three roller grinding mill

three roller grinding mill

The three-ring medium-speed mill is a common stone equipment, which is widely used in the grinding of mineral materials in metallurgy, building materials, chemicals, mining and other fields. The processing fineness can be adjusted freely between 325 mesh and 3000 mesh. It has become an important material ultra-fine powder processing equipment and other raw material deep processing machines, which is of great significance to the development of modern high-tech industry. The three-ring medium-speed mill is the core product of the grinding production line. It is mainly used for the grinding of mineral materials such as metallurgy, building materials, chemicals, mining, etc., grinding quartz, feldspar, calcite, talc, barite, Fluorite, rare earth, marble, ceramic, aluminum bauxite, manganese ore, iron ore, copper ore, phosphate rock, iron oxide red, zircon sand, slag, water slag, cement clinker, activated carbon, dolomite, granite, pomegranate Zi Shi, iron oxide yellow, bean cake, chemical fertilizer, compound fertilizer, fly ash, bituminous coal, coking coal, lignite, Lingmei sand, chrome oxide green, gold mine, red mud, clay, kaolin, coke, coal gangue, china clay, blue crystal More than 100 kinds of Mohs hardness of stone, fluorspar, bentonite, medical stone rhyolite, pyrophyllite, shale, purple sandstone, green shale, sedimentary rock, basalt stone, gypsum, graphite, silicon carbide, etc. Various non-flammable and explosive mineral products with a humidity of 6%. The fine powder finished product size of the three-ring medium-speed mill is arbitrarily adjusted between 325-3000 mesh, and the output can reach 0.5-12 tons per hour.

Three-ring medium speed mill performance characteristics:

  • 1. Low investment costs. In the case of the same fineness, the injection is less than the airflow mill, the cost is low, and the recovery cycle is short.
  • 2, the rate of powder extraction is high. Under the same fineness and power consumption of the finished product, the output is more than 45% higher than that of the jet mill and the agitator mill.
  • 3. Low loss of wearing parts. All wearing parts are made of high-quality wear-resistant materials at home and abroad, which are longer than the wearable parts of ordinary mill equipment, and can be more than one year.
  • 4. The operation inside the grinding chamber is safe and reliable. Compared with the ordinary mill, the three-ring medium-speed mill has no rolling bearing and no screw in the grinding chamber, so there is no problem that the bearing and other seals are vulnerable, and the problem that the screw is loose and the machine is destroyed is avoided.
  • 5, the fineness of the finished product is high. The final fineness can reach d97≤5μm.
  • 6, environmental protection and no pollution. The high-efficiency pulse dust collector has no dust pollution during the operation of the whole set of equipment. It is equipped with silencer and silencer room, which reduces noise and organizes production according to national environmental protection standards. It plays an environmental protection role. The use of the muffler reduces the pollution and noise of the dust, conforms to the national environmental standards, and plays an environmentally friendly role in the surrounding environment.

Structural composition of three-ring medium speed mill


The complete configuration of the three-ring medium-speed mill includes hammer crusher, bucket elevator, storage bin, vibrating feeder, micro-grinding main machine, frequency conversion classifier, double cyclone powder collector, pulse dust removal system, high pressure fan. , air compressors, electrical control systems.

Working environment of three-ring medium speed mill

  • 1. Cleaning the equipment: After a long period of work, the mill is prone to dirt and needs to be cleaned. In the process of cleaning, high-pressure and high-temperature water guns cannot be used for washing, especially the electrical parts, but it can not be washed with water to avoid causing The situation in which the appliance is burnt out.
  • 2. Selection and replacement of oil: For the selection of fuel oil, attention should be paid to the nature of fuel oil. The commonly used fuel oil is diesel oil, but it should be noted that the use of diesel with a freezing point higher than that equivalent to the ambient temperature cannot be used. For diesel fuel that is 5 degrees lower than the ambient temperature, diesel oil such as -10#, -20#, -35# can be used. In the cleaning, the fuel system needs to be completely cleaned up. At the same time of cleaning, it is necessary to check whether the oil pump is normal and eliminate the hidden troubles. The fuel system is also cleaned up so that the fuel oil can be used to keep up with the equipment when the equipment is started. For the replacement of lubricating oil or grease, it is necessary to pay attention to the use of lubricating oil by the equipment, and decide whether it needs to be replaced according to the amount of use.
  • 3. Maintenance of parts: During the operation of the mill, the components have different temperatures depending on the work content. There is a cooling system in the equipment. When cleaning, be careful not to precipitate the mud in the water tank in the cooling system. When it is found, it needs to be removed in time, and the water temperature of the water tank should not be too high or too low. Antifreeze should be added to the water tank.