In recent years, ultra-fine grinding mill has been continuously applied in various fields, such as the processing of non-metallic minerals, chemical raw materials, advanced ceramic raw materials, fine abrasives, etc.
And equipment such as ultrafine grinding and fine grading technology has also been developed rapidly. There are more and more manufacturers of various ultrafine grinding and fine grading equipment. The scale of the manufacturers and the quality of the equipment are different. As with fine grading equipment, there has not been a unified performance bidding document, testing specification and quality standard, resulting in different expressions of equipment performance indicators by various manufacturers.
Facing numerous ultrafine grinding equipment, how should customers choose ultrafine grinding mill equipment?
How to choose a ultrafine mill?
(1) Whether it meets the product fineness requirements;
(2) Whether the output or scale requirements are met. It mainly considers the production capacity of a single equipment, and the principle is to keep the number of equipment as small as possible under the premise of meeting the production requirements;
(3) Whether the unit energy consumption is low. The specific energy consumption (kw.h/T) is lower, the lower the unit energy consumption, the lower the production cost of the product, and the stronger the market competitiveness of the product;
(4) Whether the wear and tear of the equipment is small. On the one hand, equipment wear and tear will reduce the service life of the main parts of the equipment and the whole machine, and increase the cost. On the other hand, it will affect the product quality or product purity. When selecting equipment, the working strength, material and wear resistance of the worn parts should be compared .
(5) Whether the quality monitoring means are perfect. Perfect quality monitoring means can ensure the stability of product quality and improve the efficiency of crushing and grading operations;
(6) Whether the supporting performance of the equipment is good, and whether the process system is simple. Equipment with good matching performance and simple process should be selected as far as possible;
(7) Whether the environmental indicators are up to standard. Equipment with dust emission and noise that can meet the requirements of national environmental protection and labor, safety and hygiene standards should be selected;
(8) Whether the classification efficiency of the classification equipment is high. Equipment with high classification efficiency should be selected as much as possible;
(9) Products from manufacturers with guaranteed mechanical manufacturing and sound service systems should be selected to ensure reliable quality.
Common Ultrafine Mills
1. Raymond mill
Raymond mill is an entry-level machine for ultrafine powder grinding. Strictly speaking, Raymond mill belongs to fine powder mill, usually the fineness it can process is between 50-325 mesh. However, with the update and iteration of Raymond machine technology, the fineness of the new high-pressure Raymond mill can reach 425 mesh, which can meet the needs of some customers who have lower requirements for ultrafine powder quality.
As an entry-level model, the biggest advantage of Raymond mill is its low price. But the shortcomings are also obvious, the powder is not fine enough, and the content of ultrafine powder is low.
2. HGM Ultrafine Grinding Mill
HGM ultrafine mill is the most widely used model in the field of ultrafine powder. It can process non-metal ultrafine powder of 150-3000 mesh.
As the backbone of ultrafine powder processing, HGM ultrafine mill adopts a completely different grinding structure from other mills: multi-layer grinding rings, multi-layer grinding rollers. In this way, the purpose of grinding into powder at one time and high powder fineness is achieved.
HGM ultrafine mill is the most cost-effective model in the field of ultrafine powder grinding. In addition, there are the following advantages:
1) simple structure, easy to operate and maintain
The HGM ultra-fine mill adopts a vertical structure, the overall equipment occupies a small area, and the structure is simple, which is convenient for transportation, installation, operation and maintenance, and the equipment is complete. It only needs one step to form a production system from raw ore to finished products. The mill can meet the needs of milling production and save investment costs.
2) The finished product is delicate and the particle size is controllable
The finished product of HGM ultra-fine mill is fine and uniform, and the sieving rate can reach 99%, which is beyond the reach of other milling equipment. The fineness of the finished product is between 150-3000 mesh, which can be adjusted freely according to the needs of users to meet the diverse needs of users. demand.
3) high wear resistance, long service life
HGM ultra-fine grinding machine adopts PLC electrical automation control system, which effectively reduces the failure rate of equipment; important parts are made of high-quality steel, wearing parts are made of wear-resistant materials, the wear resistance and impact resistance of the whole machine are significantly improved, and the transmission device The closed gear box and pulley are adopted, the transmission is stable, the operation is reliable, and the service life of the equipment is effectively improved.
4) green and environmental protection, less pollution
Negative pressure full-sealed structure, less dust, low noise.
3. CLUM ultrafine vertical mill
CLUM ultrafine vertical mill is a high-end model among ultrafine mills. It is mainly aimed at industries with high requirements on powder quality.
CLUM ultra-fine vertical mill can achieve D50=2 micron, D97=4 micron. And the powder particle shape is better than HGM ultrafine mill. Especially suitable for high-end calcium carbonate production field.
With the upgrading of the industry, in the environment where the profit margin of ordinary calcium carbonate powder is getting lower and lower, more and more business owners have begun to focus on the high-end calcium carbonate powder market with higher profits. And CLUM ultra-fine vertical mill is also operating under this background.
