Noise pollution noise pollution ball mill method of governance is troubled mill manufacturers a big problem, opposite noise on workers, maintenance personnel injury and damage to the health of the environment, which we conducted in-depth exploration and analysis. The following is a summary of the content, conclusions, we see it, that we can play a supporting role in the research. Noise sources ball mill (1) noise generated in the cylinder when the cylinder rotates, Yingkou mutual impact mill, ball and the ball, the ball between the cylinder and the steel mechanical noise generated through the barrel outwardly 115dBA radiated noise levels up above the noise, wide bandwidth. (2) motor noise electromagnetic noise generated by the motor and gear machinery operation generated airflow generated by the fan noise. Noise with motor power and speed is proportional to the motor, the noise level is generally 90dBA-115dBA. Transmission machinery noise is mainly due to the interaction between the friction between the gears collide and components produced. Mill noise control method (1) damping insulation layer wrapped with insulation material Zuni mill cylinder wrapped up, thereby reducing noise barrel. This method is generally lower 5-10dBA, less than ideal. (2) acoustic cover with insulation cover the barrel portion mill closed, blocking the way to the noise of the rumor, which reduces the radiated noise barrel. This method is effective, generally noise may increase to 20dBA. But after installing acoustic enclosures, maintenance and operation work so difficult. At the same time as the motor and transmission machinery enclosed in acoustic enclosures, resulting in the ventilation equipment, cooling difficulties, inspection, maintenance work is also very inconvenient. (3) rubber liner instead of manganese steel liner cylinder liner was changed from the original manganese steel liner rubber lining, can greatly reduce the impact noise between double ball and barrel, noise reduction is 12-15dBA, the effect is obvious, but there are still problems like rubber liner life. Mill operating time to 24 hours a day for the planned maintenance basis, its planned maintenance into large, medium and small repair three categories, mill manufacturers, small repair period from February to March, the repair period 20-24 months, cement mill, general overhaul cycle 48 months. 1. Small repair items (1) ministries fastening bolts tightness check and tighten. (2) circulating oil to clear the check, ball mill, oil spoon check, oil filter tank cleaning. (3) Check the cylinder liner, and out of the discharge end plate, in the interval of board positions, sieve, sieve tube, etc. or partial replacement. (4) inlet auger dredge. (5) the gearhead oil supplement. (6) out of the hopper inspection repair. (7) lubrication system inspection, repair, and clear the passage. 2, repair items (1) including small repair projects. (2) The interior of the cylinder liner of various replacement. (3) Check the main bearing wear, scraping or replacement. (4) The pinion shaft bushing wear inspection, scraping or replacement. (5) Transmission repair or replace pinion assembly. (6) gear disintegration cleaning, component wear inspection, replace the drive gear assembly. (7) high-speed and low-speed two coupling radial displacement, tilt reset, coupling bolts, Aprons inspection and replacement. (8) meshing clearance inspection and adjustment of the transmission gear. 3, overhaul project (1) comprises small repair projects. (2) cylinder, hollow shaft cover replacement. (3) gear for correction, upside down or replaced. (4) Replace the size of the bearing bush. (5) the size of the bearing and chassis repair and replacement. (6) pinion component replacement, replace the whole gearbox. Yingkou Mill, North mine public into a wet ball from Shenyang North Mine Zhongcheng machinery Limited. Yingkou Mill, North mine public into a wet ball mill Shenyang North Mine Zhongcheng equipment Limited (sybkzc.com) (www.sybkzcjq.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or Tel picture on to obtain the latest information, contact: Yang Zhongbin.