Ultrafine powder pipeline conveying anti-blocking monitoring method and system based on dilute-phase pneumatic conveying device

Abstract

The invention provides a superfine powder pipeline conveying anti-blocking monitoring method and system based on a dilute-phase pneumatic conveying device. The method comprises the following steps: acquiring downstream gas transmission pressure of a gas transmission pipeline; carrying out gas transmission pressure loss adjustment treatment on the downstream gas transmission pressure and preset gas transmission pressure to obtain a pressure loss adjustment value; and according to the pressure loss adjustment value, an unblocking loss signal is sent to a dry ice unblocking controller, so that the working mode of the dry ice rotary valve is adjusted. According to the method, after the downstream gas conveying pressure is collected, the current pipeline gas conveying pressure of the gas conveying pipeline is determined, then the downstream gas conveying pressure is compared with the standard gas conveying pressure, the difference of pressure loss in the current pipeline of the gas conveying pipeline is conveniently determined, and finally the dry ice rotary valve connected to the gas conveying pipeline is adjusted according to the difference value. And dry ice cleaning can be carried out in time when the pipeline is blocked, so that the pipeline cleaning efficiency is improved.

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