Analysis and solution of coal jamming in bunker

This article introduces the operational principle of multi-sine screen as well as its application mechanism in transport coal system of washing coal plant,puts forward the work stability,no-blocking coal and effective could be brought into effect to boost economic and technical index of transport coal system in washing coal plant by the application of the screen.

According to the different phenomenon and cause of the coal bunker jams in the underground mine,base on the analysis on the conventional treatment method for the coal bunker jams,the paper provided the new dredge technology with the application of the dynamic high pressure principle for the coal bunker jam.