Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1999-07-29
2000-08-15
Rosenbaum, Mark
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
175 66, 175206, 175207, 241 30, 241 34, 241 62, 2411018, B02C 1912
Patent
active
061023108
ABSTRACT:
An in-line grinder has been developed which can be configured to perform in a variety of applications through the use of an adjustable rotor/stator assembly, removable shear bar, and a variety of interchangeable stator-rotor configurations. A unique drive system utilizing a mechanical seal cartridge provides maximum sealing with a minimum of shaft deflection and run-out, thereby improving performance. These improvements collectively allow the grinder to be configured for optimum sizing of solids to a predetermined particle size for a broad range of materials. It has been demonstrated that a class of in-line grinders such as that described herein is applicable for sizing drill cuttings for injection into a subsurface formation by way of an annular space formed in a wellbore. The cuttings are removed from the drilling fluid, conveyed to a shearing and grinding system that converts the cuttings into a viscous slurry with the addition of water and viscosity enhancing polymers. The system in its simplest form comprises a slurry tank, a pump, and the instant in-line grinder. The pump circulates the mixture of cuttings, water including sea water and chemicals between the slurry tank and the in-line grinder. The ground mixture leaving the in-line grinder is then routed to an injection pump for high pressure injection into the formation.
REFERENCES:
patent: 5129469 (1992-07-01), Jackson
Montgomery Robert N.
Rosenbaum Mark
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