The material enters the classification chamber from the feeding system, and the centrifugal force generated by the rotation of the rotor is used to separate the powder mixed in the gas-solid two-phase fluid according to particle size. Coarse particles sink under the action of gravity and centrifugal force, and most of them are brought into the classification chamber by the rising airflow. Particles that meet the particle size requirements enter the collection system through the gaps between the forced classification blades due to the small centrifugal force. Coarse particles in the raw material powder are thrown around the cylinder by the rotor blades and slide down along the cylinder due to the large centrifugal force. During the descent process, they are also impacted by the secondary airflow, causing the fine powder agglomerated in the coarse particles to disperse and blow back into the classification chamber. The coarse powder is discharged by the lower discharge valve under the action of gravity.

The design is reasonable, and the complete set of equipment consists of a feeding system, a centrifugal collector, a cyclone collector, a pulse collector, a fan, an air compressor, a control cabinet, etc.

1. High output, low energy consumption, and high grading efficiency.

2. Particle size concentration: The machine adopts a unique vertical impeller for grading. The stable grading technology and special sealing measures effectively prevent the leakage of coarse particles, resulting in products with no large particles, concentrated particle size, and high grading accuracy.

3. The classifier structure is reasonable: it can produce products with 1-6 particle size numbers simultaneously according to user requirements.

4. Strong applicability: It can be combined with various grinding machines (such as air flow mill, mechanical mill, ball mill, Raymond mill, vibration mill, etc.) to form closed or open circuit combination operations.

5. High degree of automation: All levels of impeller classifiers adopt electronic variable frequency stepless speed regulation, and the automatic circulation multi box dust collection process realizes electronic control, automatic dust cleaning, and improves the stability of the negative pressure of the whole machine.

1. High hardness materials: silicon carbide, various corundum, boron carbide, alumina, zirconia, garnet, zircon sand, diamond, etc.

2. Non metallic minerals: quartz, graphite, kaolin, calcium carbonate, mica, barite, mullite, vermiculite, wollastonite, talcum powder, pyrophyllite, etc.

3. Chemical industry: aluminum hydroxide, silica gel, various dyes, epoxy resin, various additives, etc.

4. Food and medicine: pollen, hawthorn, pearl powder, Ganoderma lucidum, various vegetable powders, various Chinese herbs, various health products, cosmetics, antibiotics, etc.

5. Metal materials: aluminum powder, magnesium powder, zinc powder, tin powder, copper powder, etc.

6. Other materials: ceramic materials, refractory materials, electronic materials, magnetic materials, rare earth materials, fluorescent powders, photocopying material powders, etc.

Main technical parameters of the semi colon machine：

Serial Number	project name	XY1type	XY2type	XY3type
1	No.1 classifier motor	3kw/4	5.5kw/4	7.5KW/4
2	No.2 classifier motor	3kw/2	7.5kw/2	11KW/2
3	Fan motor	15kw/2	22kw/2	37KW/2
4	total power	21kw	39kw	55.5KW
5	processing capacity	50-300KG/h	400-800KG/h	700-1200KG/h
6	External dimensions	9500×1800×3600mm	10500×3000×5000mm	11000X3000X5000mm
7	Graded raw materials	Silicon carbide, calcium carbonate, talc powder, diamond sand, white corundum, carbon black, activated carbon, etc