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Five Measures to Control Ball Mill Noise
The ball mill can produce strong vibration and big noise in crushing material， the noise is up to about 100 to 115 dB (A)， which brings great harm to the operation workers and the surrounding environment. How to control the noise of ball mill will be the big problem to many ball mill users.Mineral impact crusher Now I will tell you several measures to solve this problem:
First， adding the sound insulation cover. The steel structure skeleton， with the thin plates as shell， fills in super fine glass cotton or other absorption material， which will close the ball mill. Because the ball mill will produce a significant amount of heat in running， so we must pay attention to heat dissipation and maintenance and etc.
Second， the rubber lining board instead of manganese steel lining board; noise level can drop 9dB (A)， and high frequency spectrum characteristics becomes low frequency.
Third， set up the flexible layer. Lay out the heat soft rubber mat between the ball mill roller in the inner surface and the liner. In order to prevent overheating of soft rubber pad， lay out the thickness of a 15 mm 10 industrial felt in ball mill and soft rubber lining board between mat， which can make the ball mill noise reduced to the allow standard.
Fourth， making sound insulation layer in the outside wall. Bolts should be fixed in the roller on the outside， the actual sound insulation value about 12 dB (A). If the roller did treatment at both ends， roller bandage wall seams of improve sealing， sound insulation effect may also improve.
Fifth， designing isolation room; when conditions permit， will focus on the special ball mill room， ball room will be transformed into special sound insulation， the effect will be better than the acoustic hood， but attention must be paid to run the ball control， indoor heat and maintenance problems.
Ball mill and classifier are mostly connected to more than one ball mill， classifier tied， ball mill where the plant tends to be greater from the other workshop， office noise， vibration sensitive sites relatively far away， so the ideal approach is to establish sound anti-vibration operation， the workers in the mill control room for remote operation and monitoring instrumentation， with outdoor regular visits， to reduce workers' exposure to strong noise and vibration time (and to grant anti-noise ear protectors and vibration shoes， etc.).
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