Method and apparatus for processing waste materials
First Claim
1. A method of processing waste material which contains moisture as well as heavier and lighter solid constituents and wherein said lighter constituents include fibers, comprising the steps of (A) subjecting moist waste material to a first comminuting action to thus convert said waste material into heavier particles and lighter particles including lighter fibrous particles of a first size and additional lighter particles of a larger second size;
- (B) segregating at least the major percentage of heavier particles from lighter particles;
(C) subjecting said additional lighter particles to a cuttting action to thus reduce their size to a size not exceeding said first size; and
(D) combining the lighter fibrous particles and reduced additional lighter particles and reducing the moisture content of such lighter particles.
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Accused Products
Abstract
Moist municipal waste is subjected to a preliminary comminuting action to reduce the size of solid constituents to less than 100 mm, and the larger heavy particles are thereupon segregated from lighter particles which include relatively small fibrous particles and relatively large additional lighter particles. The additional lighter particles are segregated from the relatively small fibrous particles and are subjected to a severing action to reduce their size to a size not exceeding that of the lighter fibrous particles. The fibrous particles are thereupon mixed with severed additional particles, and the mixture is dried and ozonized prior to classification into larger, medium-sized and smaller fractions. At least the larger fractions are used for the manufacture of shaped articles.
34 Citations
16 Claims
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1. A method of processing waste material which contains moisture as well as heavier and lighter solid constituents and wherein said lighter constituents include fibers, comprising the steps of (A) subjecting moist waste material to a first comminuting action to thus convert said waste material into heavier particles and lighter particles including lighter fibrous particles of a first size and additional lighter particles of a larger second size;
- (B) segregating at least the major percentage of heavier particles from lighter particles;
(C) subjecting said additional lighter particles to a cuttting action to thus reduce their size to a size not exceeding said first size; and
(D) combining the lighter fibrous particles and reduced additional lighter particles and reducing the moisture content of such lighter particles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- (B) segregating at least the major percentage of heavier particles from lighter particles;
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11. Apparatus for processing waste material which contains moisture as well as heavier and lighter solid constituents and wherein said lighter constituents contain fibers, comprising first comminuting means for subjecting moist waste material to a comminuting action and to thus convert such waste material into heavier particles and lighter particles including lighter fibrous particles of a first size and additional lighter particles of a larger second size;
- means for feeding waste material to said first comminuting means;
means for segregating at least the major percentage of heavier particles from said lighter particles;
second comminuting cutter means including means for severing said additional lighter particles to thus reduce such additional particles to a size not exceeding said first size; and
means for reducing the moisture content of said lighter fibrous particles and said comminuted additional lighter particles. - View Dependent Claims (12, 13, 14, 15, 16)
- means for feeding waste material to said first comminuting means;
Specification