EQUIPMENT RETOOLING METHOD Russian patent published in 2010 - IPC F27B21/08 

FIELD: heating, drying.

SUBSTANCE: proposed invention relates to method intended for retooling equipment designed to process fined-grained materials thermally and using fire grate to accommodate processed materials, and can be used in iron and steel metallurgy. In compliance with proposed method, two fire grate opposite sidewalls (6) and two suction box opposite walls adjoining sidewalls upper parts are removed. Suction box upper parts (3b) inclined upward and outward are arranged on remaining lower parts (3a) of suction box walls. Gas impermeable support elements (8) running sideways and outside are arranged on suction box upper parts (3b) inclined upward and outward. Sidewalls (6) are arranged on side edges (9) of said gas-impermeable support elements (8). Sire grate (10) that covers all free top surface of suction box (2) is fitted in place. Note here that the height of suction box wall remote top part and support element width make 1/30-1/5 of fire grate width, while suction box upper parts (3b) inclined upward and outward make the angle of 30°-60° with vertical.

EFFECT: higher efficiency.

3 cl, 3 dwg