CN1037210A - Molten steel continuous temperature measurement method - Google Patents
Molten steel continuous temperature measurement method Download PDFInfo
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- CN1037210A CN1037210A CN 89100977 CN89100977A CN1037210A CN 1037210 A CN1037210 A CN 1037210A CN 89100977 CN89100977 CN 89100977 CN 89100977 A CN89100977 A CN 89100977A CN 1037210 A CN1037210 A CN 1037210A
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- molten steel
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- temperature measurement
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- refrigerating gas
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Abstract
The invention belongs to the temperature measurement field.Mainly be applicable to the molten steel continuous temperature measurement.It is characterized in that adopting non-contact temperature sensor, and sensor is placed converter or contains the furnace wall at any position below the cylinder of steel liquid level or the gaging hole of bottom; By the photosensitization of sensor, in photoelectric effect input temp measurement instrument, change being shown as temperature to molten steel.In addition, be blown into refrigerating gas to molten steel, protect temperature sensor and prevent that molten steel from entering gaging hole by gaging hole.This method has been avoided the erosion action of molten steel to sensor, thereby the life-span is long, and can realize the molten steel continuous temperature measurement.
Description
The invention belongs to the temperature measurement field.Mainly be applicable to the continuous temperature measurement of molten steel.
The molten steel temperature METHOD FOR CONTINUOUS DETERMINATION is the problem of very gazing in the world, because it not only helps instructing smelting process, improves the quality and quantity of tapping, reduces energy resource consumption, can also guarantee safety in production simultaneously, improves converter life.Meaning is very big.
Because the molten steel temperature height, and have aggressivity, cause with thermoelectricity occasionally other its temperature of contact method METHOD FOR CONTINUOUS DETERMINATION be difficult to realize.Use general optical means, also can not realize the METHOD FOR CONTINUOUS DETERMINATION molten steel temperature owing to environmental interference.The main method of measuring molten steel temperature at present is to insert molten steel with thermopair, carries out transient measurement.This method platinum rhodium consumption is big, and labour intensity is big, and can not realize measuring serialization.Aspect the molten steel continuous temperature measurement, people did many-sided examination of repaying, but up to the present, did not all have the successful example of generally acknowledging.Once representationally in the proof molten steel continuous temperature measurement method be to adopt metallic ceramics protection of pipe thermopair and be the fiber optic sensor of contact with the jewel.With above-mentioned thermoelectricity occasionally sensor imbed steel-making the furnace wall, temperature-sensitive or photosensitive part are contacted, to reach the purpose of continuous temperature measurement with molten steel.Yet, remain because molten steel high temperature and aggressivity make that the above-mentioned temperature element life-span is very short, can not be used for practice.(temperature metering test book series (12) " temperature survey under the specific condition " Zhang Liru etc. writes China Measuring Press and publishes)
The object of the present invention is to provide a kind of (at least with furnace lining with labour) of long service life can METHOD FOR CONTINUOUS DETERMINATION the method for molten steel temperature.
In order to achieve the above object, technical spirit of the present invention is to adopt contactless temperature-measuring method, adopts technical measures again simultaneously, avoids or proofread and correct the influence of environment to thermometric.Concrete technical scheme is by converter or contain the cylinder of steel liquid level and stretch to molten steel with the gaging hole at any position of lower wall portion or bottom, so that accept the optical radiation of molten steel with temperature sensor.Temperature sensor adopts the inert gas cooling, and promptly gas is introduced gaging hole by the outside, through sensor, is blown in the molten steel, has both cooled off sensor, prevents that again molten steel from entering in the gaging hole.Temperature sensor maintains a certain distance with molten steel near molten steel, so just can prevent the harm to temperature sensor of molten steel high temperature and aggressivity.Also can avoid simultaneously the influence to thermometric such as slag, flue dust.Because it all is regular governed being blown into the variation of the working of a furnace in caused environmental change of blanket gas and the smelting process, they will be proofreaied and correct by Computer Processing the influence of thermometric.
The present invention has following advantage:
Temperature sensor can be avoided the direct erosion and the pollution of molten steel, long service life; Utilize the photoelectric effect and the temperature instrumentation of temperature sensor, can realize the molten steel continuous temperature measurement, thereby improve converter life; Can utilize the computing machine correction or proofread and correct molten steel and be blown into caused temperature variation of refrigerating gas and because converter or contain the cylinder of steel fire resistive material and lost temperature measurement error due to distance changes between caused temperature sensor and molten steel.Apparatus of the present invention long service life.
Description of drawings and embodiment
Accompanying drawing is the structural representation of molten steel continuous temperature measurement method.
1 is the sidewall or the bottom of converter or Sheng cylinder of steel among the figure, 2 is instrument connection, 3 is the refrigerating gas conduit, and 4 is refrigerating gas inflow point, and 5 is temperature sensor, 6 is temperature measuring instrument, 7 is computing machine, and 8 is molten steel, and 9 are the refrigerating gas flow direction, 10 is bracing ring, and 11 is the fire resistive material filler.Refrigerating gas conduit 3 is to be fixed on furnace wall or the furnace bottom by fire resistive material filler 11, and its end seals, and by bracing ring 10 fixed temperature sensors 5, the other end is an opening, directly facing to molten steel.
When molten iron is poured in the converter or solid steel material when beginning to melt, open the cooling gas valve, refrigerating gas enters refrigerating gas conduit 3 from refrigerating gas inflow point 4, on the one hand chilling temperature sensor 5, oppress molten steel on the one hand, prevent that molten steel from entering refrigerating gas conduit 3.When molten steel did not have conduit 3, the temperature sensor 5 in the conduit was by the light sensation to molten steel, and with photoelectric effect input temp measurement instrument 6, the gained data enter computing machine and proofread and correct the transient temperature value that just can obtain molten steel.
Claims (6)
1, a kind of device of molten steel continuous temperature measurement method is characterized in that being made up of temperature sensor, refrigerating gas conduit, temperature measuring instrument and computing machine.
2, device according to claim 1 is characterized in that cooling off the tranquil ridge taro of capsule and vigorously alarms and owe rampant small cup mould gruel and annotate pool and reveal but the sole flat stone with ropes attached at the sides of quarrelling and vigorously alarm strong and closely question mould benzene by the loyal bones of the body of illuminate buffalo gnat
3, according to claim 1 and 2 described devices, it is characterized in that the refrigerating gas conduit be fixed on converter by the fire resistive material filler contain the furnace wall at any position below the cylinder of steel liquid level or the instrument connection of furnace bottom in.
4, a kind of method of molten steel continuous temperature measurement is characterized in that transferring photoelectric effect to by the photosensitization of temperature sensor to molten steel, enters temperature measuring instrument machine correction as calculated again, surveys its molten steel temperature.
5, continuous temperature measurement method according to claim 4 is characterized in that adopting refrigerating gas that temperature sensor is protected, and prevents that simultaneously molten steel from entering instrument connection.
6, continuous temperature measurement method according to claim 4 is characterized in that proofreading and correct molten steel by computing machine is blown into caused temperature variation of refrigerating gas and because converter or contain the cylinder of steel fire resistive material and lost temperature measurement error due to distance changes between caused temperature sensor and molten steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100977 CN1037210A (en) | 1989-03-03 | 1989-03-03 | Molten steel continuous temperature measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100977 CN1037210A (en) | 1989-03-03 | 1989-03-03 | Molten steel continuous temperature measurement method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1037210A true CN1037210A (en) | 1989-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89100977 Pending CN1037210A (en) | 1989-03-03 | 1989-03-03 | Molten steel continuous temperature measurement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1037210A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232833A (en) * | 2014-08-21 | 2014-12-24 | 徐浩桐 | Oxygen top-blown converter steelmaking non-contact temperature measurement system and application method thereof |
| CN105369009A (en) * | 2015-12-18 | 2016-03-02 | 北京科技大学 | Temperature measuring system and method for on-line measurement of molten steel temperature in steelmaking process of electric-arc furnace |
| CN106662404A (en) * | 2014-08-21 | 2017-05-10 | Abb瑞士股份有限公司 | A system and a method for determining temperature of a metal melt in an electric arc furnace |
-
1989
- 1989-03-03 CN CN 89100977 patent/CN1037210A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232833A (en) * | 2014-08-21 | 2014-12-24 | 徐浩桐 | Oxygen top-blown converter steelmaking non-contact temperature measurement system and application method thereof |
| CN106662404A (en) * | 2014-08-21 | 2017-05-10 | Abb瑞士股份有限公司 | A system and a method for determining temperature of a metal melt in an electric arc furnace |
| US10190825B2 (en) | 2014-08-21 | 2019-01-29 | Abb Schweiz Ag | System and method for determining temperature of a metal melt in an electric arc furnace |
| CN105369009A (en) * | 2015-12-18 | 2016-03-02 | 北京科技大学 | Temperature measuring system and method for on-line measurement of molten steel temperature in steelmaking process of electric-arc furnace |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
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