CN204141598U - Type labyrinth reciprocating grate fire grate segment - Google Patents
Type labyrinth reciprocating grate fire grate segment Download PDFInfo
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- CN204141598U CN204141598U CN201420592148.4U CN201420592148U CN204141598U CN 204141598 U CN204141598 U CN 204141598U CN 201420592148 U CN201420592148 U CN 201420592148U CN 204141598 U CN204141598 U CN 204141598U
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- fire grate
- grate
- lamellar body
- double wedge
- recessed tooth
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Abstract
The utility model discloses a kind of type labyrinth reciprocating grate fire grate segment.Its fire grate lamellar body is connected on fire grate beam by the draw-in groove of afterbody, the middle part of fire grate lamellar body is provided with support limit hole, support limit hole can be connected on the support bar of fire grate beam, prevents from producing wearing and tearing and frictional force between movable furnace grate plate and fixed grate film, improves the service life of reciprocating furance row.Both sides correspondence in the middle part of fire grate lamellar body is provided with at least one pair of double wedge and recessed tooth, and double wedge and the recessed tooth of two adjacent fire grate segments engage each other, and leave the gap of 0.7mm ~ 1.5mm between the double wedge of every a pair cooperation and recessed tooth; The both sides correspondence of fire grate lamellar body head is provided with chimb and groove.The utility model connects adopting engaging tooth between fire grate segment, and between each cooperating teeth, leave the air capacity that ventilation gap is enough to meet required for coal combustion, so both can ensure the percentage of air passage of fire grate, can reduce again and leak material, decrease scaling loss, make the fuel economy on fire grate segment high, not easily produce black smoke.
Description
Technical field
The utility model relates to a kind of boiler fire bar sheet, particularly relates to a kind of boiler reciprocating grate sheet.
Background technology
Along with environmental requirement improves and the development of boiler technology gradually, country is for regenerative resource, and particularly the support dynamics of biomass power generation is increasing, and a lot of company is Transformation Development biomass power generation all.The special boiler of biomass burning, garbage fuel, trade waste gets more and more simultaneously, also more and more higher to the requirement of combustion apparatus, reciprocating grate has unique advantage when burning these specific fuel, its fixed grate film and movable furnace grate plate interval laminate into stair-stepping grate surface, and fuel moves on grate surface.Its effect is progressively transported to slag-drip opening by the fuel fallen in loading hopper, and make it in the process of transporting, carry out Thorough combustion.Traditional reciprocal grate structure there is many disadvantages, such as, working under hard conditions of reciprocal grate, relative motion is there is between fire grate, blocking easily appears in fire grate segment, the phenomenon of distortion, mutual wearing and tearing between fixed grate film and movable furnace grate plate, make the service life of fire grate segment short, need often to change, add maintenance cost and the time of boiler, decrease the running time of boiler, user have to increase the service life fire grate segment do very thick extend wearing and tearing time, the furnace outage time that reduces boiler; Next is, because living beings are of a great variety, particularly on market with trade waste (vinasse, sugar alcohol slag, furfural dregs etc.); The chicken manure, cow dung etc. of plant; The fine particle fuel such as the middle sawdust of wood-working factory, at this time just can not meet the requirement of burning with common fire grate segment, leak material serious, easily block fire grate, cause stuffy, can not oxygenating in time, not only affect normal combustion, heat utilization efficiency is low, but also can cause boiler in the middle of using, produce the phenomenon of over-emitting black exhaust, need hand poking after boiler scaling simultaneously, add labour intensity, lost labor.So conventional reciprocal grate fire bars combustion efficiency when promoting these fuel is not good, combustion efficiency is had a greatly reduced quality, and boiler efficiency is lower.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, the type labyrinth reciprocating grate fire grate segment of the fire-gate leakage material that provides a kind of long service life, do not need frequent maintenance, can prevent simultaneously.
The technical scheme that the utility model is adopted for achieving the above object is:
A kind of type labyrinth reciprocating grate fire grate segment, comprise fire grate lamellar body, the afterbody of fire grate lamellar body is provided with draw-in groove, by draw-in groove, fire grate lamellar body is connected on fire grate beam, it is characterized in that: the middle part of described fire grate lamellar body is provided with support limit hole, described support limit hole can be connected on the support bar of fire grate beam; The both sides correspondence at the middle part of fire grate lamellar body is provided with at least one pair of double wedge and recessed tooth, and double wedge and the recessed tooth of two adjacent fire grate segments engage each other, and leave the gap of 2mm ~ 2.5mm between the double wedge of every a pair cooperation and recessed tooth; The both sides correspondence of the head of fire grate lamellar body is provided with chimb and groove.
Double wedge described in the utility model and recessed tooth can be trapezoidal, and double wedge and recessed tooth are 4 right, and double wedge and the recessed tooth of fire grate lamellar body side are alternately arranged.
Double wedge described in the utility model and recessed tooth can also be rectangle, and double wedge and recessed tooth are 4 right, and double wedge and the recessed tooth of fire grate lamellar body side are alternately arranged.
Further, the gap of 2mm is left between the double wedge of every a pair cooperation and recessed tooth.
In order to ensure the percentage of air passage of fire grate, fire grate segment head described in the utility model and afterbody are respectively equipped with the first locating piece and the second locating piece, and the thickness of the first locating piece and the second locating piece is 1.5mm ~ 3mm.
The first described locating piece and the thickness of the second locating piece are preferably 2mm.
The good effect that the utility model compared with prior art has is:
Movable furnace grate plate and fixed grate film are respectively by independent they sup-port, prevent from producing wearing and tearing and frictional force between movable furnace grate plate and fixed grate film, improve the service life of reciprocating furance row, decrease the blowing out number of times of boiler, reduce the maintenance cost of boiler, improve the service efficiency of boiler.Eliminate the frictional force between movable furnace grate plate and fixed grate film simultaneously, decrease resistance when fire grate promotes, decrease the power of reciprocal grate pushing motor.The utility model connects adopting engaging tooth between fire grate segment, and between each cooperating teeth, leave the air capacity that ventilation gap is enough to meet required for coal combustion, so both can ensure the percentage of air passage of fire grate, can reduce again and leak material, decrease scaling loss, make the fuel economy on fire grate segment high, not easily produce black smoke.
Accompanying drawing explanation
Fig. 1 is the schematic front view of the utility model type labyrinth reciprocating grate fire grate segment.
Fig. 2 is the schematic top plan view of the utility model type labyrinth reciprocating grate fire grate segment.
Fig. 3 is the A-A cross-sectional schematic in this Fig. 1.
Fig. 4 is the B-B cross-sectional schematic in this Fig. 1.
Fig. 5 is the schematic diagram after the combination of the utility model type labyrinth reciprocating grate fire grate segment.
In figure: 1-afterbody, the recessed tooth of 2-, 3-head, 4-chimb, 5-support limit hole, 6-draw-in groove, 7-double wedge, 8-first locating piece, 9-second locating piece, 10-groove.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described further below by non-limiting embodiment.
As shown in Figures 1 to 5, a kind of type labyrinth reciprocating grate fire grate segment, is cast by ZG4Cr26Ni4Mn3NRe heat resisting cast steel.Comprise fire grate lamellar body, the afterbody 1 of fire grate lamellar body is provided with draw-in groove 6, is connected on fire grate beam by draw-in groove 6 by fire grate lamellar body, and the middle part of described fire grate lamellar body is provided with support limit hole 5, and described support limit hole 5 can be connected on the support bar of fire grate beam; The both sides correspondence at the middle part of fire grate lamellar body is provided with 4 pairs of double wedges and recessed tooth, double wedge and recessed tooth are trapezoidal, double wedge and the recessed tooth of fire grate lamellar body side are alternately arranged, and double wedge and the recessed tooth of two adjacent fire grate segments engage each other, and leave the gap of 0.7mm ~ 1.5mm between the double wedge of every a pair cooperation and recessed tooth; The head of fire grate lamellar body both sides correspondence be provided with chimb and groove.The head of fire grate lamellar body and afterbody are respectively equipped with the first locating piece and the second locating piece, and the thickness of the first locating piece and the second locating piece is 2.5mm.
Cited above embodiment is only for understanding the utility model; it is not the restriction to the technical scheme described by the utility model; the those of ordinary skill of related fields; on the basis of technical scheme described in claim; can also make multiple change or distortion, all equivalent changes or distortion all should be encompassed within claims of the present utility model.
Claims (5)
1. a type labyrinth reciprocating grate fire grate segment, comprise fire grate lamellar body, the afterbody of fire grate lamellar body is provided with draw-in groove, by draw-in groove, fire grate lamellar body is connected on fire grate beam, it is characterized in that: described fire grate lamellar body middle part be provided with support limit hole, described support limit hole can be connected on the support bar of fire grate beam; The both sides correspondence at the middle part of fire grate lamellar body is provided with at least one pair of double wedge and recessed tooth, and double wedge and the recessed tooth of two adjacent fire grate segments engage each other, and leave the gap of 2mm ~ 2.5mm between the double wedge of every a pair cooperation and recessed tooth; The both sides correspondence of the head of fire grate lamellar body is provided with chimb and groove.
2. type labyrinth reciprocating grate fire grate segment according to claim 1, is characterized in that: described double wedge and recessed tooth are trapezoidal, and double wedge and recessed tooth are 4 right, and double wedge and the recessed tooth of fire grate lamellar body side are alternately arranged.
3. type labyrinth reciprocating grate fire grate segment according to claim 1, is characterized in that: the gap leaving 2mm between the double wedge of described every a pair cooperation and recessed tooth.
4. type labyrinth reciprocating grate fire grate segment according to claim 1, is characterized in that: described fire grate segment head and afterbody are respectively equipped with the first locating piece and the second locating piece, and the thickness of the first locating piece and the second locating piece is 1.5mm ~ 3mm.
5. type labyrinth reciprocating grate fire grate segment according to claim 4, is characterized in that: the first described locating piece and the thickness of the second locating piece are 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592148.4U CN204141598U (en) | 2014-10-14 | 2014-10-14 | Type labyrinth reciprocating grate fire grate segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592148.4U CN204141598U (en) | 2014-10-14 | 2014-10-14 | Type labyrinth reciprocating grate fire grate segment |
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| Publication Number | Publication Date |
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| CN204141598U true CN204141598U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201420592148.4U Active CN204141598U (en) | 2014-10-14 | 2014-10-14 | Type labyrinth reciprocating grate fire grate segment |
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| CN (1) | CN204141598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235861A (en) * | 2014-10-14 | 2014-12-24 | 济南锅炉集团有限公司 | Labyrinth type reciprocating fire grate segment of grate |
-
2014
- 2014-10-14 CN CN201420592148.4U patent/CN204141598U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235861A (en) * | 2014-10-14 | 2014-12-24 | 济南锅炉集团有限公司 | Labyrinth type reciprocating fire grate segment of grate |
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| GR01 | Patent grant |