Automatic feeding mixing tank is a mixing equipment that combines the functions of concrete truck and concrete mixing plant, integrates concrete loading, metering, mixing and discharging, and can realize concrete transportation and on-site concrete construction. The equipment is fast and efficient, and greatly improves the production efficiency, The automatic feeding mixing tank is suitable for concrete engineering construction in various special environments, crowded urban areas and remote areas.
Ordinary mixing tank is a special truck used to transport construction concrete; Because of its shape, it is often called snail car. Such trucks are equipped with cylindrical mixing drums to carry the mixed concrete.
The concrete transported by the concrete mixing tank can be divided into three types: wet material type, dry material type and semi dry material type. Wet materials are mostly used in China. It can transport concrete produced by mixing plant (station) or aggregate (sand, stone), cement and water mixed according to the proportion. During transportation, the wet materials are continuously mixed slowly to prevent initial setting and segregation of concrete during transportation. However, the time from production to pouring of concrete shall not exceed 1.5h to avoid concrete setting. Therefore, in the case of long-distance transportation, it is necessary to use dry material and semi dry material mixing trucks for transportation.
The dry aggregate mixer truck can directly load the dry aggregate and cement into the mixing drum of the truck according to the proportion, and mix the dry materials in the drum during transportation. When the vehicle is about to arrive at the construction site or add water at the construction site to complete the mixing of concrete.
The aggregate and cement in the concrete transported by the semi dry mixer truck are also prepared according to the proportion and contain a certain amount of water, but the water content cannot meet the pouring requirements. It is necessary to add water to mix the concrete when the vehicle is about to reach the construction site or at the construction site. The mixer truck is composed of car chassis, mixing drum, feeding and discharging device, water supply system and hydraulic transmission system.
The main function of the mixing cylinder is to store and mix concrete. It is installed in the rear half of the car frame and is mainly composed of cylinder, connecting flange, raceway and mixing blade. The external structure of the mixing drum is mostly a cone at both ends and a cylinder in the middle, which looks like an olive. The concrete storage tank is made of high-quality wear-resistant steel sheet. In order to automatically load and unload concrete, its inner wall is welded with spiral blades of special shape.