Cleaning control method for extraction liquid membrane separation equipment of paper-making reconstituted tobacco leaves
A technology for reconstituted tobacco leaves and control methods, which is applied in the fields of tobacco, tobacco treatment, and tobacco preparation, and can solve problems such as difficulty in guaranteeing cleaning effect, decline in membrane flux and separation effect, and complex components of reconstituted tobacco leaf leaching liquid.
Active Publication Date: 2022-05-10
HENAN CIGARETTE IND TOBACCO SLICE
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Problems solved by technology
However, the composition of the reconstituted tobacco leaf leaching solution is complex. After the silicon carbide ceramic membrane separation equipment has been in operation for a period of time, the surface of the membrane tube is covered by a scale layer, and the membrane flux and separation effect are greatly reduced, which seriously affects the continuous and stable operation of production.
[0004] At present, common silicon carbide ceramic membrane cleaning methods mainly include physical methods and chemical methods. However, due to the different scale components, the existing cleaning methods and cleaning agents are not suitable for papermaking reconstituted tobacco membrane separation equipment, and the cleaning effect is difficult. Compared with other industrial equipment, the membrane tube is more precise, and the cleaning steps are complicated, requiring cleaning operators to have a higher professional level. If there are more human interventions in each cleaning step, the probability of misoperation or improper operation will be higher. The stable operation of liquid extraction and membrane separation equipment and the whole line has brought huge hidden dangers
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[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0030] The present invention provides an embodiment of a cleaning control method for liquid membrane separation equipment for reconstituted tobacco leaf leaching by papermaking method, combining figure 1 As shown, can include:
[0031] Step S0 , monitoring the cleaning mode instruction sent by the user in real time, and the cleaning mode instruction includes a flushing mode instruction or a soaking mode instruction.
[0032] After receiving the flushing mode command (usually in daily production), step S10 is performed to cont...
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The invention discloses a cleaning control method for a liquid membrane separation equipment of paper-making reconstituted tobacco leaf leaching. In-depth cleaning can be divided into washing mode and soaking mode. The washing mode mainly executes the established clean water washing process, and after a certain number of clean water washing, it is changed to the chemical washing process alternately implemented according to the established links; the soaking mode mainly uses The chemical solvent is immersed for a long time, and the centrifugal pump is used for chemical flushing in the immersion interval. The invention is easy to operate, can effectively ensure the cleaning effect, and avoid equipment damage and production caused by manual misoperation, miscleaning or untimely cleaning. stagnation, etc.
Description
technical field [0001] The invention relates to the field of tobacco processing, in particular to a method for cleaning and controlling liquid membrane separation equipment for leaching reconstituted tobacco leaves by a papermaking method. Background technique [0002] During the production process of reconstituted tobacco leaves by the papermaking method, if the suspended solids and macromolecular substances in the leaching solution cannot be effectively removed, they will easily adhere and scale on the heat exchanger tubes during the subsequent evaporation and concentration process, resulting in heat transfer resistance Increased, increased loss of aroma substances, shortened cleaning cycle of evaporative concentration equipment, increased steam consumption, etc. Excessive macromolecular substances and suspended solids will also increase the viscosity of the concentrate, affect the stability of the coating rate, and cause quality problems such as poor product softness, eas...
Claims
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IPC IPC(8): A24B3/14A24B15/24A24B15/18
CPCA24B3/14A24B15/24A24B15/18
Inventor 闫瑛黄捍平李锦田晓辉张利涛陈顺辉牛群
Owner HENAN CIGARETTE IND TOBACCO SLICE