Cement & Building Materials
High-temperature online cleaning and bulk flow restoration for preheaters, risers, cyclones, coolers, and silos.
Blockages and buildup in preheaters, risers, cyclones, coolers, and raw meal systems are among the costliest problems in cement production — driving kiln stops, manual cleaning, and lost output.
Flow Industries impulse systems remove rings, snowmen, coating, and hardened deposits online, using high-pressure air impulses or unique air-water impulse technology — eliminating manual cleaning and reducing unplanned stoppages.
Typical Applications
- Cyclone preheater and riser duct cleaning
- Rings, snowmen, and coating removal
- Clinker cooler applications
- Raw meal silo flow restoration
- Gypsum and limestone silos
- Tertiary ducts and kiln sliding shelves
- Kilns and process vessels
- Synthetic gypsum bins and feed bins
How We Solve It
For standard buildup, AirMace™ and Hybrid AirMace™ air cannons keep material moving. For severe, heat-hardened, or sintered deposits, MultiPulse™ and Hybrid MultiPulse™ deliver repeated high-pressure impulses — with adjustable pressure, pulse count, and cycle length, controlled locally or from the plant control room.
- Permanent installation, preventive operation
- Repeated blasts in cyclic operation — every few seconds
- No damage to refractory or structures
- Remote, hands-free operation — operator not exposed
- Small number of devices per vessel, low annual maintenance
Field Results
100% Synthetic Gypsum Substitution
Synthetic gypsum costs a fraction of blended natural gypsum but causes severe bin blockages. At a US cement plant, adding MultiPulse™ devices enabled full synthetic gypsum substitution — where numerous air cannons had failed — and avoided a bin redesign estimated at over $500k.
Cooler Snowman Elimination
Snowman buildup in clinker coolers forces stoppages and hazardous manual cleaning. Hybrid MultiPulse™ installations at US cement plants removed cooler snowmen permanently — "there is no snowman anymore."
2 Devices vs. 14 Air Cannons
On a kiln sliding shelf, two Hybrid MultiPulse™ devices delivered superior cleaning compared to 14 conventional air cannons — eliminating blockage stoppages and manual water-lance cleaning.