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目的确定某生物质发电建设项目产生的职业病危害因素,分析其危害程度及对劳动者健康的影响,评价职业病危害防护措施及其效果,提出职业病危害的关键控制点。方法依据国家相关标准,采用检查表法、类比法、预先危险性分析法进行综合分析评价。结果对类比项目作业场所空气生产性粉尘浓度进行了现场检测,总尘测定15个作业点,范围在0.8～28.8 mg/m3,有3个作业点超标;呼尘测定8个作业点,范围在0.18～8.27 mg/m3,有3个作业点超标。该类比企业有毒作业岗位4个,检测有毒作业点39个,其测定结果均未超过国家规定的职业接触限值。该类比企业检测噪声作业点46个,测量数据184个,有6个作业点超标。该类比企业2个作业检测点工频超高压电场强度检测结果符合工作地点工频超高压电场场强的卫生限值规定。3个作业检测点超过工频超高压电场场强的卫生限值规定。关键控制点是燃料的储存、装卸和灰渣运输、汽机巡检、水处理系统、锅炉巡检岗位。结论该拟建项目只有将各项职业病防护措施落实到位,投入生产后可将存在和产生的职业病危害因素的浓度(或强度)控制在国家规定的职业接触限值范围内,从职业卫生角度分析是基本可行的。
Objective To determine the hazard factors of occupational diseases caused by a biomass power generation project, analyze the degree of harm and the impact on the health of workers, evaluate the protective measures against occupational hazards and their effects, and put forward the key control points of occupational hazards. Methods According to the relevant national standards, a comprehensive analysis and appraisal was conducted by using checklist method, analogy method and advanced risk analysis method. Results The concentration of air-producing dust in the workplace of the analog project was tested on site. Total dust was measured at 15 working points ranging from 0.8 to 28.8 mg / m3 with 3 operating points exceeding the standard. Eight working points for dust measurement were identified, ranging from 0.18 ~ 8.27 mg / m3, there are three operating points exceeded. This type of poisonous operation than 4 positions, testing toxic operation point 39, the determination of the results did not exceed the national occupational exposure limits. The analog noise detection point than the 46 operating points, 184 measured data, 6 operating points exceeded. The analogy enterprises 2 operating test point frequency UHV electric field strength test results in line with the work site frequency UHV electric field strength of the health limit requirements. 3 operating test point exceeds the frequency field of health UHV electric field regulations. Key control points are fuel storage, handling and transportation of ash, steam inspection, water treatment systems, boiler inspection positions. Conclusion Only the occupational disease protection measures can be put into place in this proposed project. After putting into production, the concentration (or intensity) of the existing and generated occupational hazards can be controlled within the limits of occupational exposure stipulated by the state. From the angle of occupational health Is basically feasible.