Method for preventing jamming conditions in a compression device

Patent · 18 June 2002

OSTI ID:874516

Williams, Paul M ^[1]; Faller, Kenneth M ^[2]; Bauer, Edward J ^[3]

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1. Lafayette, CO
2. Thornton, CO
3. Denver, CO

A compression device for feeding a waste material to a reactor includes a waste material feed assembly having a hopper, a supply tube and a compression tube. Each of the supply and compression tubes includes feed-inlet and feed-outlet ends. A feed-discharge valve assembly is located between the feed-outlet end of the compression tube and the reactor. A feed auger-screw extends axially in the supply tube between the feed-inlet and feed-outlet ends thereof. A compression auger-screw extends axially in the compression tube between the feed-inlet and feed-outlet ends thereof. The compression tube is sloped downwardly towards the reactor to drain fluid from the waste material to the reactor and is oriented at generally right angle to the supply tube such that the feed-outlet end of the supply tube is adjacent to the feed-inlet end of the compression tube. A programmable logic controller is provided for controlling the rotational speed of the feed and compression auger-screws for selectively varying the compression of the waste material and for overcoming jamming conditions within either the supply tube or the compression tube.

• Research Organization: EG & G INC
• DOE Contract Number: AC04-90DP62349
• Assignee: The United States of America as represented by the United States Department (Washington, DC)
• Patent Number(s): US 6405662
• Application Number: 09/837,426
• OSTI ID: 874516
• Country of Publication: United States
• Language: English

Related Subjects

/110/241/
adjacent
angle
assembly
auger-screw
auger-screws
axially
compression
conditions
controller
controlling
device
downwardly
drain
extends
feed
feed-discharge
feed-inlet
feed-outlet
feeding
fluid
hopper
jamming
located
logic
material
material feed
method
oriented
overcoming
preventing
programmable
provided
reactor
rotational
rotational speed
selectively
sloped
speed
supply
supply tube
towards
tube
tubes
valve
varying
waste
waste material