Chemistry: fertilizers – Processes and products – Bacterial
Patent
1977-04-19
1978-04-04
Hart, Charles N.
Chemistry: fertilizers
Processes and products
Bacterial
71 21, 71 64D, 34 12, 34 61, 34164, 100DIG3, 159 2E, 264141, C05F 1108, C05F 300
Patent
active
040825329
ABSTRACT:
Cattle manure is mixed and batches are separately brought into the form of a coherent substantially homogeneous pulp with a moisture content between 50 and 55% by weight, by heating with exhaust gases, drying in an oven, admixing dry material, and spraying dry material with liquid manure recuperated from the waste materials. The pulp is chopped and immediately thereafter extruded to form frangible strands, sections of which are allowed to break off, without cutting, and to further break by dropping onto a conveyor. Breakage into pellets is completed, without the use of a conventional pelletizing drum involving compression of the pellets, in a vibrated fluidized bed where the pellets are superficially dried to a non-tacky state, drying being completed in further non-vibrated fluidized beds.
REFERENCES:
patent: 2163556 (1939-06-01), Glaze
patent: 2439384 (1948-04-01), Fetzer
patent: 2877599 (1959-03-01), Hebestreet
patent: 3161483 (1964-12-01), Morris
patent: 3165394 (1965-01-01), Rausinj
patent: 3225685 (1965-12-01), King et al.
patent: 3873734 (1975-03-01), Higgins
patent: 3905796 (1975-09-01), Ghelfi
patent: 3950562 (1976-04-01), Senior
Adams Bruce L.
Burns Robert E.
Hart Charles N.
Lobato Emmanuel J.
S.A.F. Societe Agricole et Fonciere S.A.
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