Trommel screen machine

Products Display

• High-Hardness Materials (Granite, Basalt, Iron Ore, etc.)

  ​​Material Characteristics​​: Ores such as iron ore, gold ore, and copper ore are typically hard and dense, with high compressive strength and strong abrasiveness. 

  ​​Screen Size Selection​​: For coarse screening of high-hardness ores, larger screen sizes (e.g., 100mm, 150mm) are used to quickly separate large-sized ore blocks. 

  ​​Model Selection​​: For screening high-hardness ores, it is recommended to choose trommel screen machines with larger drum diameters and thicker drum bodies, such as models with a drum diameter of Ø1500mm and above. 

  ​​Parameter Adjustment​​: The rotation speed should be appropriately reduced (generally 8 - 12rpm) to minimize the impact of hard ores on the drum and extend the service life of the screen. 

  ​​Case Study​​: In a large iron ore mine in Australia, a Ø1800×4500 trommel screen machine with different screen sizes (coarse screening at 150mm and fine screening at 30mm) is used for primary screening. 

• Medium-Hardness Materials (Limestone, Sandstone, Marble, etc.）

  Material Characteristics​​: Aggregates such as limestone, granite, and sandstone have a compressive strength ranging from 50 - 150MPa. They are relatively hard but less abrasive than ores, with a wide particle size distribution typically between 5 - 100mm.

  ​​Screen Size Selection​​: For coarse aggregate screening, screen sizes of 50mm, 80mm, and 100mm are commonly used. For fine aggregate screening, smaller screen sizes such as 10mm, 20mm, and 40mm are selected.

  ​​Model Selection​​: Medium-sized trommel screen machines, such as Ø1200×3000 and Ø1500×3500 models, are suitable for screening most aggregates. 

  ​​Parameter Adjustment​​: The rotation speed can be moderately increased (10 - 15rpm) to improve screening efficiency.

  ​​Optimization Measures​​: For aggregates used in high - quality construction projects, a more precise screening and cleaning process can be achieved by adjusting the screen size and cleaning intensity.