| 摘要 |
Input point (1) of a pneumatic material conveying system, which input point comprises an input aperture (2) for feeding material to inside the input point from outside the input point, means (3) for opening and closing the input aperture. The input point (1) comprises a channel part (10), in the wall of which an aperture is formed for feeding material into the channel space (10") of the channel part (10) via the input aperture (2), that the means for opening and closing the input aperture (2) comprise a first shut-off means (3), which is fitted inside the channel part (10) movably between at least one first position, in which the connection for feeding in material via the input aperture (2) is closed, and at least one second position, in which the connection for feeding in material via the input aperture (2) is open, and that the input point (1) comprises a counterpart (400) supported movably with respect to the body of the input point, against which counterpart the first shut-off means (3) is adapted to settle in the first position. The invention also relates to a method and to a system. |
