CN204535681U - The measurer for thickness of continuous casting tundish bits - Google Patents
The measurer for thickness of continuous casting tundish bits Download PDFInfo
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- CN204535681U CN204535681U CN201520190512.9U CN201520190512U CN204535681U CN 204535681 U CN204535681 U CN 204535681U CN 201520190512 U CN201520190512 U CN 201520190512U CN 204535681 U CN204535681 U CN 204535681U
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- tinsel
- thickness
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- casting tundish
- measurer
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Abstract
The utility model belongs to conticaster field, and it discloses a kind of measurer for thickness of continuous casting tundish bits, measurer for thickness comprises: bracing frame, the first tinsel and the second tinsel; Support frame as described above is shaft-like, and axial direction straight down has clamping part and insertion section; Described insertion section is wound with described first tinsel and described second tinsel, and described first tinsel and described second tinsel form overlapping region on described insertion section; Wherein, described first tinsel and the second fusing point wiry are respectively 1400 DEG C ~ 1500 DEG C and 1000 DEG C ~ 1100 DEG C.The structure that the utility model achieves measurer for thickness by technique scheme is simple, and easy and simple to handle, Measuring Time is short, cheap, high to the thick measuring accuracy of continuous casting tundish slag.
Description
Technical field
The utility model relates to conticaster field, relates to a kind of measurer for thickness of continuous casting tundish bits particularly.
Background technology
Continuous casting tundish has the effect storing molten steel and provide molten steel continuously to crystallizer.Along with the raising required steel quality, during storage molten steel, need add coverture at molten steel surface, carry out adiabatic heat-insulation prevent heat radiation to molten steel, isolated air, prevents molten steel oxidation simultaneously.Become bits after usual coverture fusing, according to the requirement of Ferrous Metallurgy, bits can not be greater than 40mm at the thickness of molten steel upper surface, when being greater than 40mm, can cause molten steel slag, pollute molten steel, therefore, bits must be discharged from slag-drip opening when being greater than 40mm.
In order to measure the thickness of bits, the method usually adopted inserts in molten steel with an oxygen lance, stops after 20-25 seconds, taken out by oxygen lance from molten steel, measure slag thick according to bits residual on oxygen lance.This kind of method Measuring Time is long, and operating environment is severe, and operative employee needs hand-held oxygen lance to measure above the molten steel of red heat, long to the heat radiation time of operative employee, and measures inaccurate, and measuring accuracy is poor, affects the quality of molten steel.
Utility model content
In order to solve the problem, the utility model embodiment provides a kind of measurer for thickness of continuous casting tundish bits, and it comprises: described continuous casting tundish slag thickness measuring device comprises: bracing frame, the first tinsel and the second tinsel; Support frame as described above is shaft-like, and axial direction straight down has clamping part and insertion section; Described insertion section is wound with described first tinsel and described second tinsel, and described first tinsel and described second tinsel form overlapping region on described insertion section; Wherein, described first tinsel and the second fusing point wiry are respectively 1400 DEG C ~ 1500 DEG C and 1000 DEG C ~ 1100 DEG C.
In the measurer for thickness of continuous casting tundish bits as above, preferably, described first tinsel and described second tinsel are wrapped on described insertion section with the form of a wires, are formed together with a described wires to be screwed in described second tinsel by described first tinsel.
In the measurer for thickness of continuous casting tundish bits as above, preferably, a described wires to be wrapped on described insertion section with S shape and to form multi-turn on described insertion section.
In the measurer for thickness of continuous casting tundish bits as above, preferably, described first diameter wiry is 1.6mm ~ 2.8mm; Described second diameter wiry is 0.5mm ~ 1.0mmm.
In the measurer for thickness of continuous casting tundish bits as above, preferably, described first length wiry is 400mm ~ 600mm; Described second length wiry is 400mm ~ 600mm; The diameter of support frame as described above is 10mm ~ 25mm; The length of support frame as described above is 400mm ~ 600mm.
In the measurer for thickness of continuous casting tundish bits as above, preferably, described first material wiry is mild carbon steel, and described second material wiry is copper.
In the measurer for thickness of continuous casting tundish bits as above, preferably, described continuous casting tundish slag thickness measuring device also comprises: geometrical clamp, for clamping the clamping part of support frame as described above.
In the measurer for thickness of continuous casting tundish bits as above, preferably, the insertion section of support frame as described above is provided with scale mark, for determining the insertion depth of described overlapping region; Or the position of inserting molten steel end corresponding with described overlapping region on support frame as described above arranges mark, for monitoring the change in location measuring the first insertion molten steel end wiry in the region that forward laps.
The utility model embodiment still provides a kind of method for measuring thickness of continuous casting tundish bits, it comprises: winding step, the first tinsel and the second tinsel is wrapped in shaft-like bracing frame makes described first tinsel and described second tinsel form overlapping region on support frame as described above; Measuring process, support frame as described above to be vertically inserted in the molten steel of described continuous casting tundish and to make one end of described overlapping region be arranged in described continuous casting tundish molten steel, the other end of described overlapping region is positioned at above described continuous casting tundish bits, stops and extracts from molten steel after 1 ~ 2 second; Thickness determining step, vertically places the bracing frame extracted, and with described second striking point wiry for benchmark measures the length h of described first tinsel along the axial direction of support frame as described above downwards, described length h is the thickness of bits; Wherein, described first tinsel and the second fusing point wiry are respectively 1400 DEG C ~ 1500 DEG C and 1000 DEG C ~ 1100 DEG C.
In the method for measuring thickness of continuous casting tundish bits as above, preferably, in described winding step, the first tinsel and the second tinsel are wrapped on shaft-like bracing frame, specifically comprise: together with being screwed in described second tinsel by described first tinsel, form a wires, afterwards described metal wire to be wrapped on support frame as described above with S shape and to form multi-turn on support frame as described above.
In the method for measuring thickness of continuous casting tundish bits as above, preferably, in the method for measuring thickness of continuous casting tundish bits as above, preferably, described first material wiry is mild carbon steel, and described second material wiry is copper.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
Structure is simple, and easy and simple to handle, Measuring Time is short, cheap, high to the thickness measure precision of bits; Can be applicable to the thickness of any steel plant to continuous casting tundish bits to measure, applied range.
Accompanying drawing explanation
The schematic diagram of measurer for thickness when measuring of a kind of continuous casting tundish bits that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the enlarged diagram of A place and bracing frame in Fig. 1;
The front view of a kind of geometrical clamp that Fig. 3 provides for the utility model embodiment;
The vertical view of a kind of geometrical clamp that Fig. 4 provides for the utility model embodiment;
Wherein, in figure, symbol description is as follows:
1-first tinsel, 2-second tinsel, 3-bracing frame, 4-geometrical clamp, 5-bits, 6-tundish, 7-molten steel, 41-first caliper, 42-second caliper, 411,421-clamp handle, 412,422-jaw.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
When taking oxygen lance as the measurer for thickness of continuous casting tundish bits, the thickness of bits is measured according to bits residual on oxygen lance, namely oxygen lance need be rested on longer a period of time in molten steel when measuring, because this time can reach 20 ~ 25 seconds, operating personnel are made to be subject to the heat radiation time of molten steel long and to measure inaccurate, have a strong impact on steel quality, the utility model embodiment provides a kind of measurer for thickness of continuous casting tundish bits for this reason, see Fig. 1 ~ 4, this measurer for thickness comprises bracing frame 3, first tinsel 1 and the second tinsel 2.
Specifically, bracing frame 3 is in shaft-like, axial direction straight down has clamping part and insertion section, during measurement, clamp clamping part by operating personnel to be inserted into by bracing frame 3 to make one end of insertion section stretch in the molten steel 7 of continuous casting tundish 6 in the molten steel 7 of continuous casting tundish 6, the other end is exposed outside the bits 5 of continuous casting tundish 6.Bracing frame 3 can be cylindricality, and can also be tubular, its material be preferably heat-resisting steel.In addition, in order to prevent the slippage on bracing frame of two one metal wires or metal wire, bracing frame can select heat-resisting screw-thread steel.In order to make bracing frame 3 successfully insert in molten steel 7 through bits 5, the one end, insertion section in molten steel 7 to be stretched into is turbination.
Temperature due to molten steel 7 is 1500 DEG C ~ 1530 DEG C, and the temperature of bits 5, for being greater than 1100 DEG C and be less than 1400 DEG C, therefore adopts fusing point to be first tinsel 1 of 1400 DEG C ~ 1500 DEG C and fusing point to be second tinsel 2 of 1000 DEG C ~ 1100 DEG C.First tinsel 1 and the second tinsel are wrapped on the insertion section of bracing frame 3, and make the first tinsel 1 and the second tinsel 2 form overlapping region on insertion section, overlapping region refers on the direction of the axis perpendicular to bracing frame, is wound with the region of the first tinsel 1 and the second tinsel 2 simultaneously.The material of the first tinsel 1 is preferably mild carbon steel (such as iron wire); The material of the second tinsel 2 is preferably copper, and its fusing point is 1083.4 DEG C.Overlapping region is stretched in molten steel along the length of bracing frame axial direction with one end of the overlapping region when being vertically inserted in molten steel by bracing frame, and the other end is exposed to be as the criterion above bits
First tinsel 1 and the second tinsel 2 can separately be wrapped on bracing frame 3, that is, first the first tinsel 1 is wrapped on bracing frame 3, and then the second tinsel 2 is wrapped on bracing frame 3 or first the second tinsel 2 is wrapped on bracing frame 3, and then the first tinsel 1 is wrapped on bracing frame 3.In order to ensure the accuracy of bits thickness measure, first tinsel 1 and the second tinsel 2 are wrapped on bracing frame 3 simultaneously, be wrapped on bracing frame 3 by the first tinsel 1 and the second tinsel 2 with an overall form, particularly, first tinsel 1 and the second tinsel 2 are wrapped on bracing frame 3 with the form of a wires, this wires is formed, in twisted shape together with being screwed in the second tinsel 2 by the first tinsel 1.Preferably this wires to be wrapped on bracing frame 3 with S shape and to be wound multi-turn on bracing frame 3, make this wires tightly be attached on bracing frame 3, so increase the friction force between this wires and bracing frame 3, avoid it to be moved on bracing frame 3, namely when testing, the position of this wires on bracing frame 3 does not change.
First tinsel 1 and the second tinsel 2 to be wrapped on bracing frame 3 to be beneficial to operating personnel and to ensure that the first tinsel 1 and the second tinsel 2 are unlikely to slippage from bracing frame 3 further, the diameter of the first tinsel 1 is for being preferably 1.6mm ~ 2.8mm, such as: 1.6mm, 2mm, 2.2mm, 2.4mm, 2.8mm; The diameter of the second tinsel 2 is preferably 0.5mm ~ 1.0mmm, such as 0.5mm, 0.8mm, 1.0mm.In practice, the thickness of bits 5 can reach 60mm, far beyond the upper thickness limit value that value is 40mm, after bracing frame 3 is wound around, form multi-turn with the friction force increased between bracing frame 3 to make the first tinsel 1 and the second tinsel 2 and adapt to the blocked up situation of the actual (real) thickness of bits 5, the length of the first tinsel 1 is preferably 400mm ~ 600mm, such as: 400mm, 450mm, 500mm, 600mm; The length of the second tinsel 2 is preferably 400mm ~ 600mm, such as: 400mm, 450mm, 500mm, 600mm; The diameter of bracing frame 3 is preferably 10mm ~ 25mm, such as: 10mm, 15mm, 20mm, 25mm; The length of bracing frame 3 is be preferably 400mm ~ 600mm, such as: 400mm, and 450mm, 500mm, 600mm.
During test, operating personnel are needed to insert in molten steel 7 by bracing frame 3, because molten steel 7 temperature reaches 1500 DEG C ~ 1530 DEG C, in order to reduce the thermal exposure of molten steel 7 couples of operating personnel, continuous casting tundish slag thickness measuring device also comprises: for clamping the geometrical clamp 4 of bracing frame clamping part.Geometrical clamp 4 is arranged in 90 ° with bracing frame 3.It is identical with the structure of the second caliper 42 with the second caliper 42, first caliper 41 that geometrical clamp has the first caliper 41 be hinged, and all have clamp handle 411,421 and jaw 412,422, clamp handle and jaw are distinguished with pin joint.Two clamp handles of the first caliper 41 or the second caliper 42 are provided with spring between the part of pin joint.The surface contacted with bracing frame clamping part of jaw is preferred cambered surface, cambered surface has vertical line to increase friction when clamping.
Grasp bracing frame 3 for the ease of operating personnel and insert the degree of depth in molten steel 7 to realize the measurement of bits thickness, bracing frame 3 insertion section is provided with scale mark, such as, on axis direction from the bottom to top, in overlapping region, 40mm, 50mm, 60mm, 70mm place arranges scale mark respectively, generally the actual (real) thickness of bits can not more than 60mm, if so the scale mark of 70mm submerges in bits when measuring, then substantially show that overlapping region insertion depth meets the demands, namely lower end, overlapping region has been immersed in molten steel.The quantity of scale mark is preferably multiple, sets gradually along bracing frame axial direction, with when the thickness of bits 5 is greater than upper thickness limit value, for operating personnel provide the foundation of overlapping region insertion depth, thus can accurately measure the thickness of bits 5.
In addition, in order to determine that one end of overlapping region in measuring process has been inserted in molten steel 7 more exactly, molten steel end corresponding position mark mark (such as indentation etc.) can be inserted with overlapping region on bracing frame 3, for monitoring the change in location of the insertion molten steel end measuring the first tinsel 1 in the region that forward laps, like this after measurement completes, just can determine whether that one end of overlapping region insertion molten steel really inserts in molten steel, if insert in molten steel 7, on bracing frame 3 after then having measured overlapping region the first tinsel 1 namely insert bottom molten steel end the position of bracing frame 3 can on move, the mark that namely distance sets before can produce certain distance, that is, first tinsel 1 to have immersed in molten steel and melt by the molten steel of high temperature, the measurement result that this kind of situation obtains is only accurately, if overlapping region do not insert in molten steel bottom, on bracing frame after then having measured, the position of molten steel end on bracing frame 3 of namely inserting bottom of the first tinsel 1 of overlapping region does not change, namely with the position consistency setting mark before, that is, first tinsel 1 not immerse in molten steel 7 not melt by the molten steel of high temperature, may error be there is in the measurement result that this kind of situation obtains.
The utility model embodiment still provides a kind of method for measuring thickness of continuous casting tundish bits, its method step is as follows: winding step, first tinsel and the second tinsel are wrapped on shaft-like bracing frame to make the first tinsel and the second tinsel form overlapping region on bracing frame, wherein, first tinsel and the second fusing point wiry are respectively 1400 DEG C ~ 1500 DEG C and 1000 DEG C ~ 1100 DEG C, overlapping region refers on the direction perpendicular to bracing frame axis, is wound with the first tinsel and the second region wiry simultaneously.First material wiry is preferably mild carbon steel (such as iron wire), and the second material wiry is preferably copper, and its fusing point is 1083.4 DEG C.Aforesaid measurer for thickness is adopted when implementing the method.
Measuring process, is vertically inserted into bracing frame in the molten steel of continuous casting tundish and makes one end of the overlapping region of bracing frame stretch in molten steel, and the other end is exposed above the bits of continuous casting tundish, stops and extracts from molten steel after 1 ~ 2 second.Generally the upper thickness limit value of continuous casting tundish bits is preferably 40mm, a part of bits to be discharged when bits actual (real) thickness exceedes this higher limit, according to the applicable cases of reality, the upper thickness limit value of continuous casting tundish bits can also be other values, and the present embodiment does not limit this.Above-mentioned overlapping region should grow to ensure that in the molten steel that its one end can be stretched under slag, the other end can be exposed to above bits as much as possible along the length of bracing frame axis.
Thickness determining step, vertically placed by the bracing frame extracted with the second striking point wiry for benchmark measures the length h of the first tinsel along the axial direction of bracing frame downwards, length h is the thickness of bits.
During application, liquid steel temperature due to continuous casting tundish is 1500 DEG C ~ 1530 DEG C, the temperature of bits is for being greater than 1100 DEG C and being less than 1400 DEG C, therefore adopt fusing point to be first tinsel of 1400 DEG C ~ 1500 DEG C and fusing point to be second tinsel of 1000 DEG C ~ 1100 DEG C to carry out the measurement of bits thickness, the part that during measurement, overlapping region place second tinsel immerses in bits and molten steel is all melted; The part that first tinsel immerses in molten steel is all melted, and the part immersed in bits is then retained, by with the second striking point wiry for benchmark is measured the part that the first tinsel immerses in bits, the thickness of bits can be obtained.
In winding step, can first the first tinsel or the second tinsel be wrapped on bracing frame, more accordingly by another tinsel: the second tinsel or the first tinsel are wrapped on bracing frame.In order to ensure the accuracy of bits thickness measure, first tinsel and the second tinsel are wrapped on bracing frame simultaneously, particularly, form the metal wire that a wires i.e. two money paid for shares belong to silk formation together with being first screwed in the second tinsel by the first tinsel, again this metal wire is wrapped on bracing frame afterwards.Preferably metal wire to be wrapped on bracing frame with S shape and to be wound multi-turn on bracing frame, make metal wire tightly be attached on bracing frame, so increase the friction force between metal wire and bracing frame, avoid it to be moved on bracing frame, namely in testing procedure, the position of metal wire on bracing frame does not change.
First tinsel and the second tinsel to be wrapped on bracing frame to be beneficial to operating personnel and to ensure that the first tinsel and the second tinsel are unlikely to slippage from bracing frame further, first diameter wiry is for being preferably 1.6mm ~ 2.8mm, such as: 1.6mm, 2mm, 2.2mm, 2.4mm, 2.8mm; Second diameter wiry is preferably 0.5mm ~ 1.0mmm, such as 0.5mm, 0.8mm, 1.0mm.In practice, the thickness of bits can reach 60mm, far beyond the upper thickness limit value that value is 40mm, on bracing frame, form multi-turn with increasing friction force to make the first tinsel and the second tinsel and adapt to the blocked up situation of the actual (real) thickness of bits, first length wiry is preferably 400mm ~ 600mm, such as: 400mm, 450mm, 500mm, 600mm; Second length wiry is preferably 400mm ~ 600mm, such as: 400mm, 450mm, 500mm, 600mm; The diameter of bracing frame is preferably 10mm ~ 25mm, such as: 10mm, 15mm, 20mm, 25mm; The length of bracing frame is be preferably 400mm ~ 600mm, such as: 400mm, and 450mm, 500mm, 600mm.Bracing frame can be cylindricality, such as cylindrical; Can also be tubular, such as tubular, its material be preferably heat-resisting steel.In addition, in order to prevent the slippage on bracing frame of two one metal wires or metal wire, bracing frame can select heat-resisting screw-thread steel.
In above-mentioned measuring process, in order to determine that one end of overlapping region in measuring process has been inserted in molten steel more exactly, can before bracing frame inserts molten steel, bracing frame inserts with overlapping region molten steel end corresponding position mark mark (such as indentation etc.), like this after measurement completes, just can determine whether that one end of overlapping region insertion molten steel really inserts in molten steel, if insert in molten steel, on bracing frame after then having measured first of overlapping region wiry namely insert bottom molten steel end the position of bracing frame can on move, the mark that namely distance sets before can produce certain distance, that is, first tinsel to have immersed in molten steel and melt by the molten steel of high temperature, the measurement result that this kind of situation obtains is only accurately, if overlapping region do not insert in molten steel bottom, on bracing frame after then having measured, first of overlapping region the position of molten steel end on bracing frame of namely inserting bottom wiry does not change, namely with the position consistency setting mark before, that is, first tinsel not immerse in molten steel not melt by the molten steel of high temperature, may error be there is in the measurement result that this kind of situation obtains.
In sum, the beneficial effect of the utility model embodiment is as follows:
Structure is simple, and easy and simple to handle, Measuring Time is short, cheap, and bits thickness measure precision is high; Can be applicable to any steel plant to measure continuous casting tundish slag thickness, applied range.
Claims (8)
1. a measurer for thickness for continuous casting tundish bits, is characterized in that: described continuous casting tundish slag thickness measuring device comprises: bracing frame, the first tinsel and the second tinsel;
Support frame as described above is shaft-like, and axial direction straight down has clamping part and insertion section;
Described insertion section is wound with described first tinsel and described second tinsel, and described first tinsel and described second tinsel form overlapping region on described insertion section;
Wherein, described first tinsel and the second fusing point wiry are respectively 1400 DEG C ~ 1500 DEG C and 1000 DEG C ~ 1100 DEG C.
2. the measurer for thickness of continuous casting tundish bits according to claim 1, it is characterized in that, described first tinsel and described second tinsel are wrapped on described insertion section with the form of a wires, are formed together with a described wires to be screwed in described second tinsel by described first tinsel.
3. the measurer for thickness of continuous casting tundish bits according to claim 2, is characterized in that, a described wires to be wrapped on described insertion section with S shape and to form multi-turn on described insertion section.
4. the measurer for thickness of continuous casting tundish bits according to claim 1, is characterized in that, described first diameter wiry is 1.6mm ~ 2.8mm;
Described second diameter wiry is 0.5mm ~ 1.0mmm.
5. the measurer for thickness of continuous casting tundish bits according to claim 1, is characterized in that,
Described first length wiry is 400mm ~ 600mm;
Described second length wiry is 400mm ~ 600mm;
The diameter of support frame as described above is 10mm ~ 25mm;
The length of support frame as described above is 400mm ~ 600mm.
6. the measurer for thickness of continuous casting tundish bits according to claim 1, is characterized in that, described first material wiry is mild carbon steel, and described second material wiry is copper.
7. the measurer for thickness of continuous casting tundish bits according to claim 1, is characterized in that, described continuous casting tundish slag thickness measuring device also comprises:
Geometrical clamp, for clamping the clamping part of support frame as described above.
8. the measurer for thickness of continuous casting tundish bits according to claim 1, is characterized in that, the insertion section of support frame as described above is provided with scale mark, for determining the insertion depth of described overlapping region; Or the position of inserting molten steel end corresponding with described overlapping region on support frame as described above arranges mark, for monitoring the change in location measuring the first insertion molten steel end wiry in the region that forward laps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520190512.9U CN204535681U (en) | 2015-03-31 | 2015-03-31 | The measurer for thickness of continuous casting tundish bits |
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| CN201520190512.9U CN204535681U (en) | 2015-03-31 | 2015-03-31 | The measurer for thickness of continuous casting tundish bits |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2015
- 2015-03-31 CN CN201520190512.9U patent/CN204535681U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Granted publication date: 20150805 Effective date of abandoning: 20170912 |