金口岭铜矿现有两台φ2700×2100(?)湿式格子型球磨机(以下简称球磨机),连续生产中产生的噪声高达105dB(A)以上。实测1~#球磨机噪声值如表1,测点布置如图1所示。实测数据表明:125～4000HZ 频率时的噪声超过现有工业噪声标准,峰值在250～500HZ。根据我矿的情况,对球磨机噪声采用在传声途径中综合治理的方法。用长方型封闭 There are two sets of φ2700 × 2100 (?) Wet lattice ball mill (hereinafter referred to as ball mill) in Jinkouling Copper Mine, and the noise produced in continuous production is up to 105dB (A) or more. Measured 1 ~ # ball mill noise value in Table 1, the measuring point layout shown in Figure 1. Measured data show that: 125 ~ 4000HZ frequency noise than the existing industrial noise standards, the peak at 250 ~ 500HZ. According to mine conditions, the ball mill noise in the sound path approach to comprehensive management. Rectangular closed