System for conveying pasty material
AssigneeSeepex GmbH
InventorsSebastian Rickers, Stephan Mottyll
Life of this patent
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Abstract
A system for conveying pasty material through a conduit has an eccentric screw pump having a stator, a rotor that rotates in the stator, a housing with an intake port, and an output port connected to the conduit. A drive rotates the rotor and thereby draws the pasty material in through the intake port and expels the drawn-in material as a compressed-material strand into the conduit. A valve supplies gas pulses to the conduit at time intervals for separating the compressed-material strand into material plugs of limited length traveling through the conduit.
Claims18
A system for conveying pasty material through a conduit, the system comprising:
- an eccentric screw pump having an elastic stator, a rotor that rotates in the stator, a housing with an intake port, and an output port connected to the conduit;
- drive means for rotating the rotor and thereby drawing the pasty material in through the intake port and expelling the drawn-in material as a continuous compressed-material strand into the conduit;
- and
- means including a valve for supplying compressed-air pulses to the conduit at time intervals for separating the compressed-material strand into spaced-apart material plugs of limited length and for pushing the spaced-apart material plugs with the compressed air through the conduit.
A method of conveying pasty material through a conduit, the method comprising the steps of:
- pumping the material with an eccentric screw pump into an upstream end of the conduit to form therein a continuous compressed-material strand moving downstream;
- and
- injecting a pulse of compressed air into the conduit to subdivide the strand into a succession of spaced-apart material plugs of limited length and to push the spaced-apart material plugs with the compressed air downstream in the conduit.
A method of conveying pasty material through a conduit at least 25 m long, the method comprising the steps of:
- pumping the material with an eccentric screw pump into an upstream end of the conduit to form therein a continuous compressed-material strand moving downstream;
- and
- injecting a pulse of compressed air into the conduit at a pressure of at most 5 bar to subdivide the strand into a succession of spaced-apart material plugs of limited length that are pushed by the compressed air downstream in the conduit.
A system for conveying pasty material through a conduit at least 25 m long, the system comprising:
- an eccentric screw pump having an elastic stator, a rotor that rotates in the stator, a housing with an intake port, and an output port connected to the conduit;
- drive means for rotating the rotor and thereby drawing the pasty material in through the intake port and expelling the drawn-in material as a continuous compressed-material strand into the conduit;
- and
- means including a valve for supplying compressed-air pulses at a pressure of at most 5 bar to the conduit at time intervals for separating the compressed-material strand into spaced-apart material plugs of limited length and for pushing the spaced-apart material plugs with the compressed air through the conduit.
Dependencies are inferred from the claim text.