Tobacco sheet low-concentration pulping control system and control method
A control system and technology for tobacco sheets, which are applied in the fields of tobacco, tobacco preparation, electrical program control, etc., can solve the problems of large fluctuations in process indicators such as pulp beating degree of output pulp, affecting product quality stability, and pulping quality instability, etc. Achieve the effect of improving and stabilizing pulping quality, improving stability and solving practical problems
Active Publication Date: 2014-04-23
CHINA TOBACCO YUNNAN REMFG TOBACCO CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to provide a control system and control method for low-consistency pulping of tobacco sheets in order to solve the deficiencies in the prior art, so as to solve the problem of low production efficiency in the production process of low-consistency pulping of reconstituted tobacco leaves by papermaking. Low energy consumption, large fluctuations in technological indicators such as beating degree of output pulp, unstable pulping quality, and affecting the stability of product quality
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[0020] Such as figure 1 As shown, the present invention is used for the control system and control method of low-consistency pulping of tobacco flakes as follows:
[0021] a) Sequentially set a slurry pump 7, a concentration detector 8, and a pressure sensor 9 in the main slurry inlet pipeline on the main slurry inlet pipeline 6 between the slurry outlet tank 5 and the first refiner, after connecting to the concentration detector 8 A pressure relief automatic regulating valve 11 for adjusting the pulp inlet pressure of the first refiner is installed on the return pipe 10 between the pulp inlet main pipeline and the pulp outlet tank; the real-time data of the pulp inlet main pipeline pressure sensor 9 is collected by the PLC control device , compared with the pressure setting value of the main slurry feeding pipeline input by the upper computer, after the PID calculation and adjustment by the PLC control device, output a 4-20mA standard signal to the pressure relief automatic r...
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Provided is a tobacco sheet low-concentration pulping control system. A pulp outlet pump (7), a concentration detector (8) and a pulp inlet main pipeline pressure sensor (9) are arranged on a pulp inlet main pipeline (6) between a pulp outlet chest (5) and a first pulping machine in sequence, and a pressure relief automatic adjusting valve (11) is arranged on a return pipeline (10) between the pulp inlet main pipeline connected behind the concentration detector and the pulp outlet chest. A water supply automatic adjusting valve (13) is arranged on a water supply branch pipeline (12). Subsection pipeline pressure sensors (4) and the like are arranged on pulp inlet pipelines in front of the first pulping machine, a second pulping machine and a third pulping machine respectively. The problems that in tobacco low-concentration pulping production through a paper-making method, production efficiency is low, energy consumption is serious, the beating degree and other technical indexes of produced pulp are large in fluctuation, and pulping quality is unstable are solved.
Description
technical field [0001] The invention belongs to the technical field of production control of reconstituted tobacco leaves by papermaking method. Background technique [0002] Domestic paper-making reconstituted tobacco technology started relatively late, and it has only been nearly ten years to realize industrialization. Because it has broad application prospects for reducing consumption in the cigarette industry and improving cigarette quality, it has developed rapidly. At present, as the main control method for low-consistency pulping of reconstituted tobacco leaves by papermaking method, first set the power of the refiner, detect the real-time operating current of the refiner, and adjust the output of the two refiners through the output of the power PID control loop. gaps between sheets. However, due to the complex composition of the pulp entering the refiner, including leaf pulp, stem pulp, wood pulp and other added auxiliary materials, the composition of the inlet pulp...
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Inventor 王忠泽余红涛徐广晋关平刘建平
Owner CHINA TOBACCO YUNNAN REMFG TOBACCO CO LTD