Cone ball mill

Cone ball mills have high cone frequencies and amplitudes, and their environment is harsh. Some even incorporate cones, so they have higher requirements for the anti-vibration performance of ball mills. Vibration-resistant ball mills have been developed for small domestic ball mills. For large ball mills, consultation with the manufacturer is required. Vibration-resistant ball mill is a relative concept. Its service life is much shorter than that of ordinary ball mills. Because it is a special ball mill, it has a relatively high price and is difficult to repair. Sometimes it requires professional maintenance by the manufacturing unit. The cost of use is high. When designing, try to prevent the ball mill from participating in vibration.
.>The common structure of cone ball mill can generally be used on small cone ball mills. It can be installed horizontally, tilted or vertically. Currently, the most commonly used structure in China is the frequency/special ball mill used for cone mills. The following are too Large cone ball mills have lower reliability.
.>The components of the conical ball mill should meet the characteristics of large starting torque and anti-vibration. Since the conical ball mill has a large eccentric weight, it must overcome the eccentricity and frictional torque when starting. It often takes a long starting time to start. During this period, the ball mill is overloaded and generates heat, causing the protection device to disconnect, making it difficult to start the cone ball mill. At this time, a larger ball mill needs to be selected, which increases the burden on the power grid and makes it impossible for some small units to use transformers. Generally, series components can be used for small conical ball mills (less than 1000). For large and medium-sized cone ball mills, r series components can be used. For some special occasions, r series components are also available. A coupler is applied to compensate for the impact of start-up time on the ball mill. For large ball mills, there should also be an electrical control system and a series of protection systems. In order to better adjust the parameters of the cone ball mill, variable frequency speed regulation can be used to control the speed of the ball mill to adjust the crushing particle size.
.>Prevention of steel ball gradation disorder
.>Causes of steel ball gradation disorder
.>If the steel balls are not assembled in order of size during the initial assembly stage, the steel balls will be in the The inside of the mill is in a chaotic state and the material is saturated into the mill. At this time, as the material filling surface in the mill rises, the height difference of the steel balls drops and the throwing motion transitions to a cascading tumbling motion. The grading effect of the grading lining is almost lost, which accelerates the development of steel ball gradation disorder.
.>Countermeasures
.>When initially assembling steel balls, load them in order of size and run them idling for a period of time
.>Prevent oversaturated supply of materials to avoid disorder of steel ball gradation in the mill