| 摘要 |
An arrangement for the changeover of mine or warm water and fresh or cold water in underground mining by a three chamber tube feeder with constant filling and discharge direction, which feeder is arranged between a high pressure liquid cycle, which forms on the one hand, an aboveground feeding-in of the fresh or cold water and, on the other hand, a transportation of the mining or warm water, and an underground low pressure liquid cycle, which three chamber tube feeder ensures a direct and continuous changeover, and which feeder is provided with blocking members at the end of the chambers, wherein automatic non-return valves are provided as the blocking members exclusively at a low pressure filling side allocated to the mining or warm water, and at a high pressure discharge side, allocated to the mining or warm water, of each chamber of the three chamber tube feeder, a separate externally controlled high pressure side valve being provided as the blocking member at a high pressure fresh or cold water inlet side, and at a low pressure fresh or cold water discharge side, of each chamber of the feeder.
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