Fluid handling – Systems – With pump
Patent
1987-06-16
1990-05-15
Chambers, A. Michael
Fluid handling
Systems
With pump
417244, 417517, 417900, 137615, E03B 500
Patent
active
049248987
ABSTRACT:
A pumping system for sludge including hazardous waste material and other viscous material includes a vacuum pump for drawing sludge into and through an intake line to a separator where the heavier components of the sludge descend into a closed tank hopper. A positive displacement pump discharges the sludge from the closed tank hopper through a delivery line to a remote point of disposal or storage. A centrifugal pump attached to the sludge receiving end of the intake line and being hydraulically driven acts as a booster for the vacuum pump by pushing sludge into and through the intake line while helping to overcome the head pressure therein as well as friction in the intake line. The vacuum in the intake line created by the vacuum pump enables the submerged centrifugal pump to feed itself. The centrifugal pump also functions as a cutter head helping to liquefy heavy sludge. A substantial increase in the material moving capacity of the system is realized by using the centrifugal pump in conjunction with the vacuum pump.
REFERENCES:
patent: 547538 (1895-10-01), Coffey
patent: 3085587 (1963-04-01), O'Shields
patent: 3809505 (1974-05-01), Dobson, Sr. et al.
patent: 4172617 (1979-10-01), de Koning
patent: 4613290 (1986-09-01), Evenson
patent: 4659293 (1987-04-01), Evenson
patent: 4661046 (1987-04-01), Ruyle
Chambers A. Michael
Matthews Guy E.
The GNI Group, Inc.
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