Two-tube continuous sand muller

Details Two-tube continuous sand muller Two-tube continuous sand muller

1980-04-25

1982-03-30

Coe, Philip R.

Agitating

Mortar mixer type

Plural mixing chambers

366 40, 366 64, B28C 514

Patent

active

043221688

ABSTRACT:
A continuous sand muller for mixing foundry sand and binder additives includes a premixing tube and a primary mixing tube removably secured to a frame. The premixing tube includes a mixing auger and mixes sand and a catalyst. The primary mixing tube receives the mix from the premixing tube. A resin additive or other binder is fed to the primary mixing tube. A single, double shafted motor drives the primary mixing auger directly and the premixing auger through a timing belt drive. The mixed sand and binder is delivered by the primary mixing tube to an outlet. An access or cleanout cover is removably secured to the primary mixing tube.

REFERENCES:
patent: 2028745 (1936-01-01), Hendrick et al.
patent: 3268214 (1966-08-01), Higgs
patent: 4039169 (1977-08-01), Bartholomew
patent: 4174906 (1979-11-01), Richard

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