Silica sand is processed by crushing, screening and washing of
natural quartz ore. It is mainly used in glass industry, foundry
industry, condiment field, metal silicon production and electronic
industry.
With the rapid development of industrial technology, the demand for
silica sand production is increasing day by day, which brings about
higher requirements for silica sand production technology.
Silica sand processing includes coarse silica sand processing and
high purity silica sand purification. Now, introduce the 2 kinds of
silica sand processing solutions:
1. Coarse Silica Sand Processing
Ore Sorting → Rinse → Primary Crushing → Secondary Crushing → Sand
Making → Grading & Dewatering → Scrubbing → Secondary Iron Removal
→ Dewatering + Slurry Adjustment + Flotation (Iron Removal) →
Dewatering + Slurry Adjustment + Flotation (Mica Removal) →
Dewatering + Slurry Adjustment + Flotation (Feldspar Removal) →
Clean → Dewatering
2. High Purity Silica Sand Purification
(The following operations are performed on the basis of coarse
silica sand)
Acid leaching → Deionized Washing → Dry → Packing
Basic Flow of Coarse Silica Sand Production Line
1. Silica sand is fed into the feeder by forklift truck. Belt
conveyor is placed at the tail of the feeder. Silica sand from the
tail is conveyed by belt conveyor to jaw crusher for primary
crushing.
2. The coarse material produced by primary crushing is transported
by conveyor to fine crusher for further crushing. The fine crushed
material enters the vibrating screen to screen out two kinds of
materials, the quartz stones that meet the feed size of the sand
making machine fed into sand machiens, The return materials that do
not meet the feed requirements return for fine crushing.
3.Part of the quartzite that fed into sand machine becomes silica
sand. After washing by sand washer (optional) and recycling by
fines recovery unit, finished quartz sand achieved. The other part
of the quartzite return for crushing again.
