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随着工业生产不断发展,噪声污染问题越来越引起人们的关切和重视。噪声对人的影响是多方面的,其主要表现为对中枢神经系统,植物神经及心血管系统的损害。由于中枢神经系统受损害而引起全身其他器官的变化,一般它使人烦噪、厌恶、心神不安。噪声会使人听力下降,并有可能引起高血压、神经衰弱,心血官系统病症等。据北京(工业噪声标准)协作组,曾对北京20个工厂万名工人健康普查和听力测试,其中筛选出单一工种(同一声级)的2818名工人进行统计分析证明耳聋的阳性率(即发病率)随噪声强度和工令的增长而增加,关系如表1。西露天矿选煤厂系世界少有的大型机械化选煤厂,选煤厂所属庞大主体厂房有三个:
With the continuous development of industrial production, the issue of noise pollution has drawn more and more attention and attention. The impact of noise on people is multifaceted, mainly manifested as damage to the central nervous system, autonomic nerve and cardiovascular system. As a result of the central nervous system damage caused by changes in other organs of the body, it is generally annoying, disgusted, uneasy. Noise will make people hearing loss, and may cause high blood pressure, neurasthenia, cardiovascular system disorders. According to the Beijing (Industrial Noise Standards) Collaborative Group, 2818 workers who screened 10,000 workers of one type (same sound level) in a survey and survey of 10,000 workers in 20 factories in Beijing conducted statistical analyzes to prove the positive rate of deafness Rate) increases with the noise intensity and work order, as shown in Table 1. Western open-pit coal preparation plant is the world’s few large-scale mechanized coal preparation plant, coal preparation plant belonging to the main body of three: