| 摘要 |
FIELD: metallurgy, possibly processes for making metallurgical semicoke. ^ SUBSTANCE: method comprises steps of heat treatment of coal layer in vertical shaft type apparatus while igniting at side opposite to that of air supply; using as raw material coal fractions 20 - 70 mm; supplying air through coal layer at specific flow rate 70 - 99.5 m3/m 2h depending upon coal kind. ^ EFFECT: possibility for obtaining solid product of higher strength, with lowered ash content and larger mean size of lumps at increased yield. ^ 1 cl, 3 ex, 1 tbl |
