Feed rate controller for granulated materials

摘要

The flow of granulated materials from a supply hopper (11) to a transport tube (12) is controlled. A material feed friction tube (13) is positioned to receive material from the hopper. The friction tube receives material independent from hopper pressure and the material moves to an orifice (18). The orifice discharges material to a pickup tube (33) from the orifice. The pickup tube has a source of carrier gas sufficient to move the material for further use.