CATHAY powder separator, a powerful tool for material sorting, has fine classification and stable production capacity

CATHAY powder classifier: core equipment for accurate classification and improving material quality

1. Airflow classification to achieve accurate material sorting

CATHAY powder classifier combines the classification principles of centrifugal force and airflow resistance. It generates strong centrifugal force through the high-speed rotating rotor, and introduces stable airflow to form a resistance field, so that materials of different particle sizes can be separated in the force field. After the material enters the powder classifier from the feed inlet, it is evenly dispersed by the dispersion device and enters the classification area under the airflow. Fine particles are small in mass and the airflow resistance is greater than the centrifugal force. They enter the collection area with the airflow and become finished products; coarse particles are large in mass and the centrifugal force is greater than the airflow resistance. They are thrown to the cylinder wall, slide along the wall to the coarse powder outlet, and return to the mill for re-grinding. The equipment has high classification accuracy and can accurately classify materials according to particle size (80-450 mesh). The sorting efficiency is more than 85%, and the qualified rate of finished products is increased to more than 95%, meeting the strict requirements of different industries for material fineness.

2. Multi-material adaptation, covering the classification needs of multiple industries

Cement industry: In the cement grinding system, CATHAY powder classifier can classify cement clinker, slag and other mixed materials, and accurately control the fineness of cement products (such as 45μm sieve residue ≤3%). By optimizing the angle and speed of the grading blades (500-1500r/min), it can effectively increase the specific surface area of cement, enhance cement strength, and reduce over-grinding, so that the mill output can be increased by 15%-20%, and the unit power consumption can be reduced by more than 10%.

Building materials industry: suitable for the classification of non-metallic mineral powders such as limestone powder, gypsum powder, and talcum powder. In the processing of desulfurized gypsum, gypsum powder can be classified into products of different fineness (such as 80 mesh coarse powder for building materials and 325 mesh fine powder for coatings). After classification, the product has uniform particle size and good fluidity, meeting the quality requirements of different application scenarios.

Chemical industry: For chemical raw materials such as plastic powder, rubber powder, pigment powder, etc., the equipment adopts anti-adhesion design - the inner wall of the grading area is polished and equipped with a cold air device to control the temperature (≤60℃) to prevent the material from agglomerating due to static electricity or high temperature, ensuring stable grading accuracy and a purity of more than 99% for the finished product.

Mining field: used for grading and purification of metal ore concentrate powder (such as iron powder and zinc powder). The powder selector and ball mill form a closed-circuit system, which can return the coarse-grained ore powder to the mill for re-grinding, improve the fineness and grade of the concentrate powder, provide high-quality raw materials for subsequent smelting processes, and improve the utilization rate of mineral resources.

Food and medicine: Made of food-grade stainless steel, it can grade starch, protein powder, Chinese medicine powder, etc. The inner surface of the equipment is smooth and has no dead corners, which meets GMP hygiene standards. The grading process does not pollute materials, ensuring the safety and hygiene of food and pharmaceutical products. The fineness of the graded materials is uniform, which improves the taste and efficacy of the products.

3. Performance advantages to ensure efficient and stable operation

Adjustable classification accuracy: By adjusting the rotor speed and fan air volume through frequency conversion, the classification particle size can be flexibly adjusted to meet the fineness requirements of different products. For example, in cement production, you only need to change the speed to quickly switch between 325 mesh and 400 mesh, without replacing parts, to meet the production needs of multiple varieties.

Significant energy-saving effect: Adopting high-efficiency eddy current classification technology, the air flow distribution in the classification area is uniform, the resistance loss is small, and the fan power is reduced by 20%-30% compared with the traditional powder selection machine; at the same time, the ineffective power consumption of the mill is reduced, and the comprehensive energy consumption of the entire grinding system is reduced by more than 15%, and the annual electricity bill can be saved up to hundreds of thousands of yuan (taking an annual production line of 1 million tons of cement as an example).

Stable and reliable operation: The rotor is made of high-strength alloy steel, and after dynamic balancing calibration, the vibration amplitude during operation is ≤0.05mm, and the noise is less than 85 decibels; the bearing is lubricated with thin oil, with a service life of more than 10,000 hours, the equipment has a long trouble-free operation time, and the maintenance cost is low.

Good material dispersion: Equipped with high-efficiency dispersion devices (such as counter-type dispersers and airflow dispersion nozzles), the agglomerated materials can be completely dispersed to ensure that the materials enter the classification area in a single particle state, avoid inaccurate classification due to material agglomeration, and improve the quality stability of the finished product.

4. Structural design, taking into account durability and easy maintenance

High-strength shell: It is welded with Q345 steel plates, sandblasted and rust-proofed and painted, with strong corrosion resistance and deformation resistance, and can adapt to high temperature and dusty working environments. The service life is more than 15 years. The large powder selection machine is also equipped with an inspection platform and ladder to facilitate maintenance by operators.

Wear-resistant protection treatment: Classification blades, guide blades and other easily worn parts are made of high-chromium cast iron or ceramic composite materials, which are more than 5 times more wear-resistant than ordinary steel. They can withstand continuous erosion of materials, extend replacement cycles, and reduce spare parts costs.

Excellent sealing performance: The inlet and outlet adopts a labyrinth seal + silicone seal double sealing structure to prevent dust leakage and improve the working environment; the bearing seat adopts an air seal device to prevent dust from entering the bearing and ensure the normal operation of the bearing.

Convenient intelligent control: Equipped with a PLC control system, it can monitor the classification particle size, finished product output, equipment speed and other parameters in real time, and realize parameter setting and operation status monitoring through the touch screen. The system presets classification parameter templates for a variety of materials and supports one-click call. The classification parameters of new materials can be automatically optimized and saved through trial production, reducing debugging time.

5. CATHAY brand guarantee, full-process service support

Each powder selection machine undergoes idling test, material classification test and precision calibration before leaving the factory to ensure that the performance meets the standard. Provide customized services, and adjust the dispersion device, classification blade structure and wind speed parameters according to the material characteristics (such as density, humidity, viscosity), such as adding a drying device for high-humidity materials and adding an anti-stick coating for sticky materials. The professional team provides one-stop service from equipment selection, installation and commissioning to operator training, 7×24 hours after-sales hotline response, 2-year warranty for key components, sufficient inventory of wearing parts, to ensure long-term and efficient operation of the equipment.

Choosing CATHAY powder selector can not only achieve accurate material classification effect, but also create significant economic benefits for enterprises by improving the quality of finished products and reducing energy consumption, and help optimize and upgrade production processes.

Table parameters