US 11,458,701 B2Granted

Device and method for pressing organic material out of waste

AssigneeAnaergia Inc.

InventorWillem Jan Oude Grotebevelsborg

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Abstract

A press for processing organic waste has two plungers. Preferably, the plungers have rectangular cross sections. The two plungers are mounted in the press such that they are perpendicular to each other and have partially overlapping stokes. The press has walls that partially enclose a pressing chamber. The pressing chamber is as wide as one plunger on one side, and as wide as the other plunger on another side. In operation, one of the two plungers is used to optionally load organic waste into the pressing chamber, to partially enclose the pressing chamber while the waste is compressed, and to eject compressed waste from the pressing chamber. The other plunger is used to compress waste in the pressing chamber whereby a pressate is produced through perforations in a wall of the pressing chamber. The other plunger may also partially enclose the pressing chamber while compressed waste is ejected.

Claims11

Dependent claims

A press, comprising:

a frame having walls that partially enclose a pressing chamber having a discharge opening and an infeed chamber connected to the pressing chamber via a feed opening;
and
first and second plungers mounted in the press such that they are perpendicular to each other and have at least partially overlapping strokes, each stroke including movement in a first direction and a second direction;
wherein the second plunger is movable through the infeed chamber such that waste in the infeed chamber is pushed through the feed opening into the pressing chamber, and is movable through the entire pressing chamber such that the waste in the pressing chamber is discharged from the pressing chamber through the discharge opening and such that the stroke of the second plunger sweeps across a face of the first plunger;
wherein the first plunger is movable into the pressing chamber such that the waste in the pressing chamber is compressed and such that the stroke of the first plunger sweeps across at least a portion of a face of the second plunger;
and
a lock associated with the frame and configured for slidably engaging a rectangular cross section of the second plunger to prevent movement of the second plunger in at least one direction.

4 more elements

A method for pressing municipal solid waste by a device comprising:

a pressing chamber and a first pressing member for compacting introduced municipal solid waste, the first pressing member movable through the pressing chamber towards an end wall of the pressing chamber;
a second pressing member that is perpendicular to the first pressing member;
a first feed opening for feeding the introduced municipal solid waste into the pressing chamber;
perforations arranged in a wall of the pressing chamber for allowing air, moisture and organic material pressed out of introduced municipal solid waste to debouch out of the pressing chamber through a surface bounding the pressing chamber;
and
a discharge opening for discharging from the pressing chamber compacted waste from which air, moisture and organic material are at least partially removed;
and
a lock configured for slidably engaging a rectangular cross section of the second pressing member;
the method comprising steps of:
feeding the introduced municipal solid waste via the first feed opening into the pressing chamber with the second pressing member;
sliding the lock relative to the second pressing member such that movement of the second pressing member is prevented in at least one direction;
compacting the introduced municipal solid waste in the pressing chamber by moving the first pressing member into the pressing chamber and sweeping across at least a portion of a face of the second pressing member;
allowing air, moisture and organic material pressed out of introduced municipal solid waste to escape from the pressing chamber via the perforations;
and
discharging compacted waste from the pressing chamber via the discharge opening by moving the second pressing member through the entire pressing chamber such that the stroke of the second pressing member sweeps across a face of the first pressing member,
wherein compacting takes place perpendicularly of the surface by the first pressing member.

13 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/684,127Filed 10 Apr 2015 · continuation in part
Priority: NL 104044213 Oct 2013
Published: US 2015/0283779 A18 Oct 2015
Granted: 4 Oct 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B30B 9/3039
Details: fluid removing means
B30B 9/06
Using press rams: co-operating with permeable casings or strainers
B30B 9/067
Co-operating with permeable casings or strainers: with a retractable abutment member closing one end of the press chamber
B30B 9/301
Details: feed means