| 摘要 |
Process and apparatus for pneumatic or hydraulic transport of bulk material in a conveying direction through a pipeline by means of over or underpressure, in which components are provided for monitoring the pressure prevailing at a plurality of successive points along the pipeline, providing a plurality of sources of a pure gas or liquid each at a pressure corresponding to the pressure prevailing at an associated point along the pipeline, and supplying the pure gas or liquid from each source to the point along the pipeline which succeeds, in the conveying direction, the associated point for that source, while preventing any fluid flow from the pipeline to each source.
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