Abstract: A device for conveying a mixture of substances including at least one mixture component predominantly having a viscous consistency and at least one mixture component predominantly having a solid, particle-like consistency, includes a delivery cylinder having perforations over a portion of a lateral wall thereof and configured to separate, through the perforations, at least one of the mixture components from the mixture of substances. The delivery cylinder is connected, via a pipeline provided on an outside of the perforated lateral cylinder wall, to a processing station for the separated at least one mixture component. A material feed space is connected to an inlet side of the delivery cylinder. A delivery line is connected to an outlet side of the delivery cylinder. A delivery piston is reciprocatable through the material feed space and the delivery cylinder.