目的对某高岭土加工企业粉尘治理效果进行评价,为同类企业的粉尘治理提供科学依据。方法对茂名市某高岭土加工企业开展职业卫生调查,对治理前后车间粉尘浓度进行检测与评价。结果治理前后车间粉尘浓度平均浓度由21.4 mg/m3下降至2.4 mg/m3,下降率88.8%,治理前后的粉尘浓度均值比较,差异有统计学意义(t=3.639,P<0.05)。结论该企业采取了各种措施后粉尘控制效果明显,但仍需尽量密闭尘源,防止二次扬尘。 Objective To evaluate the effect of dust control in a kaolin processing enterprise and provide a scientific basis for the dust control of similar enterprises. Methods A survey of occupational health in a kaolin processing enterprise in Maoming City was conducted to test and evaluate the dust concentration in the workshop before and after treatment. Results The average concentration of dust in the workshop before and after treatment decreased from 21.4 mg / m3 to 2.4 mg / m3, with a decrease rate of 88.8%. Before and after treatment, the average dust concentration was significantly different (t = 3.639, P <0.05). Conclusion The company has taken various measures to control dust effect obviously, but still need to close the dust source as far as possible to prevent the second dust.