1、 First of all, the tank of automatic feeding mixing tank should be maintained. After each concrete transportation and entering the cleaning tank, we should understand that the concrete is very easy to bond with the steel.
2、 It is one of the key factors that directly interfere with the quality of the mixing tank. When transporting concrete, the rotation speed ratio of the mixing cylinder should be controlled at 2 ~ 5R / min. when the transportation distance is long or the slump of concrete is large, the mixing cylinder should be moved rapidly for 5 ~ 10 circles before discharging, so that the concrete inside can be fully mixed, and the uniformity of discharging will be further improved. If there is a shortage of water in the process of concreting, the water should be mixed to the construction site for adjustment and full mixing. Although this kind of environment should be stopped, the quality of concrete can not be guaranteed. Some customers do not pay attention to control the speed ratio in the transportation process, too fast will increase the fuel consumption, too small will lead to concrete segregation. Therefore, it is necessary to strictly control the speed ratio of the mixing cylinder according to the requirements, so as to improve the quality of concrete transportation.
3、 Because of the difference of concrete strength grade, the density of concrete is also different. The density of high-strength concrete is generally large, and the same volume is not good for the car. The volume, quality and slump of the transported concrete shall meet the requirements of the vehicle operation manual, and the lubricating oil shall be added in real time.
4、 For the automatic feeding mixing tank which has been parked in the open air, before loading, the mixing cylinder should be rotated to discharge the water in the cement tank to ensure the quality of concrete.
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