CN216977516U - Side-blown molten pool smelting furnace with material column - Google Patents
Side-blown molten pool smelting furnace with material column Download PDFInfo
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- CN216977516U CN216977516U CN202220211316.5U CN202220211316U CN216977516U CN 216977516 U CN216977516 U CN 216977516U CN 202220211316 U CN202220211316 U CN 202220211316U CN 216977516 U CN216977516 U CN 216977516U
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Abstract
The utility model relates to a side-blown molten pool smelting furnace with a material column, which belongs to the field of smelting equipment and comprises a furnace body (1), wherein the top of the furnace body (1) is provided with a feed inlet (2); the middle lower part of the furnace body (1) is respectively provided with a mixing nozzle (3) and an oxygen supplementing nozzle (4), wherein the oxygen supplementing nozzle (4) is arranged on the mixing nozzle (3); the furnace body (1) is sequentially provided with a molten pool smelting area (5), an oxygen supplementing combustion area (6) and a material column area (7) from bottom to top; the utility model can form a material column in the smelting furnace, and the formed material column continuously absorbs and preheats materials in the downward moving process to fully utilize the waste heat of high-temperature flue gas, and meanwhile, the material column fully recovers most of dust in the flue gas, thereby increasing the one-time recovery rate of metal, greatly reducing the secondary return of the dust and greatly reducing the construction, production and operation costs.
Description
Technical Field
The utility model belongs to the field of smelting equipment, and particularly relates to a side-blown molten pool smelting furnace with a material column.
Background
Present tin, copper, lead smelting furnace, be side-blown (oxygen boosting side-blown), oxygen boosting bottom blowing or top-blown (oxygen boosting top-blown) and smelt, this type of smelting furnace, the material boils in whole stove, and fuel consumption is high, and output flue gas temperature is higher, just can remove dust after needing the cooling to handle, not only calorific loss is big, the dust is big, the secondary returns the material too much, and has the processing cost height scheduling problem of flue gas back end system, whole energy resource consumption and manufacturing cost are higher.
Disclosure of Invention
In order to overcome the problems in the background art, the utility model provides a side-blown molten pool smelting furnace with a material column, the material column can be formed in the smelting furnace through the improvement of the structure of the smelting furnace and the design of a charging hole, the formed material column continuously absorbs and preheats materials in the downward moving process to fully utilize the waste heat of high-temperature flue gas, and meanwhile, as the material column is arranged, most of dust in the flue gas is fully recovered, the one-time recovery rate of metal is increased, the secondary material return of the dust is greatly reduced, and the production and operation costs are greatly reduced.
In order to realize the purpose, the utility model is realized by the following technical scheme:
the side-blown molten pool smelting furnace with the material column comprises a furnace body, wherein a charging hole is formed in the top of the furnace body; the middle lower part of the furnace body is respectively provided with a mixing nozzle and an oxygen supplementing nozzle, wherein the oxygen supplementing nozzle is arranged above the mixing nozzle.
Preferably, the furnace body sequentially comprises a molten pool smelting area, an oxygen supplementing combustion area and a material column area from bottom to top.
The material column area of the furnace body is of a gradually expanding structure, and the gradually expanding angle is 3-9 degrees.
Preferably, the inner wall of the furnace body below the material column area is of a vertical structure.
Preferably, the mixing nozzle is arranged 400mm-1500mm away from the furnace bottom, and the mixing nozzle is obliquely inserted into the furnace body and has an inclination angle of 0-9 degrees with the furnace body.
Preferably, the oxygen supplementing nozzle is arranged at a distance of 800 mm-2000 mm from the furnace bottom, and the oxygen supplementing nozzle is obliquely inserted into the furnace body, and the inclination angle between the oxygen supplementing nozzle and the furnace body is 0-5 degrees.
Preferably, the top of the furnace body is provided with an annular induced draft tube along the periphery.
Preferably, the furnace body is of a rectangular or oval structure; the mixing nozzle and the oxygen supplementing nozzle are respectively arranged on the long sides of the furnace body in a pairwise opposite manner; and the distance between the two opposite mixing nozzles and oxygen supplementing nozzles is 1200-2200 mm.
Preferably, refractory materials are paved in the furnace body, and a vaporization water jacket is arranged outside the furnace body.
The utility model has the beneficial effects that:
according to the characteristics of the side-blown converter, the mixing nozzle and the oxygen supplementing nozzle are arranged at the middle lower part of the converter body, materials can be melted from the mixing nozzle and the oxygen supplementing nozzle, and a material column can be formed in the converter by combining the mode of arranging the charging opening at the top of the converter, the material column is gradually melted from the bottom layer and moves downwards, the formed material column absorbs the melting waste heat in the downward moving process, the heat is fully utilized, and the energy consumption is low; the smoke dust generated in the smelting process is absorbed by the material column, so that the secondary return of the smoke dust is greatly reduced; because heat and flue gas are absorbed and consumed by the material columns, the temperature of the flue gas discharged from the furnace body is lower, and the flue gas can be directly sent to dust removal equipment, so that the equipment construction investment is reduced.
The utility model can improve the heat utilization rate of smelting, has small dust amount, and has far lower equipment construction cost and generation cost than the prior side-blown converter.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure, 1-furnace body, 2-charging hole, 3-mixing nozzle, 4-oxygen-supplementing nozzle, 5-molten pool smelting zone, 6-oxygen-supplementing combustion zone, 7-material column zone, 8-annular induced draft tube, 9-refractory material, 10-vaporization water jacket, 11-siphon mouth, 12-slag outlet and 13-bearing platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in figure 1, the side-blown molten pool smelting furnace with the charging column comprises a furnace body 1, refractory materials 9 are paved in the furnace body 1, a vaporization water jacket 10 is arranged outside, a siphon inlet 11 and a slag outlet 12 are arranged at the lower part, a bearing platform 13 is arranged at the bottom, and the furnace body 1 is a side-blown furnace with any shape, such as a circular side-blown furnace, a rectangular side-blown furnace or an elliptical side-blown furnace.
The feed inlet 2 is arranged at the center of the top of the furnace body 1, the middle lower part of the furnace body 1 is respectively provided with a mixing nozzle 3 and an oxygen supplementing nozzle 4, wherein the oxygen supplementing nozzle 4 is arranged on the mixing nozzle 3. Materials are added into the furnace from the feed inlet 2, and due to the arrangement of the positions of the mixing nozzle 3 and the oxygen supplementing nozzle 4, the furnace body 1 sequentially comprises a molten pool smelting area 5, an oxygen supplementing combustion area 6 and a material column area 7 from bottom to top, the materials form a material column in the furnace, the molten pool smelting area 5 is formed at the position of the furnace body 1 opposite to the position of the mixing nozzle 3, and the materials are smelted; an oxygen-supplementing combustion area 6 is formed at the position opposite to the position of the oxygen-supplementing nozzle 4 of the furnace body 1, and carbon monoxide generated by over-reduction of the melting zone 5 of the melting bath and residual carbon escaping from slag bodies in the melting zone of the melting bath can be completely combusted in the oxygen-supplementing combustion area 6 through the oxygen-supplementing combustion area 6. The number of mixing nozzles 3 is at least twice as many as the number of oxygenating nozzles 4.
The upper part of the oxygen-supplementing combustion zone 6 is a material column zone 7, the material column of the material column zone 7 is solid, the whole material column is gradually melted and downwards moved from the lower part (the melting zone 5 of the melting bath), and is heated and gradually heated in the downwards moving process, the material column fully absorbs melting heat and adsorbs melting smoke dust in the downwards moving process, and therefore energy consumption and smoke dust amount are reduced.
An annular induced draft pipe 8 is arranged on the top of the furnace body 1 along the periphery and used for exhausting smoke dust in the furnace and providing negative pressure for the furnace body.
As a preferred technical scheme, the interior of a furnace body of a melting bath smelting zone 5 and an oxygen-supplementing combustion zone 6 of the furnace body 1 is of a vertical structure, a material column zone 7 is of a gradually expanding structure, the gradually expanding angle is 3-9 degrees, and the gradually expanding structure is 3-9 degrees, so that the material column can be moved downwards uniformly.
The mixing nozzle 3 is arranged 400mm-1500mm away from the furnace bottom, has an inclination angle of 0-9 degrees with the inner 1 of the furnace body, and is inserted into the furnace body in an inclined way. The oxygen supplementing nozzle 4 is arranged at a distance of 800 mm-2000 mm from the furnace bottom, has an inclination angle of 0-5 degrees with the furnace body, and is obliquely inserted into the furnace body.
The mixing nozzle 3 and the oxygen supplementing nozzle 4 are arranged oppositely in pairs, the distance between every two opposite nozzles is 1200mm-2200mm, the furnace body 1 is in an oval or rectangular shape, and the mixing nozzle 3 and the oxygen supplementing nozzle 4 are arranged oppositely in pairs on the side wall of the long edge. The hearth area can be increased by increasing the number of mixing nozzles 3 and oxygenating nozzles 4.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the utility model, and that, while the utility model has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the utility model as defined by the appended claims.
Claims (9)
1. The utility model provides a side-blown molten bath smelting furnace of belting post which characterized in that: comprises a furnace body (1), wherein the top of the furnace body (1) is provided with a feed inlet (2); the middle lower part of the furnace body (1) is respectively provided with a mixing nozzle (3) and an oxygen supplementing nozzle (4), wherein the oxygen supplementing nozzle (4) is arranged on the mixing nozzle (3).
2. The side-blown bath smelting furnace with a material column according to claim 1, characterized in that: the furnace body (1) is sequentially provided with a molten pool smelting area (5), an oxygen supplementing combustion area (6) and a material column area (7) from bottom to top.
3. The side-blown bath smelting furnace with the material column according to claim 2, characterized in that: the material column area (7) of the furnace body (1) is of a gradually expanding structure, and the gradually expanding angle is 3-9 degrees.
4. The side-blown bath smelting furnace with a material column according to claim 3, characterized in that: the inner wall of the furnace body below the material column area (7) is of a vertical structure.
5. The side-blown molten bath smelting furnace with material column according to any one of claims 1 to 4, characterized in that: the mixing nozzle (3) is arranged 400mm-1500mm away from the furnace bottom, and the mixing nozzle (3) is obliquely inserted into the furnace body (1) and has an inclination angle of 0-9 degrees with the furnace body.
6. The side-blown bath smelting furnace with material column according to claim 5, characterized in that: the oxygen supplementing nozzle (4) is arranged at a distance of 800 mm-2000 mm from the furnace bottom, and the oxygen supplementing nozzle (4) is obliquely inserted into the furnace body (1) and has an inclination angle of 0-5 degrees with the furnace body.
7. The side-blown bath smelting furnace with a charge column according to claim 6, wherein the furnace body (1) has a rectangular or oval structure; the mixing nozzle (3) and the oxygen supplementing nozzle (4) are respectively arranged on the long sides of the furnace body (1) in a pairwise opposite manner; and the distance between the two opposite mixing nozzles (3) and the oxygen supplementing nozzles (4) is 1200-2200 mm.
8. The side-blown bath smelting furnace with material column according to claim 1, characterized in that: the top of the furnace body (1) is provided with an annular induced draft tube (8) along the periphery.
9. The side-blown bath smelting furnace with a material column according to claim 1, characterized in that: refractory materials (9) are paved in the furnace body (1), and a vaporization water jacket (10) is arranged outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220211316.5U CN216977516U (en) | 2022-01-26 | 2022-01-26 | Side-blown molten pool smelting furnace with material column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220211316.5U CN216977516U (en) | 2022-01-26 | 2022-01-26 | Side-blown molten pool smelting furnace with material column |
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| Publication Number | Publication Date |
|---|---|
| CN216977516U true CN216977516U (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220211316.5U Active CN216977516U (en) | 2022-01-26 | 2022-01-26 | Side-blown molten pool smelting furnace with material column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216977516U (en) |
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2022
- 2022-01-26 CN CN202220211316.5U patent/CN216977516U/en active Active
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