Converter temperature measuring mechanism

Abstract

The invention relates to converter temperature monitoring, in particular to a converter temperature measuring mechanism, which is characterized in that temperature monitoring units are distributed on the periphery of each air hole opening in a protective plate covering area on a converter body, are arranged on a converter shell on the outer side of the converter body and are used for detecting the temperature of the converter shell at the position where the temperature monitoring units are located; the output end of the temperature monitoring unit is in electric connection or communication connection with the temperature measuring terminal. The temperature monitoring units are arranged on the furnace shell on the periphery of each air hole opening in the area covered by the protective plate, and the temperature of the furnace shell is measured by the temperature monitoring units in the shielded air hole area, so that the problem that the temperature of the air hole opening in the area covered by the protective plate cannot be effectively measured in a traditional infrared camera temperature measurement mode is solved, and meanwhile, the temperature measurement is more accurate; and the overall temperature monitoring reliability of the furnace body is ensured.

Description

Technical Field

[0001] This invention relates to converter temperature monitoring, and more specifically to a converter temperature measuring mechanism. Background Technology

[0002] A horizontal converter has a furnace opening in the middle of the furnace body for feeding, flue gas exhaust, slag removal, and copper tapping. A row of tuyeres, commonly known as the tuyere zone, is arranged horizontally on one side of the furnace body to blow oxygen-enriched air into the furnace. As the main equipment for long-term blowing of high-temperature molten copper, the converter suffers severe lining wear after prolonged operation due to continuous mechanical force, thermal stress, and chemical corrosion, especially at the tuyere openings. If the furnace body burns through, it can cause a serious safety accident in a very short time. Therefore, strengthening temperature monitoring of the tuyere zone in the later stages of furnace use is particularly important. Current technology typically uses infrared imaging to monitor the furnace shell temperature in the tuyere zone.

[0003] However, in existing technology, the converter has an upward flue connected to the waste heat boiler, which is made of water jackets. Coke will fall from the water jackets. Considering that the coke will fall onto the bellows and tuyeres on the furnace body, a protective plate is usually installed in the middle area of ​​the furnace body to shield the bellows and tuyeres in the middle of the furnace body and prevent the falling coke from damaging them. However, because of the presence of the protective plate, the furnace shell at the tuyeres in the area covered by the protective plate is blocked and cannot be effectively observed by the camera. The temperature of the furnace shell at the tuyeres in the middle of the furnace body cannot be monitored, which makes it impossible to guarantee the reliability of the overall temperature monitoring of the furnace body. Summary of the Invention

[0004] This invention provides a converter temperature measuring mechanism that can effectively monitor the furnace shell temperature at the air vent location within the area shielded by the protective plate, ensuring the reliability of overall furnace temperature monitoring.

[0005] To achieve the above objectives, the technical solution adopted is as follows: a converter temperature measuring mechanism, wherein temperature monitoring units are distributed on the outer periphery of each air vent located in the area covered by the protective plate on the furnace body, the temperature monitoring units are set on the outer furnace shell of the furnace body and are used to detect the furnace shell temperature at the location of the temperature monitoring unit, and the output end of the temperature monitoring unit is electrically or communicatively connected to the temperature measuring terminal.

[0006] Compared with the prior art, the technical effect of the present invention is as follows: by arranging temperature monitoring units on the furnace shell around each air vent in the area covered by the protective plate, the temperature monitoring units are used to measure the furnace shell temperature in the blocked air vent area, which solves the problem that the traditional infrared camera temperature measurement method cannot effectively measure the temperature of the air vent in the area covered by the protective plate. At the same time, the temperature measurement is more accurate, ensuring the reliability of the overall temperature monitoring of the furnace body. Attached Figure Description

[0007] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0008] Figure 2 This is a schematic diagram of the lead box below the wind tunnel opening;

[0009] Figure 3 This is a front view of the present invention;

[0010] Figure 4 for Figure 3 Enlarged view of part M in the image. Detailed Implementation

[0011] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described in detail below, including related content:

[0012] A converter temperature measuring mechanism is provided, wherein temperature monitoring units 10 are distributed around each air vent A1 located in the area covered by the protective plate B on the furnace body A. The temperature monitoring units 10 are set on the outer furnace shell of the furnace body A and are used to detect the furnace shell temperature at the location of the temperature monitoring unit 10. The output terminal of the temperature monitoring unit 10 is electrically or communicatively connected to the temperature measuring terminal.

[0013] In the above technical solution, temperature monitoring units 10 are arranged on the furnace shell around each air vent A1 in the area covered by the protective plate B. The temperature monitoring units 10 are used to measure the furnace shell temperature in the blocked air vent area, which solves the problem that the traditional infrared camera temperature measurement method cannot effectively measure the temperature of the air vent A1 in the area covered by the protective plate B. At the same time, since the temperature monitoring units 10 are directly set on the furnace shell, the temperature measurement results are more accurate than the infrared camera temperature measurement method that is arranged in the air, thus ensuring the reliability of the overall temperature monitoring of the furnace body.

[0014] As a preferred embodiment, the temperature monitoring unit 10 is a thermocouple sensor. Four temperature monitoring units 10 are equidistantly arranged around each vent A1, and the temperature monitoring units 10 are equidistant from the two adjacent vents A1. In this embodiment, the four temperature monitoring units 10 equidistantly arranged around each vent A1 can effectively monitor the temperature of the furnace shell area in various directions around the vent A1. In addition, the temperature monitoring unit 10 can simultaneously measure the temperature of the furnace shell around the two adjacent vents A1. Moreover, because the temperature monitoring unit 10 is equidistant from the two adjacent vents A1, the temperature measurement results are avoided from failing to accurately reflect the furnace shell temperature at the same radius position of the two adjacent vents A1 due to different distances between the temperature monitoring unit 10 and the two adjacent vents A1.

[0015] It should be noted that the thermocouple sensor should be selected in a form that can be directly soldered onto the furnace shell, avoiding the use of patch thermocouples. This is because patch thermocouples tend to separate from the furnace shell after a period of use, affecting the accuracy of temperature measurement results.

[0016] Preferably, in order to reduce the number of temperature monitoring units 10 used and the amount of installation work, without affecting normal temperature measurement, adjacent vents A1 share two temperature monitoring units 10 on their adjacent sides, and the two shared temperature monitoring units 10 are located in the area between the two vents A1.

[0017] As a preferred option, temperature monitoring units 10 are also installed around the outer periphery of each air vent A1 outside the area covered by the protective plate B. This allows the temperature measurement of the entire air vent area of ​​the furnace body A to be uniformly performed using temperature monitoring units 10, instead of using temperature monitoring units 10 in combination with infrared camera technology to measure the temperature of air vent A1 at different locations. This makes the temperature measurement structure more uniform and facilitates processing by related equipment. On the other hand, it improves the accuracy of temperature measurement of each air vent A1 in the entire furnace body A, and the temperature measurement results of air vent A1 in different areas are relatively referential to each other.

[0018] In addition, combined Figure 2 and Figure 3 As shown, a lead box 20 is installed on the outer shell of furnace body A along the length of the furnace. The lead box 20 is located on the outer periphery of the vent A1 and extends along the length of the furnace body A to both ends. The electrical connection wires connected to the temperature monitoring units 10 pass through the through holes on the side of the lead box 20 and exit from the open end of the lead box 20. In this scheme, considering that the temperature monitoring units 10 are arranged in multiple rows along the length of furnace body A, in order to facilitate the reasonable guidance of the electrical connection wires of the temperature monitoring units 10 to the relevant equipment for connection, a lead box 20 is installed on the outer shell of furnace body A along the length of the furnace. The electrical connection wires of the temperature monitoring units 10 pass through the through holes on the side of the lead box 20 and exit from the open end of the lead box 20, thereby centrally constraining and guiding the electrical connection wires of each temperature monitoring unit 10 on furnace body A.

[0019] Here, the electrical connection wires of the junction box 20 and the temperature monitoring unit 10 can be made of heat-resistant and flame-retardant materials to ensure normal use in high-temperature environments. The junction box 20 can be made of steel to ensure the structural strength of the box.

[0020] As a preferred embodiment, two lead boxes 20 are provided on the upper and lower sides of the air vent A1. The electrical connection wires of the temperature monitoring units 10 located above and below the air vent A1 are respectively passed through the upper and lower lead boxes 20. In this embodiment, two lead boxes 20 are provided at the top and bottom to constrain and guide the electrical connection wires of the upper and lower temperature monitoring units 10, respectively. This avoids the situation where the upper or lower temperature monitoring units 10 are too far away from the lead boxes 20, which would require a long electrical connection wire to pass through the area between two adjacent air vents A1, making it inconvenient to arrange on the furnace body A.

[0021] Furthermore, a lead pipe 30 connected to the furnace body A is provided at the outer end of the furnace body A near the lead-out end of the electrical connection cable of the temperature monitoring unit 10. The rotary gear and rotary support ring A2 on the furnace body A are provided with through holes for the lead pipe 30 or the electrical connection cable to pass through. The lead pipe 30 includes a first pipe section 31, which extends from the lead-out end of the electrical connection cable along the length of the furnace towards the end of the furnace body A. The end of the first pipe section 31 is connected to a second pipe section 32, which extends along the radial direction of the furnace body A towards the rotary shaft at the end of the furnace body A. The electrical connection cable of the temperature monitoring unit 10 passes through the lead pipe 30.

[0022] In this design, the electrical connection harness extending from the open end of the lead box 20 is centrally guided by the lead tube 30. Guided by the first tube section 31 and the second tube section 32, the electrical connection harness is guided to the rotation axis at the end of the furnace body A, and then led out from the lead tube 30. This design ensures that during the rotation of the furnace body A, the electrical connection cable remains fixed relative to the furnace body A, with only the cable near the rotation axis at the end of the furnace body A experiencing a small-angle twist. This effectively reduces the overall torsional deformation of the electrical connection cable and prevents the electrical connection cable of the temperature monitoring unit 10 from being pulled or broken due to the rotation of the furnace body A.

Claims

1. A converter temperature measuring mechanism, characterized in that: Temperature monitoring units (10) are distributed around each air vent (A1) on the furnace body (A) in the area covered by the protective plate (B). The temperature monitoring units (10) are set on the outer furnace shell of the furnace body (A) and are used to detect the furnace shell temperature at the location of the temperature monitoring unit (10). The output end of the temperature monitoring unit (10) is electrically or communicatively connected to the temperature measurement terminal.

2. The converter temperature measuring mechanism according to claim 1, characterized in that: The temperature monitoring unit (10) is a thermocouple sensor. Four temperature monitoring units (10) are arranged equidistantly around each wind eye opening (A1). The temperature monitoring unit (10) is arranged equidistantly from the two nearby wind eye openings (A1).

3. The converter temperature measuring mechanism according to claim 2, characterized in that: The adjacent sides of the wind eye openings (A1) share two temperature monitoring units (10) and the two shared temperature monitoring units (10) are located in the area between the two wind eye openings (A1).

4. The converter temperature measuring mechanism according to claim 3, characterized in that: Temperature monitoring units (10) are installed on the outer periphery of each air vent (A1) located outside the area covered by the protective plate (B).

5. The converter temperature measuring mechanism according to claim 1 or 4, characterized in that: A lead box (20) is provided on the outer furnace shell of the furnace body (A) along the length of the furnace. The lead box (20) is located on the outer periphery of the air vent (A1) and extends along the length of the furnace to both ends of the furnace body (A). The electrical connection wire connected to the temperature monitoring unit (10) passes through the through hole on the side of the lead box (20) and enters the lead box (20) and is led out from the end opening of the lead box (20).

6. The converter temperature measuring mechanism according to claim 5, characterized in that: Two lead boxes (20) are provided on the upper and lower sides of the air vent (A1). The electrical connection wires of the temperature monitoring units (10) located above and below the air vent (A1) are respectively inserted into the upper and lower lead boxes (20).

7. The converter temperature measuring mechanism according to claim 5, characterized in that: A lead pipe (30) connected to the furnace body (A) is provided at the outer end of the furnace body (A) near the lead-out end of the electrical connection cable of the temperature monitoring unit (10). The rotary gear and rotary support ring (A2) on the furnace body (A) are provided with through holes for the lead pipe (30) or electrical connection cable to pass through. The lead pipe (30) includes a first pipe section (31). The first pipe section (31) extends from the lead-out end of the electrical connection cable along the length of the furnace to the end of the furnace body (A). The end of the first pipe section (31) is connected to a second pipe section (32). The second pipe section (32) extends along the radial direction of the furnace body (A) to the rotary shaft core at the end of the furnace body (A). The electrical connection cable of the temperature monitoring unit (10) passes through the lead pipe (30).

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