The principle of small concrete mixer is to drive the variable piston pump of the hydraulic transmission system by the chassis showing the driving force, transfer the mechanical kinetic energy into the hydraulic function to the quantitative analysis motor, and then push the mixing drum to rotate according to the reducer, so as to carry out the forced mixing of concrete, so that it is not easy to set in a special time. Because of the characteristics of the work, generally based on the length of the concrete transportation distance, the construction site standards and the provisions on the different conditions of concrete quality and preparation, two different working methods are generally adopted.
1.预拌混凝土的搅拌运输。将在搅拌站搅拌好的混凝土立即装进搅拌车中运输，在小型混凝土搅拌车运输中途，搅拌筒大概以1～3r/min转速比旋转，使筒内混凝土持续搅拌，防止混凝土离析状况，以确保混凝土品质。这类方法运输混凝土的间距不适合太长，一般操纵在混凝土初凝之前，依据混凝土配制和实时路况、气温等标准可定下距离或時间。
1. Mixing and transportation of ready mixed concrete. The concrete mixed in the mixing plant will be immediately transported into the mixer truck. During the transportation of small concrete mixer truck, the mixing drum will rotate at a speed ratio of 1-3r / min to continuously mix the concrete in the drum to prevent concrete segregation and ensure the quality of concrete. This kind of method is not suitable for long distance transportation of concrete. Generally, before the initial setting of concrete, the distance or time can be determined according to the concrete preparation, real-time road conditions, air temperature and other standards.
2.混凝土拌和料的搅拌运输。一般有2种状况：颗粒料和水料搅拌运输。颗粒料灌水搅拌运输：在调料站将料石、混凝土等颗粒料按混凝土配制添加搅拌筒内，再将搅拌自来水添加车里储水箱，在中途适度的间距或時间将水喷到筒内，对混凝土开展搅拌，也可去施工工地后搅拌。水料搅拌运输：在调料站将料石石料、混凝土和水等拌和料按配制另外装进搅拌筒内，搅拌筒在运输中途以8～12r/min的转速比旋转，对拌和料开展搅拌，进行搅拌工作。
2. Mixing and transportation of concrete mixture. Generally, there are two kinds of conditions: granular material and water material mixing transportation. Granular material irrigation, mixing and transportation: in the mixing station, granular materials such as stone and concrete are added into the mixing drum according to the concrete preparation, and then the mixing tap water is added into the water storage tank in the truck, and the water is sprayed into the drum at an appropriate interval or time in the midway to carry out mixing for the concrete, or the mixing can be carried out after going to the construction site. Water material mixing and transportation: in the seasoning station, the mixing materials such as stone, concrete and water are separately put into the mixing drum according to the preparation, and the mixing drum rotates at the speed ratio of 8-12r / min in the middle of transportation to carry out mixing and mixing.
所述2种方法对比，前面一种更能增加对混凝土的运输時间或间距。第二种方法从某种意义上而言，小型混凝土搅拌车基础取代了搅拌站的功效，为使用人既节约了机器设备项目投资，又提升了生产效率。可是，在混凝土粘结性，匀称等品质上存有着难题，不象搅拌站生产制造的混凝土那般好。因此，为确保混凝土的品质，考虑当代基本建设工程施工的规定，种工作方式变成了现阶段小型混凝土搅拌车的优选工作方式。
Compared with the above two methods, the former one can increase the transportation time or spacing of concrete. In a sense, the foundation of small concrete mixer replaces the effect of mixing station, which not only saves the investment of machinery and equipment project, but also improves the production efficiency. However, there are some problems in the quality of concrete, such as cohesiveness and symmetry, which are not as good as the concrete produced by mixing station. Therefore, in order to ensure the quality of concrete, considering the provisions of contemporary infrastructure construction, the first working mode has become the preferred working mode of small concrete mixer at this stage.
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