ONE: Overview
A bag filter (LMC) is a dry dust filter. It is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, and the dust-containing gas is filtered by the filtering effect of the fiber fabric. The action settles down and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is blocked and the gas is purified.

TWO:Working principle

The dust-laden gas enters the ash hopper from the air inlet, enters the filter bag chamber through the open flange port, and is filtered and purified through the filter bag and then enters the clean air chamber and is discharged by the fan. The dust accumulates on the outer surface of the filter bag and keeps increasing, which increases the resistance of the bag filter. In order to make the filter work normally and continuously, when the resistance of the equipment is greater than 1200pa, the dust on the filter bag should be removed immediately.

When the ash cleaning system is running, the automatic control program controller will start the pulse valve in time and sequence, so that the compressed air (0.5~0.7Mpa) in the air bag will be ejected from the blowing pipe orifice and enter the filter bag, so that the filter bag will expand rapidly in an instant, and accompanied by The opposite direction of the airflow shakes off the dust, and the dust attached to the surface of the filter bag quickly leaves the filter bag and falls into the ash hopper (or ash bin), and the dust is discharged by the ash discharge valve to achieve the purpose of cleaning.

THREE:Features
       1. The bag filter has a high gas efficiency for purifying dust particles containing micron or submicron order, generally up to 99%;
       2. The dust-containing gas concentration has little effect on the dust removal efficiency and resistance of the bag filter within a considerable range;

       3. The bag-type dust removal operation is stable and reliable, there is no sludge treatment and corrosion problems, and the operation and maintenance are simple.

FOUR:Equipment selection

Model parameters	LMC-48	LMC-96	LMC-192	LMC-320	LMC-448	LMC-512
Handling air volume（m3/h）	1500-3200	3200-6200	6200-11000	11000-22000	22000-31000	3100-42000
Filter area（m2）	36	62	124	248	372	434
Filter wind speed（m/min）	1.0—1.8
Number of filter bags (strips)	48	96	192	320	448	512
Inlet gas temperature (℃)	≤120
Equipment resistance（Pa）	≤1200
Inlet dust concentration（g/m3）	<200
Outlet dust concentration（mg/m3）	≤50
Air source pressure for cleaning（MPa）	0.4～0.6