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一、概述目前,我国矿井通风采用BY、70B_2、2KDB55、2K60、KDG、KZ及GAF型矿井轴流式通风机,而以前两种较多.在运行时产生强烈的噪声,高达120dB(A)左右,严重污染环境,危害人身健康,直接影响安全生产,因此需要有效地控制这些风机的噪声,使之达到《工业企业噪声卫生标准》的规定.为此,在学习国内外先进经验的基础上,辽宁煤矿风机试验站,在BУ-16Б№18型矿井风机的噪声控制工作中,取得良好的效果.
I. Overview At present, mine ventilation adopts BY, 70B_2, 2KDB55, 2K60, KDG, KZ and GAF mine shaft axial fans, while the former two are more and produce strong noise during operation, up to 120dB (A) Therefore, it is necessary to effectively control the noise of these fans so that they meet the requirements of “Noise Standard for Industrial Enterprises Noise.” To this end, based on the study of advanced experience both at home and abroad, , Liaoning coal mine fan test station, in the BУ-16Б № 18 mine fan noise control work, and achieved good results.