| 煤矸石与无烟煤混合发电场所噪声与粉尘防护工程分析 |
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| 引用本文： | 杨敏,李小亮,刘明,温薇,闫雪华. 煤矸石与无烟煤混合发电场所噪声与粉尘防护工程分析[J]. 中国卫生工程学, 2011, 0(6): 441-444 |
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| 作者姓名： | 杨敏 李小亮 刘明 温薇 闫雪华 |
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| 作者单位： | 广东省职业病防治院; |
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| 摘 要： | 目的分析煤矸石混合燃料发电工作场所针对噪声和粉尘危害采取的防护工程有效性。方法采用职业卫生调查分析设置的噪声和粉尘防护工程设施,通过有害因素检测定量评估防护设施运行前后的危害程度变化,从而验证防护效果。结果减振、隔音等防护工程能使噪声强度由69.9～100.1 dB(A)降至62.0～91.7dB(A),平均降噪值16.7 dB(A);除尘、密闭等粉尘防护设施使输煤系统煤尘的呼尘和总尘浓度分别降低21.96%和49.67%,但在细碎机及下游皮带尾处未达到防护效果;加强锅炉密闭能有效控制主厂房区的矽尘,但灰库卸料口的除尘装置未能改善卸灰时的矽尘危害。结论防护工程需综合考虑工艺、危害产生途径、危害特性、操作方式等因素,采取适宜的防护形式,才能有效保护劳动者健康。
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| 关 键 词： | 煤矸石 火力发电厂 噪声 粉尘 防护工程 |
Analysis of Noise and Dust Protection Engineering in the Coal Gangue and Anthracite Hybrid Generating Workplace |
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| YANG Min,LI Xiao-liang,LIU Ming,et al.. Analysis of Noise and Dust Protection Engineering in the Coal Gangue and Anthracite Hybrid Generating Workplace[J]. Chinese Journal of Public Health Engineering, 2011, 0(6): 441-444 |
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| Authors: | YANG Min LI Xiao-liang LIU Ming et al. |
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| Affiliation: | YANG Min,LI Xiao-liang,LIU Ming,et al.Guangdong Prevention and Treatment Center for Occupational Diseases,Guangzhou Guangdong 510300,China |
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| Abstract: | Objective To analyze the effect of protection engineering for noise and dust hazards in coal gangue and anthracite hybrid generating workplace.Methods Protection engineering for noise and dust hazards were analyzed by means of field investigation.The protection effect was evaluated quantitatively by hazard monitoring before and after the engineering put into operation.Results Engineering designs of vibration reduction and noise isolation were effective.Noise intensities in the workplace decreased from 69.9-... |
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| Keywords: | Coal gangue Thermal power plant Noise Dust Protection engineering |
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