[Overview]: Quartz sand production line (silica sand processing) is an industrial system that specializes in producing high-purity quartz sand for glass, photovoltaic, electronics and other industries. According to the characteristics of raw materials and product requirements. The core goal is to reduce the iron content (Fe₂O₃) and control the particle size through crushing, magnetic separation, classification and other links.
[Production line advantages]: Aiming at the quartz sand used in glass, ceramics and other industries, our company has developed an energy-saving and environmentally friendly quartz sand wet production line. The characteristics of this production line are: using the process equipment professionally designed by the company, greatly saving energy consumption, and achieving zero discharge of sewage and dust. It has the advantages of large output, high purity and no pollution, high degree of automation, stable and reliable process, etc. The core of this production line is the magnetic separation equipment, strong magnetic separation of iron from silica sand.
A typical silica sand processing line mainly includes the following steps: ore crushing → grinding and sand making → screening and grading → washing and desliming → magnetic separation → flotation → dehydration.
First, according to the original ore's particle size, hardness,impurities and other characteristics,select 1 to 3 levels of crushing process to reduce the original ore particle size.The vibrating feeder feeds the large pieces of raw ore into the jaw crusher evenly and quantitatively for primary crushing.The crushed raw ore then enters the cone crusher to further reduce the particle size of the raw ore.Finally, the small pieces of raw ore fall into the vertical sand making machine for pre-grinding and are made into granular ore that meets the process requirements.Then it is lifted by the belt conveyor and enters the silo of the grinding process.The vibrating feeder at the bottom of the grinding silo vibrates the ore evenly into the high-frequency vibrating screen for preliminary selection.The large-particle ore sand on the screen enters the ceramic ball mill for grinding.
02
Desludging and Classification
The ground slurry is transported to the desludging bucket through a slurry pump for the first desludging and impurity removal process.The slurry with mud and sand impurities removed passes through the lower part of the desludging bucket and enters the hindered settlement machine for particle size classification.The equipment returns most of the unqualified ore pulp to the ceramic ball mill for re-grinding,and the qualified ore pulp is transported to the concentration bucket for the second desludging and impurity removal process.The raw ore slurry enters the hydraulic classifier from the concentrate port at the bottom of the thickening bucket.Under the combined effect of turbulence and gravity in the hydraulic classifier,the tailings are discharged into the tailings pond through the tailings pipeline at the top.
03
Magnetic Separation
Qualified raw ore pulp enters the magnetic separation and impurity removal process stage.First, the pulp enters the GTGB Permanent Magnet Wet Belt Magnetic Separator,which is a patented product of the company and can efficiently separate most magnetic impurities.The pulp after impurity removal enters the GTLH Wet High Intensity Magnetic Separator.Under the action of the extremely strong induction magnetic field of up to 20000 Gauss,the fine-grained weak magnetic impurities in the pulp are completely separated and enter the tailings pond through the slag discharge pipeline.The concentrate slurry is pumped into the thickening bucket by the slurry pump for thickening and dehydration process.The concentrate slurry after preliminary concentration enters the vibrating dewatering screen.Finally,the dried and qualified concentrate is sent to the finished product silo,waiting to be packaged and shipped out of the factory.
04
Tailings Treatment
All tailings generated in the entire quartz and feldspar wet production line are collected and sent to the tailings treatment process.First, the tailings slurry is discharged into a thickening tank with a thickener.After being clarified by the thickener,the beneficiation water is discharged from the overflow tank,and the concentrated tailings slurry is discharged from the central discharge port.Then the tailings are pumped to the ceramic filter for the final dehydration process.The ceramic plate group covered with micropores separates the solid and liquid of the tailings slurry. The separated water can be reused as mineral processing water. The tailings sludge is sent to the tailings yard by the belt conveyor.
As a bright new star of non-metallic mineral materials, quartz sand has only a short development history of more than ten years, but it has been widely used in traditional fields such as ceramics and glass, building materials, enamel, chemicals, casting, fireproof materials, etc. Moreover, due to the unique physical and chemical properties of quartz sand, it occupies a pivotal position in aviation, aerospace, electronics, machinery and today’s rapidly developing IT industry.
When planning and configuring a silica sand production line, there are several key points to consider:
1. Clearly define product positioning: Product positioning directly determines the complexity and investment scale of the production line. For example, producing photovoltaic glass or electronic-grade high-purity quartz sand requires extensive purification processes such as high-intensity magnetic separation (even high-gradient magnetic separation), flotation, and acid washing.
2. Focus on environmental protection and energy conservation: Selecting equipment equipped with dust removal and noise reduction devices, as well as comprehensive wastewater treatment and recycling systems, has become standard for modern production lines.
3. Consider integration and automation: Prioritize equipment with a high degree of integration, which helps save space, reduce energy consumption, and facilitate management.
4. Consider investment and operating costs: While meeting process requirements, comprehensively compare equipment price, energy consumption, durability, and maintenance costs to select the option with the best value for money.
(Key words: Quartz sand processing plant，Quartz purification，Quartz sand production line，Quartz glass sand production line，Silica sand processing，Silica sand purification.)
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