Solid material comminution or disintegration – Apparatus – Rotary striking member with axial or radial flow of material
Reexamination Certificate
1999-08-26
2001-03-20
Rosenbaum, Mark (Department: 3725)
Solid material comminution or disintegration
Apparatus
Rotary striking member with axial or radial flow of material
C241S284000, C241S295000
Reexamination Certificate
active
06202949
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is related to a pulverizer assembly, and more particularly to a pulverizer assembly having the capability of receiving materials in a slurry condition, such as drill cuttings from a wellbore and to significantly reduce the particle size of particulate material included in the slurry.
2. Description of the Prior Art
The disposal of drill cuttings has been a longstanding problem in the field of well drilling and this problem has recently received attention due to increased concern regarding the environment. Offshore drilling operations, in particular, are problematic because the transport of the cuttings to a landfill or a shore-based processing system is required.
One solution to this problem is disclosed in U.S. Pat. Nos. 5,109,933 and 5,129,469. The prior art system for disposing of drill cuttings as described in these patents involves the mixing and cuttings with a carrier liquid such as water, and reducing the size of the cuttings in a pump having an impeller of a backward swept blade type to form a slurry of the particles and the carrier liquid for injection into a well for disposal. Other types of pulverizers and material breaking machinery are described, for example, in the following U.S. Pat. Nos. 310,940 to Gould; 315,064 to Pratt; 345,408 to Birge; 359,630 to Pratt; 666,404 to Wurster; 2,049,920 to McNitt; 3,927,840 to Nash; 3,931,936 to Petry; and 4,947,906 to Schroeder.
In U.S. Pat. No. 5,400,977 to Applicant of the present invention there is disclosed a design of a pulverizer having pivotally mounted blade members; however there remains continuing requirements for assemblies to provide improved rates of pulverization of material with minimal down time for servicing equipment.
SUMMARY OF THE INVENTION
These and other objects of the present invention are achieved in a pulverizing assembly comprised of a tank having a chamber for rotatably mounted shaft members having a plurality of disc members about which are mounted a plurality of arcuately-shaped shoe members formed with lateral outwardly-extending curvilinearly-shaped vanes for accelerating a slurry of particulate material being processed within the chamber as more fully hereinafter disclosed.
OBJECTS OF THE INVENTION
It is an object of the present invention to provide for an improved apparatus and process for pulverizing particulate solid materials.
It is another object of the present invention to provide for an improved pulverizer for use in a drill cutting disposal system wherein one pass of the cuttings through the pulverizer is sufficient to reduce the cuttings to appropriate size.
It is a still further object of the present invention to provide an improved pulverizer for use in pulverizing various materials, such as drill cuttings, agricultural products and various types of minerals with reduced downtimes and turnarounds.
REFERENCES:
patent: 5188303 (1993-02-01), Hoof
patent: 5400977 (1995-03-01), Hayles
Frayne Clifford G.
Rosenbaum Mark
LandOfFree
Pulverizer assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pulverizer assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulverizer assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2445586