Apparatus for the mix-free exchange of liquids during conveyance by means of a three-chamber pipe feeder

摘要

The cold water necessary in underground mining is exchanged directly with the pit water occurring in the underground sector by means of a three-chamber pipe feeder. To guarantee the continuous exchange, shut-off members are located at the ends of the chambers. In order to make the exchange of the heated pit water with the cold water conveyed underground mix-free, separating bodies (1) are provided in the chambers (A, B, C) to prevent an intermixing of the media being exchanged, and a safety device consisting of a non-return valve (4) arranged in a bypass (3) is provided at one end of each chamber (A, B, C) (Figure 1). <IMAGE>