System for monitoring melt temperature of intermediate frequency furnace in real time

Abstract

The utility model relates to the technical field of metal smelting and processing equipment, in particular to a system for monitoring the temperature of melt in an intermediate frequency furnace in real time. The monitoring system comprises a crucible body and further comprises a thermocouple, a mounting groove is formed in the inner wall of the crucible body, and the measuring end of the thermocouple and the part adjacent to the measuring end are embedded in the mounting groove. According to the scheme, when the crucible is used, the thermocouple arranged on the inner side of the crucible body can monitor the temperature change of melt in the crucible body in real time, manual measurement is not needed, operation is easy, and use is more convenient. Moreover, the measuring end of the thermocouple is embedded in the mounting groove in the inner wall of the crucible body, so that the measuring end of the thermocouple is not easily impacted when materials are fed into the crucible body, and the risk that the measuring end of the thermocouple is damaged is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of metal smelting and processing equipment, specifically to a system for real-time monitoring of the temperature of molten metal in a medium-frequency furnace. Background Technology

[0002] An intermediate frequency furnace is an industrial device that uses intermediate frequency power for induction heating, melting, and heat preservation. It is mainly used for melting various metals.

[0003] In existing technologies, the temperature of molten metal in an induction furnace is mainly detected using a telescopic rod and a disposable thermocouple. During operation, when the estimated temperature is reached, the sampling valve is opened, the fastening nut is loosened, and the detection rod containing the disposable thermocouple is manually lowered into the molten metal to achieve temperature detection.

[0004] While the above method can detect whether the temperature has reached the estimated temperature, it also has some problems. First, it cannot reflect the temperature of the melt in real time. Second, if the temperature detection is too far from the target value, the thermocouple needs to be replaced for a second test, which is cumbersome. Utility Model Content

[0005] To address the aforementioned deficiencies, the technical problem to be solved by this invention is to provide a system for real-time monitoring of the temperature of molten metal in a medium-frequency furnace, which can monitor the temperature of the molten metal in real time.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A system for real-time monitoring of molten metal temperature in a medium-frequency furnace includes a crucible body and a thermocouple. The inner wall of the crucible body has an installation groove, and the measuring end of the thermocouple and the portion adjacent to the measuring end are embedded in the installation groove.

[0008] By adopting the above scheme, the temperature change of the molten metal inside the crucible can be monitored in real time using a thermocouple installed inside the crucible body, eliminating the need for manual measurement, simplifying operation, and making it more convenient to use. Furthermore, since the measuring end of the thermocouple and the portion adjacent to it are embedded in a mounting groove on the inner wall of the crucible body, the measuring end of the thermocouple is less likely to be impacted when material is added to the crucible body, reducing the risk of damage to the measuring end.

[0009] The present invention is further configured such that the mounting groove is vertically oriented. Because the mounting groove is vertically oriented, it facilitates the insertion depth of the thermocouple's measuring end into the molten metal within the crucible body, ensuring the accuracy of molten metal temperature monitoring.

[0010] This invention is further configured such that there are gaps between the measuring end of the thermocouple and the side and bottom walls of the mounting groove. The molten metal melted inside the crucible can contact the periphery of the measuring end through the gaps between the measuring end mounting grooves, thereby ensuring the accuracy of temperature monitoring.

[0011] The present invention is further configured such that the gap between the measuring end of the thermocouple and the side wall located at the lower part of the mounting groove is 10mm. Because the gap between the measuring end and the side wall at the lower part of the mounting groove is relatively large, the measuring end used for temperature measurement can have more sufficient contact with the molten liquid, further ensuring the accuracy of thermocouple temperature measurement.

[0012] The present invention is further configured such that a mounting hole communicating with the top of the mounting groove is provided on the side wall of the crucible body, and the end of the thermocouple away from the measuring end is located on the outer side of the side wall of the crucible body, with a portion of the thermocouple passing through the mounting hole. Since the end of the thermocouple away from the measuring end is located on the outer side of the side wall of the crucible body, the thermocouple can be fixed through the mounting hole; furthermore, since a portion of the thermocouple passes through the mounting hole, the end of the thermocouple used for wiring does not need to be routed from the top of the crucible body to the outer side, thus preventing the metal material from impacting the thermocouple when feeding material into the crucible body.

[0013] The present invention is further configured such that a furnace platform is provided on the outside of the crucible body, and one end of the thermocouple located outside the crucible body is fixed on the furnace platform. The furnace platform facilitates the support and fixation of the end of the thermocouple located outside the crucible body.

[0014] The present invention is further configured such that a bracket is detachably connected to the furnace platform, and one end of the thermocouple located outside the crucible body is fixed to the bracket. The thermocouple can be easily fixed by the bracket.

[0015] The present invention is further configured such that the bracket is connected to the furnace platform by bolts. The bolt connection facilitates the installation and disassembly of the bracket and the furnace platform.

[0016] The present invention is further configured such that the thermocouple is an armored thermocouple. Armored thermocouples are characterized by being flexible, resistant to high pressure, having a short thermal response time, and being robust and durable.

[0017] The present invention is further characterized in that the thermocouple is an armored tungsten-rhenium thermocouple. Armored tungsten-rhenium thermocouples are more suitable for temperature monitoring in long-term high-temperature environments and have reliable stability.

[0018] In summary, the system for real-time monitoring of molten metal temperature in a medium-frequency furnace provided by this utility model has at least the following beneficial effects:

[0019] 1. It can monitor the temperature changes of the molten liquid in the crucible in real time.

[0020] 2. It reduces the risk of thermocouple damage, thereby ensuring the service life of the thermocouple. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any novel effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the crucible body in this utility model.

[0024] The attached figures are labeled as follows: 1. Crucible body; 2. Thermocouple; 3. Measuring end; 4. Mounting groove; 5. Mounting hole; 6. Furnace platform; 7. Support. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the following description is provided in conjunction with the appendix. Figure 1-2 The present invention will be further described in detail below with reference to specific embodiments.

[0026] Please see Figure 1-2 This embodiment provides a system for real-time monitoring of the molten metal temperature in a medium-frequency furnace, including a crucible body 1 and a thermocouple 2. An installation groove 4 is formed in the inner wall of the crucible body 1, and the measuring end 3 of the thermocouple 2 and the portion adjacent to the measuring end 3 are embedded in the installation groove 4. The end of the thermocouple 2 furthest from the measuring end 3 is connected to a display instrument or a matching instrument.

[0027] By adopting the above scheme, during use, the temperature change of the molten liquid inside the crucible body 1 can be monitored in real time by the thermocouple 2 installed inside the crucible body 1, eliminating the need for manual measurement and simplifying the operation, making it more convenient to use. Furthermore, since the measuring end 3 of the thermocouple 2 and the portion adjacent to it are embedded in the mounting groove 4 on the inner wall of the crucible body 1, the measuring end 3 of the thermocouple 2 is less likely to be impacted when material is added to the crucible body 1, reducing the risk of damage to the measuring end 3 of the thermocouple 2.

[0028] To facilitate deeper insertion of the measuring end 3 of the thermocouple 2 into the molten liquid, preferably, the mounting groove 4 is vertically oriented, meaning its length is vertical. The upper end of the mounting groove 4 is positioned near the top of the crucible body 1.

[0029] To ensure that the measuring end 3 of thermocouple 2 is in contact with the molten liquid on all sides, thereby guaranteeing the accuracy of temperature measurement, a further configuration is provided where there are gaps between the measuring end 3 of thermocouple 2 and the side and bottom walls of the mounting groove 4. The gaps between the measuring end 3 and the side and bottom walls of the mounting groove 4 should not be too large, as this would affect the service life of the crucible body 1; nor should they be too small. The gaps should allow the molten liquid inside the crucible body 1 to flow in and surround the measuring end 3. In this embodiment, to ensure sufficient contact between the molten liquid and the measuring end 3, the gap between the lower end of the measuring end 3 and the lower end of the mounting groove 4 is preferably set to 10 mm. For accurate temperature measurement, preferably, when the molten liquid in the melting crucible reaches the rated melting point, the measuring end 3 of thermocouple 2 extends at least 50 mm below the surface of the molten liquid inside the crucible body 1.

[0030] To facilitate the fixing of thermocouple 2 and to avoid impact on thermocouple 2 when adding metal raw materials into crucible body 1, a mounting hole 5 communicating with the top of mounting groove 4 is further provided on the side wall of crucible body 1. The end of thermocouple 2 away from measuring end 3 is located on the outside of the side wall of crucible body 1, and part of thermocouple 2 passes through the mounting hole 5.

[0031] A furnace platform 6 is provided on the outside of the crucible body 1, and one end of the thermocouple 2 located outside the crucible body 1 is fixed to the furnace platform 6. A bracket 7 is detachably connected to the furnace platform 6, and one end of the thermocouple 2 located outside the crucible body 1 is fixed to the bracket 7. The bracket 7 is connected to the furnace platform 6 by bolts.

[0032] In some embodiments, the thermocouple 2 can specifically be a sheathed thermocouple of the prior art, preferably a sheathed tungsten-rhenium thermocouple of the prior art. The portion of the sheathed tungsten-rhenium thermocouple with the protective tube in the prior art can be bent, allowing for easy bending into an L-shape. During assembly, the measuring end 3 of the sheathed tungsten-rhenium thermocouple can pass through the mounting hole 5. By bending the sheathed tungsten-rhenium thermocouple downwards, the measuring end 3 is embedded in the mounting groove 4, thereby facilitating adaptation to the mounting hole 5 and mounting groove 4 opened on the crucible body 1. Specifically, the phrase "a section of the horizontal portion of the thermocouple 2 passes through the mounting hole 5, and the measuring end 3 of the thermocouple 2 and the portion adjacent to the measuring end 3 are embedded in the mounting groove 4" refers to the measuring end 3 of the thermocouple 2 and the vertically arranged portion adjacent to the measuring end 3 being embedded in the mounting groove 4.

[0033] It should be noted that words indicating direction in this article, such as "up" and "down," are all in the format of "upper" and "lower." Figure 1 The direction setting is for ease of description only and has no other specific meaning.

[0034] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes the aforementioned element.

[0035] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A system for real-time monitoring of molten metal temperature in a medium-frequency furnace, comprising a crucible body (1), characterized in that, It also includes a thermocouple (2), and the inner wall of the crucible body (1) is provided with an installation groove (4), and the measuring end (3) of the thermocouple (2) and the part adjacent to the measuring end (3) are embedded in the installation groove (4).

2. The system for real-time monitoring of molten metal temperature in a medium-frequency furnace as described in claim 1, characterized in that, The mounting slot (4) is set vertically.

3. The system for real-time monitoring of molten metal temperature in a medium-frequency furnace as described in claim 2, characterized in that, There is a gap between the measuring end (3) of the thermocouple (2) and the side wall and bottom wall of the mounting groove (4).

4. The system for real-time monitoring of molten metal temperature in a medium-frequency furnace as described in claim 3, characterized in that, The gap between the measuring end (3) of the thermocouple (2) and the side wall located at the lower part of the mounting groove (4) is 10 mm.

5. A system for real-time monitoring of molten metal temperature in a medium-frequency furnace as described in any one of claims 2-4, characterized in that, The crucible body (1) has a mounting hole (5) on its side wall that communicates with the top of the mounting groove (4). The end of the thermocouple (2) away from the measuring end (3) is located on the outside of the side wall of the crucible body (1), and part of the thermocouple (2) passes through the mounting hole (5).

6. The system for real-time monitoring of molten metal temperature in a medium-frequency furnace as described in claim 5, characterized in that, A furnace platform (6) is provided on the outside of the crucible body (1), and one end of the thermocouple (2) located outside the crucible body (1) is fixed on the furnace platform (6).

7. The system for real-time monitoring of molten metal temperature in a medium-frequency furnace as described in claim 6, characterized in that, A bracket (7) is detachably connected to the furnace platform (6), and one end of the thermocouple (2) located outside the crucible body (1) is fixed on the bracket (7).

8. The system for real-time monitoring of molten metal temperature in a medium-frequency furnace as described in claim 7, characterized in that, The bracket (7) is connected to the furnace platform (6) by bolts.

9. The system for real-time monitoring of molten metal temperature in a medium-frequency furnace as described in claim 1, characterized in that, The thermocouple (2) is an armored thermocouple.

10. The system for real-time monitoring of molten metal temperature in a medium-frequency furnace as described in claim 9, characterized in that, The thermocouple (2) is an armored tungsten-rhenium thermocouple.

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