SCM Ultrafine Mill

Ultrafine mill is a special ultrafine powder production equipment,which is producd by our company with a combination of foreign advanced production technology , the device has a series of advantages, such as the structure is so strong in the production line in the relatively stable operation, With a closed system and make the device's environmental performance is better, which are to help the community to become a more popular low-cost environmentally friendly production equipment.

Product Features: Ultrafine powder, wide applications, excellent environmental effect
  • Input Size: 0-20mm
  • Capacity: 0-20mm
  • Material: Limestone, calcite, dolomite, petroleum coal, gypsum, barite, marble, talc, coal powder, etc.
  • Higher Yielding, Lower Energy Consumption

    Newly designed grinding curves of grinding roller and grinding ring further enhance the grinding efficiency of SCM Ultrafine Grinding Mill. With the same fineness and power, the production capacity is 40% higher than that of jet grinding mill and stirred grinding mill, and the yield is twice as large as that of ball grinding mill.

  • No Rolling Bearing & Screw In Grinding Chamber

    There is no rolling bearing and screw inside the chamber of SCM Ultrafine Grinding Mill, so users are free from worries about damages on bearing or its sealing parts, and there is no machine damage problem caused by loose screws.

  • Adjustable Fineness Between 325-2500meshes

    SCM Ultrafine Grinding Mill’s cage-type powder selector adopts German technologies, which effectively increases the precision of powder separation. In addition, multi-head cage-type powder selector can be configured according to the users' requirements on yield, fineness and sieving rate.


Structure of Ultrafine mill

Superfine grinding is mainly made up of grinding roll and millstone. It is the two important component of the mill, and its abrasion resistance and toughness are quite good. As we all know, two of the mills now use electricity as the power source, and the motor drives the reducer to drive the mill system to work.

Ultrafine Mill Structure

Closed circuit grinding technology of Ultrafine Mill

The grinding process is divided into two kinds of closed circuit and open circuit. It has been proved by practice that the advantage of open circuit grinding system is that the process is simple and the material is finished after grinding. However, it should be noted that the material in the mill flow rate is slow, long residence time, it is likely to cause excessive grinding of materials, the particle size of the finished product is unfavorable.

Therefore, we advocate and promote the use of closed-circuit grinding system, by adding ultra-fine grinding powder selecting equipment, timely fine powder has been milled from outside the mill, so as to effectively avoid the problems of open circuit grinding system. At the same time, the speed of the material flow in the closed circuit is accelerated, and the grinding bodies of each silo undertake the crushing or grinding tasks respectively, so the productivity of the equipment can be increased by 40%.

Improvement of structure of Ultrafine Mill

The improvement of the structure of the ultrafine mill is mainly reflected in the setting of the length of the bin in the mill, the form of the liner, the type of the compartment, the hole rate and the arrangement way. These parameters are adjusted to meet the requirements of the new cement standard Material fineness and particle size requirements. The state-of-the-art team achieves the balance of various squeezing forces in the mill by appropriately shortening the length of the coarse grinding bin and increasing the length of the fine grinding bin.

Working Principle

The material passes from the feed hollow shaft of the feeding device to the first cabin of the grinder in a spiral way, and there is a stepped lining board or a corrugated lining board in the first cabin, wherein, there are many different specifications of the steel balls. When the roller rotates, the eccentric force is generated, the steel ball reaches a certain height, and the steel ball falls down to smash the crushing material. After rough grinding in the first compartment, the material passes through a single bulkhead and enters the two compartment with the liner. The lining plate has a steel ball to further grind the material. Finally, the powder is discharged from the discharge grate to complete the grinding process.

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