Injector apparatus having a constriction in a following adjoinin

Details Injector apparatus having a constriction in a following adjoinin Injector apparatus having a constriction in a following adjoinin

1982-11-04

1984-10-16

Miles, Tim

Classifying, separating, and assorting solids

Fluid suspension

Liquid

2102212, 261123, 261DIG75, B03D 124

Patent

active

044773412

ABSTRACT:
The injector apparatus is of the kind having a constriction which lies, in the flow direction, immediately before a following adjoining mixing section, in which fibrous stock suspension is mixed with air for the purpose of subjecting the suspension to flotation in a flotation tank. The mixing pipe in which the mixing section is disposed has a radial diffusor at its outlet end, and, for a greater flow rate of air, additional air intake bores are disposed therein a short distance in the flow direction after the constriction.
A favorable arrangement is achieved if the injector apparatus with the mixing pipe is arranged perpendicularly in a flotation tank, which may have the form of a reclining cylinder. In this case, the froth, like the cleaned suspension, is drawn off on one long side, i.e., a side which extends parallel to the cylinder axis; the extraction opening for the cleaned suspension being provided preferably immediately below the level of the suspension and/or the froth extraction arrangement.

REFERENCES:
patent: 1279040 (1918-09-01), Thomas
patent: 3342331 (1965-05-01), Maxwell
patent: 3640516 (1972-02-01), Willinger
patent: 3722679 (1973-03-01), Logue
patent: 4110210 (1978-08-01), Degner
patent: 4162972 (1979-07-01), Green
patent: 4179375 (1979-12-01), Smith
patent: 4198359 (1980-04-01), Todd
patent: 4255262 (1981-03-01), O'Cheskey
patent: 4267052 (1981-05-01), Chang

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