CN105537543A - Closed-loop control system for taper of crystallizer - Google Patents
Closed-loop control system for taper of crystallizer Download PDFInfo
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- CN105537543A CN105537543A CN201610057902.8A CN201610057902A CN105537543A CN 105537543 A CN105537543 A CN 105537543A CN 201610057902 A CN201610057902 A CN 201610057902A CN 105537543 A CN105537543 A CN 105537543A
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- China
- Prior art keywords
- crystallizer
- gripper shoe
- closed
- screw mechanism
- loop control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/057—Manufacturing or calibrating the moulds
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention provides a closed-loop control system for the taper of a crystallizer. The closed-loop control system comprises a crystallizer narrow side copper plate and a supporting plate. The crystallizer narrow side copper plate and copper plate back plates are fastened together through screws, and the copper plate back plates are wedged together by the supporting plate through two toothed embedded blocks. The upper end of the supporting plate is connected with an upper lead screw mechanism, and the lower end of the supporting plate is connected with a lower lead screw mechanism. The upper lead screw mechanism and the lower lead screw mechanism are hinged to the supporting plate through pin shafts. The upper lead screw mechanism is connected with an upper worm speed reducer, and the lower lead screw mechanism is connected with a lower worm speed reducer. An upper tilt angle sensor is arranged on the upper portion of the front end of the supporting plate, and a lower tilt angle sensor is arranged on the lower portion of the front end of the supporting plate. According to the system, the taper of the narrow side of the crystallizer can be reflected accurately and directly, the closed-loop control system is composed of a controller device and a servo motor or a hydraulic cylinder through taper signals detected by the tilt angle sensors, the taper of the crystallizer can be adjusted online in real time and displayed in real time, and the most visual reference is given to producers.
Description
Technical field
The invention belongs to metallurgical continuous casting apparatus field, particularly a kind of conical degree of crystallizer closed-loop control system.
Background technology
In modern steel production enterprise, continuous casting is one of them very important link formed a connecting link.Crystallizer equipment is then an abnormal important key equipment in this link.Because different steel grades has shrinkage characters different separately when solidification shrinkage, the stability of the security that conical degree of crystallizer is produced continuous casting and slab quality plays key effect, is therefore gone out by binding isotherm and practice summary: stable conical degree of crystallizer keeps stable very important aborning.Up to now, conical degree of crystallizer continous-stable problem is the technical barrier being difficult in continuous casting production process overcome always.The control method of current conical degree of crystallizer, from the difference regulating power resources, can be divided into three kinds of regulative modes: manual adjustments, and servomotor regulates and hydraulic cylinder regulates.Divide from detection tapering element and have two kinds: displacement transducer and encoder, but its measurement is in the nature the indirect method of measurement.Industry great majority understanding is that the mechanical clearance that in regulating system, several transmission link occurs cannot be eliminated completely simultaneously, therefore makes the tapering of crystallizer there is drifting problem (be commonly called as and run cone).The essential defect of above method is: 1. the drive gap in plant equipment and the wearing and tearing between parts can not be accomplished " zero eliminates " completely; 2. the measurement indirectly measurement of conical degree of crystallizer, is and utilizes the intermediate member of transmission or the measurement of end component and then converse.The present invention is based on some understanding above, propose new control method, carry out head it off from the direct-detection of tapering.
Summary of the invention
In order to overcome, conical degree of crystallizer in existing system can not directly be measured, the drive gap in plant equipment and the wearing and tearing between parts can not accomplish the problem of " zero eliminates " completely, the invention provides a kind of conical degree of crystallizer closed-loop control system, thus conical degree of crystallizer can be detected continuously, accurately.Use hydraulic cylinder is controlled, or Serve Motor Control there is no particular/special requirement.Conical degree of crystallizer is measured accurately, and be the direct method of measurement, the control that the conical degree of crystallizer recorded not only may be used for Static and dynamic is used, is also fabulous crystallizer on-line monitoring.Equipment cost is low, is obviously better than the cost of displacement transducer.
The technical solution used in the present invention is:
Conical degree of crystallizer closed-loop control system, comprises mould at narrow copper coin and gripper shoe, mould at narrow copper coin and copper coin backboard by screw fastening to together with, gripper shoe is combined together copper coin backboard wedge by two dental inlay blocks; The upper and lower two ends of described gripper shoe are connected to upper spindle mechanism and bottom screw mechanism, upper spindle mechanism and bottom screw mechanism by bearing pin and gripper shoe hinged, upper spindle mechanism and bottom screw mechanism are connected to top worm speed reducer and bottom worm speed reducer; The upper and lower of gripper shoe front end is separately installed with top obliquity sensor and bottom obliquity sensor.
Described gripper shoe upper and lower side is provided with crystallizer foot roll.
Described crystallizer foot roll is installed in gripper shoe by bolt.
Described upper spindle mechanism and bottom screw mechanism are together with key installs to respectively with top worm speed reducer with bottom worm speed reducer.
Described top obliquity sensor and bottom obliquity sensor are installed in gripper shoe by screw.
Beneficial effect of the present invention is:
By being installed on the obliquity sensor in mould at narrow gripper shoe, the tapering of mould at narrow copper coin can be detected in real time, thus carry out online adjustment and detection real-time on computers.Have investment reduction, flexible adjustment, structure is simple, the advantage that accuracy of detection is high.
Conical degree of crystallizer is measured accurately, and be the direct method of measurement, the control that the conical degree of crystallizer recorded not only may be used for Static and dynamic is used, is also fabulous crystallizer on-line monitoring.Equipment cost is low, is obviously better than the cost of displacement transducer.
Accompanying drawing explanation
Below in conjunction with example figure, the invention will be further described:
Fig. 1 is the structural representation of conical degree of crystallizer closed-loop control system.
In figure, Reference numeral: 1, mould at narrow copper coin; 2, gripper shoe; 3, top obliquity sensor; 4, upper spindle mechanism; 5, top worm speed reducer; 6, bottom worm speed reducer; 7, bottom screw mechanism; 8, bottom obliquity sensor; 9, crystallizer foot roll.
Detailed description of the invention
Embodiment 1:
In order to overcome, conical degree of crystallizer in existing system can not directly be measured, the drive gap in plant equipment and the wearing and tearing between parts can not accomplish the problem of " zero eliminates " completely, the invention provides a kind of conical degree of crystallizer closed-loop control system as shown in Figure 1, thus conical degree of crystallizer can be detected continuously, accurately.Use hydraulic cylinder is controlled, or Serve Motor Control there is no particular/special requirement.Conical degree of crystallizer is measured accurately, and be the direct method of measurement, the control that the conical degree of crystallizer recorded not only may be used for Static and dynamic is used, and its equipment cost is low, is obviously better than the cost of displacement transducer.
Conical degree of crystallizer closed-loop control system, comprises mould at narrow copper coin 1 and gripper shoe 2, mould at narrow copper coin 1 and copper coin backboard by screw fastening to together with, gripper shoe 2 is combined together copper coin backboard wedge by two dental inlay blocks; It is characterized in that: described gripper shoe about 2 two ends are connected to upper spindle mechanism 4 and bottom screw mechanism 7, upper spindle mechanism 4 and bottom screw mechanism 7 by bearing pin and gripper shoe 2 hinged, upper spindle mechanism 4 and bottom screw mechanism 7 are connected to top worm speed reducer 5 and bottom worm speed reducer 6; The upper and lower of gripper shoe 2 front end is separately installed with top obliquity sensor 3 and bottom obliquity sensor 8.
As shown in Figure 1, by the Real-time Feedback of top obliquity sensor 3 and bottom obliquity sensor 8 two obliquity sensors, the tapering of mould at narrow copper coin 1 is passed in signal pickup assembly.Then controller is by sequential operation, closed-loop adjustment driving mechanism servomotor or hydraulic cylinder, thus drives mould at narrow copper coin 1 to run to suitable tapering position.
The gripper shoe 2 of mould at narrow copper coin 1 is installed top obliquity sensor 3 and bottom obliquity sensor 8 two obliquity sensors.Two obliquity sensors can detect the tapering of mould at narrow copper coin 1 accurately.Gripper shoe about 2 after mould at narrow copper coin 1 respectively installs an obliquity sensor, is received in the terminal box of device external by high temperature-resistant cable.When crystallizer carries out in casting, frequently vibrate with shaking according to the amplitude of technique initialization.Now be contained in gripper shoe 2 obliquity sensor below will continuously the tapering of crystallizer be detected, and transfer signals to harvester, control program can carry out real-time online to the tapering of the tapering detected and setting and compare, according to the tapering difference signal detected in real time, carry out real-time dynamic conditioning tapering by the control program of correspondence.This action is by closed-loop control, and the soft clip power simultaneously in conjunction with mould at narrow controls to implement.
Embodiment 2:
On basis based on embodiment 1, in the present embodiment, in described gripper shoe, 2 lower ends are provided with crystallizer foot roll 9.
Described crystallizer foot roll 9 is installed in gripper shoe 2 by bolt.
Described upper spindle mechanism 4 and bottom screw mechanism 7 are together with key installs to respectively with top worm speed reducer 5 with bottom worm speed reducer 6.
Described top obliquity sensor 3 and bottom obliquity sensor 8 are installed in gripper shoe 2 by screw.
Top obliquity sensor 3 and bottom obliquity sensor 8 measure directly and precision is high, portable strong, can be used for the transformation and upgrade of equipment.
By being installed on the obliquity sensor in mould at narrow gripper shoe 2, the tapering of mould at narrow copper coin can be detected in real time, thus carry out online adjustment and detection real-time on computers.Have investment reduction, flexible adjustment, structure is simple, the advantage that accuracy of detection is high.
Upper spindle mechanism 4 in the present invention and bottom screw mechanism 7 are existing screw mechanism, the gripper shoe 2 of mould at narrow copper coin 1 are installed top obliquity sensor 3 and bottom obliquity sensor 8.Two obliquity sensors can detect the tapering of mould at narrow copper coin 1 accurately.Gripper shoe about 2 after mould at narrow copper coin 1 respectively installs an obliquity sensor, is received in the terminal box of device external by high temperature-resistant cable.When crystallizer carries out in casting, frequently vibrate with shaking according to the amplitude of technique initialization.Now be contained in gripper shoe 2 obliquity sensor below will continuously the tapering of crystallizer be detected, and transfer signals to harvester, control program can carry out real-time online to the tapering of the tapering detected and setting and compare, according to the tapering difference signal detected in real time, carry out real-time dynamic conditioning tapering by the control program of correspondence.This action is by closed-loop control, and the soft clip power simultaneously in conjunction with mould at narrow controls to implement.
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (5)
1. conical degree of crystallizer closed-loop control system, comprises mould at narrow copper coin (1) and gripper shoe (2), and mould at narrow copper coin (1) and copper coin backboard are by screw fastening to together, and gripper shoe (2) is combined together copper coin backboard wedge by two dental inlay blocks; It is characterized in that: described gripper shoe (2) is connected to upper spindle mechanism (4) and bottom screw mechanism (7) in two ends up and down, upper spindle mechanism (4) and bottom screw mechanism (7) by bearing pin and gripper shoe (2) hinged, upper spindle mechanism (4) and bottom screw mechanism (7) are connected to top worm speed reducer (5) and bottom worm speed reducer (6); The upper and lower of gripper shoe (2) front end is separately installed with top obliquity sensor (3) and bottom obliquity sensor (8).
2. conical degree of crystallizer closed-loop control system according to claim 1, is characterized in that: in described gripper shoe, (2) lower end is provided with crystallizer foot roll (9).
3. conical degree of crystallizer closed-loop control system according to claim 2, is characterized in that: described crystallizer foot roll (9) is installed in gripper shoe (2) by bolt.
4. conical degree of crystallizer closed-loop control system according to claim 1, is characterized in that: described upper spindle mechanism (4) and bottom screw mechanism (7) and bottom worm speed reducer (6) and top worm speed reducer (5) are together with key installs to respectively.
5. conical degree of crystallizer closed-loop control system according to claim 1, is characterized in that: described top obliquity sensor (3) and bottom obliquity sensor (8) are installed in gripper shoe (2) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057902.8A CN105537543A (en) | 2016-01-28 | 2016-01-28 | Closed-loop control system for taper of crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057902.8A CN105537543A (en) | 2016-01-28 | 2016-01-28 | Closed-loop control system for taper of crystallizer |
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| Publication Number | Publication Date |
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| CN105537543A true CN105537543A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610057902.8A Pending CN105537543A (en) | 2016-01-28 | 2016-01-28 | Closed-loop control system for taper of crystallizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336979A (en) * | 2020-03-18 | 2020-06-26 | 武汉理工大学 | Taper measuring instrument |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726766Y (en) * | 2004-04-30 | 2005-09-21 | 中冶赛迪工程技术股份有限公司 | Width-adjusting arrangement for mold |
| CN201438148U (en) * | 2009-03-17 | 2010-04-14 | 上海梅山钢铁股份有限公司 | Simulation load device for crystallizer width adjusting detection |
| CN201900236U (en) * | 2010-12-14 | 2011-07-20 | 中冶京诚工程技术有限公司 | Manually mechanical type narrow side width adjusting device of crystallizer |
| JP2011224583A (en) * | 2010-04-16 | 2011-11-10 | Jfe Steel Corp | Method for determining centerline segregation of continuously cast slab |
| CN104439143A (en) * | 2014-11-13 | 2015-03-25 | 中冶连铸技术工程有限责任公司 | Method and device for dynamically maintaining conicity of narrow face of slab crystallizer on line |
| CN205324669U (en) * | 2016-01-28 | 2016-06-22 | 中国重型机械研究院股份公司 | Crystallizer tapering closed loop control system |
-
2016
- 2016-01-28 CN CN201610057902.8A patent/CN105537543A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726766Y (en) * | 2004-04-30 | 2005-09-21 | 中冶赛迪工程技术股份有限公司 | Width-adjusting arrangement for mold |
| CN201438148U (en) * | 2009-03-17 | 2010-04-14 | 上海梅山钢铁股份有限公司 | Simulation load device for crystallizer width adjusting detection |
| JP2011224583A (en) * | 2010-04-16 | 2011-11-10 | Jfe Steel Corp | Method for determining centerline segregation of continuously cast slab |
| CN201900236U (en) * | 2010-12-14 | 2011-07-20 | 中冶京诚工程技术有限公司 | Manually mechanical type narrow side width adjusting device of crystallizer |
| CN104439143A (en) * | 2014-11-13 | 2015-03-25 | 中冶连铸技术工程有限责任公司 | Method and device for dynamically maintaining conicity of narrow face of slab crystallizer on line |
| CN205324669U (en) * | 2016-01-28 | 2016-06-22 | 中国重型机械研究院股份公司 | Crystallizer tapering closed loop control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336979A (en) * | 2020-03-18 | 2020-06-26 | 武汉理工大学 | Taper measuring instrument |
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Application publication date: 20160504 |
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