Dust removal system and controller thereof

Abstract

The invention discloses a dust removal system and a controller of the dust removal system. The dust removal system and the controller of the dust removal system detect the temperature and pressure of dust gas in a production process room at an inlet of a bag-type dust remover, and the pressure of the gas at an outlet of the bag-type dust remover, and the pressure or the temperature of the dust gas at the inlet or a work mode of a control system in the process of production is set as a set value to control a frequency converter to achieve control of the rotation speed of a draught fan. The controller can be connected with an online or off-line air purification detector to achieve closed-loop control of the air speed. The controller controls opening and closing of an impulse dust removal valve through differential pressure at the inlet and the outlet of the dust removal gas and the time of variation of the differential pressure, and achieves high-intelligent control modes of the bag-type dust removal, such as on line, off line, chamber division and cascade connection. The dust removal system and the controller of the dust removal system have the advantages of integration of dust removal series, modularization of the internal structure, diversification of functions, intelligentization of the control modes and optimization of cost performance, thereby being suitable for various occasions.

Description

technical field [0001] The invention relates to the technical field of dust removal, in particular to a dust removal system and a controller thereof. Background technique [0002] Dusty industrial waste gas may be generated from mechanical processes such as crushing, screening, conveying, and blasting of solid substances, or from processes such as combustion, high-temperature melting, and chemical reactions. Dust collectors are widely used to control the dust and fumes that have been generated. According to the collection mechanism, dust collectors can be divided into mechanical dust collectors, electric dust collectors, filter dust collectors and washing dust collectors. The mechanical dust collector relies on mechanical force to remove dust particles from the airflow. It has a simple structure, low equipment and operating costs, but the dust removal efficiency is not high. Electrostatic precipitators use electrostatic force to separate dust particles from airflow. They a...

AI Technical Summary

Problems solved by technology

Although some distributed control systems are constructed by adding distributed instruments such as PLC and upper computer and pressure sensors, and optimal control is adopted in the algorithm, the system is huge and requires the cooperation of various technical personnel, the cost of software and hardware is high, and it is not easy to popularize.

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