Pulse-jet cleaning maintains airflow through suitable bag or cartridge filters by removing accumulated dust from the filter surface while the equipment operates. Correct cleaning supports stable pressure loss, but it must be coordinated with media selection, compressed air and material discharge.
How pulse-jet cleaning works
Dust collected on the outside of the filter media forms a controlled dust cake. A short compressed-air pulse expands the bag or reverses the local flow through a cartridge, releasing part of the cake into the hopper. A sequencer or differential-pressure controller determines the cleaning cycle.
Filter media for the application
Polyester, polypropylene, acrylic, PTFE-based media and fibreglass are available for different temperature, chemical and particle conditions. Surface treatments or antistatic properties are specified only when justified by the contaminant and risk assessment.
Tower and compact filters
Tower units can combine filtration, a fan, controls and automatic cleaning for suitable suspended-dust or fume applications. Compact cartridge filters can serve local capture points. The correct equipment depends on airflow, dust load, particle size, moisture and required collection method.
Collected-material discharge
Dust released during cleaning falls into the hopper and is removed through a rotary valve, screw conveyor, container or another enclosed system. Reliable discharge prevents material from building up and interfering with filter operation.
Maintenance indicators
Differential pressure, compressed-air pressure and quality, valve condition, hopper level and visible emissions are routinely checked. Cleaning too often wastes air and can shorten media life; cleaning too little increases resistance.
ALWO configures pulse-jet filtration for the actual industrial process. Contact us with dust and operating data.
