Loosening and moisture regaining incoming material moisture prediction method based on physical characteristics and physical motion characteristics

Abstract

The invention discloses a loosening and moisture regaining incoming material moisture prediction method based on physical characteristics and physical motion characteristics. The method comprises the steps of tobacco physical characteristic research, incoming material module distribution characteristic and physical characteristic research, data extraction and processing, incoming material moisture prediction model establishment, loose and moisture-regaining water-fetching prediction model establishment, model optimization and the like. According to the invention, on the basis of the existing equipment layout, the moisture prediction model is established, the moisture of the loosening and moisture-regaining incoming materials is predicted, the problem that traditional water adding amount calculation and control means are lagged is avoided, the system has the capacity of sensing and predicting in advance, and the water adding accuracy of the raw materials is effectively improved by predicting the moisture of the incoming materials and calculating the instantaneous water adding amount.

Description

technical field [0001] The invention relates to the tobacco industry, in particular to a method for predicting the moisture content of loose and regained incoming materials in the silk making process based on physical characteristics and physical movement characteristics, which is suitable for the tobacco manufacturing industry. Background technique [0002] The loosening and regaining moisture process is the first moisture control process in the cigarette shred making process, and its outlet moisture stability is directly related to the stability of the subsequent processing, and also affects the filling value of the finished shredded tobacco. The main reason affecting the moisture stability of the loose and regained outlet is the consistency of the moisture content of the incoming material. [0003] According to the investigation of the current production situation, there are the following problems: (1) External factors: only part of the company’s raw material storage is a...

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Problems solved by technology

[0003] According to the investigation of the current production situation, there are the following problems: (1) External factors: only part of the company’s raw material storage is a constant temperature and humidity warehouse, and most of the raw materials are stored in natural environment warehouses. The moisture content of raw materials fluctuates greatly. The moisture is between 8%-14%, and the difference between the lowest moisture and the highest moisture in the batch is about 6%

(2) Internal factors: At present, there is no moisture detection point in the workshop from the discharge of the elevated warehouse to the front-end process of the loosening and conditioning machine. As a result, the moisture information of the tobacco leaves cannot be obtained in the process of passing through a path of more than 300 meters and three production positions, and cannot be advanced Give the control signal to the next process, resulting in some difficulties in the control of the loose moisture regain process

[0005] (1) Affecting product quality: resulting in large fluctuations in the moisture content of incoming materials in loose and moisture-recovery positions, causing chain transmission that is difficult to control the quality of the entire line, and causing a series of problems such as large moisture deviations in finished tobacco shreds

[0006] (2) Affecting the process control: The operating principle of the automatic control of the loose moisture conditioner is to feed forward data through the moisture meter at the inlet of the loose moisture conditioner, and calculate the instantaneous water addition through PID calculation. When the moisture of the incoming material suddenly changes like a cliff or a peak The amount of water added also changes accordingly, but the rate of change of the amount of water added is slower than that of the water, which makes the water control unsatisfactory.

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