Quantitative coal feeder pressure weighing coal feeder sometimes appears inaccurate data in the operation process, which may be due to the inaccurate weight of pressure weighing coal feeder. It is generally due to the influence of the surrounding environment or the user's wrong operation and the usual neglect of maintenance and calibration. When this happens, it should be checked in time to avoid affecting the normal use.

First, the quantitative coal machine weighing is not accurate, we must first check the electronic belt scale conveyor is off-track phenomenon, if there is off-track will cause a great impact on the accuracy of the coal machine; In addition, it is also necessary to see whether there is adhesive material on the belt. If there is adhesive material on the electronic belt scale, it will cause the zero point change of the pressure weighing coal feeder, which has a great influence on the accuracy of the electronic belt scale.

2. Check whether there is any abnormality in the connection of the quantitative coal feeder machine, and check whether there is material stuck between the weighing frame and the longitudinal beam of the conveyor. It may be that the roller of the pressure weighing coal feeder is loose. If these do not have results, we also need to stop the maintenance of the pressure weighing coal feeder belt, in order to prevent the wear and aging of the pressure weighing coal feeder belt from slipping, running speed is not equal, affecting the weighing accuracy of the pressure weighing coal feeder.