Integrally formed heavy media pulping column

Details Integrally formed heavy media pulping column Integrally formed heavy media pulping column

2005-01-11

2005-01-11

Walsh, Donald P. (Department: 3653)

Classifying, separating, and assorting solids

Treatment subsequent

C209S317000

Reexamination Certificate

active

06840382

ABSTRACT:
In a coal preparation plant which receives a raw coal feed and separates the raw coal feed into a clean coal feed and a refuse feed, an apparatus is provided for use therein. The apparatus mixes the sized raw coal feed particles with a slurry of media and water used for separating the raw coal feed into clean coal and refuse. The inventive apparatus includes a pulping column integrally designed with the discharge chute of a deslime screen and the drain section underpan of clean coal and refuse screens. The pulping column having a coal inlet receiving the sized raw coal directly from the deslime screen, a media inlet receiving the slurry of media and water directly from an underpan of at least one of the refuse screen and the clean coal screen, and an outlet discharging the mixture of sized raw coal and slurry. The pulping column mixes the sized raw coal and the slurry of media and water according to a select proportion, and it is then pumped to a heavy media separation section of the coal preparation plant.

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