With the development of large-scale mining machinery trend toward large-scale the ball mill also gradually develop in the direction of large-scale grinding equipment, automation technology is increasing. But the large ball mill noise problems in the production process is very serious, the surrounding environment causing serious pollution, improper handling will also affect the useful life of equipment, it must be timely and proper treatment.
Energy-saving ball mill
Noise mill consists of two parts, one is the collision between the ball and the ball (material), the impact of noise ball and lining of the question of the impact generated; the second is the noise of the motor and transmission and other auxiliary generated. Noise ball impact noise generated noise level higher than the auxiliary 10db (A) or more, and difficult to control, so the impact of noise control technology is the key to control of the ball mill noise. Mill noise control method designed on this basis are the following.
1, sound governance
An increase in the mill structure acoustic enclosures, acoustic enclosures shield-shaped structure is the use of the ball mill noise source enclosed in a relatively small space, reducing noise to the surrounding radiation. Activities often open the door, window, cooling channels, etc. on muffler cover, then known as modular acoustic enclosures. Currently acoustic enclosures mature technology, noise reduction effect is remarkable. Rational design of acoustic enclosures have 20dB (A) noise reduction amount, is widely used.
2, replace the rubber liner manganese steel liner
Replace manganese steel liner with a rubber liner, is based on the mechanism of the ball mill noise, one of the technical measures to reduce Simplified fundamentally sound. Noise reduction effect is obvious, but the high temperature performance synthetic rubber liner and wear resistance are poor, life is short and expensive. Therefore, before the material can be improved to improve the...