Conveyors: fluid current – Conduit – Having fluid nozzle
Patent
1994-07-21
1997-04-22
Pike, Andrew C.
Conveyors: fluid current
Conduit
Having fluid nozzle
406 93, 406108, 406141, B65G 5352
Patent
active
056224583
ABSTRACT:
An air lift pump for wet particulates has a plurality of transport tubes and air injectors disposed in a central column for transporting particulate matter from a lower elevation to a higher elevation. The central column has a closed top and an open bottom. Each tube has a lower, intake end and first and second air injectors comprised of a housing disposed around an air injection section of the transport tube in which is mounted a first or second air jet, respectively. Each air jet may be composed of either a plurality of circular ring members or a coiled member. The ring members and the coiled member have a substantially triangular-shaped cross section wherein the base of the triangle defines the exterior surface of the air jet. The ring members and coiled member form a plurality of circular slots or a coiled slot, respectively, having substantially trapezoid-shaped cross sections. The trapezoid cross section of the slots acts as a diffuser, causing the flow of compressed air to expand and to increase velocity. The lower portion of the second air injector housing comprises a third air jet which may be composed of either circular ring members or a coiled member similar to the first and second air jets.
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DynaSand.RTM. Filter, Parkson Corporation, 1980 brochure.
Andritz Sprout-Bauer, Inc.
Pike Andrew C.
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