Experiment and Research of JBB- Mode Ploughing and Conveying Fully- Mechanized Coal Mining Unit for Steep Inclined Seam

According to complicated geological structure of steep inclined seam in Taiping Mine and the low mining recovery rate status of the backward available C oal mining method, the strike longwall fully- mechanized coal mining technology and equipment for the steep inclined seam was researched and developed as JBB- | m ode ploughing and conveying fully- mechanized mining unit completed equipment.The mining unit was consisted of the hydraulic powered supports, electrohydraulic Co ntrol system, ploughing and conveying machine and other systems. The industrial trial results showed that the JBB- I mode fully- mechanized coal mining unit was simpl e in the structure.The ploughing and conveying beam could be loading structure during the plough in the coal cutting operation, could be applied to the powered support pushing forwards and could eliminate a scraper conveyer with the feature of the steep inclined seam. The operation performance of the mining unit was stable and the u nmannization could be realized during the mining period of the coal mining face. Thus the safety of the steep inclined coal mining face would be enhanced and the mini ng recovery rate of the coal resources could be improved.