我厂二台高炉鼓风机(D800—21型离心式鼓风机)在1958年建厂时施工安装,因当时没有安装消声设施,造成生产运转时噪声和振动都很大。尤其是在两台鼓风机同时运转时,影响更为严重,远远超过了岗位噪声标准,也使风机室附近的环境噪声超标。对操作人员危害较大,厂区工人对此意见很大。于是决定先治理靠近操作室的2~#鼓风 I plant two blast furnace blower (D800-21 centrifugal blower) construction in 1958 when the construction and installation, because there was no installation of muffler, resulting in production and operation of noise and vibration are great. Especially when the two blowers are operating at the same time, the impact is even more serious, which far exceeds the job noise standard and also causes the environmental noise near the blower room to exceed the standard. The greater harm to the operator, factory workers have a great opinion. So decided to manage 2 ~ # blast near the operating room