CN102814482B - Cold state detecting method for water distribution of two cold nozzles of continuous casting machine - Google Patents
Cold state detecting method for water distribution of two cold nozzles of continuous casting machine Download PDFInfo
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- CN102814482B CN102814482B CN201210331647.3A CN201210331647A CN102814482B CN 102814482 B CN102814482 B CN 102814482B CN 201210331647 A CN201210331647 A CN 201210331647A CN 102814482 B CN102814482 B CN 102814482B
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Abstract
A cold state detecting method for water distribution of two cold nozzles of a continuous casting machine belongs to the technical field of metallurgy detecting analysis and is mainly used for detecting the water distribution of the two cold nozzles in a continuous casting process. Dimension proportion of a detecting device to an actual casting machine is 1:1, and the water distribution of a single or a plurality of nozzles in each sector section of two cold regions of the casting machine can be measured accurately. The detecting method is convenient to operate, high in measurement precision and close in combination with production parameters. Compared with the existing detecting method of the water distribution of the two cold nozzles of the continuous casting machine, the cold state detecting method has the advantages that working conditions identical with the field production parameters can be set, and accurate data results capable of directly guiding field production can be obtained.
Description
Technical field
The invention belongs to and belong to the metallurgical analysis technical field that detects, a kind of cold conditions detection method of caster two cold nozzle water distribution is particularly provided, be mainly used in the detection of di-cold spray nozzle water distribution in continuous casting steel machine process.
Background technology
The water distribution of caster two cold nozzle can affect surface and the internal soundness of strand.Thereby before actual production, it detects to the water distribution of di-cold spray nozzle, obtain rational nozzle characteristic distributions and parameter and arrange extremely important.
The water distribution detection method of di-cold spray nozzle mostly is manual detection at present, and the water yield being completed in rear water collector need to manually read, and workload is large, and error is large.Some device can be processed the result of catchmenting automatically, and still, mostly water collector is to fix, and can not move, and more can not move according to actual Casting speed.
Checkout equipment of the present invention and actual casting machine dimension scale are 1:1, and collection platform is identical with secondary cooling zone width, and the gait of march that pulling rate is collection platform can be set.Water distribution that can the single or multiple nozzles of each fan-shaped section of Measurement accuracy casting machine two cool regions.This detection method is easy to operate, certainty of measurement is high, be combined closely with manufacturing parameter.
Summary of the invention
The object of the present invention is to provide a kind of cold conditions detection method of caster two cold nozzle water distribution, can each fan-shaped section of Measurement accuracy casting machine two cool regions the water distribution of single and a plurality of nozzles.This detection method is easy to operate, certainty of measurement is high, be combined closely with manufacturing parameter.
Checkout equipment of the present invention and actual casting machine dimension scale are 1:1, and collection platform is identical with secondary cooling zone width, and the gait of march that pulling rate is collection platform can be set.Water distribution that can the single or multiple nozzles of each fan-shaped section of Measurement accuracy casting machine two cool regions.Characterization processes step is:
1, this detection is carried out on di-cold spray nozzle experiment porch, and this platform and actual plate billet continuous casting machine dimension scale are 1:1
2, according to test requests such as nozzle height, injector spacing, nozzle angles, nozzle to be measured is installed, maximum rows can install 6 nozzles simultaneously;
3, the working condition needing according to test, the parameter (Nm such as the hydraulic pressure (MPa) of setting nozzle, air pressure (MPa), discharge (l/min), throughput
3/ h), the range of each duty parameter is respectively: hydraulic pressure 0-1.6MPa, air pressure 0-1.0MPa, discharge 0-1000l/min, throughput 0-600 Nm
3/ h;
4, according to the pulling rate of actual casting process, the speed of service of collection platform is set, collection platform is walked by PLC+ driven by servomotor, and it is 0-50mm/ s that velocity interval can be set.Water leg width is suitable with secondary cooling zone casting machine width, can, in a running, collect the injection flow rate data of all nozzles.Automatic catch version is installed on water leg, and when collection platform enters water spray surveyed area, baffle plate is opened, and starts to collect the nozzle water yield, while walking out surveyed area, and flapper closure;
5, the displacement of collection platform is set, can complete inswept nozzle ejection scope being as the criterion, is traditionally arranged to be 180mm-230mm;
6, after being completed, the water of nozzle ejection is collected in collection platform in 104 collector pipes side by side, the water yield in each collector pipe after information distribution case, information isolation conditioning case are processed, input computer, carry out data analysis and process, obtain the water distribution characteristic pattern of nozzle.
The invention has the advantages that and can arrange and the on all four working condition of produced on-site parameter, the data result of obtain accurately, directly guide field being produced.
Accompanying drawing explanation
Fig. 1 is water distribution curvilinear characteristic figure.
The specific embodiment
Following example is used for setting forth the present invention, but protection scope of the present invention is not limited in following examples.
1. this time single row of nozzles is test in experiment, and totally three, nozzle height 252mm, injector spacing 700mm, nozzle water outlet direction is parallel to impulsive force dolly end face normal direction;
2. set hydraulic pressure 0.2MPa, air pressure 0.2MPa, discharge 6.65l/min, the throughput 37.01Nm of nozzle
3/ h;
3. the speed of service that collection platform is set is 0.6mm/s, and collection platform is walked by PLC+ driven by servomotor;
4. the displacement that collection platform is set is 200mm;
5. after being completed, the water of nozzle ejection is collected in collection platform in 104 collector pipes side by side, the water yield in each collector pipe after information distribution case, information isolation conditioning case are processed, input computer, carry out data analysis and process, obtain the water distribution characteristic pattern of nozzle.
Water distribution data:
| Lattice sequence number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Water yield percentage (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 70 | 84 | 81 | 80 |
| |
21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 |
| Water yield percentage (%) | 72 | 61 | 62 | 67 | 69 | 75 | 66 | 67 | 66 | 65 | 61 | 65 | 69 | 77 | 84 | 94 | 69 | 29 | 11 | 8 |
| Lattice sequence number | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 |
| Water yield percentage (%) | 13 | 48 | 61 | 44 | 36 | 37 | 33 | 27 | 30 | 35 | 40 | 42 | 48 | 47 | 46 | 45 | 46 | 48 | 51 | 53 |
| Lattice sequence number | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 |
| Water yield percentage (%) | 57 | 64 | 59 | 39 | 37 | 17 | 36 | 86 | 100 | 84 | 75 | 75 | 73 | 67 | 73 | 74 | 74 | 75 | 70 | 73 |
| Lattice sequence number | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 |
| Water yield percentage (%) | 68 | 65 | 62 | 61 | 67 | 76 | 93 | 73 | 23 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Lattice sequence number | 101 | 102 | 103 | 104 | ||||||||||||||||
| Water yield percentage (%) | 0 | 0 | 0 | 0 |
Claims (1)
1. a cold conditions detection method for caster two cold nozzle water distribution, is characterized in that, characterization processes step is:
1) detect and carry out on di-cold spray nozzle experiment porch, this platform and actual plate billet continuous casting machine dimension scale are 1:1;
2) according to test requests such as nozzle height, injector spacing, nozzle angles, nozzle to be measured is installed, maximum rows install 6 nozzles simultaneously;
3) working condition needing according to test, hydraulic pressure, air pressure, discharge, the throughput parameter of setting nozzle, the range of each duty parameter is respectively: hydraulic pressure 0-1.6MPa, air pressure 0-1.0MPa, discharge 0-1000L/min, throughput 0-600Nm
3/ h;
4) according to the pulling rate of actual casting process, the speed of service of collection platform is set, collection platform is walked by PLC+ driven by servomotor, and it is 0-50mm/s that velocity interval is set;
5) displacement of collection platform is set, complete inswept nozzle ejection scope being as the criterion, is set to 180mm-230mm;
6) after being completed, the water of nozzle ejection is collected in collection platform in 104 collector pipes side by side, the water yield in each collector pipe after information distribution case, information isolation conditioning case are processed, input computer, carry out data analysis and process, obtain the water distribution characteristic pattern of nozzle.
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| CN201210331647.3A CN102814482B (en) | 2012-09-07 | 2012-09-07 | Cold state detecting method for water distribution of two cold nozzles of continuous casting machine |
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| CN201210331647.3A CN102814482B (en) | 2012-09-07 | 2012-09-07 | Cold state detecting method for water distribution of two cold nozzles of continuous casting machine |
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| CN102814482B true CN102814482B (en) | 2014-04-02 |
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| CN103357834A (en) * | 2013-07-05 | 2013-10-23 | 苏州有色金属研究院有限公司 | Dual-cooling-space heat exchange coefficient measurement device used in casting process |
| CN109967711B (en) * | 2018-08-27 | 2021-02-26 | 中冶赛迪工程技术股份有限公司 | Online detection method for water flow density distribution of secondary cooling area of continuous casting machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008055650A1 (en) * | 2008-10-29 | 2010-05-06 | Sms Siemag Aktiengesellschaft | Method for minimizing energy demand and carbon dioxide ejection in a continuous furnace arranged downstream to a thin-slab plant, comprises entering material dependent cool strategy and threshold value in model calculator |
| CN102407309A (en) * | 2011-11-21 | 2012-04-11 | 河北钢铁股份有限公司邯郸分公司 | Secondary-cooling on-line measurement method for continuous casting machine and special device |
| CN102416456A (en) * | 2011-12-14 | 2012-04-18 | 武汉钢铁(集团)公司 | Secondary cooling control system for continuous casting of plate blank and method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008055650A1 (en) * | 2008-10-29 | 2010-05-06 | Sms Siemag Aktiengesellschaft | Method for minimizing energy demand and carbon dioxide ejection in a continuous furnace arranged downstream to a thin-slab plant, comprises entering material dependent cool strategy and threshold value in model calculator |
| CN102407309A (en) * | 2011-11-21 | 2012-04-11 | 河北钢铁股份有限公司邯郸分公司 | Secondary-cooling on-line measurement method for continuous casting machine and special device |
| CN102416456A (en) * | 2011-12-14 | 2012-04-18 | 武汉钢铁(集团)公司 | Secondary cooling control system for continuous casting of plate blank and method |
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Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: Capital Iron & Steel General Company |
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