Classification methods of ball mill

Ball mill as a common grinding equipment, is widely used in electric power, chemical, mining, cement and other processing sectors. At present, the popular ball mill on the market have a wide variety, diverse functions, and different prices. This article mainly introduces to you classification methodsof ball mill. 1. Classification according to the shape of the cylinder (length and diameter ratio). ? Short tube ball mill: when cylinder length L is less than 2 times of the cylinder diameter D, that is, L ≤ 2D is a short tube ball mill, which is usually a single warehouse structure, mainly used for coarse grinding operations or a mill operation, its high efficiency, you can Achieve 2-3 ball mill at the same time in series. Short tube ball mill have a wider range use. ? Medium tube ball mill: when cylinder length L = 3D, is a medium tube ball mill. ? Long tube ball mill: when cylinder length L ≥ 4D, is a long tube ball mill. It is generally divided into 2-4 cabins. 2. Classification according to the shape of the grinding media loaded into ball mill. ? The grinding media loaded into ball mill is mainly steel bars or steel balls. Such mill have a larger grinding, and the structure is light, steady speed. ? Rod mill is mainly used for grinding steel bar media, the diameter of steel rod between 50-100mm, longer milling time. Number of bins ranging rod mill is generally two to four, and there are some differences of each cartridge into the milling media. In order to ensure the final result of its grinding, cylindrical steel bar will be placed in the first warehouse, the steel ball or steel bars on the other several warehouses. ? The grinding media of gravel mill is mainly include pebbles, gravel, sand, porcelain ball and so on. Use porcelain or granite as a liner, is widely used in color cement, white cement, ceramics and other production areas. 3. Classification according to the discharge method. ? Tail discharge mill: Respectively its first and last as its inlet and outlet. When the mill is in service, the worker feeds the abrasive from the inlet end and discharges it from the other end. ? Central discharge mill: Discharge mill inlet at both ends, outlet in the middle of the mill. The staff is usually fed from both ends of the abrasive, and then discharged from the middle of the cylinder. 4. Classification according to the drive method. ? Center drive ball mill: Transmission power of such mill in the fuselage center, motor through the reducer to achieve the operation of the ball mill. In operation, hollow shaft in the center of the mill driven by the drive of the power system. ? Edge drive ball mill: The motor drives the cylinder body by driving the gear on the edge of the cylinder through the reducer. 5. Classification according to the operating characteristics. ? Wet ball mill: Feeding at the same time adding water, discharged into a certain concentration of slurry, in a closed system closing operation with hydraulic grading equipment. ? Dry ball mill: Discharge some with wind flow to out, grinder and wind classification device closed circuit, such as cement mill using gravity discharge.