Pretreatment device for treating coking concentrated salt wastewater

• Main Authors: DONG LIANGHUA, LIU WENLIANG, HAN YE, ZHANG XINGJU, WANG LEIMING, DUAN ZHIGANG, ZHANG MINQIANG
• Format: Patent
• Language: Chinese; English
• Published: 13.09.2022
• Subjects: MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TRANSPORTING

The utility model discloses a pretreatment device for treating coking concentrated salt wastewater. The pretreatment device comprises an additive solution preparation tank, an additive solution storage tank and a premixing tank which are arranged in sequence, the additive liquid preparation tank is connected with the additive liquid storage tank, and a stirring shaft is further arranged in the additive liquid preparation tank; a premixing cylinder is arranged in the premixing tank and comprises an inner cylinder and an outer cylinder which are coaxially arranged, gaps are formed between the lower side opening of the inner cylinder, the upper side opening of the outer cylinder, the lower side opening of the inner cylinder and the bottom surface of the inner side of the outer cylinder, and an additive liquid inlet pipe and a plurality of sewage inlet pipes are connected to the part, close to the top surface, of the inner cylinder; the upstream end of the additive liquid inlet pipe is connected with an inner cav