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在目前建筑施工中,积极推广使用散装水泥的同时,袋装水泥仍占有一定比重。选用一种经挤合理、简单、耗能少的袋装水泥上料装置是很重要的问题。国内有的中外合资建筑工程项目中,使用一种意大利“ORU”生产的150型水泥上料泵(图1),应引起我们注意。此种上料泵的构造见图2。1是(?)100×800毫米水平螺旋机,螺距40毫米,空心轴悬臂支承。该机后端用一台10马力电机4驱动,2是容量250公斤的水泥受料斗,斗口装有齿形板及网格。斗及螺旋机后部配置一台小型低压大流量空气压缩机5,其输出压力3.5公斤/
In the current building construction, while actively promoting the use of bulk cement, bagged cement still occupies a certain proportion. The use of a bagged cement loading device that is reasonably compact, simple, and energy-efficient is an important issue. In some Chinese-foreign joint venture construction projects, the use of a type 150 cement feeding pump (Fig. 1) produced by the Italian “ORU” should arouse our attention. The structure of this feed pump is shown in Fig. 2. 1 is a (?)100×800 mm horizontal screw machine with a pitch of 40 mm, and the hollow shaft is cantilevered. The rear end of the aircraft is driven by a 10 horsepower electric motor 4, and 2 is a hopper with a capacity of 250 kilograms. The bucket mouth is equipped with a toothed plate and a grid. The rear of the bucket and screw machine is equipped with a small-sized low-pressure and large-flow air compressor 5 with an output pressure of 3.5 kg/