CN211953698U - Furnace cover of brown corundum smelting furnace - Google Patents
Furnace cover of brown corundum smelting furnace Download PDFInfo
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- CN211953698U CN211953698U CN201922368954.9U CN201922368954U CN211953698U CN 211953698 U CN211953698 U CN 211953698U CN 201922368954 U CN201922368954 U CN 201922368954U CN 211953698 U CN211953698 U CN 211953698U
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- smelting furnace
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- heat preservation
- brown corundum
- bell body
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Abstract
The utility model discloses a brown corundum smelting furnace bell, including setting up the bell body on the smelting furnace, the bell body includes from inside to outside high temperature resistant layer, thermal-insulated heat preservation and the protecting sheathing that sets gradually, a plurality of jacks have still been seted up to the bell body, it has resistant firebrick to paste on the smelting furnace inner wall. This application is at the application in-process, the heat is at first thermal-insulated through the heat preservation on high temperature resistant layer on the bell body, the heat that makes the heat that reachs thermal-insulated heat preservation reduces, thereby reduce the thermal shock that thermal-insulated heat preservation received, and then be convenient for to the protection of thermal-insulated heat preservation, the heat is through the thermal-insulated heat preservation of thermal-insulated heat preservation, it reachs the protecting sheathing heat to reduce, thereby further reduce protecting sheathing's temperature, the temperature that makes the protecting sheathing outside falls to the temperature that personnel's operating personnel can accept, thereby be convenient for installation and the normal operating of bell body upper part, the normal operating of operating personnel on the bell body of also being.
Description
Technical Field
The utility model relates to a brown corundum smelts technical field, in particular to brown corundum smelting furnace bell.
Background
The brown fused alumina is prepared by using bauxite and coke (anthracite) as main raw materials and smelting the main raw materials in an electric arc furnace at high temperature; the brown corundum has the characteristics of high purity, good crystallization, strong fluidity, low linear expansion coefficient and corrosion resistance. When smelting brown corundum, a smelting furnace is needed to heat corresponding raw materials to a molten state at thousands of ℃; therefore, the temperature inside the smelting furnace is quite high, so that the temperature on a furnace cover (a furnace cover) is quite high, and the installation and operation of corresponding equipment on the furnace cover and the activity occupation operation of personnel are inconvenient; in the prior art, the furnace cover is mainly cooled by arranging a cooling water system inside the furnace cover when the brown corundum is smelted, and the cooling water in the mode can take away a large amount of heat when the furnace cover is used for cooling, so that the energy loss is increased; thereby increasing the smelting cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a furnace cover of a brown corundum smelting furnace, which can isolate the high temperature inside the smelting furnace, ensure the normal installation and operation of equipment on the furnace cover and facilitate the occupation operation of personnel; meanwhile, the heat in the smelting furnace is prevented from being taken away, the energy loss is reduced, and the operation cost is reduced.
In order to solve the technical problem, the utility model discloses a scheme does:
the utility model provides a brown corundum smelting furnace bell, is including setting up the bell body on the smelting furnace, the bell body includes from interior to exterior high temperature resistant layer, thermal-insulated heat preservation and the protecting sheathing that sets gradually, a plurality of jacks have still been seted up to the bell body, it has resistant firebrick to paste on the smelting furnace inner wall.
The protective housing downside is provided with a plurality of anchor assembly in the crossing, and a plurality of anchor assembly inlays in proper order and establishes in thermal-insulated heat preservation and resistant high temperature layer.
The refractory bricks are silicon-based refractory bricks with the melting point temperature higher than 2050 ℃.
The high-temperature resistant layer is made of alumina castable with the bearing temperature not lower than 2050 ℃.
The heat insulation layer is an alumina castable layer embedded with a calcium silicate board for heat insulation.
Refractory bricks are adhered to the inner wall of the smelting furnace.
Compared with the prior art, the beneficial effects of the utility model are that:
this application is at the application in-process, the heat is at first thermal-insulated through the heat preservation on high temperature resistant layer on the bell body, the heat that makes the heat that reachs thermal-insulated heat preservation reduces, thereby reduce the thermal shock that thermal-insulated heat preservation received, and then be convenient for to the protection of thermal-insulated heat preservation, the heat is through the thermal-insulated heat preservation of thermal-insulated heat preservation, it reachs the protecting sheathing heat to reduce, thereby further reduce protecting sheathing's temperature, the temperature that makes the protecting sheathing outside falls to the temperature that personnel's operating personnel can accept, thereby be convenient for installation and the normal operating of bell body upper part, the normal operating of operating personnel on the bell body of also being.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-2, a brown corundum smelting furnace bell, including setting up the bell body 2 on smelting furnace 1, bell body 2 includes from inside to outside high temperature resistant layer 3, thermal-insulated heat preservation 4 and the protecting sheathing 5 that sets gradually, a plurality of jacks 6 have still been seted up to bell body 2.
The smelting furnace 1 is mainly used for smelting raw materials of brown corundum, so that the production of the brown corundum is facilitated, the furnace cover body 2 is mainly used for fixing and sealing, the high-temperature-resistant layer 3 is mainly used for bearing and isolating partial high temperature, so that the heat-insulating layer 4 is protected conveniently, the damage of the heat-insulating layer 4 is avoided, and the protective shell 5 is mainly used for bearing and facilitating the installation and fixation of components such as an anchoring part 8 and the like; in the actual application process, the heat insulation layer 4 is arranged to isolate the conduction of a large amount of heat in the furnace, so that on one hand, energy is saved, and the overflow and dissipation waste of heat is reduced; on the other hand, the temperature outside the furnace cover body 2 is recovered to the normal state, so that the installation and the normal work of corresponding equipment on the furnace cover body 2 are facilitated, and meanwhile, the operation of personnel on the furnace cover body 2 is facilitated. The arrangement of the insertion hole 6 is mainly convenient for inserting equipment and facilities required by smelting brown fused alumina.
A plurality of anchoring pieces 8 are arranged on the lower side face of the protective shell 5 in a crossed mode, and the anchoring pieces 8 are sequentially embedded in the heat insulation layer 4 and the high-temperature-resistant layer 3. The anchoring piece 8 is mainly used for facilitating the pouring and fixing of the high-temperature-resistant layer 3 and the heat-insulating layer 4, so that the firmness of the furnace cover body 2 is ensured.
The refractory bricks 7 are silicon-based refractory bricks with the melting point temperature higher than 2050 ℃.
The high temperature resistant layer 3 is made of alumina castable with the bearing temperature not lower than 2050 ℃.
The setting is mainly matched with the setting of the brown corundum calcining temperature, so that the safe calcining of the brown corundum is ensured.
The heat insulation layer 4 is an alumina castable layer embedded with a calcium silicate board for heat insulation.
The calcium silicate board is mainly used for insulating and preserving heat, so that the loss of heat is reduced, and the temperature inside the smelting furnace of the material is normal.
The inner wall of the smelting furnace 1 is adhered with refractory bricks 7; the refractory bricks 7 are mainly used for protecting the furnace wall of the smelting furnace 1 and preventing the furnace wall of the smelting furnace 1 from being damaged due to the bearing of overhigh smelting temperature, thereby prolonging the service life of the smelting furnace 1.
In the in-process of the in-service use, the calcination temperature of the inside brown corundum raw materials of smelting furnace is in about 2000 ℃, 2000 ℃'s temperature in the smelting furnace passes to on the bell body 2, the heat is at first thermal-insulated through the heat preservation of high temperature resistant layer 3 on bell body 2, it reduces to make the heat that reachs thermal-insulated heat preservation 4, thereby reduce the thermal shock that thermal-insulated heat preservation 4 received, and then be convenient for to thermal-insulated heat preservation 4's protection, the heat is through the thermal-insulated heat preservation of thermal-insulated heat preservation 4, reduce and reachs 5 heats of protecting sheathing, thereby further reduce the temperature of protecting sheathing 5, make the temperature in the protecting sheathing 5 outside fall to the temperature that personnel's operating personnel can accept, thereby be convenient for installation and the normal operating of bell body 2 upper part, the normal operating of operating personnel.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (5)
1. The utility model provides a brown corundum smelting furnace bell which characterized in that: including setting up bell body (2) on smelting furnace (1), bell body (2) include from interior and high temperature resistant layer (3), thermal-insulated heat preservation (4) and protecting sheathing (5) that set gradually outward, a plurality of jacks (6) have still been seted up in bell body (2), refractory brick (7) have been pasted to smelting furnace (1) inner wall.
2. The brown corundum smelting furnace cover according to claim 1, characterized in that: a plurality of anchoring pieces (8) are arranged on the lower side face of the protective shell (5) in a crossed mode, and the anchoring pieces (8) are sequentially embedded inside the heat insulation layer (4) and the high-temperature-resistant layer (3).
3. The brown corundum smelting furnace cover according to claim 1, characterized in that: the refractory brick (7) is a silicon-based refractory brick with the melting point temperature higher than 2050 ℃.
4. The brown corundum smelting furnace cover according to claim 1, characterized in that: the high temperature resistant layer (3) is made of alumina castable with the bearing temperature not lower than 2050 ℃.
5. The brown corundum smelting furnace cover according to claim 1, characterized in that: the heat insulation layer (4) is an alumina castable layer embedded with a calcium silicate board for heat insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922368954.9U CN211953698U (en) | 2019-12-26 | 2019-12-26 | Furnace cover of brown corundum smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922368954.9U CN211953698U (en) | 2019-12-26 | 2019-12-26 | Furnace cover of brown corundum smelting furnace |
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| Publication Number | Publication Date |
|---|---|
| CN211953698U true CN211953698U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922368954.9U Active CN211953698U (en) | 2019-12-26 | 2019-12-26 | Furnace cover of brown corundum smelting furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666720A (en) * | 2021-07-26 | 2021-11-19 | 中国铝业股份有限公司 | Furnace cover of continuous ultra-high temperature furnace and castable thereof |
-
2019
- 2019-12-26 CN CN201922368954.9U patent/CN211953698U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666720A (en) * | 2021-07-26 | 2021-11-19 | 中国铝业股份有限公司 | Furnace cover of continuous ultra-high temperature furnace and castable thereof |
| CN113666720B (en) * | 2021-07-26 | 2023-11-28 | 中国铝业股份有限公司 | Continuous ultra-high temperature furnace cover and castable thereof |
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