The saving cone Ball mill has relatively high tapered frequency and amplitude. Its working environment is relatively poor, so there is a higher requirement on the vibration resistance of the ball mill. The small vibration resistance ball mill has been produced, while the production of the large ball mill has to negotiate with the factory. Compared with common ball mill, the vibration resistance ball mill has a lower lifespan. Because it’s a special ball mill, so it has a relatively higher price and it’s not easy to maintain. Sometimes you need to go to the manufacturing unit to maintain specially, which has a higher cost. So, during designing, it’s not necessary to keep vibration as a part of ball mill. The common structure of saving cone ball mill is generally used to the small saving cone ball mill, which not only can tipsily and horizontally install, but also vertically. Currently, the largest special ball mill in domestic cities is 23kW and frequency980r/min. the common ones are below 7.5kW. The large ball mill has lower reliability.
The components of the saving cone ball mill should meet the characteristics of large starting torque and vibration resistance. Because saving cone ball mill has relatively big eccentric weight, when starting, it should overcome eccentricity and friction torque, so it often needs long start-up time to start and makes the protector disconnect due to overload fever. Thus, it gains the difficulty of starting the ball mill. At this time, it’s necessary to select larger ball mill, which increases the burden on the electric grid and makes some smaller transformer units unable to work. Generally, small saving cone ball mill (less than 11 kW) can use Y series of components; however, for large and medium saving cone ball mill can adopt YR series of components. For some special occasions, the couple is needed, which can compensate for the influence of the start-up time on the ball mill. For large ball mil, the electrical control system and a series of protection systems are necessary. In order to better adjust the parameters of the saving cone ball mill, it’s wise to adopt variable frequency speed regulation to control the rotational speed of the saving cone ball mill for the purpose of adjusting the crushing particle size.
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