Zero-discharge sewage treatment device for concrete mixing plant

The utility model relates to the field of building sewage treatment. The utility model particularly discloses a zero-discharge sewage treatment device for a concrete mixing plant. The system comprisesa vehicle washing tank, a stirring main machine and a primary sedimentation tank, the primary sedimentation tank is communicated with a sand-stone separation tank, the vehicle washing tank and the stirring main machine are both communicated with the sand-stone separation tank, a sand-stone separation mechanism is arranged in the sand-stone separation tank, a sand outlet and a stone outlet are formed in the sand-stone separation tank, and the primary sedimentation tank is communicated with a clarification water tank. According to the technical scheme, the problem of inconvenience in operationdue to the fact that sand and stones are doped with each other after sewage treatment in an existing concrete mixing plant and later separation is needed is solved. 本实用新型涉及建筑污水处理领域，具体公开了混凝土搅拌站污水零排放处理装置，包括洗车槽、搅拌主机和初沉池，初沉池连通有砂石分