Abstract: A method for mounting a roll of protective mesh material to an underground rock drilling machine comprising at least one drilling boom. The method comprises at least the following steps: inserting a first end of a first bar from a first lateral side of the roll of protective mesh material into a center of the roll of protective mesh material, fastening the first bar directly or indirectly to the drilling boom, inserting a first end of a second bar from a second lateral side of the roll of protective mesh material opposite the first lateral side into the center of the roll of protective mesh material, fastening the second bar directly or indirectly to the drilling boom in a location that is spaced apart from the first bar, securing the roll of protective mesh material against autonomous unrolling.

Abstract: A method for mounting a roll of protective mesh material to an underground rock drilling machine comprising at least one drilling boom. The method comprises at least the following steps: inserting a first end of a first bar from a first lateral side of the roll of protective mesh material into a center of the roll of protective mesh material, fastening the first bar directly or indirectly to the drilling boom, inserting a first end of a second bar from a second lateral side of the roll of protective mesh material opposite the first lateral side into the center of the roll of protective mesh material, fastening the second bar directly or indirectly to the drilling boom in a location that is spaced apart from the first bar, securing the roll of protective mesh material against autonomous unrolling.

Abstract: The device consists of a rotor (4) which is arranged in a suction pipe (1) and rotatably supported. The rotor (4) includes a hollow jacket body (5) on the outer wall of which vanes (2, 3) are arranged. A nozzle holder (26) is guided through the end (10) of the jacket body (5) directed against the air stream, which holder bears the injection nozzle (9) and is connected at the rear end with the fuel feed line (8). The fuel jets (24, 25) coming out of the injection nozzle (9) are directed against the inner wall (20) of the jacket body (5). This forms, at the same time, the jacket surface of the core hollow space (6) which widens toward the open end (11) of the jacket body (5). At the open end (11) is a centrifuge ring (14) with a spray edge (23). The rotor (4) is set in rotation by the stream of air flowing in the direction of the arrows (30, 31), and mixes the fuel centrifuged from the spray edge (23) homogeneously with the air.