CN105063282A - Online temperature measuring device and method for VD refining furnace - Google Patents

Online temperature measuring device and method for VD refining furnace Download PDF

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Publication number
CN105063282A
CN105063282A CN201510503157.0A CN201510503157A CN105063282A CN 105063282 A CN105063282 A CN 105063282A CN 201510503157 A CN201510503157 A CN 201510503157A CN 105063282 A CN105063282 A CN 105063282A
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China
Prior art keywords
refining furnace
temperature
orienting sleeve
temperature measurement
line device
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CN201510503157.0A
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CN105063282B (en
Inventor
司兴奎
刘殿山
胡明春
焦连亮
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Tongyu Heavy Industry Co Ltd
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Tongyu Heavy Industry Co Ltd
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  • Treatment Of Steel In Its Molten State (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

An online temperature measuring device for a VD refining furnace comprises a support. The online temperature measuring device is characterized in that the support comprises a fixed support and a movable support movably connected with the fixed support, wherein a guide sleeve is arranged on one side of the fixed support, a sealing device is arranged at the upper end of the guide sleeve, and a water cooling device is arranged at the lower end of the guide sleeve; a telescopic rod is arranged on one side of the movable support and is exactly inserted in the guide sleeve, a temperature measuring gun is arranged at one end of the telescopic rod, and the temperature measuring gun is connected with a temperature instrument. The temperature of molten steel can be measured in real time in a vacuum state.

Description

A kind of VD refining furnace temperature measurement on-line device and temp measuring method
Technical field
The present invention relates to a kind of VD refining furnace temperature measuring equipment.The invention still further relates to the temp measuring method of VD refining furnace.
Background technology
The most of Special Steel Enterprise through the degassed production of VD refining furnace of Present Domestic is all after VD is degassed, carry out thermometric operation at molten steel again.If degassed end, temperature is too high has two kinds of ways to lower the temperature, and one is after VD breaks sky, utilizes ladle bottom argon gas to stir and lowers the temperature.But the process stirred, makes molten steel surface exposed unavoidably, causes secondary oxidation of steel, impact steel quality; The second again carries out after molten steel breaks sky being degassedly pumped through journey again, causes the waste of steam unavoidably, increase consumption.
Summary of the invention
The present invention will deal with problems a kind of VD refining furnace temperature measurement on-line device being to provide and can measuring liquid steel temperature under vacuum conditions in real time.Meanwhile, the present invention also provides a kind of VD refining furnace temperature measurement on-line method.
In order to solve the problem, the solution of the present invention is: a kind of VD refining furnace temperature measurement on-line device, comprise support, it is characterized in that, the travel(l)ing rest that described support comprises fixed support and is flexibly connected with it, described support bracket fastened side is provided with orienting sleeve, and the upper end of described orienting sleeve is provided with tightness system, and the lower end of described orienting sleeve is provided with water cooling plant;
Described travel(l)ing rest side is provided with expansion link, and described expansion link inserts in orienting sleeve just, and described expansion link one end is provided with temperature-measuring gun, and described temperature-measuring gun connects thermometric instrument.
Further, described tightness system comprises the seal cartridge of orienting sleeve upper end, is uniformly distributed some O RunddichtringOs in seal cartridge from top to bottom, and described seal cartridge lower end is provided with slagging-off cutter.
Further, described water cooling plant comprises water-in and water outlet, and described water-in and water outlet are by water-cooled valve gate control.
Further, described temperature-measuring gun is provided with hollow interlayer.
Further, described fixed support and travel(l)ing rest hinged, fixed support top is provided with can the stop means of restraint support FROM.
Further, described support, orienting sleeve, expansion link and temperature-measuring gun are all in same plane.
Further, the distance of described fixed support and orienting sleeve equals the distance of travel(l)ing rest and expansion link, and the diameter of described temperature-measuring gun is less than the diameter of expansion link.
Further, travel(l)ing rest is provided with balance weight iron.
A kind of VD refining furnace temperature measurement on-line method, comprises the following steps successively:
Ladle is seated in tank body by step (1), orienting sleeve and water cooling plant is fixed on cover upper center place.
Step (2) is by vacuum outgas in tank body, and open cold valves during before vacuum outgas completes 1 ~ 3 minute, then quick insertion temperature-measuring gun is to liquid steel level height.
Step (3), thermometric 3 ~ 8s, extracts temperature-measuring gun fast and closes water cooling plant, and travel(l)ing rest is returned to horizontality.
Step (4), reads molten steel real time temperature by temperature instrumentation, determines whether brokenly empty or continue degassed according to technological temperature height.
Beneficial effect of the present invention is: can measure liquid steel temperature in real time under vacuum conditions,
Present method is convenient and simple simultaneously, can understand liquid steel temperature in real time, avoid secondary to take out again and secondary oxidation process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is orienting sleeve cross-sectional schematic of the present invention.
In figure, fixed support 11, travel(l)ing rest 12, orienting sleeve 2, expansion link 4,
Temperature-measuring gun 5, thermometric instrument 6, balance weight iron 7, tank body 8, fills with lid 9, hydraulic stem 10, seal cartridge 31, slagging-off cutter 32, sealing-ring 33, water-in 41, water outlet 42, water-cooled valve 43.
Embodiment
Illustrate below in conjunction with accompanying drawing and with embodiment, the present invention to be further described.
As illustrated in fig. 1 and 2, a kind of VD refining furnace temperature measurement on-line device, comprise support, it is characterized in that, the travel(l)ing rest 12 that described support comprises fixed support 11 and is flexibly connected with it, the side of described fixed support 11 is provided with orienting sleeve 2, and the upper end of described orienting sleeve 2 is provided with tightness system, and the lower end of described orienting sleeve is provided with water cooling plant;
Described travel(l)ing rest 12 side is provided with expansion link 4, and described expansion link 4 can insert in orienting sleeve 2 just, and described expansion link 4 one end is provided with temperature-measuring gun 5, and described temperature-measuring gun 5 connects thermometric instrument 6.
Wherein, described tightness system comprises the seal cartridge 31 of orienting sleeve 2 upper end, is uniformly distributed some O RunddichtringOs 33 in seal cartridge 31 from top to bottom, and described seal cartridge 31 lower end is provided with slagging-off cutter 32.Wherein said water cooling plant comprises water-in 41 and water outlet 42, and described water-in 41 and water outlet 42 are by water-cooled valve gate control 43, and wherein said temperature-measuring gun 5 is provided with hollow interlayer.
Wherein said support, orienting sleeve 2, expansion link 4 and temperature-measuring gun 5 are all in same plane.Described fixed support 11 and the distance of orienting sleeve 2 equal the distance of travel(l)ing rest 12 and expansion link 4, and the diameter of described temperature-measuring gun 5 is less than the diameter of expansion link 4.Expansion link 4 can insert in orienting sleeve 2 just, fixed support 11 is hinged with travel(l)ing rest 12, fixed support 11 top is provided with can the stop means of restraint support 12 FROM, fixed support 11 is 90 ° ~ 180 ° with the scope of activity of travel(l)ing rest 12, and travel(l)ing rest 12 is also provided with balance weight iron 7.
Temperature-measuring gun 5 water-cooled valve 43 before insertion tank body 8 inside is closing conditions, time during insertion in tank body 8, the hollow interlayer of temperature-measuring gun 5 just in time combines with seal cartridge 31, form trim, at this moment water-cooled valve 43 being opened temperature-measuring gun 8 moves down until pre-set liquid steel level carries out thermometric, thermometric terminates temperature-measuring gun 8 moves, for temperature-measuring gun 8 cannot be extracted by molten steel splashing temperature-measuring gun outside surface steel bonding when preventing thermometric smoothly, the slagging-off cutter 32 below seal cartridge 33 is utilized temperature-measuring gun 8 outside surface to be cleaned out the sealing-ring 32. preventing from scratching in seal cartridge 31
Utilize device in Fig. 1 can use following temp measuring method:
Ladle is seated in tank body 8 by step (1), and orienting sleeve 2 and water cooling plant 3 are fixed on cover 9 upper center place, and now fixed support and orienting sleeve are parallel to each other.
Step (2) is by vacuumize degassing in tank body, to fetch boiling water during before vacuum outgas completes 2 minutes device for cooling 3, utilize hydraulic stem 10 fixed support 11 and the angle of travel(l)ing rest 12 to be adjusted to 180 ° and then extend expansion link 4 fast and insert temperature-measuring gun 5 to liquid steel level height.
Step (3), thermometric 5s, extracts temperature-measuring gun 5 fast and closes water cooling plant, and with the use of hydraulic stem 10 and balance weight iron 7, travel(l)ing rest 12 is returned to horizontality and adjust to 90 ° by fixed support 11 and the angle of travel(l)ing rest 12.
Step (4), reads molten steel real time temperature by temperature instrumentation 6, determines whether brokenly empty or continue degassed according to technological temperature height.

Claims (9)

1. a VD refining furnace temperature measurement on-line device, comprise support, it is characterized in that, the travel(l)ing rest (12) that described support comprises fixed support (11) and is flexibly connected with it, the side of described fixed support (11) is provided with orienting sleeve (2), the upper end of described orienting sleeve (2) is provided with tightness system, and the lower end of described orienting sleeve is provided with water cooling plant;
Described travel(l)ing rest (12) side is provided with expansion link (4), and described expansion link (4) inserts in orienting sleeve (2) just, and described expansion link (4) one end is provided with temperature-measuring gun (5), and described temperature-measuring gun (5) connects thermometric instrument (6).
2. a kind of VD refining furnace temperature measurement on-line device according to claim 1, it is characterized in that, described tightness system comprises the seal cartridge (31) of orienting sleeve (2) upper end, be uniformly distributed some O RunddichtringOs (33) in seal cartridge (31) from top to bottom, described seal cartridge (31) lower end is provided with slagging-off cutter (32).
3. a kind of VD refining furnace temperature measurement on-line device according to claim 1, it is characterized in that, described water cooling plant comprises water-in (41) and water outlet (42), and described water-in (41) and water outlet (42) are controlled by water-cooled valve (43).
4. a kind of VD refining furnace temperature measurement on-line device according to claim 1, it is characterized in that, described temperature-measuring gun (5) is provided with hollow interlayer.
5. a kind of VD refining furnace temperature measurement on-line device according to claim 1, it is characterized in that, described fixed support (11) and travel(l)ing rest (12) are hinged, and fixed support (11) top is provided with can the stop means of restraint support (12) FROM.
6. a kind of VD refining furnace temperature measurement on-line device according to claim 1, it is characterized in that, described support, orienting sleeve (2), expansion link (4) and temperature-measuring gun (5) are all in same plane.
7. a kind of VD refining furnace temperature measurement on-line device according to claim 1, it is characterized in that, described fixed support (11) equals the distance of travel(l)ing rest (12) and expansion link (4) with the distance of orienting sleeve (2), and the diameter of described temperature-measuring gun (5) is less than the diameter of expansion link (4).
8. a kind of VD refining furnace temperature measurement on-line device according to claim 1, it is characterized in that, travel(l)ing rest (12) is provided with balance weight iron (7).
9. utilize an a kind of VD refining furnace temperature measurement on-line device VD refining furnace temperature measurement on-line method described in claim 1, comprise the following steps:
Ladle is seated in tank body by step (1), orienting sleeve and water cooling plant is fixed on cover upper center place;
Step (2) is by vacuum outgas in tank body, and open cold valves during before vacuum outgas completes 1 ~ 3 minute, then quick insertion temperature-measuring gun is to liquid steel level height;
Step (3), thermometric 3 ~ 8s, extracts temperature-measuring gun fast and closes water cooling plant, and travel(l)ing rest is returned to horizontality;
Step (4), reads molten steel real time temperature by temperature instrumentation, determines whether brokenly empty or continue degassed according to technological temperature height.
CN201510503157.0A 2015-08-17 2015-08-17 A kind of VD refining furnaces temperature measurement on-line device and temp measuring method Active CN105063282B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105779702A (en) * 2016-05-25 2016-07-20 莱芜钢铁集团电子有限公司 VD furnace with molten steel temperature control device and control method of VD furnace

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200982894Y (en) * 2006-12-12 2007-11-28 苏州新长光热能科技有限公司 Heat coupler device for measuring aluminum liquid temperature of aluminum smelting furnace and heat preservation furnace
CN101337273A (en) * 2008-08-12 2009-01-07 赫勇 Pouring box stopper for continuous casting
CN201924040U (en) * 2010-12-22 2011-08-10 无锡东雄重型电炉有限公司 Top blowing oxygen lance device
CN202092475U (en) * 2011-06-08 2011-12-28 岳阳市巴陵节能炉窑工程有限公司 Automatic lifting temperature measurement device
CN202582179U (en) * 2012-05-21 2012-12-05 洛阳八佳电气科技股份有限公司 Swinging type temperature measuring mechanism for vacuum melting rapid-hardening furnace
CN202643741U (en) * 2012-07-05 2013-01-02 中冶赛迪工程技术股份有限公司 Thread feeding device for vacuum refining device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200982894Y (en) * 2006-12-12 2007-11-28 苏州新长光热能科技有限公司 Heat coupler device for measuring aluminum liquid temperature of aluminum smelting furnace and heat preservation furnace
CN101337273A (en) * 2008-08-12 2009-01-07 赫勇 Pouring box stopper for continuous casting
CN201924040U (en) * 2010-12-22 2011-08-10 无锡东雄重型电炉有限公司 Top blowing oxygen lance device
CN202092475U (en) * 2011-06-08 2011-12-28 岳阳市巴陵节能炉窑工程有限公司 Automatic lifting temperature measurement device
CN202582179U (en) * 2012-05-21 2012-12-05 洛阳八佳电气科技股份有限公司 Swinging type temperature measuring mechanism for vacuum melting rapid-hardening furnace
CN202643741U (en) * 2012-07-05 2013-01-02 中冶赛迪工程技术股份有限公司 Thread feeding device for vacuum refining device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105779702A (en) * 2016-05-25 2016-07-20 莱芜钢铁集团电子有限公司 VD furnace with molten steel temperature control device and control method of VD furnace

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Denomination of invention: Online temperature measuring device and method for VD refining furnace

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Denomination of invention: An on line temperature measuring device and method for VD refining furnace

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Denomination of invention: An online temperature measurement device and method for VD refining furnace

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