CN113607296A - Temperature sensor for monitoring blast furnace iron runner - Google Patents
Temperature sensor for monitoring blast furnace iron runner Download PDFInfo
- Publication number
- CN113607296A CN113607296A CN202110823714.2A CN202110823714A CN113607296A CN 113607296 A CN113607296 A CN 113607296A CN 202110823714 A CN202110823714 A CN 202110823714A CN 113607296 A CN113607296 A CN 113607296A
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- CN
- China
- Prior art keywords
- thermocouple
- temperature
- blast furnace
- conduit
- iron runner
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/026—Arrangements for signalling failure or disconnection of thermocouples
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a temperature sensor for monitoring a blast furnace iron runner, which comprises a fixing device and a thermocouple device arranged in the fixing device; the thermocouple device comprises a thermocouple and a temperature probe installed at the front end of the thermocouple, wherein an elastic pressing mechanism is arranged in the fixing device, the temperature probe at the front end of the thermocouple extends out of the fixing device in an elastic pressing mode through the elastic pressing mechanism, and the temperature of a blast furnace iron runner is measured through the temperature probe at the front end. When the temperature measuring device is used for measuring temperature, the fixing clamping sleeve is fixed, the temperature measuring probe of the thermocouple extends out and is tightly pressed on the temperature measuring copper plate, and the temperature measuring probe at the front end of the thermocouple can be tightly contacted with the temperature measuring copper plate no matter the temperature measuring copper plate contracts inwards or expands outwards, so that the temperature measuring precision is effectively improved.
Description
Technical Field
The invention relates to the field of ironmaking technical equipment, in particular to a temperature sensor for monitoring a blast furnace iron runner.
Background
China is a big iron and steel country, and the demand for blast furnace ironmaking is very large. In the field of blast furnace ironmaking technology, the tapping runner is an important component of a blast furnace ironmaking system, the most important of which is the main tapping runner, which is also the most vulnerable part of the blast furnace tapping runner's liner.
The main reason is that the turbulent flow zone 2-6 m away from the taphole and the bottom lining of the skimmer are damaged more quickly due to the mechanical erosion and corrosion of molten iron and slag at high temperature, and the erosion monitoring of the blast furnace iron runner is difficult due to the different erosion resistance of the iron runner castable made of different materials, and the existing monitoring mode is mainly temperature monitoring.
The temperature monitoring is that a temperature sensor is arranged on the side wall of the iron runner, the temperature is monitored in real time, and when the temperature is detected to exceed a preset value, an alarm is given; at present, the temperature sensor for monitoring the iron runner is mainly adopted, and the sensor is a temperature sensor for monitoring the iron runner, which can extend into a working lining of the blast furnace iron runner for detection.
The temperature probe of the stable sensor penetrates through the guide sleeve and extends out of the connecting pipe, and can extend into a working lining of a blast furnace iron runner for direct detection. However, the prior art has many disadvantages, for example, the temperature measuring probe can not be supported against the temperature measuring plate in real time, which results in inaccurate temperature measurement; in addition, the whole device is inconvenient to install, is difficult to replace after being damaged, has long maintenance and replacement period and the like, and limits industrial application.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects of the prior art, the temperature sensor for monitoring the blast furnace iron runner is provided; the temperature measurement is accurate, and the dismouting is changed conveniently.
The technical scheme is as follows: in order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a temperature sensor for monitoring a blast furnace iron runner comprises a fixing device and a thermocouple device arranged in the fixing device; the thermocouple device comprises a thermocouple and a temperature probe installed at the front end of the thermocouple, wherein an elastic pressing mechanism is arranged in the fixing device, the temperature probe at the front end of the thermocouple extends out of the fixing device in an elastic pressing mode through the elastic pressing mechanism, and the temperature of a blast furnace iron runner is measured through the temperature probe at the front end.
The thermocouple device also comprises a fixed clamping sleeve; the rear end of the thermocouple is arranged in the fixed clamping sleeve and correspondingly extends out of the fixed clamping sleeve, the temperature measuring probe extends out of the wire seat of the wire conduit under the action of the elastic pressing mechanism, and the upper end of the wire conduit is correspondingly detachably mounted with the fixed clamping sleeve.
Furthermore, the elastic pressing mechanism comprises a stop block arranged at the tail end of the temperature measuring probe and a compression spring arranged between the stop block and the fixed cutting sleeve.
The thermocouple is sleeved in the compression spring, the compression spring is correspondingly sleeved in the wire tube, the temperature measuring probe extends out of the wire seat under the action of the compression spring, and the stop block is correspondingly stopped by the wire seat.
Furthermore, a fixing seat is further installed at the middle upper part of the conduit.
Furthermore, the upper end of the conduit is also provided with a fixed buckle, and the conduit and the fixed clamping sleeve are detachably mounted through the arranged fixed buckle.
Furthermore, the whole thermocouple adopts a structural form of an armored thermocouple with an external lead, a temperature probe at the front end of the thermocouple is connected with and provided with a compensation lead, and the rear end of the thermocouple is correspondingly connected with and provided with a single-stranded soft cable.
Furthermore, the thermocouple and the compensation lead are installed in an automatic locking plug type structure, and the compensation lead is arranged in the compression spring.
Has the advantages that: compared with the prior art, the invention has the following advantages:
(1) the device comprises a fixing device and a thermocouple device, wherein an elastic pressing mechanism is arranged in the fixing device, a fixing clamping sleeve and a wire conduit are detachably mounted, a temperature measuring probe at the front end of the thermocouple extends out of a wire guide seat under the action of a compression spring in the elastic pressing mechanism, the fixing clamping sleeve is fixed during temperature measurement, the temperature measuring probe of the thermocouple extends out and tightly presses on a temperature measuring plate, and the temperature measuring probe at the front end of the thermocouple can be tightly contacted with a temperature measuring copper plate no matter the temperature measuring plate contracts inwards or expands outwards, so that the temperature measuring precision is effectively improved;
(2) fixing device and thermocouple device demountable installation in this device, inside thermocouple passes through the pressure spring top tightly, fixed cutting ferrule and conduit are through fixed buckle demountable installation, when the thermocouple trouble, push down the spring, unscrew fixed cutting ferrule, direct whole thermocouple of taking out is maintained, easy operation is convenient, and can not produce any influence to iron runner steel casing and fixed sleeve, fixing device's conduit can also play the effect of inside thermocouple of protection and compensation wire in addition, can effectively prolong the life of integrated device.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a view showing the structure of a fixing device according to the present invention;
FIG. 3 is a view showing a structure of a thermocouple device according to the present invention.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, 2 and 3, a temperature sensor for blast furnace iron runner monitoring includes a fixing device 1 and a thermocouple device 2 installed in the fixing device 1; the thermocouple device 2 comprises a thermocouple 5 and a temperature probe 7 arranged at the front end of the thermocouple 5, a spring mechanism is arranged in the fixing device 1, the temperature probe 7 at the front end of the thermocouple 5 extends out of the fixing device 1 in a spring manner through the spring mechanism, and the temperature of the blast furnace iron runner is measured through the temperature probe 7 at the front end.
The fixing device 1 comprises a conduit 3, and a conduit seat 4 is correspondingly arranged at the lower end of the conduit 3; the wire holder 4 is provided mainly for smoothly extending the temperature probe 7.
And the thermocouple device 2 further comprises a fixing ferrule 6; the rear end of the thermocouple 5 is arranged in the fixed cutting sleeve 6 and correspondingly extends out of the fixed cutting sleeve 6, the temperature probe 7 extends out of the wire seat 4 of the wire conduit 3 under the action of the elastic pressing mechanism, and the upper end of the wire conduit 3 is correspondingly detachably mounted with the fixed cutting sleeve 6.
The elastic pressing mechanism comprises a stop block 8 arranged at the tail end of the temperature measuring probe 7 and a compression spring 9 arranged between the stop block 8 and the fixed cutting sleeve 6.
The thermocouple 5 is sleeved in the compression spring 9, the compression spring 9 is correspondingly sleeved in the wire conduit 3, the temperature measuring probe 7 extends out of the wire base 4 under the action of the compression spring 9, and the stop block 8 is correspondingly stopped by the wire base 4.
The device comprises a fixing device and a thermocouple device, wherein an elastic pressing mechanism is arranged in the fixing device, a fixing clamping sleeve and a wire guide pipe are detachably mounted, and a temperature measuring probe at the front end of the thermocouple extends out of a wire guide seat under the action of a compression spring in the elastic pressing mechanism.
When measuring temperature, will fix the cutting ferrule fixedly, the temperature probe of thermocouple stretches out and tightly presses on the temperature measurement copper, no matter the temperature measurement copper is inwards shrink or outwards expands, can both make the temperature probe and the temperature measurement copper in close contact with of thermocouple front end, effectual improvement temperature measurement precision.
The middle upper part of the conduit 3 is also provided with a fixed seat 10; fixed buckle 11 is still installed to the upper end of wire conduit 3, and wire conduit 3 and fixed cutting ferrule 6 are through the fixed buckle 11 demountable installation who sets up.
The thermocouple 5 is integrally in a structural form of an armored thermocouple 5 with an external lead, a temperature probe 7 at the front end of the thermocouple 5 is connected with and provided with a compensation lead, and the rear end of the thermocouple 5 is correspondingly connected with and provided with a single-stranded soft cable.
The thermocouple 5 and the compensation lead are installed by adopting an automatically-locked plug type structure, and the compensation lead is arranged in the compression spring 9.
In the device, the thermocouple is an N-type armored thermocouple which has strong temperature regulation and oxidation resistance below 1300 ℃, long-term stability and short-term thermal cycle reproducibility are good, the diameter of the thermocouple is set between 3mm and 6mm, the diameter of the measuring end is thickened to 8 mm to 12mm in order to ensure the strength of the head of the thermocouple in the stress measuring process, the length of the armored thermocouple is customized according to the actual distance from a measuring point to a normal temperature environment, the effective distance is more than or equal to 3m, and on one hand, the thermocouple in an environmental hot area can be ensured to be a high-temperature resistant part; on the other hand, the connection part of the thermocouple and the compensation lead can be ensured to be in a normal temperature environment, and the temperature measurement precision and stability are ensured.
More specifically, the overall length of the thermocouple 5 can be set to 5000mm, the length of the temperature probe 7 at the front end of the thermocouple 5 is 110mm, the outer diameter of the temperature probe 7 at the front end is specifically set to 6mm, the outer diameter of the rest part of the thermocouple 5 is specifically set to 3mm, and the outer armor of the thermocouple 5 is set to 3030 heat-resistant steel; the outer diameter of the stopper 8 is set to 15-25 mm.
The thermocouple 5 and the compensation wire are installed in an automatic locking plug type structure, the compensation wire is arranged in the compression spring 9, connection is firm, and influences of external factors such as vibration, dust, oil stain and water vapor are avoided.
The single-stranded soft cable is arranged to be N-shaped, the outer sleeve is a stainless steel mesh and a glass fiber insulating layer, and the heat resistance is higher than 480 ℃; and the single-stranded flexible cable is also connected with a bridge.
Fixing device and thermocouple device demountable installation in this device, inside thermocouple passes through the pressure spring top tightly, fixed cutting ferrule and conduit are through fixed buckle demountable installation, when the thermocouple trouble, push down the spring, unscrew fixed cutting ferrule, direct whole thermocouple of taking out is maintained, easy operation is convenient, and can not produce any influence to iron runner steel casing and fixed sleeve, fixing device's conduit can also play the effect of inside thermocouple of protection and compensation wire in addition, can effectively prolong the life of integrated device.
The detailed description is to be construed as exemplary only and is not intended to limit the invention from practice or the scope of the appended claims, which are intended to include all equivalent variations and modifications within the scope of the invention as claimed.
Claims (7)
1. A temperature sensor for blast furnace iron runner monitoring, which is characterized in that: comprises a fixing device (1) and a thermocouple device (2) arranged in the fixing device (1); the thermocouple device (2) comprises a thermocouple (5) and a temperature probe (7) installed at the front end of the thermocouple (5), wherein a spring pressing mechanism is arranged in the fixing device (1), the temperature probe (7) at the front end of the thermocouple (5) extends out of the fixing device (1) in a spring pressing mode through the spring pressing mechanism, and the temperature of a blast furnace iron runner is measured through the front end temperature probe (7).
2. The temperature sensor for blast furnace iron runner monitoring as claimed in claim 1, wherein: the fixing device (1) comprises a conduit (3), and the lower end of the conduit (3) is correspondingly provided with a conduit seat (4);
the thermocouple device (2) also comprises a fixed clamping sleeve (6); the rear end of the thermocouple (5) is arranged in the fixed cutting sleeve (6) and correspondingly extends out of the fixed cutting sleeve (6), the temperature measuring probe (7) extends out of the wire seat (4) of the wire conduit (3) under the action of the elastic pressing mechanism, and the upper end of the wire conduit (3) is correspondingly detachably mounted with the fixed cutting sleeve (6).
3. The temperature sensor for blast furnace iron runner monitoring as claimed in claim 2, wherein: the elastic pressing mechanism comprises a stop block (8) arranged at the tail end of the temperature measuring probe (7) and a compression spring (9) arranged between the stop block (8) and the fixed cutting sleeve (6);
the thermocouple (5) is sleeved in the compression spring (9), the compression spring (9) is correspondingly sleeved in the wire conduit (3), the temperature measuring probe (7) extends out of the wire base (4) under the action of the compression spring (9), and the stop block (8) is correspondingly blocked by the wire base (4).
4. The temperature sensor for blast furnace iron runner monitoring as claimed in claim 2, wherein: and a fixed seat (10) is also arranged at the middle upper part of the conduit (3).
5. The temperature sensor for blast furnace iron runner monitoring as claimed in claim 2, wherein: the upper end of the conduit (3) is also provided with a fixed buckle (11), and the conduit (3) and the fixed clamping sleeve (6) are detachably arranged through the arranged fixed buckle (11).
6. The temperature sensor for blast furnace iron runner monitoring as claimed in claim 1, wherein: the thermocouple (5) is integrally in a structural form of an armored thermocouple (5) with an external lead, a temperature measuring probe (7) at the front end of the thermocouple (5) is connected with and provided with a compensation lead, and the rear end of the thermocouple (5) is correspondingly connected with and provided with a single-stranded soft cable.
7. A temperature sensor for blast furnace iron runner monitoring according to claim 3, characterized in that: the thermocouple (5) and the compensation lead are installed in an automatic locking plug type structure, and the compensation lead is arranged in the compression spring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110823714.2A CN113607296A (en) | 2021-07-20 | 2021-07-20 | Temperature sensor for monitoring blast furnace iron runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110823714.2A CN113607296A (en) | 2021-07-20 | 2021-07-20 | Temperature sensor for monitoring blast furnace iron runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113607296A true CN113607296A (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110823714.2A Pending CN113607296A (en) | 2021-07-20 | 2021-07-20 | Temperature sensor for monitoring blast furnace iron runner |
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| Country | Link |
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| CN (1) | CN113607296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459631A (en) * | 2021-12-30 | 2022-05-10 | 江苏芯锐传感科技有限公司 | Thin-sheet type hot water tank temperature sensor with in-furnace high-pressure monitoring effect |
-
2021
- 2021-07-20 CN CN202110823714.2A patent/CN113607296A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459631A (en) * | 2021-12-30 | 2022-05-10 | 江苏芯锐传感科技有限公司 | Thin-sheet type hot water tank temperature sensor with in-furnace high-pressure monitoring effect |
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| CB03 | Change of inventor or designer information |
Inventor after: Tong Shengli Inventor after: Li Minghui Inventor after: Song Zhonghua Inventor after: Gao Qingqing Inventor after: Song Haiping Inventor before: Tong Shengli Inventor before: Li Minghui Inventor before: Song Zhonghua Inventor before: Gao Qingqing Inventor before: Song Haiping |
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