CN201935677U - Device for measuring thickness of liquid slag layer of casting slag of molten steel continuous casting crystallizer - Google Patents
Device for measuring thickness of liquid slag layer of casting slag of molten steel continuous casting crystallizer Download PDFInfo
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- CN201935677U CN201935677U CN2010206404542U CN201020640454U CN201935677U CN 201935677 U CN201935677 U CN 201935677U CN 2010206404542 U CN2010206404542 U CN 2010206404542U CN 201020640454 U CN201020640454 U CN 201020640454U CN 201935677 U CN201935677 U CN 201935677U
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Abstract
A device for measuring thickness of a liquid slag layer of casting slag of a molten steel continuous casting crystallizer comprises a curve metal pipe and a coppered steel wire, wherein the coppered steel wire is arranged in the metal pipe; millimeter class precision scales are graved at the head part of the metal pipe within 50mm; the device is also provided with a slit; the position of the slit is within the range of 90 degrees of the metal pipe circular section, where the scale serves as the starting point; the length direction of the slit is parallel to the direction of the scales; the dimension of the slit is 50mm; the width direction of the slit is vertical to the direction of the scales; and the size of the slit is larger than one third of the diameter of the coppered steel wire and smaller than the diameter of the coppered steel wire. The device has the advantages and the benefits that (1) the method is simple and fast; (2) the raw materials are cheap and easily obtained; and (3) the preparation for the raw materials is not needed between the two times of measurement, the interval time is short, and the quick-speed repeated measurement can be realized.
Description
Technical field
The utility model belongs to metal continuous casting technology field, and molten steel covering slag liquid slag layer thickness detection apparatus in a kind of continuous cast mold particularly is provided.
Background technology
The core development of continuous casting is the production of high pulling rate, high-quality zero defect strand.Under high pulling rate, the performance of covering slag plays important effect in the continuous casting process process, mainly contains insulation, prevents secondary oxidation, lubricated, heat conduction, absorption snotter etc.; The crystallizer slag is thick to be to weigh to judge the important parameter whether covering slag and steel grade and other casting parameters such as pulling rate etc. mate, and therefore must often monitor the thickness of covering slag in the crystallizer.
Device commonly used at present generally is to adopt the tinsel of multiple different melting points to insert simultaneously in the interior molten steel of crystallizer, measures the poor of the remaining metal length of different metal silk then, exists several tinsels to twine the phenomenon that confuses mutually, and must use ruler measurement.The patent No. provides a kind of metal liquid level slag thickness probe for 97234297.4 utility model patent, its principle is to have utilized the resistivity of air, slag, molten metal to exist than big-difference, can measure slag surface location, slag metal interface position and slag layer thickness by obtaining the characteristic signal that electrode in the probe drops to the test macro at contact slag surface, slag metal bath surface interface.But there is short shortcoming electrode life.Application number provides a kind of tinsel of these three kinds of different melting points of copper, aluminium and steel that utilizes to measure the thick device of covering slag in the continuous cast mold for 200610028520.9 patent of invention; must reinstall three kinds of tinsels but exist at every turn; but also will fix, can't realize fast and convenient measurement.
In order to satisfy the exploitation of high-level steel grade; in order to guarantee the quality of strand; the exploitation of corresponding crystallizer protecting residue is one of indispensable content; one of various performance embodiment factors of crystallizer promptly are its liquid slag layer thickness in continuous casting; and crystallizer is last container of flow field of molten steel in the steelmaking process; it carries out too much interference not allow outer bound pair, and the device of therefore developing a kind of liquid slag layer thickness of simple and easy to do measurement covering slag is the problem that must solve.
Summary of the invention
In order to overcome deficiency of the prior art; the utility model aims to provide a kind of measurement continuous casting of molten steel crystallizer protecting residue liquid slag layer thickness device; this device comprises a bending metals pipe and coppered steel wire composition; one coppered steel wire is arranged in the metal tube; be carved with a millimeter class precision scale in the metal tube head 50mm; and slit arranged; slit location is in the 90 ° of scopes of metal tube circular section that with the scale are starting point: the slit length direction is for being parallel to the scale direction; be of a size of 50mm; Width is perpendicular to the scale direction; be of a size of greater than 1/3 of coppered steel wire diameter, less than the coppered steel wire diameter.
Bending metals pipe diameter is 4～6mm, and the coppered steel wire diameter is 1～3mm.
The metal tube that metal tube can be satisfied the demand for steel pipe, copper pipe etc.
Advantage of the present utility model and effect: 1. method simple and fast; 2. raw material is cheap and easy to get; 3. need not to prepare again starting material between twice measurement, interval time is short, can realize repeatedly measuring fast.
Description of drawings
Fig. 1 is the utility model schematic representation of apparatus
Fig. 2 is the partial enlarged drawing of the utility model device head
Wherein: 1 metal tube, 2 coppered steel wires, 3 scales, 4 slits.
Embodiment
Referring to Fig. 1, with coppered steel wire 2 metal tube 1 that to pass a diameter be 4-6mm, metal tube is bent into and is suitable for coppered steel wire 2 and vertically is inserted under the protection slag blanket;
Referring to Fig. 2, metal tube 1 is foremost for having slit 4 straight section 50mm, and is carved with scale 3, and precision is the millimeter level, and starting point is the metal tube top;
The utility model implementation method: coppered steel wire 2 is passed metal tube 1 surpass 300mm, vertically be inserted under the interior molten steel face of crystallizer, insertion depth is 100-200mm, the insertion time is 3-7s, extracting the back, outwards to take out coppered steel wire 1 from metal tube 1 afterbody concordant with the metal tube head to steel wire head, and be liquid slag layer thickness from the scale length that slit 4 observation coppered steel wires do not have the copper facing top layer and promptly do not have yellow distance correspondence this moment.Only need when measuring once more once more coppered steel wire to be got final product by above method after metal tube stretches out forward.
Embodiment 1
Carry out covering slag liquid slag layer thickness with this device on slab caster 250mm * 2000mm and detect, steel grade is X65, and bending metals pipe 1 is a copper pipe; diameter is 4.0mm, and coppered steel wire 2 diameters are 1.0mm, and slit 4 length are 50mm; wide is 0.9mm, and the insertion time is 4.5s, and liquid slag layer thickness is 12mm.
Carrying out covering slag liquid slag layer thickness with this device on slab caster 250mm * 2000mm detects; steel grade is Q345R; bending metals pipe 1 is a copper pipe; diameter is 5.0mm; coppered steel wire 2 diameters are 2.5mm, and slit 4 length are 50mm, and wide is 2.0mm; the insertion time is 5.3s, and liquid slag layer thickness is 17mm.
Carrying out covering slag liquid slag layer thickness with this device on slab caster 250mm * 1800mm detects; steel grade is Q345R; bending metals pipe 1 is a steel pipe; diameter is 6.0mm, and coppered steel wire 2 diameters are 3mm, and slit 4 length are 50mm; wide is 2.5mm; the insertion time is 6.7s, and crystallizer width 1/4th place's liquid slag layer thickness are 10mm, and crystallizer width 3/4ths place's liquid slag layer thickness are 12mm.
Claims (2)
1. device of measuring continuous casting of molten steel crystallizer protecting residue liquid slag layer thickness; it is characterized in that: this device comprises a bending metals pipe (1) and coppered steel wire (2) composition; one coppered steel wire (2) is arranged in the metal tube (1); be carved with a millimeter class precision scale (3) in metal tube (1) the head 50mm; and slit (4) arranged; slit (4) position is in the 90 ° of scopes of metal tube circular section that with the scale are starting point: slit (4) length direction is for being parallel to the scale direction; be of a size of 50mm; Width is perpendicular to the scale direction; be of a size of greater than 1/3 of coppered steel wire (2) diameter, less than coppered steel wire (2) diameter.
2. according to the described device of claim 1, it is characterized in that bending metals pipe (1) diameter is 4～6mm, coppered steel wire (2) diameter is 1～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206404542U CN201935677U (en) | 2010-11-26 | 2010-11-26 | Device for measuring thickness of liquid slag layer of casting slag of molten steel continuous casting crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206404542U CN201935677U (en) | 2010-11-26 | 2010-11-26 | Device for measuring thickness of liquid slag layer of casting slag of molten steel continuous casting crystallizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201935677U true CN201935677U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206404542U Expired - Lifetime CN201935677U (en) | 2010-11-26 | 2010-11-26 | Device for measuring thickness of liquid slag layer of casting slag of molten steel continuous casting crystallizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN201935677U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284688A (en) * | 2011-08-26 | 2011-12-21 | 莱芜钢铁股份有限公司 | Device for detecting crystallizer liquid slag layer of continuous casting machine |
| CN104848821A (en) * | 2015-03-31 | 2015-08-19 | 山东钢铁股份有限公司 | Method and device for measuring thickness of tundish slag of continuous casting machine |
| CN108362256A (en) * | 2018-03-07 | 2018-08-03 | 辽宁科技大学 | A kind of electroslag remelting metal bath bottom pattern aided observing device and observation procedure |
-
2010
- 2010-11-26 CN CN2010206404542U patent/CN201935677U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284688A (en) * | 2011-08-26 | 2011-12-21 | 莱芜钢铁股份有限公司 | Device for detecting crystallizer liquid slag layer of continuous casting machine |
| CN104848821A (en) * | 2015-03-31 | 2015-08-19 | 山东钢铁股份有限公司 | Method and device for measuring thickness of tundish slag of continuous casting machine |
| CN104848821B (en) * | 2015-03-31 | 2017-09-12 | 山东钢铁股份有限公司 | The method for measuring thickness and device of continuous casting tundish bits |
| CN108362256A (en) * | 2018-03-07 | 2018-08-03 | 辽宁科技大学 | A kind of electroslag remelting metal bath bottom pattern aided observing device and observation procedure |
| CN108362256B (en) * | 2018-03-07 | 2023-09-08 | 辽宁科技大学 | Auxiliary observation device and method for bottom morphology of electroslag remelting metal molten pool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
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 |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |