The invention relates to the technical field of breeding
tail water treatment, in particular to
fishery breeding
tail water purification equipment which comprises a three-
pool two-dam
system, sand blocking curtains are each composed of a floating body cylinder, a curtain and a balancing weight, fixing plates are fixedly connected to the two sides of each curtain, and first floating blocks are slidably matched with one sides of the fixing plates; second floating blocks are fixedly connected to the first floating blocks through pull ropes, pushing cavities are fixedly connected to the sides, away from the water inlet, of the fixing plates,
buoyancy cylinders are arranged in the pushing cavities in a sliding fit mode, pushing grooves are formed in the upper portions of the fixing plates, pushing blocks are arranged in the pushing grooves in a sliding fit mode, and springs are fixedly connected to the sides, close to the pushing cavities, of the pushing blocks; a supporting
assembly is arranged in the pushing cavity, and a cleaning
assembly is arranged on the curtain. The first floating block is automatically driven to drive the cleaning
assembly to move up and down through
water level changes, attachments on the curtain are removed in time, the manual cleaning difficulty is prevented from being increased, meanwhile, the supporting assembly is triggered by
water level lifting to lock and release the first floating block, and the cleaning strength is enhanced.