CN2457544Y - Smelting furnace for silicon carbide - Google Patents
Smelting furnace for silicon carbide Download PDFInfo
- Publication number
- CN2457544Y CN2457544Y CN 00266045 CN00266045U CN2457544Y CN 2457544 Y CN2457544 Y CN 2457544Y CN 00266045 CN00266045 CN 00266045 CN 00266045 U CN00266045 U CN 00266045U CN 2457544 Y CN2457544 Y CN 2457544Y
- Authority
- CN
- China
- Prior art keywords
- furnace
- furnace bottom
- smelting furnace
- silicon carbide
- sic smelting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model relates to a smelting furnace for silicon carbide, which comprises a furnace head, electrodes, furnace walls and a furnace bottom. The utility model is characterized in that the cross-section of the furnace bottom presents a trapezoid, or a U shape, or a triangle; the outer side of the furnace bottom is provided with a burning chamber for carbon monoxide, the bottom of the furnace body is provided with an air inlet passage, and the furnace body is also provided with an air outlet. The structure enhances the ventilation property of the furnace bottom, can heat furnace basic charges by utilizing the carbon monoxide at the bottom to combust heat energy, and therefore, the smelting furnace for silicon carbide can avoid peaks to smelt, which is favorable for electrical energy of an electric network to be reasonably used. When power is off in the process of avoiding peaks, the heated furnace basic charges can lead the temperature in the smelting furnace to be reduced slowly, electrical energy is saved, the price of electricity is lowered, and therefore, the cost is reduced.
Description
The utility model relates to a kind of sic smelting furnace.
The furnace bottom of former sic smelting furnace is a plane, and body of heater is to surround the square type by furnace wall and burner, and this sic smelting furnace furnace bottom does not have gas permeability, and the CO gas that smelt to generate can only burn outward by the furnace wall that the bottom insulation material is discharged to the body of heater both sides.Because of the bottom insulation material becomes rectangle, smelt the CO gas that generates and to arrive outside the furnace wall, therefore by very thick bottom insulation material again, it is poor to form smelting furnace bottom permeability, make smelting furnace bottom reaction condition variation, cause bottom carborundum to yield poorly shortcomings such as poor product quality.
The purpose of this utility model is a kind of raising furnace bottom gas permeability of design, and can utilize bottom CO gas combustion heat energy, comes the sic smelting furnace of heating furnace bed material.
The technical solution of the utility model is:
This sic smelting furnace comprises burner, electrode, furnace wall and furnace bottom, and the cross section of furnace bottom is trapezoidal, U-shaped or triangle, and the furnace bottom outside is provided with the CO gas combustion chamber, and the bottom is provided with into air duct, and furnace bottom also is provided with steam vent.
The utility model can make sic smelting furnace keep away the peak smelting, helps the reasonable use of electrical network electric energy.When keeping away the peak power failure, the furnace burdening of heating can make the temperature in the smelting furnace slowly reduce, and has saved electric energy, has reduced electricity price simultaneously, therefore, has reduced production cost.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model external structure schematic diagram.
Fig. 2 is the utility model internal structure cutaway view.
Embodiment 1:
A kind of sic smelting furnace, comprise burner, electrode, more piece activity furnace wall and furnace bottom, and the material district that they surrounded, the cross section of furnace bottom in echelon, whole furnace bottom becomes grooved, the outside, the both sides of trapezoidal furnace bottom 3 is provided with CO gas combustion chamber 8, the bottom is provided with the into passage 4 of air, advance air duct 4 and communicate with CO gas combustion chamber 8, furnace bottom 3 is provided with steam vent, and becomes notch cuttype.The outer height of furnace bottom 3 is 1/3 of burner 2 height.The furnace bottom 3 on trapezoidal both sides is 40 ° with the angle of horizontal bottom, the CO gas combustion chamber in furnace bottom 3 outsides on trapezoidal both sides and advance air duct 4 and do not communicate.Smelting furnace wall 7 is to be formed by centre fire-resistant brick system with holes, and furnace wall 7 is to be fixed by refractory concrete post or iron and steel supporting leg.
Embodiment 2:
A kind of sic smelting furnace, comprise burner, electrode, more piece activity furnace wall and furnace bottom, and the material district that they surrounded, the cross section of furnace bottom becomes U-shaped, and whole furnace bottom becomes grooved, and the outside, both sides of U-shaped furnace bottom 3 is provided with CO gas combustion chamber 8, the bottom is provided with the into passage 4 of air, advance air duct 4 and communicate with CO gas combustion chamber 8, furnace bottom 3 is provided with steam vent, and becomes notch cuttype.The outer height of furnace bottom 3 is 1/2 of burner 2 height.The furnace bottom 3 on U-shaped both sides is 30 ° with the angle of horizontal bottom, the CO gas combustion chamber in furnace bottom 3 outsides on trapezoidal both sides and advance air duct 4 and communicate.Smelting furnace wall 7 is to be formed by centre fire-resistant brick system with holes, and furnace wall 7 is to be fixed by refractory concrete post or iron and steel supporting leg.
Embodiment 3:
A kind of sic smelting furnace, comprise burner, electrode, more piece activity furnace wall and furnace bottom, and the material district that they surrounded, the cross section triangularity of furnace bottom, whole furnace bottom becomes grooved, and the outside, both sides of triangle furnace bottom 3 is provided with CO gas combustion chamber 8, the bottom is provided with the into passage 4 of air, advance air duct 4 and communicate with CO gas combustion chamber 8, furnace bottom 3 is provided with steam vent, and becomes notch cuttype.The outer height of furnace bottom 3 is 1/3 of burner 2 height.The furnace bottom 3 on triangle both sides is 50 ° with the angle of horizontal bottom, the CO gas combustion chamber in furnace bottom 3 outsides on trapezoidal both sides and advance air duct 4 and do not communicate.Smelting furnace wall 7 is to be formed by centre fire-resistant brick system with holes, and furnace wall 7 is to be fixed by refractory concrete post or iron and steel supporting leg.
Claims (6)
1. sic smelting furnace, comprise burner, electrode, furnace wall and furnace bottom, the cross section that it is characterized in that furnace bottom (3) is trapezoidal, U-shaped or triangle, and furnace bottom (3) outside is provided with CO gas combustion chamber (8), the bottom is provided with into air duct (4), and furnace bottom (3) also is provided with steam vent.
2. sic smelting furnace as claimed in claim 1, the height that it is characterized in that furnace bottom (3) both sides are burner (2) height 1/4--1/2.
3. sic smelting furnace as claimed in claim 1, the angle that it is characterized in that furnace bottom (3) both sides and ground is 30 °--50 °.
4. sic smelting furnace as claimed in claim 1 is characterized in that the both sides of furnace bottom (3) become stairstepping.
5. sic smelting furnace as claimed in claim 1 is characterized in that the furnace wall (7) above the furnace bottom (3) is to be formed by centre fire-resistant brick system with holes.
6. sic smelting furnace as claimed in claim 5 is characterized in that furnace wall (7) is to be fixed by refractory concrete post or iron and steel supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266045 CN2457544Y (en) | 2000-12-19 | 2000-12-19 | Smelting furnace for silicon carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266045 CN2457544Y (en) | 2000-12-19 | 2000-12-19 | Smelting furnace for silicon carbide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2457544Y true CN2457544Y (en) | 2001-10-31 |
Family
ID=33620228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00266045 Expired - Fee Related CN2457544Y (en) | 2000-12-19 | 2000-12-19 | Smelting furnace for silicon carbide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2457544Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337673B (en) * | 2007-07-05 | 2011-07-20 | 贾玉东 | Refining furnace of silicon carbide for recovering smelting waste gases |
| CN103757703B (en) * | 2014-01-24 | 2016-08-24 | 汪长安 | A kind of High-purity large-size silicon carbide single crystal and preparation technology thereof |
| CN113428863A (en) * | 2021-07-27 | 2021-09-24 | 宁夏和兴碳基材料有限公司 | Energy-saving preparation method for silicon carbide smelting and energy-saving smelting furnace |
-
2000
- 2000-12-19 CN CN 00266045 patent/CN2457544Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337673B (en) * | 2007-07-05 | 2011-07-20 | 贾玉东 | Refining furnace of silicon carbide for recovering smelting waste gases |
| CN103757703B (en) * | 2014-01-24 | 2016-08-24 | 汪长安 | A kind of High-purity large-size silicon carbide single crystal and preparation technology thereof |
| CN113428863A (en) * | 2021-07-27 | 2021-09-24 | 宁夏和兴碳基材料有限公司 | Energy-saving preparation method for silicon carbide smelting and energy-saving smelting furnace |
| CN113428863B (en) * | 2021-07-27 | 2024-10-01 | 宁夏和兴碳基材料有限公司 | Energy-saving preparation method for silicon carbide smelting and energy-saving smelting furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |