Quartz Processing Flow Production Line
Quartz forms when silicon and oxygen combine in the earth. It is found in massive form in late-melt igneous deposits such as pegmatites and often occurs with other materials such as spodumene (a lithium ore), feldspars, garnet and micas. As quartz is one of the major constituents of continental rocks, it is found in large quantities as silica sands after millions of years of mountain-building cycles and erosion. It is most often extracted from the ground through open pit mining methods using backhoes and bulldozers.
After it is removed from the earth, quartz may typically undergo a range of size reduction through crushers such as Jaw crushers, Cone Crushers, Impact Crushers and Hammermills. Further size reduction is typically done with rod and ball mills to liberate the quartz from other minerals.
Quartz (and silica sands) is a key ingredient in many products. Most often, quartz is sold based on the size of the particles. These uses can include sand for concrete, golf courses, baseball fields, volleyball courts, oil and gas production (frac sands), foundry sands, sandpaper, glass, fiber glass and water purification systems.
To create the finer sizes (also known as silica flour) required for fillers for putty, paint and rubber, the quartz can be ground using jet mills and attrition mills.