Agitating – Having interrelated feed and discharge means – Including means to monitor or control operation
Patent
1987-02-24
1989-05-16
Hornsby, Harvey C.
Agitating
Having interrelated feed and discharge means
Including means to monitor or control operation
366136, 366142, 366195, 366279, 366312, 366325, 366349, 210 961, 210219, 210738, B01F 716, B01F 1502, B01D 2101, C02F 152
Patent
active
048305073
ABSTRACT:
A method of and apparatus for the thickening of mud-like slurries produced during the course of industrial processes, e.g. the thickening of red muds produced during operation of the Bayer process for the production of alumina. The invention involves the step of feeding the slurry, a fluocculating agent and washing liquor to a deep thickening vessel having an underflow outlet for the thickened slurry and an overflow outlet for clarified washing liquor. The solids content of the slurry leaving the underflow outlet is increased and kept constant by the use of a stirrer having a number of generally vertical rod-like members rotated in the vessel above the underflow outlet. The stirrer enhances dewatering of the slurry and prevents undue build up of thick inactive mud which may block the outlet or cause fluctuations in the solids content of the thickened slurry.
REFERENCES:
patent: 2268475 (1941-12-01), Darby
patent: 2322719 (1943-06-01), Scott
patent: 2365293 (1944-12-01), Robinson
patent: 2413375 (1946-12-01), Pomeroy
patent: 3212672 (1965-10-01), Kromhout et al.
patent: 3414384 (1968-12-01), Goerg
patent: 3544081 (1970-12-01), Eckhardt
patent: 3650950 (1972-03-01), White
patent: 4040954 (1977-08-01), Chandler
patent: 4226714 (1980-10-01), Firness et al.
patent: 4250032 (1981-02-01), Costa
patent: 4290898 (1981-09-01), Von Hagel et al.
patent: 4302328 (1981-11-01), Van Note
patent: 4328094 (1982-05-01), Peck
patent: 4397561 (1983-08-01), Strong et al.
patent: 4603000 (1986-07-01), Casey
Bagatto Peter F.
Puxley Donald L.
Alcan International Limited
Hornsby Harvey C.
Machuga Joseph S.
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