Product Overview | HiRAM ®
TYPES OF APPLICATIONS
The North American 4575 HiRAM® Burner’s true high velocity results from exceptionally high capacity rates relative to the reduced tile discharge areas. Velocities ranging from 500 to 750 feet per second (100 to 230 M/S) drive heat into a furnace load, creating tremendous momentum while entraining and recirculating 7-10 cubic feet of furnace gases for every cubic foot of burner product that exits the tile. The benefit of high velocity entrainment is excellent temperature, uniformity, and thermal efficiency. HiRAM® Burners are particularly applicable to aluminum melters, ladle heaters, soaking pits, rotary kilns, heat treat furnaces, fluidized bed and dryers: Any installation where high velocity entrainment, penetration, and recirculation can benefit temperature uniformity and thermal efficiency. HiRAM®s are an extension upward of the North American Tempest® High Velocity Burner line. For capacities less than 4,000,000 Btu/h HHV (1000 kW LHV), consider 4441 or 4445 Tempest Burners. For capacities higher than a HiRAM® consider a 4821 with an “R” tile.
• Aluminum melters • Ladle heaters • Soaking pits • Rotary kilns • Heat treat furnaces • Fluidized bed • Dryers • Variety of other applications PERFORMANCE BENEFITS
• High velocity • Low NOx emissions • High excess air • Direct spark or pilot ignition • Wide operating limits • Cross-connected regulator ratio control • Available dual-fuel operation • Metal alloy tile options • Medium velocity tile options • Metal jacketed tile options SPECIAL ENGINEERED OPTIONS • LNI™ injector mounting plate • Backplate with classic 4575 swing bolts • High back-pressure designs up 15 psi (1 bar) • Double ignition/FS connections
Bulletin 4575 Page 2
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