CN115161040A - Heat recovery coke oven lower part insulation construction - Google Patents
Heat recovery coke oven lower part insulation construction Download PDFInfo
- Publication number
- CN115161040A CN115161040A CN202210549111.2A CN202210549111A CN115161040A CN 115161040 A CN115161040 A CN 115161040A CN 202210549111 A CN202210549111 A CN 202210549111A CN 115161040 A CN115161040 A CN 115161040A
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- CN
- China
- Prior art keywords
- heat
- layer
- coke oven
- bricks
- built
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- Pending
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- 239000000571 coke Substances 0.000 title claims abstract description 29
- 238000011084 recovery Methods 0.000 title claims abstract description 23
- 238000009413 insulation Methods 0.000 title claims abstract description 10
- 238000010276 construction Methods 0.000 title claims description 3
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 239000011449 brick Substances 0.000 claims abstract description 25
- 239000000919 ceramic Substances 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 239000004927 clay Substances 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
- C10B29/02—Brickwork, e.g. casings, linings, walls
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention relates to the technical field of heat recovery coke ovens, in particular to a heat preservation structure of the lower part of a heat recovery coke oven. The first heat-insulating layer, the first sealing layer, the second heat-insulating layer, the second sealing layer and the supporting layer are arranged from top to bottom in sequence; the first heat-insulating layer is built by light silica bricks, the first sealing layer is made of ceramic fiber products, the second heat-insulating layer is built by bricks, the second sealing layer is a metal steel plate, and the supporting layer is built by bricks. The sealing performance of the furnace body is further enhanced, the heat loss of the heat recovery coke oven can be effectively reduced, and the heat insulation performance is improved. The invention has simple structure and obvious effect, can improve the generating capacity and has good economic benefit and environmental benefit.
Description
Technical Field
The invention relates to the technical field of heat recovery coke ovens, in particular to a heat preservation structure of the lower part of a heat recovery coke oven.
Background
At present, the coking of domestic and foreign heat recovery coke ovens adopts a heating mode combining direct heating and indirect heating, namely, the upper part of coal in a coking chamber is directly heated, the lower part of the coal is indirectly heated, and finally the coal is refined into coke.
In the production operation process of the heat recovery coke oven, high-temperature flue gas is generated by the combustion of volatile components precipitated from coal in a carbonization chamber in a high-temperature state, part of the coal and coke generated by the coal in contact with air in the oven. After the high-temperature flue gas enters the boiler through the pipeline to recover heat, steam is generated to drive the steam turbine to generate electricity, and in order to ensure that the heat of the subsequent working section is fully utilized to generate electricity, the heat dissipation on the surface of the boiler body and the heat loss in the flowing process of the high-temperature flue gas are hopefully reduced.
The high-temperature flue gas is full of the inner space of the carbonization chamber, heat is transferred to the furnace top, the furnace bottom and the furnace door in the forms of heat conduction and heat radiation, the heat generated by the high-temperature flue gas is finally dissipated to the air through furnace body refractory materials and process iron pieces, the heat loss of the heat recovery coke oven is reduced, and according to the heat transfer principle, the heat transfer and the loss of the heat can be reduced by reducing the heat transfer area, reducing the heat conductivity coefficient of materials and the like. In practice, it is better to reduce the heat transfer path and improve the performance of the heat insulating material of the furnace body refractory. Aiming at the characteristics of the high-temperature flue gas system of the heat recovery coke oven, a new heat recovery coke oven lower part structure needs to be developed to reduce the heat dissipation capacity of the surface of the coke oven.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a heat insulation structure at the lower part of a heat recovery coke oven, so that the sealing property of the oven body is further enhanced, the heat loss of the heat recovery coke oven can be effectively reduced, and the heat insulation performance is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a heat-recovery coke oven lower part heat-insulating structure comprises a first heat-insulating layer, a first sealing layer, a second heat-insulating layer, a second sealing layer and a supporting layer from top to bottom in sequence; the first heat-insulating layer is built by light silica bricks, the first sealing layer is made of ceramic fiber products, the second heat-insulating layer is built by bricks, the second sealing layer is a metal steel plate, and the supporting layer is built by bricks.
The ceramic fiber product is one or more of a ceramic fiber blanket, a ceramic fiber felt and ceramic fiber paper.
The second heat-insulating layer is built by one or more of clay bricks, floating bead bricks and heat-insulating bricks.
The second sealing layer is made of a metal thin steel plate with the thickness of 0.5-3 mm and is paved from the center of the coke oven to the periphery in a pressed joint mode.
The supporting layer is built by red brick walls and overhead clay bricks at intervals.
Compared with the prior art, the invention has the beneficial effects that:
the invention is composed of a first heat preservation layer, a first sealing layer, a second heat preservation layer, a second sealing layer and a supporting layer from top to bottom in sequence. And meanwhile, two heat-insulating layers and two sealing layers are arranged, so that the sealing property of the furnace body is further enhanced, the heat loss of the heat recovery coke oven can be effectively reduced, and the heat-insulating property is improved. Still be equipped with the supporting layer, it is firm to support, improves the stability and the security of structure. The invention has simple structure and obvious effect, can improve the generating capacity and has good economic benefit and environmental benefit.
Drawings
FIG. 1 is a schematic view of the present invention.
In the figure: 1-first heat-insulating layer 2-first sealing layer 3-second heat-insulating layer 4-second sealing layer 5-supporting layer
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1, the heat-insulating structure for the lower part of the heat recovery coke oven has five layers, namely a first heat-insulating layer 1, a first sealing layer 2, a second heat-insulating layer 3, a second sealing layer 4 and a supporting layer 5 from top to bottom.
The first heat preservation layer 1 is built by light silica bricks.
The first sealing layer 2 is made of ceramic fiber products, and the ceramic fiber products are one or more of ceramic fiber blankets, ceramic fiber felts and ceramic fiber papers.
The second heat-insulating layer 3 is built by one or more of clay bricks, floating bead bricks and heat-insulating bricks.
The second sealing layer 4 is made of a thin metal plate with the thickness of 0.5-3 mm and is paved from the center of the coke oven to the periphery in a pressed joint mode.
The supporting layer 5 is built by red brick walls and overhead clay bricks at intervals.
The invention is provided with two heat preservation layers and two sealing layers simultaneously, so that the sealing performance of the furnace body is further enhanced, the heat loss of the heat recovery coke oven can be effectively reduced, and the heat preservation performance is improved. Still be equipped with supporting layer 5, support firm, improve the stability and the security of structure. The invention has simple structure and obvious effect, can improve the generating capacity and has good economic benefit and environmental benefit.
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 the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A heat recovery coke oven lower part insulation construction which characterized in that: the first heat-insulating layer, the first sealing layer, the second heat-insulating layer, the second sealing layer and the supporting layer are arranged from top to bottom in sequence; the first heat-insulating layer is built by light silica bricks, the first sealing layer is made of ceramic fiber products, the second heat-insulating layer is built by bricks, the second sealing layer is a metal steel plate, and the supporting layer is built by bricks.
2. The heat recovery coke oven lower portion insulation structure of claim 1, wherein: the ceramic fiber product is one or more of a ceramic fiber blanket, a ceramic fiber felt and ceramic fiber paper.
3. The heat recovery coke oven lower portion insulation structure of claim 1, wherein: the second heat-insulating layer is built by one or more of clay bricks, floating bead bricks and heat-insulating bricks.
4. The heat recovery coke oven lower portion insulation structure of claim 1, wherein: the second sealing layer is made of a metal thin steel plate with the thickness of 0.5-3 mm and is paved from the center of the coke oven to the periphery in a pressed joint mode.
5. The heat recovery coke oven lower portion insulation structure of claim 1, wherein: the supporting layer is built by red brick walls and overhead clay bricks at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210549111.2A CN115161040A (en) | 2022-05-20 | 2022-05-20 | Heat recovery coke oven lower part insulation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210549111.2A CN115161040A (en) | 2022-05-20 | 2022-05-20 | Heat recovery coke oven lower part insulation construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115161040A true CN115161040A (en) | 2022-10-11 |
Family
ID=83483470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210549111.2A Pending CN115161040A (en) | 2022-05-20 | 2022-05-20 | Heat recovery coke oven lower part insulation construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115161040A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204079876U (en) * | 2014-07-08 | 2015-01-07 | 赛鼎工程有限公司 | A kind of coke oven regenerator sealing wall of damascene structures |
| CN107795976A (en) * | 2016-08-31 | 2018-03-13 | 鞍钢股份有限公司 | Lining building structure and building method for inlet flue of coke dry quenching waste heat boiler |
| CN109679667A (en) * | 2019-01-17 | 2019-04-26 | 中冶焦耐(大连)工程技术有限公司 | A kind of heat recovery coke oven lower part quirk bottom cooling and insulating structure |
| CN209260012U (en) * | 2018-10-19 | 2019-08-16 | 北京首钢国际工程技术有限公司 | A kind of coke oven regenerator sealing wall insulation construction |
| CN217781058U (en) * | 2022-05-20 | 2022-11-11 | 中冶焦耐(大连)工程技术有限公司 | Heat recovery coke oven lower part insulation construction |
-
2022
- 2022-05-20 CN CN202210549111.2A patent/CN115161040A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204079876U (en) * | 2014-07-08 | 2015-01-07 | 赛鼎工程有限公司 | A kind of coke oven regenerator sealing wall of damascene structures |
| CN107795976A (en) * | 2016-08-31 | 2018-03-13 | 鞍钢股份有限公司 | Lining building structure and building method for inlet flue of coke dry quenching waste heat boiler |
| CN209260012U (en) * | 2018-10-19 | 2019-08-16 | 北京首钢国际工程技术有限公司 | A kind of coke oven regenerator sealing wall insulation construction |
| CN109679667A (en) * | 2019-01-17 | 2019-04-26 | 中冶焦耐(大连)工程技术有限公司 | A kind of heat recovery coke oven lower part quirk bottom cooling and insulating structure |
| CN217781058U (en) * | 2022-05-20 | 2022-11-11 | 中冶焦耐(大连)工程技术有限公司 | Heat recovery coke oven lower part insulation construction |
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