One of the most important parts of the automatic feeding mixer is the mixing tank. Its working environment is relatively bad, and the user does not pay attention to the daily maintenance, which causes some unnecessary failures and economic losses. The daily maintenance of the automatic feeding mixing tank is as follows:
1. First of all, the tank body of the automatic feeding mixing tank should be maintained. After transporting the concrete and entering the cleaning tank every time, we should know that the concrete is easier to bond with the steel.
2. The uniformity of discharge is one of the important indexes of automatic feeding mixing tank, which directly affects the construction quality. When transporting concrete, the rotation speed of mixing drum should be controlled at 2 ~ 5R / min. when the transportation interval is long and the slump of concrete is large, the mixing drum should be moved quickly for 5 ~ 10 circles before discharging, so that the concrete inside can be fully mixed, and the uniformity of discharging will be greatly improved. If water loss occurs in the process of coagulation, water should be added to the site for mediation and full mixing. Although this kind of environment should only be stopped, the quality of concrete will not be guaranteed. Some users do not pay attention to control the speed during transportation, too fast will increase fuel consumption, too small will cause concrete segregation. Therefore, the rotation speed of the mixing drum should be strictly controlled according to the requirements to improve the quality of concrete transportation.
3. The limit of concrete should not be higher than the volume of the tank, because the density of concrete is also different due to the different strength grades. High strength concrete generally has a large density, and the same volume will cause certain damage to the car if it is loaded too much. The capacity, 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 that has been parked in the open air, before loading, the mixing drum should be rotated with the discharging direction to discharge the water in the cement tank, so as to ensure the quality of concrete transportation.