Battery recycling
OwnerWayne C. Stevensinventor
Life of this patent
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Abstract
In a method of recycling sealed batteries, the batteries are shredded to form a shredded feedstock. The shredded feedstock is heated above ambient temperature and rolled to form a dried material. The dried material is screen separated into a coarse fraction and a powder fraction and the powder fraction is output. A system for recycling sealed cell batteries comprises an oven with a first conveyor extending into the oven. A rotatable tunnel extends within the oven from an output of the first conveyor. The tunnel has a spiral vane depending from its inner surface which extends along a length of the tunnel. A second conveyor is positioned below an output of the rotatable tunnel.
Claims20
A method of recycling sealed batteries, comprising:
- shredding said batteries to form a shredded feedstock;
- heating said shredded feedstock above ambient temperature while rolling said shredded feedstock to form a dried material;
- screen separating said dried material into a coarse fraction and a powder fraction;
- and
- outputting said powder fraction.
A method of recycling sealed batteries containing mercury, comprising:
- shredding said batteries to form a shredded feedstock;
- heating said shredded feedstock above ambient temperature and below the boiling point of mercury while rolling said shredded feedstock to evaporate a portion of said mercury from said feedstock to form a mercury reduced dried material;
- screen separating said dried material into a coarse fraction and a powder fraction;
- and
- outputting said powder fraction.
A system for recycling sealed cell batteries, comprising:
- an oven;
- a first conveyor extending into said oven;
- a rotatable tunnel with a spiral vane depending from an inner surface of said tunnel extending along a length of said tunnel, said rotatable tunnel disposed within said oven and extending from an output of said first conveyor;
- a second conveyor below an output of said rotatable tunnel.
Dependencies are inferred from the claim text.