Solid material comminution or disintegration – Apparatus – Including means applying fluid to material
Patent
1996-11-26
1998-11-17
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
Including means applying fluid to material
241 61, 241 80, 241236, B02C 408, B02C 1814
Patent
active
058365273
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to apparatus for comminuting solid waste material such as plastic sheet material.
BACKGROUND ART
During the manufacture and forming of many products from plastic, significant amounts of plastic waste material is frequently produced. Applicant has previously invented a unique apparatus for comminuting waste material, particularly plastic sheet material, into small, rather uniform particles or pieces that can be readily recycled or disposed of in an environmentally acceptable manner. Such prior invention is the subject of the Irwin et al. U.S. Pat. No. 4,687,144, granted Aug. 18, 1987 and assigned to Irwin Research & Development, Inc.
Such prior invention was a vast improvement over various types of hammermills that had previously been used. The hammermills were quite bulky, extremely noisy, and prone to substantial damage when the mill received foreign material that it could not comminute. Although such prior Irwin et al. invention was a vast improvement and was commercially successful, particularly in view of hammermill, it was rather expensive to manufacture and sometimes noisy in operation when processing certain material. Furthermore, it was unable to satisfactory comminute rather high density plastic materials.
The objective of the present invention is to provide a vastly improved comminuting apparatus that is not only able to process significantly greater amounts of material in a given time, but is also less expensive to manufacture and quieter in operation. Furthermore the present invention provides an apparatus that is able to comminute a wider variety of solid waste products.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the invention are described below with reference to the accompanying drawings, which are briefly described below.
FIG. 1 is a plan view of a preferred embodiment of the apparatus illustrating the top exterior of the apparatus with a waste material entrance;
FIG. 2 is a front view of the apparatus illustrated in FIG. 1.
FIG. 3 is a transverse vertical cross-sectional view taken along line 3--3 in FIG. 2 illustrating the interior of the apparatus;
FIG. 4 is a longitudinal vertical cross-sectional view taken along line 4--4 in FIG. 1 illustrating the interior of the apparatus;
FIG. 5 is a series of illustration views of the waste material and the reduction of the waste material into smaller and smaller particles of the material is progressively processed and reduced to a desired particulate size;
FIG. 6 is a product flow illustrative diagram showing the flow path of the waste material through the apparatus as the material is being progressively process and reduced to the desired particulate size;
FIG. 7 is an isolated vertical cross-sectional view of a set of scissor roll rings illustrating the initial entrance of a piece of waste material between the scissor rolls;
FIG. 8 is an isolated vertical cross-sectional view similar to FIG. 7 except showing the scissor roll rings incrementally rotated to sever the piece of waste material;
FIG. 9 is a vertical cross-sectional view taken along line 9--9 in FIG. 2;
FIG. 10 is horizontal cross-sectional view taken along line 10--10 in FIG. 9; and
FIG. 11 is fragmentary top view with a portion of a top wall removed to illustrate scissor rolls emphasizing the location and spacing of scissor roll ring finger knives.
BEST MODES FOR CARRYING OUT THE INVENTION AND DISCLOSURE OF INVENTION
A preferred embodiment of this invention is illustrated in the accompanying drawings, illustrating a waste comminuting apparatus generally designated with the numeral 10 in FIGS. 1, 2 and 4 for receiving solid waste material 12 and for reducing the solid waste material progressively into smaller and smaller sizes until a desired small particulate or piece size is obtained as illustrated in FIG. 5.
It should be noted that the apparatus 10 is very compact even through the material is progressively reduced in size in several stages to a desired predetermined small size. The predetermined small piece size will g
REFERENCES:
patent: 2595117 (1952-04-01), Ahlmann
patent: 3055597 (1962-09-01), Mund
patent: 3229698 (1966-01-01), Johansson et al.
patent: 3310059 (1967-03-01), Grinzinger
patent: 3627211 (1971-12-01), Leach
patent: 4134556 (1979-01-01), Ehrlich et al.
patent: 4687144 (1987-08-01), Irwin et al.
patent: 5039020 (1991-08-01), Leuthold et al.
patent: 5141168 (1992-08-01), Pepper
Corbin Gerald M.
Irwin Jere F.
Irwin Research & Development
Rosenbaum Mark
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