The quartz sand process plant mainly includes crushing, screening,
cleaning, grinding, impurity removal, purification, drying, and
packaging. The purpose is to remove small or trace impurities in
quartz sand and obtain highly difficult separation technology of
refined quartz sand or high-purity quartz sand. Quartz sand is a
kind of stone made of finely processed natural crystal stone,
silica, and quartzite. It can be used to make various glasses, as
water treatment filter material, or as blank material and shaft
material for ceramics and refractory porcelain.
High Purity Quartz Sand Processing:
1. Feeding & Screening
The quartz sand enters the vibrating screen through the feeder to
screen out qualified sand and gravel. Materials below 2mm enter the
scrubbing machine for cleaning. Particles above 2mm are transported
to the waste pile via a belt conveyor.
2. Washing & Dewatering
Quartz sand with a particle size of less than 2 mm is sent to the
scrubbing machine to clean the stone powder and dust, and the
impurities attached to the ore surface are washed away, and then
enter the spiral wash for the second cleaning. The material cleaned
by the spiral washer enters the dewatering screen for dehydration.
The sand and water mixture is extracted from the cleaning tank into
the slurry pump. The fine sand is collected by the centrifugal
force of cyclone, and then fed to the polyurethane screen from the
apex spray.
3. Grading process
The dehydrated material enters the hindered settler through the
collection box, and the particles are separated into 140-70 mesh,
70-40 mesh, 40-20 mesh, and below 20 mesh under the resistance of
gravity settlement and fluid. In the hindered settler, the
suspension enters the interior of the equipment through the inlet,
and the particles settle downwards under the action of gravity. At
the same time, the fluid is decelerated by the resistance inside
the equipment, so that the particles are not carried away by the
fluid during the settling process. Eventually, the particles form a
settling layer at the bottom of the equipment and are discharged
through the discharge port.
4. Magnetic separation and Purifying process
Particles of different sizes pass through the spiral chute and
enter the magnetic separator for magnetic separation. They are
separated under the action of magnetic force to remove the iron
magnetic substances contained in the quartz sand. Then it enters
the fine sand recovery machine for dehydration and fine material
recovery. The final product is fine quartz
