Turkey 1,500t/d Quartz Glass Sand Processing Plant

GUOTE SOLUTION

• 1

  Crushing: The raw ore is crushed to a particle size of less than 3 cm in a jaw crusher and a cone crusher. The ore is then conveyed to the mill via a buffer silo and feeder via a belt conveyor.

• 2

  Sand Making and Screening : The mill grinds the crushed raw material into sand, which is then screened on a post-grinding screen (2-3 mm aperture). The undersize product enters the slurry tank, while the oversize product returns to the mill via a return belt for secondary sand making.

• 3

  Cleaning and Desludging : The slurry in the slurry tank is pumped into a scrubber via a slurry pump. This mechanical, flexible, and frictional process removes colloids, film-forming iron, and aluminum impurities from the sand particles. The slurry is then pumped to a desludging hopper (located above the grading tower) to separate sand, mud, and impurities, reducing the mud content and balancing the slurry concentration.

• 4

  Classification: After desliming, the product enters an obstructed settler to separate coarse particles larger than 26 mesh (adjustable). These particles are then returned to the mill for re-grinding via a return device. The obstructed settler is equipped with a safety screen to improve classification efficiency. Products below 26 mesh enter a hydraulic classifier to further separate fine particles below 140 mesh. The output products of both the obstructed settler and the hydraulic classifier are of acceptable particle size.

• 5

  Magnetic Separation for Iron Removal : Qualified products first pass through a medium-magnetic plate magnetic separator (magnetic field strength 4000-4500 GS) to remove mechanical iron. They then pass through a high-magnetic plate magnetic separator (12000-13000 GS) to remove all mechanical iron and some weakly magnetic iron. Finally, two series-connected vertical ring high-gradient magnetic separators (electromagnetic, strength 1.4 T) are used for deep iron removal.

• 6

  Flotation Purification and Dewatering : After magnetic separation, the product enters a thickening hopper for concentration and is then conveyed to the flotation equipment for dealuminization, de-ironization, and silicon extraction. After flotation, the product passes through a dewatering screen to reduce moisture and is then conveyed by belt to the finished product area for the next process.

• 7

  Water Circulation and Sludge Handling : The system is equipped with a thickener, which collects water from all processes, settles the sludge, and returns the clean water to the wet grinding system for reuse. The settled sludge is pumped into a filter press or ceramic filter for water separation. After dehydration, the dry sludge cake is transported to a storage shed for storage. Fine sand passes through a thickening hopper, where water is simply controlled and collected as secondary sand.

• 8

  Final Product and Environmental Design: The overall process products include concentrated sand, secondary sand (fine sand), and dry sludge cake. There is no external discharge throughout the entire process, requiring only a small amount of make-up water.