CA2528773A1 - Self-aligning and actively compensating refiner stator plate system - Google Patents
Self-aligning and actively compensating refiner stator plate system Download PDFInfo
- Publication number
- CA2528773A1 CA2528773A1 CA002528773A CA2528773A CA2528773A1 CA 2528773 A1 CA2528773 A1 CA 2528773A1 CA 002528773 A CA002528773 A CA 002528773A CA 2528773 A CA2528773 A CA 2528773A CA 2528773 A1 CA2528773 A1 CA 2528773A1
- Authority
- CA
- Canada
- Prior art keywords
- refining
- stator
- actuators
- recited
- gap
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/002—Control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/14—Adjusting, applying pressure to, or controlling distance between, discs
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/30—Disc mills
Abstract
An improvement to a mechanical refining system relates to an apparatus including three or more actuators (100) coupled to a stator (42) of the refining system, and a controller for independently operating the actuators.
An improved method of refining permits adjustment of the overall width of a refining gap between refining elements mounted by the stator and a rotor as well as the trim of the refining elements relative to each other
An improved method of refining permits adjustment of the overall width of a refining gap between refining elements mounted by the stator and a rotor as well as the trim of the refining elements relative to each other
Claims (37)
1. In a mechanical refiner having an inlet for receiving a slurry to be refined, a discharge outlet for refined slurry, a stator mounting a first refining element, and a rotor mounting a second refining element spaced from said first refining element to define a refining gap in communication with said inlet and said discharge outlet, said rotor being supported for rotary movement about an axis and relative to said stator for refining said slurry in said refining gap; the improvement comprising:
three or more actuators coupled to said stator; and a controller in communication with said three or more actuators for independently operating said three or more actuators to adjust an axial width of said refining gap and to adjust a trim of said first refining element relative to said second refining element.
three or more actuators coupled to said stator; and a controller in communication with said three or more actuators for independently operating said three or more actuators to adjust an axial width of said refining gap and to adjust a trim of said first refining element relative to said second refining element.
2. The improvement as recited in claim 1 wherein said mechanical refiner includes a casing defining a refining compartment enclosing said first and second refining elements, said casing mounting said three or more actuators.
3. The improvement as recited in claim 1 wherein said mechanical refiner includes a casing defining a refining compartment having an open end and an end plate closing said open end so as to enclose said first and second refining elements in said refining compartment, said end plate mounting said three or more actuators.
4. The improvement as recited in claim 1 wherein said three or more actuators are arranged symmetrically about the axis.
5. The improvement as recited in claim 1 wherein at least one of said three or more actuators includes an electric motor.
6. The improvement as recited in claim 1 wherein at least one of said three or more actuators includes a motor selected from the group consisting of an electric motor, a hydraulic motor and a pneumatic motor.
7. The improvement as recited in claim 1 wherein at least one of said three or more actuators has a ram extending substantially in parallel with the axis.
8. The improvement as recited in claim 1 wherein at least one of said three or more actuators has a drive shaft extending transversely to the axis.
9. The improvement as recited in claim 1 including a transmission connected to said stator for converting rotary power into axial extension, wherein at least one of said three or more actuators has a drive shaft coupled to said transmission for supplying rotary power to said transmission and inducing axial movement of a portion of said stator.
10. The improvement as recited in claim 1 wherein said controller is an electronic controller programmed to independently operate said three or more actuators to adjust the axial width of said refining gap and to adjust the trim of said first refining element relative to said second refining element.
11. The improvement as recited in claim 1 including at least one distance sensor mounted on said stator for generating a sensor signal related to a local axial width of said refiner gap.
12. The improvement as recited in claim 1 including at least three distance sensors mounted on said stator for generating a plurality of sensor signals related to local axial widths of said refiner gap.
13. The improvement as recited in claim 1 including at least three distance sensors mounted on said stator for generating a plurality of sensor signals related to local axial widths of said refiner gap, wherein said controller is an electronic controller programmed to compare said plurality of sensor signals with one or more reference values, and to independently operate said three or more actuators to adjust the axial width of said refining gap and to adjust the trim of said first refining element relative to said second refining element.
14. A method for refining a slurry using a mechanical refiner having an inlet for receiving a slurry to be refined, a discharge outlet for refined slurry, a stator mounting a first refining element, and a rotor mounting a second refining element spaced from said first refining element to define a refining gap in communication with said inlet and said discharge outlet, said rotor being supported for rotary movement about an axis and relative to said stator for refining said slurry in said refining gap;
said method comprising the steps of:
a) comparing local axial widths of the refining gap at three or more positions along the first refining element with one or more reference values;
b) independently moving three or more spaced portions of the stator along the axis to adjust an axial width of the refining gap and to adjust a trim of the first refining element relative to the second refining element;
c) inducing the slurry to flow through the inlet into the refining gap; and d) rotating the rotor about the axis and relative to the stator to refine the slurry in the refining gap.
said method comprising the steps of:
a) comparing local axial widths of the refining gap at three or more positions along the first refining element with one or more reference values;
b) independently moving three or more spaced portions of the stator along the axis to adjust an axial width of the refining gap and to adjust a trim of the first refining element relative to the second refining element;
c) inducing the slurry to flow through the inlet into the refining gap; and d) rotating the rotor about the axis and relative to the stator to refine the slurry in the refining gap.
15. The method as recited in claim 14 using a mechanical refiner having three or more actuators coupled to said stator at said three or more points, wherein said step b) includes independently actuating the three or more actuators to adjust the axial width of the refining gap and to adjust the trim of the first refining element relative to the second refining element.
16. The method as recited in claim 14 using a mechanical refiner having three or more actuators coupled to said stator at said three or more points and distance sensors mounted at said three or more positions along said refining surface, wherein:
said step a) includes generating signals related to a local axial width of the refining gap at each of said three or more positions and comparing the signals with the reference values; and said step b) includes independently actuating the three or more actuators in response to comparison of the signals with the reference values to adjust the axial width of the refining gap and to adjust the trim of the first refining element relative to the second refining element.
said step a) includes generating signals related to a local axial width of the refining gap at each of said three or more positions and comparing the signals with the reference values; and said step b) includes independently actuating the three or more actuators in response to comparison of the signals with the reference values to adjust the axial width of the refining gap and to adjust the trim of the first refining element relative to the second refining element.
17. Apparatus for use in a mechanical refiner comprising:
an end plate;
a stator including a refining element, said refining element defining an axis; and three or more actuators supported by said end plate and coupled to said stator for controlling an axial position and trim of said refining element.
an end plate;
a stator including a refining element, said refining element defining an axis; and three or more actuators supported by said end plate and coupled to said stator for controlling an axial position and trim of said refining element.
18. The apparatus as recited in claim 17 wherein said refining element defines a refining surface having a bar and groove pattern.
19. The apparatus as recited in claim 17 wherein said three or more actuators are arranged symmetrically about the axis.
20. The apparatus as recited in claim 17 wherein at least one of said three or more actuators includes an electric motor.
21. The apparatus as recited in claim 17 wherein at least one of said three or more actuators includes a motor selected from the group consisting of an electric motor, a hydraulic motor and a pneumatic motor.
22. The apparatus as recited in claim 17 wherein at least one of said three or more actuators has a ram extending substantially in parallel with the axis.
23. The apparatus as recited in claim 17 wherein at least one of said three or more actuators has a drive shaft extending transversely to the axis.
24. The apparatus as recited in claim 17 including a transmission connected to said stator for converting rotary power into axial extension, wherein at least one of said three or more actuators has a drive shaft coupled to said transmission for supplying rotary power to said transmission and inducing axial movement of a portion of said stator.
25. The apparatus as recited in claim 17 wherein said controller is an electronic controller programmed to independently operate said three or more actuators to adjust the axial width of said refining gap and to adjust the trim of said first refining element.
26. The apparatus as recited in claim 17 including at least one sensor mounted on said stator.
27. The apparatus as recited in claim 17 including at least three sensors mounted on said stator for generating a plurality of sensor signals, wherein said controller is an electronic controller programmed to compare said plurality of sensor signals with one or more reference values, and to independently operate said three or more actuators to adjust the axial position and trim of said first refining element.
28. The apparatus as recited in claim 27, wherein the signals generated are one of distance, pressure and temperature conditions representing refining gap and processing conditions.
29. The improvement as recited in claim 1, wherein the actuators are further comprised of a ball nut engageable with precision threads in response to an encoded information driven motor.
30. The improvement as recited in claim 29, wherein the controller is an encoder actively adjusting the axial width of said refining gap and said trim according to changing operating conditions.
31. The improvement of claim 30, wherein the operating conditions are at least one of refiner element wear, pressure, temperature and motor revolutions.
32. A method for refining a slurry using a mechanical refiner having an inlet for receiving a slurry to be refined, a discharge outlet for refined slurry, a stator mounting a first refining element, and a rotor mounting a second refining element spaced from said first refining element to define a refining gap in communication with said inlet and said discharge outlet, said rotor being supported for rotary movement about an axis and relative to said stator for refining said slurry in said refining gap;
said method comprising the steps of:
a) initializing the refining gap to zero;
b) comparing operating conditions in the mechanical refiner with one or more reference values;
c) independently moving three or more spaced portions of the stator along the axis to adjust an axial width of the refining gap and to adjust a trim of the first refining element relative to the second refining element according to operating conditions;
d) inducing the slurry to flow through the inlet into the refining gap; and e) rotating the rotor about the axis and relative to the stator to refine the slurry in the refining gap.
said method comprising the steps of:
a) initializing the refining gap to zero;
b) comparing operating conditions in the mechanical refiner with one or more reference values;
c) independently moving three or more spaced portions of the stator along the axis to adjust an axial width of the refining gap and to adjust a trim of the first refining element relative to the second refining element according to operating conditions;
d) inducing the slurry to flow through the inlet into the refining gap; and e) rotating the rotor about the axis and relative to the stator to refine the slurry in the refining gap.
33. The method recited in claim 32, wherein the operating conditions are at least one of refiner element wear, pressure, temperature, and motor revolutions.
34. The method recited in claim 32, wherein actuators comprising a ball nut engageable with precision threads move the spaced portions of the stator in response to an encoder information driven motor.
35. A method for refining a slurry using a mechanical refiner having an inlet for receiving a slurry to be refined, a discharge outlet for refined slurry, a stator mounting a first refining element, and a rotor mounting a second refining element spaced from said first refining element to define a refining gap in communication with said inlet and said discharge outlet, said rotor being supported for rotary movement about an axis and relative to said stator for refining said slurry in said refining gap;
said method comprising the steps of:
a) initializing the refining gap to at least one initialized refining gap value;
b) inducing the slurry to flow through the inlet into the refining gap c) rotating the rotor about the axis and relative to the stator to refine the slurry in the refining gap;
d) comparing the refining gap at three or more positions with a corresponding one of the at least one initialized refining gap value;
e) independently moving three or more spaced portions of the stator along the axis to adjust the refining gap and to adjust a trim of the first refining element relative to the second refining element;
f) continuing to induce the slurry to flow through the inlet into the adjusted refining gap;
g) rotating the rotor about the axis and relative to the stator to refine the slurry in the refining gap; and h) discharging the refined slurry through the discharge outlet.
said method comprising the steps of:
a) initializing the refining gap to at least one initialized refining gap value;
b) inducing the slurry to flow through the inlet into the refining gap c) rotating the rotor about the axis and relative to the stator to refine the slurry in the refining gap;
d) comparing the refining gap at three or more positions with a corresponding one of the at least one initialized refining gap value;
e) independently moving three or more spaced portions of the stator along the axis to adjust the refining gap and to adjust a trim of the first refining element relative to the second refining element;
f) continuing to induce the slurry to flow through the inlet into the adjusted refining gap;
g) rotating the rotor about the axis and relative to the stator to refine the slurry in the refining gap; and h) discharging the refined slurry through the discharge outlet.
36. The method as recited in claim 35 using a mechanical refiner having three or more actuators coupled to said stator at said three or more points, wherein said step d) includes independently sensing one of wear, distance, pressure or temperature conditions of the stator relative to the rotor for comparing the refining gap values to the initialized gap value.
37. The method as recited in claim 36, wherein the three or more actuators are independently moved to adjust the refining gap and to adjust the trim of the first refining element relative to the second refining element according to the condition sensed relative to the initialized refining gap value.
37. The method as recited in claim 35 using a mechanical refiner having three or more actuators coupled to said stator at said three or more points and-sensors mounted at said three or more positions along said refining surface, wherein:
said step a) includes generating signals related to the refining gap at each of said three or more positions and comparing the signals with the reference values; and said step b) includes independently actuating the three or more actuators in response to comparison of the signals with the reference values to adjust the axial width of the refining gap and to adjust the trim of the first refining element relative to the second refining element.
37. The method as recited in claim 35 using a mechanical refiner having three or more actuators coupled to said stator at said three or more points and-sensors mounted at said three or more positions along said refining surface, wherein:
said step a) includes generating signals related to the refining gap at each of said three or more positions and comparing the signals with the reference values; and said step b) includes independently actuating the three or more actuators in response to comparison of the signals with the reference values to adjust the axial width of the refining gap and to adjust the trim of the first refining element relative to the second refining element.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47701403P | 2003-06-09 | 2003-06-09 | |
| US60/477,014 | 2003-06-09 | ||
| PCT/US2004/018103 WO2004111331A2 (en) | 2003-06-09 | 2004-06-08 | Self-aligning and actively compensating refiner stator plate system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2528773A1 true CA2528773A1 (en) | 2004-12-23 |
| CA2528773C CA2528773C (en) | 2011-11-01 |
Family
ID=33551662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2528773A Expired - Fee Related CA2528773C (en) | 2003-06-09 | 2004-06-08 | Self-aligning and actively compensating refiner stator plate system |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7694902B2 (en) |
| EP (1) | EP1631391B1 (en) |
| JP (1) | JP4726796B2 (en) |
| CN (1) | CN100566839C (en) |
| CA (1) | CA2528773C (en) |
| DE (1) | DE602004030906D1 (en) |
| WO (1) | WO2004111331A2 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8415354B2 (en) | 2004-04-29 | 2013-04-09 | Abbott Laboratories | Methods of use of inhibitors of the 11-beta-hydroxysteroid dehydrogenase type 1 enzyme |
| DE102005058192A1 (en) * | 2005-12-06 | 2007-06-28 | Airbus Deutschland Gmbh | Device for fault detection of adjustable flaps |
| DE102006022886B4 (en) * | 2006-05-15 | 2020-02-27 | Pallmann Maschinenfabrik Gmbh & Co. Kg | Device for comminuting feed material |
| JP4920496B2 (en) * | 2007-05-29 | 2012-04-18 | 株式会社サトミ製作所 | Refiner rotor moving method and refiner |
| ITVR20070170A1 (en) * | 2007-11-23 | 2009-05-24 | Airaghi Srl Off | PROCEDURE FOR THE REALIZATION OF CONICAL SPARE PARTS FOR REFINERS FOR THE PRODUCTION OF PAPER |
| US20120192954A1 (en) * | 2011-01-31 | 2012-08-02 | Red Lion Bio-Energy Technologies | Rotating disc valve |
| US9457353B2 (en) | 2013-01-31 | 2016-10-04 | Orlando Utilities Commission | Coal pulverizer monitoring system and associated methods |
| US9272285B2 (en) * | 2014-04-29 | 2016-03-01 | Chin-Chu Wu | Emulsification grinder |
| US20190262837A1 (en) * | 2018-02-23 | 2019-08-29 | Orenda Automation Technologies Inc. | Gap adjusting system for a disc mill assembly of a reducing machine |
| CN108745456B (en) * | 2018-07-17 | 2023-08-22 | 中铁工程装备集团有限公司 | Jaw breaker angle monitoring device |
| US11020749B2 (en) * | 2018-09-30 | 2021-06-01 | Northeastern University | Servo control device and method for disc gap in disc powder grinding system |
| FI128873B (en) * | 2019-12-17 | 2021-02-15 | Valmet Technologies Oy | Arrangement and method for adjusting blade gap in refiner |
| EP4050154B1 (en) * | 2021-02-27 | 2023-08-16 | Valmet Technologies, Inc. | Disc refiner sliding head adjustment assembly |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2666368A (en) * | 1950-10-14 | 1954-01-19 | Black Clawson Co | Paper machinery |
| US2986434A (en) * | 1957-02-13 | 1961-05-30 | Black Clawson Co | Paper machinery |
| US3506199A (en) * | 1968-01-18 | 1970-04-14 | Black Clawson Co | Paper pulp refiner control system |
| SE327624B (en) * | 1968-12-20 | 1970-08-24 | Reinhall Rolf | |
| US3827644A (en) * | 1969-02-19 | 1974-08-06 | Defibrator Ab | Grinding apparatus |
| US3799456A (en) * | 1972-06-14 | 1974-03-26 | Bauer Bros Co | Refiner plate clearance control system |
| US3847359A (en) * | 1973-12-14 | 1974-11-12 | Sprout Waldron & Co Inc | Disc type refiner with automatic plate spacing control |
| US4081147A (en) * | 1976-05-27 | 1978-03-28 | The Black Clawson Company | Reversible disk refiner plates |
| US4083503A (en) * | 1976-10-08 | 1978-04-11 | Beloit Corporation | Paper stock rotor axial position controlling and locking device |
| US4253613A (en) * | 1978-02-17 | 1981-03-03 | Reinhall Rolf Bertil | Method and apparatus for controlling the effect of the centrifugal force on the stock in pulp defibrating apparatus |
| SE422224B (en) * | 1978-08-07 | 1982-02-22 | Berggren Torsten L | MILLING MACHINE FOR TREATMENT OF FIBER SLAMPS, AS PAPER PAPER, AND PIECE OF MALGUDE, SUCH AS TREFLIS AND SPAN |
| US4283016A (en) * | 1979-03-16 | 1981-08-11 | Reinhall Rolf Bertil | Method and apparatus for controlling the effect of the centrifugal force on the stock in pulp defibrating apparatus |
| US4275852A (en) * | 1979-08-20 | 1981-06-30 | Asplund Arne J A | Apparatus for controlling the refining of fibrous pulp grist in a drum refiner |
| SE8302013L (en) * | 1983-04-12 | 1984-10-13 | Sunds Defibrator | DEVICE FOR MALAPPLANTS FOR REFINING LIGNOCELLULOSALLY MATERIAL |
| JPS62194795A (en) * | 1986-02-21 | 1987-08-27 | Nippon Telegr & Teleph Corp <Ntt> | Time division channel system |
| US4820980A (en) | 1987-05-04 | 1989-04-11 | Dodson Edgars Darryl | Gap, wear and tram measurement system and method for grinding machines |
| JP2811092B2 (en) * | 1989-09-05 | 1998-10-15 | 相川鉄工株式会社 | Operation method in double disc refiner for papermaking |
| CA2096271A1 (en) * | 1993-05-14 | 1994-11-15 | Thomas Arvidsson | Support for a stator of a refining machine |
| US5971307A (en) * | 1998-02-13 | 1999-10-26 | Davenport; Ricky W. | Rotary grinder |
| US5445328A (en) * | 1993-08-25 | 1995-08-29 | Andritz Sprout-Bauer, Inc. | Dual zone refiner with separated discharge flow control |
| US5813618A (en) * | 1995-11-28 | 1998-09-29 | Andritz Sprout-Bauer, Inc. | Continuous cyclindrical wood pulp refiner |
| US5707016A (en) * | 1996-07-01 | 1998-01-13 | Witsken; Anthony | Apparatus and methods for wet grinding |
| US5947394A (en) | 1997-10-09 | 1999-09-07 | Thermo Black Clawson Inc. | Paper pulp refiner control system and method |
| US5927628A (en) * | 1998-03-03 | 1999-07-27 | Dallas A. C. Horn & Co. | Grinding apparatus for foodstuffs |
| CA2327613A1 (en) | 1998-04-08 | 1999-10-14 | John J. Egan, Iii | Integrated paper pulp and process machinery having integrated drive and control and methods of use thereof |
| US20020070303A1 (en) * | 2000-12-12 | 2002-06-13 | J & L Fiber Services, Inc. | Adjustable refiner plate |
| JP3797909B2 (en) * | 2001-10-16 | 2006-07-19 | 相川鉄工株式会社 | Refiner and paper stirrer |
| FI118971B (en) * | 2002-07-02 | 2008-05-30 | Metso Paper Inc | Refiner |
| SE524792C2 (en) * | 2003-03-24 | 2004-10-05 | Daprox Ab | Method and sensor device for distance measurement between a stator and a rotor opposite to it |
-
2004
- 2004-06-08 JP JP2006533600A patent/JP4726796B2/en not_active Expired - Fee Related
- 2004-06-08 DE DE602004030906T patent/DE602004030906D1/en active Active
- 2004-06-08 EP EP04754655A patent/EP1631391B1/en not_active Revoked
- 2004-06-08 CN CNB2004800211435A patent/CN100566839C/en not_active Expired - Fee Related
- 2004-06-08 CA CA2528773A patent/CA2528773C/en not_active Expired - Fee Related
- 2004-06-08 WO PCT/US2004/018103 patent/WO2004111331A2/en active Application Filing
-
2005
- 2005-06-08 US US10/559,739 patent/US7694902B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN100566839C (en) | 2009-12-09 |
| DE602004030906D1 (en) | 2011-02-17 |
| JP2007501904A (en) | 2007-02-01 |
| JP4726796B2 (en) | 2011-07-20 |
| CA2528773C (en) | 2011-11-01 |
| US7694902B2 (en) | 2010-04-13 |
| WO2004111331A3 (en) | 2005-05-12 |
| US20060231649A1 (en) | 2006-10-19 |
| CN1826179A (en) | 2006-08-30 |
| EP1631391B1 (en) | 2011-01-05 |
| EP1631391A2 (en) | 2006-03-08 |
| EP1631391A4 (en) | 2007-08-01 |
| WO2004111331A2 (en) | 2004-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2528773A1 (en) | Self-aligning and actively compensating refiner stator plate system | |
| EP0418941B1 (en) | Method of maintaining a constant predetermined contact pressure on elements for cutting under water in granulator machines and relevant machine with control and actuation device for said pressure | |
| JP5473607B2 (en) | Electrohydraulic control device | |
| CA2490628A1 (en) | Method and system for active tip clearance control in turbines | |
| CA2613815A1 (en) | Apparatus for eliminating net drill bit torque and controlling drill bit walk | |
| KR20090073045A (en) | Electrical actuator | |
| AU3714199A (en) | Apparatus for putting sleeves onto conveyed articles | |
| CN202560636U (en) | Electronically controlled rotary-blade-adjustable axial-flow fan | |
| WO2003048612A3 (en) | Continuously variable transmission and method of controlling it | |
| CA2322097A1 (en) | Method and apparatus for controlling force fights in a rotating shaft | |
| CN102441875A (en) | Power tool and speed stabilizing control system thereof | |
| EP1597057B1 (en) | Roller adjustment apparatus for an extrusion mill | |
| US6209825B1 (en) | Low power loss electro hydraulic actuator | |
| US6305490B1 (en) | Steering valve arrangement of a hydraulic steering system | |
| WO2001094088A3 (en) | Arrangement on granulating devices | |
| JP2007524518A5 (en) | ||
| KR20070041789A (en) | Tiltable milling head with a built in automatic speed changer | |
| EP1795324A1 (en) | System for positioning a laminating cylinder in a calender | |
| EP1890042B1 (en) | Fan variable immersion system | |
| FI117701B (en) | Lift door control equipment comprises a control system which contains the operation data of the motor and controls motor units of different types with different components | |
| US20220220674A1 (en) | Tamper stroke adjustment | |
| WO1985001092A1 (en) | Apparatus for adjusting individual cams of a pusher conveyor | |
| SE507603C2 (en) | Method and apparatus for refining fiber material | |
| EP0481936A2 (en) | Method of and apparatus for continuously controlling the pressure applied on workpieces in a double-plate lapping machine | |
| KR200260163Y1 (en) | small press of utilize reducing speed moter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130610 |