CN112589060A - Brand-new tundish immersion type water gap insertion depth measuring equipment and method thereof - Google Patents
Brand-new tundish immersion type water gap insertion depth measuring equipment and method thereof Download PDFInfo
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- CN112589060A CN112589060A CN202011585464.5A CN202011585464A CN112589060A CN 112589060 A CN112589060 A CN 112589060A CN 202011585464 A CN202011585464 A CN 202011585464A CN 112589060 A CN112589060 A CN 112589060A
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- measuring tool
- inlet
- loss measuring
- molten steel
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000003780 insertion Methods 0.000 title claims abstract description 14
- 230000037431 insertion Effects 0.000 title claims abstract description 14
- 238000007654 immersion Methods 0.000 title claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 238000005266 casting Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000002791 soaking Methods 0.000 claims description 16
- 238000005259 measurement Methods 0.000 abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 10
- 239000002893 slag Substances 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 5
- 206010053615 Thermal burn Diseases 0.000 abstract description 3
- 238000009749 continuous casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
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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
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
-
- 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
- B22D11/16—Controlling or regulating processes or operations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
A brand new device and a method for measuring the insertion depth of a tundish submersed nozzle relate to the technical field of steel equipment and comprise a tundish, molten steel is filled in the tundish, a submersion inlet is formed in the bottom end of the tundish, a marking line is arranged on the submersion inlet, an L-shaped self-loss measuring tool is arranged on one side wall of the submersion inlet, and the L-shaped self-loss measuring tool and the lower portion of the submersion inlet are inserted into the molten steel of a crystallizer together. The brand new tundish submerged nozzle insertion depth measuring equipment and the method thereof have the advantages of accurate measurement and small measurement error; the action amplitude in the measuring process is small, the three-layer structure of the casting powder in the crystallizer is not easy to damage, and a liquid slag layer is disturbed, so that the quality problem of the steel billet is caused; the scald of the operator is not easy to be caused in the measuring process; the thin iron wire with lower price can be selected for measurement, the consumption of the crude oxygen burning pipe with higher cost is reduced, the measuring tool is simple to manufacture, can be recycled after being used, and is less in consumption.
Description
The technical field is as follows:
the invention relates to the technical field of steel equipment, in particular to brand-new tundish submerged nozzle insertion depth measuring equipment and method.
Background art:
the method for measuring the insertion depth of the tundish submerged nozzle before round billet continuous casting is characterized in that a thick oxygen burning pipe with the diameter of 8mm is bent into a right-angle hook with the strength of 3 cm; the other side of the two is 500 mm; thirdly, the hook is inserted into the molten steel of the crystallizer to hook the lower edge of the submerged nozzle, and the oxygen burning pipe is lifted out in time before the hook is not melted; and fourthly, roughly judging the actual length of the immersion nozzle inserted into the molten steel and below the slag layer of the casting powder through the height of the molten steel stuck on the oxygen burning pipe. This method has the following disadvantages: the measurement error is large and is between 20 and 30mm, so that poor melting of the casting powder or slag entrapment of molten steel and the like are easily caused; the action range of the measuring process is large, the head part of the iron hook is easy to be caked with large cold steel to cause scalding of operators in the measuring process, and the three-layer structure of the casting powder in the crystallizer is easy to damage, a liquid slag layer is disturbed to cause billet quality accidents, or the billet is stuck to a billet shell or the surface of a crystallizer copper pipe to form a slag pit and other defects.
Therefore, with the increasing quality requirements of round billet continuous casting, the measurement method is in urgent need of improvement.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provide brand-new tundish submerged nozzle insertion depth measuring equipment and method.
In order to solve the problems existing in the background technology, the invention adopts the following technical scheme: the automatic loss measuring device comprises a tundish, molten steel is filled in the tundish, a water immersion inlet is formed in the bottom end of the tundish, a marking line is arranged on the water immersion inlet, an L-shaped automatic loss measuring tool is arranged on one side wall of the water immersion inlet, and the L-shaped automatic loss measuring tool and the lower portion of the water immersion inlet are inserted into the molten steel of a crystallizer together.
The distance between the marking line and the bottom end of the immersion inlet is d1, the length of one side of the L-shaped self-loss measuring tool is d2, and the values of d2 and d1 are equal.
The distance between the L-shaped self-loss measuring tool and the liquid level of the molten steel in the crystallizer is d4, and d3 and d3, namely the distance between the L-shaped self-loss measuring tool and the water immersion inlet, which are inserted below the liquid level of the molten steel in the crystallizer can be known through d2-d 4.
The using method comprises the following steps:
1) marking lines on the soaking inlet, wherein the distance between the marking lines and the bottom end of the soaking inlet is d1, and the length of d1 is 300 unit lengths;
2) utilizing an oxygen burning pipe to self-manufacture an L-shaped self-loss measuring tool, wherein one side of the L-shaped self-loss measuring tool is manufactured to have the length d2, and the lengths of d2 and d1 are equal and are all 300 unit lengths;
3) inserting the west part of a soaking inlet into molten steel of a crystallizer;
4) the L-shaped self-loss measuring tool is inserted below the liquid level of the molten steel of the crystallizer from the position of a mark line of the water immersion inlet;
5) after about 10 seconds, the L-shaped self-loss measuring tool is partially consumed under the liquid level of the molten steel of the crystallizer, the L-shaped self-loss measuring tool is pulled out, and the residual length d4 of the L-shaped self-loss measuring tool is measured;
6) and subtracting d4 by using the total length d2 of the L-shaped self-loss measuring tool and the residual length of the L-shaped self-loss measuring tool to obtain a value d3, wherein d3 is the insertion depth of the water immersion inlet in the molten steel of the crystallizer.
The invention has the beneficial effects that:
1) the measurement is accurate, and the measurement error is small and is between 10 mm;
2) the action amplitude in the measuring process is small, the three-layer structure of the casting powder in the crystallizer is not easy to damage, and a liquid slag layer is disturbed, so that the quality problem of the steel billet is caused;
3) the scald of the operator is not easy to be caused in the measuring process;
4) the thin iron wire with lower price can be selected for measurement, the consumption of the crude oxygen burning pipe with higher cost is reduced, the measuring tool is simple to manufacture, can be recycled after being used, and is less in consumption.
Description of the drawings:
FIG. 1 is a view showing the construction of a submersion inlet in accordance with the present invention;
FIG. 2 is a block diagram of an L-shaped self-wearing article of the present invention;
FIG. 3 is a structural view of the water immersion inlet of the present invention inserted into the molten steel of the mold;
FIG. 4 is a structural view of the L-shaped self-loss measuring tool of the present invention inserted into the molten steel of the crystallizer;
fig. 5 is a diagram showing a worn structure of the L-shaped self-wearing appliance of the present invention.
The specific implementation mode is as follows:
referring to the drawings, the present invention specifically adopts the following embodiments: the crystallizer molten steel automatic loss measuring device comprises a tundish 1, molten steel is filled in the tundish 1, a water immersion inlet 2 is formed in the bottom end of the tundish 1, a marking line 3 is arranged on the water immersion inlet 2, an L-shaped automatic loss measuring tool 4 is arranged on one side wall of the water immersion inlet 2, and the L-shaped automatic loss measuring tool 4 and the lower portion of the water immersion inlet 2 are inserted into molten steel 5 of a crystallizer together. The distance from the marking line 3 to the bottom end of the immersion inlet 2 is d1, the length of one side of the L-shaped self-loss measuring tool 4 is d2, and the values of d2 and d1 are equal. The distance between the L-shaped self-loss measuring tool 4 and the liquid surface of the molten steel 5 of the mold is d4, and d3 and d3, namely the distance between the L-shaped self-loss measuring tool 4 and the water immersion inlet 2, which are inserted below the liquid surface of the molten steel 5 of the mold can be known from d2-d 4.
The using method comprises the following steps:
1) marking a mark line 3 on the soaking inlet 2, wherein the distance from the mark line 3 to the bottom end of the soaking inlet is d1, and the length of d1 is 300 unit lengths;
2) utilizing an oxygen burning pipe to self-manufacture an L-shaped self-loss measuring tool 4, wherein one side of the L-shaped self-loss measuring tool 4 is manufactured to have the length d2, and the lengths of d2 and d1 are equal and are 300 unit lengths;
3) inserting the western part of the soaking inlet 2 into the molten steel 5 of the crystallizer;
4) an L-shaped self-loss measuring tool 4 is inserted from the position of a marking line 3 of the soaking inlet 2 to the position below the liquid level of the molten steel 5 of the crystallizer;
5) after about 10 seconds, the L-shaped self-loss measuring tool 4 is partially consumed below the liquid level of the crystallizer molten steel 5, the L-shaped self-loss measuring tool 4 is pulled out, and the residual length d4 of the L-shaped self-loss measuring tool 4 is measured;
6) the total length d2 of the L-shaped self-loss measuring tool 4 and the residual length of the L-shaped self-loss measuring tool 4 are subtracted d4 to obtain the value d3, d3 which is the insertion depth of the water-immersion inlet 2 in the molten steel 5 of the crystallizer.
When the invention is used, a marking line 3 with d1=300 height is marked on a soaking inlet 2, an L-shaped self-loss measuring tool 4 with d2=300 height is manufactured by an oxygen burning pipe, the L-shaped self-loss measuring tool 4 is arranged on the side wall of the soaking inlet 2 and is arranged from the marking line 3, the L-shaped self-loss measuring tool 4 and the soaking inlet 2 are inserted into the molten steel 5 of the crystallizer, the L-shaped self-loss measuring tool 4 and the lower part of the soaking inlet 2 are positioned below the liquid level of the molten steel 5 of the crystallizer, the time is about 10 seconds, the part of the L-shaped self-loss measuring tool 4 below the liquid level of the molten steel 5 of the crystallizer is corroded, the part of the L-shaped self-loss measuring tool 4 above the liquid level of the residual molten steel 5 of the crystallizer is pulled out for about 10 seconds, the residual L-shaped self-loss measuring tool 4 is measured to be d4, the length of d4 is assumed to be 220, and the subtraction is carried out by d2 and d4, namely, the 300, since the distance d1 from the marking line 3 to the bottom end of the submerged entry nozzle 2 is equal to the total length d2 of the L-shaped self-loss gauge 4, the depth of the submerged entry nozzle 2 inserted below the liquid level of the mold molten steel 5, i.e., d3, can be known by the loss length d3 of the L-shaped self-loss gauge 4.
The invention is a brand-new measuring method of the submerged nozzle of the tundish, the measurement is accurate, the error is small, and the measurement is 10mm to 20mm more accurate than the previous measuring method; the thin iron wire with lower price can be selected for measurement, the consumption of the crude oxygen burning pipe with higher cost is reduced, the measuring tool is simple to manufacture, can be recycled after being used, and is less in consumption.
In conclusion, the brand-new tundish submerged nozzle insertion depth measuring equipment and method thereof have the advantages of accurate measurement and small measurement error which is 10 mm; the action amplitude in the measuring process is small, the three-layer structure of the casting powder in the crystallizer is not easy to damage, and a liquid slag layer is disturbed, so that the quality problem of the steel billet is caused; the scald of the operator is not easy to be caused in the measuring process; the thin iron wire with lower price can be selected for measurement, the consumption of the crude oxygen burning pipe with higher cost is reduced, the measuring tool is simple to manufacture, can be recycled after being used, and is less in consumption.
Claims (4)
1. The utility model provides a brand-new pouring basket immersion nozzle inserts degree of depth measuring equipment which characterized in that: the automatic casting mold comprises a tundish (1), molten steel is filled in the tundish (1), a water immersion inlet (2) is formed in the bottom end of the tundish (1), a marking line (3) is arranged on the water immersion inlet (2), an L-shaped automatic loss measuring tool (4) is arranged on one side wall of the water immersion inlet (2), and the L-shaped automatic loss measuring tool (4) and the lower portion of the water immersion inlet (2) are inserted into molten steel (5) of a mold together.
2. The apparatus of claim 1, wherein the immersion nozzle insertion depth measuring means comprises: the distance from the marking line (3) to the bottom end of the soaking inlet (2) is d1, the length of one side of the L-shaped self-loss measuring tool (4) is d2, and the values of d2 and d1 are equal.
3. The brand-new tundish submerged nozzle insertion depth measuring apparatus according to claim 1 or 2, wherein: the distance between the L-shaped self-loss measuring tool (4) and the liquid level of the molten steel (5) of the crystallizer is d4, and d3 and d3, namely the distance between the L-shaped self-loss measuring tool (4) and the immersion inlet (2) inserted below the liquid level of the molten steel (5) of the crystallizer can be known through d2-d 4.
4. A brand-new tundish submerged nozzle insertion depth measuring method according to claim 1, characterized in that: the method comprises the following steps:
marking lines (3) on the soaking inlet (2), wherein the distance between the marking lines (3) and the bottom end of the soaking inlet is d1, and the length of d1 is 300 unit lengths;
utilizing an oxygen burning pipe to self-manufacture an L-shaped self-loss measuring tool (4), wherein one side of the L-shaped self-loss measuring tool (4) is manufactured to have the length d2, and the lengths of d2 and d1 are equal and are 300 unit lengths;
inserting the western part of the soaking inlet (2) into the molten steel (5) of the crystallizer;
the L-shaped self-loss measuring tool (4) is inserted below the liquid level of the molten steel (5) of the crystallizer from the position of a marking line (3) of the soaking inlet (2);
after about 10 seconds, the L-shaped self-loss measuring tool (4) is consumed when the part below the liquid level of the crystallizer molten steel (5) is consumed, the L-shaped self-loss measuring tool (4) is pulled out, and the residual length d4 of the L-shaped self-loss measuring tool (4) is measured;
the total length d2 of the L-shaped self-loss measuring tool (4) and the residual length of the L-shaped self-loss measuring tool (4) are used for subtracting d4 to obtain the numerical value d3, d3, namely the insertion depth of the water immersion inlet (2) in the molten steel (5) of the crystallizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011585464.5A CN112589060A (en) | 2020-12-29 | 2020-12-29 | Brand-new tundish immersion type water gap insertion depth measuring equipment and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011585464.5A CN112589060A (en) | 2020-12-29 | 2020-12-29 | Brand-new tundish immersion type water gap insertion depth measuring equipment and method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112589060A true CN112589060A (en) | 2021-04-02 |
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|---|---|---|---|
| CN202011585464.5A Pending CN112589060A (en) | 2020-12-29 | 2020-12-29 | Brand-new tundish immersion type water gap insertion depth measuring equipment and method thereof |
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| CN (1) | CN112589060A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060074399A (en) * | 2004-12-27 | 2006-07-03 | 주식회사 포스코 | Immersion nozzle deposition depth measuring device |
| CN201931063U (en) * | 2010-12-13 | 2011-08-17 | 河北省首钢迁安钢铁有限责任公司 | Device for measuring immersed depth of slab continuous casting nozzle and thickness of casting powder melt cinder |
| CN204842960U (en) * | 2015-06-26 | 2015-12-09 | 鞍钢股份有限公司 | Reference mark for immersion depth of tundish submersed nozzle |
| CN207036211U (en) * | 2017-05-19 | 2018-02-23 | 江阴兴澄特种钢铁有限公司 | A kind of submersed nozzle insertion depth measurement apparatus |
| CN208033603U (en) * | 2018-04-20 | 2018-11-02 | 中天钢铁集团有限公司 | The online depth measurement device of submersed nozzle |
| CN208772452U (en) * | 2018-09-10 | 2019-04-23 | 广东国鑫实业股份有限公司 | A kind of submersed nozzle convenient for controlling immersion depth |
| CN208945121U (en) * | 2018-10-26 | 2019-06-07 | 本钢板材股份有限公司 | A device for measuring the insertion depth of continuous casting nozzle and the thickness of liquid slag layer |
| CN111482590A (en) * | 2020-06-04 | 2020-08-04 | 广东韶钢松山股份有限公司 | Immersion nozzle insertion method and apparatus |
-
2020
- 2020-12-29 CN CN202011585464.5A patent/CN112589060A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060074399A (en) * | 2004-12-27 | 2006-07-03 | 주식회사 포스코 | Immersion nozzle deposition depth measuring device |
| CN201931063U (en) * | 2010-12-13 | 2011-08-17 | 河北省首钢迁安钢铁有限责任公司 | Device for measuring immersed depth of slab continuous casting nozzle and thickness of casting powder melt cinder |
| CN204842960U (en) * | 2015-06-26 | 2015-12-09 | 鞍钢股份有限公司 | Reference mark for immersion depth of tundish submersed nozzle |
| CN207036211U (en) * | 2017-05-19 | 2018-02-23 | 江阴兴澄特种钢铁有限公司 | A kind of submersed nozzle insertion depth measurement apparatus |
| CN208033603U (en) * | 2018-04-20 | 2018-11-02 | 中天钢铁集团有限公司 | The online depth measurement device of submersed nozzle |
| CN208772452U (en) * | 2018-09-10 | 2019-04-23 | 广东国鑫实业股份有限公司 | A kind of submersed nozzle convenient for controlling immersion depth |
| CN208945121U (en) * | 2018-10-26 | 2019-06-07 | 本钢板材股份有限公司 | A device for measuring the insertion depth of continuous casting nozzle and the thickness of liquid slag layer |
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Application publication date: 20210402 |