Expandable mixing section gravel and cobble eductor

Patent · Wed Jan 01 00:00:00 EST 1997

OSTI ID:871147

Miller, Arthur L ^[1]; Krawza, Kenneth I ^[2]

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1. Kenyon, MN
2. Lakeville, MN

In a hydraulically powered pump for excavating and transporting slurries in hich it is immersed, the improvement of a gravel and cobble eductor including an expandable mixing section, comprising: a primary flow conduit that terminates in a nozzle that creates a water jet internal to a tubular mixing section of the pump when water pressure is applied from a primary supply flow; a tubular mixing section having a center line in alignment with the nozzle that creates a water jet; a mixing section/exit diffuser column that envelopes the flexible liner; and a secondary inlet conduit that forms an opening at a bas portion of the column and adjacent to the nozzle and water jet to receive water saturated gravel as a secondary flow that mixes with the primary flow inside of the mixing section to form a combined total flow that exits the mixing section and decelerates in the exit diffuser.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 5667365
• OSTI ID: 871147
• Country of Publication: United States
• Language: English

Related Subjects

expandable
mixing
section
gravel
cobble
eductor
hydraulically
powered
pump
excavating
transporting
slurries
immersed
improvement
including
comprising
primary
flow
conduit
terminates
nozzle
creates
water
jet
internal
tubular
pressure
applied
supply
center
line
alignment
exit
diffuser
column
envelopes
flexible
liner
secondary
inlet
forms
bas
portion
adjacent
receive
saturated
mixes
inside
form
combined
total
exits
decelerates
water pressure
flow conduit
center line
mixing section
water jet
inlet conduit
secondary flow
cobble eductor
expandable mixing
flexible line
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