Apparatus for mixing dry particles with a liquid

Details Apparatus for mixing dry particles with a liquid Apparatus for mixing dry particles with a liquid

1976-01-19

1977-02-15

Coe, Philip R.

259 4R, 259 60, 259 95, 259161, B28C 506, B01F 1310

Patent

active

040079210

ABSTRACT:
A blender apparatus is disclosed which is useful for mixing dry particles with a liquid. In a specific application, dry cement is mixed with water to obtain a cement slurry for cementing oil and gas well casings. The cement particles and water are directed into a disperser unit, in which the water contacts the cement particles at an acute angle. The resulting slurry is passed into a volute casing positioned in a tank. As the slurry swirls within the volute, it develops a vortex action, which continuously circulates the mixture in the tank. The slurry is pumped from the tank and split into two streams. Part of the slurry stream flows directly to a pumper unit, for injection into the well. The remainder of the stream is pumped through a restricting nozzle and back through the volute, to provide a continuous recycle which enhances blending of the dry material with the liquid.

REFERENCES:
patent: 2900176 (1959-08-01), Krogel
patent: 3201093 (1965-08-01), Smith
patent: 3542342 (1970-11-01), Barron
patent: 3563517 (1971-02-01), Harriman
patent: 3741533 (1973-06-01), Winn

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