| 摘要 |
Method for feeding in and for transporting material in a pneumatic material conveying system, which conveying system comprises at least one input point (60) for material, a material conveying pipe (100), which can be connected to an input point (60), and a material container (10, 50), in which the material to be conveyed is separated from the transporting air, and also means for achieving a partial vacuum/pressure difference and/or a transporting air flow in the conveying pipe (100) at least during the transporting of material, which means comprise at least one partial-vacuum source (30). In the method the suction side of the partial-vacuum source (30) is connected to act in the conveying pipe (100) and onwards into an input point (60) arranged in the conveying pipe, or at least into the feed-in channel (81 ) that is between the conveying pipe and an input point, in which case the input point (60), or at least the feed-in channel (81 ), intended for emptying that is closest to the material container in the conveying direction of the material empties and the material displaces into the conveying pipe (100), that the flow resistance of an input point (60), such as the flow resistance brought about by an input aperture (61), or the flow resistance brought about by a number of input points (60), such as the flow resistance of the open input apertures (61 ) of a number of input points (60), is formed to be greater than the flow resistance of the conveying pipe (100) of material in such a way that a transporting air flow is produced in the conveying piping also in the input point (60) intended for emptying, which is farthest in the opposite direction* with respect to the conveying direction of the material and/or that the suction produced by the partial-vacuum source acts in the feed-in channel of at least the farthest input point, even though between the suction side of the partial-vacuum source and the- input point intended for emptying there is at least one input point having an open input aperture in medium connection with the conveying pipe for material. |
