Pulse Jet Bag Filter

Product Details:

The Pulse Jet Bag Fitter consists of filter cylinders(bags) enclosed in a metal housing. In operation, dust-laden air enters through the centre of bag filter. Either pressure or suction delivers the dirty air to the hopper. The fine practices travel upward and collect on the filter bags. The clean air passes through the bag and is vented to the atmosphere. A high pressure jet of compressed air directed through the bag at timed intervals removes the dust, which is deposited in the hopper and is easily collected for disposal or recovered for use.

Anatomy of the pulse jet bag filter: The dust-tight pulse jet bag filter has three section: a plenum at the top, a collector housing in the centre and a hopper at the bottom. A plenum houses the blow tubes and supports for the solenoid valves. Clean air or gas is discharged through the exhaust outlet in the plenum. The housing contains the filter bag assemblies. Below the housing is the hopper which contains the inlet. A diffuser in the hopper, adjacent to the inlet absorbs the impact of the high velocity dust particles and properly distributes the incoming air. Pressure drop, which measures collector performance, is indicated by a D. P. Gauge connected at one end to the filter bag section and to the clean air plenum at the other end. A Gujtex rotary airlock is recommended as a discharge valve to handle the collected dust.

Filter cylinder assembly: The filter cylinders(bags) slip over wire retainers, A bag clamp secures the bag-retainer assembly to the collar of the venture nozzles which are attached to a tube sheet. blowpipes with orifice nozzles are located above each row of filter bags so that the orifice nozzles are directly above the throat of each venture.

The cleaning cycle: A signal from a remote sequence timer actuates the opening of the normally closed solenoid or pilot valve. The opening of the solenoid valve decreases the pressure in the tube connecting the solenoid to the right angle diaphragm valve causing the diaphragm valve to open. This permits a momentary jet of 100 PSIG air to flow from the air supply pipe to blow tube, down each venture and to each filter bag. All bags in a row are cleaned simultaneously.