Title:
FINELY PULVERIZED MATERIAL PUMPS OF SCREW CONVEYOR TYPE
Document Type and Number:
Japanese Patent JPS527004
Kind Code:
A
Abstract:
This particulate solids pump is of the screw conveyor type for transmitting particulate solids from a hopper through a barrel when the screw conveyor is rotated and in which a flowstream of gas is supplied for facilitating the movement and suspension of the particulate solids after exiting the barrel. A sealing chamber formed by termination of the screw conveyor short of the exit end of the barrel provides an accumulation of particulate solids therebetween and a spring biased flapper valve to form a blow-back pressure seal. A flapper valve at the exit end of the barrel operates to loft the particulate solids exiting from the barrel into the flowstream of gas. A sealing apparatus provides lateral and axial sealing of the rotating shaft of the screw conveyor.
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Inventors:
REONAADO AATO YOOKU
Application Number:
JP5421976A
Publication Date:
January 19, 1977
Filing Date:
May 12, 1976
Export Citation:
Assignee:
REONAADO AATO YOOKU
International Classes:
F04D7/00; B65G53/48; F04D3/02; F04F5/24; (IPC1-7): F04D7/00
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