CN1317361A - Process for purifying fume from calcining furnace of aluminium electrolyzing anode - Google Patents
Process for purifying fume from calcining furnace of aluminium electrolyzing anode Download PDFInfo
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- CN1317361A CN1317361A CN 01107307 CN01107307A CN1317361A CN 1317361 A CN1317361 A CN 1317361A CN 01107307 CN01107307 CN 01107307 CN 01107307 A CN01107307 A CN 01107307A CN 1317361 A CN1317361 A CN 1317361A
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- flue gas
- anode
- calcining furnace
- aluminium
- tar
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Abstract
A method for cleaning the flue fume of anode calciner for aluminium electrolysis includes pre-dusting, cooling in direct-spray full-evaporation horizontal cooling tower to lower its temp to 80-90 deg.C, removing tar by dry-type electric tar capture, and exhausting via draugh fan and chimney. Its advantages include high cleaning efficiency, simple process, less investment and no pollution to environment and alumina.
Description
The present invention relates to a kind of process for purifying fume from calcining furnace of aluminium electrolyzing anode.
At present, in electrolytic aluminium plant,, mainly adopt alkali liquid washing wet cleaning technology and be the dry cleaning technology of adsorbent with the aluminium oxide for the purification of aluminium electrolyzing anode roaster flue gas.The waste water that existing alkali liquid washing wet cleaning technology mainly exists discharging causes secondary pollution to the water body resource and to problem such as the purifying rate of tar in the flue gas and dust is low; And existing be that the dry cleaning technology of adsorbent exists the pollution problem to aluminium oxide of dust in flue gas and tar with the aluminium oxide, because its carbon containing and tar content are greater than 1.0% behind the alumina adsorption purification flue gas, aluminium oxide returns electrolytic cell and uses easily generation glance coal (tar) secondary volatilization pollution and influence current efficiency.Therefore existing purifying fume from calcining furnace of aluminium electrolyzing anode technology is still not ideal enough in actual applications.
The objective of the invention is: provide a kind of and can produce not pollute and do not use alumina adsorbant, the process for purifying fume from calcining furnace of aluminium electrolyzing anode high the water body resource to the purifying rate of tar in the flue gas and dust.
The present invention is achieved in that it is first by the pre-duster dedusting with the flue gas that anode-baking furnace produces, carried out cooling processing through the horizontal cooling tower of pervaporation of directly spraying again by the flue gas after the pre-duster dedusting, make the temperature of its flue gas reduce to 80 ℃～90 ℃, and then the flue gas after will lowering the temperature carries out detar and dust removal process through the dry type electrical tar precipitator, will discharge by air-introduced machine and chimney through the flue gas after detar and the dust removal process again.
Owing to adopted technique scheme, the present invention carries out dry cleaning to tar, non-wastewater discharge, thus do not exist water body resource secondary pollution problem, but also help recycling to tar; In addition, because the present invention does not use aluminium oxide as adsorbent, therefore there is not the pollution problem of dust and tar to aluminium oxide yet; In addition, efficiency of dust collection of the present invention and the efficient of removing tar all reach more than 90%, its pollutant emission concentration is lower than the national standard emission limit, and the tar (pitch) of the dry type electrical tar precipitator that adopts in the present invention recovery, can be used as secondary fuel and use, or use as the auxiliary material of building materials.Therefore, the present invention compares with existing purifying fume from calcining furnace of aluminium electrolyzing anode technology, and the present invention has that purification efficiency height, technology are simple, investment is little, energy-conservation, do not produce advantage such as pollution to environment with to aluminium oxide.
Embodiments of the invention: the pre-duster that is adopted in the present invention, direct spraying pervaporation horizontal cooling tower, the dry type electrical tar precipitator, equipment such as air-introduced machine all can adopt the finished product sold on the market or order goods by the technology condition that reality is used, make by professional manufactory, when carrying out the gas cleaning processing, the flue gas that anode-baking furnace is produced passes through the pre-duster dedusting earlier, carried out cooling processing through the horizontal cooling tower of pervaporation of directly spraying again by the flue gas after the pre-duster dedusting, make the temperature of its flue gas reduce to 80 ℃～90 ℃, and then the flue gas after will lowering the temperature carries out detar and dust removal process through the dry type electrical tar precipitator, will discharge by air-introduced machine and chimney through the flue gas after detar and the dust removal process to get final product again.
Claims (1)
1, a kind of process for purifying fume from calcining furnace of aluminium electrolyzing anode, it is characterized in that: it passes through the pre-duster dedusting earlier with the flue gas that anode-baking furnace produces, carried out cooling processing through the horizontal cooling tower of pervaporation of directly spraying again by the flue gas after the pre-duster dedusting, make the temperature of its flue gas reduce to 80 ℃～90 ℃, and then the flue gas after will lowering the temperature carries out detar and dust removal process through the dry type electrical tar precipitator, will discharge by air-introduced machine and chimney through the flue gas after detar and the dust removal process again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107307 CN1127998C (en) | 2001-03-30 | 2001-03-30 | Process for purifying fume from calcining furnace of aluminium electrolyzing anode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107307 CN1127998C (en) | 2001-03-30 | 2001-03-30 | Process for purifying fume from calcining furnace of aluminium electrolyzing anode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1317361A true CN1317361A (en) | 2001-10-17 |
| CN1127998C CN1127998C (en) | 2003-11-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01107307 Expired - Lifetime CN1127998C (en) | 2001-03-30 | 2001-03-30 | Process for purifying fume from calcining furnace of aluminium electrolyzing anode |
Country Status (1)
| Country | Link |
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| CN (1) | CN1127998C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844018A (en) * | 2010-07-08 | 2010-09-29 | 浙江华东铝业股份有限公司 | Control method for anode-baking flue gas dust collection classified spraying |
| CN101485948B (en) * | 2008-01-17 | 2010-11-10 | 中国铝业股份有限公司 | Method for treating fluidizing reactor flue gas in production of aluminum oxide |
| CN101886882A (en) * | 2010-06-13 | 2010-11-17 | 中国铝业股份有限公司 | Smoke processing method for alumina roasting furnace |
| CN101900492A (en) * | 2010-08-30 | 2010-12-01 | 中国铝业股份有限公司 | Anti-scabing method of aluminum oxide roasting furnace flue gas waste heat recovery process |
| CN101915515A (en) * | 2010-08-30 | 2010-12-15 | 中国铝业股份有限公司 | Method for recycling flue gas waste heat of alumina roasting furnace |
| CN102091507A (en) * | 2010-12-28 | 2011-06-15 | 湖南晟通科技集团有限公司 | Method for prolonging service life of spray tower |
| CN102133502A (en) * | 2010-12-28 | 2011-07-27 | 湖南晟通科技集团有限公司 | Spray valve control system of spray tower |
| CN102151469A (en) * | 2011-01-21 | 2011-08-17 | 任力军 | Method for recovering coal tar and removing sulfur and dust from tail gases of coal-burning boilers and furnaces |
| CN102358842A (en) * | 2011-07-06 | 2012-02-22 | 中国铝业股份有限公司 | Oil-water separation and control method for asphalt melting and flue gas purification system and tar storage tank |
| CN103134336A (en) * | 2013-03-04 | 2013-06-05 | 中国瑞林工程技术有限公司 | Anode furnace smoke treatment system and method |
| US8894921B2 (en) | 2007-03-22 | 2014-11-25 | Alstom Technology Ltd. | Flue gas cooling and cleaning system |
| CN108070398A (en) * | 2016-11-07 | 2018-05-25 | 简阳市龙兴炭素有限公司 | Carbon roasting furnace asphalt smoke gas purifying recoverying and utilizing method |
| CN110893307A (en) * | 2019-12-06 | 2020-03-20 | 湖北中颐和环境工程有限公司 | Flue gas purification process for carbon roasting |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381612C (en) * | 2006-11-28 | 2008-04-16 | 沈阳铝镁设计研究院 | Fume purifying process and system for aluminium electrolyzing anode roaster |
-
2001
- 2001-03-30 CN CN 01107307 patent/CN1127998C/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8894921B2 (en) | 2007-03-22 | 2014-11-25 | Alstom Technology Ltd. | Flue gas cooling and cleaning system |
| CN101485948B (en) * | 2008-01-17 | 2010-11-10 | 中国铝业股份有限公司 | Method for treating fluidizing reactor flue gas in production of aluminum oxide |
| CN101886882A (en) * | 2010-06-13 | 2010-11-17 | 中国铝业股份有限公司 | Smoke processing method for alumina roasting furnace |
| CN101844018A (en) * | 2010-07-08 | 2010-09-29 | 浙江华东铝业股份有限公司 | Control method for anode-baking flue gas dust collection classified spraying |
| CN101915515A (en) * | 2010-08-30 | 2010-12-15 | 中国铝业股份有限公司 | Method for recycling flue gas waste heat of alumina roasting furnace |
| CN101900492A (en) * | 2010-08-30 | 2010-12-01 | 中国铝业股份有限公司 | Anti-scabing method of aluminum oxide roasting furnace flue gas waste heat recovery process |
| CN102091507A (en) * | 2010-12-28 | 2011-06-15 | 湖南晟通科技集团有限公司 | Method for prolonging service life of spray tower |
| CN102133502A (en) * | 2010-12-28 | 2011-07-27 | 湖南晟通科技集团有限公司 | Spray valve control system of spray tower |
| CN102091507B (en) * | 2010-12-28 | 2013-07-31 | 湖南晟通科技集团有限公司 | Method for prolonging service life of spray tower |
| CN102133502B (en) * | 2010-12-28 | 2013-07-31 | 湖南晟通科技集团有限公司 | Spray valve control system of spray tower |
| CN102151469A (en) * | 2011-01-21 | 2011-08-17 | 任力军 | Method for recovering coal tar and removing sulfur and dust from tail gases of coal-burning boilers and furnaces |
| CN102358842A (en) * | 2011-07-06 | 2012-02-22 | 中国铝业股份有限公司 | Oil-water separation and control method for asphalt melting and flue gas purification system and tar storage tank |
| CN103134336A (en) * | 2013-03-04 | 2013-06-05 | 中国瑞林工程技术有限公司 | Anode furnace smoke treatment system and method |
| CN103134336B (en) * | 2013-03-04 | 2014-12-10 | 中国瑞林工程技术有限公司 | Anode furnace smoke treatment system and method |
| CN108070398A (en) * | 2016-11-07 | 2018-05-25 | 简阳市龙兴炭素有限公司 | Carbon roasting furnace asphalt smoke gas purifying recoverying and utilizing method |
| CN110893307A (en) * | 2019-12-06 | 2020-03-20 | 湖北中颐和环境工程有限公司 | Flue gas purification process for carbon roasting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1127998C (en) | 2003-11-19 |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUIYANG ALUMINUM AND MAGNESIUM DESIGN INSTITUTE CO Free format text: FORMER OWNER: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. Effective date: 20110721 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 550001 NO. 208, BEIJING ROAD, GUIYANG CITY, GUIZHOU PROVINCE TO: 550081 NO. 2, JINZHU ROAD, JINYANG NEW DISTRICT, GUIYANG CITY, GUIZHOU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110721 Address after: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Patentee after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550001 No. 208, Beijing Road, Guiyang, Guizhou Patentee before: Guiyang Aluminium and Magnesium Design Inst. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20031119 |