CN103454109A - Withdrawal and straightening force fault diagnosis method of sector segment of continuous casting machine - Google Patents
Withdrawal and straightening force fault diagnosis method of sector segment of continuous casting machine Download PDFInfo
- Publication number
- CN103454109A CN103454109A CN2013103964377A CN201310396437A CN103454109A CN 103454109 A CN103454109 A CN 103454109A CN 2013103964377 A CN2013103964377 A CN 2013103964377A CN 201310396437 A CN201310396437 A CN 201310396437A CN 103454109 A CN103454109 A CN 103454109A
- Authority
- CN
- China
- Prior art keywords
- curve
- straightening force
- total
- straightening
- force curve
- 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
Images
Abstract
The invention relates to a withdrawal and straightening force fault diagnosis method of a sector segment of a continuous casting machine. The withdrawal and straightening force fault diagnosis method includes the steps that an equipment state parameter database of a withdrawal and straightening machine is set up; a withdrawal speed curve, a total withdrawing and straightening curve, a flow casting tracing curve and a hidden danger segment withdrawing and straightening curve are drawn respectively according to measured data. If first total withdrawal and straightening force and second total withdrawal and straightening force do not exceed the range of the corresponding total withdrawal and straightening force in the database, hidden danger does not exist, and diagnosis is over; and otherwise, existence of the hidden danger is confirmed and the next step is executed; stressed abnormal points are determined, and the stressed abnormal points are verified. With the adoption of the withdrawal and straightening force fault diagnosis method of the sector segment of the continuous casting machine, under the same working rate of the casting machine, due to the fact that the hidden danger existing in the sector segment can be found in advance, the stressed condition of a casting blank is greatly improved, the quality of the casting blank is greatly improved, the crack occurrence rate of crack-sensitive steel is lowered to 3.5%, the commuted amount is effectively reduced, and the fault time is effectively shortened. The withdrawal and straightening force fault diagnosis method of the sector segment of the continuous casting machine is simple in operation, high in sensitivity, timely in detection and precise in positioning.
Description
Technical field
The present invention relates to method for diagnosing faults, specifically continuous casting machine fan-shaped segment straightening power method for diagnosing faults.
Background technology
Stressed abnormity point in the identification continuous casting machine fan-shaped segment, and then the fault type of judgement continuous casting machine fan-shaped segment, for improving, the continuous casting billet force-bearing situation is most important.The stressed abnormal point checking method of existing continuous casting machine fan-shaped segment is the artificial visually examine, and the scope of examination is confined to that visual inspection roll surface wearing, bearing collapse, roller is stained with slag.The method can only shutdown inspection, and fault detect not in time; Have blind area, the bearing of metamerism roller collapses and is difficult to detect; Be not easy to find the fault of budding stage, often do not wait until when roller does not turn fully and just know.Therefore, design a kind of simple to operate, susceptibility is high, detection is timely, the continuous casting machine fan-shaped segment straightening power method for diagnosing faults of registration is very necessary.
Summary of the invention
The purpose of this invention is to provide a kind of simple to operate, susceptibility is high, detection is timely, the continuous casting machine fan-shaped segment straightening power method for diagnosing faults of registration.
For achieving the above object, the present invention adopts following technical scheme: continuous casting machine fan-shaped segment straightening power method for diagnosing faults, and its step is as follows:
S1. adopt industrial control software wincc to set up fault diagnosis system;
S1.1 sets up withdrawal straightening machine equipment status parameter database;
Total straightening power by the various different section strands to the conticaster cast is added up, and sets up the total straightening force data of withdrawal straightening machine storehouse;
S1.2 draws the pulling rate curve;
Take 0-3m/min as coordinate domain, according to measured data, draw respectively first-class pulling rate curve V1 and second pulling rate curve V2;
S1.3 draws total straightening force curve;
Take 0-1200kN as coordinate domain, according to measured data, draw respectively first-class total straightening force curve T1 and the total straightening force curve of second T2;
S1.4 draws casting stream curve of pursuit;
Take 0-35m as coordinate domain, according to measured data, draw respectively first-class casting stream curve of pursuit S1 and second casting stream curve of pursuit S2;
S1.5 draws hidden danger section straightening force curve;
Take 0-80kN as coordinate domain, according to measured data, draw hidden danger section straightening force curve F;
S2 checks whether hidden danger;
On first-class total straightening force curve T1, the total straightening force curve of the second T2 drawn at step S1.3, corresponding time t while finding first-class total straightening force curve T1 and the total straightening force curve of second T2 all to start to tend to be steady
1, read respectively t
1, if first-class total straightening power and the total straightening power of second all do not exceed in database corresponding total straightening power scope, there is not hidden danger in first-class total straightening power and the total straightening power of second at place, finishes diagnosis, otherwise determine and have hidden danger, carries out next step;
S3 determines stressed abnormity point;
If determining, S3.1 step S2 has hidden danger, in same interface, gather first-class total straightening force curve T1, the total straightening force curve of the second T2, first-class pulling rate curve V1, second pulling rate curve V2, first-class casting stream curve of pursuit S1, second casting stream curve of pursuit S2 and the hidden danger section straightening force curve F that start casting process, set coordinate range separately, time shaft for when inferior open water to open water after 45 minutes;
S3.2 is on the described interface of step S3.1, first-class total straightening force curve T1 and the total straightening force curve of second T2 are compared mutually, if wherein the slope of certain first-class total straightening force curve becomes suddenly large, slope becomes large starting point and confirms as the stressed abnormity point of this curve;
S3.3 is on the described interface of step S3.1, and the stressed abnormity point of the total straightening force curve of second T2 of confirming according to step S3.2, find corresponding time t
2, then on second casting stream curve of pursuit S2, read t
2corresponding numerical value, this numerical value is the exact position of stressed abnormity point;
S4 verifies stressed abnormity point;
On the described interface of step S3.1, the corresponding time t found according to step S3.3
2, then observe hidden danger section straightening force curve F above and t
2，Ruo Gai position, corresponding position has the peak value of sudden change to occur, has verified the exact position of the determined stressed abnormity point of step S3.3.
Adopt the present invention, under identical caster work rate, due to the hidden danger that can find in advance that fan-shaped section exists, greatly improved the strand force-bearing situation, slab quality is greatly improved, and the cracking frequency of crack-sensitivity steel grade is reduced to 3.5%, has effectively reduced the amount of changing the original sentence to and fault-time.The present invention is simple to operate, susceptibility is high, detection is timely, registration.
The accompanying drawing explanation
Fig. 1 is that first and second of the embodiment of the present invention one flows total straightening force curve schematic diagram;
Fig. 2 is that first and second of the embodiment of the present invention two flows total straightening force curve schematic diagram;
Fig. 3 is that first and second of the embodiment of the present invention two flows the relevant comparison diagram of total straightening force curve.
In figure: the first-class total straightening force curve of T1-; The total straightening force curve of T2-second; The first-class pulling rate curve of V1-; V2-second pulling rate curve; The first-class casting stream of S1-curve of pursuit; S2-second casting stream curve of pursuit; F-hidden danger section straightening force curve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but this embodiment should not be construed as limitation of the present invention:
Embodiment mono-
One, diagnosis object:
First and second stream is poured into a mould the strand of 230 * 1900 sections simultaneously.
Two, diagnostic method:
S1. adopt industrial control software wincc to set up fault diagnosis system;
S1.1 sets up withdrawal straightening machine equipment status parameter database;
Total straightening power by the various different section strands to the conticaster cast is added up, and sets up the total straightening force data of withdrawal straightening machine storehouse as shown in the table:
S1.2 draws the pulling rate curve;
Take 0-3m/min as coordinate domain, according to measured data, draw respectively first-class pulling rate curve V1 and second pulling rate curve V2;
S1.3 draws total straightening force curve;
Take 0-1200kN as coordinate domain, according to measured data, draw respectively first-class total straightening force curve T1 and the total straightening force curve of second T2;
S1.4 draws casting stream curve of pursuit;
Take 0-35m as coordinate domain, according to measured data, draw respectively first-class casting stream curve of pursuit S1 and second casting stream curve of pursuit S2;
S1.5 draws hidden danger section straightening force curve;
Take 0-80kN as coordinate domain, according to measured data, draw hidden danger section straightening force curve F;
S2 checks whether hidden danger;
As shown in Figure 1, while finding first-class total straightening force curve T1 and the total straightening force curve of second T2 all to start to tend to be steady in Fig. 1, the corresponding time is t for first-class total straightening force curve T1, the total straightening force curve of second T2 that step S1.3 draws
1=35min, read respectively t
1first-class total straightening power at=35min place and the total straightening power of second, first-class total straightening power is 898kN, and the total straightening power of second is 885kN, does not all exceed corresponding total straightening power scope (880kN～935kN) in database, therefore there do not is hidden danger, finish diagnosis.
Embodiment bis-
One, diagnosis object:
First and second stream is poured into a mould the strand of 230 * 1800 sections simultaneously.
Two, diagnostic method:
S1. identical with embodiment mono-;
S2 checks whether hidden danger;
As shown in Figure 2, while finding first-class total straightening force curve T1 and the total straightening force curve of second T2 all to start to tend to be steady in Fig. 2, the corresponding time is t for first-class total straightening force curve T1, the total straightening force curve of second T2 that step S1.3 draws
1=35min, read respectively t
1first-class total straightening power at=35min place and the total straightening power of second, first-class total straightening power is 845kN, the total straightening power of second is 910kN, wherein, the total straightening power of second has exceeded corresponding total straightening power scope (830kN-865kN) in database, therefore, can determine and have hidden danger, carry out next step;
S3.1 gathers first-class total straightening force curve T1, the total straightening force curve of second T2, first-class pulling rate curve V1, second pulling rate curve V2, first-class casting stream curve of pursuit S1, second casting stream curve of pursuit S2 and the hidden danger section straightening force curve F that starts casting process in same interface, set coordinate range separately, time shaft for when inferior open water to open water after 45 minutes, as shown in Figure 3;
S3.2, on the described interface of step S3.1, compares first-class total straightening force curve T1 and the total straightening force curve of second T2 mutually, finds that the slope of the total straightening force curve of second T2 is t in the time
2=8.42min place starts to become suddenly large, and this point is confirmed as the stressed abnormity point of the total straightening force curve of second T2;
S3.3 is on the described interface of step S3.1, and the stressed abnormity point of the total straightening force curve of second T2 of confirming according to step S3.2, find corresponding time t
2=8.42min then reads t on second casting stream curve of pursuit S2
2during=8.42min, corresponding numerical value is 10.8 meters, and the exact position of this point, in 4 sections of seconds, therefore determines that 4 sections of seconds are the hidden danger section;
S4 verifies stressed abnormity point;
On the described interface of step S3.1, the corresponding time t found according to step S3.3
2=8.42min, then observe hidden danger section straightening force curve F above and t
2the corresponding position of=8.42min, find that there is the peak value of obvious sudden change at this position, verified that 4 sections of seconds are real faulty section.
The content be not described in detail in this instructions, belong to the known prior art of those skilled in the art.
Claims (1)
1. continuous casting machine fan-shaped segment straightening power method for diagnosing faults, its step is as follows:
S1. adopt industrial control software wincc to set up fault diagnosis system;
S1.1 sets up withdrawal straightening machine equipment status parameter database;
Total straightening power by the various different section strands to the conticaster cast is added up, and sets up the total straightening force data of withdrawal straightening machine storehouse;
S1.2 draws the pulling rate curve;
Take 0-3m/min as coordinate domain, according to measured data, draw respectively first-class pulling rate curve V1 and second pulling rate curve V2;
S1.3 draws total straightening force curve;
Take 0-1200kN as coordinate domain, according to measured data, draw respectively first-class total straightening force curve T1 and the total straightening force curve of second T2;
S1.4 draws casting stream curve of pursuit;
Take 0-35m as coordinate domain, according to measured data, draw respectively first-class casting stream curve of pursuit S1 and second casting stream curve of pursuit S2;
S1.5 draws hidden danger section straightening force curve;
Take 0-80kN as coordinate domain, according to measured data, draw hidden danger section straightening force curve F;
S2 checks whether hidden danger;
On first-class total straightening force curve T1, the total straightening force curve of the second T2 drawn at step S1.3, corresponding time t while finding first-class total straightening force curve T1 and the total straightening force curve of second T2 all to start to tend to be steady
1, read respectively t
1, if first-class total straightening power and the total straightening power of second all do not exceed in database corresponding total straightening power scope, there is not hidden danger in first-class total straightening power and the total straightening power of second at place, finishes diagnosis, otherwise determine and have hidden danger, carries out next step;
S3 determines stressed abnormity point;
If determining, S3.1 step S2 has hidden danger, in same interface, gather first-class total straightening force curve T1, the total straightening force curve of the second T2, first-class pulling rate curve V1, second pulling rate curve V2, first-class casting stream curve of pursuit S1, second casting stream curve of pursuit S2 and the hidden danger section straightening force curve F that start casting process, set coordinate range separately, time shaft for when inferior open water to open water after 45 minutes;
S3.2 is on the described interface of step S3.1, first-class total straightening force curve T1 and the total straightening force curve of second T2 are compared mutually, if wherein the slope of certain first-class total straightening force curve becomes suddenly large, slope becomes large starting point and confirms as the stressed abnormity point of this curve;
S3.3 is on the described interface of step S3.1, and the stressed abnormity point of the total straightening force curve of second T2 of confirming according to step S3.2, find corresponding time t
2, then on second casting stream curve of pursuit S2, read t
2corresponding numerical value, this numerical value is the exact position of stressed abnormity point;
S4 verifies stressed abnormity point;
On the described interface of step S3.1, the corresponding time t found according to step S3.3
2, then observe hidden danger section straightening force curve F above and t
2，Ruo Gai position, corresponding position has the peak value of sudden change to occur, has verified the exact position of the determined stressed abnormity point of step S3.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396437.7A CN103454109B (en) | 2013-09-03 | 2013-09-03 | Continuous casting machine fan-shaped segment straightening power method for diagnosing faults |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396437.7A CN103454109B (en) | 2013-09-03 | 2013-09-03 | Continuous casting machine fan-shaped segment straightening power method for diagnosing faults |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103454109A true CN103454109A (en) | 2013-12-18 |
| CN103454109B CN103454109B (en) | 2015-12-23 |
Family
ID=49736724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310396437.7A Expired - Fee Related CN103454109B (en) | 2013-09-03 | 2013-09-03 | Continuous casting machine fan-shaped segment straightening power method for diagnosing faults |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103454109B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526437A (en) * | 1978-08-16 | 1980-02-25 | Hitachi Ltd | Anomaly diagnosing method |
| US20070156373A1 (en) * | 2004-01-21 | 2007-07-05 | Mitsubishi Denki Kabushiki Kaisha | Equipment diagnosis device, refrigerating cycle apparatus, fluid circuit diagnosis method, equipment monitoring system, and refrigerating cycle monitoring system |
| CN101592560A (en) * | 2009-06-19 | 2009-12-02 | 中冶赛迪工程技术股份有限公司 | A kind of sector section test bed |
| CN201524779U (en) * | 2009-11-06 | 2010-07-14 | 武汉钢铁(集团)公司 | Straightening-withdrawal machine speed detection processing system of continuous casting machine |
| CN102054179A (en) * | 2010-12-14 | 2011-05-11 | 广州大学 | Online state monitoring and fault diagnosis device and method for rotary machine |
| CN102072829A (en) * | 2010-11-04 | 2011-05-25 | 同济大学 | Iron and steel continuous casting equipment oriented method and device for forecasting faults |
| US20130132001A1 (en) * | 2010-07-23 | 2013-05-23 | Soumaya Yacout | Tool and method for fault detection of devices by condition based maintenance |
-
2013
- 2013-09-03 CN CN201310396437.7A patent/CN103454109B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526437A (en) * | 1978-08-16 | 1980-02-25 | Hitachi Ltd | Anomaly diagnosing method |
| US20070156373A1 (en) * | 2004-01-21 | 2007-07-05 | Mitsubishi Denki Kabushiki Kaisha | Equipment diagnosis device, refrigerating cycle apparatus, fluid circuit diagnosis method, equipment monitoring system, and refrigerating cycle monitoring system |
| CN101592560A (en) * | 2009-06-19 | 2009-12-02 | 中冶赛迪工程技术股份有限公司 | A kind of sector section test bed |
| CN201524779U (en) * | 2009-11-06 | 2010-07-14 | 武汉钢铁(集团)公司 | Straightening-withdrawal machine speed detection processing system of continuous casting machine |
| US20130132001A1 (en) * | 2010-07-23 | 2013-05-23 | Soumaya Yacout | Tool and method for fault detection of devices by condition based maintenance |
| CN102072829A (en) * | 2010-11-04 | 2011-05-25 | 同济大学 | Iron and steel continuous casting equipment oriented method and device for forecasting faults |
| CN102054179A (en) * | 2010-12-14 | 2011-05-11 | 广州大学 | Online state monitoring and fault diagnosis device and method for rotary machine |
Non-Patent Citations (2)
| Title |
|---|
| 王春等: "连铸机液压系统状态监测故障诊断", 《第一届全国流体动力及控制工程学术会议论文集（第二卷）》 * |
| 胡友民等: "连铸机旋转台在线监测与故障诊断系统", 《机电工程》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103454109B (en) | 2015-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110587377B (en) | Method for monitoring defects of milling cutter on line | |
| CN106649755B (en) | Threshold value self-adaptive setting abnormity detection method for multi-dimensional real-time power transformation equipment data | |
| CN105675274A (en) | Time-domain parameter and D-S evidence theory-based rotor running state monitoring method | |
| CN106352244A (en) | Pipeline leakage detection method based on hierarchical neural network | |
| CN104614386A (en) | Lens defects type identification method | |
| CN105458363A (en) | Highlight chamfering rework method of mobile phone appearance part | |
| CN103454109A (en) | Withdrawal and straightening force fault diagnosis method of sector segment of continuous casting machine | |
| CN113198853B (en) | Method and device for detecting profile defects of steel plate | |
| CN111451469B (en) | Method for judging state of continuous casting secondary cooling water nozzle | |
| CN110043497B (en) | Early warning method and system for automatic adjustment fault of fan | |
| CN106570072B (en) | Withdrawal straightening machine driven roller running state monitoring system and method for diagnosing faults | |
| CN103453846A (en) | Device and method for detecting strip steel end face shape on line | |
| CN110925182B (en) | Early warning method for vibration degradation of descaling pump of hot rolling production line | |
| CN104359920A (en) | Image processing method for apparent defect detection of thin-film capacitor | |
| JP2019200650A5 (en) | ||
| CN106694564B (en) | The control method of pinch roller interlock protection | |
| JP5817677B2 (en) | Detection device and detection method for setting state of continuous casting machine | |
| CN204054562U (en) | Intelligent water monitoring device and equipment | |
| EP2578335B1 (en) | Method for controlling a casting process device | |
| CN201596775U (en) | Online detection device for surface cracks of slabs | |
| JP6863449B2 (en) | How to operate casting equipment and operating equipment | |
| CN206235451U (en) | A kind of oil drum and PK optical performance test machines | |
| TWI783782B (en) | Tool Life Estimation Method for Individualized Cutting Machines | |
| CN104624985B (en) | A kind of sand mold on-line checking shift method of removable-flask moulding | |
| CN105268749B (en) | Tension force subtracts machine roller gap inclined-plane measurement apparatus and method surely |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170717 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20190903 |