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对胜利油田油建一公司黄夹克车间及上海塑料制品六厂洋泾联营厂作业现场空气采样分析可发现,前者作业环境中多异氰酸酯(PAPI)平均浓度为0.09743mg/m ̄3,其中以机头区PAPI浓度较高。后者作业现场各采样点PAPI浓度相差悬殊,其中喷涂下风区及喷枪操作工人个体采样PAPI浓度在0.2749~2.3640mg/m ̄3。结果说明,前者由于采用了机械自动喷涂法,加上车间通风条件较好并实行了轮换作业制,工人接触了较低浓度的PAPI。而后者采用了现场人工直接喷涂法,反应物溅出多,加上风速等因素,空气污染大,故工人接触了较高浓度的PAPI。建议现场作业单位采取如尽量避免大风天气作业、作业工人站上风区、作业现场用挡风屏风、工人佩戴呼吸面罩等预防措施。
Sampling the oil from the Huangjack workshop of Shengli Oilfield Construction Company and the Yangjing Associated Plant of Shanghai Plastic Products Factory No. 6, the average PAPI concentration in the former operating environment was 0.09743mg / m ~ 3, of which, PAPI concentration in the head area is higher. The PAPI concentrations of sampling points at the latter site were very different. The PAPI concentrations in the downwind area and spray gun were between 0.2749 and 2.3640 mg / m ~ 3. The results showed that the former was exposed to a lower concentration of PAPI due to the use of a mechanical automatic spraying method, coupled with better ventilation in the workshop and the rotation system. The latter uses on-site manual direct spraying method, reactants splashed more, coupled with wind speed and other factors, air pollution, so workers exposed to a higher concentration of PAPI. It is suggested that on-site operating units adopt precautionary measures such as avoiding windy weather as much as possible, working workers standing on windy areas, using windscreens at work sites and wearing respirators for workers.