Method for automatic control of temperature of panel drier

Abstract

The embodiment of the invention provides a method for automatic control of the temperature of a panel drier. The method comprises the steps that temperature control operation is started; a panel detection limiter monitors whether a panel enters the drier, and a main drive gear detection limiter calculates the position of the panel; when the head of the panel enters an area of the drier, a temperature adjustment program is started, the amplitude and interval of adjustment of a heat source valve are initially set according to the operation speed of the drier, actual temperature is compared with a set temperature, a valve on-off adjustment parameter is output, and the set temperature is tracked; when the middle of the panel enters an area of the drier, a temperature fine-adjustment program is started, and the amplitude and interval of adjustment of the heat source valve are output according to actual temperature fluctuation; when the tail of the panel enters an area of the drier, the temperature adjustment program is started, the amplitude and interval of adjustment of the heat source valve are set, and the set temperature is tracked. By adopting the control logic of the method for temperature control of the panel drier and simulating artificial temperature control, production quality is improved, and labor intensity is relieved.

Description

technical field [0001] The invention relates to the technical field related to plate dryers, in particular to an automatic temperature control method for plate dryers. Background technique [0002] In the modern panel product production workshop, after the panel products are formed, they are often heated and dried in a dryer to lose free moisture and meet the requirements of the finished panel. This process requires the actual temperature of each area of ​​the dryer to match the movement speed of the plate in the dryer in order to achieve the ideal drying effect. During the working process of the dryer, the movement speed of the dryer can be precisely controlled, but due to various factors such as the hysteresis of the heat exchange medium itself and the discontinuous distribution of the plate inside the dryer, it is difficult to achieve the temperature of each area of ​​the dryer. Smooth and precise control, resulting in overheated or wet board products. It directly affec...

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