罗茨鼓风机广泛应用于工矿企业,我公司使用的3台L74WD罗茨鼓风机,用于生产用煤气的加压,1995年10月投入运行,其中2号机(见图1)运行至2001年3月时,由于进行管道中结的冰块,将管道中残留的焊条头、焊渣等金属异物一起吸入罗茨鼓风机中,致使电动机电流增大,鼓风机运行声音异常而停 Roots blower is widely used in industrial and mining enterprises, three L74WD Roots blowers used by our company for the production of pressurized gas, put into operation in October 1995, of which No. 2 machine (see Figure 1) until 2001 3 Month, as a result of the pipe in the ice, the pipe will remain in the first electrode, welding slag and other metal foreign objects together into the Roots blower, resulting in increased motor current, the fan running abnormal sound stop