The three-roll mill is referred to as the three-roll machine, which is suitable for the manufacture of paint, ink, pigment, plastic and other slurries. It is the most effective grinding and dispersing equipment for high viscosity materials. The material of the roller is centrifugal casting of chilled alloy cast iron, and the surface hardness is above HS70°; the diameter of the roller is finely ground after high-precision grinding, so that the grinding fineness of the material can reach about 15μm, so it can produce uniform and fine quality product. SM405, SM315, and SM260 three-roller machines are used for mass production, and SM160, SM120, and SM65 are used for small batches or laboratories.

Three-roll mill application features:

• It is the most effective grinding and dispersing equipment for high viscosity materials. Mainly used for the grinding of various paints, inks, pigments, plastics, cosmetics, soaps, ceramics, rubber and other liquid slurries and paste-like materials. The grinder has three drums mounted on an iron frame with the center in a straight line. Can be installed horizontally, or slightly inclined. The grinding effect is achieved by the mutual extrusion of the surfaces of the three horizontal rollers and friction at different speeds. The steel drum can be hollow and cooled by water. The material is added between the middle roll and the rear roll. Because the rotation directions of the three drums are different (the rotation speed increases sequentially from the back to the front), a good grinding effect is produced. After the material is ground, it is scraped off by a scraper installed in front of the front roller.

• Usually, the material of the roller of the three-roll mill is centrifugal casting of chilled cast iron, and the surface hardness is above HS70°; About 15μm, so it can produce uniform and fine high-quality products. SM405, SM315, and SM260 three-roller machines are used for mass production, and SM160, SM120, and SM65 are used for small batches or laboratories.

The use of three-roll mill

The industrial three-roll mill mainly refers to the 3R Raymond mill, and its industrial application is mainly concentrated in the processing of fine ore powder. Raymond mill to carry out. Raymond mills are commonly used in mineral powder processing, such as the processing of limestone powder for construction, cement processing and coatings. Three-roll mills are often used in putty powder production lines.

The use of three-roll mill to process mineral powder is generally the processing of coarse powder, but some customers also regard the mineral powder processed by Raymond mill as ultra-fine powder, which is unscientific. The scientific way is ultra-fine powder. The particle size is above 325 mesh, and even nano-scale mineral powder can be regarded as ultra-fine powder.

Most industries do not need ultra-fine powder. For example, the fineness of mineral powder for construction is generally about 80-200 mesh, the fineness of paint is about 60 mesh, and the fineness of paint is about 400 mesh. The requirements can be met by using Raymond mill. However, with the development of my country's industry, Raymond mill is far from meeting the needs of production, so more advanced pulverizers have emerged as the times require. Now the equipment for processing ultra-fine powder is called three-ring medium-speed micro-powder mill, which can process Various ore fine powders, such as calcite, barite, limestone, etc., which can also be processed with a fineness of up to 3000 mesh. It is currently the equipment with high fineness for processing ore powders, and may replace the three-roll mill in the future.

Conclusion

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