王雪毓, 钟小欢, 丘海丽, 管有志, 香映平, 周伟, 张乃兴. 深圳市石材加工行业工作场所噪声频谱特性分析[J]. 职业卫生与应急救援, 2022, 40(1): 53-56, 123. DOI: 10.16369/j.oher.issn.1007-1326.2022.01.010
引用本文: 王雪毓, 钟小欢, 丘海丽, 管有志, 香映平, 周伟, 张乃兴. 深圳市石材加工行业工作场所噪声频谱特性分析[J]. 职业卫生与应急救援, 2022, 40(1): 53-56, 123. DOI: 10.16369/j.oher.issn.1007-1326.2022.01.010
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WANG Xueyu, ZHONG Xiaohuan, QIU Haili, GUAN Youzhi, XIANG Yingping, ZHOU Wei, ZHANG Naixing. Noise spectrum characteristics in workplaces of stone processing industry in Shenzhen[J]. Occupational Health and Emergency Rescue, 2022, 40(1): 53-56, 123. DOI: 10.16369/j.oher.issn.1007-1326.2022.01.010
Citation: WANG Xueyu, ZHONG Xiaohuan, QIU Haili, GUAN Youzhi, XIANG Yingping, ZHOU Wei, ZHANG Naixing. Noise spectrum characteristics in workplaces of stone processing industry in Shenzhen[J]. Occupational Health and Emergency Rescue, 2022, 40(1): 53-56, 123. DOI: 10.16369/j.oher.issn.1007-1326.2022.01.010
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深圳市石材加工行业工作场所噪声频谱特性分析

Noise spectrum characteristics in workplaces of stone processing industry in Shenzhen

    摘要
  • 摘要:
      目的  分析深圳市石材加工行业工作场所噪声频谱特性，为行业开展噪声治理与防控提供科学依据。
      方法  采用立意抽样法，选取38家石材加工企业进行噪声声级检测和频谱测量，运用聚类分析对不同岗位的噪声频谱特性进行分析。
      结果  石材加工行业14种工作岗位中10种岗位的等效声级平均值超过了85 dB（A），开孔岗位的场所噪声最大值可达104.4 dB（A）。聚类分析结果显示，定厚、吹吸风干和开孔岗位的噪声频谱特征相似，在中低频和高频均有较高噪声声级。倒角、仿形、抛光、桥切、切边、干磨、手扶磨和水磨操作岗位的噪声频谱特征相似，以高频噪声为主。机器磨边、绳锯和水刀切割操作岗位的噪声频谱特征相似，噪声声级较小，均低于80 dB（A）。
      结论  石材加工行业的噪声危害程度重，应依据频谱特性采取有效的工程控制措施和听力保护措施。

     

    Abstract:
      Objective  To analyze the noise spectrum characteristics in workplaces of stone processing industry in Shenzhen, and provide scientific basis for noise control and prevention.
      Methods  By using the method of judgment sampling, a total of 38 stone processing enterprises were studied, the noise intensity was measured, and the noise spectrum characteristics of different positions were analyzed by cluster analysis.
      Results  In stone processing industry, totally 14 typical operation ways (job titles) were differentiated, and the average equivalent sound pressure level of 10 out of these 14 job titles exceeds 85 dB(A), and the maximum noise level in hole-opening post was 104.4 dB(A). The results of cluster analysis showed that the noise spectrum characteristics in fixed-thickness, blowing-suction air drying and hole-opening posts were similar, and the noise intensity was higher in all (from low to high) frequency. The noise spectrum characteristics in chamfering, profiling, polishing, bridge cutting, edge cutting, dry grinding, hand grinding and wet grinding were similar, and high frequency noise was the main noise. The noise spectrum characteristics in machine edge grinding, wire-saw and water-jet cutting were similar, and the noise intensity was lower than 80 dB(A).
      Conclusions  The noise hazard in stone processing industry was serious, and effective engineering control measures and hearing protection measures should be taken according to the spectrum characteristics of noise.

     

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