Device for the pneumatic loading of shot holes and drilled holes with free-flowing explosives

摘要

The device for the pneumatic loading of shot holes and drilled holes with free-flowing explosives, which contains a pressure chamber (1) which is prepared in order to form a fluid bed of the explosive in it, and has a feed pipe (4) for conducting explosive away, which feed pipe (4) is connected at the one end to the cavity of the pressure chamber (1) and at the other end, via a closing device (6), to a loading line (7). A fluid container (8) is provided which is connected to the input of the pressure chamber (1) and to the feed pipe (4). A main distributor line (9), having a gas-flow regulator (14), connects a gas source to the chamber (1) and to the container (8). A pressure-drop regulator (16) is furthermore provided on the pipe (4). The main distributor line (9) is provided, between the input of the regulator (14) and the inputs of the container (8) and the chamber (1), with a non-return valve (15). The pressure-drop regulator (16) on the pipe (4) has a chamber (17) which is at an increased pressure and is connected to the output of the gas-flow regulator (14), and a chamber (18), which is at a reduced pressure and is connected to the loading line (7) after the closing device (6). The container (8) is connected to the feed pipe (4) via a controllable restrictor (11) between the closing device (6) and the part of the feed pipe (4) accommodated in the chamber (1), in such a manner that its connecting point ÄlacunaÜ above the fluid height level in the container ... Original abstract incomplete.