水力清砂比用手工及其他机械方法具有许多显著的优点,主要是提高了劳动生产率和改善了劳动条件,基本消灭空气中硅尘;因此,水力清砂正在日益广泛地被采用。这项工艺在国内是比较新颖的,生产实践中的经验资料和系统介绍水力清砂的文件目前还很少见,本文参考国内外有关文件,就若干主要问题整理出以下几点意见,以供参考。 Hydraulic sanding has many significant advantages over manual and other mechanical methods, primarily to improve labor productivity and improve working conditions and to substantially eliminate silica dust in the air; therefore, hydraulic sanding is increasingly being adopted. This process is relatively new in China. The experience data in production practice and the system introduction of hydraulic sand files are still rare at present. This paper refers to the relevant documents at home and abroad and sorts out the following opinions on some major issues for reference.