CN104141155B - A kind of electrolytic aluminum emission-control equipment - Google Patents
A kind of electrolytic aluminum emission-control equipment Download PDFInfo
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- CN104141155B CN104141155B CN201410325692.7A CN201410325692A CN104141155B CN 104141155 B CN104141155 B CN 104141155B CN 201410325692 A CN201410325692 A CN 201410325692A CN 104141155 B CN104141155 B CN 104141155B
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- hydrogen fluoride
- gas treatment
- solid dust
- waste gas
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
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Abstract
The present invention discloses a kind of electrolytic aluminum emission-control equipment, comprise waste gas absorption cover, waste gas absorption pipe, vacuum fan, off gas treatment room and delivery pipe, the inlet mouth of described vacuum fan is connected on waste gas absorption cover by waste gas absorption pipe, the air outlet of described vacuum fan is connected on the inlet mouth of off gas treatment room by waste gas absorption pipe, described delivery pipe is connected on the air outlet of off gas treatment room, described off gas treatment room is provided with three-decker, it is respectively carbon monoxide treatment chamber, hydrogen fluoride trealment room and solid dust room, carbon monoxide treatment chamber is positioned at below hydrogen fluoride trealment room, solid dust room is positioned at above hydrogen fluoride trealment room, the air outlet of off gas treatment room is arranged on the top of solid dust room. after this emission-control equipment effect, the objectionable impurities in anodic product is removed, it is possible to be directly discharged in air, can not be polluted by environment.
Description
Technical field
The present invention relates to the production unit of electrolytic aluminum, particularly relate to the device processing waste gas when electrolytic aluminum.
Background technology
Electrolytic aluminum is exactly the aluminium obtained by electrolysis. Modern electrolytic aluminum industrial production adopts sodium aluminum fluoride-aluminum oxide molten salt electrolysis. Molten cryolitic is solvent, and aluminum oxide is as solute, and using carbon body as anode, aluminium liquid, as negative electrode, after leading to powerful direct current, at 950 DEG C-970 DEG C, the two poles of the earth in electrolyzer carries out electrochemical reaction, both electrolysis.
Anodic product is carbonic acid gas and CO (carbon monoxide converter) gas mainly, wherein containing obnoxious flavour and solid dusts such as a certain amount of hydrogen fluoride. For protection of the environment and human health need antianode gas to carry out purifying treatment, after removing obnoxious flavour and dust, enter air. Cathode product is aluminium liquid, and aluminium liquid is extracted out in groove by vacuum ladle, is sent to molding floor, in holding furnace after purification clarification, is cast into aluminium ingot or is directly processed into line base, section bar etc.
Summary of the invention
The obnoxious flavour contained in the anodic product produced during in order to remove electrolytic aluminum and solid dust, the present invention provides a kind of electrolytic aluminum emission-control equipment, after this emission-control equipment effect, objectionable impurities in anodic product is removed, can directly be discharged in air, environment can not be polluted.
A kind of electrolytic aluminum emission-control equipment, it is characterized in that: comprise waste gas absorption cover, waste gas absorption pipe, vacuum fan, off gas treatment room and delivery pipe, the inlet mouth of described vacuum fan is connected on waste gas absorption cover by waste gas absorption pipe, the air outlet of described vacuum fan is connected on the inlet mouth of off gas treatment room by waste gas absorption pipe, described delivery pipe is connected on the air outlet of off gas treatment room, described off gas treatment room is provided with three-decker, it is respectively carbon monoxide treatment chamber, hydrogen fluoride trealment room and solid dust room, carbon monoxide treatment chamber is positioned at below hydrogen fluoride trealment room, solid dust room is positioned at above hydrogen fluoride trealment room, the air outlet of off gas treatment room is arranged on the top of solid dust room.
The inwall of described off gas treatment room is provided with four floor boss, every layer of boss is placed with mesh plate, mesh plate forms described carbon monoxide treatment chamber, hydrogen fluoride trealment room and solid dust room, described carbon monoxide treatment chamber inner side-wall is provided with heat-generating pipe, and on mesh plate, it is placed with cupric oxide plate, cupric oxide plate is coated in woven wire, described hydrogen fluoride trealment indoor are placed with aluminium powder and gac, coated aluminum powder is in non-woven fabrics, described solid dust indoor are provided with atomizer, and atomizer is arranged on the sidewall of solid dust room.
It is provided with a groove in described delivery pipe, in groove, it is placed with aqua calcis.
The sidewall of described carbon monoxide treatment chamber, hydrogen fluoride trealment room and solid dust room is provided with opening, and opening place is provided with door, and the surrounding of door is provided with sealing-ring.
Described off gas treatment room is an airtight cavity, and off gas treatment room and the junction of waste gas absorption pipe and the junction of off gas treatment room and delivery pipe are provided with seal gum.
The present invention has the following advantages:
1, the present invention comprises waste gas absorption cover, waste gas absorption pipe, vacuum fan, off gas treatment room and delivery pipe, described waste gas absorption cover cover is buckled in above electrolyzer, the inlet mouth of described vacuum fan is connected on waste gas absorption cover by waste gas absorption pipe, the air outlet of described vacuum fan is connected on the inlet mouth of off gas treatment room by waste gas absorption pipe, described delivery pipe is connected on the air outlet of off gas treatment room, described off gas treatment room is provided with three-decker, it is respectively carbon monoxide treatment chamber, hydrogen fluoride trealment room and solid dust room, carbon monoxide treatment chamber is positioned at below hydrogen fluoride trealment room, solid dust room is positioned at above hydrogen fluoride trealment room, the air outlet of off gas treatment room is arranged on the top of solid dust room. waste gas absorption cover and vacuum fan are indoor to off gas treatment by the waste gas absorption in electrolyzer, and the carbon monoxide treatment chamber of off gas treatment indoor, hydrogen fluoride trealment room and solid dust room remove carbon monoxide, hydrogen fluoride and solid dust respectively, by the process of three treatment chambers, it is discharged in air after removing the carbonoxide in the gas absorbed, hydrogen fluoride and solid dust, air can not be polluted.
2, the inwall of off gas treatment room of the present invention is provided with four floor boss, every layer of boss is placed with mesh plate, mesh plate forms described carbon monoxide treatment chamber, hydrogen fluoride trealment room and solid dust room, described carbon monoxide treatment chamber inner side-wall is provided with heat-generating pipe, and on mesh plate, it is placed with cupric oxide plate, cupric oxide plate is coated in woven wire, described hydrogen fluoride trealment indoor are placed with aluminium powder and gac, coated aluminum powder is in non-woven fabrics, described solid dust indoor are provided with atomizer, and atomizer is arranged on the sidewall of solid dust room. anodic product is absorbed into off gas treatment indoor, when carbon monoxide is indoor, the heat-generating pipe of carbon monoxide indoor sends heat, cupric oxide and carbon monoxide occur reaction to generate carbonic acid gas, after eliminating the carbon monoxide in waste gas, anodic product enters into hydrogen fluoride trealment indoor, hydrogen fluoride and aluminium powder in anodic product react, chemistry removes hydrogen fluoride, anodic product siphons away hydrogen fluoride and some dust through gac simultaneously, then solid dust indoor are entered into, through the atomizer effect of solid dust room, solid dust is mixed, solid dust falls from gas, solid dust removes, then discharged by delivery pipe, such expellant gas does not almost have hydrogen fluoride, solid dust and carbon monoxide, expellant gas does not pollute the environment.
3, it is provided with a groove in delivery pipe of the present invention, in groove, it is placed with aqua calcis. The aqua calcis arranged in groove can remove the partial CO 2 in waste gas, reduces the quantity discharged of carbonic acid gas.
4, the sidewall of the carbon monoxide treatment chamber of the present invention, hydrogen fluoride trealment room and solid dust room is provided with opening, and opening place is provided with door, and the surrounding of door is provided with sealing-ring. Such structure design is mainly for the ease of changing various treatment agent, and the effect of the sealing-ring of setting is to prevent waste gas from revealing from opening, cause the pollution of environment.
5, off gas treatment room of the present invention is an airtight cavity, and off gas treatment room and the junction of waste gas absorption pipe and the junction of off gas treatment room and delivery pipe are provided with seal gum.The effect of seal gum is to prevent exhaust leak.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is the structural representation of off gas treatment room.
Figure marks 1, electrolyzer, 2, waste gas absorption cover, 3, vacuum fan, 4, waste gas absorption pipe, 5, off gas treatment room, 50, the inlet mouth of off gas treatment room, 51, boss, 52, mesh plate, 53, carbon monoxide treatment chamber, 54, hydrogen fluoride trealment room, 55, solid dust room, 56, opening, 57, door, 58, delivery pipe, 59, groove.
Embodiment
The present invention comprises waste gas absorption cover 2, waste gas absorption pipe 4, vacuum fan 3, off gas treatment room 5 and delivery pipe 58, described waste gas absorption cover 2 cover is buckled in above electrolyzer 1, the inlet mouth of described vacuum fan 3 is connected on waste gas absorption cover 2 by waste gas absorption pipe 4, the air outlet of described vacuum fan 3 is connected on the inlet mouth 50 of off gas treatment room by waste gas absorption pipe 4, described delivery pipe 58 is connected on the air outlet of off gas treatment room 5, described off gas treatment room 5 is provided with three-decker, it is respectively carbon monoxide treatment chamber 53, hydrogen fluoride trealment room 54 and solid dust room 55, carbon monoxide treatment chamber 53 is positioned at below hydrogen fluoride trealment room 54, solid dust room 55 is positioned at above hydrogen fluoride trealment room 54, the air outlet of off gas treatment room 5 is arranged on the top of solid dust room 55. waste gas absorption cover and vacuum fan are indoor to off gas treatment by the waste gas absorption in electrolyzer, and the carbon monoxide treatment chamber of off gas treatment indoor, hydrogen fluoride trealment room and solid dust room remove carbon monoxide, hydrogen fluoride and solid dust respectively, by the process of three treatment chambers, it is discharged in air after removing the carbonoxide in the gas absorbed, hydrogen fluoride and solid dust, air can not be polluted.
The inwall of off gas treatment room 5 of the present invention is provided with four floor boss 51, every layer of boss 51 is placed with mesh plate 52, mesh plate 52 forms described carbon monoxide treatment chamber 53, hydrogen fluoride trealment room 54 and solid dust room 55, described carbon monoxide treatment chamber 53 inner side-wall is provided with heat-generating pipe, and it is placed with cupric oxide plate on mesh plate 52, cupric oxide plate is coated in woven wire, described hydrogen fluoride trealment indoor are placed with aluminium powder and gac, coated aluminum powder is in non-woven fabrics, described solid dust indoor are provided with atomizer, and atomizer is arranged on the sidewall of solid dust room. anodic product is absorbed into off gas treatment indoor, when carbon monoxide is indoor, the heat-generating pipe of carbon monoxide indoor sends heat, cupric oxide and carbon monoxide occur reaction to generate carbonic acid gas, after eliminating the carbon monoxide in waste gas, anodic product enters into hydrogen fluoride trealment indoor, hydrogen fluoride and aluminium powder in anodic product react, chemistry removes hydrogen fluoride, anodic product siphons away hydrogen fluoride and some dust through gac simultaneously, then solid dust indoor are entered into, through the atomizer effect of solid dust room, solid dust is mixed, solid dust falls from gas, solid dust removes, then discharged by delivery pipe, such expellant gas does not almost have hydrogen fluoride, solid dust and carbon monoxide, expellant gas does not pollute the environment.
It is provided with a groove 59 in delivery pipe 58 of the present invention, in groove, it is placed with aqua calcis. The aqua calcis arranged in groove can remove the partial CO 2 in waste gas, reduces the quantity discharged of carbonic acid gas.
The sidewall of the carbon monoxide treatment chamber of the present invention, hydrogen fluoride trealment room and solid dust room is provided with opening 56, and opening 56 place is provided with door 57, and the surrounding of door 57 is provided with sealing-ring.Such structure design is mainly for the ease of changing various treatment agent, and the effect of the sealing-ring of setting is to prevent waste gas from revealing from opening, cause the pollution of environment.
Off gas treatment room 5 of the present invention is an airtight cavity, and off gas treatment room and the junction of waste gas absorption pipe and the junction of off gas treatment room and delivery pipe are provided with seal gum. The effect of seal gum is to prevent exhaust leak.
The present invention is set forth further below in conjunction with specific embodiment:
Embodiment 1
The present embodiment comprises waste gas absorption cover 2, waste gas absorption pipe 4, vacuum fan 3, off gas treatment room 5 and delivery pipe 58, described waste gas absorption cover 2 cover is buckled in above electrolyzer 1, the inlet mouth of described vacuum fan 3 is connected on waste gas absorption cover 2 by waste gas absorption pipe 4, the air outlet of described vacuum fan 3 is connected on the inlet mouth 50 of off gas treatment room by waste gas absorption pipe 4, described delivery pipe 58 is connected on the air outlet of off gas treatment room 5, described off gas treatment room 5 is provided with three-decker, it is respectively carbon monoxide treatment chamber 53, hydrogen fluoride trealment room 54 and solid dust room 55, carbon monoxide treatment chamber 53 is positioned at below hydrogen fluoride trealment room 54, solid dust room 55 is positioned at above hydrogen fluoride trealment room 54, the air outlet of off gas treatment room 5 is arranged on the top of solid dust room 55.
The inwall of off gas treatment room 5 is provided with four floor boss 51, every layer of boss 51 is placed with mesh plate 52, mesh plate 52 forms described carbon monoxide treatment chamber 53, hydrogen fluoride trealment room 54 and solid dust room 55, described carbon monoxide treatment chamber 53 inner side-wall is provided with heat-generating pipe, and it is placed with cupric oxide plate on mesh plate 52, cupric oxide plate is coated in woven wire, described hydrogen fluoride trealment indoor are placed with aluminium powder and gac, coated aluminum powder is in non-woven fabrics, described solid dust indoor are provided with atomizer, and atomizer is arranged on the sidewall of solid dust room.
It is provided with a groove 59 in delivery pipe 58, in groove, it is placed with aqua calcis. The sidewall of carbon monoxide treatment chamber, hydrogen fluoride trealment room and solid dust room is provided with opening 56, and opening 56 place is provided with door 57, and the surrounding of door 57 is provided with sealing-ring. Off gas treatment room 5 is an airtight cavity, and off gas treatment room and the junction of waste gas absorption pipe and the junction of off gas treatment room and delivery pipe are provided with seal gum.
Off gas treatment room 5 is a rectangular parallelepiped in the present embodiment, and boss 51 is arranged on the sidewall of off gas treatment room 5, and boss 51 is for holding boss.
Embodiment 2
The present embodiment comprises waste gas absorption cover 2, waste gas absorption pipe 4, vacuum fan 3, off gas treatment room 5 and delivery pipe 58, described waste gas absorption cover 2 cover is buckled in above electrolyzer 1, the inlet mouth of described vacuum fan 3 is connected on waste gas absorption cover 2 by waste gas absorption pipe 4, the air outlet of described vacuum fan 3 is connected on the inlet mouth 50 of off gas treatment room by waste gas absorption pipe 4, described delivery pipe 58 is connected on the air outlet of off gas treatment room 5, described off gas treatment room 5 is provided with three-decker, it is respectively carbon monoxide treatment chamber 53, hydrogen fluoride trealment room 54 and solid dust room 55, carbon monoxide treatment chamber 53 is positioned at below hydrogen fluoride trealment room 54, solid dust room 55 is positioned at above hydrogen fluoride trealment room 54, the air outlet of off gas treatment room 5 is arranged on the top of solid dust room 55.
The inwall of off gas treatment room 5 is provided with four floor boss 51, every layer of boss 51 is placed with mesh plate 52, mesh plate 52 forms described carbon monoxide treatment chamber 53, hydrogen fluoride trealment room 54 and solid dust room 55, described carbon monoxide treatment chamber 53 inner side-wall is provided with heat-generating pipe, and it is placed with cupric oxide plate on mesh plate 52, cupric oxide plate is coated in woven wire, described hydrogen fluoride trealment indoor are placed with aluminium powder and gac, coated aluminum powder is in non-woven fabrics, described solid dust indoor are provided with atomizer, and atomizer is arranged on the sidewall of solid dust room.
It is provided with a groove 59 in delivery pipe 58, in groove, it is placed with aqua calcis. The sidewall of carbon monoxide treatment chamber, hydrogen fluoride trealment room and solid dust room is provided with opening 56, and opening 56 place is provided with door 57, and the surrounding of door 57 is provided with sealing-ring. Off gas treatment room 5 is an airtight cavity, and off gas treatment room and the junction of waste gas absorption pipe and the junction of off gas treatment room and delivery pipe are provided with seal gum.
Off gas treatment room 5 is a right cylinder in the present embodiment, and boss 51 is arranged on the sidewall of off gas treatment room 5, and boss 51 is arranged round right cylinder circumference, and boss is wedge shape boss.
Claims (3)
1. an electrolytic aluminum emission-control equipment, it is characterized in that: comprise waste gas absorption cover, waste gas absorption pipe, vacuum fan, off gas treatment room and delivery pipe, the inlet mouth of described vacuum fan is connected on waste gas absorption cover by waste gas absorption pipe, the air outlet of described vacuum fan is connected on the inlet mouth of off gas treatment room by waste gas absorption pipe, described delivery pipe is connected on the air outlet of off gas treatment room, described off gas treatment room is provided with three-decker, it is respectively carbon monoxide treatment chamber, hydrogen fluoride trealment room and solid dust room, carbon monoxide treatment chamber is positioned at below hydrogen fluoride trealment room, solid dust room is positioned at above hydrogen fluoride trealment room, the air outlet of off gas treatment room is arranged on the top of solid dust room, the inwall of described off gas treatment room is provided with four floor boss, every layer of boss is placed with mesh plate, mesh plate forms described carbon monoxide treatment chamber, hydrogen fluoride trealment room and solid dust room, described carbon monoxide treatment chamber inner side-wall is provided with heat-generating pipe, and on mesh plate, it is placed with cupric oxide plate, cupric oxide plate is coated in woven wire, described hydrogen fluoride trealment indoor are placed with aluminium powder and gac, coated aluminum powder is in non-woven fabrics, described solid dust indoor are provided with atomizer, atomizer is arranged on the sidewall of solid dust room, described carbon monoxide treatment chamber, the sidewall of hydrogen fluoride trealment room and solid dust room is provided with opening, opening place is provided with door, the surrounding of door is provided with sealing-ring.
2. a kind of electrolytic aluminum emission-control equipment according to claim 1, it is characterised in that: it is provided with a groove in described delivery pipe, in groove, it is placed with aqua calcis.
3. a kind of electrolytic aluminum emission-control equipment according to claim 1, it is characterized in that: described off gas treatment room is an airtight cavity, and off gas treatment room and the junction of waste gas absorption pipe and the junction of off gas treatment room and delivery pipe are provided with seal gum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410325692.7A CN104141155B (en) | 2014-07-10 | 2014-07-10 | A kind of electrolytic aluminum emission-control equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410325692.7A CN104141155B (en) | 2014-07-10 | 2014-07-10 | A kind of electrolytic aluminum emission-control equipment |
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| CN104141155A CN104141155A (en) | 2014-11-12 |
| CN104141155B true CN104141155B (en) | 2016-06-08 |
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| CN201410325692.7A Expired - Fee Related CN104141155B (en) | 2014-07-10 | 2014-07-10 | A kind of electrolytic aluminum emission-control equipment |
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| CN107502922B (en) * | 2017-10-23 | 2023-06-16 | 常宁市华兴冶化实业有限责任公司 | System and method for treating electrolytic aluminum waste gas |
| CN108854505A (en) * | 2018-06-17 | 2018-11-23 | 曾文飞 | A kind of electrolytic aluminium waste Flash Gas Compression Skid System and processing method |
| CN110670092A (en) * | 2019-10-17 | 2020-01-10 | 高严慧 | Aluminum electrolysis device |
| CN110820015B (en) * | 2019-11-25 | 2021-01-26 | 包头市新恒丰能源有限公司 | Electrolytic aluminum waste gas processing apparatus |
| CN111575742A (en) * | 2020-06-22 | 2020-08-25 | 陈焕林 | Energy-saving efficient electrolytic aluminum waste gas treatment device |
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Inventor after: Tian Haijun Inventor before: Shen Songhua |
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Effective date of registration: 20170817 Address after: Di Xiang Wen Ge Cun Shuicheng County in Guizhou province Liupanshui City Dong 553022 Patentee after: Guizhou Liupanshui Shuang yuan Aluminum Industry Co., Ltd. Address before: 313000 Zhejiang city of Huzhou Province town Wuxing District Yang Lu Dian rolling highway lies the east side of bridge Patentee before: HUZHOU ZHILI RONGHUA ALUMINUM CO., LTD. |
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