The accuracy of the material weighing in the asphalt mixing plant is related to the quality of the asphalt produced. Therefore, when there is a deviation in the weighing system, the staff of the asphalt mixing plant manufacturer must carefully check it in time to find the problem.

If there is a problem with one or more of the three sensors on a scale bucket, the deformation of the strain gauge will not reach the desired amount, and the actual weight of the material to be weighed will also be greater than the value displayed by the computer weighing. This situation can be checked by calibrating the scale with standard weights, but it should be noted that the calibration scale must be calibrated to the full scale. If the weight is limited, it must not be less than the usual weighing value.
During the weighing process, the deformation of the gravity sensor or the displacement of the scale bucket in the direction of gravity will be limited, which may cause the actual weight of the material to be greater than the value displayed by the computer weighing. The staff of the asphalt plant manufacturer should first eliminate this possibility to ensure that the deformation of the gravity sensor or the displacement of the scale bucket in the direction of gravity is not restricted and will not cause weighing deviations.
Asphalt mixing plants should use low energy consumption equipment. Asphalt production and transportation equipment with excellent technologies such as low noise, low energy consumption, and low emissions and suitable for production capacity should be selected. Using the ordinary mixing process, the peak current of the mixing host is about 90A. Using the asphalt-coated stone mixing process, the peak current of the mixing host is only about 70A. By comparison, it is found that the new process can reduce the peak current of the mixing host by about 30% and shorten the mixing cycle, thus reducing the energy consumption in the production process of the asphal plants.