Ball mill is one kind of ore beneficiation equipment, which is mainly used in ore processing operation and commonly seen in ore processing plant. It can grind small pierces of ore into very fine particles, thus preparing for subsequent processing. After being ground by ball mill, ore pulp is formed, then being selected. According to different grinding methods, ball mill can be divided into wet ball mill and dry ball mill. Also, it can be divided into overflow ball mill and grid ball mill according to different discharging methods. By adjusting rotating speed and discharging device, the concentration of ore pulp can be controlled.
1. Ball mills whose diameter is smaller than 3200mm generally adopt antifriction bearing to replace bearing bush sliding bearing, so that 10%-20% of energy can be saved.
2. Ball grinding mill whose diameter is bigger than 2700mm generally adopt low-speed transmission gear to be used in examination and installation of lining board.
3. Ball grinding mill whose diameter is smaller than 1500mm generally adopt unitary and enlarged base, thus shortening the installation time and reducing the installation requirement.
4. Ball mills whose power is lower than 400KW adopt squirrel-cage or slip-ring asynchronous motor and that whose power is higher than 400KW can adopt high pressure asynchronous motor or TDMK series of high-pressure synchronous motor.
5. Two feeder machines can be chosen from: drum type feeder machine and compound type feeder machine to satisfy different needs of working conditions.
6. The gear lubrication methods include grease lubrication, oil bath lubrication and fog lubrication.
7. The bearing lubrication method can be chosen from manual operation and power-driven grease lubrication pump, so that it can realize automatic lubrication operation.
8. There are various types of lining boards to be chosen from, and the B series of energy-saving type can save energy by 10%-20% than A series of standard type.
The Ball Mill is used to grind many kinds of mine and other materials, or to select the mine. It is widely used in building material, chemical industry, etc.
This machine is a horizontal type cylinder rotary device and outside the cylinder there is drive gear which drives the cylinder to rotate during the working process. Materials spirally and evenly go into the first cabin of the grinding machine through the feeding hollow shaft from the feeding device, and inside the first cabin, there are ladder lining boards or ripple lining board in which there are many steel balls with different specifications. The cylinder rotates and produces eccentric force to bring the steel balls to a certain height, and then the steel balls will fall down to impact and grind the materials. After being coarsely ground in the first cabin, the materials will go through the single-layer partition board and into the secondary cabin in which there are flat lining board, and in the lining board there are steel balls to further grin
|Model||Shell rotation speed
|Ð¤3200Ã—4500||18||65||â‰¤25||0.074-0.4||As per process conditions||630||137|
|Ð¤3600Ã—4500||17||90||â‰¤25||0.074-0.4||As per process conditions||850||158|
|Ð¤3600Ã—6000||17||110||â‰¤25||0.074-0.4||As per process conditions||1250||175|