Apparatus and method for separating recyclable material from waste material

Patent · Tue Aug 03 00:00:00 EDT 1993

OSTI ID:6474754

Lybecker, G W; Sherrow, T P

A method is described for separating a material stream in a material handling system, the method comprising the steps of: feeding the material stream into a screw conveyor; and separating the material stream into a crushable material stream and uncrushable waste material stream while moving with respect to the screw conveyor, the separating step further including the steps of: rotating the screw conveyor about a longitudinal axis to feed the material stream along the screw conveyor from an inlet in a predetermined longitudinally extending conveying direction; passing material small enough to fit through slot means defined by a peripheral surface of the screw conveyor and a feeder plate extending longitudinally along the screw conveyor to form the recyclable material stream, while uncrushable waste material conveys along the slot means in the predetermined longitudinally extending conveying direction; obstructing passage of the recyclable material by retractable cone means supported radially outwardly from at least a portion of the screw conveyor adjacent a longitudinal end downstream from said inlet in the predetermined longitudinally extending conveying direction; and retracting the retractable cone means in response to engagement with uncrushable waste material to allow longitudinal passage of the uncrushable waste material to form the uncrushable waste material stream.

• Assignee: Engineered Systems, Inc., Fraser, MI (United States)
• Patent Number(s): US 5232168; A
• Application Number: PPN: US 7-859658
• OSTI ID: 6474754
• Resource Relation: Patent File Date: 30 Mar 1992
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CONVEYORS
DESIGN
MATERIALS HANDLING EQUIPMENT
WASTES
RECYCLING
SORTING
WASTE MANAGEMENT
EQUIPMENT
HAULAGE EQUIPMENT
MANAGEMENT
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
320604 - Energy Conservation
Consumption
& Utilization- Municipalities & Community Systems- Municipal Waste Management- (1980-)