Solids-fluid contacting apparatus with screen at fluid outlet

Details Solids-fluid contacting apparatus with screen at fluid outlet Solids-fluid contacting apparatus with screen at fluid outlet

1989-06-20

1990-09-11

Yeung, George

Food or edible material: processes, compositions, and products

Processes

Separating a starting material into plural different...

210162, 422261, 426427, 426481, A23F 500, B01D 1100

Patent

active

049561766

ABSTRACT:
A screen is mounted in an apparatus for contacting particulate solids with a fluid. The apparatus comprises an elongate column for holding a bed of particulate solids for contact with a fluid, the column being designed to be oriented substantially vertically in use and having a fluid inlet near the bottom for admitting a fluid into the column and a fluid outlet near the top for permitting the fluid to exit the column after passing upwardly through a bed of particulate solids in the column. The purpose of the screen is to screen solids from the fluid exiting the column through the fluid outlet. The screen comprises a plurality of vertical screen wires, and the screen is located within the column such that all of the fluid passing through the column passes through the screen and then through the fluid outlet. Each pair of adjacent vertical screen wires defines a substantially vertical screen slot therebetween. The opening of each vertical screen slot at the surface of the screen which is upstream in the sense of a fluid flowing through the column, passing through the screen, and exiting through the outlet during operation of the column, has a width suitable for screening solids from the exiting fluid and has a length which is substantially greater than its width.

REFERENCES:
patent: 4260639 (1981-04-01), Zosel
patent: 4416859 (1983-11-01), Brown et al.
patent: 4820537 (1989-04-01), Katz

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