The fine sand recovery and the whole set of equipment are mainly composed of motor, slurry pump, zkr dewatering screen of hydrocyclone, cleaning tank, return tank, etc.
The fine sand recovery and pump will deliver the sand water mixture to the hydrocyclone. The fine sand concentrated by centrifugal classification is provided with a vibrating screen through the sand settling nozzle. After dehydration by the vibrating screen, the fine sand and water are separated effectively. A small amount of fine sand is returned to the cleaning tank through the return tank, and the liquid level of the cleaning tank is too high, and then discharged through the discharge port. The weight concentration of recovered materials is 70% - 85%. The fineness modulus can be adjusted by changing the pump speed, changing the sand slurry, adjusting the overflow water volume and changing out the nozzle.
Analysis of economic benefits:
Assuming that the consumption output of sandstone factory is 90? / h, The output of the water pump is 80? / h, and the fine sand in the waste water discharged by the sand washing machine is about 3% (2.5? / h). After the fine sand recovery and installation, the fine powder content in the waste water discharged by the fine sand recovery machine installation is less than 1%, and the fine sand recovery rate is 60% (2.5? / h * 60% = 1.5? / h). The consumption line is calculated by 12 hours of work every day: 1.5? / h * 12 = 18? / day, 320 days a year; 18? / day * 320 days = 5760? / year, waste sand According to the calculation of 55 yuan /?: 5760? * 55 yuan /? = 320000 yuan. If the consumption of sand factory is large, the benefit will be higher. At the same time, the fine sand will be fully recovered, the workload of sedimentation tank will be reduced, and the clearing cost of sedimentation tank will be greatly reduced.