CN215725120U - Non ferrous metal smelting side blown converter spray gun subassembly - Google Patents
Non ferrous metal smelting side blown converter spray gun subassembly Download PDFInfo
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- CN215725120U CN215725120U CN202121456117.2U CN202121456117U CN215725120U CN 215725120 U CN215725120 U CN 215725120U CN 202121456117 U CN202121456117 U CN 202121456117U CN 215725120 U CN215725120 U CN 215725120U
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Abstract
The utility model relates to the technical field of non-ferrous metal smelting, in particular to a spray gun assembly of a non-ferrous metal smelting side-blown furnace, which comprises a protective sleeve and a spray gun, wherein the protective sleeve is internally provided with a fire-resistant layer and a cooling layer from inside to outside, a spray gun hole is arranged in the protective sleeve, the spray gun penetrates through the spray gun hole to the inside of a molten pool, the cooling layer is integrally formed through metal liquid casting, a first cooling channel and a second cooling channel are arranged in the cooling layer, the first cooling channel and the second cooling channel are respectively communicated with an oil inlet pipeline and an oil return pipeline, the fire-resistant layer and the spray gun are protected through the fire-resistant layer, the cooling layer is forcibly cooled through circulating oil, the fire-resistant layer and the spray gun are cooled through the cooling layer, the cooling effect is good, the safety coefficient is high, and the furnace opening time is prolonged.
Description
Technical Field
The utility model relates to the technical field of non-ferrous metal smelting, in particular to a non-ferrous metal smelting side-blown converter spray gun assembly.
Background
In recent years, a side-blown submerged molten pool combustion technology (SSC) which is autonomously developed and researched in China is widely applied to smelting waste lead plaster. The side-blown submerged molten pool combustion technology is characterized in that a multi-channel side-blown spray gun injects oxygen-enriched air and fuel into the molten pool to directly supplement heat and stir the melt violently, and all the inside of the furnace adopts refractory materials as a furnace lining. In the practical production process, the spray guns and the gun bricks in the side-blown converter become key factors influencing the continuous and stable operation of the side-blown converter. When oxygen-enriched air and other fuels are sprayed into the furnace through the oxygen lance, a large amount of heat is generated at the lance mouth, so that the burning loss of the lance and refractory materials is caused, and the side-blown furnace is directly blown out.
Improving the service life of the spray gun and the gun mouth brick is one of the technical bottlenecks of the side-blown furnace smelting industry. In order to overcome the above problems, patent No. CN209085304U discloses a novel side-blown converter nozzle, which combines with a copper water jacket by using a refractory layer, wherein a cooling water pipe is arranged in the copper water jacket, and the copper water jacket exchanges heat with the refractory layer by continuous circulation of cooling water, so as to maintain the temperature of the spray gun and the refractory layer to be reduced, avoid causing the spray gun and the refractory layer to be burned out, but have great potential safety hazards, for example: 1. and once the water pipe is broken, water flows into the smelting furnace and reacts with molten metal in the smelting furnace immediately, so that explosion is easy to occur. 2. The smelting temperature of the immersed molten pool reaches 900-1200 ℃, water is used as a cooling medium, the boiling point of the water is low, steam is easy to generate to influence heat exchange, the steam cannot be discharged in time, and a water pipe is easy to crack. 3. Condenser tube corrodes easily and the scale deposit, and the condenser tube is installed through the shaping of bending, and the condenser tube after corruption and the scale deposit is not convenient for change, is overhauld and is cleared up, in case condenser tube has local damage, and whole copper water jacket all needs to be changed, and condenser tube after the scale deposit also can cause hydrologic cycle to be obstructed, influences the cooling effect, and later maintenance is with high costs.
Disclosure of Invention
The utility model aims to provide a spray gun assembly of a non-ferrous metal smelting side-blown converter, aiming at the defects of the prior art, the spray gun head is protected by a flame retardant coating, the cooling coating is forcibly cooled by circulating oil, the flame retardant coating and the spray gun are cooled by the cooling coating, the cooling effect is good, the safety coefficient is high, and the blow-in time is prolonged.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a non ferrous metal melting side blown converter spray gun subassembly, includes lag and spray gun, the lag is provided with flame retardant coating and cooling layer from inside to outside, be provided with the spray gun hole in the lag, the spray gun runs through inside spray gun hole to the molten bath, the cooling layer is for casting integrated into one piece through the molten metal, be provided with first cooling channel and second cooling channel in the cooling layer, first cooling channel with second cooling channel communicates with oil inlet pipe way and time oil pipe way respectively.
The first cooling channel and the second cooling channel are respectively arranged on two sides of the spray gun hole, so that the first cooling channel and the second cooling channel are uniformly arranged on two sides of the spray gun hole, and the cooling layer and the fire-resistant layer on two sides of the spray gun hole are uniformly cooled.
Further setting, first cooling channel with the second cooling channel is in serpentine arrangement in the cooling layer, so set up, the inside increase heat transfer area in cooling layer is favorable to through taking away more heats. And in the further arrangement, the oil inlet ends of the first cooling channel and the second cooling channel are close to the fire-resistant layer, the oil inlet temperature is low, the temperature of the cooling layer close to the fire-resistant layer is higher in the heat transfer process, and the cooling efficiency is favorably improved.
The first cooling channel and the second cooling channel are arranged from thin to dense from an oil inlet end to an oil outlet end, and the oil inlet end of the cooling layer is close to the fire-resistant layer, so that the circulation of cooling oil in the area is accelerated.
The oil inlet pipeline and the oil return pipeline are respectively communicated with the oil tank, the oil return pipeline is arranged at the top of the oil tank, the oil inlet pipeline is arranged at the bottom of the oil tank, and an oil pump is arranged between the oil inlet pipeline and the oil tank.
The oil inlet pipeline and the oil return pipeline are provided with four temperature sensors which are respectively arranged at the oil inlet end of the oil inlet channel of the first cooling channel and the oil return end of the oil return channel, so that the real-time monitoring of the oil temperature is realized.
Further setting up, still include the DSC system, the DSC system with temperature sensor electric connection, the DSC system is provided with set value and alarm system, when first cooling channel and second cooling channel exit oil temperature surpassed the set value, system automatic alarm.
Further, the fireproof layer is made of magnesia-chrome bricks, and the cooling layer is made of copper.
The spray gun component of the non-ferrous metal smelting side-blown converter has the beneficial effects that: 1. it carries out rifle head protection to the spray gun through the flame retardant coating, through the cooling layer to flame retardant coating and spray gun cooling, the cooling layer is forced through the cooling oil and is cooled down, and the cooling effect is good, has avoided water-cooling process water pipeline to break, and the cooling water gets into accidents such as the molten bath emergence explosion, and factor of safety is high. 2. The cooling layer is internally provided with two cooling channels through casting and integral molding, so that the cooling device is simple to install and convenient to overhaul, and the cooling layer can be recycled after being damaged, so that the economic value is high. 3. The spray gun hole matched with the spray gun is formed in the protective sleeve, so that the spray gun is effectively fixed and supported, and the installation stability of the spray gun is high. 4. The cooling channel arranged in a snake shape is arranged in the cooling layer, the heat exchange area is large, the first cooling channel and the second cooling channel are respectively arranged on two sides of the spray gun holes on the two sides, the fire-resistant layer is cooled uniformly and simultaneously quickly cools the spray gun, and the protection effect is good.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Description of reference numerals:
1-spray gun, 2-protective sleeve, 3-fire-resistant layer, 4-cooling layer, 5-first cooling channel, 6-second cooling channel, 7-oil inlet pipeline, 8-oil return pipeline, 9-oil tank, 10-oil pump, 11-temperature sensor and 12-spray gun hole.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples, which are not intended to limit the scope of the utility model.
As shown in fig. 1, the non-ferrous metal smelting side-blown converter spray gun assembly of the embodiment comprises a protective sleeve 2 and a spray gun 1, wherein a spray gun hole 12 is formed in the protective sleeve 2, the spray gun hole 12 is structurally matched with the spray gun 1, and the spray gun 1 penetrates through the spray gun hole 12 to the inside of a molten pool; the protective sleeve 2 is provided with a fire-resistant layer 3 and a cooling layer 4 from inside to outside, the fire-resistant layer 3 is a magnesia chrome brick, the cooling layer 4 is integrally formed by casting metal liquid copper, a first cooling channel 4 and a second cooling channel 5 are arranged in the cooling layer 4, and the first cooling channel 4 and the second cooling channel 5 are respectively communicated with an oil inlet pipeline 7 and an oil return pipeline 8; the oil inlet pipeline 7 and the oil return pipeline 8 are respectively communicated with the oil tank 9, the oil return pipeline 8 is arranged at the top of the oil tank 9, the oil inlet pipeline 7 is arranged at the bottom of the oil tank 9, and an oil pump is arranged between the oil inlet pipeline 7 and the oil tank 9; first cooling channel 4 and second cooling channel 5 spray gun hole 12 both sides in cooling layer 4 are evenly arranged, and first cooling channel 4 and second cooling channel 5 are serpentine structure, so set up increase heat transfer area, are of value to through taking away more heats, first cooling channel 4 with second cooling channel 5 is held to oil outlet by the oil feed to by close to rare.
Further setting, 1 one end of spray gun is fixed with cooling layer 3 through the fixing base.
Further setting, advance oil pipe 7 with oil return pipe 8 all is provided with temperature sensor 11, and temperature sensor 11 has four, sets up respectively in the oil feed end of the oil feed passageway of first cooling passage 4 and second cooling passage 5 and the oil return end of oil return passageway, realizes the real time monitoring to oil temperature.
Further setting up, still include the DSC system, the DSC system with temperature sensor electric connection, the DSC system is provided with set value and alarm system, when first cooling channel and second cooling channel exit oil temperature surpassed the set value, system automatic alarm.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The utility model provides a non ferrous metal smelting side blown converter spray gun subassembly, includes lag and spray gun, its characterized in that: the utility model discloses a cooling structure, including lag, spray gun hole, cooling layer, first cooling channel and second cooling channel, the lag is provided with flame retardant coating and cooling layer from inside to outside, be provided with the spray gun hole in the lag, the spray gun runs through inside spray gun hole to the molten bath, the cooling layer is for casting integrated into one piece through the molten metal, be provided with first cooling channel and second cooling channel in the cooling layer, first cooling channel with second cooling channel communicates with oil inlet pipe way and oil return pipe respectively.
2. The non-ferrous metal melting side-blown converter lance assembly defined in claim 1 wherein: the first cooling channel and the second cooling channel are respectively arranged on two sides of the spray gun hole.
3. The non-ferrous metal melting side-blown converter lance assembly defined in claim 2 wherein: the first cooling channel and the second cooling channel are arranged in a serpentine shape within the cooling layer.
4. The non-ferrous metal melting side-blown converter lance assembly of claim 3 wherein: the oil inlet ends of the first cooling channel and the second cooling channel are close to the fire-resistant layer.
5. The non-ferrous metal melting side-blown converter lance assembly of claim 4 wherein: the first cooling channel and the second cooling channel are arranged from thin to dense from an oil inlet end to an oil outlet end.
6. The non-ferrous metal melting side-blown converter lance assembly defined in claim 1 wherein: the oil inlet pipeline and the oil return pipeline are respectively communicated with the oil tank, the oil return pipeline is arranged at the top of the oil tank, the oil inlet pipeline is arranged at the bottom of the oil tank, and an oil pump is arranged between the oil inlet pipeline and the oil tank.
7. The non-ferrous metal melting side-blown converter lance assembly defined in claim 1 wherein: the oil inlet pipeline and the oil return pipeline are both provided with temperature sensors.
8. The non-ferrous metal melting side-blown converter lance assembly defined in claim 7 wherein: still include the DSC system, the DSC system with temperature sensor electric connection.
9. The non-ferrous metal melting side-blown converter lance assembly defined in claim 1 wherein: the refractory layer is made of magnesia-chrome bricks, and the cooling layer is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121456117.2U CN215725120U (en) | 2021-06-29 | 2021-06-29 | Non ferrous metal smelting side blown converter spray gun subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121456117.2U CN215725120U (en) | 2021-06-29 | 2021-06-29 | Non ferrous metal smelting side blown converter spray gun subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215725120U true CN215725120U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121456117.2U Active CN215725120U (en) | 2021-06-29 | 2021-06-29 | Non ferrous metal smelting side blown converter spray gun subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215725120U (en) |
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2021
- 2021-06-29 CN CN202121456117.2U patent/CN215725120U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Peng Inventor after: Shu Shaoming Inventor after: Gao Guoxing Inventor after: Liu Yanbing Inventor before: Zhang Hantian Inventor before: Li Shunhai Inventor before: Gao Guoxing Inventor before: Liu Yanbing |
|
| CB03 | Change of inventor or designer information |