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为采取有效的职业病防护措施提供技术依据,调研油泥砂焚烧过程中产生的职业病危害因素种类、分布、接触水平及关键控制点。通过职业卫生现场调查、职业卫生检测、职业健康监护等方法收集数据和资料。结果显示,经职业卫生现场调查及检测结果分析,工作地点空气中各种有毒物质浓度及噪声强度均低于国家职业接触限值,污染较轻,而油泥砂中泥砂含量较高,燃烧后矽尘污染严重,检测个体矽尘接触剂量值为CTWA2.58～2.62mg/m3(国家职业接触限值为0.7mg/m3);锅炉底出料口及除尘器出料区定点检测矽尘CSTEL值为6.33～14.3mg/m3,超限倍数为9.04～20.4。提示,该项目危害最大的有害因素为砂尘,关键控制点位于锅炉底出料口及除尘器出料区。
To provide technical basis for effective occupational disease prevention measures, investigate the types, distribution, exposure level and key control points of occupational hazard factors generated during the incineration of oil sands. Through occupational health field surveys, occupational health testing, occupational health monitoring and other methods to collect data and information. The results showed that the concentration and noise intensity of various toxicants in the air at work sites were lower than the national occupational exposure limits and polluted by the on-site investigation and test results of occupational health. However, the silt content in the silt was high, Dust pollution is serious. The contact dosages of the individual dusts in the test are CTWA2.58 ~ 2.62mg / m3 (the national occupational exposure limit is 0.7mg / m3); the bottom discharge port of the boiler and the outlet of the precipitator are used to detect the CSTEL value 6.33 ~ 14.3mg / m3, the limit of multiple is 9.04 ~ 20.4. Prompted that the most harmful elements of the project for the sand and dust, the key control point is located at the bottom of the boiler discharge port and precipitator discharge area.