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Rotor Dryer Mill - MRD

 

  • It adopts rotor type grinding, multi-layer grinding cutter head, strong shearing force and dispersing force, which can be used for the disintegration of agglomerates, the grinding and drying of water-containing materials and the grinding of fiber materials;
  • Especially suitable for the disintegration and reduction of agglomerated materials, such as: light calcium, kaolin, aluminum hydroxide, magnesium oxide, and ultrafine pulverization of heat-sensitive materials such as polyvinyl alcohol, PVC, PE, and cellulose. Widely used in non-metallic mining, chemical, fuel, feed, food and other industries;
  • Particle size range: D50: 3~45μm.

Product features

  • The rotor speed can be adjusted,up to 160m/s.
  • The hot air temperature of drying design, up to 450℃.
  • Set modifier injection nozzle on the mill cavity.
  • The built-in classifying design can better control the particle size of the product.
  • Strong shearing force, suitable for crushing tough and fibrous materials.
  • Fast crushing speed, suitable for crushing heat-sensitive materials, and a cooling process system can be added for materials with extremely low melting points.
  • According to different project needs, we have different blade designs and liner designs.
  • Main material can be carbon steel, wear-resistant steel, stainless steel.
  • Blade material can choose wear-resistant steel, stainless steel, tungsten carbide.
  • Lining plate material can choose carbon steel, wear-resistant steel, stainless steel, alumina ceramics.

Working Principle

Drying and dispersing machine, also known as Multi-Rotor Dryer Mill, is jointly designed by our German technical experts and British technical experts. It can’t only achieve high-efficiency grinding, but also has excellent drying, dispersing and depolymerization, and modification functions. Its vertical shaft is equipped with multi-layer rotors, and max up to 10 layers of rotors. There are multiple evenly distributed blades on each rotor layer, slots formed by adjacent blades, like a honeycomb. The largest mill has 1600 slots. When the rotor rotates at a high speed, the airflow forms a turbulent flow in the slot. The mill liner is usually corrugated or multi-toothed, which promotes the formation of turbulent flow, and also enhances the grinding force, shearing force and impact force.

Product parameters

Model MRD-1 MRD-2 MRD-3 MRD-4 MRD-5 MRD-6
Grinding Motor Power(kW) 45 90 160 200 315 450
Classifying Motor Power (kW) 5.5 7.5 15 22 37 55
Blade(layer) 3-6 4-7 5-8 5-8 5-8 6-10
Air volume(m3/h) 4,500 7,000 12,000 16,000 24000 36,000

Note: The production capacity is closely related to the particle size, specific gravity, hardness, moisture and other indicators of the raw materials. The above is only for selection reference.

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