PROCESS AND APPARATUS FOR QUENCHING COKE Russian patent published in 2018 - IPC C10B39/04 C10B39/10 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy. In particular, the invention relates to a method for quenching coke, performed by distillation of coal (coking), and to an installation for carrying out this process. Method of quenching coke obtained by distillation of coal and having a temperature higher than or equal to 900°C, includes the steps of: a) lowering the temperature of said coke to about 700–300°C by heat exchange with a fluid through walls of a thermally conductive material interposed between coke and fluid, the fluid being selected from water and a diathermic oil; b) feeding a continuous flow of said coke at about 700–300°C into a turbo-cooler (T), comprising cylindrical tubular body (18), closed at opposite ends by respective end plates (19, 20), provided with cooling jacket (21) for the inner wall thereof, at least one inlet opening (9) for the coke, at least one inlet opening (10, 15, 16) for water, at least one discharge opening (11, 12) and a rotating part, rotatably supported in cylindrical tubular body (18) and comprising shaft (13) provided with elements (14) projecting radially from said shaft, adapted for the handling and advancement of the coke; c) feeding a continuous flow of water at a temperature less than or equal to 100°C into the turbo-cooler (T), through said at least one inlet opening (10, 15, 16) and subjecting said flow of coke and water to the action of the rotating part, which advances the coke towards said at least one discharge opening (11); d) continuously discharging from said at least one discharge opening (11, 12) a flow of coke at a temperature lower than or equal to 200°C, and a flow of water vapour.

EFFECT: technical result of the invention consists in providing a method for quenching coke obtained during coking so as to ensure strict control of emissions of not only particles, but also, in particular, organic volatile substances in a stream of water vapour, in particular polycyclic aromatic hydrocarbons, and also in providing significant recovery of the heat energy generated in the quenching phase.

15 cl, 3 dwg