CN216012515U - Compound probe for measuring temperature, silicon and sample of molten iron - Google Patents
Compound probe for measuring temperature, silicon and sample of molten iron Download PDFInfo
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- CN216012515U CN216012515U CN202121670128.0U CN202121670128U CN216012515U CN 216012515 U CN216012515 U CN 216012515U CN 202121670128 U CN202121670128 U CN 202121670128U CN 216012515 U CN216012515 U CN 216012515U
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Abstract
The utility model relates to the technical field of ferrous metallurgy liquid metal component detection, in particular to an iron liquid temperature measuring, silicon measuring and sampling composite probe which comprises a ceramic ring carrier, wherein a temperature measuring element, a silicon measuring element and an iron liquid sampler are arranged in an inner cavity of the ceramic ring carrier, the heads of the temperature measuring element, the silicon measuring element and the iron liquid sampler extend outwards from the head of the ceramic ring carrier, a metal pipe is sleeved on the outer side wall of the tail of the ceramic ring carrier, a connector is fixedly arranged at the tail of the metal pipe, and the connector is respectively and electrically connected with the temperature measuring element and the silicon measuring element and transmits related detection signals to an analyzer for processing. The utility model can realize on-line detection and prediction of parameters of the temperature and the silicon activity of the smelting medium in the smelting process, changes the traditional low-efficiency operation mode of single temperature measurement and sampling, effectively detects the silicon content, can accurately predict the alloy addition and ensures the realization of effective control of the fine steel process.
Description
Technical Field
The utility model relates to the technical field of ferrous metallurgy melt component detection, in particular to a composite probe for measuring temperature, measuring silicon and sampling of molten iron.
Background
The process parameter acquisition, the temperature measurement and the sampling are carried out in a mode of manual single-branch temperature measurement and single-branch sampling, the operating efficiency is low, and the application of a temperature measurement, silicon measurement and sampling composite probe is lacked. On the other hand, the steel-making converter smelting process after iron making at present has high technical index requirements on elements such as carbon, silicon, manganese, phosphorus, sulfur and the like, and when the content of silicon in molten iron exceeds the standard, the service life of a furnace lining is influenced, and the oxygen blowing and slagging processes of the converter are influenced.
Therefore, the above problems are urgently needed to be improved, the detection means is further simplified, the multi-parameter acquisition is completed at one time, the high-efficiency detection of the silicon content is realized, the process control of steel smelting is better improved, the matching with the modern computer steel-smelting technology is met, and the quality of the smelted products is ensured.
Disclosure of Invention
The utility model aims to provide a molten iron temperature measuring, silicon measuring and sampling composite probe which can quickly realize multi-parameter detection and prediction of temperature, silicon activity and the like of a smelting medium in a smelting process, change the traditional single-branch temperature measuring and sampling operation mode, shorten sampling analysis time, ensure effective control of a fine steel process and effectively improve the quality of a smelting product.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides an iron liquid temperature measurement, survey silicon, sample combination probe, including the ceramic ring carrier, the inner chamber of ceramic ring carrier is equipped with temperature element, surveys silicon element and iron liquid sampler, temperature element, the head of surveying silicon element and iron liquid sampler are outwards extended from the head of ceramic ring carrier, ceramic ring carrier afterbody lateral wall cover is equipped with the tubular metal resonator, the afterbody of tubular metal resonator has set firmly the connector, the connector respectively with temperature element with survey silicon element electric connection to with relevant detection signal transmission to the analysis appearance processing.
According to the scheme, the temperature measuring element and the silicon measuring element are electrically connected with the connector through the compensating lead respectively, and the negative poles of the wires of the temperature measuring element and the silicon measuring element are welded on the common negative compensating lead.
According to the scheme, the temperature measuring element comprises a U-shaped quartz tube and a thermocouple element, the thermocouple element is arranged in the inner cavity of the quartz tube, the measuring end of the thermocouple element penetrates out of the U-shaped quartz tube from the inner hole of the U-shaped quartz tube and is sealed by high-temperature cement pouring, and the thermocouple element is electrically connected with the connector through a compensation lead.
According to the scheme, the silicon measuring element comprises a zirconia electrolyte tube, an auxiliary electrode coating, a molybdenum wire and a high-temperature filling material, wherein a reference electrode and the high-temperature filling material are filled in the zirconia electrolyte tube, the molybdenum needle is inserted into the reference electrode, and the auxiliary electrode coating is coated on the outer wall of the zirconia electrolyte tube
According to the scheme, the electrolyte of the zirconia electrolyte tube is ZrO2(CaO), the auxiliary electrode coating is SiO2+CaF2，The reference electrode is MoMoMoO2The high-temperature filling material is Al2O3。
According to the scheme, the iron liquid sampler is a cylindrical metal pipe, the inner cavity of the cylindrical metal pipe is provided with an opposite-nature cooling structure, and the side wall of the cylindrical metal pipe is provided with a liquid inlet hole.
According to the scheme, the distance between the head parts of the temperature measuring element, the silicon measuring element and the iron liquid sampler and the head part of the ceramic ring carrier is 15 mm.
According to the scheme, the tail parts of the temperature measuring element, the silicon measuring element and the iron liquid sampler have a space distance of 8mm with the tail part of the inner cavity of the ceramic ring carrier, so that high-temperature cement can be poured.
According to the scheme, resin coated sand is filled in the clearance space between the inner cavity of the ceramic ring carrier and the temperature measuring element, the silicon measuring element and the molten iron sampler, the outer surface of the ceramic ring carrier is coated with viscose glue and is sleeved and connected with the metal pipe
According to the scheme, the protective cap covers the upper part of the metal pipe, the silicon measuring element, the temperature measuring element 6 and the molten iron sampler can be sleeved in the metal pipe, the large paper pipe is sleeved on the outer surface of the metal pipe, and resin coated sand is filled in a gap between the large paper pipe and the metal pipe.
According to the composite probe for measuring temperature, measuring silicon and sampling molten iron, the temperature measuring element, the silicon measuring element and the molten iron sampler are integrated into a whole by adopting the ceramic ring carrier, so that parameters such as temperature, silicon activity and the like of a smelting medium can be detected on line in the steel smelting process, real-time on-line monitoring is realized, matching with a computer smelting process is realized, effective control of a fine steel process is ensured, the inefficient mode of traditional single-branch detection and sampling operation is changed, the sampling analysis time is effectively shortened, the labor cost is reduced, the smelting quality is improved, and the composite probe is suitable for efficient operation of steel smelting.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the detection process of the present invention;
in the figure: 1. testing a silicon element; 2. a ceramic ring carrier; 3. a metal tube; 4. a large paper tube; 5. a protective cap; 6. a temperature measuring element; 7. a liquid iron sampler; 8. a connector assembly.
Detailed Description
The technical solution of the present invention is described below with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the molten iron temperature measuring, silicon measuring and sampling composite probe comprises a ceramic ring carrier 2, a temperature measuring element 6, a silicon measuring element 1 and a molten iron sampler 7 are arranged in an inner cavity of the ceramic ring carrier 2, the heads of the temperature measuring element 6, the silicon measuring element 1 and the molten iron sampler 7 extend outwards from the head of the ceramic ring carrier 2, a metal tube 3 is sleeved on the outer side wall of the tail of the ceramic ring carrier 2, a connector 8 is fixedly arranged at the tail of the metal tube 3, and the connector 8 is electrically connected with the temperature measuring element 6 and the silicon measuring element 1 through compensating wires respectively and transmits related detection signals to an analyzer for processing. According to the utility model, the temperature measuring element, the silicon measuring element and the molten iron sampler are integrated into a whole through the ceramic ring carrier, so that the parameters of the temperature of a smelting medium and the silicon activity can be detected and predicted on line in the smelting process, the traditional low-efficiency operation mode of single-branch temperature measurement and sampling is changed, the silicon content can be effectively detected, the alloy addition amount can be accurately predicted, and the effective control of the process of fine steel can be ensured.
A plastic bracket is erected in the inner cavity of the ceramic ring carrier 2 and can be used for fixing the temperature measuring element 6, the silicon measuring element 1 and the molten iron sampler 7 to form an integral structure; the temperature measuring element 6 and the silicon measuring element 1 are respectively connected with a compensation lead, the compensation lead penetrates out of the tail part of the ceramic ring carrier 2 and is electrically connected with the connector 8, and the negative electrodes of the temperature measuring element 6 and the silicon measuring element 1 are welded on a common negative electrode compensation lead to form common negative electrode connection.
The temperature measuring element 6 comprises a U-shaped quartz tube and a thermocouple element, the thermocouple element is arranged in the inner cavity of the quartz tube, the measuring end of the thermocouple element penetrates out of the U-shaped quartz tube from the inner hole of the U-shaped quartz tube and is sealed by high-temperature cement pouring, and the free end of the thermocouple element is connected with a compensating lead. The thermocouple measuring end directly measures temperature, then transmits signals to the analyzer for processing through the connector 8, converts measured temperature signals into thermoelectromotive force signals, converts the thermoelectromotive force signals into temperature electric signals of a measured medium through intelligent calculation, and transmits the temperature electric signals to the display instrument for displaying. Specifically, the U-shaped quartz tube has the specification of
The outer span is 10mm and the analyzer is preferably a CJ-100 meter.
The silicon measuring element 1 comprises a zirconia electrolyte tube, an auxiliary electrode coating, a molybdenum wire and a high-temperature filling material, wherein the zirconia electrolyte tube is stabilized by calcium oxide, and the electrolyte is ZrO2(CaO), the zirconia electrolyte tube is filled with a reference electrode, and the reference electrode is Mo/MoO2The high-temperature filling material is Al2O3The molybdenum needle is inserted into the reference electrode, the auxiliary electrode coating is coated on the outer wall of the zirconia electrolyte tube, and the auxiliary electrode is SiO2+CaF2，The metal tubeAs a return electrode. Specifically, the manufacture of the silicon testing element comprises the following steps: placing the qualified zirconium tube in a template hole, weighing 190-220 mg of a reference electrode (Mo + MoO2) and placing the reference electrode into a zirconium oxide electrolyte tube, then placing Al2O3 material into the zirconium oxide electrolyte tube, inserting a molybdenum wire into the zirconium oxide electrolyte tube, compacting the zirconium oxide electrolyte tube, injecting a high-temperature filling material into the zirconium oxide electrolyte tube, drying the zirconium oxide electrolyte tube in an oven for 20 hours, and storing the zirconium oxide electrolyte tube for later use.
The molten iron sampler 7 is a cylindrical metal pipe, the inner cavity of the cylindrical metal pipe is provided with an anisotropic cooling structure, and the side wall of the cylindrical metal pipe is provided with a liquid inlet hole, so that the molten iron sampler can be used for collecting molten iron in the smelting process and is used for analyzing the components of the molten iron through spectrum.
The tail parts of the temperature measuring element 6, the silicon measuring element 1 and the molten iron sampler 7 are spaced from the tail part of the inner cavity of the ceramic ring carrier 2 by 8mm, and after the temperature measuring element 6 and the silicon measuring element 1 are respectively connected with the connector 8 through compensating wires, high-temperature cement is poured into the space of the tail part for curing protection. Resin coated sand is filled in the clearance space between the inner cavity of the ceramic ring carrier 2 and the temperature measuring element 6, the silicon measuring element 1 and the molten iron sampler 7, and the resin coated sand becomes loose after being soaked in molten iron but cannot be melted, so that the temperature measuring element 6, the silicon measuring element 1 and the molten iron sampler 7 can be effectively protected from being damaged by high temperature, and the molten iron sampler is convenient to take; the outer surface coating of ceramic ring carrier 2 has the viscose to establish with tubular metal resonator 3 cover and be connected, effectively improved the steadiness that tubular metal resonator 3 and ceramic ring carrier 2 are connected.
The distance between the head of the temperature measuring element 6, the head of the silicon measuring element 1 and the head of the molten iron sampler 7 and the head of the ceramic ring carrier 1 is 15mm, the length design is convenient for the detection element to be inserted into molten iron for detection and the external clamping of the metal tube 3, in the smelting process, the elements are inserted into the molten iron, the temperature and the silicon can be measured simultaneously, the early warning of the silicon content in body fluid is realized, the matching of the computer smelting process is realized, and the effective control of the fine steel process is ensured.
The upper portion of metal pipe 3 is covered with protective cap 5, can locate interior silicon element 1, temperature element 6 and molten iron sampler 7 cover, metal pipe 3 surface cover is equipped with big paper pipe 4, the space packing between big paper pipe 4 and metal pipe 3 has resin tectorial membrane sand. The detection element and the sampler may be protected before being used.
When the device is used on line, a measuring gun of the CJ-100 instrument is inserted into the paper tube from the tail of the probe to be connected with the connector 8, and when a green light of the CJ-100 instrument is on, the connection of a measuring loop is normal, and molten iron measurement can be carried out. Immersing a silicon measuring element 1 and a silicon measuring element 6 into molten iron, wherein the silicon measuring element 6 and the silicon measuring element 1 respectively generate simulated calorimetric electromotive force, the simulated calorimetric electromotive force is connected through a connector 8 and is transmitted to a CJ-100 instrument through a compensating lead, the instrument respectively calculates the temperature and the oxygen electromotive force of the molten iron through A/D conversion, and the CJ-100 instrument directly determines a silicon model through oxygen determination and calculates the silicon content of the molten iron. When the measured value is successfully sampled or reaches 8 seconds in the set time, the instrument gives an alarm and whistles at the red light, and the measurement is finished.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides an iron liquid temperature measurement, survey silicon, sample combination probe, a serial communication port, including ceramic ring carrier (2), the inner chamber of ceramic ring carrier (2) is equipped with temperature element (6), surveys silicon element (1) and iron liquid sampler (7), temperature element (6), the head of surveying silicon element (1) and iron liquid sampler (7) outwards extend from the head of ceramic ring carrier (2), ceramic ring carrier (2) afterbody lateral wall cover is equipped with tubular metal resonator (3), the afterbody of tubular metal resonator (3) has set firmly connector (8), connector (8) respectively with temperature element (6) and survey silicon element (1) electric connection to with relevant detected signal transmission to the analysis appearance is handled.
2. The molten iron temperature-measuring, silicon-measuring and sampling composite probe according to claim 1, wherein the temperature-measuring element (6) and the silicon-measuring element (1) are electrically connected with the connector (8) through compensating wires, respectively, and the negative electrodes of the wires of the temperature-measuring element (6) and the silicon-measuring element (1) are welded on a common negative compensating wire.
3. The molten iron temperature-measuring, silicon-measuring and sampling composite probe according to claim 2, wherein the temperature-measuring element (6) comprises a U-shaped quartz tube and a thermocouple element, the thermocouple element is arranged in the inner cavity of the quartz tube, the measuring end of the thermocouple element penetrates out of the inner hole of the U-shaped quartz tube and is sealed by high-temperature cement pouring, and the thermocouple element is electrically connected with the connector (8) through a compensating lead.
4. The molten iron temperature-measuring, silicon-measuring and sampling composite probe according to claim 2, wherein the silicon-measuring element (1) comprises a zirconia electrolyte tube, an auxiliary electrode coating, a molybdenum wire and a high-temperature filling material, the zirconia electrolyte tube is filled with a reference electrode and the high-temperature filling material, the molybdenum needle is inserted into the reference electrode, and the auxiliary electrode coating is coated on the outer wall of the zirconia electrolyte tube.
5. The composite probe for measuring temperature, measuring silicon and sampling of molten iron according to claim 4, wherein the electrolyte of the zirconia electrolyte tube is ZrO2(CaO), the auxiliary electrode coating is SiO2+CaF2，The reference electrode is MoMoMoO2The high-temperature filling material is Al2O3。
6. The composite probe for measuring temperature, measuring silicon and sampling of molten iron according to claim 1, wherein the molten iron sampler (7) is a cylindrical metal tube, the inner cavity of the cylindrical metal tube is provided with a heterogeneous cooling structure, and the side wall of the cylindrical metal tube is provided with a liquid inlet hole.
7. The molten iron temperature-measuring, silicon-measuring and sampling composite probe according to any one of claims 1 to 6, wherein the head of the temperature-measuring element (6), the silicon-measuring element (1) and the molten iron sampler (7) is 15mm away from the head of the ceramic ring carrier (2).
8. The molten iron temperature-measuring, silicon-measuring and sampling composite probe according to claim 7, wherein the tails of the temperature-measuring element (6), the silicon-measuring element (1) and the molten iron sampler (7) have a space distance of 8mm from the tail of the inner cavity of the ceramic ring carrier (2) for pouring high-temperature cement.
9. The molten iron temperature-measuring, silicon-measuring and sampling composite probe according to claim 8, wherein the clearance spaces between the inner cavity of the ceramic ring carrier (2) and the temperature-measuring element (6), the silicon-measuring element (1) and the molten iron sampler (7) are filled with resin coated sand, and the outer surface of the ceramic ring carrier (2) is coated with viscose glue and is sleeved and connected with the metal tube (3).
10. The molten iron temperature-measuring, silicon-measuring and sampling composite probe according to claim 9, wherein the upper part of the metal tube (3) is covered with a protective cap (5), the silicon-measuring element (1), the temperature-measuring element (6) and the molten iron sampler (7) can be sleeved inside, the outer surface of the metal tube (3) is sleeved with a large paper tube (4), and a gap between the large paper tube (4) and the metal tube (3) is filled with resin coated sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121670128.0U CN216012515U (en) | 2021-07-22 | 2021-07-22 | Compound probe for measuring temperature, silicon and sample of molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121670128.0U CN216012515U (en) | 2021-07-22 | 2021-07-22 | Compound probe for measuring temperature, silicon and sample of molten iron |
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| Publication Number | Publication Date |
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| CN216012515U true CN216012515U (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121670128.0U Active CN216012515U (en) | 2021-07-22 | 2021-07-22 | Compound probe for measuring temperature, silicon and sample of molten iron |
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| CN (1) | CN216012515U (en) |
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- 2021-07-22 CN CN202121670128.0U patent/CN216012515U/en active Active
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