OVERGRATE BLAST DEVICE OF FIRE-BAR COOLER Russian patent published in 2000 - IPC

FIELD: production of loose materials such as cement, lime, etc. SUBSTANCE: overgrate blast device whose fire grate bars are secured so that preceding bar is overlapping next one with slit formed between them and their tilting angle provides for easy transfer of raw material has its damping device incorporating as many flaps as there are slips; each flap has offset center of gravity relative to axis of revolution through working portion and is hinged through pin in upper end plane of next fire bar so that its front protrudes above working surface of fire grate thereby ensuring self- regulation of cooler operating conditions depending on amount and thickness of cooling mass on grate. EFFECT: improved cooling conditions without increasing cooling air flowrate. 2 cl, 2 dwg