Fluidizing gravity conveyor with high temperature...

Details Fluidizing gravity conveyor with high temperature... Fluidizing gravity conveyor with high temperature...

2007-06-28

2009-06-30

Hess, Douglas A (Department: 3651)

Conveyors: fluid current

Having means for maintaining load in suspension along flow path

Including permeable member

C406S088000, C406S089000, C406S138000

Reexamination Certificate

active

07553111

ABSTRACT:
An apparatus for conveying fluidized high temperature finely divided dry material by gravity utilizes a multi-layered, gas permeable gas distributor member comprising (i) an upper layer a flat, rigid gas permeable, porous medium capable of withstanding temperatures up to about 2900° F. through which gas to fluidize the material will pass; (ii) a middle layer comprised of a gas permeable insulation material that maintains its physical integrity when exposed to temperature differentials ranging from about 500° F. to about 2900° F.; and (iii) a lower layer that supports the top and middle layers comprising a substantially flat plate having a plurality of openings therethrough through which fluidizing gas can pass.

REFERENCES:
patent: 1759983 (1930-05-01), Houston
patent: 2882097 (1959-04-01), Hamren
patent: 3040439 (1962-06-01), Frost
patent: 4618295 (1986-10-01), Dugge et al.
patent: 4818152 (1989-04-01), Lawall
patent: 6382881 (2002-05-01), Gasquet et al.
patent: 6764296 (2004-07-01), Zahrah et al.
patent: 2003/0150806 (2003-08-01), Hobbs et al.

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