CN203053229U - Aluminum carbon light heat-insulation brick furnace bottom used for large calcium carbide furnace - Google Patents
Aluminum carbon light heat-insulation brick furnace bottom used for large calcium carbide furnace Download PDFInfo
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- CN203053229U CN203053229U CN 201320013988 CN201320013988U CN203053229U CN 203053229 U CN203053229 U CN 203053229U CN 201320013988 CN201320013988 CN 201320013988 CN 201320013988 U CN201320013988 U CN 201320013988U CN 203053229 U CN203053229 U CN 203053229U
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- furnace
- bricks
- brick
- calcium carbide
- furnace bottom
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Abstract
Provided is an aluminum carbon light heat-insulation brick furnace bottom used for a large calcium carbide furnace. The furnace bottom is formed from bottom to top by the sequential practices that an asbestos plate is laid on the lowest layer of the calcium carbide furnace, clay bricks are built on the upper portion of the asbestos plate, high-aluminum bricks are built on upper portions of the clay bricks, aluminum carbon light heat-insulation bricks are built on upper portions of the high-aluminum bricks, and low porosity carbon bricks are built on the uppermost portion of the furnace bottom. By means of application of low-heat-conduction materials, use temperatures of the high-aluminum bricks and the clay bricks on the furnace bottom are reduced, refractory bricks on the furnace bottom are no longer deformed, melted iron no longer leaks into gaps of the carbon bricks, the occasions that the furnace bottom of the calcium carbide furnace is burnt red and even burnt through are completely avoided, by means of good heat-insulation performance of the aluminum carbon light heat-insulation bricks, the furnace box temperature is improved, energy is greatly saved, therefore service life of a furnace liner of the calcium carbide furnace is prolonged from 3-5 years to 7-8 years, and a large amount of maintenance cost is saved.
Description
Technical field
The utility model belongs to furnace of calcium carbide furnace lining technical field, relates in particular to a kind of large-scale furnace of calcium carbide, uses the furnace lining new technology.
Background technology
In furnace of calcium carbide furnace lining structure in the past, the design of furnace bottom is ramming one deck refractory concrete on the furnace bottom furnace foundation, build five layers of clay brick and six to seven layers of high-alumina brick, build three layers of self-baked charcoal brick or schungite brick fuel (the also block one deck light carbon brick between brick fuel and high-alumina brick that has above the high-alumina brick, but result of use is not good), this furnace bottom design in actual use, because brick fuel has good thermal conductivity, high-alumina brick below the brick fuel and clay brick are in the overload operation for a long time, cause high-alumina brick and clay brick generation deformation, cause top brick fuel displacement, make molten iron along infiltrating furnace bottom under the brick fuel puzzle joint, cause steel plate of furnace hearth rubescent, even the generation of burn-through of furnace hearth accident.
The utility model content
Technical problem to be solved in the utility model is that to stop the furnace of calcium carbide steel plate of furnace hearth rubescent and burn the generation of accident, thereby provides a kind of large-scale furnace of calcium carbide with aluminium carbon lightweight thermal insulation brick furnace bottom.
In order to address the above problem by the following technical solutions: a kind of large-scale furnace of calcium carbide aluminium carbon lightweight thermal insulation brick furnace bottom, described furnace bottom is followed successively by from top to bottom at the furnace of calcium carbide orlop and lays asbestos board, block has clay brick on asbestos board top, block has high-alumina brick on clay brick top, block has aluminium carbon lightweight thermal insulation brick on high-alumina brick top, and topmost is built low pore brick fuel.
At 1 ~ 2 layer of asbestos board in furnace of calcium carbide orlop shop, build 5 layers of clay brick on asbestos board top, build 6 ~ 7 layers of high-alumina brick on clay brick top, build 1 layer of aluminium carbon lightweight thermal insulation brick on high-alumina brick top, topmost is built 2 layers low pore brick fuels.
The utility model is by the application of low Heat Conduction Material, furnace bottom high-alumina brick, clay brick serviceability temperature have been reduced, furnace bottom refractory brick is no longer deformed, molten iron no longer infiltrates the brick fuel slit, has thoroughly solved the generation that the furnace of calcium carbide furnace bottom is rubescent, burn accident, and utilizes aluminium carbon lightweight thermal insulation brick heat insulating ability preferably, improved fire box temperature, save energy greatly, thereby made the life-span of furnace of calcium carbide furnace lining extend to 7-8 by 3-5, and saved a large amount of maintenance costs.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of large-scale furnace of calcium carbide aluminium carbon lightweight thermal insulation brick furnace bottom, described furnace bottom is followed successively by from top to bottom at 1 ~ 2 layer of asbestos board 1 in furnace of calcium carbide orlop shop, build 5 layers of clay brick 2 on asbestos board 1 top, build 6 ~ 7 layers of high-alumina brick 3 on clay brick 2 tops, build 1 layer of aluminium carbon lightweight thermal insulation brick 4 on high-alumina brick 3 tops, topmost is built 2 layers low pore brick fuels 5.
Described aluminium carbon lightweight thermal insulation brick is mainly formed by the feedstock production of following weight portion: 30 parts of the metallurgical cokes of 8-3mm, 16 parts of the metallurgical cokes of 3-0mm, 22 parts of＜0.088mm metallurgical cokes, 10 parts of＜0.5mm alumina hollow balls,＜0.5mm floats 4 parts on pearl, 3 parts in＜1mm polystyrene foam ball, 15 parts in phenolic resins.
The preparation method is as follows: with above raw material under normal temperature environment, stir, vibration moulding, burn till through 1250 ℃ of high temperature again after 200 ℃ of bakings, then the correct grinding process.
Claims (2)
1. one kind large-scale furnace of calcium carbide is with aluminium carbon lightweight thermal insulation brick furnace bottom, it is characterized in that: described furnace bottom is followed successively by from top to bottom at the furnace of calcium carbide orlop and lays asbestos board, block has clay brick on asbestos board top, block has high-alumina brick on clay brick top, block has aluminium carbon lightweight thermal insulation brick on high-alumina brick top, and topmost is built low pore brick fuel.
2. large-scale furnace of calcium carbide according to claim 1 is with aluminium carbon lightweight thermal insulation brick furnace bottom, it is characterized in that: at 1 ~ 2 layer of asbestos board in furnace of calcium carbide orlop shop, build 5 layers of clay brick on asbestos board top, build 6 ~ 7 layers of high-alumina brick on clay brick top, build 1 layer of aluminium carbon lightweight thermal insulation brick on high-alumina brick top, topmost is built 2 layers low pore brick fuels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013988 CN203053229U (en) | 2013-01-11 | 2013-01-11 | Aluminum carbon light heat-insulation brick furnace bottom used for large calcium carbide furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013988 CN203053229U (en) | 2013-01-11 | 2013-01-11 | Aluminum carbon light heat-insulation brick furnace bottom used for large calcium carbide furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203053229U true CN203053229U (en) | 2013-07-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320013988 Expired - Lifetime CN203053229U (en) | 2013-01-11 | 2013-01-11 | Aluminum carbon light heat-insulation brick furnace bottom used for large calcium carbide furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203053229U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471397A (en) * | 2013-09-26 | 2013-12-25 | 福建乾达重型机械有限公司 | Furnace bottom brick seat structure of step heating furnace |
| CN108225026A (en) * | 2018-02-09 | 2018-06-29 | 攀钢集团攀枝花钢钒有限公司 | It carbonization electric furnace body structure and its builds by laying bricks or stones and maintaining method |
| CN112923731A (en) * | 2021-02-06 | 2021-06-08 | 江西铜业集团(贵溪)冶金化工工程有限公司 | Local maintenance method for flash furnace bottom bricks |
-
2013
- 2013-01-11 CN CN 201320013988 patent/CN203053229U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471397A (en) * | 2013-09-26 | 2013-12-25 | 福建乾达重型机械有限公司 | Furnace bottom brick seat structure of step heating furnace |
| CN103471397B (en) * | 2013-09-26 | 2015-03-04 | 福建乾达重型机械有限公司 | Furnace bottom brick seat structure of step heating furnace |
| CN108225026A (en) * | 2018-02-09 | 2018-06-29 | 攀钢集团攀枝花钢钒有限公司 | It carbonization electric furnace body structure and its builds by laying bricks or stones and maintaining method |
| CN112923731A (en) * | 2021-02-06 | 2021-06-08 | 江西铜业集团(贵溪)冶金化工工程有限公司 | Local maintenance method for flash furnace bottom bricks |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |