CN101992281A - Method and device for measuring thickness of continuous casting blank shell - Google Patents
Method and device for measuring thickness of continuous casting blank shell Download PDFInfo
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- CN101992281A CN101992281A CN2009100133568A CN200910013356A CN101992281A CN 101992281 A CN101992281 A CN 101992281A CN 2009100133568 A CN2009100133568 A CN 2009100133568A CN 200910013356 A CN200910013356 A CN 200910013356A CN 101992281 A CN101992281 A CN 101992281A
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000005266 casting Methods 0.000 claims abstract description 10
- 238000004458 analytical method Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000205 computational method Methods 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to a method and a device for measuring the thickness of a continuous casting blank shell. The invention has high measurement precision and simple and convenient operation, can track and measure the thickness of the solidified shell of the actual casting blank, and the measurement result can provide sufficient basis for analyzing production and quality problems for continuous casting process personnel. The device has simple structure, convenient manufacture and installation, reasonable design of the measuring method and accurate analysis result. The method is particularly suitable for detecting the thickness of the blank shell of the arc-shaped continuous casting machine.
Description
Technical field
The invention belongs to the steel-making continuous casting technical field, relate in particular to a kind of method and device thereof of measuring the continuous casting billet thickness of the shell, be used to measure under the different technology conditions strand in the curdled appearance of a certain ad-hoc location.
Background technology
Shell thickness is the important parameter of continuous casting process process, because shell thickness can't be measured from the surface, therefore method in common is to adopt method of powder actuated shot at present.Promptly in the conticaster production process, utilize ail gun the steel nail of certain-length to be injected the strand inside of solidifying, treat strand solidify fully pull out conticaster after, the strand of nailing position is downcut, cut the section of nail position open, observe the nail pattern, conclude the nailing situation of strand solidified inside at that time.
Because casting machine structure and casting speed is different, especially for the conticaster that has arc, only takes nailing one time, can not describe the continuous Changing Pattern of casting blank shell; If take repeatedly the mode of nailing, then, the nailing of repeatedly injecting can't be fixed on same position exactly because strand is kept in motion.And ail gun can not move with strand, and the method and apparatus that therefore how to design nailing effectively is very important for the mensuration of slab thickness Changing Pattern.
Summary of the invention
Purpose of the present invention is exactly at above-mentioned defective, provides a kind of simple, safe and reliable, can exactly a plurality of nailings be injected the strand same position, thereby realizes accurately measuring the method and the device of shell thickness and the inner false set situation of reaction strand.
For this reason, the technical solution used in the present invention is:
A kind of continuous casting billet thickness of the shell measuring method is utilized at least two ail guns arranging continuously, makes the nailing of ejaculation concentrate on desired location constantly by accurate calculating and control shooting each time, realizes that the analysis back is to each accurate measurement of shell thickness constantly of strand.Its concrete grammar is:
1, nailing point is determined, the nailing position is chosen in apart between strand side 1/8～1/4 width.
2, first rifle is determined opportunity, with the position of flame cutting machine as nailing definite benchmark on opportunity, be to make nailing point be longer than the multiple lengths of strand slightly apart from the distance of flame cutting starting point the opportunity of launching first rifle, makes nailing be positioned at small range behind the strand cutting position.With flame cutting machine during from the distance travelled L of zero-bit be the shooting of first rifle constantly, then the computational methods of L are:
L＝B-(N-i)H-L
0
In the formula: B is strand multiple length, m, and N is the fan-shaped section sum, and i is the fan-shaped hop count of first rifle position, and H is fan-shaped section length, m, L
0Be distance, m between outlet of casting machine final stage and flame cutting machine traveling starting point.
3, position mark, after first nailing penetrated, immediately nailing was injected the position and is abandon the iron scale thing that serves as a mark on strand.
4, determine opportunity behind second rifle, adopts chronometry to determine opportunity from the second rifle emission; Each rifle time Transmission Time Interval is:
V is the conticaster casting speed.
5, treat strand solidify fully pull out conticaster after, the strand of nailing position is downcut, cut the section of nail position open, measure the continuous casting billet thickness of the shell, examine and determine each nailing strand solidified inside state constantly.
Continuous casting billet thickness of the shell measurement mechanism of the present invention is to be provided with two ail guns at least along continuous casting billet throwing direction, and each ail gun is fixed between adjacent two fan-shaped section successively by special carrier.
Described special carrier is made up of a seat body, foundation bolt and adjusting shim pack, be provided with the rifle hole at square seat body center, be evenly equipped with bolt hole around the rifle hole, square seat body is installed on foundation bolt respectively for four jiaos, and the foundation bolt lower end respectively connects the adjusting shim pack that can adjust the ail gun angle.
Beneficial effect of the present invention is:
Because the present invention determines the nailing time according to result of calculation, make the nailing that repeatedly penetrates can accurately be fixed on same position, and can adjust the nailing angle as required, realized control nailing angle on the fan-shaped section that tilts, reach the desirable effect of measuring.Therefore implement the present invention, can carry out tracking measurement the thickness of solidified slab shell in secondary of actual strand, the certainty of measurement height, easy and simple to handle, measurement result can be continuous casting process man analysis production and quality problems provide abundant foundation.Its apparatus structure is simple, is convenient to fabrication and installation, and measuring method is reasonable in design, and analysis result is accurate.The shell thickness that is particularly useful for circular-arc type continuous casting machine detects.
Description of drawings
Fig. 1 is an ail gun layout drawing of the present invention.
Fig. 2 is an ail gun perspective view of the present invention.
Among the figure: fan-shaped section 1, ail gun 2, trip bolt 3, foundation bolt 4, adjusting shim pack 5, a seat body 6.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
The embodiment service condition is: on the conticaster of a desk fan shape hop count amount N=15, fan-shaped section length is 1850mm, and the flame cutting machine traveling starting point of this conticaster exports L apart from casting machine
0=2m, strand multiple length B is 20m.
As seen from Figure 1, continuous casting billet thickness of the shell measurement mechanism of the present invention is to be made of 3 ail guns 2 along the setting of continuous casting billet throwing direction, and 3 ail guns 2 are to be fixed between adjacent two fan-shaped section 1 by special carrier is parallel successively.Fig. 2 shows that special carrier is made up of a seat body 6, foundation bolt 4 and adjusting shim pack 5.The global shape that props up seat body 6 is a foursquare flat board, is provided with a rifle hole in the center of a seat body 6, so that nailing is leant out a seat body 6.Be evenly equipped with 4 bolts hole around near the rifle hole, ail gun 2 be fixed in the special carrier by trip bolt 3.Four bights at square seat body 6 are respectively equipped with bolt hole, all flexibly connect a foundation foot bolt 4 in 4 bolts hole, the lower end of foundation bolt 4 then connects one group respectively and regulates shim pack 5, and adjusting shim pack 5 can be adjusted special carrier as required in 10 °～35 ° scopes be the angle of inclination of ail gun 2.
According to the design feature of conticaster and fan-shaped section 1, the present invention adopts three rifle formulas to arrange, first rifle is arranged between 1 section of the 6th, 7 fan-shaped section, i.e. and i=6, and first rifle special carrier be adjusted into and 30 ° of vertical direction angles; Second and third rifle is arranged between the 7th, 8 and the 8th, 9 fan-shaped section 1 successively, and second firearm support is adjusted into and 12 ° of vertical direction angles, and the 3rd rifle is arranged vertically.
According to measuring needs, the present invention with the nailing point selection in distance strand side 1/5 position, promptly apart from the strand side is-mm.
First rifle emission opportunity with the position of flame cutting machine as nailing definite benchmark on opportunity, be to make nailing point be longer than the multiple lengths of strand slightly apart from the distance of flame cutting starting point the opportunity of launching first rifle, make nailing be positioned at small range behind the strand cutting position, to reduce the waste that the strand sampling causes.According to computing formula:
L＝B-(N-i)H-L
0
Can be obtained by on-the-spot real data, all symbols are known conditions in the formula, i.e. L
0=2m, B are 20m, and N is 15, and i is 6, H=1.85m, the then length L=20-of flame cutting machine traveling (15-6) * 1.85-2=1.35m.Promptly, pull the trigger first rifle, launch first nailing when flame cutting machine during from zero-bit traveling 1.35m.
After first nailing penetrates, abandon iron scale and perform mark injecting the position rapidly.
Second gunslinging sent out constantly, and this moment, the conticaster casting speed was 1.1m/min, by each rifle time time interval computing formula
Second gunslinging to send out constantly be 1.85/1.1 * 60=101s behind first rifle.
It is 1.85/1.1 * 60=101s behind second rifle that the 3rd gunslinging sent out constantly.
After strand is pulled out conticaster, the strand of nailing position is downcut, and sampling Cutting Length is 300mm, cut open the nail position section and through dig grind after, the nail pattern is clear, can accurately measure continuous casting billet thickness of the shell and calibrating and analyze each nailing strand solidified inside situation constantly.
Claims (3)
1. continuous casting billet thickness of the shell measuring method, it is characterized in that, utilize at least two ail guns arranging continuously, shoot each time constantly by accurate calculating and control, make the nailing of ejaculation concentrate on desired location, realize that the analysis back is to each accurate measurement of shell thickness constantly of strand; Its concrete grammar is:
(1), nailing point determines that the nailing position is chosen in apart between strand side 1/8～1/4 width;
(2), first rifle is determined opportunity, with the position of flame cutting machine as nailing definite benchmark on opportunity, be to make nailing point be longer than the multiple lengths of strand slightly apart from the distance of flame cutting starting point the opportunity of launching first rifle, makes nailing be positioned at small range behind the strand cutting position; With flame cutting machine during from the distance travelled L of zero-bit be the shooting of first rifle constantly, then the computational methods of L are:
L＝B-(N-i)H-L
0
In the formula: B is strand multiple length, m, and N is the fan-shaped section sum, and i is the fan-shaped hop count of first rifle position, and H is fan-shaped section length, m, L
0Be distance, m between outlet of casting machine final stage and flame cutting machine traveling starting point;
(3), position mark, after first nailing penetrated, immediately nailing was injected the position and is abandon the iron scale thing that serves as a mark on strand;
(4), determine opportunity behind second rifle, adopts chronometry to determine opportunity from the second rifle emission; Each rifle time Transmission Time Interval is:
V is conticaster casting speed, m/s;
(5), treat strand solidify fully pull out conticaster after, the strand of nailing position is downcut, cut the section of nail position open, measure the continuous casting billet thickness of the shell, examine and determine each nailing strand solidified inside state constantly.
2. a continuous casting billet thickness of the shell measurement mechanism comprises ail gun, it is characterized in that, is provided with two ail guns at least along continuous casting billet throwing direction, and each ail gun is fixed between adjacent two fan-shaped section successively by special carrier.
3. continuous casting billet thickness of the shell measurement mechanism according to claim 2, it is characterized in that, described special carrier is made up of a seat body, foundation bolt and adjusting shim pack, be provided with the rifle hole at square seat body center, be evenly equipped with bolt hole around the rifle hole, square seat body is installed on foundation bolt respectively for four jiaos, and the foundation bolt lower end respectively connects the adjusting shim pack that can adjust the ail gun angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100133568A CN101992281B (en) | 2009-08-25 | 2009-08-25 | Method and device for measuring thickness of continuous casting blank shell |
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| CN2009100133568A CN101992281B (en) | 2009-08-25 | 2009-08-25 | Method and device for measuring thickness of continuous casting blank shell |
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| CN101992281A true CN101992281A (en) | 2011-03-30 |
| CN101992281B CN101992281B (en) | 2012-07-18 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500628A (en) * | 2011-11-13 | 2012-06-20 | 首钢总公司 | Method for accurately calibrating widening positions of casting blank during steel rolling |
| CN102519382A (en) * | 2011-12-22 | 2012-06-27 | 山东泰山钢铁集团有限公司 | Fixed point marking method for deformation detection of cold-rolled steel strip |
| CN103111594A (en) * | 2013-03-19 | 2013-05-22 | 北京科技大学 | Remotely controlled continuous casting billet nail jet device and method |
| CN104493121A (en) * | 2014-11-28 | 2015-04-08 | 东北大学 | Online detection method for solidified bottom end position in bloom continuous casting production process |
| CN105149537A (en) * | 2014-06-09 | 2015-12-16 | 鞍钢股份有限公司 | Bloom nail gun control device and method |
| CN105855495A (en) * | 2016-04-07 | 2016-08-17 | 马鞍山尚元冶金科技有限公司 | Determination method for casting blank solidification structure |
| CN106111933A (en) * | 2016-08-29 | 2016-11-16 | 安徽工程大学机电学院 | Accurately measure nailing stage apparatus and the operational approach thereof of continuous casting billet shell thickness |
| CN106141131A (en) * | 2015-03-27 | 2016-11-23 | 上海梅山钢铁股份有限公司 | It is accurately positioned the method for nailing position during continuous casting billet nailing |
| CN106289037A (en) * | 2016-07-19 | 2017-01-04 | 内蒙古科技大学 | A kind of continuous casting steel billet shell thickness eddy current detection method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101367115A (en) * | 2008-08-22 | 2009-02-18 | 武汉钢铁(集团)公司 | Casting blank liquid core length measuring method |
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2009
- 2009-08-25 CN CN2009100133568A patent/CN101992281B/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500628A (en) * | 2011-11-13 | 2012-06-20 | 首钢总公司 | Method for accurately calibrating widening positions of casting blank during steel rolling |
| CN102500628B (en) * | 2011-11-13 | 2013-10-30 | 首钢总公司 | Method for accurately calibrating widening positions of casting blank during steel rolling |
| CN102519382A (en) * | 2011-12-22 | 2012-06-27 | 山东泰山钢铁集团有限公司 | Fixed point marking method for deformation detection of cold-rolled steel strip |
| CN103111594A (en) * | 2013-03-19 | 2013-05-22 | 北京科技大学 | Remotely controlled continuous casting billet nail jet device and method |
| CN103111594B (en) * | 2013-03-19 | 2015-01-28 | 北京科技大学 | Remotely controlled continuous casting billet nail jet device and method |
| CN105149537A (en) * | 2014-06-09 | 2015-12-16 | 鞍钢股份有限公司 | Bloom nail gun control device and method |
| CN104493121A (en) * | 2014-11-28 | 2015-04-08 | 东北大学 | Online detection method for solidified bottom end position in bloom continuous casting production process |
| CN106141131A (en) * | 2015-03-27 | 2016-11-23 | 上海梅山钢铁股份有限公司 | It is accurately positioned the method for nailing position during continuous casting billet nailing |
| CN106141131B (en) * | 2015-03-27 | 2018-05-18 | 上海梅山钢铁股份有限公司 | It is accurately positioned the method for nailing position during continuous casting billet nailing |
| CN105855495A (en) * | 2016-04-07 | 2016-08-17 | 马鞍山尚元冶金科技有限公司 | Determination method for casting blank solidification structure |
| CN105855495B (en) * | 2016-04-07 | 2017-06-16 | 马鞍山尚元冶金科技有限公司 | A kind of determination method of casting blank solidification structure |
| CN106289037A (en) * | 2016-07-19 | 2017-01-04 | 内蒙古科技大学 | A kind of continuous casting steel billet shell thickness eddy current detection method |
| CN106289037B (en) * | 2016-07-19 | 2018-09-07 | 内蒙古科技大学 | A kind of continuous casting steel billet shell thickness eddy current detection method |
| CN106111933A (en) * | 2016-08-29 | 2016-11-16 | 安徽工程大学机电学院 | Accurately measure nailing stage apparatus and the operational approach thereof of continuous casting billet shell thickness |
| CN106111933B (en) * | 2016-08-29 | 2017-12-15 | 安徽工程大学机电学院 | The nailing stage apparatus and its operating method of accurate measurement continuous casting billet shell thickness |
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| CN101992281B (en) | 2012-07-18 |
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