Glass-grade Silica Sand Processing Line

Glass-grade Silica Sand Processing Line 3

Glass-grade Silica Sand Processing Line 4

Glass-grade Silica Sand Processing Line 5

Glass-grade Silica Sand Processing Line 6

Glass-grade Silica Sand Processing Line 7

Glass-grade Silica Sand Processing Line

Glass-grade silica sand processing line is a complete system for preparing high-purity silica sand, specifically designed for the glass, photovoltaic, electronics, and ceramics industries. Utilizing a mature and stable wet processing technology, it sequentially completes the entire process from raw ore crushing, grinding and sand making, sand washing and desliming, screening and grading, magnetic separation for impurity removal, and dewatering and refining. This effectively improves the purity of the silica sand and stably produces high-quality quartz glass sand that meets industry standards.

This processing line is equipped with professionally customized equipment, effectively reducing energy consumption and achieving zero wastewater discharge, making it green and pollution-free. With a high-performance magnetic separator at its core, it can completely remove magnetic impurities from quartz sand, boasting numerous advantages such as high finished product purity, large production capacity, high degree of automation, and stable and reliable process.

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PROCESS DESCRIPTION

01

Crushing and Grinding

First, a 1- to 3-stage crushing process is selected based on the particle size, hardness, and impurity characteristics of the raw ore to reduce its size. A vibrating feeder uniformly and quantitatively feeds large raw ore blocks into a jaw crusher for primary crushing. The crushed ore then enters two stages of cone crushers for intermediate and fine crushing, further reducing the particle size. Finally, the crushed small-size material enters a ball mill for wet grinding to achieve the required product particle size. A post-grinding screen is installed after the ball mill; oversized particles on the screen are returned to the ball mill to form a closed-circuit cycle, while the fine sand passing through the screen enters the slurry pool.
02

Desliming and Classification

The slurry in the slurry pool is pumped to a desliming hopper for the first stage of desliming and impurity removal. After the mud and impurities are removed, the slurry enters a hindered settling classifier for coarse particle classification. The classifier returns most of the unqualified slurry to the ball mill for regrinding. The material discharged from the hindered settling classifier passes through a safety screening sieve to prevent unqualified large particles from entering the final product. The qualified slurry is then transported to a thickening hopper for concentration and dewatering, while further removing residual mud. The concentrate outlet at the bottom of the thickening hopper feeds into a hydraulic classifier. Inside the hydraulic classifier, fine sand particles are removed from the slurry, and the qualified material is sent to the subsequent magnetic separation stage.
03

Magnetic Separation and Impurity Removal

The qualified raw ore slurry enters the magnetic separation process. First, it passes through the company's patented GTGB permanent magnet wet belt magnetic separator, which efficiently separates the majority of magnetic impurities. The purified slurry then enters a GTLH wet high-intensity magnetic separator. Under a super-strong induced magnetic field of up to 20,000 Gauss, fine weakly magnetic impurities are completely separated and discharged into the tailings pond via the tailings pipeline. The concentrate slurry is pumped into a thickening hopper for concentration and dewatering. The preliminarily concentrated slurry then enters a vibrating dewatering screen. The dewatered concentrate is discharged into a finished product drainage reservoir. After a certain period of drainage, the product is ready for packaging and shipment.
04

Tailings Treatment

All tailings generated from the entire wet processing production line for quartz and feldspar are collected and sent to the tailings treatment process. First, the tailings slurry is discharged into a rake thickener. After clarification by the thickener, the process water is discharged from the overflow launder, and the concentrated tailings slurry is discharged from the central outlet. The tailings are then pumped to a filter press or a ceramic filter for final dewatering to achieve solid-liquid separation. The separated water can be recycled as process water, while the tailings mud is transported to the tailings yard via a belt conveyor.

PROCESSING FLOW

When planning and configuring a quartz glass sand production line, four core elements must be comprehensively considered: Clarify product positioning: Different product standards dictate the complexity of the production process and the scale of investment. For instance, photovoltaic glass and electronic-grade high-purity quartz sand require advanced deep purification processes such as high-gradient magnetic separation, flotation, and acid washing. Fulfill environmental and energy-saving requirements: The entire production line must be equipped with a comprehensive wastewater treatment and recycling system to comply with green production standards. Select highly integrated automated equipment: Opting for complete sets of automated equipment saves floor space, reduces energy consumption, and simplifies on-site management. Balance overall costs: While meeting process and capacity requirements, it is essential to compare equipment procurement costs, operational energy consumption, service life, and maintenance expenses to select a complete solution with the optimal cost-performance ratio.

SUCCESSFUL CASE

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