Apparatus for pneumatically conveying bulk material

Details Apparatus for pneumatically conveying bulk material Apparatus for pneumatically conveying bulk material

1988-05-04

1989-08-29

Peters, Jr., Joseph F.

Conveyors: fluid current

With means to control conveying fluid or movement of load in...

Control of conveying fluid

406 11, 406 12, 406 95, B65G 5366

Patent

active

048612006

ABSTRACT:
An apparatus for pneumatically conveying bulk material includes a conveyor line for transporting the bulk material and a secondary line which carries clean gas and is multiply connected via branch line and a plurality of check valves with the conveyor line for allowing introduction of clean gas when the pressure difference as measured between adjacent pressure transmitters exceeds a predetermined value. Adjacent pressure transmitters are operatively connected with a differential pressure switch which actuates a valve regulating the flow of clean gas through the branch line. The differential pressure switch opens the valve as soon as the pressure difference exceeds the predetermined value.

REFERENCES:
patent: 3295896 (1967-01-01), Hurtig et al.
patent: 4389143 (1983-06-01), Nadin et al.
patent: 4515503 (1985-05-01), Snowdon
patent: 4715748 (1987-12-01), Krambrock

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