1、 First of all, the tank of automatic feeding mixing tank should be maintained. After each concrete transportation and entering the cleaning tank, it is necessary to understand that the concrete is very easy to bond with steel.
2、 The uniformity of discharging is one of the key indexes of automatic feeding mixing tank, which directly affects the construction quality. When transporting concrete, the rotating speed ratio of mixing cylinder should be controlled at 2 ~ 5R / min. when the transportation distance is long and the slump of concrete is relatively large, the mixing cylinder should be moved 5 ~ 10 circles before placing materials to make the concrete inside can be fully mixed, so that the uniformity of discharging will be further improved. If there is water shortage in the process of coagulation, water should be added to the construction site for adjustment and mixing. Although such 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 process of transportation. If it is too fast, it will increase. If the fuel consumption is too small, it will lead to concrete segregation. Therefore, the speed ratio of mixing drum should be controlled strictly according to the requirements to improve the quality of concrete transportation.
3、 The larger limit of concrete can not be higher than the larger volume of storage tank, because the strength grade of concrete is different, and the density of high-strength concrete is also different. Generally, the density of high-strength concrete is large, and the same volume is not good for vehicles. The volume, quality and slump of transported concrete shall meet the requirements of vehicle operation manual, and lubricating oil shall be added in real time.
4、 For the automatic feeding mixing tank which has been parked in the open air, the mixing drum should be rotated to discharge the water in the cement tank before loading, so as to ensure the quality of concrete transported.