In order to distinguish from the ball mill,we called the grinding machine which need to add metal media (balls or rods)as conventional grinding machine, such as ball mill and rod mill.We should select the right grinding mill according to the particle size and nature of ore and the characteristics of the grinding machine in order to get high grinding efficiency and improve the economic effect of mineral processing. Ball mill is widely used in powder-making production line including cement, silicate, new-type building material, refractory material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc.
1. add acoustic shield
The technique is to cover up the roller of Alumina Ceramic Lined Ball Mill/Ball Mill For Gold, the cover shell is made of metal. In order to achieve noise reduction effect, the inside is lined with sound-absorbing materials, noise reduction can reach 15 ~ 20dB. However, when using this method, large area is required, also there is much trouble in the maintenance and overhaul of equipment, the acoustic shield needs to be disassembled, which increases the workload of maintenance and overhaul.
2. set elastic layer at the bottom of the lining boards
The method is to eliminate the rigid connection between the liner and roller, after successful installation, noise reduction can reach more than 15dB. However, this method is not easy to handle, because the elastic layer itself is a vibration system. the impact of steel ball will change with the natural frequency of the liners, resulting in a greater amplitude. Only when vibration noise frequency is greater than the liner natural frequency will has a good effect. It would be counterproductive if the installation is not good, and the cost is very high.
3. simple dressing
This method uses blankets and other sound-absorbing materials to make curved partition plate fastened with bolts. but the bolts are not wrapped so it is convenient to repair. Because the absorption capacity of blankets and other materials for the low frequency noise is not strong, so the noise reduction of this method can only reach about 10dB, noise-isolation effect is not very satisfactory and the cost is higher than the method of adding acoustic shield. However, this method is convenient for maintenance and overhaul, and also does not affect the steel ball loading and other work.
Henan Fote Heavy Machinery Co., Ltd.is a professional ball mill manufacturer, and the main ball mill products are cement ball mill, energy-saving ball mill, and cone ball mill and so on. For the ball mill price, please telephone us or email us, we will tell you in detail timely. We warmly invite you to conduct and purchase our products. Welcome to visit and purchase.
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