On-line quality evaluation and real-time intelligent control method for tobacco process parameter

Abstract

The invention discloses a method for online quality evaluation and real-time intelligent control of a parameter during a process for processing tobacco. The method comprises the following steps: a parameter value between an operating parameter of raw material processing equipment and inner quality of a processed product is preset through a data management system; online acquisition is carried out in real time through a data management acquisition system; a parameter acquired by real-time online acquisition is compared with the preset parameter value through an intelligent control system of a data management layer; a valve, a draught fan and an air door power element on the equipment and parameter regulation of tobacco strip remoistening and rotating speed of a conditioning cylinder can be controlled through regulating the operating parameter of the PLC control system and a setting value of a PID open-close loop automation control parameter, thereby realizing accurate and dynamic control of raw material quality variation tendency during a tobacco online processing process and ensuring that the inner quality of the product can be controlled in an excellent and stable range in real time. The method is applicable to control of inner index in a tobacco primary processing line, a tobacco beating and redrying line, a CO2 swelling tobacco line and a rolling, connecting and packaging processing process.

Description

technical field [0001] The invention relates to a multi-device integration system for real-time evaluation and decision-making of a PLC control system operating state by a central data management system in a tobacco processing process. In particular, it relates to a new tobacco processing control device that can predict the finished product result in real time according to the processing process parameters, and can intelligently adjust the control system in real time. Background technique [0002] The current traditional cigarette product processing process control is that the equipment control layer takes the moisture and temperature of the tobacco after the processing as the control target, and feeds back the moisture and temperature parameters of the processed output to the PLC control system input through the detection results after processing. Signal, use the PID closed-loop control unit in the PLC programmable controller to adjust the executive devices configured by th...

AI Technical Summary

Problems solved by technology

The stability of the processing process requires a delay process of adjustment and lag, which makes the internal quality of the product fluctuate greatly.

[0004] 2. The traditional control objectives in the product processing process are moisture, temperature, etc., but this is far from enough for the internal quality and stability index requirements of the product

These acceptance "standard" parameters are only intermediate monitoring variables for equipment to detect product quality, not the real quality indicators of the product, let alone guarantee the stability of the internal quality of the product

Because: first, the operation of equipment meeting this control target is formed by the combined effects of various control parameters; Yes, the processed products may already be waste products, but the test results of traditional methods can still meet these indicators

[0005] 3. Due to the limitations of detection methods, the internal quality parameters of the product, such as color, taste, aftertaste, miscellaneous smell, coordination, aroma quantity, aroma quality, fullness, cannot be sampled, detected and controlled in real time

These indicators cannot be strictly, accurately and stably controlled during the processing process, and it is difficult to achieve the goal of Chinese-style cigarettes