Apparatus for pneumatic conveyance of pulverulent or granular ma

Details Apparatus for pneumatic conveyance of pulverulent or granular ma Apparatus for pneumatic conveyance of pulverulent or granular ma

1977-05-11

1978-05-16

Blunk, Evon C.

Cutlery

302 42, 302 53, B65B 5366

Patent

active

040895637

ABSTRACT:
An apparatus for the pneumatic conveyance of pulverulent or granular material, has a reservoir for the material, a fluidization barrier in the reservoir, an outlet for material flowing from above the barrier in the reservoir, an inlet conduit for fluidization gas opening below the barrier, a conveyor conduit connected to the outlet, an inlet conduit for pressurized conveying gas opening into the conveyor conduit, a first valve in the inlet conduit for fluidization gas, a second valve in the inlet conduit for conveying gas and control means for the said first and second valves arranged to control both the valves in dependence upon pressure in the conveyor conduit and to maintain said second valve partly open when said first valve is open but to open said second valve beyond a predetermined opening degree when said first valve is completely closed.

REFERENCES:
patent: 2919159 (1959-12-01), Lacroix
patent: 3001829 (1961-09-01), De Saint-Martin
patent: 3365242 (1968-01-01), Marchetti

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