2# Coking Factory of Shanxi Coking Coal Group

Cooling circulating water system of coke device

The objects of technology improvement are the cooling circulating water systems of the 900,000t/a coke production device of the primary recycling system and 1,500,000t/a coke production device of the secondary recycling system. The cooling water is mainly used for cooling the initial cooler, final cooler, freezer, crude benzene and ammonia evaporation tower and other heat exchange equipment. The primary recycling system is equipped with four 280kW pumps, two in service and two for standby. The secondary recycling system is equipped with three 315kW pumps, two in service and one for standby. After system optimization and adjustment, four high-efficiency pumps are used, and the operating mode is unchanged. According to the acceptance results, 2,020,000KWH power can be saved annually.