湘钢炼钢分厂焙烧车间现有二座30米~3白云石竖窑和二座150米~3石灰竖窑,分别采用二台8-18-101N_0~8和二台9-27-1N_0~6高压离心风机送风,风机技术性能见表1。生产时,开一台白云石竖窑风机噪音就高达114分贝,四台风机同时开动时,噪音隆隆,尖锐刺耳,(两种风机的倍频程噪声频谱见图1、图 There are two 30m ~ 3 dolomite shaft kilns and two 150m ~ 3 lime shaft kilns in the roasting workshop of Xiangtan Steelmaking Plant, using two sets of 8-18-101N_0 ~ 8 and two sets of 9-27-1N_0 ~ 6 high-pressure centrifugal fan air supply, fan technical performance in Table 1. Production, open a dolomite vertical kiln fan noise as high as 114 db, four turbines at the same time start, the noise rumbling, sharp, harsh (octave two fans noise spectrum shown in Figure 1, Figure