Working principle

A graded impact mill utilizes hammers, blades, rods, or other components on a high-speed rotating rotor to impact the material being crushed. Through the intense impact between the material and the rotor, high-speed collisions among the rapidly flying material particles, and the shear grinding between the rotor and the stator or side walls, it achieves the purpose of ultra-fine crushing of the material.

Equipment Features

1. Applicable to the ultra-fine grinding process of soft materials with a Mohs hardness below 3.5.

2. The particle size range is finer than that of ordinary mechanical mills. The high-speed mechanical impact mill, equipped with a built-in high-efficiency turbo classifier, enables the immediate discharge of qualified fine powder after grinding, preventing over-grinding. It can produce products with a steep particle size distribution curve, and the product fineness is adjustable within the range of d97=10–74 μm.

3. The crushing chamber is equipped with an automatic residue discharge device, which can automatically remove hard-to-grind particles and impurities from the material.

4. It has the function of breaking up and dispersing agglomerated materials.

5. High air volume implies cooling during grinding, making it suitable for processing heat-sensitive materials without sedimentation issues.

6. Fully enclosed negative pressure operation, no dust pollution.

Technological process

Scope of Application

Non-metallic minerals
Typical materials include: ultra-fine grinding of hard kaolin, talc, graphite, calcite, gypsum, diatomite, wollastonite, barite, pyrophyllite, aluminum hydroxide, and other materials, as well as ultra-fine grinding and dispersion of nano-calcium carbonate, cerium oxide, and similar substances.
Heat-sensitive materials
Typical materials include: lactose, wax, resin, fat, bone meal, plants, etc.
Ultra-fine processing of Chinese herbal medicines and raw materials
Typical materials include: pollen, hawthorn, shiitake mushrooms, pearl powder, stomach medicine, nimodipine, antibiotic drugs, reishi, gallnut, fleeceflower root, andrographis, mint, houttuynia, fern root, kudzu root, isatis root, and others.

Main Technical Parameters