Water is one of the most important elements in sand mines, maintaining this life-giving element in the washing system has a significant effect on reducing excess costs. Sahand Pouaya Industrial Group designs, manufactures and provides devices in line with these goals. It has been designed and installed in order to prevent the wastage of water and to purify the waste water in mines. The design system of these devices is such that the waste water of minerals is filtered by sedimentation in this device and returns to the cycle again. In these types of devices, additive polymer materials (bucoculant) are injected into the device for water purification, the cost of its daily consumption is insignificant compared to the efficiency and effectiveness of the device.