Quartz Sand Mine Produces Quartz Sand

The process can be divided into wet method and dry method.

my country mainly adopts wet beneficiation.

Although the wet beneficiation process varies,

But the general process flow is: three-stage crushing - wet grinding - classification - iron removal.

  (Dry production site )  

(Wet production site)

wet process

Wet beneficiation mainly removes impurities, especially iron impurities, in raw quartzite ore by mechanical scrubbing combined with 

magnetic separation, flotation,acid leaching and other processes.The main flow of the wet process is: crushing of raw ore → grinding 

→ washing with water → magnetic separation → hydraulic classification → quartz concentrate. 

The main product of the wet process is 20~120 mesh wet sand, which is then pickled and flotated to form 60~140 mesh refined 

quartz sand, which can be used for solar borosilicate glass collector tubes, medicinal glass and high temperature resistant pressing 

Production of special glass.

In the process flow, the core of the wet process is to use the traditional mechanical scrubbing iron removal technology of stone 

wheel grinding, and cooperate with magnetic separation to remove iron impurities in the quartzite ore.my country's wet processing 

of quartz sand raw materials is mainly distributed in Fengyang, Anhui, Linyi, Shandong and Shahe, Hebei. Yinan ordinary quartz sand 

contains 90%~99% SiO2 and 0.06%~0.02% Fe2O3 content. 

The surface is covered with yellow skin, and the particle size range is 0.85~4.00mm. Fengyang ordinary quartz sand contains 

SiO2≥99.3% and Fe2O3≤0.030%, and the particle size is 0.037~0.85mm. Shahe ordinary quartz sand contains 99.5%~99.9% SiO2, 

Fe2O3 is less than 0.005%, and contains more mica.

dry process

Dry production does not use water, saves energy, has no dust pollution, and has low iron content in the product. Wet production 

yields high yields.

The main process of the dry process is: rough crushing of raw ore by jaw crusher → secondary crushing → screening and soil removal 

→ rod mill grinding → magnetic separation → coarse separation → fine separation → cyclone, in which coarse separation and fine 

separation are performed. Separation will produce 20~120 mesh 

silica sand, which can be used for the preparation of float glass. After the product of the dry process is processed by flotation, by-products 

such as 120-mesh fiber sand can be obtained.

The dry process is a mature process widely used by domestic quartz sand production enterprises. It can produce products with different 

particle sizes and different moisture content at any time according to the requirements of the enterprise. The equipment is large-scale, 

highly automated, and has no dust pollution. Recycling, does not pollute the surrounding environment.