Copper Smelter Nolan Comprehensive Treatment Of The Furnace Fan Noise

noise is the people do not needed, it make people feel Unpleasant; disagreeable; unwelcome sound. noise not only impair normal citizens activitiesthe but also do harm to health of citizens.Roots bloweris a versatile machine, yield great Having many purposes or uses. Roots bloweris makes a tremendous noise, have found wide application in nonferrous metals smelt enterprises. is major polluter of the environment.There is great significance for studing on comprehensive treatment the noise of bloweris.In this thesis,the auther look up a lot of documents, and studing on comprehensive treatment the noise of the aerator in a nonferrous metals smelt enterprises.In cognizance of the noise formation and spectrum distinction of aerator, the thesis Proposed the best noise comprehensive treatment scheme of based on actual conditions:use pipeline style frequency conversion composite exhaust control high frequency noise in airflow noise in ducts of the aerator;use the frequency conversion composite exhaust control the high frequency spurt noise of breathe brace up and pneumatic control valve travel empty;install combinatory acoustic enclosure eliminate the mechanical noise of the centrifugal aerator;Use the damping construction to eliminate airflow noise in ducts;When the project in the copper smeltery was build up and put into use, noise arised by aerator was under effectivecontrol, noise of centrifugal aerator system dropped markedly., The greatest noise of the noise source is 93 dB(A), accord with the requisition of workers checking up for 2 hour in a workday;piercingly high frequency noise were cut down greatly;The major technological index evenly meet designing and national standards requisition.