Home > Production Line > Screening quartz sand production line
This production line is a complete screening and conveying production line customized by XIANFENG for a large sand processing plant in Jeddah, Saudi Arabia in 2022. Used for screening six specifications of sand and gravel materials, including 40-50 mesh, 50-60 mesh, 60-70 mesh, 70-80 mesh, 80-90 mesh, and 90-100 mesh, for quartz sand. As the customer requires 25t/h and a screening accuracy of 95%, we have selected a double composite square swing screen as the screening equipment for this project, and equipped it with a bucket elevator, belt conveyor, silo, and other supporting equipment to complete the entire solution.
[Mixed material transportation - loading - feeding - screening - finished product transportation]
·【Screening Equipment】 Square Swinging Screen: A screening equipment suitable for large-scale and high-precision screening of materials with a mesh size of 20-300 (0.05-0.8mm).
·Belt conveyor: It is a commonly used conveying equipment in engineering projects, suitable for continuous operation with high load and large conveying capacity. It has the characteristics of wear resistance, impact resistance, simplicity and durability, and adjustable inclination angle.
·Bucket elevator: commonly used for lifting operations in engineering projects, it can continuously and stably transport materials vertically or at large angles, and is used for uniform feeding of materials. It is a commonly used supporting equipment in production lines.
·【Storage Equipment】 Cache Storage Bin: Carbon steel material storage bin, with a bottom conveying pipeline connected to the feeding port of the screening machine for uniform feeding. The shape, size, and material can be customized according to needs.
This is a universal production line that can be used for screening, conveying, and processing raw materials in various mining industries. Common mineral materials include iron ore, coal, quartz sand, fracturing sand (ceramic grain sand), perlite, calcite, potassium feldspar, dolomite, etc
The core advantage of the square swing screen is the use of a "simulated artificial swing" three-dimensional motion trajectory (horizontal, inclined, and flipping composite motion) to evenly distribute quartz sand on the screen surface, making it less likely to clog the screen mesh. It can accurately separate particles of different sizes (such as 0.5-1mm, 1-2mm, 2-5mm, etc.), with a classification accuracy of over 95%, and can meet the purity and particle size requirements of quartz sand in high-end fields such as glass, photovoltaics, and electronics.
Multi layer screen design: A single square swing screen can be configured with 2-5 layers of screens and can be used in a double composite form, with one device for double screening. Complete multi granularity grading at once, reduce equipment footprint, and improve screening efficiency (processing capacity is usually 1-50 tons/hour, can be customized according to production capacity requirements).
Strong adaptability of the screen mesh: In response to the high hardness of quartz sand, the screen mesh is often made of wear-resistant materials (such as stainless steel woven mesh and polyurethane screen mesh) to extend its service life and avoid screen wear and material pollution.
Low damage conveying: The supporting conveying equipment (such as belt conveyors and bucket elevators) adopts a low-speed and flexible conveying design to reduce collision wear between particles, decrease the crushing rate of quartz sand, and reduce the amount of dust generated, based on the angular characteristics of quartz sand.
Smooth connection: The conveyor line can be flexibly designed according to the screening process, achieving seamless connection from the raw material bin to the square swing screen and grading bin, reducing material accumulation and residue, and improving the automation level of the production line.
Equipment material upgrade: The screen frame, inlet, outlet and other components of the square swing screen that come into contact with the material are mostly made of high wear-resistant stainless steel (such as 304, 316) or high manganese steel, which are impact resistant and wear-resistant, avoiding rapid wear and tear of the equipment caused by quartz sand.
Optimization of vulnerable parts: The screen tensioning device uses high-strength bolts to ensure that the screen is not easily loosened during high-frequency swinging; The equipment bearings are selected with sealed wear-resistant models to reduce dust intrusion and extend maintenance cycles.
Transportation equipment protection: The conveyor belt of the belt conveyor adopts wear-resistant rubber belt or polyester canvas belt, and the feeding point is equipped with buffer rollers and wear-resistant lining plates; The blades of the screw conveyor are made of high chromium cast iron to reduce the grinding damage of quartz sand.
Linkage control: The production line can integrate a PLC control system to achieve the linkage operation of the square swing screen, conveyor, and silo (such as automatically adjusting the screen machine speed and conveyor speed according to the silo material level), reducing manual intervention.
State monitoring: equipped with vibration sensors, current monitoring devices, etc., to monitor the real-time operation status of the screening machine (such as whether there is material blockage, whether the screen mesh is damaged) and the load of the conveying equipment. In case of abnormalities, it will automatically alarm and shut down, reducing the risk of failure.
Adjustable parameters: The amplitude and frequency of the square swing screen can be adjusted by a variable frequency motor to meet the screening needs of quartz sand with different particle sizes; The conveying speed can be controlled by a speed regulating motor to match the screening capacity and avoid material backlog.
Dust control: The square swing screen is equipped with a sealed screen box, combined with a negative pressure dust removal device (such as a pulse dust collector), to collect and process the dust generated during the screening process; Dust covers are installed at the feeding points of the conveyor to reduce dust spillage during transportation and ensure that the dust concentration in the workshop meets national standards (≤ 10mg/m ³).
Noise control: The screening machine adopts elastic support to reduce the noise generated by vibration transmission; The motor and reducer are equipped with soundproof covers, and the rollers of the conveying equipment use silent bearings. The overall noise can be controlled below 85 decibels.
Wastewater recycling: If the production line involves quartz sand cleaning, a water circulation system can be installed to filter and reuse the cleaning wastewater, reducing water resource consumption and sewage discharge.
Capacity adaptation: According to the production demand of quartz sand (from a few tons/hour to hundreds of tons/hour), single or multiple square swing screens can be flexibly configured for parallel operation, and the bandwidth and length of the conveying equipment can also be customized as needed.
Site adaptation: The layout of the production line can be adjusted according to the site space, and the vertical structure of the square swing screen and the bendable design of the conveyor can adapt to narrow or complex site environments.
Function extension: It can add auxiliary equipment such as iron remover (to remove iron impurities from quartz sand) and magnetic separator (to separate magnetic minerals) to improve the purity of quartz sand; It can also be equipped with drying equipment to process damp quartz sand and avoid clumping and blockage during screening.
In summary, the quartz sand square swing screen screening and conveying production line is centered around "high-precision screening, strong wear-resistant design, high automation control, and excellent environmental performance". It can meet the strict requirements of quartz sand for particle size classification and purity, as well as adapt to its high hardness and dust generation characteristics. It is a key production equipment for efficient, stable, and environmentally friendly quartz sand deep processing.
