Regularly check the lubrication system and regularly add lubricant to reduce the noise caused by the friction of the gear. On the whole, there are two ways to reduce the noise of the ball mill: first, the sound transmission path; second, the source of the noise.
Which methods can reduce the noise produced by the ball mill operation? 1.Acoustic enclosure (soundproof hood) 2. Acoustic booth (soundproof room) 3.Soft soundproof curtain (soft sound insulation) 4.Replace the liner plate 5. Install elastic layer 6. Cover the sound insulation layer
The reason and control method of ball mill noise. 1. Noise source and influencing factors of ball mill: (1) the ball mill level noise is related to the diameter and speed of the ball mill as well as the nature and lumpiness of the material. (2) the noise of the ball mill is basically steady-state noise with a wide frequency band and very high sound energy of low, medium and high frequency
In order to reduce the noise of ball mill, the use of management and project control methods for comprehensive treatment, simple and practical control measures, the cost of the more provincial, which had little effect on the technical performance of the original mill, safe and reliable operation, routine maintenance, maintenance, overhaul also very convenient and made good noise reduction.
2, reducing the noise of the Ball Mill sound sources: from a sound source to reduce the noise of the ball mill method a lot of, but can be adapted to dry high temperature thermal power plant ball mill control method is: the cylinder for damping sound insulation treatment, on the inner wall of the cylinder liners and laid between the elastic buffer, using floating liner technology;
Ball mill noise control in cement grinding process Ball Mill Working Principle and Noise. Ball mill is mainly composed of ball mill rollers gears bearings transmissions and motors. It consists of a hollow shaft and a grinding head for feeding and discharging.
ball mill control method. US3783252A. The dynamically fast in response and stable control arrangement for a reversed ball mill grinding circuit which operates in accordance with the basic control algorithm that the new material feed rate to the reversed ball mill grinding circuit is controlled as a function of the net output solids flow production from the production cyclones associated with
Ball Mill Grinding Circuit The ball mill is in closed circuit with a sump and three cyclone classifiers. The ore and trim water are added to the ball mill and the outflow from the ball mill goes to a sump where additional water is added. The slurry from the ball mill is pumped out of a sump
Cement Mill Noise Level and Attenuation Report Page 8 6. References The following sources were consulted during this study: 1. Johnson, David A., A Study in Ball-Mill Noise Control, IEEE Transactions on Industry Applications, Vol. IA-9, No. 6, November/December 1973, pp. 727 734 2. Jorgensen, Soren W., Cement Grinding a comparison
Many ball mill plants produce a lot of noise in the grinding process of bal mill. So, how to control these noise? The most direct, effective, and economic measure is to reduce the sound resource. Based on the years of experience, Luoyang Dahua summarizes as below: 1. Ball mill will generates larger vibration during working process, so the
A Study in Ball-Mill Noise Control Abstract: Ball-mill noise became a matter of general concern with passage of the Walsh-Healy Act in 1969. This act is now a part of the broader safety act known as the Occupational Safety and Health Administration. Noise is one of the ``newest pollutants'' in terms of the definition set forth in the Walsh-Healy Act. Studies are currently underway to establish
Controlling ball mill noise with acoustic blankets: A case study. The Journal of the Acoustical Society of America 126, 2218 (2009 further reducing ball mill noise in the near field by as much as 10.0 dBA and producing far field noise reductions of 3.0 dBA or greater, extending as far as 35 ft from the mills and to the floor above. The model developed from the survey data shows that a
Ball mills use of engineering noise control measures to control theball mill machine crushing noise generated at the output, control noise transmission andReceiving, in order to get people to the required acoustic environment, noise control is the ball mills. Ball mill machine in the crushed material can produce strong Vibration and noise, noise up to about 100 ~ 115dB .The basic noise control
01.01.2012· Zhao Liangyun,2004. Noise and Vibration Control Technology,Chemical Industry Press.  Wu Guangfeng, 2003.Noise pollution in cement plant and the control measure,Shang dong Building materials 3,p.21.  Shen Lvyuan,2007.Noise Control of the Ball-mill-house in Cement Plant, Noise and Vibration Control2,p.115.  Qian Haiting,2008 The Noise
Keywords: Ball mills, grinding circuit, process control. I. Introduction Grinding in ball mills is an important technological process applied to reduce the size of particles which may have different nature and a wide diversity of physical, mechanical and chemical characteristics. Typical examples are the various ores, minerals, limestone, etc. The applications of ball mills are ubiquitous in
Example Ball Mill GrindingExpert ™Solution The throughput and efﬁciency of a SAG mill depends on the volumetric load: An overloaded mill has reduced coarse ore breakage, as the cascading balls and rock cannot drop far enough, reducing kinetic energy for breakage. An underloaded mill will break coarse ore well, but at the expense of added
Technique. Instead of fitting silencers, it is often possible to achieve a 10 20 dB reduction in airborne noise from a duct or opening by lining the last bend in the ductwork with acoustic...
Normally the noise control program will be started using as a basis A-weighted immission or noise exposure levels for which the standard ISO 11690-1 recommends target values and the principles of noise control planning. A more precise way is to use immission and emission values in frequency bands as follows. The desired (least annoying) octave band frequency spectrum for which to aim at the
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