CN210922203U - Safe energy-concerving and environment-protective smelting furnace - Google Patents
Safe energy-concerving and environment-protective smelting furnace Download PDFInfo
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- CN210922203U CN210922203U CN201922088216.9U CN201922088216U CN210922203U CN 210922203 U CN210922203 U CN 210922203U CN 201922088216 U CN201922088216 U CN 201922088216U CN 210922203 U CN210922203 U CN 210922203U
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Abstract
The utility model discloses a smelting furnace of safe energy-concerving and environment-protective belongs to smelting equipment technical field. The utility model discloses a smelting furnace of safe energy-concerving and environment-protective, including stove bottom, furnace shaft, furnace top, the furnace shaft includes steel-shell, the cotton layer of alumina silicate fiber, mullite light brick layer, the carbon brick layer that outside-in set gradually. The utility model discloses a safe energy-concerving and environment-protective smelting furnace adopts mullite light brick layer as the heat-resisting material layer of furnace shaft and stove bottom, has not only improved the heat resistance of furnace body, has still avoided smelting furnace working process in the furnace body great shrinkage joint to appear, has improved the homogeneity of being heated of smelting furnace, has improved the smelting effect.
Description
Technical Field
The utility model relates to a smelting equipment technical field, more specifically say, relate to a smelting furnace of safe energy-concerving and environment-protective.
Background
Smelting furnaces require very good high temperature resistance because they require high temperature heating to melt the material in the furnace. Smelting furnaces typically include a furnace top and a furnace body associated therewith, the furnace body including a furnace body and a furnace bottom. Traditional smelting furnace body adopts the steel-shelled manufacturing, sets up the water jacket outside the steel-shelled and cools off, and this kind of mode can lead to a large amount of energy extravagant, burns through easily moreover, and the cooling water gets into the furnace body very easily and leads to the accident.
In order to have good heat resistance, a smelting furnace also adopts a scheme that refractory bricks are used as a furnace body lining, a structure that the heat-resistant linings are arranged in steel shells of a furnace body and a furnace bottom is generally adopted, the heat-resistant linings are made of magnesium-chromium refractory bricks, when the refractory bricks are subjected to high temperature, the volume change is large, large gaps are easy to occur between the refractory bricks, and thus when the smelting furnace works, smelted material molten liquid easily enters the gaps, the furnace is burnt through, the heat insulation effect is poor, and the smelting effect is further influenced.
SUMMERY OF THE UTILITY MODEL
To the deficiency that prior art exists, the utility model aims to provide a smelting furnace of thermal-insulated effectual safe energy-concerving and environment-protective.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a smelting furnace of safe energy-concerving and environment-protective, includes furnace roof, shaft, stove bottom, the shaft includes shaft box hat, the cotton layer of shaft alumina silicate fiber, shaft mullite light brick layer, the shaft carbon brick layer that outside-in set gradually.
By adopting the technical scheme, the furnace body of the smelting furnace adopts the mullite light brick layer as the refractory material layer, has good heat insulation and high temperature resistance effects, avoids the problem that the furnace body needs to be cooled in the traditional smelting furnace, and greatly saves energy. And the mullite light brick layer has a smaller expansion coefficient, is not easy to be influenced by high temperature to form larger brick joints in the working process, improves the heat insulation effect of the smelting furnace, and also ensures that materials in the smelting furnace are heated more uniformly, and is safer and more environment-friendly.
The utility model discloses further set up to: the furnace bottom comprises a furnace bottom steel shell, a first furnace bottom alumina silicate fiber cotton layer, a first furnace bottom mullite light brick layer, a furnace bottom alumina ceramic fiber layer and a furnace bottom carbon brick layer which are sequentially arranged from outside to inside.
By adopting the technical scheme, the furnace bottom is also provided with the mullite light brick layer as the refractory material layer, so that the furnace body has good high-temperature resistance effect on the whole. In addition, the aluminum silicate fiber cotton is generally prepared by melting and blowing hard clay serving as a raw material, the highest temperature which can be endured by the aluminum silicate fiber cotton is generally below 800 ℃, some aluminum silicate fiber cotton can only endure the high temperature of 500-600 ℃, and when a molten material in a smelting furnace seeps into an aluminum silicate fiber layer, the phenomenon of thorough burning still cannot be avoided. An alumina ceramic fiber layer is arranged between the mullite light brick layer and the carbon brick layer at the bottom of the furnace, so that the furnace has higher high temperature resistance, the high temperature resistance can reach more than 1800 ℃, and materials can be fully separated.
The utility model discloses further set up to: and a second furnace bottom alumina silicate fiber cotton layer and a second furnace bottom mullite light brick layer are sequentially arranged from outside to inside between the first furnace bottom mullite light brick layer and the furnace bottom alumina ceramic fiber layer.
By adopting the technical scheme, the aluminum silicate fiber cotton layer and the mullite light brick layer are arranged between the mullite light brick layer and the alumina ceramic fiber layer at the bottom of the furnace, so that the bottom of the furnace can be reinforced, the heat resistance of the bottom of the furnace can be enhanced, and the smelting materials can be prevented from permeating downwards in the operation process of the smelting furnace.
The utility model discloses further set up to: and a first furnace bottom magnesium ramming material layer is arranged between the first furnace bottom mullite light brick layer and the second furnace bottom alumina silicate fiber cotton layer.
By adopting the technical scheme, the magnesium ramming material layer is arranged on the mullite light brick layer, so that the magnesium ramming material can enter brick joints among the mullite light brick layers, and the heat-insulating property of the mullite light brick layers is further improved.
The utility model discloses further set up to: and a furnace body alumina ceramic fiber layer is arranged between the furnace body mullite light brick layer and the furnace body carbon brick layer.
By adopting the technical scheme, the alumina ceramic fiber layer is arranged between the mullite light brick layer and the carbon brick layer of the furnace body, so that the high-temperature resistance limit of the furnace body can be improved.
The utility model discloses further set up to: a furnace body magnesium ramming material layer is arranged between the furnace body mullite light brick layer and the furnace body alumina ceramic fiber layer.
By adopting the technical scheme, the magnesium ramming material layer is arranged on the mullite light brick layer of the furnace body, so that the magnesium ramming material can enter brick joints between the mullite light brick layers, and the heat-insulating property of the mullite light brick layer of the furnace body is improved.
The utility model discloses further set up to: the furnace body alumina ceramic fiber layer and the furnace bottom alumina ceramic fiber layer are alumina ceramic fiber blankets.
By adopting the technical scheme, the alumina ceramic fiber blanket has better continuity, is convenient to construct, and also ensures that the formed alumina ceramic fiber layer is more uniform and the heat resistance is more uniform.
The utility model discloses further set up to: and material layers to be smelted are arranged on the inner surfaces of the furnace body carbon brick layer and the furnace bottom carbon brick layer.
By adopting the technical scheme, the material layer to be smelted is arranged on the inner surface of the carbon brick layer, so that the compatibility of the materials in the smelting furnace and the furnace body can be improved.
To sum up, the utility model discloses following beneficial effect has:
the utility model discloses a safe energy-concerving and environment-protective smelting furnace adopts mullite light brick layer as the heat-resisting material layer of furnace shaft and stove bottom, has not only improved the heat resistance of furnace body, has still avoided smelting furnace working process in the furnace body great shrinkage joint to appear, has improved the homogeneity of being heated of smelting furnace, has improved the smelting effect. The smelting furnace also has better energy-saving effect, and is safe and environment-friendly.
Drawings
FIG. 1 is a schematic structural view of a safe, energy-saving and environment-friendly smelting furnace of the present invention;
reference numerals: 1. a furnace roof; 11. an electrode; 2. a furnace body; 21. a furnace shell; 22. a furnace body aluminum silicate fiber cotton layer; 23. a furnace body mullite light brick layer; 24. a magnesium ramming material layer of the furnace body; 25. a furnace body carbon brick layer; 3. a furnace bottom; 31. a furnace bottom steel shell; 32. a first furnace bottom aluminum silicate fiber cotton layer; 33. a first hearth mullite light brick layer; 34. a first furnace bottom magnesium ramming material layer; 35. a second furnace bottom aluminum silicate fiber cotton layer; 36. a second furnace bottom mullite light brick layer; 37. a second furnace bottom magnesium ramming material layer; 38. a furnace bottom alumina ceramic fiber layer; 39. a furnace bottom carbon brick layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The utility model discloses a smelting furnace of safe energy-concerving and environment-protective includes the furnace body and with furnace body complex furnace roof 1, the furnace body includes shaft 2 and stove bottom 3. The furnace top 1 is provided with three electrode through holes, and electrodes 11 penetrate through the electrode through holes. The furnace body 2 is of an approximately inverted truncated cone cylindrical structure with a large upper part and a small lower part, the outer surface of the furnace bottom 3 is of an approximately plane structure, and the inner surface of the furnace bottom 3 is of an approximately spherical arc structure. The furnace shell 2 comprises a furnace shell 21 arranged on the outermost layer and a furnace lining arranged on the inner wall of the furnace shell 21. The furnace body lining comprises a furnace body aluminum silicate fiber cotton layer 22 arranged on the inner wall of a furnace body steel shell 21, and the furnace body aluminum silicate fiber cotton layer 22 is formed by paving an aluminum silicate fiber cotton felt on the inner wall of the furnace body steel shell 21.
The inner surface of the furnace body alumina silicate fiber cotton layer 22 is provided with a furnace body mullite light brick layer 23, and the furnace body mullite light brick layer 23 is formed by paving mullite light bricks. The inner surface of the furnace body mullite light brick layer 23 is provided with a furnace body magnesium ramming material layer 24, the furnace body magnesium ramming material layer 24 is provided with a furnace body carbon brick layer 25, and the furnace body carbon brick layer 25 is formed by laying graphite carbon bricks.
The furnace bottom 3 comprises a furnace bottom steel shell 31 arranged at the outermost layer and a furnace bottom lining arranged at the inner wall of the furnace bottom steel shell 31. The furnace bottom steel shell 31 and the furnace body steel shell 21 are integrally arranged and are welded by steel plates. The furnace bottom lining comprises a first furnace bottom aluminum silicate fiber cotton layer 32 arranged on the inner wall of the furnace bottom steel shell 31, and the first furnace bottom aluminum silicate fiber cotton layer 32 is formed by paving an aluminum silicate fiber cotton felt on the inner wall of the furnace bottom steel shell 31. The inner surface of the first furnace bottom alumina silicate fiber cotton layer 32 is provided with a first furnace bottom mullite light brick layer 33, and the first furnace bottom mullite light brick layer 33 is formed by paving mullite light bricks. A first furnace bottom magnesium ramming layer 34 is arranged on the inner surface of the first furnace bottom mullite light brick layer 33, a second furnace bottom aluminum silicate fiber cotton layer 35 is arranged on the first furnace bottom magnesium ramming layer 34, and a second furnace bottom mullite layer 36 is arranged on the second furnace bottom aluminum silicate fiber cotton layer 35. A second furnace bottom magnesium ramming layer 37 is arranged on the second furnace bottom mullite layer 36, a furnace bottom alumina ceramic fiber layer 38 is arranged on the second furnace bottom magnesium ramming layer 37, and the furnace bottom alumina ceramic fiber layer 38 is formed by laying alumina ceramic fiber blankets. The surface of the furnace bottom alumina ceramic fiber layer 38 is provided with a furnace bottom carbon brick layer 39, and the furnace bottom carbon brick layer 39 is formed by laying graphite carbon bricks.
When the smelting furnace of the embodiment is prepared, firstly, a layer of alumina silicate fiber cotton felt is paved on the upper surface of the furnace bottom, and then mullite light brick is built on the alumina silicate fiber cotton felt to form a first furnace bottom mullite light brick layer 33 of the furnace bottom. When in building, the building is symmetrically carried out from the center line to two sides, the brick joints are smaller than 2mm, and staggered building is adopted to form an arc surface on the upper surface. After the first layer of furnace bottom mullite light brick layer 33 is paved, a first furnace bottom ramming material layer 34 is formed by ramming and drying the surface of the first furnace bottom mullite light brick layer 33 by adopting a magnesium ramming material, and the thickness of the first furnace bottom ramming material layer is about 50 mm. The ramming material is also filled into the brick joints in the ramming process. And paving an alumina silicate fiber cotton felt on the first furnace bottom ramming material layer 34 to form a second furnace bottom alumina silicate fiber cotton layer 35. Then, mullite light bricks are laid on the second furnace bottom alumina silicate fiber cotton layer 35 to form a second furnace bottom mullite light brick layer 36. And then a magnesium ramming material is adopted to stamp on the mullite light brick layer 36 at the second furnace bottom to form a magnesium ramming material layer 37 at the second furnace bottom, and then an alumina ceramic fiber blanket is paved to form an alumina ceramic fiber layer 38 at the furnace bottom. Then, graphite carbon bricks are laid to form a furnace bottom carbon brick layer 39.
When the furnace bottom lining is laid, a furnace body lining laying space is reserved at a position close to the inner wall of the furnace body steel shell 21. When the furnace body lining is laid, firstly, an alumina silicate fiber cotton felt is laid to form a furnace body alumina silicate fiber cotton layer 22, then, mullite light bricks are laid to form a furnace body mullite light brick layer 23, then, magnesia ramming materials are adopted to stamp on the mullite light brick layer to form a furnace body ramming material layer 24, and then, graphite carbon bricks are laid to form a furnace body carbon brick layer 25.
In other preferred embodiments, the furnace bottom lining is provided with a furnace bottom steel shell, an alumina silicate fiber cotton layer, a mullite light brick layer, a magnesium ramming layer and a carbon brick layer from outside to inside in sequence, and the structure of the furnace bottom lining is the same as that of the furnace body lining. Preferably, the furnace bottom lining is sequentially provided with a furnace bottom steel shell, an aluminum silicate fiber cotton layer, a mullite light brick layer, a magnesium ramming layer, an alumina ceramic fiber layer and a carbon brick layer from outside to inside.
In other preferred embodiments, a furnace shell alumina ceramic fiber layer is arranged between the furnace shell mullite light rotating layer and the furnace shell carbon brick layer of the furnace shell lining.
In other preferred embodiments, the magnesium ramming layers can be provided with a thinner thickness or only filled in the brick joints, or the magnesium ramming layers are not provided, and the brick joints are filled with aluminum silicate fiber cotton.
In other preferred embodiments, the layers to be smelted are arranged on the surfaces of the furnace body carbon brick layer and the furnace bottom carbon brick layer, and the layers to be smelted are composed of the superhard material particles.
In other preferred embodiments, the aluminum silicate fiber cotton layer can be formed by laying and drying aluminum silicate fiber cotton mixed with slurry. The same alumina ceramic fiber layer can also be formed by mixing alumina ceramic fibers with slurry, laying and drying.
Claims (8)
1. The utility model provides a smelting furnace of safe energy-concerving and environment-protective, includes furnace roof (1), shaft of a furnace (2) and stove bottom (3), its characterized in that: the furnace body comprises a furnace body steel shell (21), a furnace body alumina silicate fiber cotton layer (22), a furnace body mullite light brick layer (23) and a furnace body carbon brick layer (25) which are sequentially arranged from outside to inside.
2. The smelting furnace of claim 1, which is safe, energy-saving and environment-friendly, and is characterized in that: the furnace bottom (3) comprises a furnace bottom steel shell (31), a first furnace bottom alumina silicate fiber cotton layer (32), a first furnace bottom mullite light brick layer (33), a furnace bottom alumina ceramic fiber layer (38) and a furnace bottom carbon brick layer (39) which are sequentially arranged from outside to inside.
3. The smelting furnace of claim 2, which is safe, energy-saving and environment-friendly, and is characterized in that: a second furnace bottom alumina silicate fiber cotton layer (35) and a second furnace bottom mullite light brick layer (36) which are sequentially arranged from outside to inside are arranged between the first furnace bottom mullite light brick layer (33) and the furnace bottom alumina ceramic fiber layer (38).
4. The smelting furnace of claim 2, which is safe, energy-saving and environment-friendly, and is characterized in that: a first furnace bottom magnesium ramming mass layer (34) is arranged between the first furnace bottom mullite light brick layer (33) and the second furnace bottom alumina silicate fiber cotton layer (35).
5. The smelting furnace of any one of claims 1 to 4, which is safe, energy-saving and environment-friendly, and is characterized in that: a furnace body alumina ceramic fiber layer is arranged between the furnace body mullite light brick layer (23) and the furnace body carbon brick layer (25).
6. The smelting furnace of claim 5, which is characterized in that: a furnace body magnesium ramming mass layer (24) is arranged between the furnace body mullite light brick layer (23) and the furnace body alumina ceramic fiber layer.
7. The smelting furnace of claim 2, which is safe, energy-saving and environment-friendly, and is characterized in that: the furnace body alumina ceramic fiber layer and the furnace bottom alumina ceramic fiber layer (38) are alumina ceramic fiber blankets.
8. The smelting furnace of claim 2, which is safe, energy-saving and environment-friendly, and is characterized in that: and material layers to be smelted are arranged on the inner surfaces of the furnace body carbon brick layer (25) and the furnace bottom carbon brick layer (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922088216.9U CN210922203U (en) | 2019-11-27 | 2019-11-27 | Safe energy-concerving and environment-protective smelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922088216.9U CN210922203U (en) | 2019-11-27 | 2019-11-27 | Safe energy-concerving and environment-protective smelting furnace |
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| CN210922203U true CN210922203U (en) | 2020-07-03 |
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| CN201922088216.9U Active CN210922203U (en) | 2019-11-27 | 2019-11-27 | Safe energy-concerving and environment-protective smelting furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322553A (en) * | 2021-11-24 | 2022-04-12 | 贵州固鑫新材料有限公司 | Method for building furnace hearth of dumping type electric arc furnace |
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2019
- 2019-11-27 CN CN201922088216.9U patent/CN210922203U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322553A (en) * | 2021-11-24 | 2022-04-12 | 贵州固鑫新材料有限公司 | Method for building furnace hearth of dumping type electric arc furnace |
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