Apparatus and method for recycling gypsum
AssigneeInternational Material Recovery Inc.
InventorsJohn Van Strien, William Robert Colclough
Life of this patent
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AssigneeInternational Material Recovery Inc.
InventorsJohn Van Strien, William Robert Colclough
Estimating the term…
A method and apparatus for recycling gypsum board which includes grinding the raw material into chunks, crushing the material further in a rolling mill which will reduce material sizes as well as partially knock gypsum off its backing paper. Material is then screened such that only gypsum material is then deposited into a hopper prior to a mixer assembly which mixes the various sizes of recycled gypsum into a consistent mixture prior to passing such material into a roll press subsystem for densifying such material to produce material of known and uniform composition suitable for cement manufacturing. Reclaimed gypsum in this specific physical form factor may then be used in significant portions as replacement for virgin gypsum in cement manufacture. The method and apparatus are applicable to the recycling of both new and renovation gypsum-based building material.
A method for recycling gypsum, the method comprising:
An apparatus for densifying recycled gypsum, comprising:
Dependencies are inferred from the claim text.