A multi-valve coordinated airflow dust-cleaning bag-type dust collector

Abstract

The invention provides a multi-valve co-moving airflow ash removal bag type dust remover. The multi-valve co-moving airflow ash removal bag type dust remover comprises a box body and a multi-valve co-moving airflow ash removal mechanism; an ash removal air bellow cover plate is arranged above a tube nest, and an ash removal air bellow is composed of the ash removal air bellow cover plate, side walls of the dust remover and the tube nest; the ash removal air bellow cover plate is provided with multiple valve holes cooperating with valves, and the valve holes serve as the filter valve hole and the ash removal valve hole respectively; the filter valve hole is communicated with the ash removal air bellow and a gas purifying chamber, and the ash removal valve hole is connected with the ash removal air bellow and a pressurizing air pipe; the different valves cooperating with the filter valve hole and the ash removal valve hole execute action, when the filter valve hole is closed and the ashremoval valve hole is opened, blowback ash removal is carried out, and when the filter valve hole is opened and the ash removal valve hole is closed, filtering is carried out; the blowback airflow with the stable pressure is provided, so that a filter bag is not damaged during ash removal, the service life of the filter bag is prolonged, and the ash removal effect is greatly improved; a powder cake layer of the filter bag is not destroyed during ash removal, and continuous and stable ultra-clean discharge is achieved; hardening of the filter bag is effectively prevented, and a pulse-jet deviceis also omitted.

Description

technical field [0001] The invention belongs to the field of dust removal of dust-containing gas, and specifically refers to a multi-valve coordinated airflow dust removal bag type dust collector. Background technique [0002] At present, bag filter is widely used to purify dusty gas produced in industries such as power generation, cement, chemical industry, metallurgy, mining, and grain processing. The working principle of the bag filter is to introduce the dust-laden gas into the filter bag and make it pass through the filter bag in the filter bag. The dust particles are intercepted and stay on the surface of the filter bag to form a dust layer. The clean air flows out of the dust collector through the filter bag smoothly. After running for a period of time, the dust layer accumulated on the dust-facing surface of the bag filter bag becomes thicker and thicker, which increases the resistance loss of the dust collector. Therefore, after the bag filter has been running for...

AI Technical Summary

Problems solved by technology

At present, the blowback mechanism is basically inside the dust collector. Due to the limitation of many factors in the temperature environment, air leakage from the blowback valve is prone to occur, and the machine is prone to failure; Due to the constraints and mechanical structure limitations, there is often a positional deviation between each positioning blowback point and the theoretical inlet position of each compartment, resulting in a large loss of blowback volume

And difficult maintenance, high labor intensity and other issues

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