Comparison between Ball Mill and Vertical Mill

As an industrial raw material, powder is widely used in cement industry, building materials industry, metallurgy industry, chemical industry, electric power industry, paint industry, rubber industry, plastic industry, cosmetics industry, etc. The particle size of conventional industrial powder is 1 ~ 10μm, and 0.1 ~ 1μm for fine powder, 1 ~ 100nm for ultrafine powder or nano powder. The particle size by ball mill or vertical mill equipment both can reach 1 ~ 10μm, each of which has advantages and disadvantages.

The working principle of the two is different. The grinding principle of the ball mill is that the large particles are crushed into small particles by the impact between the large steel balls, and then the small particles are ground by the relative movement between the small balls To achieve the purpose of grinding, the ball produced by the ball mill has a better sphericity and a smoother surface. The working principle of the vertical mill is to crush and grind large-grain materials directly into fine powder by the extrusion and shear between the grinding roller and the grinding disc. The powder produced by the vertical mill is in the form of flakes under the microscope, and the sphericity is relatively difference.

(Vertical Mill)

(Ball Mill)

Due to the different methods and principles of the ball mill and the vertical mill, the energy consumption of the ball mill is generally higher than that of the vertical mill, but this also has certain limitations. When the particle size of the mill is> 13 μm (about 1000 mesh), the vertical mill is used. The energy consumption of the mill is lower. When the particle size of the grinding is less than 13μm, the energy consumption of the ball mill will be lower. The main reason is that when the vertical mill is ground, the material is only rolled once by the grinding roller and the grinding disc. The medium-sized powder produced after rolling is more, the fine powder is less, and the unqualified by the separator Because the fine powder is relatively light, it is difficult to fall onto the grinding disc for secondary grinding, so the output of ultrafine powder with vertical grinding is lower and the energy consumption is higher; while the principle of the ball mill is just the opposite. The number of crushing and grinding is multiple and uncertain, and there is a certain amount of over-grinding. Therefore, the proportion of fine powder produced by the ball mill is also high, and the output is relatively high when grinding fine powder, and the energy consumption is low.

The above is the relevant introduction about the comparison between ball mill and vertical mill. If you want to know more equipment information, please contact ZK Corp. ZK Corp is a professional manufacturer of mining machinery and equipment. The products are sold at home and abroad. Warmly welcome you to visit our factory!