Tundish temperature measuring device

Abstract

The utility model belongs to the technical field of hot metal temperature measurement, disclose a kind of hot metal channel temperature measuring device, the heat conduction extension pipe in hot metal channel temperature measuring device is detachably arranged in the upper portion of temperature measuring tube and the upper portion is locked in detector by first connecting piece, the temperature at temperature measuring tube can be effectively conducted to detector with the help of heat conduction extension pipe, setting heat conduction extension assembly satisfies the temperature measurement operation of hot metal channel under different scenes, and the scene versatility of hot metal channel temperature measuring device is stronger. The upper end of heat conduction extension pipe along the length direction of itself is connected with detector by first connecting piece, and the lower end is detachably arranged above temperature measuring tube, and the overall dismounting difficulty of heat conduction extension assembly is small, and the operation convenience is strong. The measurement of hot metal temperature in hot metal channel can be realized by relying on detector and data processing unit, the intelligent degree of temperature measurement process is improved, compared with manual reading value, the temperature measurement accuracy and temperature measurement reliability are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of molten iron temperature measurement technology, and in particular to a molten iron trough temperature measurement device. Background Technology

[0002] The molten iron trough is a crucial facility for separating liquid slag and iron in front of the blast furnace, and its internal molten iron temperature directly reflects the thermal state inside the blast furnace. Excessively high molten iron temperature indicates excess heat within the blast furnace, which can lead to an increased coke ratio and higher smelting costs; conversely, excessively low molten iron temperature indicates insufficient heat, which can result in poor molten iron fluidity. Existing molten iron temperature measuring devices typically consist of a temperature measuring tube and a detector. The temperature measuring tube is inserted into the molten iron, and the detector located at the tube's outlet receives the radiant energy emitted from the bottom of the tube. After signal processing, the molten iron temperature is determined.

[0003] In response to environmental protection requirements, some existing molten iron troughs have been equipped with dust hoods to collect dust and harmful gases generated during the smelting process, reducing the impact on the surrounding environment. To prevent the high-temperature environment inside the dust hood from severely affecting the operation of the detectors, at least some detectors need to be installed outside the dust hood. However, due to the size of the temperature measuring tube, the detectors in the existing temperature measuring devices cannot be effectively connected to the temperature measuring tube after the dust hood is installed. Furthermore, due to obstacles in the surrounding environment or limitations in installation space in some molten iron troughs, it is not convenient to install temperature measuring devices of fixed size and carry out temperature measurement operations, resulting in poor versatility of the temperature measuring devices.

[0004] Therefore, there is an urgent need to develop a temperature measuring device for molten iron troughs to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a molten iron trough temperature measuring device. A heat-conducting extension component is added between the temperature measuring tube and the detector, which realizes an effective connection between the temperature measuring tube and the detector. This allows the detector to effectively obtain the temperature data of the temperature measuring tube when the temperature measuring environment and conditions are limited, thereby knowing the temperature of the molten iron in the molten iron trough. This enhances the versatility of the molten iron trough temperature measuring device and improves the accuracy and reliability of the molten iron temperature data.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model proposes a temperature measuring device for molten iron troughs, comprising:

[0008] The mounting bracket has mounting holes extending through it along its own height.

[0009] A temperature detection structure includes a temperature measuring tube, a thermally conductive extension assembly, a detector, and a data processing unit. At least a portion of the temperature measuring tube can be inserted into a molten iron trough through a mounting hole. The thermally conductive extension assembly includes a thermally conductive extension tube and a first connector. The thermally conductive extension tube is detachably disposed on the upper part of the temperature measuring tube. Both the thermally conductive extension tube and the detector are threadedly connected to the first connector so that the first connector can lock the thermally conductive extension tube and the detector. The detector is used to detect the temperature of the temperature measuring tube. The data processing unit is electrically connected to the detector and is configured to process and output the temperature data of the temperature measuring tube.

[0010] Optionally, the thermal extension assembly further includes a second connector, which is threaded to the thermal extension tube. The thermal extension tube is provided with a stop protrusion, and the lower end of the second connector abuts against the bottom surface of the stop protrusion and the upper end abuts against the first connector.

[0011] Optionally, the end of the heat-conducting extension tube near the detector is inserted into the detector, and the part of the heat-conducting extension tube not inserted into the detector and the detector are both threadedly connected to the first connector.

[0012] Optionally, the thermal extension assembly also includes a fastener, the first connector having a connection hole, the detector having a locking hole communicating with the connection hole, and the fastener passing through the connection hole and into the locking hole to lock the first connector and the detector.

[0013] Specifically, the thermal extension assembly includes at least two thermal extension tubes, and two adjacent thermal extension tubes can be detachably connected. The end of the thermal extension tube near the temperature measuring tube is inserted into the temperature measuring tube, and the end near the detector is locked to the detector through the first connector.

[0014] More specifically, two adjacent heat-conducting extension tubes are connected by plugging or threading.

[0015] Optionally, a limiting part is provided on the outer periphery of the temperature measuring tube, the limiting part abuts against the top surface of the mounting bracket, and the heat-conducting extension tube is inserted into the limiting part.

[0016] For example, the temperature measuring tube includes a constriction section and a main body section arranged sequentially from bottom to top and fixedly connected, and the diameter of the constriction section gradually decreases along the direction away from the main body section.

[0017] The beneficial effects of this utility model are:

[0018] This invention proposes a temperature measuring device for molten iron troughs. A heat-conducting extension tube is detachably mounted on the upper part of the temperature measuring tube, and the upper part is locked to the detector via a first connector. The temperature at the temperature measuring tube can be effectively conducted to the detector via the heat-conducting extension tube. The heat-conducting extension assembly extends the temperature transfer path between the temperature measuring tube and the detector, thereby achieving an effective connection between the temperature measuring tube and the detector when the installation and measurement space is limited, enhancing the versatility of the device. The upper end of the heat-conducting extension tube along its own length is threadedly connected to the detector via the first connector, and the lower end is detachably mounted on top of the temperature measuring tube. The overall assembly and disassembly of the heat-conducting extension assembly is easy to install and disassemble, and highly convenient to operate. The measurement of the molten iron temperature in the trough can be achieved using only the detector and the data processing unit, improving the intelligence of the temperature measurement process and significantly improving the accuracy and reliability of temperature measurement compared to manual reading. The mounting bracket has mounting holes extending along its own height, allowing the temperature measuring tube to pass through the mounting holes into the molten iron trough. The mounting bracket provides a clear installation position for the temperature measuring tube, reducing the difficulty of installation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a temperature measuring device in the prior art;

[0020] Figure 2 This is a schematic diagram of the structure of the molten iron trough temperature measuring device described in this embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the thermally conductive extension component described in an embodiment of this utility model;

[0022] Figure 4 This is an exploded view of the thermally conductive extension component described in an embodiment of this utility model.

[0023] In the picture:

[0024] 1. Mounting bracket; 2. Temperature detection structure; 21. Temperature measuring tube; 211. Limiting part; 212. Contraction part; 213. Main body; 22. Thermal extension assembly; 221. Thermal extension tube; 2211. Stop protrusion; 222. First connector; 2221. Connecting hole; 223. Second connector; 23. Detector; 3. Iron trough; 4. Dust cover. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] The molten iron trough is a key facility for separating liquid slag and iron in front of the blast furnace, and the temperature of the molten iron inside it directly reflects the thermal state inside the blast furnace. For example... Figure 1 As shown, existing molten iron temperature measuring devices typically consist of a temperature measuring tube 21 and a detector 23. The temperature measuring tube 21 is inserted into the molten iron trough 3, and the detector 23, located at the outlet of the temperature measuring tube 21, can receive the radiation energy emitted from the bottom of the temperature measuring tube 21. After processing the signal, the temperature of the molten iron can be determined. However, as... Figure 2 As shown, some existing molten iron troughs 3 are equipped with dust covers 4. The detector 23 in the aforementioned temperature measuring device cannot be effectively connected to the temperature measuring tube 21 of its fixed size, making the existing temperature measuring device unsuitable for temperature measurement operations in molten iron troughs 3 equipped with dust covers 4. Furthermore, for molten iron troughs 3 with equipment interference or environmental obstacles above, it is not convenient to install temperature measuring devices of fixed sizes; therefore, the existing temperature measuring devices have poor versatility.

[0030] like Figures 2-4As shown, this embodiment provides a molten iron trough temperature measuring device, including a mounting bracket 1 and a temperature detection structure 2. The mounting bracket 1 has a mounting hole extending through it along its height direction. The temperature detection structure 2 includes a temperature measuring tube 21, a thermally conductive extension component 22, a detector 23, and a data processing unit. At least a portion of the temperature measuring tube 21 can be inserted into the molten iron trough 3 through the mounting hole. The thermally conductive extension component 22 includes a thermally conductive extension tube 221 and a first connector 222. The thermally conductive extension tube 221 is detachably disposed on the upper part of the temperature measuring tube 21. Both the thermally conductive extension tube 221 and the detector 23 are threadedly connected to the first connector 222, so that the first connector 222 can lock the thermally conductive extension tube 221 and the detector 23. The detector 23 is used to detect the temperature of the temperature measuring tube 21. The data processing unit is electrically connected to the detector 23 and is configured to process and output the temperature data of the temperature measuring tube 21. It should be noted that the temperature measuring tube 21 can be inserted into the molten iron trough 3, therefore the temperature data of the temperature measuring tube 21 is equivalent to the temperature data of the molten iron in the molten iron trough 3 that it is in contact with. In this embodiment, the temperature data processing module includes a signal processor and a display screen. Both the detector 23 and the display screen are electrically connected to the signal processor, allowing the operator to directly observe the temperature of the molten iron in the molten iron trough 3 from the display screen. The specific structures of the detector 23, the signal processor, and the display screen, as well as the principle of their coordinated operation to obtain the temperature data of the temperature measuring tube 21, are existing technologies and will not be elaborated upon here.

[0031] In this embodiment, as Figure 2 and Figure 3 As shown, the heat-conducting extension tube 221 is detachably mounted on the upper part of the temperature measuring tube 21, and the upper part is locked to the detector 23 through the first connector 222. This allows the temperature at the temperature measuring tube 21 to be effectively conducted to the detector 23 via the heat-conducting extension tube 221. The heat-conducting extension assembly 22 enables effective connection between the temperature measuring tube 21 and the detector 23 when the molten iron trough 3 is equipped with a dust cover 4 or the surrounding temperature measuring space is limited. The molten iron trough temperature measuring device proposed in this embodiment can ensure the smooth completion of temperature measuring operations in different scenarios, enhancing the versatility of the molten iron trough temperature measuring device. The upper end of the heat-conducting extension tube 221 along its own length direction is threadedly connected to the detector 23 through the first connector 222, and the lower end is detachably mounted on top of the temperature measuring tube 21. The overall assembly and disassembly of the heat-conducting extension assembly 22 is simple and easy to operate. The temperature of the molten iron in the molten iron trough 3 can be measured using the detector 23 and the data processing unit, which improves the intelligence of the temperature measurement process and significantly enhances the accuracy and safety of temperature measurement compared to manual reading. The mounting bracket 1 has mounting holes extending along its own height, through which the temperature measuring tube 21 can be inserted into the molten iron trough 3. The mounting bracket 1 provides a clear installation position for the temperature measuring tube 21, reducing the difficulty of installation.

[0032] For example, the mounting bracket 1 is disposed inside the dust removal hood 4, the temperature measuring tube 21 and the heat conduction extension component 22 are both disposed inside the dust removal hood 4, the data processing unit is disposed outside the dust removal hood 4, and the detector 23 extends at least partially outside the dust removal hood 4, which greatly reduces the impact of the high temperature environment inside the dust removal hood 4 on the temperature detection, processing and output process, and improves the accuracy and reliability of the molten iron temperature acquisition data.

[0033] Specifically, a heat insulation layer is provided on the outer periphery of the heat-conducting extension tube 221 to reduce the heat loss of the heat-conducting extension tube 221 during the conduction process and improve the accuracy of the temperature data detected by the detector 23.

[0034] Optionally, the heat-conducting extension assembly 22 further includes a second connector 223, which is threadedly connected to the heat-conducting extension tube 221. The heat-conducting extension tube 221 has a stop protrusion 2211. The lower end of the second connector 223 abuts against the bottom surface of the stop protrusion 2211, and the upper end abuts against the first connector 222. The supporting effect of the second connector 223 on the stop protrusion 2211, combined with the first connector 222, further enhances the connection strength between the heat-conducting extension tube 221 and the detector 23. Furthermore, the upper end of the second connector 223 also abuts against the first connector 222. The second connector 223 and the first connector 222 achieve a double locking effect, limiting their relative rotation amplitude, thereby ensuring the connection reliability between the heat-conducting extension tube 221 and the detector 23, and thus improving the stability of the detection of molten iron temperature. It is understood that the installation direction of the second connector 223 is from bottom to top.

[0035] The heat-conducting extension tube 221 and the detector 23 are locked together by a first connector 222. Both tubes can have the same cross-sectional diameter, and their outer walls at the ends closest to each other are threaded. The first connector 222 can be first fitted onto one of the heat-conducting extension tube 221 and the detector 23 and threadedly locked, and then locked onto the other, thus achieving a locking effect between the heat-conducting extension tube 221 and the detector 23. This locking process is simple and reduces manufacturing costs. The diameter of the heat-conducting extension tube 221 can also be smaller than the cross-sectional diameter of the detector 23. The end of the heat-conducting extension tube 221 closest to the detector 23 passes through the detector 23. The portion of the heat-conducting extension tube 221 not penetrating the detector 23 and the detector 23 are threaded together by the first connector 222. The smaller diameter of the heat-conducting extension tube 221 compared to the detector 23 improves the vibration resistance at the connection point and reduces the risk of stress concentration.

[0036] Optionally, the thermally conductive extension assembly 22 may also include fasteners, such as Figure 4As shown, the first connector 222 has a connecting hole 2221, and the detector 23 has a locking hole communicating with the connecting hole 2221. A fastener passes through the connecting hole 2221 and is inserted into the locking hole to lock the first connector 222 and the detector 23. The fastener prevents the first connector 222 from shifting position due to vibration during temperature measurement, ensuring the positional accuracy of the first connector 222 during temperature measurement and enhancing the connection stability between the first connector 222 and the detector 23. The fastener can be a bolt or a pin, etc.

[0037] Specifically, the thermal extension assembly 22 includes at least two thermal extension tubes 221, and adjacent thermal extension tubes 221 are detachably connected. The end of the thermal extension tube 221 near the temperature measuring tube 21 is inserted into the temperature measuring tube 21, and the end near the detector 23 is locked to the detector 23 through the first connector 222. The thermal extension assembly 22 includes at least two mutually detachably connected thermal extension tubes 221. The operator can flexibly set the corresponding number of thermal extension tubes 221 according to the installation position of the detector 23 and the temperature measuring tube 21 in the actual temperature measurement operation, further satisfying the applicability of the iron trough temperature measuring device to the iron trough 3 temperature measurement operation in different scenarios.

[0038] More specifically, two adjacent heat-conducting extension tubes 221 are plugged together. On the side of each adjacent heat-conducting extension tube 221, one has a connecting protrusion, and the other has a plug-in groove that mates with the connecting protrusion. This connection between adjacent heat-conducting extension tubes 221 is easy to make and highly efficient to assemble and disassemble. Alternatively, the two adjacent heat-conducting extension tubes 221 can be connected by threads, resulting in a more stable connection after assembly.

[0039] In this embodiment, a limiting part 211 is provided on the outer periphery of the temperature measuring tube 21. The limiting part 211 abuts against the top surface of the mounting bracket 1, and the heat-conducting extension tube 221 is inserted into the limiting part 211. The limiting part 211 ensures that the depth to which the temperature measuring tube 21 extends into the molten iron trough 3 remains consistent at different locations within the same trough 3, guaranteeing consistent initial temperature measurement conditions and improving the reliability of the measurement results. The insertion and engagement of the heat-conducting extension tube 221 with the limiting part 211 also significantly reduces the installation difficulty of the heat-conducting extension assembly 22. In other embodiments, the heat-conducting extension tube 221 and the limiting part 211 may also be connected by threads, which will not be discussed further here.

[0040] For example, the temperature measuring tube 21 includes a contraction section 212 and a main body section 213 arranged sequentially from bottom to top and fixedly connected. Along the direction away from the main body section 213, the diameter of the contraction section 212 gradually decreases. The contraction section 212 reduces the resistance when the temperature measuring tube 21 initially enters the mounting hole. The cross-sectional area of ​​the main body section 213 is larger than that of the contraction section 212, which can provide a stable support effect for the heat-conducting extension tube 221.

[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A temperature measuring device for molten iron troughs, characterized in that, include: The mounting bracket (1) has a mounting hole extending through it along its own height direction; The temperature detection structure (2) includes a temperature measuring tube (21), a thermal extension assembly (22), a detector (23), and a data processing unit. At least part of the temperature measuring tube (21) can be inserted into the molten iron trough (3) through the mounting hole. The thermal extension assembly (22) includes a thermal extension tube (221) and a first connector (222). The thermal extension tube (221) is detachably disposed on the upper part of the temperature measuring tube (21). The thermal extension tube (221) and the detector (23) are both threadedly connected to the first connector (222) so that the first connector (222) can lock the thermal extension tube (221) and the detector (23). The detector (23) is used to detect the temperature of the temperature measuring tube (21). The data processing unit is electrically connected to the detector (23). The data processing unit is configured to process and output the temperature data of the temperature measuring tube (21).

2. The iron trough temperature measuring device according to claim 1, characterized in that, The thermal extension assembly (22) further includes a second connector (223), which is threaded to the thermal extension tube (221). The thermal extension tube (221) is provided with a stop protrusion (2211). The lower end of the second connector (223) abuts against the bottom surface of the stop protrusion (2211) and the upper end abuts against the first connector (222).

3. The iron trough temperature measuring device according to claim 1, characterized in that, The end of the heat-conducting extension tube (221) near the detector (23) is inserted into the detector (23), and the part of the heat-conducting extension tube (221) that does not penetrate the detector (23) and the detector (23) are both threadedly connected to the first connector (222).

4. The iron trough temperature measuring device according to claim 1, characterized in that, The thermally conductive extension assembly (22) further includes a fastener. The first connector (222) has a connection hole (2221), and the detector (23) has a locking hole that communicates with the connection hole (2221). The fastener passes through the connection hole (2221) and is inserted into the locking hole to lock the first connector (222) and the detector (23).

5. The iron trough temperature measuring device according to claim 1, characterized in that, The thermal extension assembly (22) includes at least two thermal extension tubes (221), and two adjacent thermal extension tubes (221) can be detachably connected. One end of the thermal extension tube (221) near the temperature measuring tube (21) is inserted into the temperature measuring tube (21), and the other end near the detector (23) is locked to the detector (23) through the first connector (222).

6. The iron trough temperature measuring device according to claim 5, characterized in that, The two adjacent heat-conducting extension tubes (221) are connected by plugging or threading.

7. The iron trough temperature measuring device according to any one of claims 1-6, characterized in that, The temperature measuring tube (21) is provided with a limiting part (211) on its outer periphery. The limiting part (211) abuts against the top surface of the mounting bracket (1), and the heat-conducting extension tube (221) is inserted into the limiting part (211).

8. The iron trough temperature measuring device according to any one of claims 1-6, characterized in that, The temperature measuring tube (21) includes a constriction section (212) and a main body section (213) arranged sequentially from bottom to top and fixedly connected. Along the direction of the constriction section (212) away from the main body section (213), the diameter of the constriction section (212) gradually decreases.

Images