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目的了解某淀粉生产项目采取除尘、隔声等防护措施技改前后的粉尘、噪声危害状况,对其技改效果进行评价。方法对项目进行职业卫生调查,对技改前后工作场所粉尘、噪声进行检测,并将检测结果对比分析。结果技改措施效果良好,粉尘合格率从19.0%上升至88.9%,噪声合格率从66.7%上升至100%,技改后粉尘浓度和噪声强度显著降低(P<0.01)。结论采取的综合除尘、降噪技改措施效果显著。
Objective To understand the status of dust and noise before and after the technological transformation of some starch production projects such as dust removal and sound insulation, and to evaluate the effect of technical renovation. Methods Occupational health survey was conducted on the project. The dust and noise in the workplace before and after the technical innovation were tested, and the test results were compared and analyzed. Results The technical improvement measures were effective. The passing rate of dust increased from 19.0% to 88.9%, and the passing rate of noise increased from 66.7% to 100%. The dust concentration and noise intensity were significantly reduced after the technical innovation (P <0.01). Conclusion The comprehensive dust removal and noise reduction measures have a significant effect.