Difference Between Vertical Mill and Ultra Fine Vertical Mill

vertical mill, ultra fine vertical mill are two very similar name. Are they the same machine? The answer is No, vertical mill and ultra fine vertical mill are the different two type machine. Altough, they are common use powder making machines, what's the difference between them?



The difference between vertical mill and ultra fine vertical mill can be seen from its name. The biggest difference between the two should be the difference in the particle size of the finished product. The grain size of the finished product of the vertical mill is 22-180 um. the ultra-fine machine is divided into ultra-fine vertical mill and ultra-fine ring roller mill, and the particle size of the finished product is between 3-45 um (fineness can reach 3 μ m) Particle size of finished product: 5-45 μ m。

Vertical Mill Working Principle and Advantages

vertical mill working principle

The motor drives the grinding disc to rotate through the vertical reducer. The solid raw materials enter the center of the grinding disc through the air lock feeding device from the feeding port, are thrown to the periphery of the grinding disc under the action of the centrifugal force field, and are repeatedly crushed by the grinding roller. The crushed material overflows from the edge of the grinding disc, and the powdery material is carried by the high-speed air flow rising from the lower part of the machine. When the rising air flow and powdery material pass through the powder concentrator on the upper part of the mill, the coarse powder is separated and falls into the center of the grinding disc for regrinding under the action of the fast rotating rotor, and the fine powder is grinded from the upper part of the mill along with the air flow and collected in the dust collector, which is the product.

vertical mill advantages

Vertical mill is a sharp tool for dry grinding of tailings and slag. It has low consumption of wear-resistant materials, low operating costs, simple maintenance and high grinding efficiency. In particular, materials with water content of 20% to 30% (such as calcium carbide slag, lignite, chalk soil, etc.) to materials with water content of less than 1% (cement clinker, etc.) can be ground. Materials with humidity of less than 15% can save a dryer.

Ultra Fine Vertical Mill Working Principle and Advantages

ultra fine vertical mill working principle

The motor drives the reducer to drive the grinding disc to rotate. The materials to be ground are sent to the center of the rotating grinding disc by the air lock feeding equipment. Under the action of centrifugal force, the materials move to the periphery of the grinding disc and enter the grinding roller table. Under the pressure of the grinding roller, the material is crushed by extrusion, grinding and shearing. At the same time, the wind is uniformly jetted upward from the air ring around the grinding disc at high speed. The milled materials are blown up by the high-speed air flow at the air ring, blowing the coarser materials back to the grinding disc for regrinding. The fine powder is brought into the grading machine by the wind for grading. The qualified fine powder flows out of the mill with the air, and is collected by the dust collection equipment. The unqualified coarse powder falls back to the grinding disc under the action of the blades of the grading machine, Regrind together with the newly fed materials, so as to complete the whole grinding process.
 

ultra fine vertical mill advantages

Ultra fine vertical mill is a large-scale high-fine vertical grinding equipment developed on the basis of vertical mill, which is suitable for the development of China's non-metallic mining industry. It breaks through the bottleneck of ultra-fine powder processing and can replace imported equipment, becoming an ideal equipment for large-scale production of ultra-fine powder. Secondary classification is adopted, with fineness up to 3 μm.

Cost of Vertical Mill&Ultra Fine Vertical Mill

Because of the different production capacity, fineness and body structure, the investment amount of vertical mill and ultra fine vertical mill is not the same. Because the grinding process of ultra-fine vertical mill is more complex and the input cost of body structure is higher, we will provide you with corresponding selection plans according to your actual needs and estimated costs.

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