CN217781058U - Heat recovery coke oven lower part insulation construction - Google Patents
Heat recovery coke oven lower part insulation construction Download PDFInfo
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- CN217781058U CN217781058U CN202221213567.3U CN202221213567U CN217781058U CN 217781058 U CN217781058 U CN 217781058U CN 202221213567 U CN202221213567 U CN 202221213567U CN 217781058 U CN217781058 U CN 217781058U
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Abstract
The utility model relates to a heat recovery coke oven technical field especially relates to a heat recovery coke oven lower part insulation construction. 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 utility model discloses simple structure, the effect is showing, can improve the generated energy, has good economic benefits and environmental benefit.
Description
Technical Field
The utility model relates to a heat recovery coke oven technical field especially relates to a heat recovery coke oven lower part insulation construction.
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 a 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 expected to be 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 is required to be developed to reduce the heat dissipation capacity of the surface of the coke oven.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a heat recovery coke oven lower part heat preservation structure, which further strengthens the sealing performance of the oven body, can effectively reduce the heat loss of the heat recovery coke oven and promotes the heat preservation performance.
In order to achieve the above purpose, the utility model 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 beneficial effects of the utility model are that:
the utility model discloses from top to bottom constitute by first heat preservation, first sealing layer, second heat preservation, second sealing layer and supporting layer in proper order. 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 utility model discloses simple structure, the effect is showing, can improve the generated energy, has good economic benefits and environmental benefit.
Drawings
Fig. 1 is a schematic structural diagram 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 description of the embodiments of the present invention will be made 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 utility model discloses be equipped with two heat preservation and two sealing layers simultaneously, make the furnace body leakproofness further strengthen, can effectively reduce the calorific loss of heat recovery coke oven, promote thermal insulation performance. Still be equipped with supporting layer 5, support firm, improve the stability and the security of structure. The utility model discloses simple structure, the effect is showing, can improve the generated energy, has good economic benefits and environmental benefit.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (3)
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 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.
3. The heat recovery coke oven lower part insulation structure of claim 1, characterized in that: 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 |
|---|---|---|---|
| CN202221213567.3U CN217781058U (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 |
|---|---|---|---|
| CN202221213567.3U CN217781058U (en) | 2022-05-20 | 2022-05-20 | Heat recovery coke oven lower part insulation construction |
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| Publication Number | Publication Date |
|---|---|
| CN217781058U true CN217781058U (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221213567.3U Active CN217781058U (en) | 2022-05-20 | 2022-05-20 | Heat recovery coke oven lower part insulation construction |
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| CN (1) | CN217781058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115161040A (en) * | 2022-05-20 | 2022-10-11 | 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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2022
- 2022-05-20 CN CN202221213567.3U patent/CN217781058U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115161040A (en) * | 2022-05-20 | 2022-10-11 | 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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