Method of recycling waste food materials into useful byproducts
AssigneeSSDE Technologies Corporation
InventorThomas J. Peters
Life of this patent
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Abstract
Food contents are separated from ferrous metal cans for conversion into useful byproducts by lacerating the can bodies into strips of metal to expose their contents, advancing along a vibrating conveyor section through a liquid spray, followed by magnetic separation to remove the metal strips and separately collect the food contents and metal strips for recycling. In order to convert the food contents into animal feed, the contents are first dried to reduce their moisture level either by mechanical dehydration or by the addition of bulking agents and then advanced through an extruder section to convert the food contents into dry particle form.
Claims3
The method of recycling waste food materials into useful byproducts comprising the steps of:
- drying said food materials by dehydrating for a time interval necessary to reduce the moisture content to less than 25%;
- extruding said food materials in an oxygen-free atmosphere at an elevated temperature level sufficient to sterilize said food materials;
- cooling said food materials;
- and
- thereafter tumbling and drying said food materials to reduce said food materials to particle form.
Dependencies are inferred from the claim text.