How to solve the environmental problems of the ultra-fine mill

Most of the ordinary ultrafine grinders have pollution problems such as dust and noise, as well as water pollution during wet grinding. Ultra-fine grinding is a unit operation in many industrial production, and environmental protection issues should be considered in a comprehensive manner in specific working conditions. The following is a brief description of several situations:

Dust problems, in dry ultra-fine grinding, more or less dust problems, feed port, discharge port and fan seal, due to the fine particle size of the powder, it is very easy to fly out from a poorly sealed place. The solution is to try to use negative pressure system, the use of good sealing of the crushing equipment and fine classification equipment, if necessary, in the crushing workshop equipped with dust removal system to ensure clean workshop production, which is extremely important for pigments, dyes, fiber-based powders and toxic powders.

Ultra-fine grinding equipment, there is a certain amount of vibration and noise, especially for vibration mill, ball mill, noise up to 120dB, if necessary, specially set up isolation box or isolation room, isolation grinding equipment. Now has developed a number of low-noise ultra-fine grinding equipment, such as tower mills, stirred mills, etc. can be used as a priority. However, the ultra-fine grinding environment is harsh, different industry requirements are different, in the mining industry, refractory materials, coal industry and other industries, the conditions are relatively poor, while in the pharmaceutical, food and other industries will need to be clean. In any case, it is imperative to reduce noise.

Wet ultra-fine grinding, regardless of the process used, especially in the fine ceramics, powder metallurgy, inorganic non-metallic materials and other industries, the application of water, oil or alcohol can be recycled. This requires the water or oil to be filtered after dewatering (or oil), and can be recycled without polluting the raw material in the case of ensuring.

The LUM series ultra-fine vertical mill produced by our company is a new type of ultra-fine grinding equipment designed and developed based on LM vertical mill and introducing the grinding roller technology of German ultra-fine vertical mill. It can be widely used in calcite, marble, limestone, heavy calcium, talc, barite, dolomite and other non-metallic minerals ultra-fine grinding processing, is the first choice for large-scale non-metallic mineral powder plant.

Features of LUM series ultra-fine vertical mill:

Adopting the principle of material layer grinding, short residence time of materials in the mill, less repeated grinding, less iron content, high whiteness and clarity of finished products;

Specially designed grinding curve of roller sleeve and liner plate, which can grind to the required fineness (0.045-0.02mm) at one time;

Grinding rollers are not in direct contact with the grinding disc, with less wear and long life;

Grinding rollers can be turned out for maintenance, which is convenient and fast and reduces downtime loss;

Small vibration, low noise, good overall sealing, no dust overflow, clean and environmental protection, which greatly improves the environmental protection of the ultra-fine mill.

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