The Yizhou Technology Coking Water Treatment Project is located in Pizhou City, Xuzhou City. The project is mainly responsible for adding chemicals to the secondary sedimentation effluent to meet water quality standards and providing technical guidance for the biochemical stage. The average hourly processing capacity of the system can reach 90-110m3/h, and the qualified indicators of the clean water tank are as follows: COD≤80mg/l、 The conductivity is ≤ 1.15 times, chloride ions are ≤ 1.1 times, and cyanide is ≤ 0.120mg/l. The project is mainly equipped with an automatic activated carbon dosing device, which can achieve multiple advantages such as no dust during unloading, good storage environment, and easy adjustment of chemical addition.