CN114110632B - Inter-row staggered stepping type chain grate - Google Patents
Inter-row staggered stepping type chain grate Download PDFInfo
- Publication number
- CN114110632B CN114110632B CN202111615510.6A CN202111615510A CN114110632B CN 114110632 B CN114110632 B CN 114110632B CN 202111615510 A CN202111615510 A CN 202111615510A CN 114110632 B CN114110632 B CN 114110632B
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- Prior art keywords
- grate
- chain
- guiding light
- shaft
- light wheel
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- 230000007246 mechanism Effects 0.000 claims description 67
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 12
- 239000000446 fuel Substances 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H11/00—Travelling-grates
- F23H11/06—Travelling-grates with the bars movable relatively to one another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H11/00—Travelling-grates
- F23H11/18—Details
- F23H11/20—Driving-means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H11/00—Travelling-grates
- F23H11/18—Details
- F23H11/22—Moving fuel along grate; Cleaning of grate
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses an inter-row staggered stepping type chain grate, which comprises a shell and is characterized in that: the novel front axle driving device comprises a shell, and is characterized in that a front axle and a rear axle are rotatably supported in the shell, a first front axle driving sprocket, a first front axle guiding light wheel, a second front axle driving sprocket and a second front axle guiding light wheel are sequentially arranged on the front axle, a first rear axle guiding light wheel, a first rear axle driving sprocket, a second rear axle guiding light wheel and a second rear axle driving sprocket are sequentially arranged on the rear axle, a first chain is jointly wound on the first front axle driving sprocket and the first rear axle guiding light wheel, a second chain is jointly wound on the first front axle guiding light wheel and the first rear axle driving sprocket, a third chain is jointly wound on the second front axle driving sprocket and the second rear axle guiding light wheel, and a fourth chain is jointly wound on the second front axle guiding light wheel and the second rear axle driving sprocket.
Description
Technical Field
The invention relates to the field of chain grate bars, in particular to a staggered stepping type chain grate bar.
Background
Currently, traveling grate bars and reciprocating grate bars are widely applied to hot water boilers and steam boilers, and are the most main combustion equipment in industrial boilers.
Chain grates are generally of three main types: chain belt type fire grate, scale type fire grate, beam type fire grate, etc.; reciprocating grates generally have: main forms of inclined reciprocating grate, horizontal reciprocating grate, etc. Long-term use shows that no matter which chain grate has common problems, namely, no relative movement exists between fuel and grate segments in the conveying process, and the defects of insufficient fuel disturbance, difficult ignition, poor fuel adaptability, easy coking, low combustion efficiency and the like exist. The traditional reciprocating grate can drive the fuel to move forwards through the reciprocating movement of the grate segments, and can drive the fuel to move relative to the grate segments. However, in the conventional reciprocating grate, the grate segments only reciprocate in situ, so that the stirring effect on fuel is very limited, and the fuel is still difficult to fully burn. There is thus a need for a method or apparatus that solves the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides the inter-row staggered stepping type chain grate which has the advantages of simple structure, ingenious design and reasonable layout, and can enable two adjacent rows of grate segments to perform staggered movement so as to achieve the effect of promoting the full combustion of fuel.
The technical scheme of the invention is as follows: the utility model provides a staggered step-type chain grate stoker between line, includes casing, its characterized in that: the front axle 1 is rotatably supported with a front axle 1 and a rear axle 2, a first front axle driving sprocket 3, a first front axle guiding light wheel 4, a second front axle driving sprocket 5 and a second front axle guiding light wheel 6 are sequentially arranged on the front axle 1, a first rear axle guiding light wheel 7, a first rear axle driving sprocket 8, a second rear axle guiding light wheel 9 and a second rear axle driving sprocket 10 are sequentially arranged on the rear axle 2, a first chain is jointly wound on the first front axle driving sprocket 3 and the first rear axle guiding light wheel 7, a second chain is jointly wound on the first front axle guiding light wheel 4 and the first rear axle driving sprocket 8, a third chain is wound on the second front shaft driving sprocket 5 and the second rear shaft guiding light wheel 9, a fourth chain is wound on the second front shaft guiding light wheel 6 and the second rear shaft driving sprocket 10, a plurality of first grate mechanisms distributed at equal intervals are supported between the first chain and the third chain, a plurality of second grate mechanisms distributed at equal intervals are supported between the second chain and the fourth chain, the front shaft 1 and the rear shaft 2 are driven by a set of independent driving mechanisms respectively,
The first grate mechanism and the second grate mechanism have the same structure,
The first grate mechanism comprises angle steel 11 with two ends fixedly connected with a chain, a support frame 12 is connected on the angle steel 11, a plurality of front connecting seats 13 distributed at equal intervals are arranged on the front side of the support frame 12, a plurality of rear connecting seats 14 distributed at equal intervals are arranged on the rear side of the support frame 12, the front connecting seats 13 and the rear connecting seats 14 are distributed in a staggered manner in the length direction of the support frame 12, fire grate pieces 15 are hinged on the front connecting seats 13 and the rear connecting seats 14, the fire grate pieces 15 face to the front of the support frame 12, a plurality of air holes 16 distributed in an array form are formed on the surface of the fire grate pieces 15,
In the adjacent pair of the first grate mechanism and the second grate mechanism, the grate segments 15 in the grate mechanism positioned at the rear are lapped on the corresponding grate segments 15 in the grate mechanism positioned at the front.
Compared with the prior art, the invention has the following advantages:
The staggered step-type chain grate with the structural form has the advantages that the structure is simple, the design is ingenious, the layout is reasonable, the special structure is designed aiming at the problems existing in the use process of the traditional chain grate, two sets of chains are respectively driven by the special front shaft and the special rear shaft to realize the step-type action, so that the pairs of grate mechanisms on the two sets of chains realize the reciprocating motion of approaching to each other-separating-approaching to each other, a plurality of grate pieces movably connected to a supporting frame realize the swinging in the motion process, the swinging can enable the adjacent grate pieces to do the staggered relative motion, and the fuel on the grate pieces can be repeatedly stirred, fully scattered and fully contacted with air, so that the aim of full combustion is fulfilled. The device realizes the disturbance to the fuel through the longitudinal staggered movement between the adjacent fire grate segments, improves the combustion efficiency, and generates shearing force to the fuel and the coke blocks so as to achieve the purposes of tearing and crushing. Meanwhile, the grate segments are in periodic circulation movement, so that the grate segments are fully cooled in return stroke, and the problem of high-temperature damage of the reciprocating grate segments is solved. Besides, the fire grate plate can be quickly disassembled and assembled in front of the furnace, and the overhaul is convenient. The staggered stepping type chain grate has the advantages of simple manufacturing process and low manufacturing cost, so that the staggered stepping type chain grate has a plurality of advantages, is particularly suitable for popularization and application in the field, and has very broad market prospect.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a top view of a transmission portion in an embodiment of the invention.
Fig. 3 is a schematic perspective view of a single grate mechanism in accordance with an embodiment of the present invention.
Fig. 4 is a side view of a single grate mechanism in accordance with an embodiment of the present invention.
Fig. 5 is a schematic perspective view of a multiple bank grate mechanism in accordance with an embodiment of the present invention.
Fig. 6 is a schematic diagram of the operational process of the multiple bank grate mechanism in accordance with an embodiment of the present invention.
Detailed Description
Specific embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in fig. 1 to 6: the inter-row staggered stepping type chain grate comprises a shell, a front shaft 1 and a rear shaft 2 are rotatably supported in the shell, a first front shaft driving sprocket 3, a first front shaft guiding light wheel 4, a second front shaft driving sprocket 5 and a second front shaft guiding light wheel 6 are sequentially arranged on the front shaft 1, a first rear shaft guiding light wheel 7, a first rear shaft driving sprocket 8, a second rear shaft guiding light wheel 9 and a second rear shaft driving sprocket 10 are sequentially arranged on the rear shaft 2, a first chain is jointly wound on the first front shaft driving sprocket 3 and the first rear shaft guiding light wheel 7, a second chain is jointly wound on the first front shaft guiding light wheel 4 and the first rear shaft driving sprocket 8, a third chain is jointly wound on the second front shaft guiding light wheel 5 and the second rear shaft guiding light wheel 9, a fourth chain is jointly wound on the second front shaft guiding light wheel 6 and the second rear shaft driving sprocket 10, a plurality of chains are jointly distributed between the first chain and the second chain and the first rear shaft guiding light wheel 7, a plurality of chains are respectively distributed between the first chain and the second chain grate 1 are respectively equidistantly distributed,
The first grate mechanism and the second grate mechanism have the same structure,
The first grate mechanism comprises angle steel 11 with two ends fixedly connected with a chain, a support frame 12 is connected on the angle steel 11, a plurality of front connecting seats 13 distributed at equal intervals are arranged on the front side of the support frame 12, a plurality of rear connecting seats 14 distributed at equal intervals are arranged on the rear side of the support frame 12, the front connecting seats 13 and the rear connecting seats 14 are distributed in a staggered manner in the length direction of the support frame 12, fire grate pieces 15 are hinged on the front connecting seats 13 and the rear connecting seats 14, the fire grate pieces 15 face to the front of the support frame 12, a plurality of air holes 16 distributed in an array form are formed on the surface of the fire grate pieces 15,
In the adjacent pair of the first grate mechanism and the second grate mechanism, the grate segments 15 in the grate mechanism positioned at the rear are lapped on the corresponding grate segments 15 in the grate mechanism positioned at the front.
The working process of the inter-row staggered stepping type chain grate of the embodiment of the invention is as follows: when in work, the front shaft 1 and the rear shaft 2 are driven by the respective driving mechanisms to alternately rotate, the rotating time intervals of the front shaft 1 and the rear shaft are the same, the rotating angles of the front shaft and the rear shaft are the same,
When the front shaft 1 rotates, the first front shaft driving sprocket 3 and the second front shaft driving sprocket 5 on the front shaft 1 can drive the paired first chain and third chain to move, so as to drive all the first grate mechanisms connected between the first chain and the third chain to do stepping advancing actions; in the process, the first chain and the first rear axle guiding light wheel 7 slide, and the third chain and the second rear axle guiding light wheel 9 slide, namely the front axle 1 does not drive the rear axle 2 to move when rotating;
Similarly, when the rear axle 2 rotates, the first rear axle driving sprocket 8 and the second rear axle driving sprocket 10 on the rear axle 2 drive the paired second chain and fourth chain to move, so as to drive all the second fire grate mechanisms connected between the second chain and the fourth chain to perform stepping travelling actions; in the process, the second chain and the first front axle guiding light wheel 4 slide, and the fourth chain and the second front axle guiding light wheel 6 slide, namely the rear axle 2 does not drive the front axle 1 to move when rotating;
The adjacent first grate mechanism and the second grate mechanism are a group, and in the adjacent grate mechanisms, the grate segments 15 in the grate mechanism at the rear are lapped on the grate segments 15 in the grate mechanism at the front (the direction of material conveying is the front),
For convenience in explaining the action process of different fire grate mechanisms in the furnace row in the working process, examples are as follows: taking two groups of adjacent fire grate mechanisms as an example, the two groups of four fire grate mechanisms are respectively marked as a No. 1 fire grate mechanism, a No.2 fire grate mechanism, a No. 3 fire grate mechanism and a No. 4 fire grate mechanism, in an initial state, all fire grate pieces 15 in the No. 1 fire grate mechanism are put on corresponding fire grate pieces 15 in the No.2 fire grate mechanism, all fire grate pieces 15 in the No.2 fire grate mechanism are put on corresponding fire grate pieces 15 in the No. 3 fire grate mechanism … …, at the moment, the distance between the No. 1 fire grate mechanism and the No.2 fire grate mechanism is relatively close, the distance between the No. 3 fire grate mechanism and the No. 4 fire grate mechanism is relatively far; because the fire grate segments 15 in one fire grate mechanism are originally connected with the front connecting seat 13 and the rear connecting seat 14 respectively, the adjacent fire grate segments 15 in the same fire grate mechanism are distributed in a staggered way;
when the fire grate works, the fire grate mechanisms No. 2 and No.4 move forwards by a unit distance, the fire grate mechanisms No.1 and No.3 are not moved, namely the fire grate mechanisms No. 2 and No.4 are respectively far away from the fire grate mechanisms No.1 and No.3, so that fire grate pieces 15 in the fire grate mechanisms No.1 and No.3 naturally swing due to the position change of the supporting object, and the swinging actions of all fire grate pieces 15 in the fire grate mechanisms No.1 and No.3 are realized; in the same principle, in the process of No. 2 and No.4 movement, the fire grate segments 15 also swing along with the movement of the fire grate segments;
After the No. 2 and No. 4 fire grate mechanisms stop moving, the No. 1 and No. 3 fire grate mechanisms move forwards by a unit distance, so that the distances between the No. 2 and No. 4 fire grate mechanisms are pulled back, and similarly, all fire grate pieces 15 in all fire grate mechanisms naturally swing due to the position change of the supporting objects;
That is, when the fire grate works, all fire grate segments 15 drive the combustion products to travel in a stepping mode, and in the traveling process, all fire grate segments 15 regularly swing during each traveling, so that the purposes of crushing the combustion products and enabling the combustion products to be fully combusted are achieved.
Meanwhile, since all the fire grate segments 15 are in periodic and cyclic motion, the fire grate segments 15 can be fully cooled in the return process, and the problem that the fire grate segments are damaged due to high temperature in the traditional reciprocating fire grate is solved.
Claims (1)
1. The utility model provides a staggered step-type chain grate stoker between line, includes casing, its characterized in that: the shell is rotatably supported with a front shaft (1) and a rear shaft (2), a first front shaft driving sprocket (3), a first front shaft guiding light wheel (4), a second front shaft driving sprocket (5) and a second front shaft guiding light wheel (6) are sequentially arranged on the front shaft (1), a first rear shaft guiding light wheel (7), a first rear shaft driving sprocket (8), a second rear shaft guiding light wheel (9) and a second rear shaft driving sprocket (10) are sequentially arranged on the rear shaft (2), a first chain is jointly wound on the first front shaft driving sprocket (3) and the first rear shaft guiding light wheel (7), the first front axle guiding light wheel (4) and the first rear axle driving chain wheel (8) are wound with a second chain together, the second front axle driving chain wheel (5) and the second rear axle guiding light wheel (9) are wound with a third chain together, the second front axle guiding light wheel (6) and the second rear axle driving chain wheel (10) are wound with a fourth chain together, a plurality of first grate mechanisms distributed at equal intervals are supported between the first chain and the third chain together, a plurality of second grate mechanisms distributed at equal intervals are supported between the second chain and the fourth chain together, the front axle (1) and the rear axle (2) are driven by a set of independent driving mechanisms respectively,
The first grate mechanism and the second grate mechanism have the same structure,
The first grate mechanism comprises angle steel (11) with two ends fixedly connected with a chain, a support frame (12) is connected to the angle steel (11), a plurality of front connecting seats (13) distributed at equal intervals are arranged on the front side of the support frame (12), a plurality of rear connecting seats (14) distributed at equal intervals are arranged on the rear side of the support frame (12), the front connecting seats (13) and the rear connecting seats (14) are distributed in a staggered manner in the length direction of the support frame (12), fire grate pieces (15) are hinged to the front connecting seats (13) and the rear connecting seats (14), the fire grate pieces (15) face the front of the support frame (12), a plurality of air holes (16) distributed in an array form are formed in the surface of the fire grate pieces (15),
In the adjacent pair of the first grate mechanism and the second grate mechanism, the grate segments (15) in the grate mechanism positioned at the rear are lapped on the corresponding grate segments (15) in the grate mechanism positioned at the front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111615510.6A CN114110632B (en) | 2021-12-28 | 2021-12-28 | Inter-row staggered stepping type chain grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111615510.6A CN114110632B (en) | 2021-12-28 | 2021-12-28 | Inter-row staggered stepping type chain grate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114110632A CN114110632A (en) | 2022-03-01 |
| CN114110632B true CN114110632B (en) | 2024-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111615510.6A Active CN114110632B (en) | 2021-12-28 | 2021-12-28 | Inter-row staggered stepping type chain grate |
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| Country | Link |
|---|---|
| CN (1) | CN114110632B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT1872B (en) * | 1897-08-26 | 1900-08-10 | Albert Emil Heipt | |
| GB337504A (en) * | 1929-08-22 | 1930-11-06 | Alfred William Bennis | Improvements in or relating to travelling chain grates |
| GB451351A (en) * | 1934-12-03 | 1936-08-04 | Lebrecht Steinmuller | Improvements in and relating to furnace grates |
| CN101846323A (en) * | 2009-03-25 | 2010-09-29 | 赵光辉 | Multi-chain alternative-pushing fire grate device |
| CN208269167U (en) * | 2018-03-26 | 2018-12-21 | 张明 | Novel transverse beam type vertical equity turns round reciprocal grate |
| CN216557172U (en) * | 2021-12-28 | 2022-05-17 | 谢源波 | Interline staggered step type chain grate |
-
2021
- 2021-12-28 CN CN202111615510.6A patent/CN114110632B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT1872B (en) * | 1897-08-26 | 1900-08-10 | Albert Emil Heipt | |
| GB337504A (en) * | 1929-08-22 | 1930-11-06 | Alfred William Bennis | Improvements in or relating to travelling chain grates |
| GB451351A (en) * | 1934-12-03 | 1936-08-04 | Lebrecht Steinmuller | Improvements in and relating to furnace grates |
| CN101846323A (en) * | 2009-03-25 | 2010-09-29 | 赵光辉 | Multi-chain alternative-pushing fire grate device |
| CN208269167U (en) * | 2018-03-26 | 2018-12-21 | 张明 | Novel transverse beam type vertical equity turns round reciprocal grate |
| CN216557172U (en) * | 2021-12-28 | 2022-05-17 | 谢源波 | Interline staggered step type chain grate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114110632A (en) | 2022-03-01 |
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Effective date of registration: 20240724 Address after: 116300 yantun village, Paoya Township, Wafangdian City, Dalian City, Liaoning Province Patentee after: DALIAN HUIYING MACHINERY Co.,Ltd. Country or region after: China Address before: 116000 No. 111, Yaojia Industrial Zone, Ganjingzi District, Dalian City, Liaoning Province Patentee before: Xie Yuanbo Country or region before: China |