Solid material comminution or disintegration – Processes – With classifying or separating of material
Patent
1977-06-27
1978-07-04
Custer, Jr., Granville Y.
Solid material comminution or disintegration
Processes
With classifying or separating of material
241 29, 241DIG38, B02C 2314
Patent
active
040984648
ABSTRACT:
Household or industrial refuse is first passed through a device which rips open garbage bags, breaks open cardboard boxes, and breaks up bundles. Then this refuse is passed through a magnetic separator that extracts all the ferromagnetic elements. Thereafter the refuse is subjected to a coarse comminution and passed through a sieve to eliminate particulate material. The sieved refuse is then fed to an air-classifier which separates it into heavy, medium-heavy, and light fractions. The medium-heavy fraction is more finely communited, then passed through a zig-zag air-classifier and a cyclone to recover material usable in the production of paper, which is combined with the light fraction from the air classifier for reclamation.
REFERENCES:
patent: 3357380 (1967-12-01), Siracusa
patent: 3396914 (1968-08-01), Liebman
patent: 3844491 (1974-10-01), Williams
patent: 3848813 (1974-11-01), Stanczyk et al.
patent: 3856217 (1974-12-01), Brewer
patent: 3905556 (1975-09-01), Drage
patent: 3922975 (1975-12-01), Reese
patent: 3925198 (1975-12-01), Eckhoff et al.
Hillekamp Klaus
Kindler Hubert
Niedner Peter
Custer, Jr. Granville Y.
Krauss-Maffei Aktiengesellschaft
Ross Karl F.
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