Process of transforming waste material into useful material
AssigneeBouldin Corporation
InventorDavid C. Palmer
Life of this patent
Estimating the term…
Abstract
In a process for transforming waste material into useful material, a quantity of waste material such as household garbage or municipal solid waste is provided. The waste material is pre-shredded into pre-shredded waste material. The pre-shredded waste material is processed to at least partially remove one or more selected material components, thereby providing a processed pre-shredded waste material. The processed pre-shredded waste material is then secondarily shredded into secondarily shredded waste material which is then hydrolyzed under pressure greater than ambient pressure to create an aggregate cellulose pulp.
Claims11
A process for transforming waste material into useful material, the process comprising steps of:
- (a) providing a quantity of waste material;
- (b) pre-shredding the waste material into pre-shredded waste material having a first maximum piece size;
- (c) processing the pre-shredded waste material to provide a processed pre-shredded waste material, the processing step including:
- (c)(1) removing at least a portion of any ferrous materials from the pre-shredded waste material;
- (c)(2) separating the pre-shredded waste material into a smaller piece stream and larger piece stream with a primary separator;
- (c)(3) downstream of the primary separator separating at least a portion of the larger piece stream with a 2D/3D separator into a stream of substantially two-dimensional pieces and a stream of substantially three-dimensional pieces;
- (c)(4) downstream of the 2D/3D separator, removing at least one further selected material component from the stream of substantially three-dimensional pieces;
- (d) secondarily shredding the processed pre-shredded waste material into a secondarily shredded waste material having a second maximum piece size smaller than the first maximum piece size;
- and
- (e) hydrolyzing the secondarily shredded waste material under pressure greater than ambient pressure to create an aggregate cellulose pulp.
Dependencies are inferred from the claim text.