Structural composition and working principle of pulse bag filter

The internal structure of the pulse bag filter mainly consists of the following parts:

(1) Box body: mainly including bag room, clean air room, rubber plate, filter bag, metal structure of filter bag, shutdown door, box design hull 5000Pa.

(2) DAT160 system: mainly includes the main air pipe, spray spider, pulse valve, and controller.

(3) Intake and ash discharge parts: unloader, unloading valve, spiral gasket.

 2. Basic principles of organizational work

The dust-laden gas enters the ash hopper from the air inlet or enters the filter bag room through the exposed Airy mouth. The dust-laden gas passes through the filter bag filter and enters the clean air chamber as clean air, and then passes through the exhaust port of the clean air chamber. , sucked out by the filling machine. Dust accumulates on the outer layer of the filter bag and increases rapidly, causing the air resistance of the bag filter to rise rapidly. In order to keep the air resistance of the equipment not exceeding 1200Pa and the bag filter to continue to work, it is necessary to regularly remove the dust on the filter bag. Dust cleaning is performed by the computer system device intermittently starting the pulse valve, so that the air bag is filled with air (0.5~0.7MPa), which is exuded from the nesting spider lining (called a wind) and mediated by the Venturi tube ten times. The surrounding air of a wind (called the secondary wind) enters the filter bag and shrinks rapidly in an instant, and with the opposite direction of the air flow, it is free to dust, so as to achieve the purpose of dust removal. The dust collection room is equipped with two rows of dust cleaning pulse valves, and then the pulse valves enter in order to pour high-speed rotating air into the filter bags on each side, causing the bags to become silver for a moment, so as to remove the dust on the surface of the filter bags. The pulse DAT160 length and cleaning cycle of each dust collection room are controlled by a special dust cleaning programmable computer system.

Feed according to different technical standards can be combined with dust collectors of various technical standards, each valve DAT160 has 10, 12, 16, 24, 32 bags. The diameter of the filter bag is 133mm, and the length of the filter bag is 2450mm and 3060mm. The pulse bag filter can be pressurized or uniaxially operated without any change in the internal structure of the basic body. <100mg/m3, if the pulse bag filter is used in hot areas or when the flue gas is below zero ℃, it is necessary to add an insulation cooler, and the hull should be changed accordingly. DMC pulse bag filter consists of vent, filter chamber (filter bag, filter bag structure), clean room (pulse DAT160 device), center console, filling machine, ash hopper (air flow distributor) and spiral gasket or fan blade It is composed of unloader, parking platform in Levini County, railings, electrical control, etc. The location of the exit (up, down) and exit (up) direction requires flexible choices in the site design of Lidou.