Coal slip and coal sprinkling is avoided with the use of vibrating feeder self-locking system,lift skirt plate and optimizing lead flow area.

The researches for the application of the soft hose slip cylinder in the reconstruction for the sluice gate in the temporary ship lock of Three George Project;

0 section coal bin,not only alleviates the relation problem between mining and drifting,but also reduces transportation personnel and lifts driving economic benefit.

The main affect factor of section coal bin jam is analyzed,some methods to solve and prevent the jam problems are put forward.