CN216106768U - Coke oven small flue air inflow distribution adjusting structure - Google Patents
Coke oven small flue air inflow distribution adjusting structure Download PDFInfo
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- CN216106768U CN216106768U CN202122366135.8U CN202122366135U CN216106768U CN 216106768 U CN216106768 U CN 216106768U CN 202122366135 U CN202122366135 U CN 202122366135U CN 216106768 U CN216106768 U CN 216106768U
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Abstract
The utility model relates to a coke oven small flue air input distribution and regulation structure, wherein a regenerative chamber of a coke oven is a cellular regenerative chamber; the adjusting structure comprises a grate plate adjusting structure and a grate brick adjusting structure which are arranged in the same coke oven; the grate plate adjusting structure is arranged at one end or two ends of the regenerator corresponding to the machine side and the coke side, and the grate brick adjusting structure is arranged at the rest parts of the regenerator. The utility model adopts the adjustment mode of combining the downward adjustment mode and the side adjustment mode, can conveniently, quickly, accurately and effectively adjust the distribution amount of coal gas and/or air entering each cellular regenerator, improves the heating system of the coke oven, improves the uniform maturity of the coke along the length direction of the coke oven and the service life of the coke oven, and simultaneously achieves the purpose of saving energy.
Description
Technical Field
The utility model relates to the technical field of coke ovens, in particular to a distribution and adjustment structure for air inflow of a small flue of a coke oven.
Background
At present, a heat storage chamber of the coke oven generally adopts a cellular structure along the machine side-coke side direction (long direction) and is used for accurately regulating and controlling the flow of air and/or coal gas entering each vertical flue of the combustion chamber. The small flue of the coke oven is a channel connecting the regenerative chambers of the coke oven and the waste gas shutter, is positioned below the regenerative chambers and mainly used for guiding and distributing air and/or coal gas into each cellular regenerative chamber and collecting and guiding hot waste gas generated by combustion to the flue. The distribution proportion of air and/or coal gas entering each cellular regenerator from the small flue directly influences the heating system and the uniformity of the long-direction heating of the coke oven during the production of the coke oven, and determines the quality of the produced coke and the service life of the coke oven body; therefore, under different heating systems, the adjustment needs to be accurately and timely carried out according to the actual production conditions, and two modes of downward adjustment or lateral adjustment are usually adopted.
For the downward-regulating coke oven, grate bricks with regulating holes and regulating bricks are commonly used to regulate and control the distribution of air quantity entering each cellular regenerator (for example, the Chinese patent application with publication number CN 102146293A discloses a method and a furnace body structure for regulating the heating uniformity of the coke oven from the lower part). When the adjustment is carried out in a down-regulation mode, the operation of taking out or putting in the bricks needs to be carried out in the basement of the coke oven; the grate brick layer is higher than the basement of the coke oven, so the operation is more difficult. And the size of each adjusting brick is fixed, and the adjustable numerical value is only a few fixed numerical values, and adjacent adjusting bricks can not be ensured to be tightly attached in the operation process, so the adjusting precision is poor.
Some large coke ovens adopt a side adjustment mode that a grate plate which can be drawn out from the side surface of a regenerative chamber is adjusted. When the side adjustment mode is adopted for adjustment, although the operation is simple and accurate, when the opening degree of the grate plate adjusting hole below the inner side cellular heat storage chamber is adjusted, the whole grate plate needs to be completely taken out, so that the collision between the grate plate and the wall brick of the partition wall of the outer side heat storage chamber in the operation process is greatly increased, and the possibility of damaging the wall brick and the grate plate of the heat storage chamber cellular is further increased. Meanwhile, when the adjustment operation is carried out, the operation can be carried out only when the corresponding regenerator is in a descending gas flow state, and the operation is completed in an exchange period, otherwise, the production of the coke oven is influenced, so the requirement on the operation time is strict.
Disclosure of Invention
The utility model provides a distribution and adjustment structure for the air inflow of a small flue of a coke oven, which adopts an adjustment mode combining a downward adjustment mode and a side adjustment mode, can conveniently, quickly, accurately and effectively adjust the distribution amount of coal gas and/or air entering each cellular heat storage chamber, improves the heating system of the coke oven, improves the uniform maturity of the coke along the length direction of the coke oven and the service life of the coke oven, and simultaneously achieves the purpose of saving energy.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a coke oven small flue air input distribution and regulation structure, a regenerator of a coke oven is a cellular regenerator; the adjusting structure comprises a grate plate adjusting structure and a grate brick adjusting structure which are arranged in the same coke oven; the grate plate adjusting structure is arranged at one end or two ends of the regenerator corresponding to the machine side and the coke side, and the grate brick adjusting structure is arranged at the rest parts of the regenerator.
The grate plate adjusting structure is arranged on the machine side or the coke side and is calculated from the machine side furnace end or the coke side furnace end, the number of the grid regenerative chambers correspondingly adjusted by the grate plate adjusting structure is at least 2, and the grid regenerative chambers are 1/2 of the total number of the grid regenerative chambers at most.
The grate plate adjusting structure is arranged on the machine side and the coke side and is calculated from a machine side furnace end and a coke side furnace end, and the number of the grid regenerative chambers correspondingly adjusted by the grate plate adjusting structure is at least 2 respectively.
The grate brick adjusting structure consists of grate bricks and adjusting bricks, the grate bricks are arranged between the small flue and the cellular heat storage chamber, grate brick adjusting holes are formed in the grate bricks, and the adjusting bricks extend into the grate brick adjusting holes from the basement of the coke oven and are placed in the grate brick adjusting holes.
Grate brick adjusting holes are formed in the middle of the grate bricks, and a plurality of grate brick round holes are formed in the grate bricks outside the grate brick adjusting holes.
The grate plate adjusting structure is composed of a drawing grate plate arranged between the small flue and the cellular heat storage chamber, grate plate adjusting holes are formed in the grate plate, and the opening sectional area of the grate plate adjusting holes can be adjusted through a grate plate adjusting plate.
The grate brick adjusting structure and the grate plate adjusting structure are in elastic sealing connection through an occlusion structure between the grate bricks and the grate plate.
The occlusion structure consists of a groove arranged at the connecting end of the grate brick and a sealing element arranged at the connecting end of the grate plate; the grate brick is provided with a groove at the joint corresponding to the grate plate, the corresponding end of the grate plate extends into the groove, and the extending end is hermetically connected with the groove through a sealing element; the sealing element is composed of ceramic fiber felt and petroleum asphalt felt paper which are arranged on the outer side of the grate plate from inside to outside in sequence.
Compared with the prior art, the utility model has the beneficial effects that:
1) the adjustment mode combining the downward adjustment mode and the side adjustment mode is adopted, the flow of air and/or coal gas distributed to each cellular regenerator from the small flue along the length direction of the coke oven can be accurately adjusted, and the uniform coefficient of the transverse rows of the coke oven is ensured, so that the uniform maturity of coke along the length direction of the coke oven is ensured;
2) the adjustment is convenient, the operation time can be shortened, and the influence of the adjustment operation on the normal production of the coke oven is reduced to the minimum;
3) the improvement of the heating system during the production of the coke oven is promoted, the service life of the coke oven body is prolonged, and the purpose of saving energy is achieved.
Drawings
FIG. 1 is a first structural schematic diagram of a coke oven small flue gas inflow distribution and adjustment structure.
FIG. 2 is a structural schematic diagram II of a coke oven small flue gas inflow distribution and adjustment structure.
FIG. 3 is a schematic view of the connection between the grate bricks and the grate plate according to the present invention.
In the figure: grate brick adjusting structure II, grate brick adjusting structure 1, grate plate 2, grate brick 3, grate plate adjusting plate 4, grate plate adjusting hole 5, adjusting brick 6, grate brick adjusting hole 7, grate brick round hole 8, ceramic fibrofelt 9, petroleum asphalt felt paper 10, groove
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in figures 1 and 2, the coke oven small flue gas inlet amount distribution and adjustment structure is characterized in that a regenerative chamber of the coke oven is a cellular regenerative chamber; the adjusting structure comprises a grate plate adjusting structure II and a grate brick adjusting structure I which are arranged in the same coke oven; the grate plate adjusting structure II is arranged at one end or two ends of the regenerator corresponding to the machine side and the coke side, and the grate brick adjusting structure I is arranged at the rest parts of the regenerator.
As shown in figure 2, the grate plate adjusting structure II is arranged on the machine side or the coke side, and the number of the divided heat storage chambers correspondingly adjusted by the grate plate adjusting structure II is at least 2 and at most 1/2 of the total number of the divided heat storage chambers, calculated from the machine side furnace end or the coke side furnace end.
As shown in figure 1, the grate plate adjusting structures II are arranged on the machine side and the coke side, and the number of the divided regenerative chambers correspondingly adjusted by the grate plate adjusting structures II is at least 2 respectively according to the calculation of the machine side furnace end and the coke side furnace end.
The grate brick adjusting structure I is composed of grate bricks 2 and adjusting bricks 5, the grate bricks 2 are arranged between the small flue and the cellular heat storage chamber, grate brick adjusting holes 6 are formed in the grate bricks 2, and the adjusting bricks 5 extend into the grate brick adjusting holes 6 from a coke oven basement and are placed in the grate brick adjusting holes 6.
Grate brick adjusting holes 6 are formed in the middle of the grate bricks 2, and a plurality of grate brick round holes 7 are formed in the grate bricks 2 on the outer sides of the grate brick adjusting holes 6.
The grate plate adjusting structure II is composed of a drawing type grate plate 1 arranged between a small flue and a cellular heat storage chamber, grate plate adjusting holes 4 are formed in the grate plate 1, and the opening sectional area of the grate plate adjusting holes 4 can be adjusted through a grate plate adjusting plate 3.
The grate brick adjusting structure I and the grate plate adjusting structure II are in elastic sealing connection through an occlusion structure between the grate bricks 2 and the grate plate 1.
As shown in fig. 3, the occlusion structure consists of a groove 10 arranged at the connecting end of the grate brick 2 and a sealing element arranged at the connecting end of the grate plate 1; the grate brick 2 is provided with a groove 10 at the joint corresponding to the grate plate 1, the corresponding end of the grate plate 1 extends into the groove 10, and the extending end is hermetically connected with the groove 10 through a sealing element; the sealing element is composed of a ceramic fiber felt 8 and petroleum asphalt felt paper 9 which are arranged on the outer side of the grate plate 1 from inside to outside in sequence.
The utility model relates to a coke oven small flue air input distribution and regulation structure, which adopts a mode of combining a down regulation mode and a side regulation mode to regulate the flow of air and/or coal gas distributed to each cellular regenerator by a small flue; the part correspondingly provided with the grate brick adjusting structure I adopts a downward adjustment mode, namely the number of adjusting bricks 5 at the grate brick adjusting holes 6 is increased or decreased for adjustment by operating from the basement of the coke oven; the part correspondingly provided with the grate plate adjusting structure II adopts a side adjusting type adjusting mode, namely, the grate plate 1 is drawn out from the machine side furnace end and/or the coke side furnace end of the regenerator, and the opening sectional area of the grate plate adjusting hole 4 is adjusted by using the grate plate adjusting plate 3.
The utility model adopts an adjusting mode combining a downward adjusting mode and a side adjusting mode, and when the grate plate adjusting structure II is only arranged at one side of the position close to the machine side furnace end or the coke side furnace end, the grate brick adjusting structure I is arranged at the opposite side. When the grate plate adjusting structure II is arranged at the two sides of the position close to the machine side furnace end and the coke side furnace end, the grate brick adjusting structure I is arranged in the middle of the coke oven.
The connection boundary of the grate brick adjusting structure I and the grate plate adjusting structure II is in sealed elastic connection by adopting an occlusion structure, namely, a groove 10 with a certain depth is formed in one side of the grate brick 2 corresponding to the connection end of the grate plate 1, one end of the grate plate 1 correspondingly connected with the grate brick 2 is wrapped with an elastic ceramic fiber felt 8, and the outermost layer is wrapped with petroleum asphalt felt paper 9.
The grate brick adjusting structure I preferably adopts an adjustable grate brick form, namely, grate brick round holes 7 of a fixed diffusion type are formed in the periphery of the grate brick 2, grate brick adjusting holes 6 are formed in the middle of the grate brick adjusting structure, and adjustment is realized by increasing and decreasing adjusting bricks 5 at the grate brick adjusting holes 6.
In the grate plate adjusting structure II, a plurality of grate plate adjusting holes 4 are formed in the grate plate 1 corresponding to each cellular heat storage chamber along the length direction of the coke oven, and after the grate plate 1 is pulled out, the opening sectional area of the grate plate adjusting holes 4 is adjusted through the grate plate adjusting plate 3 to realize adjustment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (8)
1. A coke oven small flue air input distribution and regulation structure, a regenerator of a coke oven is a cellular regenerator; it is characterized in that the adjusting structure comprises a grate plate adjusting structure and a grate brick adjusting structure which are arranged in the same coke oven; the grate plate adjusting structure is arranged at one end or two ends of the regenerator corresponding to the machine side and the coke side, and the grate brick adjusting structure is arranged at the rest parts of the regenerator.
2. The distribution and adjustment structure for the air inflow of the small flue of the coke oven as claimed in claim 1, wherein the grate plate adjustment structure is arranged on the oven side or the coke side, and the number of the divided heat storage chambers correspondingly adjusted by the grate plate adjustment structure is at least 2 and at most 1/2 of the total number of the divided heat storage chambers.
3. The coke oven small flue air inflow distribution and adjustment structure as claimed in claim 1, wherein the grate plate adjustment structure is arranged on the machine side and the coke side, and the number of the divided heat storage chambers correspondingly adjusted by the grate plate adjustment structure is at least 2 respectively calculated from the machine side furnace head and the coke side furnace head.
4. The coke oven small flue air inflow distribution and adjustment structure as claimed in claim 1, wherein the grate brick adjustment structure is composed of grate bricks and adjustment bricks, the grate bricks are arranged between the small flue and the cellular heat storage chamber, grate brick adjustment holes are arranged on the grate bricks, and the adjustment bricks extend into the grate brick adjustment holes from the basement of the coke oven and are placed in the grate brick adjustment holes.
5. The coke oven small flue air inflow distribution and adjustment structure as claimed in claim 4, wherein the grate brick is provided with a grate brick adjustment hole in the middle, and a plurality of grate brick round holes are arranged on the grate brick outside the grate brick adjustment hole.
6. The coke oven small flue gas inflow distribution and adjustment structure as claimed in claim 1, wherein the grate plate adjustment structure is composed of a pull-out grate plate arranged between the small flue and the cellular regenerator, grate plate adjustment holes are formed in the grate plate, and the opening cross-sectional area of the grate plate adjustment holes can be adjusted through the grate plate adjustment plate.
7. The coke oven small flue gas inlet amount distribution and adjustment structure as claimed in claim 1, wherein the grate brick adjustment structure and the grate plate adjustment structure are in elastic sealing connection through an engagement structure between the grate bricks and the grate plate.
8. The coke oven small flue gas inlet amount distribution and adjustment structure as claimed in claim 7, wherein the engagement structure is composed of a groove provided at the grate brick connecting end and a sealing element provided at the grate plate connecting end; the grate brick is provided with a groove at the joint corresponding to the grate plate, the corresponding end of the grate plate extends into the groove, and the extending end is hermetically connected with the groove through a sealing element; the sealing element is composed of ceramic fiber felt and petroleum asphalt felt paper which are arranged on the outer side of the grate plate from inside to outside in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122366135.8U CN216106768U (en) | 2021-09-28 | 2021-09-28 | Coke oven small flue air inflow distribution adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122366135.8U CN216106768U (en) | 2021-09-28 | 2021-09-28 | Coke oven small flue air inflow distribution adjusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216106768U true CN216106768U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122366135.8U Active CN216106768U (en) | 2021-09-28 | 2021-09-28 | Coke oven small flue air inflow distribution adjusting structure |
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|---|---|
| CN (1) | CN216106768U (en) |
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2021
- 2021-09-28 CN CN202122366135.8U patent/CN216106768U/en active Active
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