Multiple lift pneumatic conveying air velocity control apparatus

Details Multiple lift pneumatic conveying air velocity control apparatus Multiple lift pneumatic conveying air velocity control apparatus

1984-11-26

1986-08-26

Nase, Jeffrey V.

Conveyors: fluid current

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

Control of conveying fluid

73195, 73756, 239 76, 406173, B65G 5366

Patent

active

046079874

ABSTRACT:
A pneumatic conveying air velocity control apparatus comprising multiple pneumatic lifts including multiple cyclones, at least one manifold, and multiple pneumatic conduits intercommunicating the cyclones with the manifold and having a structure defining a venturi with a venturi inlet side and a venturi throat. Multiple sets of a first, second, and a third 2-way valve for each of the pneumatic lift are provided. The first 2-way valve pneumatically communicates with a pneumatic actuator and with a controller, and the second 2-way valve pneumatically communicates with the venturi inlet side and the controller; and the third 2-way valve pneumatically communicates with the venturi throat and the controller for detecting the pneumatic flow rate through the pneumatic conduit. A sequencer is provided for mechanically engaging at least one set of 2-way valve at any given time. A method for controlling the pneumatic velocity in a multiple lift pneumatic conveying air velocity control apparatus.

REFERENCES:
patent: 2390301 (1945-12-01), Hart
patent: 3144046 (1964-08-01), Seesselberg
patent: 3739159 (1973-06-01), Nalley
patent: 4262287 (1981-04-01), McLoughlin et al.
patent: 4402635 (1983-09-01), Maruo

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