Coal Sorting Vibrating Screen

In coal processing, the Coal Sorting Vibrating Screen plays a crucial role in particle size classification, impurity removal, and dewatering/de-mediuming. It continuously screens raw coal, clean coal, middlings, and gangue, processing the materials to suitable sizes for subsequent crushing, washing, storage, and transportation. The equipment can be equipped with 1 to 6 layers of screens to meet different production requirements, including coarse screening, fine screening, and multi-stage grading. The screens are commonly made of wear-resistant high-manganese steel, high-elasticity polyurethane, and stainless steel woven mesh, maintaining a balance between aperture size, wear resistance, and screening efficiency. A single unit can achieve an hourly output of up to 20 tons. To reduce coal adhesion and screen clogging, the equipment employs an elastic screen surface, bouncing ball cleaning system, high-frequency self-cleaning, and backwashing mechanisms, minimizing the possibility of wet coal and fine coal clogging and ensuring stable operation.

How does the Coal Sorting Vibrating Screen screen coal?

The Coal Sorting Vibrating Screen continuously generates directional vibration force through a vibrator during screening, causing the screen box and screen surface to reciprocate in a straight line. Coal is evenly fed onto the screen surface, where it disperses and separates under the influence of vibration and its own gravity. Larger particles remain on the screen surface and move towards the discharge port, while smaller particles pass through the screen holes and fall below. By using screens with different layers and aperture sizes, it can separate coal of various particle sizes in one pass, and also separate moisture, media, and impurities. Vibration disperses sticky coal particles, accelerating the screening speed, and the anti-clogging structure keeps the screen holes clear, thus completing the coal sorting operation.

What are the advantages of the Coal Sorting Vibrating Screen?

The Coal Sorting Vibrating Screen has undergone several optimizations based on the actual conditions of coal sorting. Coal often contains fine mud and moisture. This equipment uses high-frequency vibration combined with water spraying on the screen surface to wash away the mud layer adhering to the coal particles, allowing for desliming and ash reduction in clean coal, thus improving the quality of the finished coal. Linear vibrating screens, for example, allow for adjustable screen angles, resulting in more uniform coal separation and improved processing capacity and screening efficiency. Compared to traditional screens, they can improve screening efficiency by 15% to 20%. The equipment's anti-clogging design considers both material and operating trajectory. When encountering moist, easily agglomerated fine coal, it uses large amplitude, high vibration intensity, and an elastic screen surface to alter the particle state and reduce clogging. The screen plates are made of high-wear-resistant polyurethane or wear-resistant steel, and the vibrator uses fully enclosed oil bath lubrication, extending the overall machine's service life.

Coal Sorting Vibrating Screen Model List

Coal Sorting Vibrating Screen Applications

Coal Sorting Vibrating Screens can adapt to various coal conditions. When processing dry, lumpy raw coal, it can separate large pieces from fine particles, providing uniform material for subsequent crushing. When encountering raw coal with high moisture content and easy agglomeration, the screen surface is less prone to clogging, allowing material to pass smoothly through the screen holes without affecting production. During the dewatering of fine coal slime and clean coal, it is used in conjunction with a high-frequency screen to complete solid-liquid separation, reducing the moisture content of the product and facilitating subsequent storage, transportation, and use. After washing, it can also separate coal gangue, impurities, and non-standard particles, improving the purity of the finished coal. The equipment can screen loose dry coal, moist fine coal, and slurry-like coal materials in coal preparation plants, coal mines, coking plants, and other scenarios.

The Coal Sorting Vibrating Screen operates stably and has reliable grading capabilities. It can be equipped with multi-layer screens and screen surfaces of different materials to meet the needs of high-volume production. During use, it can reduce problems such as screen clogging, component wear, and difficulties in screening wet coal. Whether it is dry coal, wet coal, coal slime, or gangue, the equipment can maintain stable operation. While grading materials, it can also improve the qualified ratio of coal products, allowing for better resource utilization, reducing losses during production, and lowering later maintenance costs. This equipment plays a role in coal preparation, coking, storage, and transportation.