Apparatus and method for feeding solid materials to a high press

Details Apparatus and method for feeding solid materials to a high press Apparatus and method for feeding solid materials to a high press

1985-07-22

1987-09-22

Spar, Robert J.

Material or article handling

Apparatus for moving material between zones having different...

Including serially arranged valves in path having a vertical...

414786, 414217, B65G 6532

Patent

active

046952144

ABSTRACT:
An apparatus and method utilize liquid pressurized lock hoppers to feed solids to a high pressure vessel. Solids are introduced to a first lock hopper, and gases are passed to the first lock hopper from a second lock hopper which has previously discharged solids. Liquid is supplied to the first lock hopper so as to attain a pressure equivalent to the pressure of the high pressure vessel. Solids are discharged from the first lock hopper to a high pressure vessel after pressurization.

REFERENCES:
patent: 3729105 (1973-04-01), Huebler et al.
patent: 4247240 (1981-01-01), Schora, Jr. et al.
patent: 4401402 (1983-08-01), Casperson
"Coal Feeder Development, Phase I Report," Foster-Miller Associates, Inc., Waltham, Mass., FE-1793-10, ERDA (Mar. 1976), pp. 4-51, 148-171, Apps. A, B, and F.
"Coal Feeder Development Program," Quarterly Technical Progress Report, Lockheed Missiles & Space Company, Inc., FE-1792-4 (Sep. 30, 1975), pp. 12 and 104-111.
Ferretti, E. J. "Feeding Coal to Pressurized Systems" Chemical Engineering (Dec. 9, 1974), pp. 113-116.
Lewis, R. et al., "Coal Pressurization and Feeding--Use of a Lock Hopper System" In: Proceedings of the Conference on Coal Feeding Systems, held at Cal. Inst. of Tech. prepared by JPL (Sep. 15, 1977), pp. 65-72.
Funk, E. et al., "Comparative Description of Coal Feeding Systems for Fixed Bed Pressure Gasification," In: Proceedings of the Conference on Coal Feeding Systems, held at Cal. Inst. of Tech., prepared by JPL (Sep. 15, 1977), pp. 139, 150, and 151.

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