Due to the development of the mining industry, people's demand for sand is increasing, and some manufacturers have thought of opening sand and gravel plants. Sand and gravel owners usually equip gravel plants with crushers, sand-making machines, sand washing machines, screening machines, etc. However, they overlooked an important link. There is no fine sand recovery machine in the sand washing process. On the surface, this saves investment costs. In fact, it not only caused environmental pollution but also caused a waste of resources. Today Siri will introduce you to the reasons.
First, Introduction of fine sand recovery machine:
1. The fine sand recovery machine is mainly composed of a motor, a vacuum high-pressure pump, a sediment separator, a TS dewatering screen, a cleaning tank, and a return box. It has the advantages of low failure rate, long service life, simple structure, and convenient transportation. The fine sand recycling machine can not only reduce the loss rate of fine sand but also reduce the stone powder content in the tailwater.
2. The working principle of the high-efficiency fine sand recovery machine:
The pump slurry sand-water mixture is transported to the sand high-pressure separator, the tailings concentrated by the centrifugal classification are supplied to the dewatering screen through the grit settling nozzle. After the dewatering screen is dehydrated, the tailings and water are effectively separated, and a small number of tailings and mud are returned to the return box. Back to the cleaning tank, when the cleaning tank liquid level is too high, it will be discharged through the discharge port. The weight concentration of materials recovered by the dewatering screen is 70%-85%. Adjusting the fineness modulus can be achieved by changing the pump speed, changing the mortar concentration, adjusting the overflow water volume, and replacing the mortar nozzle. So as to complete the three functions of cleaning, dehydration, and classification.
Second, the reason for the need to equip a High recycling rate fine sand collecting machine in the sand washing process
1. Direct discharge of wastewater will cause environmental pollution.
The wastewater discharged from the sand washing process will contain a large amount of fine sand and mud. If it is directly discharged into the river course, it will accumulate at the mouth of the river, and long-term accumulation will cause pollution. If the auxiliary equipment of the fine sand recovery equipment is added to further process the wastewater, not only can the production cost be reduced, but also the environmental protection standard can be reached.
2. Direct discharge of wastewater will cause the loss of fine sand, leading to a waste of resources.
We know that most sand and gravel production lines use wet sand making, and the final sand washing step is to remove the salt on the finished sand through a sand washing machine. Although the stones are cleaned up, the sewage after cleaning in this step will carry a large amount of soil and fine sand, and the amount of fine sand in this part is about 5%-25%. If you make full use of these fine sands, you will be lucrative.
3. The fine sand recovery machine for sale makes the fine particles fully recovered, reduces the workload of the sedimentation tank, and reduces the cleaning cost of the sedimentation tank.
If these fine sands are fully used under the action of the fine sand recycling machine, it will not only be profitable but also avoid waste of resources. It is a rare piece of equipment. The Nile is a professional manufacturer. The fine sand recycling machine produced is of good quality and good price. Welcome to contact us and visit our factory.
