型砂气力输送这项先进生产技术,在全国各地已为越来越多的工厂采用,技术水平不断提高。为了互相交流,现将我厂几年来的使用情况及设备的结构介绍如下。一、概述我厂型砂气力输送是在一机部第二设计院的大力帮助下于1969年2月份安装完成并用于生产的,到现在为止,已经连续使用三年多了。我厂年产铸件四千多吨,每天型砂的耗用量在40～50吨左右,全部使用气力输送,除了开始使用的半年中发生过两次堵塞外,以后始终没有再发生过 This advanced production technology of pneumatic conveying of sand has been adopted by more and more factories in all parts of the country and the technical level has been continuously improved. In order to exchange with each other, now I plant the use of the past few years and the structure of the equipment are described below. First, an overview of our factory-type sand pneumatic conveying is in a machine department with the help of the second design institute in February 1969 installed and completed for production, until now, has been used continuously for more than three years. I plant an annual output of more than 4,000 tons of castings, sand daily consumption of about 40 to 50 tons, all using pneumatic conveying, in addition to the first half of the year there have been two blocked, the future has never happened again