Industrial quartz sand raw material grade is lower and lower, so that it can not meet the needs of industry, but we can provide its grade through the following methods of purification.There are mainly the following methods:
1, scrub mud.
Scrubbing refers to the use of mechanical force and sand between the grinding and stripping force to remove the surface of the quartz sand film iron, adhesion and mud impurity minerals and further wipe off the monomer of the mineral aggregate, and then the grading operation to further purify the quartz sand effect.At present, there are mainly rod friction and mechanical cleaning.The main factors affecting the scrubbing effect are the structure characteristics and configuration of the scrubbing machine.The minor factor is to swab time, swab concentration (swab concentration is general with 50% - 60% advisable).
2, magnetic separation.
Magnetic separation is mainly used to remove the magnetic minerals in quartz sand, such as hematite, limonite, biotite and other weak magnetic minerals can be removed by ferromagnetic machine, and strong magnetic minerals such as magnetite can be removed by weak magnetic separator.
3. Flotation.
Flotation is used to remove feldspar, mica and other impurities in quartz sand that cannot be removed by magnetic separation and further improve its purity.
4. Acid dip.
Acid leaching is characterized by the fact that quartz is insoluble in acid (except HF acid) while other impurity minerals can be dissolved in acid solution, so further purification of quartz can be achieved.
5. Microbial leaching.
It refers to the use of microbiological leaching of quartz sand particles on the surface of the film iron or iron impregnation, which is a newly developed iron removal technology.
The production process of quartz sand purification is roughly as follows:
Large stone into the warehouse -- select coarse break -- select fine break -- sand machine vibration screening -- sand washing machine washing finished sand -- dryer drying or natural drying.
Weifang Guote, mining equipment co., LTD., specializing in the production of quartz, feldspar related equipment, including wet ball mill (grinding) production line, dry ball mill with sorting machine production line, high purity stone English system sand machine, air classifier, the board type magnetic separator, drum washing machine vertical ring high gradient magnetic separation machine, hydraulic classifier, scrubbing machine, dryer, electromagnetic, permanent magnetic iron remover, dry wet magnetic separator, vibrating feeder, dust collector, the flotation machine, metal detector, screw conveyor, quantitative feeding speed regulation says, centralized control system, etc.Welcome to visit and purchase.
