CA2472595A1 - Motor control system for vibrating screen separator - Google Patents
Motor control system for vibrating screen separator Download PDFInfo
- Publication number
- CA2472595A1 CA2472595A1 CA002472595A CA2472595A CA2472595A1 CA 2472595 A1 CA2472595 A1 CA 2472595A1 CA 002472595 A CA002472595 A CA 002472595A CA 2472595 A CA2472595 A CA 2472595A CA 2472595 A1 CA2472595 A1 CA 2472595A1
- Authority
- CA
- Canada
- Prior art keywords
- frame
- separator
- moving
- rotation
- rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
Abstract
A vibrating screen separator. The vibrating screen separator may be operated in a linear, an elliptical, or in a transition from elliptical to linear modes of operation. In the linear mode of operation, the screen separator moves along a reciprocating straight line path, and, in the elliptical mode of operation, the screen separator moves along an elliptical path. In the transitionary mode of operation, the screen separator is transitioned from movement along the elliptical path to movement along the linear path.
Claims (35)
1. A separator for separating solids from liquids, comprising:
a frame;
a screen coupled to the frame;
means for moving the frame along a reciprocating linear path of travel;
means for moving the frame along an elliptical path of travel;
means for transitioning between moving the frame along the elliptical path of travel to the reciprocating path of travel.
a frame;
a screen coupled to the frame;
means for moving the frame along a reciprocating linear path of travel;
means for moving the frame along an elliptical path of travel;
means for transitioning between moving the frame along the elliptical path of travel to the reciprocating path of travel.
2. The separator of claim 1, wherein the means for moving the frame along the reciprocating path of travel comprises:
first and second counter-rotating means.
first and second counter-rotating means.
3. The separator of claim 2, wherein the first and second counter-rotating means rotate at substantially equal speeds.
4. The separator of claim 2, wherein the first counter-rotating means includes a first unbalanced weight; and wherein the second counter-rotating means includes a second unbalanced weight.
5. The separator of claim 4, wherein the mass and the locations of the centers of mass of the first and second unbalanced weights are substantially equal.
6. The separator of claim 1, wherein the means for moving the frame along the elliptical path of travel comprises:
first and second counter-rotating means; and third rotating means.
first and second counter-rotating means; and third rotating means.
7. The separator of claim 3, wherein the first and second counter-rotating means rotate at substantially equal speeds.
8. The separator of claim 3, wherein the first counter-rotating means includes a first unbalanced weight; and wherein the second counter-rotating means includes a second unbalanced weight.
9. The separator of claim 8, wherein the mass and the locations of the centers of mass of the first and second unbalanced weights are substantially equal.
10. The separator of claim 3, wherein the centers of rotation of the first and second counter-rotating means are normal to a common plane; and wherein the center of rotation of the third rotating means is not normal to the common plane.
11. The separator of claim 1, wherein the means for moving the frame along the reciprocating path of travel comprises first and second counter-rotating means; wherein the means for moving the frame along the elliptical path of travel comprises the first and second counter-rotating means and third rotating means; and wherein the means for transitioning between moving the frame along the elliptical path of travel to the reciprocating path of travel comprises means for momentarily stopping the operation of the first and second counter-rotating means and means for momentarily applying a reversing torque to the third rotating means.
12. A method of operating a separator including a screen coupled to a frame, comprising:
injecting a fluidic material including solids and liquids onto the screen;
moving the frame along a reciprocating linear path of travel in a first mode of operation;
moving the frame along an elliptical path in a second mode of operation;
transitioning between moving the frame along the reciprocating linear path of travel and the elliptical path in a third mode of operation.
injecting a fluidic material including solids and liquids onto the screen;
moving the frame along a reciprocating linear path of travel in a first mode of operation;
moving the frame along an elliptical path in a second mode of operation;
transitioning between moving the frame along the reciprocating linear path of travel and the elliptical path in a third mode of operation.
13. The method of claim 12, wherein moving the frame along the reciprocating linear path comprises:
rotating a first unbalanced weight in a first direction about a first axis of rotation at a first speed; and rotating a second unbalanced weight in a second direction about a second axis of rotation at a second speed.
rotating a first unbalanced weight in a first direction about a first axis of rotation at a first speed; and rotating a second unbalanced weight in a second direction about a second axis of rotation at a second speed.
14. The method of claim 13, wherein the first and second speeds are equal; and wherein the first and second directions are opposite.
15. The method of claim 13, wherein the mass and the locations of the centers of mass of the first and second unbalanced weights are substantially equal.
16. The method of claim 12, wherein moving the frame along the elliptical path comprises:
rotating a first unbalanced weight in a first direction about a first axis of rotation at a first speed;
rotating a second unbalanced weight in a second direction about a second axis of rotation at a second speed; and rotating a third unbalanced weight in a third direction about a third axis of rotation.
rotating a first unbalanced weight in a first direction about a first axis of rotation at a first speed;
rotating a second unbalanced weight in a second direction about a second axis of rotation at a second speed; and rotating a third unbalanced weight in a third direction about a third axis of rotation.
17. The method of claim 16, wherein the first and second speeds are equal; and wherein the first and second directions are opposite.
18. The method of claim 16, wherein the mass and the locations of the centers of mass and the masses of the first and second unbalanced weights are substantially equal.
19. The method of claim 16, wherein the first and second axes of rotation are normal to a different plane than the third axis of rotation.
20. The method of claim 12, wherein moving the frame along the reciprocating linearpath of travel comprises rotating a first unbalanced weight in a first direction about a first axis of rotation at a first speed and rotating a second unbalanced weight in a second direction about a second axis of rotation at a second speed; wherein moving the frame along the elliptical path comprises rotating the first unbalanced weight in the first direction about the first axis of rotation at the first speed, rotating the second unbalanced weight in the second direction about the second axis of rotation at the second speed, and rotating a third unbalanced weight in a third direction about a third axis of rotation; and wherein transitioning between moving the frame along the elliptical path of travel to the reciprocating path of travel comprises momentarily stopping the rotation of the first and second unbalanced weights and momentarily applying a reversing torque to the third unbalanced weight.
21. A separator, comprising:
a frame;
a screen coupled to the frame;
an actuator for imparting linear motion to the frame coupled to the frame;
an actuator for imparting elliptical motion to the frame coupled to the frame;
and a controller operably coupled to the actuator for imparting reciprocating linear motion to the frame and the actuator for imparting elliptical motion to the frame for controlling the operation of the actuator for imparting reciprocating linear motion to the frame and the actuator for imparting elliptical motion to the frame;
wherein the controller is programmed to operate in a first mode of operation in which the actuator for imparting reciprocating linear motion to the frame is operated;
wherein the controller is programmed to operate in a second mode of operation in which the actuator for imparting elliptical motion to the frame is operated;
and wherein the controller is programmed to operate in a third mode of operation in which the actuator for imparting reciprocating linear motion is momentarily stopped and the actuator for imparting elliptical motion is momentarily reversed.
a frame;
a screen coupled to the frame;
an actuator for imparting linear motion to the frame coupled to the frame;
an actuator for imparting elliptical motion to the frame coupled to the frame;
and a controller operably coupled to the actuator for imparting reciprocating linear motion to the frame and the actuator for imparting elliptical motion to the frame for controlling the operation of the actuator for imparting reciprocating linear motion to the frame and the actuator for imparting elliptical motion to the frame;
wherein the controller is programmed to operate in a first mode of operation in which the actuator for imparting reciprocating linear motion to the frame is operated;
wherein the controller is programmed to operate in a second mode of operation in which the actuator for imparting elliptical motion to the frame is operated;
and wherein the controller is programmed to operate in a third mode of operation in which the actuator for imparting reciprocating linear motion is momentarily stopped and the actuator for imparting elliptical motion is momentarily reversed.
22. The separator of claim 21, wherein the actuator for imparting reciprocating linear motion to the frame comprises:
a first actuator comprising:
a first rotary motor having a first output shaft; and a first unbalanced weight coupled to the first output shaft; and a second actuator comprising:
a second rotary motor having a second output shaft; and a second unbalanced weight coupled to the second output shaft.
a first actuator comprising:
a first rotary motor having a first output shaft; and a first unbalanced weight coupled to the first output shaft; and a second actuator comprising:
a second rotary motor having a second output shaft; and a second unbalanced weight coupled to the second output shaft.
23. The separator of claim 22, wherein, in the first mode of operation, the controller is programmed to rotate the first output shaft in a first direction at a first speed and rotate the second output shaft in a second direction at a second speed.
24. The separator of claim 23, wherein the first and second directions are opposite; and wherein the first and second speeds are substantially equal.
25. The separator of claim 22, wherein the position of the centers of mass and the mass of the first and second unbalanced weights are substantially equal.
26. The separator of claim 22, wherein the first and second output shafts are normal to a common plane.
27. The separator of claim 21, wherein the actuator for imparting elliptical motion to the frame comprises:
a first actuator comprising:
a first rotary motor having a first output shaft; and a first unbalanced weight coupled to the first output shaft; and a second actuator comprising:
a second rotary motor having a second output shaft; and a second unbalanced weight coupled to the second output shaft; and a third actuator comprising:
a third rotary motor having a third output shaft; and a third unbalanced weight coupled to the third output shaft.
a first actuator comprising:
a first rotary motor having a first output shaft; and a first unbalanced weight coupled to the first output shaft; and a second actuator comprising:
a second rotary motor having a second output shaft; and a second unbalanced weight coupled to the second output shaft; and a third actuator comprising:
a third rotary motor having a third output shaft; and a third unbalanced weight coupled to the third output shaft.
28. The separator of claim 27, wherein, in the second mode of operation, the controller is programmed to rotate the first output shaft in a first direction at a first speed, rotate the second output shaft in a second direction at a second speed, and rotate the third output shaft.
29. The separator of claim 28, wherein the first and second directions are opposite; and wherein the first and second speeds are substantially equal.
30. The separator of claim 27, wherein the position of the centers of mass and the mass of the first and second unbalanced weights are substantially equal.
31. The separator of claim 27, wherein the first and second output shafts are normal to a common plane.
32. The separator of claim 31, wherein the third output shaft is not normal to the common plane.
33. A separator for separating liquids from solids, comprising:
a frame;
a screen coupled to the frame;
first and second counter-rotating means for moving the frame;
rotating means for moving the frame; and control means for operating the first and second counter-rotating means for moving the frame along a reciprocating linear path;
control means for operating the first and second counter-rotating means and the rotating means for moving the frame along am elliptical path;
control means for transitioning between operating the first and second counter-rotating means and the rotating means for moving the frame along the elliptical path and operating the first and second counter-rotating means for moving the frame along the reciprocating linear path.
a frame;
a screen coupled to the frame;
first and second counter-rotating means for moving the frame;
rotating means for moving the frame; and control means for operating the first and second counter-rotating means for moving the frame along a reciprocating linear path;
control means for operating the first and second counter-rotating means and the rotating means for moving the frame along am elliptical path;
control means for transitioning between operating the first and second counter-rotating means and the rotating means for moving the frame along the elliptical path and operating the first and second counter-rotating means for moving the frame along the reciprocating linear path.
34. A method of operating a separator including a screen coupled to a frame, comprising:
injecting a fluidic material including solids and liquids onto the screen;
moving the frame along a reciprocating linear path of travel in a first mode of operation by a method comprising:
rotating a first unbalanced weight in a first direction about a first axis of rotation at a first speed; and rotating a second unbalanced weight in a second direction about a second axis of rotation at a second speed;
wherein the locations of the centers of mass and the masses of the first and second unbalanced weights are substantially equal; and wherein the first and second speeds are equal; and wherein the first and second directions are opposite;
moving the frame along an elliptical path in a second mode of operation by a method comprising:
rotating the first unbalanced weight in the first direction about the first axis of rotation at the first speed;
rotating the second unbalanced weight in the second direction about the second axis of rotation at the second speed; and rotating a third unbalanced weight about a third axis of rotation;
wherein the first and second axis of rotation are normal to a common plane;
and wherein the third axis of rotation is not normal to the common plane; and transitioning between moving the frame along the elliptical path in the second mode of operation to moving the frame along the reciprocating linear path of travel in the first mode of operation by a method comprising:
momentarily stopping the rotation of the first unbalanced weight in the first direction about the first axis of rotation at the first speed;
momentarily stopping the rotation of the second unbalanced weight in the second direction about the second axis of rotation at the second speed;
and momentarily applying a reversing torque to the third unbalanced weight.
injecting a fluidic material including solids and liquids onto the screen;
moving the frame along a reciprocating linear path of travel in a first mode of operation by a method comprising:
rotating a first unbalanced weight in a first direction about a first axis of rotation at a first speed; and rotating a second unbalanced weight in a second direction about a second axis of rotation at a second speed;
wherein the locations of the centers of mass and the masses of the first and second unbalanced weights are substantially equal; and wherein the first and second speeds are equal; and wherein the first and second directions are opposite;
moving the frame along an elliptical path in a second mode of operation by a method comprising:
rotating the first unbalanced weight in the first direction about the first axis of rotation at the first speed;
rotating the second unbalanced weight in the second direction about the second axis of rotation at the second speed; and rotating a third unbalanced weight about a third axis of rotation;
wherein the first and second axis of rotation are normal to a common plane;
and wherein the third axis of rotation is not normal to the common plane; and transitioning between moving the frame along the elliptical path in the second mode of operation to moving the frame along the reciprocating linear path of travel in the first mode of operation by a method comprising:
momentarily stopping the rotation of the first unbalanced weight in the first direction about the first axis of rotation at the first speed;
momentarily stopping the rotation of the second unbalanced weight in the second direction about the second axis of rotation at the second speed;
and momentarily applying a reversing torque to the third unbalanced weight.
35. A separator, comprising:
a frame;
a screen coupled to the frame;
a linear actuator coupled to the frame comprising:
a first rotary motor coupled to the frame comprising a first rotatable shaft;
a first unbalanced weight coupled to the first rotatable shaft;
a second rotary motor coupled to the frame comprising a second rotatable shaft; and a second unbalanced weight coupled to the second rotatable shaft;
wherein the location of the centers of mass and the mass of the first and second unbalanced weights are substantially equal; and wherein the first and second rotatable shafts are substantially parallel and are normal to the same plane;
an elliptical actuator coupled to the frame comprising:
the linear actuator;
a third rotary motor coupled to the frame comprising a third rotatable shaft;
and a third unbalanced weight coupled to the third rotatable shaft;
wherein the third rotatable shaft is not normal to the same plane as the first and second rotatable shafts; and a controller operably coupled to the linear and elliptical actuators for controlling the operation of the linear and elliptical actuators;
wherein the controller is programmed to operate in a first mode of operation in which the first and second rotatable shafts are rotated at substantially the same speed in opposite directions;
wherein the controller is programmed to operate in a second mode of operation in which the first and second rotatable shafts are rotated at substantially the same speed in opposite directions while the third rotatable shaft is rotated; and wherein the controller is programmed to operate in a third mode of operation in which the first and second rotatable shafts are momentarily stopped and a reversing torque is momentarily applied to the third rotatable shaft.
a frame;
a screen coupled to the frame;
a linear actuator coupled to the frame comprising:
a first rotary motor coupled to the frame comprising a first rotatable shaft;
a first unbalanced weight coupled to the first rotatable shaft;
a second rotary motor coupled to the frame comprising a second rotatable shaft; and a second unbalanced weight coupled to the second rotatable shaft;
wherein the location of the centers of mass and the mass of the first and second unbalanced weights are substantially equal; and wherein the first and second rotatable shafts are substantially parallel and are normal to the same plane;
an elliptical actuator coupled to the frame comprising:
the linear actuator;
a third rotary motor coupled to the frame comprising a third rotatable shaft;
and a third unbalanced weight coupled to the third rotatable shaft;
wherein the third rotatable shaft is not normal to the same plane as the first and second rotatable shafts; and a controller operably coupled to the linear and elliptical actuators for controlling the operation of the linear and elliptical actuators;
wherein the controller is programmed to operate in a first mode of operation in which the first and second rotatable shafts are rotated at substantially the same speed in opposite directions;
wherein the controller is programmed to operate in a second mode of operation in which the first and second rotatable shafts are rotated at substantially the same speed in opposite directions while the third rotatable shaft is rotated; and wherein the controller is programmed to operate in a third mode of operation in which the first and second rotatable shafts are momentarily stopped and a reversing torque is momentarily applied to the third rotatable shaft.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/044,681 | 2002-01-11 | ||
| US10/044,681 US6679385B2 (en) | 2001-04-18 | 2002-01-11 | Motor control system for vibrating screen separator |
| PCT/US2003/000715 WO2003059533A1 (en) | 2002-01-11 | 2003-01-09 | Motor control system for vibrating screen separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2472595A1 true CA2472595A1 (en) | 2003-07-24 |
| CA2472595C CA2472595C (en) | 2010-11-23 |
Family
ID=21933722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2472595A Expired - Fee Related CA2472595C (en) | 2002-01-11 | 2003-01-09 | Motor control system for vibrating screen separator |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6679385B2 (en) |
| EP (1) | EP1472012A4 (en) |
| AU (1) | AU2003202280B2 (en) |
| CA (1) | CA2472595C (en) |
| EA (1) | EA005879B1 (en) |
| MX (1) | MXPA04006713A (en) |
| MY (1) | MY134682A (en) |
| NO (1) | NO329992B1 (en) |
| WO (1) | WO2003059533A1 (en) |
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| US7278540B2 (en) * | 2004-04-29 | 2007-10-09 | Varco I/P, Inc. | Adjustable basket vibratory separator |
| US7331469B2 (en) * | 2004-04-29 | 2008-02-19 | Varco I/P, Inc. | Vibratory separator with automatically adjustable beach |
| US20050242003A1 (en) * | 2004-04-29 | 2005-11-03 | Eric Scott | Automatic vibratory separator |
| WO2003092899A2 (en) * | 2002-05-03 | 2003-11-13 | General Kinematics Corporation | Vibratory sand reclaiming apparatus having normal and reject modes |
| US8312995B2 (en) * | 2002-11-06 | 2012-11-20 | National Oilwell Varco, L.P. | Magnetic vibratory screen clamping |
| US20060113220A1 (en) * | 2002-11-06 | 2006-06-01 | Eric Scott | Upflow or downflow separator or shaker with piezoelectric or electromagnetic vibrator |
| US7571817B2 (en) * | 2002-11-06 | 2009-08-11 | Varco I/P, Inc. | Automatic separator or shaker with electromagnetic vibrator apparatus |
| US20050274654A1 (en) * | 2004-04-15 | 2005-12-15 | Sukovaty Louis G | Method and apparatus for sifting soil |
| US20080083566A1 (en) | 2006-10-04 | 2008-04-10 | George Alexander Burnett | Reclamation of components of wellbore cuttings material |
| US8800780B2 (en) * | 2006-12-21 | 2014-08-12 | M-I L.L.C. | Motors with magnetic coupling for transfer of shaker motion |
| KR100863588B1 (en) * | 2007-08-21 | 2008-10-15 | 세메스 주식회사 | Catalyst spreading device in a producing device of carbon nanotubes |
| US8622220B2 (en) * | 2007-08-31 | 2014-01-07 | Varco I/P | Vibratory separators and screens |
| GB2501188B (en) * | 2008-05-16 | 2013-12-11 | Mi Llc | Methods to increase force and change vibratory separator motion |
| US8561803B2 (en) * | 2008-07-07 | 2013-10-22 | Derrick Corporation | Method and apparatuses for screening |
| US9073104B2 (en) | 2008-08-14 | 2015-07-07 | National Oilwell Varco, L.P. | Drill cuttings treatment systems |
| US9079222B2 (en) * | 2008-10-10 | 2015-07-14 | National Oilwell Varco, L.P. | Shale shaker |
| US8556083B2 (en) | 2008-10-10 | 2013-10-15 | National Oilwell Varco L.P. | Shale shakers with selective series/parallel flow path conversion |
| US20100181265A1 (en) * | 2009-01-20 | 2010-07-22 | Schulte Jr David L | Shale shaker with vertical screens |
| US10220337B2 (en) | 2012-07-25 | 2019-03-05 | M-I L.L.C. | Method of securing a screen to a basket of a vibratory separator using a magnetic wedge |
| US9643111B2 (en) | 2013-03-08 | 2017-05-09 | National Oilwell Varco, L.P. | Vector maximizing screen |
| CN104612608A (en) * | 2015-01-30 | 2015-05-13 | 张劲南 | Novel mud solid control system and technology |
| US11111743B2 (en) * | 2016-03-03 | 2021-09-07 | Recover Energy Services Inc. | Gas tight shale shaker for enhanced drilling fluid recovery and drilled solids washing |
| CN113058840B (en) * | 2021-03-04 | 2022-06-03 | 吉林建筑大学 | Sieving device and sieving method for degradable high polymer material |
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| US4272258A (en) * | 1979-11-26 | 1981-06-09 | Shifflett Wiley M | Mud degasser method and apparatus |
| US4340469A (en) * | 1981-01-23 | 1982-07-20 | Spokane Crusher Mfg. Co. | Vibratory screen apparatus |
| US4387514A (en) * | 1981-04-06 | 1983-06-14 | Dresser Industries, Inc. | Method for drying oil well drill cuttings |
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-
2002
- 2002-01-11 US US10/044,681 patent/US6679385B2/en not_active Expired - Lifetime
-
2003
- 2003-01-09 MY MYPI20030068A patent/MY134682A/en unknown
- 2003-01-09 AU AU2003202280A patent/AU2003202280B2/en not_active Ceased
- 2003-01-09 WO PCT/US2003/000715 patent/WO2003059533A1/en not_active Application Discontinuation
- 2003-01-09 EA EA200400941A patent/EA005879B1/en not_active IP Right Cessation
- 2003-01-09 EP EP03701297A patent/EP1472012A4/en not_active Withdrawn
- 2003-01-09 CA CA2472595A patent/CA2472595C/en not_active Expired - Fee Related
- 2003-01-09 MX MXPA04006713A patent/MXPA04006713A/en active IP Right Grant
-
2004
- 2004-08-10 NO NO20043332A patent/NO329992B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US20020153288A1 (en) | 2002-10-24 |
| AU2003202280A1 (en) | 2003-07-30 |
| EA005879B1 (en) | 2005-06-30 |
| MXPA04006713A (en) | 2004-11-10 |
| WO2003059533A1 (en) | 2003-07-24 |
| NO20043332L (en) | 2004-08-10 |
| EP1472012A4 (en) | 2005-04-27 |
| EA200400941A1 (en) | 2004-12-30 |
| MY134682A (en) | 2007-12-31 |
| CA2472595C (en) | 2010-11-23 |
| US6679385B2 (en) | 2004-01-20 |
| AU2003202280B2 (en) | 2008-07-10 |
| EP1472012A1 (en) | 2004-11-03 |
| NO329992B1 (en) | 2011-02-07 |
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