Comparison of several lift-line feeders

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:5827496

Knowlton, T; Aquino, C

In many chemical processes, pneumatic conveying transfer lines are used as dilute-phase reactors. Smooth, controlled feeding of solids into these reactors is essential for optimum operation. For example, if solids are fed into a conveying line nonuniformly in slugs, gas-solids contacting may be reduced and loss of reaction efficiency may result. In this investigation, tests were conducted to determine how well several devices fed solids into a pneumatic conveying line. Seven nonmechanical valves and lift-line feeders were tested. These devices have the potential advantages of requiring no mechanical valves and/or expansion joints. Conclusions from this study are: (1) Lift-pots and nonmechanical valves both can satisfactorily feed pneumatic conveying lines. (2) The Lift-Pot I device was the simplest and best pneumatic conveying line feeder of all the lift pots tested. (3) The nonmechanical valves generally used less gas to feed solids into the lift line than the lift-pot devices. (4) The L-valve was the most aeration-efficient of all the feeders tested.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• OSTI ID: 5827496
• Report Number(s): CONF-811007-9; ON: DE82902133
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
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Lignite
& Peat-- Transport
Handling
& Storage
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Lignite
& Peat-- Combustion
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DESIGN
EQUIPMENT
FLUID MECHANICS
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
MATERIALS HANDLING
MECHANICS
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PNEUMATICS
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TRANSPORT
VALUES