CN101206032B - Coal charging type combustion device and combustion method for process article - Google Patents
Coal charging type combustion device and combustion method for process article Download PDFInfo
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- CN101206032B CN101206032B CN200610169042A CN200610169042A CN101206032B CN 101206032 B CN101206032 B CN 101206032B CN 200610169042 A CN200610169042 A CN 200610169042A CN 200610169042 A CN200610169042 A CN 200610169042A CN 101206032 B CN101206032 B CN 101206032B
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 47
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- 238000001816 cooling Methods 0.000 claims description 44
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- 238000010586 diagram Methods 0.000 description 2
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Abstract
The invention provides a coal combustion apparatus which can effectively absorb heat expansion of grates of a coal unit and stably burn processed objects. The invention is provided with a plurality of coal units (2) which are parallelly arranged in width direction of a furnace, boundary blocks (10) which are arranged between adjacent coal units (2) and the processed objects (W) which are thrown in and burned. Each boundary block (10) is provided with a side plate (11) which is opposite to end faces of the grates (4 and 5) of the coal units (2), an upside plate (12) which is arranged on the upper part of an side plate (11), and a push and press part (13) which pushes and presses the side plate (11) to the end faces of the grates (4 and 5).
Description
Technical field
The present invention relates to coal charging type combustion device, particularly have at a plurality of coals unit that disposes side by side on the width of stove and the coal charging type combustion device that is configured in the boundary block (block) between these coal unit.The invention still further relates to the method for using coal charging type combustion device to come the burn processing thing.
Background technology
In the past; On the width of stove side by side a plurality of coals of configuration unit, between adjacent coal unit in the coal charging type combustion device of configure boundaries piece; Need the thermal expansion of the grate of absorption coal unit, do not producing the gap between grate and the furnace wall and between grate and boundary block.
Under the situation of using fixed boundary block, much be through guaranteeing that between boundary block and grate gap of cold initial stage absorbs the thermal expansion of the grate that is positioned at its both sides thereby have.That is, using under the situation of fixed boundary block, during cold conditions that incinerator stops between grate and boundary block formation initial stage configure boundaries piece with gap, absorb the thermal expansion of grate by this initial stage gap.
Yet, forming such initial stage during the gap, incinerator gets into foreign matter when starting in this initial stage gap, start to finish post gap and also be held.In this case, combustion air partly is blown, and it is inhomogeneous to cause burning.When in above-mentioned initial stage gap, getting into foreign matter, can't when incinerator turns round, guarantee imaginary thermal expansion uptake, action is bad thereby grate is limited generation, in the contact-making surface generation inordinate wear of grate and boundary block.
Under the thermal expansion amount condition of different according to the regional grate in the stove, be necessary to change cold initial stage gap corresponding to each regional thermal expansion amount.Therefore, under the above-mentioned situation of using fixed boundary block, need prepare the grate of different in width according to each regional difference.Even under the situation of having used boundary block with the function that absorbs thermal expansion; If can not adjust the structure of thermal expansion uptake according to each zone; Then the wearing and tearing at the side plate of the big local boundary block of the thermal expansion amount of grate become severe, between side plate and grate, produce the gap in the little place of thermal expansion amount.Therefore, because of the part of combustion air blow out cause burning inhomogeneous.
Above-mentioned boundary block and support its support beam to be configured between the adjacent coal unit, so these are provided with the place and become extremely narrow limited space.This be because, because boundary block does not have the function of transferring rubbish, so when boundary block was big area (or wide width), rubbish rested on the scope of boundary block, therefore need make the area (or width) of boundary block narrow and small as much as possible.Therefore, if boundary block is not a compact structure, then be difficult to additional cooling device above that.The support beam of boundary block also becomes high temperature owing to the heat transfer in the stove, thus for reduce intensity because of support beam keep with thermal expansion cause to the thermal stress of miscellaneous part from producing, produce the needs that cool off them.Therefore, hope to cool off effectively its inner boundary block with compact structure.
Boundary block is set at the little position of cooling effect that causes because of 1 combustion air, thereby the high temperature corrosion that is easy to be exposed to the component parts in the high temperature carries out in during many, haves no alternative but carry out parts swap.Have under the situation of boundary block of the function that absorbs thermal expansion, inside, boundary block ground also becomes high temperature, thus be difficult to long-term between ground keep the function of absorption thermal expansion.Because according to each zone in the stove and temperature is different, thereby then can produce the not enough excessively of cooling as if the distribution of the spray volume of the cooling air that cools off boundary block inadequately.
Summary of the invention
The present invention is made in view of above-mentioned prior art problems point, and its 1st purpose is to provide the thermal expansion that can absorb the grate of coal unit effectively, the coal charging type combustion device of burn steadily handled thing and the combustion method of handled thing.
The 2nd purpose of the present invention be to provide can cool off effectively the boundary block that is disposed between the adjacent coal unit, long-term between coal charging type combustion device and the combustion method of handled thing of burn steadily handled thing.
According to the 1st example of the present invention, a kind of thermal expansion of the grate of coal unit, coal charging type combustion device of burn steadily handled thing of absorbing effectively is provided.This coal charging type combustion device has a plurality of coals unit on the width that is configured in stove side by side and is configured in the boundary block between the adjacent above-mentioned coal unit, is used to the handled thing that burns and dropped into.Above-mentioned boundary block has: sidewall is relative with the end face of the grate of above-mentioned coal unit; Top wall is configured in the top of above-mentioned side plate; And pushing portion, above-mentioned sidewall elasticity is urged to the end face of above-mentioned grate.
According to the 2nd example of the present invention, the combustion method of the handled thing of a kind of thermal expansion that absorbs the grate of coal unit effectively, burn steadily handled thing is provided.According to this method; The coal charging type combustion device that use has a plurality of coals unit on the width that is configured in stove side by side and is configured in the boundary block between the adjacent above-mentioned coal unit; On one side will be with the end face of the grate of above-mentioned coal unit the sidewall of relative above-mentioned boundary block to the end face elasticity pushing of this grate, Yi Bian the above-mentioned handled thing that burns.
According to the 3rd example of the present invention, provide can cool off effectively the boundary block that is disposed between the adjacent coal unit, long-term between the coal charging type combustion device of burn steadily handled thing.This coal charging type combustion device has: cooling flowing path is formed at the inside of above-mentioned boundary block; Air is supplied with stream, and the air that cools off usefulness is supplied to above-mentioned cooling flowing path; And air discharge stream, will be expelled to the outside at the air of above-mentioned cooling flowing path circulation.
According to the 4th example of the present invention, provide can cool off effectively the boundary block that is disposed between the adjacent coal unit, long-term between the combustion method of handled thing of burn steadily handled thing.According to this method; The coal charging type combustion device that use has a plurality of coals unit on the width that is configured in stove side by side and is configured in the boundary block between the adjacent above-mentioned coal unit; Thereby the air that will cool off usefulness on one side is supplied to the cooling flowing path of the inside that is formed at above-mentioned boundary block cools off above-mentioned boundary block, Yi Bian the above-mentioned handled thing that burns.
A kind of coal charging type combustion device; Be used to the handled thing that burns and dropped into; It is characterized in that; Have a plurality of coals unit on the width that is configured in stove side by side and be configured in the boundary block between the adjacent above-mentioned coal unit; Above-mentioned boundary block is included in a plurality of module units of cutting apart on the length direction of above-mentioned coal unit and supports above-mentioned module unit and supply with the support beam of cooling air to above-mentioned module unit, and above-mentioned module unit has: sidewall, with movable grate with fixedly the end face of grate is relative; And top wall; Be configured in the top of above-mentioned sidewall; And can on the length direction of above-mentioned coal unit, be free to slide, above-mentioned sidewall has constituted two sides of above-mentioned module unit, in above-mentioned module unit, also disposes pushing portion; This pushing portion has elastomer and pushes the adjustment bolt that this elastomer comes corrective action power; This pushing portion pushes above-mentioned sidewall, and above-mentioned sidewall and adjacent above-mentioned movable grate and the end face of said fixing grate are close to, and above-mentioned pushing portion comprises plural the 1st pushing portion of a sidewall in the above-mentioned sidewall of pushing and plural the 2nd pushing portion that pushes another sidewall in the above-mentioned sidewall; Length direction along above-mentioned coal unit has been arranged alternately above-mentioned the 1st pushing portion and above-mentioned the 2nd pushing portion; The cooling air of supplying with from above-mentioned support beam via the passage that is communicated with above-mentioned support beam circulates above-mentioned a plurality of module units, thereby the inside of cooling off above-mentioned module unit also is provided with air and discharges stream; The cooling air that this air discharge stream will circulate in above-mentioned module unit is expelled to the outside, and above-mentioned air is discharged stream and is connected with the suction side of the pressure fan of combustion air.
Effect of the present invention is following:
According to the present invention, can absorb the thermal expansion of the grate of coal unit effectively, the burn steadily handled thing.Can cool off the boundary block that is disposed between the adjacent coal unit effectively, long-term between the burn steadily handled thing.
Description of drawings
Fig. 1 is the integrally-built stereogram of the coal charging type combustion device of an expression example of the present invention.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is the stereogram of a part of boundary block of the coal charging type combustion device of presentation graphs 1.
Fig. 4 is the vertical cross section of the boundary block of presentation graphs 3.
Fig. 5 is the horizontal sectional drawing of the boundary block of presentation graphs 3.
Fig. 6 is the ideograph that flows of cooling air of the coal charging type combustion device of presentation graphs 1.
The specific embodiment
With reference to Fig. 1～Fig. 6 the example of coal of the present invention (stoker) formula burner is carried out detailed explanation below.In addition, in Fig. 1～Fig. 6, give identical symbol to omit the explanation of repetition for identical or suitable inscape.
Fig. 1 is the integrally-built stereogram of the coal charging type combustion device (incinerator) of an expression example of the present invention.As shown in Figure 1, coal charging type combustion device (incinerator) has the furnace sidewall 1 (side only is shown) of the both sides of being located at incinerator and parellel arranged 3 the coal unit 2 of broad ways between these furnace sidewall 1 in Fig. 1.
Fig. 2 is the partial enlarged drawing of Fig. 1.As shown in Figure 2, each coal unit 2 is fixed on the firing machine framework 3, has a plurality of movable grates 4 and fixing grate 5.These movable grates 4 and fixing grate 5 are become stepped along the flow direction of handled thing (rubbish) W that is dropped into by assortment alternately.
Below movable grate 4 and fixing grate 5, oil hydraulic cylinder 6 is set.Through these oil hydraulic cylinder 6 actions, movable grate 4 reciprocating action on the flow direction of rubbish W.Be accompanied by the reciprocating action of so movable grate 4, send to downstream successively when stirring the rubbish W that drops into from rubbish funnel (not having diagram), in stove, make its burning simultaneously.
As shown in Figure 1, between coal unit 2 and furnace sidewall 1, be provided with and can absorb the movable grate 4 and the fixing sealing block 7 of the thermal expansion of grate 5.As the structure of such sealing block 7, for example can use disclosed structure in the TOHKEMY 2001-173920 communique.Be provided with between the adjacent coal unit 2 and can absorb the movable grate 4 and the fixing boundary block 10 of the thermal expansion of grate 5.
Fig. 3 is the stereogram of a part of boundary block 10 of the coal charging type combustion device of presentation graphs 1.Fig. 4 is the vertical cross section of the boundary block 10 of presentation graphs 3.Fig. 5 is the expression horizontal sectional drawing.As shown in Figure 3, boundary block 10 is made up of a plurality of module units 100 of cutting apart along the throughput direction of rubbish W.
Like Fig. 3～shown in Figure 5, each module unit 100 has: as 2 side plates 11 of the sidewall relative with the end face of the grate 4,5 of coal unit 2; Upper board 12 as the top wall on the top that is configured in side plate 11; And with the pushing portion 13 of side plate 11 to the end face elasticity pushing of the grate 4,5 of coal unit 2.The support beam 15 that stiffener 14 is being fixed in welding is configured in the below of boundary block 10, and boundary block 10 is supported on the support beam 15 via stiffener 14.In addition, support beam 15 is fixed on (with reference to Fig. 2) on the firing machine framework 3.
As shown in Figure 4, side plate 11 has from the upper end inwardly square outstanding top protuberance 21, the inwardly square outstanding bottom protuberance 22 from the lower end.Be formed with the groove 23 of the top protuberance 21 of chimeric side plate 11 in the bottom of upper board 12.Because the top protuberance 21 of side plate 11 and the groove 23 of upper board 12 are chimeric like this, so upper board 12 becomes not the upwards structure of direction disengaging.In addition, upper board 12 is configured at the length direction (throughput direction of rubbish W) of coal unit 2 with going up free sliding, can absorb the thermal expansion of upper board 12 self.The inspection that boundary block 10 need carry out between short-term is termly reorganized and outfit; But need the time to reorganize and outfit through fixed method inspections such as bolts; Therefore in this example; When reorganizing and outfit or checking, slide successively from the upper board 12 of the module unit 100 in downstream through making boundary block 10, thereby can easily unload these boundary blocks 10.
Like Fig. 4 and shown in Figure 5, protuberance 22 is formed with the slotted hole 31 that extends along the width of stove in the bottom of side plate 11, in this slotted hole 31, inserts to be connected with and implants bolt 32.As shown in Figure 4, implant bolt 32 and be installed on the stiffener 14 on the support beam 15, thereby side plate 11 is installed on the support beam 15 on this implantation bolt 32 through nut 33 is embedded into.Wherein, nut 33 is consolidated into side plate 11 loosely and can on the width of stove, be slided via slotted hole 31.Thus, side plate 11 easily slides on the width of stove corresponding to the thermal expansion of the grate 4,5 of coal unit 2.
As shown in Figure 4, pushing portion 13 comprises: the push plate 41 of end face that side plate 11 is pressed against the grate 4,5 of coal unit 2; As elastomeric helical spring 42 to push plate 41 effects (application of force); Insert the pipe portion 43 of logical helical spring 42; The fixed part 44 of mounting pipe portion 43; And the support plate 45 of supporting the end of helical spring 42.Fixed part 44 is positioned fixing with respect to support beam 15.Through such structure, side plate 11 is pressed to the end face of the grate 4,5 of coal unit 2 by elasticity through helical spring 42.
As shown in Figure 5, support plate 45 is installed on the fixed part 44 through 2 adjustment bolts 46, rotates through make these adjustment bolts 46 with instruments such as spanners, thereby can adjust the distance between support plate 45 and the fixed part 44.Thus, can adjust the active force of helical spring 42, and adjustable parapleura 11 is with respect to the pushing force of grate 4,5.
Through such structure, even when incinerator stops (during cold conditions), the side plate 11 of boundary block 10 is close to through the helical spring 42 by the compression of adjustment bolt 46 on the end face of grate 4,5 of coal unit 2.Therefore, in the time of can realizing cold conditions and stove prevent that the entering of foreign matter, no bias current from providing stable combustion air equably, can realize the smooth combustion in the coal charging type combustion device when starting.Can positively absorb the thermal expansion of the grate 4,5 of coal unit 2; Therefore can eliminate restriction or the inordinate wear of grate 4,5 and side plate 11 of the action of the grate 4,5 that the thermal stress of the width that is accompanied by thermal expansion causes; Can carry out stable running for a long time, can prolong the exchange cycle of wearing terrain.
At least be provided with pushing portion 13 more than 1 with respect to 1 side plate 11, add up to the pushing portion more than 2 that is provided with respect to 2 side plates of module unit 100 11.These pushing portions along the throughput direction of rubbish W by alternate configurations.The fastening amount of the adjustment bolt 46 through adjusting each pushing portion 13 can realize the uniform pushing force to 2 side plates 11.And then pushing portion is provided with number preferably with respect to 2 of 1 side plate 11.As stated, boundary block 10 is made up of a plurality of module units 100, therefore with being divided into a plurality of zones (for example arid region, combustion zone, after-combustion zone etc.) in the stove, can adjust the pushing force of each regional side plate 11.Promptly; Because the thermal expansion amount of each the regional grate 4,5 in stove is different; Therefore through adjust the active force of helical spring 42 with thermal expansion amount of grate 4,5 in each zone, can solve the problem that the part of the caused combustion air of generation in inordinate wear and side plate 11 and grate 4, the gap between 5 of side plate 11 blows out with offseting.
Wherein, if boundary block 10 does not have the structure that the above-mentioned thermal expansion that absorbs side plate 11 absorbs action, then there is the action of side plate 11 to be limited, produces the possibility of inordinate wear.Therefore, in this example, between the top protuberance 21 of the side plate 11 of boundary block 10 and upper board 12, be formed with the gap 24 of horizontal direction.This gap 24 considers that the thermal expansion uptake of side plate 11 is set, and through gap 24, upper board 12 can not limit side plate 11 thermal expansions and absorb action.
As shown in Figure 4, support that the section shape of the support beam 15 of boundary block 10 is the hollow dihedral, be formed with the stream (air supply stream) 50 that makes the tempering air circulation in the inside of support beam 15.As shown in Figure 5, be formed with a plurality of passages 34 that are connected with support beam 15 inner air supply streams 50 in the bottom of boundary block 10.Side plate 11 by boundary block 10 becomes from the cooling flowing path 51 of air supply stream 50 through the tempering air circulation of passage 34 supplies with the space that upper board 12 forms.The size of passage 34 is designed corresponding to the amount of the tempering air of necessity.In addition, in this example, import to cooling flowing path 51 with cooling off the bottom of air, but be not limited thereto, for example also can will cool off air and be directed into cooling flowing path 51 from the top of boundary block 10 from boundary block 10.
Fig. 6 is the ideograph that flows of the cooling air of expression coal charging type combustion device.As shown in Figure 6, coal charging type combustion device have with above-mentioned support beam 15 inner air supply with extraneous air that streams 50 are connected supply with stream 52, with tempering air deliver to extraneous air supply with the pressure fan 53 of stream 52, adjustment supply to air supply with stream 50 air amount air quantity adjustment damper (damper) 54, discharge air that circulation is formed at the air of the inner cooling flowing path 51 of above-mentioned boundary block 10 and discharge stream 55 and discharge the extraneous air that stream 55 is connected with air and discharge stream 56.
The cooling air is inhaled into by pressure fan 53, behind air quantity adjustment damper 54 adjustment air quantity, is fed to support beam 15 inner air through extraneous air supply stream 52 and supplies with stream 50.This air is supplied with stream 50 interior cooling air are discharged to the inside of boundary block 10 from the passage 34 of each module unit 100 cooling flowing path 51.This cooling air is fed to air when flowing through inner helical spring 42 of the inner cooling flowing paths of boundary block 10 51 cooling boundary blocks 10 or pipe portion 43 etc. and discharges stream 55.Be directed into air that air discharges stream 55 and discharge the suction side that stream 56 is imported into the pressure fan (not having diagram) that combustion air for example uses, be used as combustion air through extraneous air.
As stated; Between the top protuberance 21 of the side plate 11 of boundary block 10 and upper board 12, form gap 24 for the thermal expansion that absorbs grate 4,5; But consider that if such gap 24 is arranged then the cooling air in the cooling flowing path 51 drains in the stove, temperature descends in the stove.Also consider and to produce because boundary block 10 is set at rubbish or burns grey contacted position so rubbish or burn ash and invade the inside of boundary block 10, the thermal expansion that hinders side plate 11 and absorb the such significant problem of action, inaccessible passage 34 or cooling flowing path 51.Therefore; In this example; As shown in Figure 4; Through the 24 configuration seal members 25 of the gap between the top of side plate 11 protuberance 21 and upper board 12, positively the cooling flowing path 51 of encapsulation boundary piece 10 invades in the boundary block 10 thereby prevent to cool off leakage, rubbish or the burning ash of air in stove.Therefore, Castor Oil ground carries out the action with respect to the thermal expansion of side plate 11, prevents the obturation of passage or cooling flowing path 51 etc., the function that long term maintenance is stable.Can make the cooling air positively the component parts of Contact Boundary piece 10 improve cooling effect, improve the durability of the component parts of boundary block 10.
Wherein, if the cooled air of boundary block 10 directly is provided in the stove, then since in the stove air fed place be limited in boundary block 10 around, the quantitative change that therefore can help to burn as 1 combustion air is few.Therefore, outside in the excess air cool furnace, also cause increasing the disadvantage of gas flow.Therefore, in this example, the cooling air is discharged the exterior guiding of stream 55 to stove from the cooling flowing path 51 of boundary block 10 through air, make from the inside of boundary block 10 and reduce to the air of stove internal leakage.Thus, can prevent cooling or the such disadvantage of increase of gas flow in the stove due to the excess air, can not influence the control of combustion air amount, but the stable burning of long term maintenance.
In this example, because stream 50 is supplied with as air in the inside of support beam 15, therefore can apply flexibly the limited space in the coal charging type combustion device effectively, also merge and carry out the cooling of support beam 15.And then, owing to will cool off the cooling flowing path 51 that air supplies to the inside of boundary block 10, therefore can positively cool off helical spring 42 or other component parts in the boundary block 10.In a plurality of zones in the different stove of temperature; Set the size (directly) of the passage of boundary block 10 corresponding to this temperature and suitably distribute the cooling air; Cool off the helical spring 42 in the boundary block 10 thus effectively, long-term between ground guarantee its function, improve the durability of the component parts of boundary block 10.
As stated; In this example; Through pushing force as elastomeric helical spring 42; With the end face elasticity pushing of the side plate 11 of boundary block 10 to the grate 4,5 of coal unit 2, therefore can improve the sealing between the side plate 11 of end face and boundary block 10 of grate 4,5, the part that can prevent above-mentioned combustion air blows out or the entering of incombustible etc.Therefore, can carry out the supply of stable combustion air chronically.Can positively absorb the thermal expansion of grate 4,5, reduce the driving resistance that the thermal expansion by grate 4,5 causes.Therefore, can realize that the wearing and tearing of minimizing, grate 4,5 and side plate 11 of load of raising, firing machine framework 3 of mechanical stability of reduction, the grate 4,5 of driving force reduce, can prolong the durable years of coal charging type combustion device extraordinarily.
Owing to the cooling air is circulated in the cooling flowing path 51 of the inside of boundary block 10, therefore can positively cool off boundary block 10.Because therefore gap between the top of side plate 11 protuberance 21 and upper board 24 configuration seal members 25 can prevent to cool off air bleeding in stove, can the cooling air be utilized (recycling) again as 1 time or 2 air.Therefore, compare the control of more stably to burn, avoid the burning of part high load capacity and cross heating, suppress the carrying out of the high temperature corrosion in grate 4,5 and the side plate 11 with coal charging type combustion device in the past.
So far an example of the present invention is illustrated, but the present invention is not limited to above-mentioned example, self-evident, all different forms can be implemented in its technological thought scope.
Claims (3)
1. coal charging type combustion device is used to the handled thing that burns and dropped into, it is characterized in that,
Have a plurality of coals unit on the width that is configured in stove side by side and be configured in the boundary block between the adjacent above-mentioned coal unit,
Above-mentioned boundary block is included in a plurality of module units of cutting apart on the length direction of above-mentioned coal unit and supports above-mentioned module unit and supply with the support beam that cools off air to above-mentioned module unit,
Above-mentioned module unit has:
Sidewall is with movable grate with fixedly the end face of grate is relative; And
Top wall is configured in the top of above-mentioned sidewall, and can on the length direction of above-mentioned coal unit, be free to slide,
Above-mentioned sidewall has constituted two sides of above-mentioned module unit,
In above-mentioned module unit, also dispose pushing portion; This pushing portion has elastomer and pushes the adjustment bolt that this elastomer comes corrective action power; This pushing portion pushes above-mentioned sidewall, and above-mentioned sidewall and adjacent above-mentioned movable grate and the end face of said fixing grate are close to
Above-mentioned pushing portion comprises plural the 1st pushing portion of a sidewall in the above-mentioned sidewall of pushing and plural the 2nd pushing portion that pushes another sidewall in the above-mentioned sidewall,
Length direction along above-mentioned coal unit has been arranged alternately above-mentioned the 1st pushing portion and above-mentioned the 2nd pushing portion,
The cooling air of supplying with from above-mentioned support beam via the passage that is communicated with above-mentioned support beam circulates above-mentioned a plurality of module units, thus the inside of cooling off above-mentioned module unit,
Also be provided with air and discharge stream, the cooling air that this air discharge stream will circulate in above-mentioned module unit is expelled to the outside, and above-mentioned air is discharged stream and is connected with the suction side of the pressure fan of combustion air.
2. coal charging type combustion device as claimed in claim 1 is characterized in that,
Above-mentioned sidewall has the protuberance of giving prominence to inside from the upper end,
Above-mentioned top wall has the chimeric groove of protuberance that makes above-mentioned sidewall.
3. coal charging type combustion device as claimed in claim 2 is characterized in that,
At the protuberance of above-mentioned sidewall and the gap configuration of above-mentioned top wall seal member is arranged.
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| US4235172A (en) * | 1978-03-07 | 1980-11-25 | Josef Martin Feuerungsbau Gmbh | Grate with compensating means for use in industrial furnaces |
| US5205100A (en) * | 1990-04-23 | 1993-04-27 | Traitement Industriel Des Residus Urbains (T.I.R.U.) | Beam forming an expansion seal between two side-by-side grate layers with alternately fixed and mobile bars |
| CN2339866Y (en) * | 1998-08-05 | 1999-09-22 | 双鸭山市锅炉总厂 | Fire-gate side wall of boiler |
| JP2001173920A (en) * | 1999-12-21 | 2001-06-29 | Ebara Corp | Burner equipped with stoker |
| CN1162646C (en) * | 2002-04-23 | 2004-08-18 | 屠柏锐 | Domestic refuse incinerator |
| CN1540207A (en) * | 2003-04-24 | 2004-10-27 | 株式会社田熊 | Fire grate for motor grate combustion appts. and sealing structure between side walls of combustion appts. |
| CN1763429A (en) * | 2005-10-12 | 2006-04-26 | 伟明集团有限公司 | Reciprocating multi-row grate type domestic refuse incinerator |
| CN201045497Y (en) * | 2006-12-19 | 2008-04-09 | 株式会社荏原制作所 | Coal-feeding combustion device |
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|---|---|
| CN101206032A (en) | 2008-06-25 |
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