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Automatic correction method for water adding quantity of humidifying equipment

A humidification equipment and water addition technology, which is used in the preparation of tobacco, electric controllers, controllers with specific characteristics, etc., can solve the problem that the moisture at the outlet of the first material deviates greatly, the moisture at the outlet of the humidification equipment fluctuates greatly, and affects the product. quality and other issues, to achieve good control effect, good industrial application value, promotion and application prospects, and the effect of ensuring export moisture indicators

Inactive Publication Date: 2017-01-04
CHINA TOBACCO HENAN IND
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Problems solved by technology

With the continuous improvement of the technical indicators of the tobacco industry, the humidification equipment in the head material stage, because the inlet moisture always has a process of rising from a small value to the actual value, in this process, the amount of water added by the program is far more than normal The amount of water added during production causes a large deviation of the outlet moisture at the head material stage; at the same time, when the moisture of the incoming material fluctuates greatly, the outlet moisture of the humidifying equipment will also appear overshoot during the production process, resulting in large fluctuations in the moisture at the outlet of the humidifying equipment. affect the quality of the product

Method used

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  • Automatic correction method for water adding quantity of humidifying equipment

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Embodiment Construction

[0028] Such as figure 1 and figure 2 As shown, a method for automatically correcting the amount of water added to a humidifying device according to the present invention includes the following steps in sequence:

[0029] (1) Use the electronic belt scale and the moisture meter to measure the inlet material flow measurement value a and the inlet material moisture measurement value b of the additional equipment respectively, and then enter step (2);

[0030] (2) Set the outlet material moisture setting value c of the humidifying device according to the process standard of the humidifying device, and then enter step (3);

[0031] (3) According to the inlet material flow measurement value a, the inlet material moisture measurement value b and the outlet material moisture setting value c, calculate the theoretical water addition y of the humidification device, and then enter step (4);

[0032] The calculation process of the theoretical water addition y of the humidification equi...

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Abstract

The invention discloses an automatic correction method for water adding quantity of humidifying equipment. The automatic correction method comprises: firstly, measuring an inlet material flow measured value and an inlet material moisture measured value of the humidifying equipment respectively, and setting an outlet material moisture setting value of the humidifying equipment; then calculating theoretical water adding quantity of the humidifying equipment, and measuring an outlet material moisture measured value of the humidifying equipment by utilizing a moisture meter; taking the outlet material moisture setting value and the outlet material moisture measured value as forward feed input variables and taking a measured value of the water adding quantity of the humidifying equipment and the outlet material moisture measured value as disturbance quantities; forming two grades of PID (Proportion Integration Differentiation) control systems through outlet moisture feedback adjusting PID and a water adding valve PID to realize a double-pole serial connection PID control system, thereby controlling actual water adding quantity of the humidifying equipment. The deviation generated by an outlet moisture index of the humidifying equipment, at an initial phase of the equipment and caused by changes of the external environment, can be eliminated; the control level of calculation amount of the humidifying equipment is effectively improved and the working efficiency of the equipment is improved.

Description

technical field [0001] The invention relates to the field of water addition control of humidification equipment in the tobacco industry, in particular to a method for automatically correcting the water addition amount of humidification equipment. Background technique [0002] According to the technical requirements of the tobacco thread making process, many processes need to humidify and add water to the tobacco raw materials, and the amount of water added has a direct impact on the quality of the product. With the continuous improvement of the technical indicators of the tobacco industry, the humidification equipment in the head material stage, because the inlet moisture always has a process of rising from a small value to the actual value, in this process, the amount of water added by the program is far more than normal The amount of water added during production causes a large deviation of the outlet moisture at the head material stage; at the same time, when the moisture...

Claims

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Application Information

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IPC IPC(8): A24B3/04G05B11/42
CPCA24B3/04G05B11/42
Inventor 赵春元丁松峰王建伟
Owner CHINA TOBACCO HENAN IND
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