气流搅拌是利用气体鼓泡通过液 体层，对液体产生搅拌作用，或使气泡群一密集状态上升借所谓上升 作用促进液体产生对流循环。与机械搅拌相比，仅气泡的作用对液体 进行的搅拌时比较弱的，对于几千毫帕·秒以上的高粘度液体是难于 使用的。但气流搅拌无运动部件，所以在处理腐蚀性液体，高温高压 条件下的反应液体的搅拌时比较便利的。在工业生产中，搅拌操作时从化学工业开始的，围绕食品、纤维、造纸、石油、水处理等，作为工 艺过程的一部分而被广泛应用。搅拌操作分为机械搅拌与气流搅拌。
Gas stirring is the use of gas bubbles through the liquid layer, to produce stirring effect on the liquid, or make the bubble group a dense state rise, by the so-called rising effect to promote the liquid convection circulation. Compared with mechanical stirring, the effect of bubbles on liquid stirring is weaker, and it is difficult to use for high viscosity liquid with several thousand MPa · s. However, there are no moving parts in the air flow stirring, so it is more convenient to deal with corrosive liquid and reaction liquid under high temperature and high pressure. In industrial production, mixing operation starts from the chemical industry, and is widely used as a part of the process around food, fiber, paper, oil, water treatment, etc. Mixing operation is divided into mechanical mixing and air mixing.
Do not use welding tools on branches with holes as this will damage the lining. Electric welding (gas welding) tools shall not be used for perforating branch pipe of mixer, because electric welding will damage the plastic lining of mixer, and special pipe fittings must be used for groove connection of branch pipe; Electric welding (gas welding) tools shall not be used for perforating branch pipe of mixer, because electric welding will damage the plastic lining of mixer, and special pipe fittings must be used for groove connection of branch pipe.
In order to control the rotation of the mixing drum, a wedge should be placed between the roller and the raceway; Turn off the engine and loosen a high-pressure oil pipe of the hydraulic motor. The mixing drum can rotate freely. Control the rotation of the mixing drum to turn the maintenance hole to the lower part. Then open the maintenance hole and clean up the commercial concrete in the drum. At this time, it must be noted that after the discharge of product concrete, the commercial concrete cement mixer truck shall be restored to its original state.