Standardization and improvement of coke dry quenching unit discharge devices

Nine different types of unit discharge devices are used on Soviet coking plants. Five goals considered in the design of more uniform unit discharge devices are: (1) ensuring a reliable seal of the discharge system; (2) improving the reliability and serviceability of the kinematic chains for control of the gates and all elements operating under conditions of high temperatures, corrosion, and abrasive wear; (3) preventing spontaneous opening of gates even with faulty disconnected drives; (4) providing reliable monitoring of the temperature of the discharged coke and permitting emergency final quenching in the discharge device, uniformity of the placement of the coke on the conveyor belt, and the necessary reserve capacity of the discharge system; (5) decreasing the consumption of metals and energy and improving the reliability of the drives. Two main types of discharge devices have been developed: one is acceptable to all coke dry quenching units (CDQU) in which the coke is discharged directly onto conveyor belts and the other is intended for CDQU with intermediate inclined wharfs between the discharge device and the conveyor belt. Both devices are described in some detail.