Coal, slurry sand drying, and dewatering screens are special equipment used to process these materials and remove moisture from them. The following is a detailed introduction to these three types of material drying and dewatering screens, including their working principles, performance advantages, structural features, and usage precautions.
1. Working principle of dewatering screen
The dewatering screen mainly uses the vibration of the screen and the size of the screen holes to screen and dehydrate materials. Materials enter the screen frame through the feed port and are vibrated by the screen. Due to the effect of vibration, the moisture in the material is discharged through the sieve holes, while the solid particles remain on the sieve. At the same time, due to the inclination angle of the screen frame, the solid particles will slide downward along the inclination direction of the screen frame, thereby achieving solid-liquid separation.
2. Performance advantages of dewatering screen
• High dehydration efficiency: The dehydration screen adopts high-frequency vibration, which can quickly and effectively remove moisture from materials and improve dehydration efficiency. For example, for coal, slurry, and sand, dewatering screens can usually achieve high dewatering rates and significantly reduce the moisture content of the materials.
• Large processing capacity: It is suitable for dehydration treatment of large-scale production lines and can meet the processing needs of large quantities of materials. The design of dewatering screens usually takes into account the processing capacity requirements, ensuring efficient dewatering while maintaining high processing capacity.
• Good screening effect: Through the vibration and screening of the screen, impurities and fine-grained materials in the materials can be removed and the quality of the product can be improved. The mesh size of the dewatering screen can be adjusted according to material characteristics and dehydration requirements to achieve the best screening effect.
• Compact structure: The dewatering screen has a compact overall structure, a small footprint, and is easy to install and move. This makes the dewatering screen highly flexible and adaptable in sand-washing plants, coal preparation plants, and other places.
3. Precautions for using a dehydration screen
• Regular maintenance: Regularly check the wear of screens, vibration motors, and other components, and replace and repair damaged components in a timely manner. At the same time, regularly clean the blockages and impurities on the screen to ensure the normal operation of the equipment.
• Reasonable adjustment: Reasonable adjustment of screen hole size and vibration parameters according to material characteristics and dehydration requirements. A mesh that is too small may cause clogging, while a mesh that is too large may affect the dehydration effect.
• Safe operation: During the operation of the equipment, attention should be paid to safe operation to avoid personnel contact with the vibrating part and the transmission part. At the same time, ensuring that the power control box of the device is placed in a dry, well-ventilated, and well-ventilated place and used in accordance with formal instructions can extend the life of the system.
4. Specific cases of dewatering screens
Taking the coal dehydration screen as an example, a coal preparation plant uses a high-frequency dehydration screen to dehydrate coal. The dewatering screen has a large processing capacity and high dehydration efficiency, which can ensure that coal maintains a low moisture content during transportation and storage. At the same time, the screening effect of the dewatering screen is also very good, which can remove impurities and fine materials in coal and improve the quality of coal. During use, the dewatering screen showed good stability and durability, providing a strong guarantee for the production of the coal preparation plant.
