Abstract: A method and apparatus for pneumatically conveying material in form of granular solids or the like includes a feeder sending the material under pressure and addition of carrier gas in a transport pipe such that its cross sectional area is only partly filled with the material. The transport pipe is subdivided by vibration compensators into several pipe sections of a length of up to several meters which are subjected to vibrations so that the wall friction between the material and the transport pipe is reduced in such a manner that at a flow pattern similar to a strand/crown flow up to a plug flow the carrier gas is charged with material to a high degree and a material layer forming at the pipe bottom is also conveyed. The pipe sections may be made of a rigid vibrating material or may be made in form of a flexible hose which is mounted on a support and either directly or indirectly subjected to vibrations.

Abstract: A process for mechanically emptying powdery substances into a container, while the filling space rotates during the filling step. The invention relates further to a device for carrying out the process. The device has a cover that can be tightly set upon the filling hole of a container and co-rotates therewith during the filling step. The cover is provided with centrally arranged filling and air outlet channels, forming an annular space with the surrounding cover. The cover is provided with means that increases the filling space volume during filling, and reduces the volume of the filling space by the additional volume after the filling process.