TWO CYLINDER PUMP OF CONSISTENT MATTERS.

摘要

Two-cylinder pump of consistent materials for the continuous lifting of a consistent material, in particular for the continuous lifting of concrete, which has two lifting cylinders (1, 2) for the lifting of material consisting of a suction pipe (3) to a transport pipe (4) and an inversion valve (5) with a pivoting shutter valve (6, 6¿) rotating to switch between the first and the second lifting cylinder (1, 2), a) presenting the valve of reversal (5) a box (8, 8¿) of a pivoting shutter valve with at least four holes (a ¿d), the first or second orifice (a, b) being connected to the first or second lift cylinder (1, 2), the third hole (c) with the suction pipe (3) and the fourth hole (d) with the transport pipe (4), b) presenting the pivoting shutter valve (6, 6¿) arranged in the case (8, 8) of the pivoting shutter valve an inlet port (RE), which flows into the third hole (c) of the housing (8, 8¿) of the pivoting shutter valve and is always connected to the suction pipe (3), as well as an outlet (RA), which is rotating between the first and the second hole (a, b) for connection with the lifting cylinder (1, 2), c) being made between the outer wall (x) of the pivoting shutter valve and the inner wall (y) a hollow space (H), which forms the pressure pipe between the lifting cylinder (1 or 2) that is being pumped, respectively, and the transport pipe (4), characterized in that d) at least one closing element (10, 14) is provided to close the suction pipe (3) and / or the first and / or the second hole (a, b) of the valve housing (8, 8¿) pivoting shutter, so that the hollow space (H) is always under lifting pressure.