Three ring medium speed micro powder grinding machine is a new type of ultrafine powder grinding machine developed and developed in response to the current domestic demand direction for ultrafine powder processing and the development trend of the grinding industry. This machine adopts a graded continuous grinding method, which simultaneously grinds materials multiple times, resulting in finer particle size and higher efficiency of the finished product. It can perform ultrafine grinding on various non flammable and explosive brittle materials with a Mohs hardness of no more than 5 levels. The complete set of equipment for the three ring medium speed micro powder mill includes: crusher, bucket elevator, storage bin, electromagnetic vibration feeder, micro powder mill host, powder selection machine, diffusion double cyclone dust collector, pulse dust collector, high-pressure fan, muffler, etc. Three ring medium speed micro powder mill is a new type of ultra-fine mill, which is suitable for non flammable, explosive and brittle materials with Mohs hardness not higher than Grade 5, such as calcite, chalk, calcium carbonate, dolomite, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite, vermiculite, sepiolite, attapulgite, rectorite, diatomite, barite, gypsum, alunite, graphite, fluorite, phosphate rock, potassium ore, pumice, etc.

　　1. The design of the grinding roller is novel, and the material selectionis reasonable, making it more sturdy and reliable. It can increase the grindingpressure of the processed materials by about 15% -20%;

　　2. The replacement frequency of bearings is low, the service cycle is long,and the service life of the entire machine is extended by 3-5 times compared toother grinding machines;

　　3. High efficiency, fast operation, variable frequency speed regulation forpowder selection machine, precise control of discharge fineness;

　　4. Under the condition of consistent fineness and yield, the energyconsumption of the machine body is only 1/3 of that of the airflow mill, saving30000 yuan in fuel and electricity annually;

　　5. Equipped with a new type of high-efficiency pulse dust removal equipmentand equipped with noise reduction devices, it completely eliminates dust, noise,and other pollution, and establishes a green production workshop;

　　6. The price discount is considerable, and under the same productioncapacity and fineness, it is more than 80% cheaper than the price of the airflowmill.

　　The three ring micro powder mill mainly relies on the mutual compressionbetween the rollers and the grinding ring to complete the grinding operation.During operation, the transmission device drives the roller shaft on the plumblossom frame to rotate rapidly, and the fixed grinding ring acts on thegrinding roller. When the material is fed into the machine by the feeding
device, a shovel is installed at the front end of the roller, and the materialis continuously fed into the grinding area between the grinding roller and thegrinding ring. As the grinding roller rotates along the axis, it continuously rolls outward and opens, gradually approaching the grinding ring and pressing tightly against the grinding ring. At this time, the material mixed between the
grinding roller and the grinding ring will be crushed by compression, thus completing the grinding work of the entire material.