A continuous temperature measuring system for molten iron in a blast furnace

Abstract

This utility model discloses a continuous temperature measurement system for molten iron in a blast furnace, comprising a main body, a first protective component, a second protective component, and a temperature measuring component. The first and second protective components protect the temperature measuring component from high-temperature corrosion and ensure that the temperature measuring component can accurately perform temperature measurement operations, thereby improving the reliability and service life of the system. By placing the temperature measuring component in the channel of the first protective component and extending the detection end of the temperature measuring component to the second protective component, the second protective component directly contacts the molten iron below the surface of the molten iron. Compared with traditional manual and non-contact temperature measurement methods, this system can more accurately reflect the actual temperature of the molten iron, providing a more reliable basis for temperature control in the blast furnace production process. The temperature measurement process does not require direct manual contact with the high-temperature molten iron, reducing the working time and potential risks of operators in high-temperature environments, improving the safety of the blast furnace tapping process, and providing a safer working environment for operators.

Description

Technical Field

[0001] This application relates to the field of blast furnace steelmaking technology, and in particular to a continuous temperature measurement system for blast furnace molten iron. Background Technology

[0002] When tapping iron from a blast furnace, the temperature of the molten iron flowing inside the hook needs to be measured to monitor temperature changes and thus regulate the blast furnace smelting process. Current temperature measurement methods involve manually inserting a temperature gun with a probe into the molten iron. Because this is manual and the molten iron temperature is relatively high, each measurement consumes a probe, requiring multiple measurements per batch, resulting in high labor intensity for the operators. Alternatively, a non-contact continuous molten iron temperature measurement device can be used, employing an infrared thermometer to illuminate the molten iron surface. However, this method only allows for intermittent measurements and cannot achieve continuous measurement.

[0003] Non-contact continuous molten iron temperature measurement devices measure the temperature of molten iron by irradiating the surface of the molten iron with an infrared thermometer. However, due to the limitations of their measurement principle, the measurement accuracy and stability are relatively low, and the accuracy is significantly different from that of manual measurement. Utility Model Content

[0004] In view of the deficiencies in the prior art, this application provides a continuous temperature measurement system for blast furnace molten iron to solve the problems of low temperature measurement efficiency and inability to perform continuous measurement in the prior art.

[0005] The above-mentioned objectives of this application are mainly achieved through the following technical solutions:

[0006] A continuous temperature measurement system for molten iron in a blast furnace, the continuous temperature measurement system comprising:

[0007] A main body component for connecting to an iron hook cover, the main body component penetrating the iron hook cover and extending to the upper part of the molten iron surface, the main body component having a first accommodating space inside;

[0008] The first protective component is installed on the main body component, and the first protective component has a through first channel inside;

[0009] The second protective component has one end fixed to the main body and the other end extended to the lower part of the molten iron surface.

[0010] A temperature measuring element is disposed in the first channel of the first protective element, and one end of the temperature measuring element is provided with a detection end, which extends to the second protective element.

[0011] In an alternative embodiment, the main body is vertically and retractably connected to the iron hook cover.

[0012] In an optional embodiment, the main body includes a fixedly connected cylinder and a positioning ring, with a plurality of adjusting bolts threaded onto the positioning ring, the ends of which are used to press against the top surface of the iron hook cover.

[0013] In an optional embodiment, at least three adjusting bolts are provided and are distributed at circumferential intervals.

[0014] In an optional embodiment, the main body is provided with an air inlet for introducing cooling air and an exhaust outlet for discharging cooling air.

[0015] In an optional embodiment, the first protective member is provided with an air inlet for introducing cooling air, and the first channel is connected to the first accommodating space.

[0016] In an optional embodiment, a gap is provided between one end of the first protective member and the inner wall of the first accommodating space.

[0017] In an optional implementation, the detection end is a thermocouple.

[0018] In an optional embodiment, one end of the second protective member extends 200-300 mm below the surface of the molten iron.

[0019] In an alternative implementation, the melting point of the second protective element is therefore higher than the temperature of the molten iron.

[0020] Compared with the prior art, the advantages of this application are:

[0021] This application presents a continuous temperature measurement system for measuring the temperature of molten iron in a blast furnace. The continuous temperature measurement system includes a main body, a first protective component, a second protective component, and a temperature measuring component. The main body is connected to an iron hook cover, extends through the iron hook cover to the upper part of the molten iron surface, and has a first accommodating space inside. The first protective component is installed on the main body and has a through-channel inside. One end of the second protective component is fixed to the main body, and the other end extends to the lower part of the molten iron surface. The temperature measuring component is installed in the first channel of the first protective component, and one end of the temperature measuring component has a detection end that extends to the second protective component.

[0022] The main component is connected to the iron hook cover, penetrates the cover, and extends to the upper part of the molten iron surface, allowing the temperature measuring system to be stably installed on the blast furnace iron hook, adapting to the complex operating conditions during the blast furnace tapping process. The design of the first and second protective components not only protects the temperature measuring element from high-temperature corrosion but also ensures that the temperature measuring element can accurately perform temperature measurement operations, thereby improving the reliability and service life of the system.

[0023] By placing the temperature measuring element within the channel of the first protective element and extending its detection end to the second protective element, allowing the second protective element to directly contact the molten iron below the surface, this system overcomes the limitation of traditional infrared thermometers, which can only measure intermittently. It provides real-time, continuous temperature data for the blast furnace smelting process, enabling operators to more accurately monitor changes in molten iron temperature and optimize blast furnace smelting control. This avoids measurement errors caused by environmental factors (such as smoke and steam) in non-contact temperature measurement, significantly improving the accuracy and stability of temperature measurement. Compared to traditional manual and non-contact temperature measurement methods, this continuous temperature measurement system more accurately reflects the actual temperature of the molten iron, providing a more reliable basis for temperature control during blast furnace production.

[0024] Traditional manual temperature measurement requires operators to frequently insert temperature probes, which is not only labor-intensive but also consumes a probe for each measurement, increasing production costs. This continuous temperature measurement system eliminates the need for frequent manual operation, and the temperature measuring elements are reusable, avoiding excessive probe consumption. This reduces the labor intensity of operators and lowers production costs for the company. Since the temperature measurement process does not involve direct contact with molten iron, it reduces the operator's working time and potential risks in high-temperature environments, improving the safety of the blast furnace tapping process and providing a safer working environment for operators. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the installation of the continuous temperature measurement system provided in the embodiments of this application;

[0027] In the diagram: 100, main body; 101, cylinder; 102, positioning ring; 103, adjusting bolt; 104, first accommodating space; 200, first protective component; 300, second protective component; 400, temperature measuring component; 501, air inlet; 502, exhaust port; 601, iron hook cover; 602, molten iron surface. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the present invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are only for describing exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0029] like Figure 1 As shown, Figure 1 This is a schematic diagram of the installation of a continuous temperature measurement system provided in an embodiment of this application. A continuous temperature measurement system for molten iron in a blast furnace includes a main body 100, a first protective component 200, a second protective component 300, and a temperature measuring component 400, wherein:

[0030] like Figure 1 As shown, the main body 100 is used to connect to the iron hook cover 601. The main body 100 passes through the iron hook cover 601 and extends to the upper part of the molten iron surface 602. The interior of the main body 100 is provided with a first accommodating space 104.

[0031] like Figure 1 As shown, the main body 100 is the core supporting component of the entire continuous temperature measurement system. The main body 100 is connected to the iron hook cover 601, serving to fix and position it. The main body 100 can penetrate the iron hook cover 601 and extend to the upper part of the molten iron surface 602, thus providing a stable and suitable working position for the temperature measuring element 400. Inside the main body 100, there is a first accommodating space 104. The first accommodating space 104 provides the necessary space foundation for the installation and layout of other components, ensuring that each component can operate normally under the protection of the main body 100, and also ensuring the overall structural stability of the continuous temperature measurement system.

[0032] The first protective element 200 is inserted through the main body 100, and the first protective element 200 has a through first channel inside.

[0033] like Figure 1 As shown, the first protective element 200 is installed through the main body 100, playing a crucial protective role within the internal space of the main body 100. The first protective element 200 has a through-channel, providing a precise path for the installation and positioning of the temperature measuring element 400. Through the first channel, the temperature measuring element 400 can be securely placed in a suitable position. Simultaneously, the presence of the first protective element 200 effectively prevents interference and damage from the external environment to the temperature measuring element 400, providing a good protective environment for its normal operation and ensuring the accuracy and reliability of the temperature measurement data.

[0034] like Figure 1 As shown, one end of the second protective member 300 is fixed on the main body 100, and the other end is used to extend to the lower part of the molten iron surface 602.

[0035] The second protective component 300 is a key component connecting the main body 100 and the molten iron surface 602. One end of the second protective component 300 is fixedly mounted on the main body 100, and the other end extends to the lower part of the molten iron surface 602. This allows the second protective component 300 to establish a stable connection channel between the main body 100 and the molten iron surface 602, providing a temperature measurement path for the detection end of the temperature measuring element 400. Through the second protective component 300, the detection end of the temperature measuring element 400 can accurately detect the temperature of the molten iron through heat transfer. The second protective component 300 not only plays a connecting and guiding role but also protects the detection end of the temperature measuring element 400 to a certain extent, preventing excessive corrosion and damage to the temperature measuring element 400 in the high-temperature molten iron environment and extending the service life of the temperature measuring element 400.

[0036] like Figure 1 As shown, the temperature measuring element 400 is disposed in the first channel of the first protective element 200, and one end of the temperature measuring element 400 is provided with a detection end, which extends to the second protective element 300.

[0037] The primary function of the temperature measuring element 400 is temperature measurement. The temperature measuring element 400 is positioned within the first channel of the first protective element 200. Precise guidance and positioning through the first channel ensure that the temperature measuring element 400 is stably installed within the main body 100. One end of the temperature measuring element 400 has a detection end, which is the key part where the temperature measuring element 400 directly contacts the second protective element 300. The detection end extends through the second protective element 300 to the lower part of the molten iron surface 602, allowing the detection end of the temperature measuring element 400 to obtain the temperature of the molten iron, thus achieving real-time and continuous measurement of the molten iron temperature. The temperature measuring element 400, combined with the synergistic effect of the main body 100, the first protective element 200, and the second protective element 300, not only ensures the efficiency and accuracy of the temperature measurement process but also improves the overall stability and reliability of the continuous temperature measurement system, providing strong technical support for the precise control of molten iron temperature during blast furnace tapping.

[0038] like Figure 1As shown, in an optional embodiment, the continuous temperature measurement system of this application is used for temperature measurement of molten iron in a blast furnace. The operating principle of the continuous temperature measurement system is as follows: The continuous temperature measurement system includes a main body 100, a first protective component 200, a second protective component 300, and a temperature measuring component 400. The main body 100 is connected to the iron hook cover 601. The main body 100 passes through the iron hook cover 601 and extends to the upper part of the molten iron surface 602. The interior of the main body 100 is provided with a first accommodating space 104. The first protective component 200 passes through the main body 100. The interior of the first protective component 200 is provided with a through first channel. One end of the second protective component 300 is fixed to the main body 100, and the other end extends to the lower part of the molten iron surface 602. The temperature measuring component 400 is disposed in the first channel of the first protective component 200. One end of the temperature measuring component 400 is provided with a detection end, and the detection end extends to the second protective component 300.

[0039] The main component 100 is connected to the hook cover 601, passes through the hook cover 601, and extends to the upper part of the molten iron surface 602, allowing the temperature measuring system to be stably installed on the blast furnace hook and adapt to the complex working conditions during the blast furnace tapping process. The first protective component 200 and the second protective component 300 not only protect the temperature measuring element 400 from high-temperature corrosion but also ensure that the temperature measuring element 400 can accurately perform temperature measurement operations, thereby improving the reliability and service life of the system.

[0040] like Figure 1 As shown, by placing the temperature measuring element 400 within the channel of the first protective element 200 and extending the detection end of the temperature measuring element 400 to the second protective element 300, the second protective element 300 directly contacts the molten iron below the surface 602, thus overcoming the limitation of traditional infrared thermometers that can only measure intermittently. This provides real-time, continuous temperature data for the blast furnace smelting process, enabling operators to more accurately grasp the changes in molten iron temperature and optimize blast furnace smelting control. It avoids measurement errors caused by environmental factors (such as smoke, steam, etc.) in non-contact temperature measurement, significantly improving the accuracy and stability of temperature measurement. Compared with traditional manual and non-contact temperature measurement methods, this continuous temperature measurement system can more accurately reflect the actual temperature of the molten iron, providing a more reliable basis for temperature control in the blast furnace production process.

[0041] Traditional manual temperature measurement requires operators to frequently insert temperature probes, which is not only labor-intensive but also consumes a probe for each measurement, increasing production costs. This continuous temperature measurement system eliminates the need for frequent manual operation, and the 400mm temperature measuring element is reusable, avoiding excessive probe consumption. This reduces operator workload and lowers production costs. Since the temperature measurement process does not involve direct contact with molten iron, it reduces operator time and potential risks in high-temperature environments, improving the safety of the blast furnace tapping process and providing a safer working environment for operators.

[0042] like Figure 1 As shown, in an optional embodiment, the main body 100 is vertically and flexibly connected to the hook cover 601, allowing the main body 100 to flexibly adjust its position on the hook cover 601 according to actual working conditions to adapt to different molten iron levels 602. This ensures that the detection end of the temperature measuring element 400 can always accurately contact the second protective element 300, thereby improving the accuracy and reliability of temperature measurement. The vertical connection also makes installation and debugging of the main body 100 more convenient, enabling it to quickly adapt to different blast furnace tapping environments and enhancing the versatility and adaptability of the continuous temperature measurement system.

[0043] like Figure 1 As shown, in an optional embodiment, the main body 100 includes a cylindrical body 101 and a positioning ring 102 that are fixedly connected. A plurality of adjusting bolts 103 are threadedly connected to the positioning ring 102, and the ends of the adjusting bolts 103 are used to press against the top surface of the iron hook cover 601.

[0044] The cylinder 101 provides necessary support and protection for the temperature measurement system, while the positioning ring 102 is connected to the iron hook cover 601 via adjusting bolts 103, ensuring the stable installation of the main body 100 on the iron hook cover 601. Multiple adjusting bolts 103 not only provide sufficient fixing force but also allow for precise position adjustment of the main body 100 on the iron hook cover 601, thereby ensuring that the detection end of the temperature measuring element 400 can be accurately positioned at the preset location.

[0045] like Figure 1 As shown, in an optional embodiment, at least three adjusting bolts 103 are provided and are distributed at intervals along the circumference.

[0046] The circumferential spacing of the adjusting bolts 103 ensures a more even distribution of force on the main body 100 and the iron hook cover 601, preventing damage to the main body 100 or the iron hook cover 601 due to excessive local stress. Simultaneously, the multiple adjusting bolts 103 provide greater flexibility in adjustment, allowing for more precise and flexible positioning of the main body 100, further enhancing the stability and reliability of the continuous temperature measurement system.

[0047] like Figure 1 As shown, in an optional embodiment, the main body 100 is provided with an air inlet 501 for introducing cooling air and an exhaust port 502 for discharging cooling air.

[0048] Due to the high ambient temperature at the blast furnace tapping site, the main component 100 may be damaged by high temperatures during prolonged operation. By providing air inlet 501 and exhaust 502 on the main component 100, the introduction of cooling air can effectively reduce the temperature of the main component 100, preventing deformation or damage due to high temperatures and thus extending its service life. Simultaneously, the flow of cooling air can also remove heat from the surrounding area of ​​the main component 100, providing a relatively stable temperature environment for the temperature measuring element 400 and further improving the accuracy of temperature measurement.

[0049] like Figure 1 As shown, in an optional embodiment, the first protective member 200 is provided with an air inlet 501 for introducing cooling gas. The first channel is connected to the first accommodating space 104, so that the cooling gas can enter the first channel through the air inlet 501 of the first protective member 200 and further flow into the first accommodating space 104. Through the flow of cooling gas, the operating temperature of the temperature measuring element 400 in a high-temperature environment can be reduced, preventing the non-detection end of the temperature measuring element 400 from malfunctioning or causing measurement errors due to high temperature, and ensuring the stable operation of the continuous temperature measurement system.

[0050] like Figure 1 As shown, in an optional embodiment, a gap is provided between one end of the first protective member 200 and the inner wall of the first accommodating space 104. This gap provides a channel for the flow of cooling air, allowing the cooling air to flow smoothly between the first protective member 200 and the inner wall of the first accommodating space 104. At the same time, this gap also provides a certain space for the installation and removal of the temperature measuring element 400, facilitating the maintenance and replacement of the temperature measuring element 400.

[0051] In an optional implementation, the sensing end is a thermocouple. A thermocouple is a commonly used temperature-sensing element with advantages such as high measurement accuracy, fast response speed, and good stability. Using a thermocouple as the sensing end allows for accurate measurement of the molten iron temperature and rapid, accurate transmission of the temperature signal to the temperature measurement system for processing and display. The use of thermocouples further improves the accuracy and reliability of the continuous temperature measurement system, better meeting the stringent requirements for molten iron temperature measurement during blast furnace tapping.

[0052] like Figure 1 As shown, in an optional embodiment, one end of the second protective member 300 extends 200-300mm below the molten iron surface 602, allowing the second protective member 300 to penetrate to a suitable position below the molten iron surface 602. This ensures that the second protective member 300 can directly contact the molten iron, thereby achieving reliable temperature transfer. The 200-300mm extension length ensures that the second protective member 300 can fully contact the molten iron while avoiding damage to the temperature measuring element 400 or measurement errors due to excessive extension, thus ensuring the stable operation of the temperature measuring system.

[0053] In an optional implementation, the melting point of the second protective element 300 is higher than the temperature of the molten iron. Since the temperature of molten iron in a blast furnace is extremely high, typically around 1500°C, the second protective element 300 must possess sufficient high-temperature resistance to ensure its stability and reliability in high-temperature environments. By selecting a material with a melting point higher than the temperature of the molten iron to manufacture the second protective element 300, melting or deformation in the high-temperature molten iron can be effectively prevented, thereby extending the service life of the second protective element 300 and ensuring the normal operation of the temperature measurement system.

[0054] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of this utility model.

[0055] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0056] It should be understood that in the description of this utility model, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0057] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0059] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0060] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

[0061] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art.

Claims

1. A continuous temperature measurement system for molten iron in a blast furnace, characterized in that, The continuous temperature measurement system includes: A main body component for connecting to an iron hook cover, the main body component penetrating the iron hook cover and extending to the upper part of the molten iron surface, the main body component having a first accommodating space inside; The first protective component is installed on the main body component, and the first protective component has a through first channel inside; The second protective component has one end fixed to the main body and the other end extended to the lower part of the molten iron surface. A temperature measuring element is disposed in the first channel of the first protective element, and one end of the temperature measuring element is provided with a detection end, which extends to the second protective element.

2. The continuous temperature measurement system for blast furnace molten iron as described in claim 1, characterized in that: The main body is vertically and retractably connected to the iron hook cover.

3. The continuous temperature measurement system for blast furnace molten iron as described in claim 2, characterized in that: The main component includes a fixedly connected cylinder and a positioning ring. The positioning ring is threaded with multiple adjusting bolts, the ends of which are used to press against the top surface of the iron hook cover.

4. The continuous temperature measurement system for blast furnace molten iron as described in claim 3, characterized in that: At least three adjusting bolts are provided, and they are distributed at intervals along the circumference.

5. The continuous temperature measurement system for blast furnace molten iron as described in claim 1, characterized in that: The main body is provided with an air inlet for introducing cooling air and an exhaust outlet for discharging cooling air.

6. The continuous temperature measurement system for blast furnace molten iron as described in claim 5, characterized in that: The first protective component is provided with an air inlet for introducing cooling air, and the first channel is connected to the first accommodating space.

7. The continuous temperature measurement system for blast furnace molten iron as described in claim 6, characterized in that: A gap is provided between one end of the first protective member and the inner wall of the first accommodating space.

8. The continuous temperature measurement system for blast furnace molten iron as described in claim 1, characterized in that: The detection end is a thermocouple.

9. The continuous temperature measurement system for blast furnace molten iron as described in claim 1, characterized in that: One end of the second protective member extends 200-300mm below the surface of the molten iron.

10. The continuous temperature measurement system for blast furnace molten iron as described in claim 1, characterized in that: Therefore, the melting point of the second protective component is higher than the temperature of molten iron.

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