| 摘要 |
<p>A channel element in material conveyor piping (20), comprising a first channel portion (K1) provided with a first junction (31) and a second junction (32) for connecting the channel element to a material conveyor piping or the like; and a second channel portion (K2) connected to the first channel portion, provided with a third junction (30) for connecting the channel element to a material conveyor piping or the like. At the junction of the first channel portion (K1) and the second channel portion (K2), there is provided a shutter element (40), which is arranged to move between two positions, i.e. a first position, where the shutter element (40) closes the pathway between the first channel portion (K1) and the second channel portion (K2), and a second position, where the shutter closes the pathway from the first junction (31) of the first channel portion (K1) to the second junction (32), and where the pathway from the second channel portion (K2) to the first channel portion (K1) is open.</p> |
