Optimization of the structure of the chute under the raw coal sizing screen of Qinglongsi Coal Preparation Plant

The trouble with the plant is that the raw coal is high in moisture and sticky in nature causing the ＜13mm small coal to hang up on the wall of and hence block up the raw small coal chute. Based on analysis of the factors giving rise to the trouble, a series of optimization measures are adopted, such as optimization of chute structure, change of chute linings, addition of vibration motor and infrared anti-clogging monitoring device. The optimization work has led to effective elimination of blocking of the chute, yielding as a result a noticeably favorable economic result.