Prewetting mixer

Details Prewetting mixer Prewetting mixer

1998-05-14

2000-04-04

Walker, W. L.

Agitating

Having specified feed means

Material introduced so as to cause rotary motion in mixing...

3661782, B01F 1502

Patent

active

060452552

ABSTRACT:
A prewetting apparatus for mixing dry material with a liquid before mixing. The wetting apparatus has a cylindrical upper chamber mounted above a lower mixing chamber. The lower mixing chamber has a conic surface with an outlet below. Pressurized liquid is introduced from a housing which extends circumferentially about an upper portion of the lower section. Liquid is introduced through apertures into a groove at the upper edge of the conic surface at a predetermined flow rate and pressure so as to swirl helically down the conic mixing surface to exit at the outlet. Dry particulate matter is metered through an inlet formed in the upper cylindrical portion and is dropped at a predetermined rate into the liquid swirling in the mixing section.

REFERENCES:
patent: 2224355 (1940-12-01), Moller
patent: 3782695 (1974-01-01), Sandiford
patent: 4086663 (1978-04-01), Croft
patent: 4531673 (1985-07-01), Holland et al.
patent: 4616935 (1986-10-01), Harrison et al.
patent: 4688945 (1987-08-01), Brazelton et al.
patent: 4778280 (1988-10-01), Brazelton
Ingersoll-Dresser Pumps, Cameron Hydraulic Data, pp. 2-8 -2-9, 1995.

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