CN102322803B - Steel blank length-measurement positioning system - Google Patents
Steel blank length-measurement positioning system Download PDFInfo
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- CN102322803B CN102322803B CN 201110231640 CN201110231640A CN102322803B CN 102322803 B CN102322803 B CN 102322803B CN 201110231640 CN201110231640 CN 201110231640 CN 201110231640 A CN201110231640 A CN 201110231640A CN 102322803 B CN102322803 B CN 102322803B
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Abstract
The invention relates to a steel blank length-measurement positioning system, which belongs to the field of a steel bank entering furnace system, and comprises an end part detector, a distance detector and a signal processing and control system, wherein the end part detector is arranged at the outer side of an entering furnace roller way, and the end part detector and the distance detector are respectively connected with the signal processing and control system. The steel blank length-measurement positioning system is characterized in that the distance detector and the entering furnace roller way are arranged at either the left end or the right end of the entering furnace roller way at intervals and are positioned on the extending line of the center line of the corresponding end of the entering furnace roller passage. The steel blank length-measurement positioning system can be used for precisely measuring the steel blank length and completing the steel blank entering furnace aligning, so the centering arrangement of steel blanks in a furnace in the furnace width direction is ensured, the load of a support component in the furnace is uniform, the distances from both ends of the steel blanks to the furnace walls of the two sides are identical, the accidents such as deflection wall collision and the like can be reduced to the maximum degree, the adopted equipment is simple, the use range is wide, the steel blank length-measurement positioning system is applicable to the new building or reformation of various heat treatment furnaces and steel milling heating furnaces with precise steel blank length-measurement and aligned entering furnace requirements, the investment is low, the construction period is short, and the equipment maintenance is simple.
Description
Technical field
The present invention relates to steel billet and go into furnace system, the stokehold that is specifically related to various continous way heater for rolling steel, heat-treatment furnace is used for steel billet is surveyed the control system of long location and centering.
Background technology
For the various heater for rolling steel of present steel plant, heat-treatment furnace, especially continous way heater for rolling steel, heat-treatment furnace, usually need steel billet in stove, to arrange between two parties along the stove cross direction, so that stove inner bracing member load is even, steel billet two ends and both sides furnace wall hit accidents such as wall apart from equalization with maximum minimizing sideslip.In order to adjust the heating furnace production capacity, need accurately to measure steel billet length simultaneously.Be to realize this purpose, need go into the stokehold at steel billet and finish and survey long, centering work, thus guarantee steel billet go into stove between two parties.
At present, go into stokehold survey length, centering work for how finishing steel billet, usually adopt the way of metal detector+scrambler in the industry, namely scrambler is installed going into the furnace roller road, metering roller-way revolution is going into a certain position installation in furnace roller road cold/hot metal detector (being commonly called as photoelectric tube), to detect the steel billet position, photoelectric tube and scrambler cooperating are finished steel billet and are gone into stokehold survey length, centering work.Owing to reasons such as steel billet skid when roller-way is advanced, roller-way weares and teares, encoder roller/non-encoder roller rotating speed is inconsistent, this method precision is relatively poor, and it is more of a specified duration especially to come into operation, and precision is more poor, can not satisfy long, the centering requirement of survey that industry improves day by day.
Summary of the invention
The technical problem to be solved in the present invention is: propose a kind of detect length of billets positioning system at the problems referred to above, this system can accurately survey long location and centering control to steel billet in the stokehold, and the assurance steel billet is gone into stove between two parties; Being applicable to variously has steel billet accurately to survey heater for rolling steel, heat-treatment furnace long, that centering is gone into the stove requirement, is particularly useful for various continous way heater for rolling steel, continuous heat-treating drier.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
The detect length of billets positioning system comprises termination detecting device, distance detector, and signal is handled and control system, and the termination detecting device is arranged on into the outside, furnace roller road, and the termination detecting device is all handled with signal with distance detector and is connected with control system; It is characterized in that described distance detector and go into the furnace roller road and leave and be spaced apart and arranged in the arbitrary end in the two ends, the left and right sides, furnace roller road and be positioned on the center line extended line of furnace roller road respective end.
By technique scheme, when distance detector was positioned on the furnace roller road left end center line extended line, the distance detector detection faces was relative with steel billet head end moving direction.
By technique scheme, the spacing of described distance detector and stove center line is L2.
By technique scheme, when distance detector is positioned on the furnace roller road left end center line extended line, when the distance detector detection faces is relative with steel billet head end moving direction; Arrive trigger end head detecting device when the steel billet head end moves, when length was Ld1 between steel billet head end and the distance detector, signal was handled with control system and is obtained the rising edge signal that the termination detecting device sends, and the measured length L d1 of record distance detector; Then steel billet continues to move to distance detector place end, the steel billet afterbody arrives when triggering the termination detecting device again, length is Ld2 between steel billet head end and the distance detector, signal is handled with control system and is obtained the negative edge signal that the termination detecting device sends, and the measured length L d2 of record distance detector this moment; Signal is handled and calculated steel billet length L s with control system is Ld2-Ld1, finishes detect length of billets work this moment.
By technique scheme, after finishing detect length of billets work, steel billet continues to move to distance detector place end, when the length value L c between steel billet head end and the distance detector is L-Ls/2, signal is handled with control system and is obtained the measured length value signal of distance detector and transmit into furnace roller road stall signal, the steel billet center line is consistent with the stove center line, and this moment, steel billet centering was finished.
By technique scheme, when distance detector was positioned on the furnace roller road right-hand member center line extended line, the distance detector detection faces was consistent with steel billet head end moving direction.
By technique scheme, described distance detector is laser range finder; Described termination detecting device is metal detector.
By technique scheme, described distance detector is the technical grade laser range finder; Described termination detecting device is metal detector.
Principle of the present invention is:
By laser range finder, monitor steel billet in real time in the position of going on the furnace roller road, the complexed metal detecting device is finished steel billet and is gone into the long location of stokehold survey; By being installed at the metal detector of going on the furnace roller road, determine steel billet head and the tail two ends by the time point of this given position, according to the time difference and laser range finder measured value, calculate steel billet length and finish stokehold location work; Signal is handled the signal that receives laser range finder and metal detector with control system, and signal is carried out A/D change, carrying out logic for system judges, judge by signal processing, logic, system sends control signal to charging roller table and dress steel system, calculate steel billet length, return to host computer, and finish centering and go into stove.
The relative prior art of the present invention has following beneficial effect:
1) adopted laser range finder and metal detector to match, can accurately measure steel billet length, thereby go into stove for steel billet centering necessary condition is provided, simultaneously can provide accurate production data for heating furnace or heat-treatment furnace production, be conducive to accurately determine the stove production capacity, be conducive to steel rolling mill and blank supplier's accurate clearing.
2) when accurately surveying length, can finish steel billet accurately and go into stove centering, thereby the assurance steel billet is arranged between two parties along the stove cross direction in stove, make that stove inner bracing member load is even, steel billet two ends and both sides furnace wall farthest reduce sideslip and hit accidents such as wall apart from equalization.
3) equipment that adopts is simple, and usable range is extensive, and being applicable to variously has steel billet accurately to survey the newly-built of the heater for rolling steel long, that centering is gone into the stove requirement, heat-treatment furnace or transform, and invest for a short time, and the construction period lacks, and plant maintenance is simple.
Description of drawings
In order to understand the present invention better, be described further below in conjunction with drawings and Examples.
Fig. 1 is the initial position figure of steel billet in the system of one embodiment of the invention;
Fig. 2 begins to survey the long location drawing for steel billet in the system of Fig. 1;
The location drawing that Fig. 3 finishes for detect length of billets in the system of Fig. 1;
Fig. 4 finishes figure for steel billet centering in the system of Fig. 1.
In the accompanying drawing, 1-metal detector, 2-laser range finder, 3-steel billet.
Embodiment
As shown in Figure 1, the stove inner width is made as W, and metal detector 1 and stove centreline spacing are made as L1, and laser range finder 2 and stove centreline spacing are made as L2; Metal detector 1 is arranged on into the outside, furnace roller road, and metal detector 1 is all handled with signal with laser range finder 2 and is connected with control system; It is characterized in that described laser range finder 2 and go into the furnace roller road and leave on the center line extended line that is spaced apart and arranged in furnace roller road left end that laser range finder 2 detection faces are relative with steel billet head end moving direction.
When metal detector 1 scans steel billet 3 heads, length is Ld1 between steel billet head end and the laser range finder 2, and signal is handled with control system and obtained the rising edge signal that metal detector 1 sends, and the measured length L d1 of recording laser stadimeter 2, as shown in Figure 2; Then steel billet 3 continues to move to laser range finder 2 place ends, the steel billet afterbody arrives when triggering metal detector 1 again, length is Ld2 between steel billet head end and the laser range finder 2, signal is handled with control system and is obtained the negative edge signal that metal detector 1 sends, and the measured length L d2 of laser range finder 2 record this moment, signal is handled and calculated steel billet length L s with control system is Ld2-Ld1, as shown in Figure 3;
After finishing steel billet 3 survey farm labourers works, steel billet 3 continues to move to laser range finder 2 place ends, when the length value between steel billet head end and the laser range finder 2 is Lc, Lc=L-Ls/2, signal is handled with control system and is obtained the measured length value signal of laser range finder 2 and transmit into furnace roller road stall signal, steel billet 3 center lines are consistent with the stove center line, and this moment, steel billet 3 centerings were finished, as shown in Figure 4.
The laser range finder 2 that adopts is the technical grade laser range finder.
Also can make laser range finder 2 leave and be spaced apart and arranged on the furnace roller road right-hand member center line extended line with going into the furnace roller road among other embodiment, and make laser range finder 2 detection faces consistent with steel billet head end moving direction simultaneously; At this moment, each length computation principle similarly.
Above disclosed only is preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalence of doing according to the present patent application claim changes, and still belongs to protection scope of the present invention.
Claims (9)
1. the detect length of billets positioning system comprises termination detecting device, distance detector, and signal is handled and control system, and the termination detecting device is arranged on into the outside, furnace roller road, and the termination detecting device is all handled with signal with distance detector and is connected with control system; It is characterized in that described distance detector and go into the furnace roller road and leave and be spaced apart and arranged in the arbitrary end in the two ends, the left and right sides, furnace roller road and be positioned on the center line extended line of furnace roller road respective end; When distance detector was positioned on the furnace roller road left end center line extended line, the distance detector detection faces was relative with steel billet head end moving direction.
2. system according to claim 1, the spacing that it is characterized in that described distance detector and stove center line is L2.
3. system according to claim 1 and 2, it is characterized in that arriving trigger end head detecting device when the steel billet head end moves, when length is Ld1 between steel billet head end and the distance detector, signal is handled with control system and is obtained the rising edge signal that the termination detecting device sends, and the measured length L d1 of record distance detector; Then steel billet continues to move to distance detector place end, the steel billet afterbody arrives when triggering the termination detecting device again, length is Ld2 between steel billet head end and the distance detector, signal is handled with control system and is obtained the negative edge signal that the termination detecting device sends, and the measured length L d2 of record distance detector this moment; Signal is handled and calculated steel billet length L s with control system is Ld2-Ld1, finishes detect length of billets work this moment.
4. system according to claim 3, it is characterized in that after finishing detect length of billets work, steel billet continues to move to distance detector place end, when the length value L c between steel billet head end and the distance detector is L2-Ls/2, signal is handled with control system and is obtained the measured length value signal of distance detector and transmit into furnace roller road stall signal, the steel billet center line is consistent with the stove center line, and this moment, steel billet centering was finished.
5. system according to claim 1 is characterized in that the distance detector detection faces is consistent with steel billet head end moving direction when distance detector is positioned on the furnace roller road right-hand member center line extended line.
6. according to one of claim 1-2 or 4 or 5 described systems, it is characterized in that described distance detector is laser range finder; Described termination detecting device is metal detector.
7. system according to claim 3 is characterized in that described distance detector is laser range finder; Described termination detecting device is metal detector.
8. system according to claim 6 is characterized in that described distance detector is the technical grade laser range finder; Described termination detecting device is metal detector.
9. according to claim 1 or 2 or 4 or 5 or 7 or 8 described systems, it is characterized in that described distance detector is the technical grade laser range finder; Described termination detecting device is metal detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110231640 CN102322803B (en) | 2011-08-12 | 2011-08-12 | Steel blank length-measurement positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110231640 CN102322803B (en) | 2011-08-12 | 2011-08-12 | Steel blank length-measurement positioning system |
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| CN102322803A CN102322803A (en) | 2012-01-18 |
| CN102322803B true CN102322803B (en) | 2013-08-28 |
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| CN 201110231640 Expired - Fee Related CN102322803B (en) | 2011-08-12 | 2011-08-12 | Steel blank length-measurement positioning system |
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| CN102538470B (en) * | 2012-02-22 | 2014-07-23 | 中冶南方(武汉)威仕工业炉有限公司 | Steel retaining machine with mandrel adjustable in elongation |
| CN102581241A (en) * | 2012-02-27 | 2012-07-18 | 柳州钢铁股份有限公司 | Secondary automatic cutting system of continuous casting slab |
| CN103084429A (en) * | 2013-01-31 | 2013-05-08 | 中冶南方工程技术有限公司 | Control method and control system for width centering of steel coil carried by steel coil car |
| US9469318B2 (en) * | 2013-11-12 | 2016-10-18 | Thales Canada Inc | Dynamic wheel diameter determination system and method |
| CN103820628B (en) * | 2014-03-11 | 2015-07-08 | 斯坦因（上海）工业炉有限公司 | Heating furnace slab positioning device and positioning method thereof |
| CN108130407A (en) * | 2017-12-25 | 2018-06-08 | 南京钢铁股份有限公司 | A kind of double cloth production cost efficiency method of non-oxidation roller hearth heat-treated furnace |
| CN109186467A (en) * | 2018-10-15 | 2019-01-11 | 中天钢铁集团有限公司 | A kind of steel billet length distance measuring method |
| CN110285763A (en) * | 2019-07-23 | 2019-09-27 | 上海联达节能科技股份有限公司 | Steel billet dimension measurement system based on laser ranging system and metal detection device |
| CN110986611B (en) * | 2019-12-24 | 2022-06-28 | 江苏永钢集团有限公司 | Method and device for measuring length of blank fed into steel rolling heating furnace and alarming |
| CN111795632B (en) * | 2020-07-02 | 2022-01-25 | 北京科技大学设计研究院有限公司 | On-line automatic measurement method for length of stokehole plate blank |
| CN114774672B (en) * | 2022-05-12 | 2024-01-09 | 广东韶钢松山股份有限公司 | Billet charging control method and system |
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