2.1 Perform full load operation according to the rated output. Observe and adjust the opening degree of the feed gate through the observation window, so as to reduce the backflow of lifting materials;
2.1 Operate at full load according to rated yield. By observing the window and adjusting the opening degree of the feed gate, the lifting material is less reflux;
2.1 carry out full load operation according to the rated output. Through the observation window, observe and adjust the opening degree of the feed gate to make the lifting material less backflow;