CN2338739Y - Thermo-couple for continuously testing temp. of molten steel in steel smelting furnace - Google Patents
Thermo-couple for continuously testing temp. of molten steel in steel smelting furnace Download PDFInfo
- Publication number
- CN2338739Y CN2338739Y CN 98227343 CN98227343U CN2338739Y CN 2338739 Y CN2338739 Y CN 2338739Y CN 98227343 CN98227343 CN 98227343 CN 98227343 U CN98227343 U CN 98227343U CN 2338739 Y CN2338739 Y CN 2338739Y
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- temperature
- molten steel
- steel
- thermocouple
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Abstract
The utility model introduces a thermocouple for continuously testing temperature of molten steel in a steel smelting furnace, which is composed of two cermet rod (2) and (3), a stainless steel outer sleeve (6), fireproof material filler (5), connecting leads (7) and a temperature display instrument (8). The thermocouple of the utility model can be connected to a computer for continuously testing the temperature change of molten steel of a smelting process in a steel smelting furnace, the process of a steel smelting can be monitored and controlled, the automatic degree of a steel smelting production process can be increased, and the productivity can be increased. The thermocouple of the utility model can also be used for continuously testing the temperature of molten steel in a blast furnace, an electric furnace, a ladle and a tundish and continuously testing the temperature of fused masses of other high temperature metals. The utility model can be especially used in various metal smelting furnaces which can not be tested by a common thermocouple, and the purpose of continuous temperature test of high temperature liquid metals can be achieved.
Description
The utility model belongs to the metal smelt technical field, is specially a kind of thermopair that is used for the continuous temperature measurement of steelmaking process.
Present thermopair prior art overview both domestic and external is that after the thermo wires welding of two unlike materials of employing, the outside is formed with a resistant to elevated temperatures protective casing on the thermocouple structure.In field of metallurgy, because condition of work is abominable, the method for measuring temp of molten steel generally adopts a segmentation expendable thermometric, when needing thermometric, with a temperature-measuring gun, front end is adorned a temperature measuring head, directly insert 5 seconds in the molten steel, every thermometric once just must change a thermocouple temperature measurement head.There is the people that the material of the protective casing of this structure has been done improvement in recent years, adopts resistant to elevated temperatures protective casing, imbed then and measure liquid steel temperature in the molten steel.But the protective casing material is short serviceable life, costs an arm and a leg, and seldom is used for large-scale industrial production.Adopt protective casing structural type thermopair in addition, can not carry out continuous temperature measurement under the condition of work in converter at all.Because fire resistive material can constantly be etched in the converter, protective casing also can be disconnected along with being etched or being bumped by furnace charge, and thermopair is damaged, and can not continuous temperature measurement.
The utility model purpose is to provide a kind of and can be installed in the various converters, the thermopair of long-term continuous coverage liquid steel temperature.
The utility model mainly contains two metallic ceramics rods (2), (3), stainless steel outer sleeve pipe (6), and fire resistive material filling material (5) connects lead (7) and temperature indicator (8) and forms.Thermocouple well (9) is to be placed in the stainless steel outer sleeve pipe (6) by two metallic ceramics rods (2), (3), and two metallic ceramics rods (2), (3) use fire resistive material filling material (5) to fill tamping with fixed composition all around.Thermopair work cardinal principle is to adopt not weld metal ceramic rod (2), (3) conduct of two unlike materials, temperature element, form a loop with the molten steel (1) of liquid state, utilize the thermoelectrical potential that produces on metallic ceramics rod (2), (3) and molten steel (1) surface of contact and the relation of temperature, detect the temperature of molten steel (1).Principal character of the present utility model, foot two metallic ceramics rods (2), (3) need not welded, and directly insert in the molten steel (1), and tested liquid molten steel (1) inserts the loop as the 3rd conductor, forms a complete thermopair.Two metallic ceramics rods (2), (3) are high temperature resistant, the erosion of anti-molten steel and slag, and can be worn or bump and have no progeny, remaining part still and molten steel (1) continue to form a complete thermopair together, do not influence the normal measuring process and the measuring accuracy of thermopair.Be further described below in conjunction with accompanying drawing:
Figure one: utility model thermocouple structure synoptic diagram.
Wherein: 1. high-temperature molten steel, 2. metallic ceramics rod (A), 3. metallic ceramics rod (B), 4. furnace lining, 5. fire resistive material filling material, 6. the stainless steel outer sleeve pipe 7. connects lead, 8. temperature indicator, 9. thermocouple well.
The metallic ceramics rod (2) of thermopair, (3) diameter 3～10mm, length is decided according to actual conditions, the material that the material that the material of metallic ceramics rod (2) can adopt zirconium diboride and molybdenum to form, the material of metallic ceramics rod (3) can adopt zirconium diboride and tungsten to form.At a distance of 5～10mm, be placed in the thin-wall stainless steel outer tube (6) of a 20～40mm between two metallic ceramics rods (2), (3), use fire resistive material filling material (5) to fill tamping all around.Thermocouple well (9) can be imbedded in the furnace lining (4) of converter, also can directly insert in the molten steel (1), two metallic ceramics rods (2) of thermocouple well (9) front end expose furnace lining (4) with (3) and contact with molten steel (1), and and molten steel (1) form the closed-loop path of thermopair together.Thermocouple well (9) rear end is connected to temperature display meter (8) with two leads (7).In use, the front end of thermocouple well (9) can constantly be consumed or wear away with furnace lining, the remaining part of two metallic ceramics rods (2), (3) still can and molten steel (1) form thermopair, normal thermometric.
The utility model thermopair can be connected on the computing machine, and the liquid steel temperature of smelting process changes in the continuous detecting converter, and steelmaking process is monitored and controls, and improves the automaticity of STEELMAKING PRODUCTION process, boosts productivity.The utility model thermopair also can be applicable to the continuous measurement of molten steel temperature in blast furnace, electric furnace, ladle and the tundish, and the continuous temperature measurement of other high-temperature metal melts, can be used in completely especially the ordinary hot galvanic couple can't the various Metal Melting furnaces of thermometric in, the purpose of the liquid metal continuous temperature measurement that reaches a high temperature.
Claims (2)
1. one kind is used for continuous measurement of molten steel temperature thermopair in the converter, it is characterized in that: with two metallic ceramics rods (2), (3) be placed in the thin-wall stainless steel outer tube (6), metallic ceramics rod (2), (3) use fire resistive material filling material (5) to fill tamping all around, form thermocouple well (9), thermocouple well (9) can be imbedded in the furnace lining (4) of converter, also can directly insert in the molten steel (1), two metallic ceramics rods (2) of thermocouple well (9) front end, (3) expose furnace lining (4) and contact with molten steel (1), thermocouple well (9) rear end is connected on the temperature display meter (8) with two leads (7).
2. thermopair according to claim 1 is characterized in that: the material that the material that the material of metallic ceramics rod (2) can adopt zirconium diboride and molybdenum to form, the material of metallic ceramics rod (3) can adopt zirconium diboride and tungsten to form.Between two metallic ceramics rods (2), (3) at a distance of 5～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227343 CN2338739Y (en) | 1998-07-16 | 1998-07-16 | Thermo-couple for continuously testing temp. of molten steel in steel smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227343 CN2338739Y (en) | 1998-07-16 | 1998-07-16 | Thermo-couple for continuously testing temp. of molten steel in steel smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2338739Y true CN2338739Y (en) | 1999-09-15 |
Family
ID=33977671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98227343 Expired - Fee Related CN2338739Y (en) | 1998-07-16 | 1998-07-16 | Thermo-couple for continuously testing temp. of molten steel in steel smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2338739Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975621A (en) * | 2010-09-07 | 2011-02-16 | 北京航空航天大学 | Smelting temperature real-time measuring system suitable for high-activity metal smelting substances in course of vacuum induction smelting |
| CN114309496A (en) * | 2021-11-22 | 2022-04-12 | 中冶赛迪工程技术股份有限公司 | Sensor packaging and detecting method of crystallizer |
-
1998
- 1998-07-16 CN CN 98227343 patent/CN2338739Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975621A (en) * | 2010-09-07 | 2011-02-16 | 北京航空航天大学 | Smelting temperature real-time measuring system suitable for high-activity metal smelting substances in course of vacuum induction smelting |
| CN101975621B (en) * | 2010-09-07 | 2012-03-21 | 北京航空航天大学 | Smelting temperature real-time measuring system suitable for high-activity metal smelting substances in course of vacuum induction smelting |
| CN114309496A (en) * | 2021-11-22 | 2022-04-12 | 中冶赛迪工程技术股份有限公司 | Sensor packaging and detecting method of crystallizer |
| CN114309496B (en) * | 2021-11-22 | 2023-12-19 | 中冶赛迪工程技术股份有限公司 | Sensor package and detection method of crystallizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |