一、概况上海有色合金铸造二厂的离心式除尘风机房内安装两台30KW和一台10KW离心式除尘风机.机房在二楼,进、排气管道横贯机房,直径达850mm.整个楼房系钢架结构,四周房壁仅盖一层玻璃钢瓦.机组运行时,振动、噪声严重影响周围环境.为此进行了综合治理,使整个除尘风机房的平均噪声在全工况运行条件下由原来的A声级93dB下降到A声级 I. Overview Shanghai Nonferrous Alloy Casting Plant Centrifugal Dust Fan Room to install two 30KW and a 10KW centrifugal dust blower room on the second floor, into the exhaust pipe across the engine room, the diameter of 850mm. The entire building is steel Frame structure, surrounded by walls only cover a layer of glass steel tile .Use of the unit is running, vibration and noise seriously affect the surrounding environment.To this end a comprehensive management, so that the average dust in the fan room under the conditions of the overall operating conditions from the original A sound level 93dB down to A sound level