US 5,213,686 AGranted

Compression feeder

AssigneeKamyr, Inc.

InventorsErwin Funk, Rudy Koteles

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Abstract

Compressible material is compacted into a plug by a device including a housing, solid outer wall, and restricting adjustable portion at an outlet. A root wall is rotated about an axis and conveys the material to be compressed in a channel having solid sidewalls. Without significant extraction of liquid from the material, the material is compressed until discharged in a compacted plug form from the housing outlet. A pneumatic cylinder provides an adjustable force for effecting the compaction adjacent the housing outlet. Examples of compressible materials that may be acted upon in the practice of various industrial processes include wood chips, high consistency paper pulp (cellulose pulp), wax and fibrous waste (for making artificial fireplace logs), and mud and straw (for producing building blocks or bricks).

Claims12

Dependent claims

A device for compacting compressible cellulosic material in a mixture, comprising:

(a) a integral housing having an outer, solid without openings therethrough wall;
including a restricting adjustable portion;
(b) means defining a channel having a root wall and a pair of side walls with an open face opposite said root wall, the channel being positioned so that the open face thereof is adjacent said housing outer wall, and of the walls d aid channel being solid without openings therethrough, so that liquid may not pass therethrough;
(c) means for moving said root wall, and at least one of said side walls, with respect to said outer wall in the dimension of elongation of said channel;
(d) means for feeding a mixture of material, and liquid, to be compressed into said channel at an inlet portion of said housing;
(e) an outlet for passage of compressed material, with liquid, out of said channel and said housing adjacent said restricting adjustable portion of said housing outer wall;
and
(f) means for applying force to said restricting adjustable portion so as to control the amount of compression of the material mixture being compressed.

5 more elements

Dependencies are inferred from the claim text.