Roller pressAlso known as extrusion mill or roller press mill, it is a new type of energy-saving cement grinding equipment developed internationally in the mid-1980s. It can replace the high-energy-consuming, low-efficiency ball mill pre-grinding system, reduce steel consumption and noise, and is suitable for both new plant construction and technical transformation of old plants. The output of the ball mill system can be increased by 30–50%. After extrusion, the material cake contains 20–35% of fine particles below 0.08mm and 65–85% of particles smaller than 2mm. The internal structure of small particles is filled with numerous micro-cracks due to extrusion, significantly improving grindability. The roller surface is hot-welded, making wear layer maintenance more convenient.
The roller press produced by Fulan Heavy Industry.Applying the principle of low energy consumption in high-pressure bed粉碎, this equipment adopts a unitized crushing and group-based working method. Brittle materials are subjected to high-pressure extrusion (the pressure zone of the machine is approximately 150 MPa), which rapidly reduces the particle size of the materials. The content of fine powder smaller than 0.08 mm reaches 20-30%, and materials smaller than 2 mm account for over 70%. Additionally, a large number of cracks are generated in all extruded materials, significantly reducing the energy consumption required for grinding in the subsequent process. The grinding system using this equipment can increase production by 50-100% compared to systems without it. Moreover, due to low wear, the unit grinding consumption is greatly reduced, while the equipment operates with lower noise and dust emission, improving the working environment. This fully demonstrates its significant economic and social benefits.

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