Pulse jet single machine bag dust removal

Pulse jet single machine bag dust removal

DMC type pulse jet single-machine bag filter is a small bag filter designed by our company according to the technology of similar foreign products. The dust collector adopts the technology of high pressure (0.5~0.7MPa) large flow electromagnetic pulse valve to spray the dust cleaning technology one by one filter bag. Compared with other domestic single machines, it has the characteristics of large dust removal kinetic energy and high dust removal efficiency. And small size, light weight, simple and compact structure, easy installation, convenient maintenance (external filter type), so this dust collector is widely used in building materials, cement, metallurgy, mining, chemical, coal, non-metallic mineral ultrafine powder processing and other industries The dust-laden gas purification and treatment system is an ideal equipment for environmental protection and dust removal.
This series of single-click dust collectors has six specifications temporarily, and each specification can be divided into two types: standard type A with ash hopper and type B with open flange (without ash hopper). Its structure is mainly composed of filter room, filter bag, clean air room, ash hopper, ash discharge valve, pulse injection device, electric control box, etc. The box body is all welded structure, and the inspection door is sealed with foam rubber strip to ensure the dust collector Strict and airtight.
Selection of dust collector: The single machine has six specifications of 32, 48, 64, 80, 96 and 112 and is divided into two installation forms to meet the use requirements of different occasions. The specific model descriptions are as follows:
DMC-32 (A, B)
D——Single-machine dust collector
MC - pulse jet
-32——The number of filter bags is 32
(A, B)——A: with ash hopper and ash discharge valve B: flange type
Working principle of DMC type pulse jet single-machine bag filter:
The dust-laden gas enters the ash hopper from the air inlet, and enters the filter bag room through the open flange port. The dust-laden gas is filtered through the filter bag as clean air and enters the clean air chamber, and then passes through the exhaust port of the clean air chamber and is discharged by the fan. . The dust accumulates on the outer surface of the filter bag and keeps increasing, so that the resistance of the bag filter keeps rising. In order to make the resistance of the equipment not exceed 1200Pa, the bag filter can work intermittently, and the dust on the filter bag needs to be removed regularly.
Dust cleaning is to start the pulse valve in time sequence by the program controller, so that the compressed air (0.5~0.7MPa) in the bag is ejected from the holes of the blowing pipe (called primary air) and induces the surrounding air several times of the primary air through the venturi (called primary air). secondary air), entering the filter bag, causing the filter bag to expand rapidly in an instant, and shaking off the dust with the opposite direction of the airflow, the dust attached to the bag surface quickly leaves the filter bag and falls into the ash hopper (or ash bin), and the dust is removed by The ash discharge valve is discharged to achieve the purpose of ash cleaning.
Main technical parameters of DMC type pulse jet single-machine bag filter: