Working method and moisture control system of multi-mode slice baking device

Abstract

The invention provides a working method and a moisture control system of a multi-mode slice baking device. The moisture control system of the multi-mode slice baking device comprises a baking device outlet and a moisture instrument for measuring slices at the baking device outlet; the moisture instrument is connected with a moisture difference circuit, and the output end of the moisture difference circuit is at least connected with a control branch circuit A, a control branch circuit B and a control branch circuit C in parallel; the automatic control level of related technological parameters, such as moisture, of the slices at the baking device outlet can be improved through the control branch circuit A, the control branch circuit B and the control branch circuit C; produced products are stable and controllable in quality; and meanwhile multiple products can be easily produced on the same production line. According to the working method of the multi-mode slice baking device, the multi-mode slice baking device comprises the moisture control system; the progressive decrease mode, the progressive increase mode and the low-high-low mode can be achieved; different technological requirements are accordingly met; and the quality requirements of the different products are met.

Description

technical field [0001] The invention relates to an automatic control system of multiple heating devices in series, in particular to a working method of a multi-mode slice baking device and a moisture control system thereof. Background technique [0002] Qualified tobacco sheets are blended with natural tobacco leaves in a certain proportion to make cigarettes, which can not only reduce the cost of cigarettes, save raw materials, but also improve the filling and combustibility of cigarettes, reduce the amount of tar and nitrate content, so improve the quality of tobacco sheets become a research hotspot. The most important quality index of tobacco sheet is moisture. Due to the large heat capacity of the oven, the moisture control of the traditional single-loop PID adjustment lags behind. At the same time, the temperature change trend of the three ovens in series will affect the bulk, absorbency, and softness of the sheet. influences. [0003] The oven is the key equipment to...

AI Technical Summary

Problems solved by technology

However, due to the large heat capacity of the oven, the system hysteresis is relatively large, and the control function of the system is often not timely.

[0005] (2) The traditional PID control system is based on the precise control object model, but the oven model will change with the influence of load changes, internal and external disturbances, etc. At the same time, compared with other control methods, the PID control speed is slower;

[0006] (3) A single oven temperature control mode can only meet the requirements of a single process mode, resulting in poor adaptability and low flexibility of the control system, which is not conducive to the production and realization of multiple products on the same production line

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