CN210070551U - Special furnace lining for ultra-high temperature electric arc furnace - Google Patents
Special furnace lining for ultra-high temperature electric arc furnace Download PDFInfo
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- CN210070551U CN210070551U CN201920071832.0U CN201920071832U CN210070551U CN 210070551 U CN210070551 U CN 210070551U CN 201920071832 U CN201920071832 U CN 201920071832U CN 210070551 U CN210070551 U CN 210070551U
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Abstract
The utility model relates to a high temperature resistant furnace lining, in particular to a special furnace lining for an ultra-high temperature electric arc furnace. Most of furnace lining structures in the prior art adopt aluminum silicate folding block structures, and when the furnace lining structures are used for a long time, the furnace lining can shrink, and a resistance heater hung on the furnace lining is easy to fall off, so that the heater is short-circuited, and the service life of the furnace lining is shortened. To the defect that exists among the prior art, the utility model provides a special furnace wall. The utility model discloses a special furnace lining for ultra-high temperature electric arc furnace includes aluminum silicate fiber composite sheet, ceramic fiber board, steel ring, fastener, heater and ceramic fiber post, and aluminum silicate fiber composite sheet and ceramic fiber board pass through steel ring fixed connection, are provided with ceramic fiber post on the ceramic fiber board inner wall and pass through the fastener fixed, and the heater dress is inside ceramic fiber post. The utility model discloses rational in infrastructure, it is energy-conserving high-efficient, can effectively solve under the current furnace lining structure, the short problem of furnace lining life, economic and social are showing.
Description
Technical Field
The utility model relates to a high temperature resistant furnace lining, in particular to a special furnace lining for an ultra-high temperature electric arc furnace.
Background
The lining is the wall of a furnace used for refining metals. Is mostly made of high temperature resistant ceramics. The blast furnace lining is built by refractory bricks, and the adopted refractory bricks have different materials and properties due to different working conditions of the linings of all parts. For example, the middle-upper furnace lining of the furnace body is mainly considered to be wear-resistant, the lower part and the furnace waist of the furnace body are mainly considered to be resistant to thermal shock damage and corrosion of alkali metal, the furnace abdomen is mainly considered to be resistant to the corrosion of primary slag of high-ferrous oxide, and the furnace hearth and the furnace bottom are mainly considered to be resistant to mechanical scouring of molten iron and differential thermal expansion of refractory bricks. In the existing electric furnace manufacturers, the furnace lining structure mostly adopts an aluminum silicate folding block structure, and when the structure is used for a long time, the furnace lining can be contracted, and a resistance heater hung on the furnace lining is easy to fall off, so that the short circuit of a heater in an upper circuit and a heater in a lower circuit is caused. Therefore, the research and development of a special furnace lining which is convenient to install, can avoid short circuit of the upper heater and the lower heater, and has long service life, low cost and good performance is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming prior art's defect, the utility model aims at providing an ultra-high temperature is special furnace lining for electric arc furnace, can effectively solve among the prior art because the furnace lining shrink causes the heater to warp or drop to influence electric arc furnace work and reduce electric arc furnace life's problem.
The technical scheme of the utility model is that the special furnace lining structure is composed of an aluminum silicate fiber composite board and a ceramic fiber board, and the aluminum silicate fiber composite board and the ceramic fiber board are fixedly connected through a steel ring; the side wall of the ceramic fiber plate is provided with a ceramic fiber column and fixed on the inner wall of the ceramic fiber plate through a fastener, and the heater is arranged inside the ceramic fiber column.
The utility model discloses simple to operate, energy-concerving and environment-protective can effectively solve among the prior art because the furnace lining shrink causes the heater to warp or drop to influence electric arc furnace work and reduce electric arc furnace life's problem, improved electric arc furnace's work efficiency greatly, economy and social are showing.
Drawings
Fig. 1 is a top view of the structure of the present invention.
Fig. 2 is a longitudinal sectional view of the structure of the present invention.
Fig. 3 is a schematic structural view of the fastener of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1-3, the utility model discloses an aluminum silicate fiber composite sheet 1, ceramic fiber board 2, steel ring 3, ceramic fiber post 4, fastener 5 and heater 6, aluminum silicate fiber composite sheet 1 and ceramic fiber board 2 pass through steel ring 3 fixed connection, are provided with ceramic fiber post 4 on ceramic fiber board 2's the lateral wall and fix on ceramic fiber board 2's inner wall through fastener 5, and heater 6 installs the inside at ceramic fiber post 4.
In order to ensure the using effect and the convenient installation,
the aluminum silicate fiber composite board 1 and the ceramic fiber board 2 are connected by welding, and the aluminum silicate fiber composite board 1, the ceramic fiber board 2 and the steel ring 3 are fixedly connected by welding.
The aluminum silicate fiber composite board 1 and the ceramic fiber board 2 are both circular rings.
The steel ring 3 is square on three sides and circular on one side, and the steel ring 3, the aluminum silicate fiber composite board 1 and the ceramic fiber board 2 are fixedly connected through welding.
The ceramic fiber column 4 is prismatic, three surfaces of which are rectangular and one surface of which is arc-shaped.
The side wall of the ceramic fiber plate 2 is provided with a ceramic fiber column 4 and fixed on the inner wall of the ceramic fiber plate 2 through a fastener 5, and a heater 6 is arranged inside the ceramic fiber column 4.
The fastening piece 5 is clamped on the ceramic fiber column 4 like a clamp, and the connection between the fastening piece 5 and the inner wall of the ceramic fiber plate 2 is completed by welding.
Compared with the prior art, the utility model following beneficial technological effect has:
1. the aluminum silicate fiber composite board 1 and the ceramic fiber board 2 are both circular rings, so that heat transfer and heat conduction are more uniform, and the heating effect is better.
2. The steel ring 3 is square on three sides, one side is arc-shaped, the steel ring 3, the aluminum silicate fiber composite board 1 and the ceramic fiber board 2 are fixedly connected through welding, and the aluminum silicate fiber composite board 1 and the ceramic fiber board 2 are tightly connected and are not easy to leak.
3. Ceramic fiber post 4 is prismatic, and wherein trilateral is the rectangle, and one side is convex, treats that the heating material is heated more evenly, and the heating effect is better.
4. Be provided with ceramic fiber post 4 on ceramic fiber plate 2's the lateral wall and fix on ceramic fiber plate 2's inner wall through fastener 5, heater 6 is installed in ceramic fiber post 4's inside, and the heat that heater 6 produced passes to the furnace chamber through ceramic fiber post 4, and the design like this, heat transmission is more even, and heating effect is better, treats that the heating material is heated evenly, has reduced the stimulation of the inequality of being heated to the furnace wall, has increased the life of furnace wall. The heater 6 is arranged in the ceramic fiber column 4, so that the damage of direct corrosion and the like of the heater 6 caused by the material to be heated is avoided.
The utility model discloses in the aspect of structural design, fully adopted the knowledge of heat transfer science, engineering thermodynamics, burning science, the comprehensive consideration, structural design is reasonable, has both improved heat availability factor, has practiced thrift the energy, has reached increase furnace wall life's purpose again. The method is safe and practical, is an innovation in furnace lining technology for the ultra-high temperature electric arc furnace, and has good economic and ecological benefits.
However, the applicant should note that the above-mentioned structure is only used as an implementation for explaining the specific embodiments of the present invention, and not for limiting the present invention, and any equivalent substitution and modification made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a special furnace lining for ultra-high temperature electric arc furnace, includes aluminium silicate fiber composite sheet (1), ceramic fiber board (2), steel ring (3), ceramic fiber post (4), fastener (5) and heater (6), its characterized in that: the aluminum silicate fiber composite board is characterized in that the aluminum silicate fiber composite board (1) and the ceramic fiber board (2) are fixedly connected through a steel ring (3), a ceramic fiber column (4) is arranged on the side wall of the ceramic fiber board (2) and fixed on the inner wall of the ceramic fiber board (2) through a fastener (5), and the heater (6) is installed inside the ceramic fiber column (4).
2. The special lining for the ultra-high temperature electric arc furnace according to claim 1, characterized in that: the connection between the aluminum silicate fiber composite board (1) and the ceramic fiber board (2) is completed by welding, and the fixed connection of the aluminum silicate fiber composite board (1), the ceramic fiber board (2) and the steel ring (3) is also completed by welding.
3. The special lining for the ultra-high temperature electric arc furnace according to claim 1, characterized in that: the aluminum silicate fiber composite board (1) and the ceramic fiber board (2) are both circular rings, so that heat transfer and heat conduction are more uniform, and the heating effect is better.
4. The special lining for the ultra-high temperature electric arc furnace according to claim 1, characterized in that: the steel ring (3) is square on three sides and arc on one side, the steel ring (3), the aluminum silicate fiber composite board (1) and the ceramic fiber board (2) are fixedly connected through welding, and the aluminum silicate fiber composite board (1) and the ceramic fiber board (2) are tightly connected and are not easy to leak.
5. The special lining for the ultra-high temperature electric arc furnace according to claim 1, characterized in that: the appearance of ceramic fiber post (4) is prismatic, and wherein trilateral is the rectangle, and one side is arc, treats that the heating material is heated more evenly, and the heating effect is better.
6. The special lining for the ultra-high temperature electric arc furnace according to claim 1, characterized in that: the ceramic fiber column (4) is clamped by the fastening piece (5), and the connection between the fastening piece (5) and the inner wall of the ceramic fiber plate (2) is completed by welding.
7. The special lining for the ultra-high temperature electric arc furnace according to claim 1, characterized in that: the inner wall of the ceramic fiber plate (2) is provided with a ceramic fiber column (4) and is fixed on the inner wall of the ceramic fiber plate (2) through a fastener (5), the heater (6) is installed inside the ceramic fiber column (4), and heat generated by the heater (6) is transmitted into the furnace cavity through the ceramic fiber column (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920071832.0U CN210070551U (en) | 2019-01-16 | 2019-01-16 | Special furnace lining for ultra-high temperature electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920071832.0U CN210070551U (en) | 2019-01-16 | 2019-01-16 | Special furnace lining for ultra-high temperature electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210070551U true CN210070551U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920071832.0U Active CN210070551U (en) | 2019-01-16 | 2019-01-16 | Special furnace lining for ultra-high temperature electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210070551U (en) |
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2019
- 2019-01-16 CN CN201920071832.0U patent/CN210070551U/en active Active
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Address after: 452370 No. 1, Jinghua Avenue, Dongdian village, Chaohua Town, Xinmi City, Zhengzhou City, Henan Province Patentee after: Henan ruitaike Industrial Group Co.,Ltd. Address before: 452370 No. 1, Jinghua Avenue, Dongdian village, Chaohua Town, Xinmi City, Zhengzhou City, Henan Province Patentee before: Henan Ruitake Industrial Co.,Ltd. |