CN101972554A - Anti-blocking rectifying tower and cleaning process thereof - Google Patents
Anti-blocking rectifying tower and cleaning process thereof Download PDFInfo
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- CN101972554A CN101972554A CN2010105185538A CN201010518553A CN101972554A CN 101972554 A CN101972554 A CN 101972554A CN 2010105185538 A CN2010105185538 A CN 2010105185538A CN 201010518553 A CN201010518553 A CN 201010518553A CN 101972554 A CN101972554 A CN 101972554A
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- toluene
- tower
- column
- polymer
- rectification column
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Abstract
The invention relates to an anti-blocking rectifying tower and a cleaning process thereof. Adding toluene at the bottom of a packing rectifying tower, heating the toluene to the temperature of 60-80 ℃ at the bottom of the tower, conveying the heated toluene to the top of the tower from the bottom of the tower by using a reflux pump, performing forced circulation, and performing circular washing; when the temperature rises to 80 ℃, gas of the back flushing pipe is used for back flushing, the blocking object is blown and dissolved with toluene from the filler layer, the toluene is used for dissolving and diluting the polymer in the filler layer, and the polymer is removed from the filler layer by using the mixing and settling principle, so that the operation is safe, and the cost is low.
Description
Technical field:
The present invention and a kind of rectifying column, particularly a kind of anti-blocking rectifying column and cleaning thereof.
Background technology:
Because benzyl chloride is met iron ion polymerization can be taken place under high-temperature condition, the equipment that benzyl chloride production is used is carbon steel lining enamel equipment, in the long-time running process, owing to can causing enamel, enamel equipment producer workmanship reason comes off, slight polymerization can take place in iron ion that spills and benzyl chloride, and after the long-time running, the polymer of formation can result in blockage to inner-tower filling material in rectifying column, can have influence on product quality and output when serious, cause production cost to raise.
Summary of the invention:
The purpose of this invention is to provide a kind of anti-blocking rectifying column and cleaning thereof.
The technical scheme that the present invention takes is:
A kind of anti-blocking rectifying column comprises stuffing rectification column, links to each other with reflux pump by the solvent circulation pipe with cat head at the bottom of the tower of stuffing rectification column, and the middle part of stuffing rectification column links to each other with the air supply manifold by recoil tube.
The cleaning of above-mentioned anti-blocking rectifying column: at the bottom of the still of stuffing rectification column, drop into toluene, toluene is heated to column bottom temperature 60-80 ℃, the toluene of heating is transported to cat head with reflux pump at the bottom of tower, carry out forced circulation, carry out circulation flushing; When treating that temperature rises to 80 ℃, utilize the gas of recoil tube to recoil, tamper in the packing layer and toluene blow moltenly, utilize toluene to come polymer in the dissolved dilution packing layer, utilize miscible sedimentation principle, polymer is removed in packing layer.
The present invention cleans by the high temperature forced circulation, can wash down the polymer in the packing layer, has improved the separating effect of filler, makes normally safe and stable operation of rectifying column, thereby has guaranteed product yield and quality, has reduced to produce rising this.
Description of drawings
Fig. 1 is the anti-blocking rectifying column structural representation of the present invention;
Wherein: 1, stuffing rectification column, 2, the solvent circulation pipe, 3, reflux pump, 4, air supply manifold 5, recoil tube.
The specific embodiment
A kind of anti-blocking rectifying column comprises stuffing rectification column 1, links to each other with reflux pump 3 by solvent circulation pipe 2 with cat head at the bottom of the tower of stuffing rectification column 1, and the middle part of stuffing rectification column 1 links to each other with air supply manifold 4 by recoil tube 5.
Embodiment 1
The cleaning of anti-blocking rectifying column: at the bottom of the still of stuffing rectification column, drop into toluene, toluene is heated to 60 ℃ of temperature, the toluene of heating is transported to cat head with reflux pump at the bottom of tower, carry out forced circulation, carry out circulation flushing; When treating that temperature rises to 80 ℃ of degree, utilize the gas of recoil tube to recoil, tamper in the packing layer and toluene blow moltenly, utilize toluene to come polymer in the dissolved dilution packing layer, utilize miscible sedimentation principle, polymer is removed in packing layer.
Claims (2)
1. an anti-blocking rectifying column comprises stuffing rectification column, it is characterized in that, links to each other with reflux pump by the solvent circulation pipe with cat head at the bottom of the tower of stuffing rectification column, and the middle part of stuffing rectification column links to each other with the air supply manifold by recoil tube.
2. the cleaning of the described anti-blocking rectifying column of claim 1: it is characterized in that, at the bottom of the still of stuffing rectification column, drop into toluene, toluene is heated to column bottom temperature 60-80 ℃, the toluene of heating is transported to cat head with reflux pump at the bottom of tower, carry out forced circulation, carry out circulation flushing; When treating that temperature rises to 80 ℃, utilize the gas of recoil tube to recoil, tamper in the packing layer and toluene blow moltenly, utilize toluene to come polymer in the dissolved dilution packing layer, utilize miscible sedimentation principle, polymer is removed in packing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010518553A CN101972554B (en) | 2010-10-26 | 2010-10-26 | Anti-blocking rectifying tower and cleaning process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010518553A CN101972554B (en) | 2010-10-26 | 2010-10-26 | Anti-blocking rectifying tower and cleaning process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101972554A true CN101972554A (en) | 2011-02-16 |
| CN101972554B CN101972554B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010518553A Active CN101972554B (en) | 2010-10-26 | 2010-10-26 | Anti-blocking rectifying tower and cleaning process thereof |
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| Country | Link |
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| CN (1) | CN101972554B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847334A (en) * | 2012-09-14 | 2013-01-02 | 清华大学 | Method and apparatus for rectifying iodine-containing hydriodic acid liquid |
| CN106583324A (en) * | 2016-12-28 | 2017-04-26 | 宜宾石平香料有限公司 | Cleaning method for corrugated packing of rectifying towers |
| CN108483541A (en) * | 2018-04-12 | 2018-09-04 | 重庆市环境保护工程设计研究院有限公司 | High-performance anti-compaction distilling apparatus |
| CN108525334A (en) * | 2018-04-12 | 2018-09-14 | 重庆市环境保护工程设计研究院有限公司 | Backpulsing distilling apparatus |
| CN113230686A (en) * | 2021-05-25 | 2021-08-10 | 安徽硅宝有机硅新材料有限公司 | Continuous rectification equipment and method applied to silane coupling agent in photovoltaic industry |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020052735A (en) * | 2000-12-26 | 2002-07-04 | 이구택 | Method for cleaning the distilation tower with tar and ammonia water |
| CN101343208A (en) * | 2008-08-22 | 2009-01-14 | 山东聊城中盛蓝瑞化工有限公司 | Desorption technique for methylbenzene in tail gas from benzyl chloride preparation |
| CN201815135U (en) * | 2010-10-26 | 2011-05-04 | 山东聊城中盛蓝瑞化工有限公司 | Anti-blocking rectifying tower |
| JP7083801B2 (en) * | 2019-12-20 | 2022-06-13 | 本田技研工業株式会社 | Positioning device for plate materials |
-
2010
- 2010-10-26 CN CN201010518553A patent/CN101972554B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020052735A (en) * | 2000-12-26 | 2002-07-04 | 이구택 | Method for cleaning the distilation tower with tar and ammonia water |
| CN101343208A (en) * | 2008-08-22 | 2009-01-14 | 山东聊城中盛蓝瑞化工有限公司 | Desorption technique for methylbenzene in tail gas from benzyl chloride preparation |
| CN201815135U (en) * | 2010-10-26 | 2011-05-04 | 山东聊城中盛蓝瑞化工有限公司 | Anti-blocking rectifying tower |
| JP7083801B2 (en) * | 2019-12-20 | 2022-06-13 | 本田技研工業株式会社 | Positioning device for plate materials |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847334A (en) * | 2012-09-14 | 2013-01-02 | 清华大学 | Method and apparatus for rectifying iodine-containing hydriodic acid liquid |
| CN102847334B (en) * | 2012-09-14 | 2015-10-28 | 清华大学 | A kind of rectificating method containing iodine hydroiodic acid feed liquid |
| CN106583324A (en) * | 2016-12-28 | 2017-04-26 | 宜宾石平香料有限公司 | Cleaning method for corrugated packing of rectifying towers |
| CN108483541A (en) * | 2018-04-12 | 2018-09-04 | 重庆市环境保护工程设计研究院有限公司 | High-performance anti-compaction distilling apparatus |
| CN108525334A (en) * | 2018-04-12 | 2018-09-14 | 重庆市环境保护工程设计研究院有限公司 | Backpulsing distilling apparatus |
| CN113230686A (en) * | 2021-05-25 | 2021-08-10 | 安徽硅宝有机硅新材料有限公司 | Continuous rectification equipment and method applied to silane coupling agent in photovoltaic industry |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101972554B (en) | 2012-10-03 |
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| CP03 | Change of name, title or address |
Address after: 252211 Shandong Liaocheng High-tech Industrial Development Zone Luxi Industrial Park Patentee after: Liaocheng Luxi Chlorobenzyl Chemical Co., Ltd. Address before: 252211 Shandong city of Liaocheng province Dong'e County Gu Guan Tun Zhen Luxi Chemical Industrial Park Patentee before: Shandong Liaocheng Zhongsheng Lanrui Chemical Industry Co., Ltd. |
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Effective date of registration: 20220523 Address after: 252211 new chemical materials Industrial Park, Liaocheng high tech Industrial Development Zone, Shandong Province Patentee after: CHLOR-ALKALI CHEMICAL BRANCH OF LUXI CHEMICAL GROUP Co.,Ltd. Address before: 252211 Shandong Liaocheng High-tech Industrial Development Zone Luxi Industrial Park Patentee before: Liaocheng Luxi Chlorobenzyl Chemical Co.,Ltd. |
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| TR01 | Transfer of patent right |