Patent ID: 6183216
Filing Date: 2001-02-06
Classification: B65G,F16L,Y10S

Abstract:
An arrangement for long-distance conveying of thick matter, comprising:a thick matter pump (12), the input of which is adapted to be charged with the thick matter to be conveyed, the output of which is connected via a connection (26) to the thick matter input of a first pipe switching device (22),a pressure medium pump (16) which is adapted to be charged with a low-viscosity pressure medium by way of a reservoir (18), the output of which is connected via a connection (32) to the pressure medium input of said first pipe switching device (22),a single high pressure conveyor line (20),said first pipe switching device connected via said high pressure conveyor line (20) to a second pipe switching device (24), said first pipe switching device adapted to alternatingly connect said high pressure conveyor line (20) to said first pipe switching device thick matter input and to said first pipe switching device pressure medium input;said second pipe switching device (24) adapted to switching the connection of said high pressure conveyor line (20) alternatingly between two outputs (40, 44),wherein one of said second pipe switching device (24) outputs (40) is connected to a thick matter distributor (10) and the other of said outputs (44) is connected to the reservoir (18) of the pressure medium pump (16) by way of a return feed line (45), andwherein said second pipe-switching device (24) is adapted to being switched in response to a material change occurring in the incoming material flow.