CN103160862A - Device for purifying high-concentration smoke in an aluminum electrolytic cell - Google Patents
Device for purifying high-concentration smoke in an aluminum electrolytic cell Download PDFInfo
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- CN103160862A CN103160862A CN2011104168421A CN201110416842A CN103160862A CN 103160862 A CN103160862 A CN 103160862A CN 2011104168421 A CN2011104168421 A CN 2011104168421A CN 201110416842 A CN201110416842 A CN 201110416842A CN 103160862 A CN103160862 A CN 103160862A
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Abstract
The invention discloses a device for purifying high-concentration smoke in an aluminum electrolytic cell through a material box. The device comprises a crust breaking hammer head (1), a discharging pipe (4), a material box (6), a material box exhaust pipe (7), a feeder (8) and a flue (9), wherein the discharging pipe (4) is connected with the feeder (8); the upper end of the material box exhaust pipe (7) is arranged in the material box (6), and the lower end of the material box exhaust pipe (7) extends out of the material box (6) and is connected with the flue (9); the crust breaking hammer head (1) is connected with a fire eyeshade (2); the lower opening of the fire eyeshade (2) is covered with a covering material; the side of the fire eyeshade (2) is connected with the discharging pipe (4); the side surface of the discharging pipe (4) is connected with a steel pipe (5); the other end of the steel pipe (5) is inserted into the material box (6) from the upper side of the material box (6) and is inserted into aluminum oxide; and a fan (10) is connected into the steel pipe (5). The device has a simple structure, efficiently purifies the smoke in the electrolytic cell nearby, can improve the purification efficiency, and reduces the smoke treatment quantity of the smoke purification device.
Description
Technical field
The present invention relates to a kind of prebaked cell for aluminum-reduction flue gas through the refining plant of hopper.
Background technology
Electrolysis of aluminum is high temperature fused salt electrolysis, and electrochemical process carries out in the molten cryolitic of 960 ℃, and sodium aluminum fluoride is Sodium Fluoride and fluoridizes Aluminum Compounds.Fluorochemical in the molten cryolitic of this high temperature can volatilize, and is harmful to biology along with electrolysis flue gas is discharged, and is the principal pollutant of electrolyzer.
Present electrolytic aluminium factory all has smoke eliminator.The flue gas of electrolyzer collects through collection, mixes with aluminum oxide in smoke eliminator, allows fluorochemical in the alumina adsorption flue gas; Flue gas after purification enters atmosphere, and it is reinforced that aluminum oxide is transported to electrolytic bath feed box electrolysis groove.
Due to the complicacy of cell construction, the groove cover that is used for covering and sealing is movable aluminum design, can free-handly remove.One platform trough has tens groove covers, the gap is arranged week with week between the groove cover.For fear of smoke spillage, the exhausting amount of the vacuum fan of smoke eliminator is approximately 100 times of electrolyzer free air delivery, namely enters the flue gas of smoke eliminator, and Pollutant levels are very low.Like this, the processing of smoke eliminator is large-minded, and efficient is low, and smoke eliminator fluoro-containing alumina out also also has the ability of further Adsorption of fluoride compound.
Summary of the invention
The technical problem to be solved in the present invention is, the refining plant of a kind of aluminium cell high-concentration fume through hopper is provided, with the efficient that overcomes the smoke eliminator that prior art exists low wait not enough.
The present invention is by the following technical solutions: it comprises crust-breaking chips, tremie pipe, hopper, hopper vapor pipe, feeder, flue, and tremie pipe is connected with feeder, and hopper vapor pipe upper end is arranged in hopper, the lower end stretches out that hopper is outer to be connected with flue; Crust-breaking chips connects the pinkeye cover, and pinkeye cover end opening is covered by mulch, and pinkeye cover side is connected with tremie pipe, and the tremie pipe side is connected with steel pipe, and the other end of steel pipe is the insertion hopper above hopper.
The pinkeye cover is steel.
The other end of steel pipe insertion hopper and inserting in alumina material above hopper.
The steel pipe connecting fan.
Every electrolyzer has 4 to 6 crust breaking and loading devices that evenly are configured in the groove center line, and each crust breaking and loading device has crust breaking cylinder and tup, alumina reservoir and volumetric feed device.General every 1 to 3 minute crust breaking and loading once, crust-breaking chips is opened electrolyte crust, feeder is added aluminum oxide.The high-temperature gas that electrolysis produces is all discharged from the perforate of crust breaking, forms flame, usually all is referred to as pinkeye.
Aluminum oxide in hopper has adsorption to fluorochemical, and fluoride concn is higher, and adsorption efficiency is higher, and absorption reaction is carried out faster.These flue gases that import from steel pipe are not by Dilution air, and in hopper, alumina amount is many, so the fluorochemical in flue gas can be by alumina adsorption in hopper, flue gas is purified.Dust in flue gas also can be deposited in hopper.Purified gas enters the smoke exhaust pipe of electrolyzer through hopper vapor pipe and flue.Due to the high density of fluorochemical and a large amount of aluminum oxide of hopper, can obtain high purification efficiency.Like this due to good purification, thereby the exhausting amount of the vacuum fan of smoke eliminator can reduce, and power consumption reduces.
The present invention is simple in structure, allows the electrolyzer flue gas obtain high-efficient purification nearby, can improve purification efficiency, reduces the flue gas treatment capacity of smoke eliminator.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is another kind of structural representation of the present invention, has connected blower fan on the basis of Fig. 1 in steel pipe, and the other end of steel pipe insertion hopper and inserting in alumina material above hopper.
Embodiment
Embodiments of the invention: as shown in Figure 1, it comprises crust-breaking chips 1, tremie pipe 4, hopper 6, hopper vapor pipe 7, feeder 8, flue 9, tremie pipe 4 is connected with feeder 8, and hopper vapor pipe 7 upper ends are arranged in hopper 6, the lower end stretches out that hopper 6 is outer to be connected with flue 9; Crust-breaking chips 1 connects pinkeye cover 2, and pinkeye cover 2 end openings are covered by mulch, and pinkeye cover 2 sides are connected with tremie pipe 4, and tremie pipe 4 sides are connected with steel pipe 5, and the other end of steel pipe 5 is insertion hopper 6 above hopper 6.
In Fig. 1, only having pinkeye cover and steel pipe is the parts that the present invention newly increases, and miscellaneous part is all the existing existing parts of electrolyzer.
The pinkeye cover is steel, and end opening is covered by mulch, forms sealing, the flue gas of discharging in groove not can with air mixed, be referred to as high-concentration fume.These high-concentration fumes can only enter hopper through steel pipe 5 from tremie pipe 4 as shown by arrows in FIG. again.
Aluminum oxide in hopper has adsorption to fluorochemical, and fluoride concn is higher, and adsorption efficiency is higher, and absorption reaction is carried out faster.These flue gases that import from steel pipe 5 are not by Dilution air, and in hopper, alumina amount is many, so the fluorochemical in flue gas can be by alumina adsorption in hopper, flue gas is purified.Dust in flue gas also can be deposited in hopper.Purified gas enters the smoke exhaust pipe of electrolyzer through hopper vapor pipe 7 and flue 9.
Characteristics of the present invention have: the first, be provided with the pinkeye cover, and be used for sealing and collect flue gas, guarantee that flue gas does not leak, not with air mixed.The second, the flue gas of high density is imported alumina reservoir nearby, make fluorochemical and the reaction of the aluminum oxide in hopper in flue gas, thereby flue gas is purified.Due to the high density of fluorochemical and a large amount of aluminum oxide of hopper, can obtain high purification efficiency.
Illustrated in Figure 2 is another embodiment of the present invention.Compared to Figure 1, Fig. 2 has increased a blower fan 10, and in addition, steel pipe 5 is inserted deeply in hopper, inserts in alumina material.After increasing blower fan 10, make flue gas have enough pressure to discharge in alumina material, pass in the process of alumina material at flue gas, with aluminum oxide, the closest contacting arranged, can be purified thoroughly.
Claims (4)
1. an aluminium cell high-concentration fume is through the refining plant of hopper, it comprises crust-breaking chips (1), tremie pipe (4), hopper (6), hopper vapor pipe (7), feeder (8), flue (9), tremie pipe (4) is connected with feeder (8), and hopper vapor pipe (7) upper end is arranged in hopper (6), the lower end stretches out that hopper (6) is outer to be connected with flue (9); It is characterized in that: crust-breaking chips (1) connects pinkeye cover (2), pinkeye cover (2) end opening is covered by mulch, pinkeye cover (2) side is connected with tremie pipe (4), tremie pipe (4) side is connected with steel pipe (5), and the other end of steel pipe (5) is insertion hopper (6) above hopper (6).
2. aluminium cell high-concentration fume according to claim 1 through the refining plant of hopper, is characterized in that: pinkeye cover (2) is steel.
3. aluminium cell high-concentration fume according to claim 1 through the refining plant of hopper, is characterized in that: the other end of steel pipe (5) insertion hopper (6) and inserting in alumina material above hopper (6).
4. aluminium cell high-concentration fume according to claim 1 through the refining plant of hopper, is characterized in that: steel pipe (5) connecting fan (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110416842.1A CN103160862B (en) | 2011-12-14 | 2011-12-14 | Aluminium cell high-concentration fume is through the refining plant of hopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110416842.1A CN103160862B (en) | 2011-12-14 | 2011-12-14 | Aluminium cell high-concentration fume is through the refining plant of hopper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103160862A true CN103160862A (en) | 2013-06-19 |
| CN103160862B CN103160862B (en) | 2015-11-18 |
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| CN201110416842.1A Active CN103160862B (en) | 2011-12-14 | 2011-12-14 | Aluminium cell high-concentration fume is through the refining plant of hopper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947981A (en) * | 2016-08-05 | 2017-07-14 | 高德金 | A kind of aluminum oxide crust breaking and loading device |
| CN106978610A (en) * | 2017-04-10 | 2017-07-25 | 中国铝业股份有限公司 | A kind of method for reducing aluminium cell radiating and groove fume emission |
| CN108004566A (en) * | 2018-01-29 | 2018-05-08 | 贵州创新轻金属工艺装备工程技术研究中心有限公司 | The pinkeye cover gas collecting apparatus and its application method of a kind of aluminium cell |
| CN110359063A (en) * | 2019-09-02 | 2019-10-22 | 中南大学 | A kind of automatic controllable baiting apparatus of aluminium electroloysis |
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| US3977950A (en) * | 1974-02-28 | 1976-08-31 | Aluminum Pechiney | Process and apparatus for collection of gases |
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2011
- 2011-12-14 CN CN201110416842.1A patent/CN103160862B/en active Active
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947981A (en) * | 2016-08-05 | 2017-07-14 | 高德金 | A kind of aluminum oxide crust breaking and loading device |
| CN106947981B (en) * | 2016-08-05 | 2022-01-07 | 高德金 | Alumina crust breaking and feeding device |
| CN106978610A (en) * | 2017-04-10 | 2017-07-25 | 中国铝业股份有限公司 | A kind of method for reducing aluminium cell radiating and groove fume emission |
| CN106978610B (en) * | 2017-04-10 | 2019-04-16 | 中国铝业股份有限公司 | A method of reducing aluminium cell heat dissipation and slot flue gas emission |
| CN108004566A (en) * | 2018-01-29 | 2018-05-08 | 贵州创新轻金属工艺装备工程技术研究中心有限公司 | The pinkeye cover gas collecting apparatus and its application method of a kind of aluminium cell |
| CN108004566B (en) * | 2018-01-29 | 2024-03-26 | 贵州创新轻金属工艺装备工程技术研究中心有限公司 | Fire eye cover gas collecting device of aluminum electrolysis cell and use method thereof |
| CN110359063A (en) * | 2019-09-02 | 2019-10-22 | 中南大学 | A kind of automatic controllable baiting apparatus of aluminium electroloysis |
Also Published As
| Publication number | Publication date |
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| CN103160862B (en) | 2015-11-18 |
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Effective date of registration: 20171214 Address after: Jin Zhu Xi Lu Lake District 550081 Guizhou city of Guiyang province No. 2 aluminum technology building Patentee after: Guizhou innovation light metal processing equipment Engineering Technology Research Center Co Ltd Address before: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Patentee before: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. |
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