Objective To find out the causes and the harm extent of this serious Silica dust hazard event and discuss the prevention and control measures for small scale quartz workplace.

目的了解造成本次严重矽尘危害事件的原因及危害程度，探讨小型石英粉加工企业矽尘危害的预防和控制措施。

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The processing of silica sand including transferring, screening and dewatering, eliminating bridge-formation in the silo, weighing in precision, dust-prevention device etc. has been recommended.

本文着重介绍了石英砂原料的输送、筛洗与脱水、料仓破拱、精确称量、除尘与密封等问题。

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