A slap screen (also known as a standard slap screen) is a laboratory screening device that combines vertical slapping and horizontal rotational motions. It is primarily used for particle size analysis and material classification testing. Its core feature is its hybrid motion mode, which improves screening efficiency. It is particularly suitable for processing high-precision materials prone to clogging. The following is a comprehensive technical overview and application description:
I.Structure and Working Principle of the Slap Screen
（1）Core Components Transmission Mechanism: The motor drives the gears through a synchronous belt, driving the main shaft and the eccentric wheel, which drives the slide to rotate the screen tower left and right. Slapping Mechanism: A hammer driven by a top rod gear periodically strikes the top cover of the screen frame to assist in dispersing the material. Sieve Compatibility: Supports standard sieve towers of 75mm, 100mm, 200mm, and 300mm diameters, and can accommodate a variety of screen types, including woven wire mesh and perforated plate.
（2） Motion Parameters Slapping Frequency: 156 ± 3 times/min, Slapping Height: 38 ± 6 mm. Rotation Speed: 290 ± 6 times/min, ensuring even material distribution.
2、Slap Screen Operating Procedures and Specifications
（1） Preparation Before Use Sample Preparation: Thoroughly dry the sample (oven drying at ≤ 50°C) to remove any lumps. The thickness of each layer of screen material should not exceed 1/2 the height of the screen frame. Sieve Tower Assembly: Stack the screens in descending order of aperture, place a receiving dish at the bottom, and secure the top with a butterfly nut to prevent loosening.
（2） Operation Settings Time Control: Normal screening time is 5-15 minutes (extended to 30 minutes for difficult-to-screen materials). Parameter Adjustment: For fine screens or brittle materials, it is recommended to reduce the tapping frequency to 100 times/minute.
（3） Maintenance Tips Cleaning: Gently brush the screen in the opposite direction with a soft brush or blow with low-pressure compressed air. Avoid cleaning with strong acids or alkalis. Lubrication: Regularly lubricate the transmission components and maintain an appropriate level of lubricant in the base.
3.Applications and Advantages of the Slap Screen
(1)Applicable Industries: Geology, metallurgy, chemical engineering, building materials, pharmaceuticals, and defense research laboratories. It is particularly suitable for high-intensity screening needs such as diamond micropowder and superhard materials.
(2) Technical Advantages Anti-blocking Design: The slapping vibration effectively prevents material from clogging the screen surface, improving mesh penetration. Efficient Screening: The compound motion mode shortens screening time and ensures accurate particle size analysis.
4.Precautions Safe Operation:
Check the locking status of the screen tower before starting. Do not screen wet or sticky materials. Calibration Requirements: Calibrate the screen accuracy monthly using a standard sample. Replace damaged screens promptly.
If you have any further questions, please call 13403738206.
