In order to obtain ultra-white high purity quartz sand, such as silica sand for artificial quartz slabs, acid pickling of silica sand is an effective method. According to the fact that silica sand is insoluble in acid, the impurities in silica sand are leached and dissolved by acid pickling process, and then ultra-white and high-purity silica sand is obtained. In order to achieve the best pickling effect, Sinonine develops an efficient enclosed pickling equipment, which can complete the pickling operation in a very short time and ensure the beat pickling effect.
Features
1. Advanced pickling technology and short reaction time;
2. Closed pickling equipment, pollution-free production process;
3.The ultra-white and ultra-pure silica sand products can be obtained;
4. The production line has low energy consumption and no power consumption.
5. The production line operates at room temperature with strong adaptability
The technical process
The prepared silica sand enters the pickling equipment through feeding devices. In the pickling equipment, the silica sand and acid solution are fully mixed. The reaction time is set according to the properties of silica sand, and the impurities are discharged together with the pickling liquid. After reagent removal and dewatering, the final high purity silica sand will be obtained
Case 1:
Nigeria 20tph Slab Sand Production Line
The production line adopts acid pickling method to produce quartz sand for making slabs, and produces 20ton of high purity quartz sand per hour. After crushing and grinding, the quartz sand is first graded, and the quartz sand with appropriate particle size are pickling to remove the impurities, and the products after acid pickling are dried by dewatering and rotary drier to obtain the final product.
Case 2:
HuNan 20TPH Silica Sand Production Line
This Silica sand processing project is a high purity quartz sand production line. Our company conducts repeated experiments on the raw silica sand, and finally determines to adopt pickling process after the roughing of flotation process. The leacing process greatly improve the purity of quartz sand. The whole pickling process is carried out in the closed special equipments without any pollution to the environment. Through leacing, and the final content of silica is greatly improved, reaching 99.92%. The iron content is under 20ppm which meets the requirement of high purity quartz sand.
Acid pickling technology of quartz sand is SINONINE’s strengths, the production line is reasonable design. Preliminary research to explore the residence time and acid concentration of acid pickling solution, along with the appropriate equipment, the actual production operation has achieved the desired effect. At present, the quartz sand produced has high whiteness and purity, obtained user's consistent high praise.
