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砼工程机械化作业,离不开泵送管道的使用,实践证明机械系统的运行故障也多出现在管道上,因此管好用好输送管道,对保证整套系统稳定高效的运行,是很关键的。我们的做法,突出有以下几点。 1.泵送时必须用好管道端部的胶质钢丝软管,以增加摆动排料的面积这段管的重量加上管内料重,要改变排料方向很吃力,故有些工地在泵送时不愿使用它。实际上,使用软管,布料面积可以扩大几倍、十几倍,既省工省力,又保证泵送质量、机械化作业效率才能正常发挥。值得注意的是,在不愿使用软管的地方,往往有的想以强力改变钢管出口位置来解决排料堆积的问题,这是很危险的操作。管道的运行压力为3～5.5MPa,有时还更
砼 Engineering mechanization operations are inseparable from the use of pumping pipelines. Practice has shown that mechanical system operation failures also occur on pipelines. Therefore, it is crucial to ensure that the entire system is operated in a stable and efficient manner. Our approach highlights the following points. 1. When the pumping must use the pipe end of the colloidal steel wire hose, to increase the area of the swing discharge of this section of the tube plus the weight of the tube, it is very difficult to change the direction of the discharge, so some sites in the pumping I do not want to use it. In fact, with the use of hoses, the fabric area can be expanded several times or more than ten times, which saves labor and saves the quality of the pumping and mechanical operation. It is worth noting that in places where you do not want to use hoses, there are often situations where you want to forcefully change the position of the steel pipe to solve the problem of dumping. This is a very dangerous operation. Pipeline operating pressure is 3 ~ 5.5MPa, sometimes even more