2013/1/21 18:21:36
Different frequencies of sound, a lot of mechanical work, and also due to the loss or bearing assembly defects and abnormal vibration, and produce noise, noise on people's health and the living environment will cause great harm, some crusher machine sometimes produce great sound, these noise how to solve it?
1, to reduce the noise of the sound source: the transformation of production technology and optional low noise equipment; improve the accuracy of the mining machinery manufacturing and assembly, in order to reduce the noise generated by the mechanical vibration and friction; reduce the pressure and flow rate of the high-voltage, high-speed airflow, or change the air nozzle shape.
2, control in the dissemination of the way: in the rational design of the overall layout; additional barriers in the way of noise propagation, or take advantage of the natural form, such as hills, slopes, woods, bushes or fear of noisy tall buildings or retrofitting structures; utilize the directivity characteristics of the sound source to control the noise;
3, the protection of the recipient: personal protection for workers, such as wearing earplugs, earmuffs and helmets and other anti-noise supplies; take workers rotation jobs, shorter working hours for workers to enter the high-noise environments; take the muffler, sound absorption and sound insulation , vibration isolation, damping, and other measures.