DRY COKE QUENCHING METHOD Russian patent published in 2014 - IPC C10B39/02 

FIELD: metallurgy.

SUBSTANCE: coke is loaded to a quenching chamber (1), whereto a cooling agent heated up to a temperature of 750-800°C is supplied through a blowing device in an upward movement direction. After the quenching chamber (1) the cooling agent is supplied through a dust-collecting hopper (4) to a heat recovery steam generator (5), where it is quenched. Dust is finally separated in cyclones (6) and the cooling agent is returned with an induced-draft fan (7) in the form of a circulating gas to the lower part of the quenching chamber. An excess amount of the gas is supplied through a plug (8) after the induced-draft fan (7) to additional dust-cleaning equipment (13). Excess gas is collected in a header. In order to provide safety of the process, positive pressure is maintained in the header by means of a control. Then, the gas is transferred by means of a fan blower (14) for additional cleaning from dust. The cleaned gas is supplied to a blast-furnace gas line for further use at a metallurgical facility or a coke-chemical production facility.

EFFECT: invention allows reducing hazardous emissions to atmosphere and reducing coke burning loss due to the reduction of an excess gas volume.

2 dwg