Sewage treatment system in dry ice cleaning process

The invention discloses a sewage treatment system in a dry ice cleaning process. According to the invention, a Siemens PLC is used as a control center to design the coarse screen tank automatic control system for sewage treatment in the dry ice cleaning process, and the system can adjust each controlled object at any time according to the real-time condition of the sewage treatment tank, so that the sewage treatment efficiency is improved, and the sewage treatment cost is reduced. In the dry ice cleaning process, wastewater is treated according to quality, pretreatment measures are enhanced according to the characteristics of each kind of industrial wastewater, and guarantee is provided for pretreatment of a follow-up system, so that the high efficiency and rapidness of the whole water treatment system are improved, meanwhile, the follow-up labor burden of operators is relieved, and the production cost is reduced. And therefore, the environment-friendly cleanliness of the whole cleaning system is greatly impr