Pulse dust collector for boilers

Pulse dust collector for boiler is a new type of pulse dust collector which is improved on the basis of MC-I. It has the advantages of purification, large processing capacity, stable performance, long filter bag life, convenient operation and small maintenance workload. It has the advantages of large purification and disposal capacity, stable performance, long bag life, convenient operation and small maintenance workload.

Pulse dust catcher for boiler is a new type of pulse dust catcher which is improved on the basis of bag type dust catcher. It combines the advantages of various kinds of pulse blowing dust catcher, overcomes the shortcomings of insufficient strength of chamber cleaning and uneven distribution of inlet and outlet winds, and enlarges the scope of application.

Pulse dust collector is when the dusty gas enters into the dust collector from the air inlet, and touches the inclined plate and baffle plate in the middle of the air inlet and outlet first, then the gas flow will turn to flow into the grey hopper, and at the same time, the gas flow slows down, and due to the inertial effect, the coarse particles of dust in the gas flow into the grey hopper directly. Pre-collection of dust, into the dust hopper of the gas flow followed by folding and up through the interior equipped with a metal skeleton of the filter bag dust is arrested in the outer surface of the filter bag, after purification of the gas into the filter bag room clean room, convergence to the outlet discharge, dusty gas purification process through the filter bag, with the increase in time and the accumulation of dust attached to the filter bag more and more to increase the resistance of the filter bag, resulting in the processing of air volume gradually reduced for the normal operation, to control the resistance of the air volume of the filter bag to the filter bag. Normal work, to control the resistance within the range (140 - 170 mm water column), once more than the scope of the filter bag for cleaning, cleaning by the pulse controller sequence trigger the opening of the pulse valve control valve, the compressed air from the airbag blowing tube holes through the venturi jet to the corresponding filter bag, the filter bag instantaneous expansion, so that the accumulation of dust on the surface of the filter bag off, the filter bag to restore the initial state. The dust falls into the ash hopper and is discharged from the machine through the ash discharge system. Thus, the dust accumulated on the filter bag is periodically pulse blown to clear the dust, so that the purified gas passes through normally, and the dust removal system operates.

Pulse dust collector for boiler means to remove the dust attached on the filter medium (bag or filter cartridge) by spraying compressed air; according to the size of the dust collector, there may be several sets of pulse valves, controlled by pulse controller or PLC, each time a set of pulse valves is opened to remove the dust of the part of the bag or cartridge which is controlled by it, and the other bag or cartridge works normally, and after a period of time, the next set of pulse valves is opened to clean up the dust. The next part of the dust collector consists of dust hopper, upper box, middle box, lower box and other parts, the upper, middle and lower boxes are divided into chambers. When working, the dusty gas enters into the dust hopper from the inlet duct, the coarse dust particles fall into the bottom of the dust hopper directly, the fine dust particles enter into the middle and lower box with the airflow turning upwards, the dust accumulates on the outer surface of the filter bag, the filtered gas enters into the upper box to the clean gas collection pipe - exhaust duct, and then discharged to the atmosphere by the exhaust fan. Cleaning process is to cut off the clean gas outlet duct of the room first, so that the bag in the room is in the state of no airflow through the state (room air cleaning). Then open the pulse valve with compressed air pulse blowing cleaning, cut off the valve closure time is enough in the blowing from the filter bag on the stripping of dust settling to the dust hopper, to avoid the dust in the surface of the filter bag from the filter bag and then with the airflow attached to the neighbouring filter bag surface of the phenomenon of the dust bag cleaning, and by the programmable programmable control instrument on the exhaust valve, the pulse valve and the ash removal valve, etc., for fully automatic control. The dusty gas enters from the air inlet, and when it passes through the grey hopper, some of the large particles of dust in the gas are separated by inertial force and gravity, and fall into the bottom of the grey hopper directly. The dusty gas passes through the dust hopper and enters the filter bag filtration area in the middle box, the gas passes through the filter bag, the dust is blocked on the outer surface of the filter bag, and the purified gas enters into the upper box through the filter bag mouth, and then discharged from the air outlet.