B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
302/22
B65G 53/30 (2006.01)
Patent
CA 1069156
ABSTRACT OF THE DISCLOSURE Apparatus for transporting solid particles, such as frag- ments of coal or ore, from an underground excavation to a level above the ground has a liquid-containing underground vessel which receives solid particles from a conveyor or from lorries and whose lower portion is connected with the receiving ends of two parallel U-shaped pipes having discharge ends connected to the lower end of a riser. One receiving end is connected with the outlet of a high-pressure pump for clear liquid (i.e., a liquid which is free of solid particles) when the other receiving end receives a mixture of solid particles and liquid from the vessel, and vice versa. At the same time, the discharge end of the pipe which receives clear liquid communicates with the lower end of the riser to admit into the riser the (previously received) mixture of solid particles and liquid while the other discharge end communicates with the intake of a suction pump which delivers clear liquid to the vessel. The valves which control the admission of mixture or pressurized liquid into the receiving ends and the valves which control the admission of mixture into the riser and the flow of clear liquid from the discharge ends of the pipes are rinsed with water or are automatically held out of contact with solid particles to reduce wear upon their moving parts. The pumps convey clear liquid so that the wear upon their parts is also negligible. A booster, whose operation is analogous to that of the transporting apparatus, is installed in the riser to insure that the latter can convey the mixture through a great distance, e.g., onto a classify- ing conveyor which is located at or above the ground level and permits the liquid to pass therethrough but intercepts the solid particles. - 1 -
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