Ceramic lining jet mill solves material adhesion problems

Some materials may adhere due to their special material properties during the pulverization process, resulting in blockage or agglomeration, which causes considerable trouble for the pulverization work. After long-term experience accumulation and continuous innovation and improvement, a ceramic-lined jet mill was specially introduced for material adhesion.

A flat airflow pulverizer that uses all high-hardness engineering ceramic materials to make all over-current components, is a high-hardness brittle material, elastic plastic material, agglomerated material, fibrous material, such as zircon, alumina, rutile titanium dioxide, zirconia, The ideal crushing equipment for smashing materials such as talc, kaolin, graphite, paint, pesticide, fertilizer and pollen, food raw materials. The ceramic lining jet mill not only has the advantages of the general flat jet mill, but also because the inner lining of the machine is made of high-strength wear-resistant and high-temperature engineering ceramics, it can not only adapt to high temperature superheated steam up to 400 °C. The working fluid, and no pollution to the pulverized material, is a necessary equipment for high-quality superfine pulverization; at the same time, the cost of ultra-fine pulverization of the airflow is mainly the cost of pulverizing the working fluid, and the superheated steam working medium is more than the compressed air working fluid. The cost is reduced by a quarter. In addition, the superheated steam does not generate static electricity, so it does not cause sticking. Therefore, it is suitable for crushing some materials that may stick to the wall at room temperature, such as titanium dioxide.

The ceramic lining jet mill is mainly composed of a feeding device, a crushing chamber, a discharge port, a steam distribution pipe and a nozzle. The material of the feeding nozzle and the pulverizing nozzle is made of high-strength wear-resistant and high-temperature resistant special alloy, and the nozzle structure is supersonic design; the other over-current component lining is made of high-strength wear-resistant and high-temperature engineering ceramics, wherein the venturi is fed. The ceramic ring, the outlet lining, the ceramic upper cover and the ceramic under cover are high-strength reaction-sintered silicon carbide materials; the steam distribution pipe and the main casing are made of stainless steel and polished, and the whole machine is beautiful and compact. The ceramic lining airflow pulverizer can be used together with the airflow classifier. It is based on the physical properties of the material and the purity of the finished product. The ceramic lining inside the equipment increases the wear resistance, reduces the impact of the material on the equipment, and increases the use of the equipment. Lifetime and precise control of the iron content of the material during the comminution process. Successfully solved a series of problems such as battery material adhesion, not fine, and inaccurate classification.

Working principle of ceramic lining airflow pulverizer: After the compressed air is filtered and dried, it is sprayed into the pulverizing chamber at high speed through the Laval nozzle. The animal material is repeatedly collided and rubbed at the intersection of the high-pressure airflow, and the pulverized mixture is under negative pressure. Under the action of the fan, it reaches the classification zone. Under the strong centrifugal force generated by the high-speed rotating classifier turbine, the coarse and fine materials are separated. The materials that meet the particle size requirements are collected by the grading wheel into the cyclone separator and the dust collector. The coarse particles are reduced to the crushing zone. Smash.

The ceramic-lined jet mill has the following performance advantages:

1. Suitable for dry pulverization of various materials with a Mohs hardness of 9 or less, especially suitable for pulverization of high hardness, high purity and high value-added materials.

2, the breakthrough of particle acceleration technology, greatly improve the pulverization efficiency, reduce energy consumption, small pulverization, good particle shape, narrow particle size distribution and no large particles, the product particle size D97 = 3-74 microns between any adjustment.

3. During the pulverization process, the temperature of the gas stream is lowered due to the rapid expansion of the gas flow, and is particularly suitable for the pulverization of heat sensitive, low melting point and volatile materials.

4. The materials collide with each other to crush, which is different from mechanical crushing. It relies on the impact pulverization of materials such as blades or hammers. Together with the all-round ceramic lining, the equipment wears little and the product purity is high.

5. It can be used in series with multi-stage air classifier to produce products with multiple size segments at one time.

6. The ceramic lining airflow pulverizer has compact structure, convenient disassembly and cleaning, and smooth inner wall without dead angle.

7. The whole system is fully negative pressure sealed and operated, no dust, low noise, and the production process is clean and environmentally friendly.

8. The dust collector adopts the special anti-adhesive dust collector technology of “Giant Powder Equipment”, which eliminates the problems of low negative pressure and sticky machine.