have uniform thickness and have high casting accuracy simple shape parts formed.The fire grate of the present invention uses in incinerator, has the 1st alloy steel products and the 2-in-1 gold steel different from above-mentioned 1st alloy steel products.
Description
Technical field
The present invention relates to the manufacture method of fire grate and fire grate.
Background technology
At present, carry out harmless as the harmful substance that the burning disposal along with garbage is produced
The incinerator of the waste treatment facilities that change processes, and known stoker formula incinerator.Motor-driven
Grate type incinerator has the stationary furnace configured side by side along the width line of incinerator
Arrangement and movable fire grate arrange.Stationary furnace arrangement and movable fire grate arrange the length direction along incinerator
(transfer direction of burning disposal object) and be alternately arranged as stepped.
In recent years, substantial amounts of waste treatment facilities boiler and turbogenerator are set by additional and
On the basis of burning disposal function, there is as recuperation of heat facility the power plant carrying out generating electricity
Function.Power plant is necessary to ensure that power supply steady in a long-term, it is therefore desirable to do not stop burning
Burn stove so that it is can stablize and continuously run chronically.And, from the point of view of economical point,
Also require that making (renewal cost of consumable part, upkeep costs etc.) such as operation management expenses is
Little limit.
The fire grate used in incinerator is exposed to thermal-flame, the corrosion of about 1200 DEG C
In property gas and fused salt etc..When the high temperature corrosion of fire grate is gradually serious, in order to regularly replace
Or maintenance fire grate is necessary for stopping incinerator.Therefore, in order to make changing or the week of maintenance of fire grate
Phase long life, it is necessary to improve the durability of fire grate.Further, in addition it is also necessary at short notice
Carry out replacing or the maintenance of fire grate.
Even if it addition, beyond high temperature corrosion part, the slipper of fire grate is also due to wear and tear
Gradually seriously reach operating limit, thus need to change or maintenance.
Fig. 5 A and Fig. 5 B represents the conventional fire grate of this stoker formula incinerator.Figure
5A represents that what the top perspective view of conventional fire grate, Fig. 5 B represented conventional fire grate looks up solid
Figure.As shown in Figure 5A and 5B, 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 91
The recess 94 of rear side and multiple fin 95.Fire grate 9 is by heat-resisting cast iron or resistance to hot-cast
The foundry goods that the materials such as steel are formed, entirety has the shape of complexity.
In illustrated example, between front wall portion 92 and recess 94, it is provided with 3 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.Separately
Outward, fin 95 has prominent face in the side of rear wall 93 close compared with length direction pars intermedia
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, so the most all
It is to manufacture fire grate by sand casting method.
Method as the durability of the fire grate improving this casting, it is proposed that by Ni base certainly
Fusibleness alloy spraying plating or built-up welding are (civilian referring for example to patent to the scheme of the modifying surface of fire grate
Offer 1) and in the heat resisting cast steel constituting fire grate, add the element (example suppressing grain boundary corrosion
Such as Mo or Nb) scheme (referring for example to patent documentation 2).
Prior art document
Patent documentation 1: Japanese Unexamined Patent Publication 2007-255814 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2007-254842 publication
Generally, fire grate is formed by heat-resisting alloy steel, and it constructs complexity.It addition, fire grate makes mostly
It is used in incinerator, it is therefore desirable to produce in a large number.Thus, fire grate is in the past by casting system
Make.But, in the case of manufacturing, by casting, the fire grate formed by heat-resisting alloy steel, for
Guarantee dimensional accuracy and require high foundry engieering.It addition, casting manufacture fire grate due to be through
Cross a lot of operation and manufacture, so there is the problem expending manufacturing cost.
It addition, the face (exposed surface in stove) exposed in incinerator of fire grate is exposed to 1200 DEG C
In the high-temperature corrosion environments such as thermal-flame, corrosive gas and the fused salt of left and right.On the other hand,
The face (non-exposed surface in stove) do not exposed in incinerator of fire grate is due to by the most combustion-supporting sky
Air cooling, so being usually maintained in about 300 DEG C, even if it is less than 450 DEG C that maximum also manages.
It is therefore preferable that be that exposed surface is formed by heat-and corrosion-resistant alloy in the stove of only fire grate.But,
If if carrying out one-body molded siege component parts by casting, owing to being not exposed to high temperature corrosion ring
In stove in border, non-exposed surface is also formed by heat-and corrosion-resistant alloy, thus uneconomical.
Further, since casting needs the thickness making product overall as much as possible uniformly and needs have
Pattern draft, so relative to product strength, foundry goods has beyond the thickness needed.Therefore,
In the case of manufacturing fire grate by casting, due to need a large amount of high price material and without
Ji.
In the case of manufacturing fire grate by casting, it is also contemplated that by comprise grain boundary corrosion
The high price heat-and corrosion-resistant alloy of suppression element improves the durability of fire grate as mother metal, but
It is also to would have to use the alloy identical with mother metal alloy to be formed without improving durability
Non-exposed surface in stove.Even if it addition, a part for fire grate is burned or thinning, due to cannot office
Portion repairs, so also wouling have to whole for fire grate discarded or replacing, is also uneconomic.
By one-body molded cast fire grate in the case of, as economic casting, generally
Sand casting is carried out by wooden mold.But, the shape of fire grate is complicated, and fire grate
Each position in uneven thickness, therefore the fire grate of model casting is difficult to meet product size essence
Degree.Thus, it is accomplished by carrying out machining to reach desired dimensional accuracy.Such as,
Fire grate width be the design precision prescribed of the fire grate of 150mm be+0～-0.3mm, but casting
The dimensional accuracy of method is ± about 0.5mm.
Normally used high chromium low nickel heat resisting cast steel (being equivalent to the material of JIS SCH2) in fire grate
Bending strength and resistance to impact relatively low compared with rolled steel for general structure etc..Therefore, load
Heart incombustible etc. in garbage in incinerator operates is nipped between siege component parts
And there is fracture distress accident or the accidental damage when installing fire grate.Thus, it is desirable to very
Note the operation to fire grate.
Summary of the invention
The problems referred to above point that the present invention is had in view of conventional art, to provide a kind of fire grate as class
Topic, this fire grate can be formed by having the material of merchantability (marketability), or logical
The parts crossing the simple shape having uniform thickness and having high casting accuracy are formed.
It addition, other problems of the present invention are, it is provided that the repeatability of a kind of product size precision
The manufacture method of excellent fire grate.
It addition, other problems of the present invention are, stably guarantee the mechanical strength of fire grate.
It addition, other problems of the present invention are, it is provided that a kind of fire grate, it can the most more
Change or keep in repair, easily overhaul maintenance.
The present invention is for solving at least one in above-mentioned problem.
A mode according to the present invention provides a kind of fire grate.This fire grate uses in incinerator,
Have: the 1st alloy steel products；And the 2-in-1 gold steel different from described 1st alloy steel products.
According to another mode of the present invention, in above-mentioned fire grate, described 1st alloy steel products tool
There is thermostability, corrosion resistance and/or the mar proof higher than described 2-in-1 gold steel.
According to another mode of the present invention, in above-mentioned fire grate, described 1st alloy steel products structure
In the stove that one-tenth exposes in the stove of described incinerator, exposed surface is at least some of.
According to another mode of the present invention, in above-mentioned fire grate, by described 1st alloy steel products
The parts and the parts being made up of described 2-in-1 gold steel that constitute are interconnected by bolt.
Another mode according to the present invention, it is provided that the manufacture method of a kind of fire grate.This manufacturer
Method is the manufacture method using the fire grate in incinerator, has and will be made up of the 1st alloy steel products
Parts lead to by the parts being made up of different from described 1st alloy steel products 2-in-1 gold steel
Cross the operation of bolt link.
According to above-mentioned fire grate, it is possible to as there is the material of merchantability or as having uniformly
Thickness also obtains the simple shape of high casting accuracy, forms the 1st alloy steel products and/or the 2nd
Alloy steel products.
According to above-mentioned fire grate, such as, the parts of the fire grate of exposed surface in composition stove can be set to
There is the alloy steel products of thermostability, corrosion resistance and/or mar proof.On the other hand, it is possible to will
Need not to improve thermostability, corrosion resistance and/or mar proof constitutes the stove of non-exposed surface in stove
The parts of row, are set to the rolled steel for general structure that mechanical strength is high.It addition, can be by structure
The parts becoming the fire grate of the main combustion section that fire grate temperature is high are set to corrosion resistant plate.Therefore, according to upper
State fire grate, it is possible to by with use economy corresponding to environment and the favourable parts of durability and part
Ground is constituted.
The bending strength of general structure rolled plate and corrosion resistant plate etc. and resistance to impact ratio
Heat resisting cast steel is excellent.Even if in the case of the 1st alloy steel products of above-mentioned fire grate is cast steel, also
General structure rolled plate or corrosion resistant plate etc. can be used, example as 2-in-1 gold steel
As formed ribs.Thus, above-mentioned fire grate can obtain stable mechanical strength, and can prevent
Only lose accident as casting fire grate shortcoming.
In above-mentioned fire grate, component parts is by bolted joints, therefore, it is possible to the letter when the maintenance of fire grate
That singly decomposes fire grate constitutes the parts of exposed surface and the parts of non-exposed surface in composition stove in stove.
Therefore, it is possible to easily part is changed or maintenance is constituted in the composition stove burnt or worn and torn
The parts of exposed surface, it is contemplated that can shorten service time, cut down upkeep cost.Its result is,
It is capable of the regeneration of valuable metals resources, it is to avoid the meaningless of resource discards.
By rolled steel for general structure etc., there is merchantability for assembling the fire grate framework of fire grate
Material constitute, and can be assembled by welding, therefore can be by general panel beating
Factory manufactures.Panel beating technology is to have actual application and stable skill widely in industrial quarters
Art.As long as panel beating technology has possesses work mechanism (lathe, cutting machine and boring machine
Deng) and welding equipment, it is not necessary to the advantage that special installation just can manufacture part.If by same
If panel beating factory manufactures fire grate and fire grate framework, it is possible to cost is greatly reduced.By tool
There is merchantability and there is the material above-mentioned fire grate of composition of thermostability, corrosion resistance and/or mar proof
Stove in the case of exposed surface, in the tentative calculation of the rate of cost reduction, it is possible in basic purchase price
On lattice, cost is reduced by 20% to 40%.
It addition, by by 2-in-1 to the 1st alloy steel products and the gold steel by bolt link, and can
Manufacture above-mentioned fire grate.Thus, compared with situation about such as being engaged by welding, using the teaching of the invention it is possible to provide
The fire grate that the repeatability of product size precision is excellent.
Accompanying drawing explanation
Fig. 1 is the siege of the stoker formula incinerator representing the fire grate employing present embodiment
The overall diagram of part.
Fig. 2 A is the top perspective view of the fire grate of present embodiment.
Fig. 2 B is the face upwarding stereogram of the fire grate of present embodiment.
Fig. 3 is the figure of the component parts of the fire grate representing present embodiment.
Fig. 4 is to represent the stationary furnace in the siege part of the stoker formula incinerator shown in Fig. 1
Row and the outline amplification view of movable fire grate.
Fig. 5 A is the top perspective view of conventional fire grate.
Fig. 5 B is the face upwarding stereogram of conventional fire grate.
Description of reference numerals
6 ... fire grate
61 ... upper wall portions
62 ... front wall portion
63 ... antetheca bottom
64 ... rear wall parts
65 ... fin
67 ... bolt
Detailed description of the invention
Hereinafter, it is explained with reference to embodiments of the present invention.In the accompanying drawing of following description,
Identical reference is marked for element identically or comparably and omits saying of repetition
Bright.
Fig. 1 is the siege of the stoker formula incinerator representing the fire grate employing present embodiment
The overall diagram of part.As it can be seen, stoker formula incinerator 1 includes having as entirety
The siege portion 11 of step structure.Siege portion 11 is arranged with multilamellar stoker 2.Motor-driven stove
Row 2 has arid region 2a, the 1st combustion zone along the moving direction of burning disposal object
2b, the 2nd combustion zone 2c and after-combustion region 2d.
Siege portion 11 has separator 3 at width central part.In the example shown in Fig. 1,
Stoker formula incinerator 1 is provided with 1 separator 3, thus stoker 2 is split
Left and right two row are become.But it is not limited to this, it is also possible to along wide in stoker formula incinerator 1
Degree direction arranges multiple separator 3, thus stoker 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 stoker 2, the 1st combustion zone 2b, the 2nd combustion zone 2c and
After-combustion region 2d carries combustion air respectively.
Stoker 2 have along siege portion 11 width arrange multiple fixed grates,
The multiple movable fire grate arranged the most in the width direction.The row of fixed grate and movable fire grate
Row 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 pie graph 1 institute shown in Fig. 2 A and Fig. 2 B
The fixed grate of the stoker 2 shown 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
The front wall portion 62 of front end and the antetheca bottom 63 extended from the lower end of front wall portion 62.Further
Ground, fire grate 6 has the rear wall of the rear end being located at upper wall portions 61 as the supporting mass of fire grate 6
Portion 64 and multiple fins 65 of the double cooling of reinforcement.Fin 65 is close with rear wall parts 64
Position on there is rear end recess 65d.In illustrated example, in front wall portion 62 and rear wall parts 64
Between be provided with 2 fins 65.
The gap (inner space) delimited by upper wall portions 61 and multiple fin 65 is formed for combustion-supporting
The path that air passes through.That is, fire grate 6 is shaped generally as the bulk of hollow.It addition, fin 65
In the side of rear wall parts 64 close compared with length direction pars intermedia, there is prominent face 65a.Each
Prominent face 65a has through hole 65b.These through holes 65b is inserted with pin 66.At 2 wings
On the face relative to each other of sheet 65, being welded with 4 bolt bearing seat 65c of tabular, it is used for
The bolt 67 that upper wall portions 61 and front wall portion 62 are connected by supporting with fin 65.That is, 2
Fin 65 is engaged with each other via bolt bearing seat 65c.Bolt bearing seat 65c is formed
For inserting 2 holes of bolt 67.
Fig. 3 is the figure of the component parts of the fire grate 6 representing present embodiment.As it can be seen,
It is welded with 3 bolts screwed togather for bolt 67 on the medial surface of upper wall portions 61 and fixes seat 61a.
Fix on seat 61a at bolt, be formed with 2 holes defining thread groove on inner peripheral surface.?
Make to be formed at the position in the hole on bolt bearing seat 65c and the position in hole of seat 61a fixed by bolt
Put under involutory state, bolt 67 is inserted in the hole of bolt bearing seat 65c and and bolt
The hole of fixing seat 61a screws togather, and thus makes upper wall portions 61 and fin 65 bolted joints.
It addition, be welded with 1 bolt screwed togather for bolt 67 on the medial surface of front wall portion 62
Fixing seat 62a.Fix to be formed on seat 62a at bolt on inner peripheral surface, define thread groove
2 holes.Seat 62a is fixed with bolt making the position being formed at the hole on bolt bearing seat 65c
The involutory state in the position in hole under, bolt 67 is inserted in the hole of bolt bearing seat 65c
And fix the hole of seat 62a with bolt and screw togather, thus make front wall portion 62 and fin 65 bolted joints.
Here, the upper wall portions 61 of fire grate 6, front wall portion 62 and antetheca bottom 63 have by
1 alloy (being equivalent to an example of the 1st alloy steel products) layer and 2-in-1 gold (are equivalent to 2-in-1
Gold steel an example) layer constitute double-deck sheet material (hereinafter referred to as double sheets).The
1 alloy-layer is the alloy-layer with high thermostability, corrosion resistance and/or mar proof, the 2nd
Alloy-layer is the alloy-layer with high weldability.
In the present embodiment, so that motor-driven shown in Fig. 1 of the 1st alloy-layer of double sheets
The mode exposed in the stove of grate type incinerator 1 constitutes fire grate 6.In other words, fire grate 6 is at machine
The face (exposed surface in stove) exposed in the stove of dynamic grate type incinerator 1 is by double-deck plate
1st alloy-layer of material is constituted.
The upper wall portions 61 of fire grate 6, front wall portion 62 and antetheca bottom 63 have exposed surface in stove.
Therefore, in the present embodiment, the upper wall portions 61 of fire grate 6, front wall portion 62 and antetheca bottom
63 are made up of above-mentioned double sheets.It addition, the upper wall portions 61 of fire grate 6, front wall portion 62 and front
In the stove of wall bottom 63, exposed surface is made up of the first alloy-layer of double sheets.Upper wall portions 61,
Exposing in the stove of stoker formula incinerator 1 of front wall portion 62 and antetheca bottom 63
Face (non-exposed surface in stove) is made up of the second alloy-layer of double sheets.It addition, as supporting
The rear wall parts 64 of body and fin 65 such as (are equivalent to 2-in-1 gold steel by steel material for welding
One example) formed.
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 knot
The material of the welding property excellents such as structure rolled plate, rolling corrosion resistant plate is selected.Additionally, the
As long as an alloy-layer has than the thermostability of the second alloy floor height, corrosion resistance and/or wear-resistant
The alloy-layer of property, as long as the second alloy-layer has the weldability than the first alloy floor height
Alloy-layer.
Additionally, in the fire grate 6 shown in Fig. 2 and Fig. 3, upper wall portions 61, front wall portion 62
And antetheca bottom 63 can also replace double sheets, and by by having thermostability, corrosion resistant
The single alloy (being equivalent to an example of the 1st alloy steel products) of erosion property and/or mar proof is constituted
Sheet material (monolayer sheet material) is constituted.In this case, upper wall portions 61, front wall portion 62 and front
Wall bottom 63 can be manufactured by casting.Upper wall portions 61 and front is being manufactured by casting
In the case of wall portion 62, it is possible to make bolt fix seat 61a and bolt fixes seat 62a respectively
One-body molded with upper wall portions 61 and front wall portion 62.Therefore, there is no need to fix bolt seat 61a
And bolt fixes seat 62a and is welded on upper wall portions 61 and front wall portion 62.In this case,
Seat 61a fixed by bolt and bolt to fix 2 holes of seat 62a be to be added by tapping after casting
Work and obtain.
Fig. 4 is to represent the stationary furnace in the siege part of the stoker formula incinerator shown in Fig. 1
Row, movable fire grate and the outline amplification view of wing furnace row.As it can be seen, by multiple fixing
Stationary furnace arrangement 4A and the movable fire grate row 4B being made up of multiple movable fire grates that fire grate is constituted
It is respectively provided with the fire grate 6 shown in Fig. 2 A and Fig. 2 B.Additionally, in illustrated example, it is shown that one
Individual 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
It is fixed on fixed frame 5A and the upper end of movable framework 5B.Movable fire grate row 4B is in order to transfer
Burning disposal object garbage, and contact slide anteroposterior on one side with stationary furnace arrangement 4A.
Gap uniformity ground between the adjacent fire grate 6 of each row keeps, and does one's utmost to prevent combustion air
Pass from this gap and dust falls this gap.By the stationary furnace arrangement 4A being alternately arranged
With movable fire grate row 4B, it is possible to carry out the movement of effective burn processing object garbage, anti-
Turn and stirring.
Stationary furnace arrangement 4A and movable fire grate row 4B has scraping of the upper surface slide with fire grate 6
Plate 7.Scraper plate 7 is entrenched on the teat 81 of the upper surface front end being located at grate supporting beam 8.Separately
Outward, for keep fire grate 6 rear end recess 65d maintaining part 82 and for fire grate 6
Pin 66 engaging the engaging recessed part 83 with hook section be 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 do not exist
On stationary furnace arrangement 4A and movable fire grate row 4B, scraper plate 7 is set, and under the antetheca with fire grate 6
Portion 63 directly contacts with the upper wall portions 61 of the fire grate 6 of adjacent column and the mode slided is constituted.
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 82b
On through hole screw togather and fix distance member 82c, thus between the rear wall parts 64 of fire grate 6 is clipped in
Between parts 82c and front side teat 82a.Thus, fire grate 6 is maintained on assigned position.
Additionally, the fire grate 6 shown in Fig. 2 have with shown in Fig. 5 A and Fig. 5 B by casting
Conventional fire grate 9 same shape manufactured.Therefore, the fire grate 6 shown in Fig. 2 and figure
Fire grate 9 shown in 5A and Fig. 5 B can be installed to the fire grate shown in Fig. 4 in the same way
On backbar 8.In other words, shown in the fire grate 6 and Fig. 5 A and Fig. 5 B shown in Fig. 2
Fire grate 9 has interchangeability.
Then, the method illustrating to manufacture the fire grate 6 shown in Fig. 2.First, from double sheets pair
The component parts of the fire grate 6 shown in Fig. 3 have the upper wall portions 61 of exposed surface, antetheca in stove
Portion 62 and antetheca bottom 63 carry out blank stock layout, and carry out cutting processing.Expose in there is no stove
The fin 65 in face and rear wall parts 64 carry out blank stock layout from steel plate for welding and carry out cutting and add
Work.Using in the case of CUT carries out cutting processing, as required, in order to
The requirement meeting parts precision is also ground processing etc. to each component parts under being cut.
Then, the bolt making upper wall portions 61 is fixed the hole of seat 61a and is welded on fin 65
The position in the hole of bolt bearing seat 65c is involutory, and bolt 67 is inserted into bolt bearing seat 65c
In and fix seat 61a with bolt and screw togather.Thus, upper wall portions 61 and fin 65 bolted joints.
It addition, make the bolt of front wall portion 62 fix the hole of seat 62a and be welded on fin 65
The position in hole of bolt bearing seat 65c involutory, bolt 67 is inserted into bolt bearing seat 65c
In and fix seat 61a with bolt and screw togather.Thus, make front wall portion 62 and with front wall portion 62 1
Antetheca bottom 63 bolted joints that body is formed is on fin 65.
When upper wall portions 61, front wall portion 62 and antetheca bottom 63 are arrived because of corrosion or abrasion etc.
When reaching replacing period, by pull down bolt 67 and can be by these parts 61,62,63 from wing
Easily pull down on sheet 65 and change.
Additionally, in the component parts of the fire grate 6 shown in Fig. 3, upper wall portions 61 and front wall portion
62 carry out blank stock layout from double sheets respectively, but these parts 61,62 can also be cast steel
Product.In this case, upper wall portions 61 and front wall portion 62 can be with integrally castings, it is also possible to make
Cast for independent component parts.
It addition, as bolt 67, it is possible to use the upper surface at bolt head to be formed with hexagon ring
Bolt or the periphery of bolt head with hexagon ring are formed as hexagonal hex bolts.At stove
In row 6, when by upper wall portions 61, front wall portion 62 and antetheca bottom 63 and fin 65 bolt
During joint, screw togather bolt 67 from the private side of fire grate 6.Thus, for fastening bolt 67
The space of tool is less, and the bolt of band hexagon ring is therefore preferably used.Additionally, it is desirable that bolt 67
Material be to ensure the metal of intensity based on using temperature, and for seat will not be fixed with bolt
It is different that what the thread groove of 61a and 62a was killed fixes seat 61a and 62a from bolt
Metal.
As mentioned above, according to the fire grate 6 of present embodiment, it is possible to only make composition with high
The parts of exposed surface in the stove of temperature corrosive environment contact, by by have thermostability, corrosion resistance,
And/or first alloy (being equivalent to an example of the 1st alloy steel products) of mar proof constitute parts,
Or the parts of simple shape (tabular etc.) are constituted, thus, with the fire grate phase of integrally casting
Ratio, it is possible to reduce manufacturing cost, and thermostability, corrosion resistance and/or mar proof can be provided
Excellent fire grate 6.
It addition, according to the fire grate 6 of present embodiment, it is possible to according to using environments to of fire grate 6
Select the material appropriate for each component parts of fire grate 6.Additionally, in the present embodiment,
By the 1st alloy-layer (the 1st alloy steel products) with thermostability, corrosion resistance and/or mar proof
The upper wall portions 61 of exposed surface, front wall portion 62 and one of antetheca bottom 63 in formation composition stove
Point.
It addition, in the case of employing the double sheets that merchantability is high in the present embodiment, figure
Each component parts shown in 5 is welding structure, therefore, there is no need to special skill as casting
Art, special installation, it is possible to manufacture fire grate 6 by common panel beating factory.
It addition, according to the fire grate 6 of present embodiment, though the part burn of fire grate 6 and thick
Degree reduces, it is also possible to carry out the maintenance of a part in using facility.Protect therefore, it is possible to shorten
Support period, and the discarded amount of metals resources can be cut down.
It addition, according to the fire grate 6 of present embodiment, it is possible to fin 65 is used steel material for welding
Deng (2-in-1 gold steel), therefore, it is possible to significantly improve the machinery relative to bending, impact etc.
Characteristic.
It addition, according to the fire grate 6 of present embodiment, it is possible to improved as sending out by low cost
Electricity equipment and require the stoker formula incinerator of the waste treatment facilities operated steadily in the long term
The durability of thermostability, corrosion resistance, mar proof and/or the mechanical strength etc. of middle fire grate 6.
And then, it is possible to reduce the accident with fire grate as reason, and easily overhaul maintenance.
It is explained above embodiments of the present invention, but the present invention is not limited to above-mentioned embodiment party
Formula, it is possible in the range of the technological thought described in claims and description, accompanying drawing
Carry out various deformation.Even additionally, be the most directly documented in description and accompanying drawing is any
Shape and material, as long as playing the effect of the present application, effect, be at the present application
Technological thought in the range of.
Claims (5)
1. a fire grate, uses in incinerator, it is characterised in that have:
1st alloy steel products；With
The 2-in-1 gold steel different from described 1st alloy steel products.
Fire grate the most according to claim 1, it is characterised in that
Described 1st alloy steel products has the thermostability higher than described the 2-in-1 gold steel, corrosion-resistant
Property and/or mar proof.
Fire grate the most according to claim 1 and 2, it is characterised in that
Exposed surface in the stove that described 1st alloy steel products exposes in being formed in the stove of described incinerator
At least partially.
Fire grate the most according to claim 1 and 2, it is characterised in that
The parts being made up of described 1st alloy steel products and the portion being made up of described 2-in-1 gold steel
Part is interconnected by bolt.
5. a manufacture method for fire grate, this fire grate uses in incinerator, the system of described fire grate
The method of making is characterised by,
Have parts being made up of the 1st alloy steel products and will be by with described 1st alloy steel products not
The parts that same 2-in-1 gold steel the are constituted operation by bolt link.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510303070.9A CN106287762A (en) | 2015-06-04 | 2015-06-04 | Fire grate and the manufacture method of fire grate |
| JP2016022852A JP2017003251A (en) | 2015-06-04 | 2016-02-09 | Fire grate and manufacturing method of fire grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510303070.9A CN106287762A (en) | 2015-06-04 | 2015-06-04 | Fire grate and the manufacture method of fire grate |
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| Publication Number | Publication Date |
|---|---|
| CN106287762A true CN106287762A (en) | 2017-01-04 |
Family
ID=57656627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510303070.9A Pending CN106287762A (en) | 2015-06-04 | 2015-06-04 | Fire grate and the manufacture method of fire grate |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017003251A (en) |
| CN (1) | CN106287762A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024043187A1 (en) * | 2022-08-26 | 2024-02-29 | 荏原環境プラント株式会社 | Hearth component, hearth component production method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001254922A (en) * | 2000-03-13 | 2001-09-21 | Sumitomo Heavy Ind Ltd | Fire grate |
| CN101405542A (en) * | 2006-03-17 | 2009-04-08 | 多伊克斯投资有限公司 | Liquid-cooled grill comprising wear plates |
| CN103032878A (en) * | 2011-09-29 | 2013-04-10 | 荏原环境工程株式会社 | Grate mounting structure for grate-type incinerator, scraper plate and grate-type incinerator |
| CN103742926A (en) * | 2014-01-15 | 2014-04-23 | 重庆科技学院 | Grate set for garbage incinerator |
| CN106196090A (en) * | 2015-05-05 | 2016-12-07 | 荏原环境工程株式会社 | Siege component parts, fire grate and the manufacture method of siege component parts |
-
2015
- 2015-06-04 CN CN201510303070.9A patent/CN106287762A/en active Pending
-
2016
- 2016-02-09 JP JP2016022852A patent/JP2017003251A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001254922A (en) * | 2000-03-13 | 2001-09-21 | Sumitomo Heavy Ind Ltd | Fire grate |
| CN101405542A (en) * | 2006-03-17 | 2009-04-08 | 多伊克斯投资有限公司 | Liquid-cooled grill comprising wear plates |
| CN103032878A (en) * | 2011-09-29 | 2013-04-10 | 荏原环境工程株式会社 | Grate mounting structure for grate-type incinerator, scraper plate and grate-type incinerator |
| JP2013072628A (en) * | 2011-09-29 | 2013-04-22 | Ebara Environmental Plant Co Ltd | Mounting structure of fire grate of stoker-type incinerator, scraper, and stoker-type incinerator |
| CN103742926A (en) * | 2014-01-15 | 2014-04-23 | 重庆科技学院 | Grate set for garbage incinerator |
| CN106196090A (en) * | 2015-05-05 | 2016-12-07 | 荏原环境工程株式会社 | Siege component parts, fire grate and the manufacture method of siege component parts |
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| Publication number | Publication date |
|---|---|
| JP2017003251A (en) | 2017-01-05 |
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Application publication date: 20170104 |