Application of Warman AHR Rubber Lined Slurry Pumps in Quartz Sand Concentrator

Application of Warman AHR Rubber Lined Slurry Pumps in Quartz Sand Concentrator 

The main slurry pumps used in quartz sand mineral processing include:  3/2C-AHR , 4/3C-AHR , 6/4D-AHR and other slurry pump models. Mainly rubber slurry pumps.

The quartz sand beneficiation process is mainly purification, which removes small or trace amounts of impurities in the quartz sand, and is a difficult separation technology to obtain refined quartz sand or high-purity quartz sand. The quartz sand purification processes at home and abroad mainly include water washing, graded desliming, scrubbing, Magnetic separation, flotation, acid leaching, microbial leaching, etc.

Process introduction

• Water Washing and Graded Desliming
  

The grade of SiO2 in quartz sand decreases as the quartz sand particle size becomes finer, while the grade of impurity minerals is the opposite. This phenomenon is particularly obvious in quartz sand containing a large amount of clay minerals, so the quartz sand raw ore must be inspected before selection. Washing and desliming are very necessary.

• Scrub

Scrubbing uses mechanical force and the abrasion force between sand grains to remove thin film iron and muddy impurity minerals on the surface of quartz sand and further grinds the mineral aggregates that have not become monomers, and then performs classification operations to further purify the quartz sand. At present, There are two main methods: rod friction scrubbing and mechanical scrubbing.

• Flotation

The separation of mica and quartz is difficult, and good results can be obtained by flotation using anionic collectors under acidic conditions or anionic-cationic collectors under alkaline conditions. Generally, after scrubbing, desliming, magnetic separation and flotation, the purity of quartz sand can reach more than 99%, which basically meets the needs of industrial

• Acid Leaching

Dilute acid has a significant effect on the removal of iron and aluminum, while for the removal of titanium and chromium, concentrated sulfuric acid and aqua regia are used for acid leaching treatment. Usually, a mixed acid composed of the above acids is used for the acid leaching removal of impurity minerals. The control of various factors in acid leaching should be based on the requirements of the final grade of quartz, and the concentration, temperature, and dosage of acid should be minimized as much as possible to achieve quartz purification at lower beneficiation costs.

After transformation, the chemical composition of the purified quartz sand meets the quality requirements of silicon micro powder. After ultrafine grinding, it can be applied in industries such as ceramics, coatings, and metal casting.