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Method for rapidly cleaning rectifying tower

A clean and fast technology, used in cleaning methods and utensils, cleaning methods using liquids, cleaning hollow objects, etc., can solve problems such as short cycle, and achieve the effect of short product cleaning cycle

Inactive Publication Date: 2019-04-16
SHANDONG LUOXIN PHARMA GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] When the rectification tower is being produced in different varieties, the relevant literature and patents on cleaning the rectification tower have not yet been reported. The present invention provides a method for quickly cleaning the rectification tower. This method can also be promoted and enlarged, the cleaning effect is obvious, and the cycle is shorter short

Method used

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Embodiment Construction

[0015] The content of the present invention will be described in further detail below through specific examples, but the content of the present invention is not limited thereto.

[0016] The present invention mainly relates to a method for quickly cleaning a rectification tower. After rectifying the cephalosporin drug solvent mother liquor 1, it is necessary to thoroughly wash the tower before replacing the cephalosporin drug solvent mother liquor 2 for rectification. The specific steps are as follows:

[0017] (1) Inspection: first check the feed valve to ensure that the valve is open;

[0018] (2) The first cleaning, water washing: continuously add water to the rectification tower through the feed pump, the feed amount is 2L, flush the feed pipeline and rectification column, and the waste liquid is discharged through the extraction pump of the tower kettle. Add 3L of water to the tower kettle through the extraction feed pump again, turn on the heating switch of the heating m...

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Abstract

The invention belongs to the field of cleaning devices and particularly relates to a method for rapidly cleaning a rectifying tower. The method for rapidly cleaning the rectifying tower comprises thesteps of water washing, alkaline washing and secondary water washing. According to the method for rapidly cleaning the rectifying tower, optimization and improvement are conducted on the basis of original cleaning, and compared with a traditional normal-pressure rectifying cleaning method, the adopted decompression rectifying cleaning method shortens the cleaning period and achieves that the contents of residual solvent and active substances in the tower are low.

Description

technical field [0001] The invention belongs to the field of cleaning equipment, and in particular relates to a method for quickly cleaning rectification equipment. Background technique [0002] In pharmaceutical chemical industry or fine chemical industry, multiple varieties are often produced. In the rectification production of changing varieties, the rectification tower needs to be thoroughly cleaned. If the cleaning cycle is short, it may not be cleaned thoroughly, which will cause crossover in the production of the next variety. Pollution; if the cleaning cycle is long, the equipment can be thoroughly cleaned, but a long cleaning cycle is not conducive to production, resulting in the extension of the entire production cycle, which is not conducive to production. Therefore need to find a kind of method of fast cleaning rectification equipment. Due to the large number of experimental varieties in the laboratory, it is necessary to frequently switch varieties for rectific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/093B08B3/08B08B3/10
CPCB08B3/08B08B3/10B08B9/093
Inventor 孙松朱志强田光珍
Owner SHANDONG LUOXIN PHARMA GRP CO LTD
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