Positive and negative pressure collaborative pulse dust removing device with explosion suppression function

Abstract

The invention discloses a positive and negative pressure collaborative pulse dust removing device with an explosion suppression function.The positive and negative pressure collaborative pulse dust removing device comprises upper pulse valves, a compression air source, filtering cylinders and a dust collector box.The upper pulse valves and the filtering cylinders are arranged in the dust collector box, the upper pulse valves are arranged above top openings of the filtering cylinders and are connected with the compression air source arranged outside the dust collector box through an air pipe, and a dust discharging device is arranged at the bottom of the dust collector box.The positive and negative pressure collaborative pulse dust removing device further comprises lower pulse valves, a vacuum cavity, a vacuum generator and a pulse controller.The lower pulse valves are arranged below the bottom faces of the filtering cylinders and communicated with the vacuum cavity.Weak face plates serve as part of the bottom faces of the filtering cylinders and are located in the vacuum cavity.The vacuum cavity is sequentially connected with the vacuum generator and the compression air source outside the dust collector body through air pipes.The pulse controller is connected with the upper pulse valves and the lower pulse valves in sequence.The positive and negative pressure collaborative pulse dust removing device with the explosion suppression function can effectively suppress flying of dust to achieve active explosion suppression, relieve the explosive capacity and enhance the passive explosion suppression performance.

Description

technical field [0001] The invention relates to a dust removal device, in particular to a positive and negative pressure cooperative pulse dust removal device with an explosion suppression function, and belongs to the technical field of internal filter dust removal under explosive dust conditions. Background technique [0002] The dust removal process of the filter type dust removal system is the basic link of the dust removal work. The commonly used dust removal methods mainly include: air flow blowback, pulse injection and vibration dust removal. The airflow blowback method has simple structure, convenient operation, and uniform dust removal effect, but the backflush process will interrupt the dust filtration; the vibration dust cleaning method generally drives the eccentric wheel by the motor to shake the filter cartridge, and vibrates the collected dust. This method is the most effective for cleaning dust, and there is no dead angle in cleaning dust, but it needs to incr...

AI Technical Summary

Problems solved by technology

However, these explosion venting methods will inevitably discharge a large amount of flammable mixture into the outside world, causing external disasters

It can be seen that even if active explosion suppression measures are taken, the dust removal system for explosive dust cannot completely eliminate the explosion hazard.

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