CN201145618Y - Self-falling floating type liquid steel temperature, oxygen and carbon measurement compound probe - Google Patents
Self-falling floating type liquid steel temperature, oxygen and carbon measurement compound probe Download PDFInfo
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- CN201145618Y CN201145618Y CNU2007200878401U CN200720087840U CN201145618Y CN 201145618 Y CN201145618 Y CN 201145618Y CN U2007200878401 U CNU2007200878401 U CN U2007200878401U CN 200720087840 U CN200720087840 U CN 200720087840U CN 201145618 Y CN201145618 Y CN 201145618Y
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- determination
- carbon
- oxygen
- molten steel
- steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 125
- 239000010959 steel Substances 0.000 title claims abstract description 125
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 69
- 239000001301 oxygen Substances 0.000 title claims abstract description 64
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 64
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 239000000523 sample Substances 0.000 title claims abstract description 39
- 238000007667 floating Methods 0.000 title claims abstract description 21
- 238000005259 measurement Methods 0.000 title abstract description 8
- 239000007788 liquid Substances 0.000 title description 2
- 150000001875 compounds Chemical class 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 239000010453 quartz Substances 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 26
- 239000003708 ampul Substances 0.000 claims description 24
- 239000004033 plastic Substances 0.000 claims description 21
- 229920003023 plastic Polymers 0.000 claims description 21
- 239000000945 filler Substances 0.000 claims description 17
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 13
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract 4
- 230000001681 protective effect Effects 0.000 abstract 2
- 229940043774 zirconium oxide Drugs 0.000 description 12
- 238000013461 design Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- 229910003336 CuNi Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Measuring Oxygen Concentration In Cells (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
The utility model provides a self-falling floating type composite probe for measuring temperature, oxygen and carbon in molten steel. The self-falling floating type composite probe has a structure that: the composite probe comprises three components of temperature, oxygen and carbon measurement, which are arranged inside a first steel tube (1); the steel tube is also an anode for measuring the oxygen; the head part of a tube body is provided with a paper cap (13); the outer layer of the other part of the tube body is provided with a fireproofed paper tube (10) and a metal protective tube (16); a tapered molten steel inlet hole (9) runs through the metal protective tube (16) and the fireproofed paper tube (10) in turn and is communicated with a molten steel crystalline carbon chamber (22) of the first steel tube (1); a float chamber (11) is welded on a second steel tube (12); and the head end of the second steel tube is connected with the tail end of the first steel tube. The composite probe has small size, stable and reliable signal acquisition, short measuring time and high accuracy.
Description
Technical field
The utility model relates to the molten steel fields of measurement, particularly relates to a kind of from falling floating type measuring temp of molten steel, oxygen determination, carbon determination combined probe.
Background technology
China's steel industry is strided forward towards iron and steel power by a big steel country, and steel industry is smelted crude steel by tradition and turned to the direction of smelting the elaboration steel to develop.It is the direction of China's iron and steel development that the elaboration steel grade is smelted, and therefore, the online detection of smelting the elaboration steel grade is had higher requirement with the reliability and the accuracy of combined probe.The revolving furnace sublance of selling is measured and is used the combined probe volume bigger in the market, the maintenance cost height.When probe was connected with the survey rifle, the structural design impact resistance was relatively poor, caused the probe measurement failure under harsh conditions often.Influence is produced and is normally carried out and product quality.
Summary of the invention
The purpose of this utility model provides a kind of from falling floating type measuring temp of molten steel, oxygen determination, carbon determination combined probe, this probe size is little, by falling in the molten steel voluntarily after the mechanical arm input and floating and measure on the molten steel face, the signals collecting performance is good, and Measuring Time is short.
The technical solution adopted in the utility model is: comprise thermometric, oxygen determination, three assemblies of carbon determination, they all are contained in first steel pipe, this steel pipe also is the oxygen determination positive pole, and its body head is equipped with the paper cap, and all the other place's skins of body are equipped with fire prevention paper tube and protection metal pipe; Taper molten steel enters the hole and passes protection metal pipe, fire prevention paper tube successively and be communicated with molten steel crystalline carbon chamber in first steel pipe; A floating chamber is welded on second steel pipe, and this steel pipe head end links to each other with the first steel pipe tail end.
The utility model compared with prior art has following major advantage:
1. temperature signal and oxygen signal totally one negative pole, volume is less, the signals collecting design is optimized.
2. cancelled the steel tin hat, the oxygen determination time is very fast.
3. Measuring Time is short, reduces labor strength, has realized safety and environmental protection and energy-saving and cost-reducing.
4. reduce elements such as steel cap, reduced cost of products, saved the user and purchased finished product, realized social synthesis's economic benefit.
5. with after thermometric, oxygen determination and the integrated design of carbon determination assembly, the reliability that can guarantee probe measurement with survey into rate, can guarantee measuring accuracy simultaneously.
6. thermometric, carbon determination, oxygen determination are adopted the quartz ampoule location, and with the integrated design of resin sand and the encapsulation of high temperature filler, can guarantee that measuring accuracy surveys into rate with raising.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1. first steel pipe; 2. temperature thermocouple; 3. first quartz ampoule; 4. plastic stent; 5. thermometric compensating wire positive pole; 6. thermometric compensating wire negative pole; 7. carbon determination compensating wire positive pole; 8. second quartz ampoule; 9. the taper molten steel enters the hole; 10. fire prevention paper tube; 11. floating chamber; 12. second steel pipe; 13. paper cap; 14. zirconium oxide cell; 15. the first high temperature filler; 16. protection metal pipe; 17. oxygen determination lead negative pole; 18. carbon determination compensating wire negative pole; 19. the second high temperature filler; 20. plastic seating; 21. carbon determination thermopair; 22. molten steel crystalline carbon chamber; 23. signal outgoing cable; 24. protection steel bushing; 25. six core signals are inserted Cuo.
Embodiment
The floating type measuring temp of molten steel that falls certainly, oxygen determination, carbon determination combined probe that the utility model provides, the plant equipment operation by being installed on the revolving furnace fume hood falls in the molten steel certainly from charging hole, and floats and measure on molten steel.Its function can realize thermometric, oxygen determination and carbon determination respectively at a probe.Its structure is as shown in Figure 1: comprise thermometric, oxygen determination, three assemblies of carbon determination, they all are contained in first steel pipe 1, and this steel pipe also is the oxygen determination positive pole, and its body head is equipped with paper cap 13, and all the other place's skins of body are equipped with fire prevention paper tube 10 and protection metal pipe 16; Taper molten steel enters hole 9 and passes protection metal pipe 16, fire prevention paper tube 10 successively and be communicated with molten steel crystalline carbon chamber 22 in first steel pipe 1; A floating chamber 11 of filling wooden or other suspension embeds in the protection steel bushing 24.Protection steel bushing 24 is welded on second steel pipe 12, and this steel pipe head end links to each other with protection metal pipe 16 tail ends.
Described thermometric assembly comprises the plastic stent 4 that is arranged in the first high temperature filler 15; first quartz ampoule 3 that links to each other with plastic stent 4; and pass thermometric compensating wire positive pole 5, thermometric compensating wire negative pole 6 fixing in the hole of plastic stent 4 successively; can effectively protect cold junction temperature like this, guarantee the accuracy of thermometric.Product sold is equipped with cold junction box, complex manufacturing in the market, and the cost height.The termination of thermometric compensating wire positive pole 5, thermometric compensating wire negative pole 6 respectively with the two ends welding of the thermocouple wire of temperature thermocouple 2, temperature thermocouple 2 can be solidificated in first quartz ampoule 3 by resin sand, and is encapsulated in the head of first steel pipe 1 with the high temperature filler.Described thermometric assembly, its function are the temperature of measuring molten steel, and the thermometric range is at 1250 ℃ to 1750 ℃.
Described oxygen determination assembly comprises zirconium oxide cell 14, oxygen determination molybdenum filament negative electrode, oxygen determination lead negative pole 17 and first steel pipe 1.Zirconium oxide cell 14 is arranged in the first high temperature filler 15, and its negative electrode wire bonds is on the termination of oxygen determination lead negative pole 17, and the positive electrode lead-in wire is welded in the afterbody of first steel pipe 1.The first high temperature filler 15 can adopt one-shaping technique, makes it once to be filled in the pipe of first steel pipe 1, can guarantee the temperature homogeneity of described filler heating cure like this, has improved its thermal shock resistance.Product sold does not all once adopt forming technique in the market, and quality can not guarantee, the cost height is not energy-conservation.
The principle of work of described oxygen determination assembly: expression formula is Mo/Cr+Cr
2O
3//ZrO
2(MgO or CaO) //a (O) Fe/Fe, it is according to a tree name Nernst equation law (diffusion of oxygen concentration difference and balance equation), at the oxygen cell head Cr base contrast electrode is housed, after the oxygen cell head enters molten steel, the oxygen in the molten steel and the Cr base reference utmost point produce oxygen diffusion and balance, the oxygen electromotive force that produce this moment reaches calculating and demonstration that instrument is carried out oxygen content.This oxygen determination assembly can be measured more than molten steel oxygen content 50～1000ppm.
Described carbon determination assembly comprises the plastic seating 20 that is arranged in the second high temperature filler 19, second quartz ampoule 8 that links to each other with plastic seating 20, and pass carbon determination compensating wire positive pole 7, the carbon determination compensating wire negative pole of fixing in the hole of plastic seating 20 18 successively.The termination of carbon determination compensating wire positive pole 7, carbon determination compensating wire negative pole 18 respectively with the two ends welding of the thermocouple wire of carbon determination thermopair 21,, carbon determination thermopair 21 can be solidificated in second quartz ampoule 8 by resin sand, and encapsulates with the high temperature filler.Second quartz ampoule 8 is arranged in molten steel crystalline carbon chamber 22.
Described carbon determination assembly, its principle of work is: carbon determination thermopair 21 is according to the carbon iron balance principle, when molten steel enters hole 9 and enters molten steel crystalline carbon chamber 22 by the taper molten steel after, in the molten steel cools process, produce the Tc electromotive force, after this electronic heat is sent to instrument, can advances figure pattern and calculate carbon content of molten steel.
Thermocouple wire and quartz ampoule body in above-mentioned temperature thermocouple 2, first quartz ampoule 3, second quartz ampoule 8 and the carbon determination thermopair 21 have all passed through high temperature resistant processing, have guaranteed the accuracy and the repeatability of thermometric and carbon determination like this.Product sold does not all have high temperature resistance to handle in the market.
The outside of described protection metal pipe 16 is coated with one deck Al
3O
2High-temperature-resistant layer, Al
2O
3Be coated in the thermal shock resistance that can improve this probe behind outer cover metal protection tube 16 surfaces, make its shell stable not defeated and dispersed in the time of 1700 ℃, guaranteed that this probe thermometric, oxygen determination and carbon determination time are more than 10 seconds.Product sold is not taked this technology in the market, and its thermal shock resistance is bad, influences the normal use of product, even causes and measure failure.Al
2O
3The high-temperature-resistant layer outside encapsulates heat shrinkage film in addition, and this design can guarantee that this probe is not subjected to the influence of tidewater or damp vapour, does not need special baking box protection against the tide, for environmental protection, energy savings, is highly profitable.Product sold does not have this technology in the market.Each steel mill sets up special baking workshop, need set up huge baking system such as boiler, electric heating system, and this brings influence for environmental protection, and the electricity consumption heated baking increases energy resource consumption and cost of products.
The utility model is employed through the fire prevention paper tube 10 after the processing of frie retardant coating, in measuring use, the flame situation can not take place, and equipment breakdown can not take place, and guarantee that the survey of product becomes rate and precision.Product sold does not carry out the processing of frie retardant coating in the market, and flame takes place often, influences personal safety, causes and measures failure.
Has taked and 1 integrated design of first steel pipe in the anodal molten steel of the utility model oxygen loop, and paper cap 13 uses papery.This combined probe has reduced by a steel tin hat, after probe enters molten steel, can enter molten steel fast, guarantees and shifted to an earlier date to measure when finishing.Product sold in the market, employing be steel pipe and steel cap packing design, occur the steel cap often in using at the scene and come off, cause and measure failure.
The effect of the utility model main function components is as follows:
First steel pipe 1 (oxygen positive pole) function: the one, play the effect of the cured matrix of resin sand and part of devices, these devices comprise plastic stent 4, plastic seating 20, thermometric compensating wire positive pole 5, thermometric compensating wire negative pole 6, carbon determination compensating wire positive pole 7, paper cap 13, first quartz ampoule 3, carbon determination compensating wire negative pole 18.The 2nd, play the effect of molten steel oxygen loop positive pole.
Six core signal plugs, 25 functions: can make by plastics, oxygen signal output, the output of carbon determination signal, thermometric compensating wire positive pole 5, carbon determination compensating wire anodal 7 and the thermometric compensating wire negative pole 6 of temperature signal output, carbon determination compensating wire negative pole 20 have been inserted on it, after surveying the rifle plug and inserting six core signal plugs 25, the signal of signal outgoing cable 23 is sent to instrument.
Thermometric is repaid lead anodal 5 and anodal 7 functions of carbon determination compensating wire: thermocouple cold junction is compensated, and material is Cu (SPC).
13 functions of paper cap: when probe inserted molten steel, molten steel surface had slag, can prevent first steel pipe, 1 dry slag and influenced measurement.This protection sheet cap can use papery.
The function of zirconium oxide cell 14: it comprises zirconium pipe, Mo pin, Cr powder (these elements are contained in respectively in the zirconium pipe, water mudding mouth).Do partly stable tubular zirconium-oxide with magnesium oxide,, carry out the collection of oxygen amount according to the oxygen concentration cell principle.The material of zirconium oxide cell 14 is ZrO
2(MgO).
First high temperature filler 15 of thermometric assembly and the second high temperature filler of carbon determination assembly are set 19 functions: can protect the thermocouple wire in zirconium oxide cell 14, the cylindrical quartz pipe and the solder joint of compensating wire not to be subjected to temperatures involved, guarantee measuring accuracy.
Thermometric compensating wire negative pole 6 and 18 functions of carbon determination compensating wire negative pole: thermocouple cold junction is compensated material: CuNi (SNC).
The utility model course of work is as follows:
1. temperature survey:
After combined probe enters molten steel, 13 fusings of paper cap.Temperature thermocouple 2 contact molten steel, according to the thermocouple temperature measurement principle, pyrometer fire-end and cold junction produce thermopower, this electromotive force analog signals is through thermometric compensating wire anodal 5 and thermometric compensating wire negative pole 6, be transferred to computing machine by signal outgoing cable 23 again, through AD conversion back display digit temperature value, instruct the workman to carry out temperature with this and visit operation.
2. measurement of oxygen content:
After combined probe entered molten steel, zirconium oxide cell 14 contact molten steel according to oxygen concentration cell oxygen determination principle, produced the oxygen electromotive force signal.This signal is transferred to computing machine through first steel pipe 1 and oxygen determination lead negative pole 17, and after the AD conversion, display digit oxygen content value is carried out oxygen content observing and controlling operation to instruct the steelworker.
3. carbon content is measured (carbon is decided in crystallization):
After combined probe enters molten steel, carbon determination thermopair 21 contact molten steel, carbon determination thermopair 21 is according to the carbon iron balance principle, when molten steel enters hole 9 and enters molten steel crystalline carbon chamber 22 by the taper molten steel after, in the molten steel cools process, produce the Tc electromotive force, after this electronic heat is sent to instrument, can advances figure pattern and calculate carbon content of molten steel.
The course of work of the utility model integral body: adopt mechanically actuated, be mainly used in and measure liquid steel temperature, oxygen content and carbon content.Behind the start-up operation probe, instrument shows green pilot lamp, proves that probe is connected normally with the survey rifle, can test.After probe is fallen molten steel certainly, 13 fusings of probe head paper cap, first steel pipe 1, zirconium oxide cell 14, temperature thermocouple 2 contact molten steel.At this moment, zirconium oxide cell 14, temperature thermocouple 2 carry out data acquisition in the molten steel molten bath.Zirconium oxide cell 14 carries out data acquisition and millivolt signal is reached instrument according to the oxygen determination principle of oxygen concentration cell.The instrument software model carries out AD conversion back and shows the oxygen potential value.Temperature thermocouple is according to the thermocouple measurement principle, after analog signals is reached instrument and carries out the AD conversion, and the displays temperature digital quantity value.On the basis that oxygen potential value and temperature value are achieved success, instrument calculates molten steel oxygen content PPm value automatically.Carbon determination thermopair 21 is according to the carbon iron balance principle, when molten steel enters hole 9 and enters molten steel crystalline carbon chamber 22 by the taper molten steel after, in the molten steel cools process, produce the Tc electromotive force, after this electromotive force is sent to instrument, can advances figure pattern and calculate carbon content of molten steel.
The operator carries out the process for making operation according to the parameter of this probe test, guarantees that molten steel reaches the world and national normal value.
Claims (8)
1. one kind from fall floating type measuring temp of molten steel, oxygen determination, carbon determination combined probe, comprise thermometric, oxygen determination, three assemblies of carbon determination, it is characterized in that: three assemblies all are contained in first steel pipe (1), this steel pipe also is the oxygen determination positive pole, and its body head is equipped with paper cap (13), and all the other place's skins of body are equipped with fire prevention paper tube (10) and protection metal pipe (16); Taper molten steel enters hole (9) and passes protection metal pipe (16), fire prevention paper tube (10) successively and be communicated with molten steel crystalline carbon chamber (22) in first steel pipe (1); A floating chamber (11) is welded on second steel pipe (12), and this steel pipe head end links to each other with first steel pipe (1) tail end.
2. according to claim 1 from falling floating type measuring temp of molten steel, oxygen determination, the carbon determination combined probe, it is characterized in that the thermometric assembly comprises the plastic stent (4) that is arranged in the first high temperature filler (15), first quartz ampoule (3) that links to each other with plastic stent (4), and pass thermometric compensating wire positive pole (5) fixing in the hole of plastic stent (4) successively, thermometric compensating wire negative pole (6), weld with temperature thermocouple (2) two ends respectively the termination of this two lead, temperature thermocouple (2) is solidificated in first quartz ampoule (3) by resin sand, and is encapsulated in the head of first steel pipe (1) with the high temperature filler.
3. according to claim 2 from falling floating type measuring temp of molten steel, oxygen determination, carbon determination combined probe, it is characterized in that: thermocouple wire and quartz ampoule body in described temperature thermocouple (2), first quartz ampoule (3) have all passed through high temperature resistant processing.
4. according to claim 1 from falling floating type measuring temp of molten steel, oxygen determination, carbon determination combined probe, it is characterized in that the zirconium oxide cell (14) in the oxygen determination assembly is arranged in the first high temperature filler (15), its negative electrode wire bonds is on the termination of oxygen determination lead negative pole (17), and the positive electrode lead-in wire is welded in the afterbody of first steel pipe (1).
5. according to claim 1 from falling floating type measuring temp of molten steel, oxygen determination, the carbon determination combined probe, it is characterized in that the carbon determination assembly comprises the plastic seating (20) that is arranged in the second high temperature filler (19), second quartz ampoule (8) that links to each other with plastic seating (20), and pass carbon determination compensating wire positive pole (7) fixing in the hole of plastic seating (20) successively, carbon determination compensating wire negative pole (18), weld with the two ends of carbon determination thermopair (21) respectively the termination of this two lead, carbon determination thermopair (21) is solidificated in second quartz ampoule (8) by resin sand, and with high temperature filler encapsulation, second quartz ampoule (8) is arranged in molten steel crystalline carbon chamber (22).
6. according to claim 5 from falling floating type measuring temp of molten steel, oxygen determination, carbon determination combined probe, it is characterized in that: thermocouple wire and quartz ampoule body in described second quartz ampoule (8) and the carbon determination thermopair (21) have all passed through high temperature resistant processing.
7. according to claim 1 from falling floating type measuring temp of molten steel, oxygen determination, carbon determination combined probe, it is characterized in that: the outside of protection metal pipe (16) is coated with one deck Al
3O
2High-temperature-resistant layer, Al
3O
2The outside of high-temperature-resistant layer encapsulates heat shrinkage film in addition.
8. according to claim 1 from falling floating type measuring temp of molten steel, oxygen determination, carbon determination combined probe, it is characterized in that welding on second steel pipe (12) floating chamber (11) of filling wooden or other suspension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200878401U CN201145618Y (en) | 2007-10-30 | 2007-10-30 | Self-falling floating type liquid steel temperature, oxygen and carbon measurement compound probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200878401U CN201145618Y (en) | 2007-10-30 | 2007-10-30 | Self-falling floating type liquid steel temperature, oxygen and carbon measurement compound probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145618Y true CN201145618Y (en) | 2008-11-05 |
Family
ID=40082502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200878401U Expired - Fee Related CN201145618Y (en) | 2007-10-30 | 2007-10-30 | Self-falling floating type liquid steel temperature, oxygen and carbon measurement compound probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201145618Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438282A (en) * | 2022-02-09 | 2022-05-06 | 广东韶钢松山股份有限公司 | Composite probe, converter sublance and molten steel measuring method |
-
2007
- 2007-10-30 CN CNU2007200878401U patent/CN201145618Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438282A (en) * | 2022-02-09 | 2022-05-06 | 广东韶钢松山股份有限公司 | Composite probe, converter sublance and molten steel measuring method |
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