Electric furnace dot matrix interactive temperature detection alarm device
By combining infrared thermal imaging equipment with a furnace bottom temperature measurement module, a temperature detection device has been developed that solves the problem of easy failure of electric furnace temperature monitoring equipment, and realizes automatic monitoring of electric furnace temperature throughout its entire life cycle and safe production management.
Patent Information
- Application Number
- CN202520058237.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-10
AI Technical Summary
In the existing electric furnace method for producing yellow phosphorus, temperature monitoring equipment is prone to failure, is difficult to maintain, and the handheld temperature measuring tools used by operators are uncontrollable, posing safety hazards. Furthermore, the economic losses from the shutdown of the electric furnace are significant.
A temperature detection device combining infrared thermal imaging equipment and furnace bottom temperature measurement module, including infrared thermal imaging equipment, furnace bottom temperature measurement module and over-temperature audible and visual alarm module, can realize all-round detection of electric furnace wall and automatic monitoring of furnace bottom temperature.
It enables automatic monitoring of the electric furnace temperature throughout its entire life cycle, improves safe production and operation management capabilities, simplifies maintenance, and reduces the risk of electric furnace overheating.
Smart Images
Figure CN223597006U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electric furnace technology, specifically relating to an interactive temperature detection and alarm device for electric furnace dot matrix. Background Technology
[0002] Yellow phosphorus is an important basic industrial raw material. Industrially, it is used to produce industrial phosphoric acid, food additive phosphoric acid, phosphates, phosphate fertilizers, rodenticides, and pesticides. Militarily, it is often used to make smoke bombs. Currently, the electric furnace method remains the mainstream technology for yellow phosphorus production in my country. In recent years, yellow phosphorus production enterprises have experienced numerous safety accidents, including fires and explosions, causing significant economic losses and casualties. On March 1, 2014, at 7:00 AM, the No. 2 electric furnace at Sichuan Tianyi Chemical Co., Ltd. experienced a refractory brick failure at the furnace bottom, causing the molten pool to sink, the furnace bottom to burn through, and molten phosphorus slag to leak and explode upon contact with moisture, resulting in the deaths of three employees and direct economic losses of approximately 6 million yuan. Investigation revealed that the long-term failure of the temperature monitoring device installed at the bottom of the electric furnace was one of the main causes of the accident.
[0003] The electric arc furnace (EAF) process for producing phosphorus involves heating a mixture of phosphate rock and coke to 1300–1500°C in an electric furnace. The P2O5 in the phosphate rock is reduced to elemental phosphorus. During normal operation, the molten slag temperature in the lower melting pool is approximately 1500°C, and the temperature at the charge-laden area on the furnace wall is approximately 1000–1200°C. If the refractory bricks at the furnace bottom fail, charge leakage can easily lead to explosions and fires. Therefore, controlling the temperatures of the furnace bottom and walls within the normal range is crucial to reducing equipment safety risks. The normal furnace bottom temperature is 230–240°C, with a fluctuation range of approximately 30°C, and a temperature redline of 300°C. The normal furnace wall temperature should be controlled below 210°C, with a temperature redline of 300°C. Currently, in the EAF process for producing yellow phosphorus, temperature monitoring equipment requires sensors to be inserted into the furnace. This monitoring equipment is prone to failure and is difficult to maintain. Maintaining the furnace without stopping operation is extremely difficult, and stopping the furnace results in significant economic losses. If the equipment fails, the operator will have to use a handheld infrared thermometer to regularly measure the temperature of the furnace bottom and walls. This increases the number of uncontrollable and uncertain factors. If the operator does not measure the temperature in accordance with the prescribed method or at the prescribed time, there is a risk that the temperature rise of the furnace bottom or walls may not be detected in time. Utility Model Content
[0004] The purpose of this utility model is to solve the above-mentioned problems and provide a modern temperature measurement method that combines furnace bottom temperature measurement with infrared thermal imaging to create an intelligent temperature monitoring device, improve the enterprise's safe production and operation management capabilities, facilitate the maintenance of the temperature measurement device, and achieve automatic temperature monitoring of the electric furnace throughout its entire life cycle.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an interactive temperature detection and alarm device for an electric furnace, comprising an infrared thermal imaging device, a furnace bottom temperature measuring module, and an over-temperature audible and visual alarm module. The furnace bottom temperature measuring module includes, from top to bottom, a first support, a second support, a first rod, and a base. A temperature measuring resistor is installed on the first support. The first and second supports are connected by bolts, and the top of the first rod is fixed to the bottom of the second support. The furnace bottom temperature measuring module is located at the bottom of the electric furnace. Several point-type temperature sensors are installed on the furnace bottom and are evenly distributed. The bottom of the first rod of the furnace bottom temperature measuring module is located inside the second rod of the furnace bottom temperature measuring module, and the bottom of the second rod of the furnace bottom temperature measuring module is fixed to the base of the furnace bottom temperature measuring module by bolts. The infrared thermal imaging equipment is arranged around the electric furnace to realize all-round detection of the furnace wall. The infrared imaging equipment and the furnace bottom temperature measuring module are electrically connected to the over-temperature audible and visual alarm module. The over-temperature audible and visual alarm module includes a horn and an alarm indicator light. After the furnace bottom temperature measuring module and the infrared thermal imaging equipment collect the temperature data of the electric furnace, they issue an alarm prompt through the horn and the alarm indicator light.
[0006] Preferably, the first bracket of the furnace bottom temperature measuring module is a sheet metal bending structure with a "U"-shaped cross-section. The first bracket has connecting holes on both sides and a bottom hole at its bottom. Both the connecting holes and the bottom hole are through holes. The connecting hole is oblong, and the bottom hole has a rectangular cross-section. The bottom hole is used to install a temperature sensor.
[0007] Preferably, the second support of the furnace bottom temperature measuring module is a sheet metal bending structure with a "U" shaped cross-section. The second support of the furnace bottom temperature measuring module has a through hole, and a bolt passes through the through hole to connect with the connecting hole of the first support of the furnace bottom temperature measuring module, thereby connecting the first support of the furnace bottom temperature measuring module and the second support of the furnace bottom temperature measuring module.
[0008] Preferably, the first rod of the furnace bottom temperature measuring module is a barrel-shaped structure with openings at the top and bottom. The top of the first rod of the furnace bottom temperature measuring module has a groove, and the bottom of the first rod of the furnace bottom temperature measuring module has a base plate. The base plate and the first rod of the furnace bottom temperature measuring module together form a whole with a "T" shaped cross section.
[0009] Preferably, the second rod of the furnace bottom temperature measuring module is a barrel-shaped structure with openings at the top and bottom. The top of the second rod of the furnace bottom temperature measuring module is provided with a top plate, and the bottom of the second rod of the furnace bottom temperature measuring module is provided with a bottom plate. The first rod of the furnace bottom temperature measuring module is provided with a disc. The bottom plate and the first rod of the furnace bottom temperature measuring module together form a whole with a "T" shaped cross section. The disc of the first rod of the furnace bottom temperature measuring module is sleeved on the first rod of the furnace bottom temperature measuring module and fixedly connected.
[0010] Preferably, the furnace bottom temperature measuring module base is a cuboid cover structure. The top of the furnace bottom temperature measuring module base is provided with a first hole and a second hole, and the side of the furnace bottom temperature measuring module base is provided with a third hole. The first hole is located in the middle of the top of the furnace bottom temperature measuring module base. The second hole corresponds to the through hole of the second rod base of the furnace bottom temperature measuring module. Bolts are inserted into the second hole and the through hole of the second rod base of the furnace bottom temperature measuring module to fix the second rod and the furnace bottom temperature measuring module base.
[0011] Preferably, the temperature measuring resistor is a PT100 resistor. The bottom of the electric furnace is measured using a PT100 resistance point. PT100 resistor refers to a platinum resistance thermometer, where "PT" refers to the element "platinum"; "100" refers to the characteristic that the resistance value of the platinum resistance thermometer is 100Ω at 0℃, so it is usually called a PT100 resistance thermometer or platinum resistance thermometer.
[0012] Preferably, the infrared thermal imaging device is connected to an infrared thermal imaging probe and a cabinet, and a power supply is installed in the cabinet. The infrared thermal imaging device probe, the furnace bottom temperature measurement module, and the over-temperature audible and visual alarm module are powered by the power supply in the cabinet.
[0013] The beneficial effects of this utility model are:
[0014] 1. The electric furnace dot matrix interactive temperature detection and alarm device provided by this utility model can create an automatic temperature detection device based on modern temperature measurement methods such as furnace bottom temperature measurement and infrared thermal imaging, improve the enterprise's safe production operation and management capabilities, and achieve automatic temperature monitoring of the electric furnace wall throughout its entire life cycle.
[0015] 2. This invention allows for temperature monitoring without altering the original electric furnace structure, as altering the original structure could lead to accidents. This invention provides surface-level monitoring of the furnace wall temperature, offering greater accuracy and eliminating blind spots, thus enabling a safer assessment of the furnace wall temperature.
[0016] 3. This utility model makes the maintenance and upkeep of temperature monitoring equipment convenient and quick, and can be quickly disassembled and assembled while the electric furnace is in operation.
[0017] 4. This utility model can monitor the temperature of the furnace bottom and furnace wall 24 hours a day, and comprehensively improve the risk prevention and control capabilities of electric furnace overheating. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the furnace bottom temperature measuring module in an electric furnace dot matrix interactive temperature detection and alarm device of this utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the first support of the furnace bottom temperature measuring module of this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the second bracket of the furnace bottom temperature measuring module of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the first rod of the furnace bottom temperature measuring module of this utility model;
[0022] Figure 5 This is a schematic diagram of the structure of the second rod of the furnace bottom temperature measuring module of this utility model;
[0023] Figure 6 This is a schematic diagram showing the connection between the first rod and the second rod of the furnace bottom temperature measuring module of this utility model;
[0024] Figure 7 This is a schematic diagram of the structure of the furnace bottom temperature measuring module base of this utility model;
[0025] Figure 8 This is a schematic diagram of the installation of the first bracket of the temperature measuring resistor and the furnace bottom temperature measuring module of this utility model;
[0026] Figure 9 This is a schematic diagram of the connection principle of the infrared thermal imaging device of this utility model;
[0027] Figure 10 This is a schematic diagram illustrating the principle of this utility model.
[0028] Explanation of reference numerals in the attached drawings: 1. First bracket of the furnace bottom temperature measurement module; 2. Second bracket of the furnace bottom temperature measurement module; 3. First rod of the furnace bottom temperature measurement module; 4. Second rod of the furnace bottom temperature measurement module; 5. Base of the furnace bottom temperature measurement module; 11. Connecting hole of the first bracket of the furnace bottom temperature measurement module; 12. Bottom hole of the first bracket of the furnace bottom temperature measurement module; 21. Through hole of the second bracket of the furnace bottom temperature measurement module; 31. Groove of the first rod of the furnace bottom temperature measurement module; 32. Base plate of the first rod of the furnace bottom temperature measurement module; 33. Disc of the first rod of the furnace bottom temperature measurement module; 41. Top plate of the second rod of the furnace bottom temperature measurement module; 42. Base plate of the second rod of the furnace bottom temperature measurement module; 51. The top has the first hole of the base of the furnace bottom temperature measurement module; 52. The second hole of the base of the furnace bottom temperature measurement module; 53. The third hole of the base of the furnace bottom temperature measurement module; 421. Through hole of the base plate of the second rod of the furnace bottom temperature measurement module; 422. Support spring. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0030] like Figures 1 to 10 As shown, this utility model provides an interactive temperature detection and alarm device for an electric furnace, including an infrared thermal imaging device, a furnace bottom temperature measurement module, and an over-temperature audible and visual alarm module. The furnace bottom temperature measurement module includes, from top to bottom, a first support 1, a second support 2, a first rod 3, a second rod 4, and a base 5. A temperature-sensing resistor is installed on the first support 1. The first support 1 and the second support 2 are connected by bolts. The top of the first rod 3 is fixedly connected to the bottom of the second support 2. The furnace bottom temperature measurement module is located at the bottom of the electric furnace, and several point-type temperature sensors are installed on the furnace bottom, evenly distributed. The bottom of the first rod 3 is located inside the second rod 4, and the bottom of the second rod 4 is fixedly connected to the base 5 by bolts. Infrared thermal imaging equipment is positioned around the electric furnace to achieve omnidirectional detection of the furnace wall. The infrared imaging equipment and the furnace bottom temperature measurement module are electrically connected to an over-temperature audible and visual alarm module, which includes a horn and alarm indicator lights. After collecting the furnace temperature data, the furnace bottom temperature measurement module and the infrared thermal imaging equipment issue an alarm through the horn and alarm indicator lights.
[0031] In this embodiment, the horn and the alarm indicator light constitute a two-level sound and light alarm over-limit voice broadcast system. The sound emitted by the horn and the light emitted by the alarm indicator light serve as alarm prompts.
[0032] like Figure 2 As shown, the first bracket 1 of the furnace bottom temperature measuring module is a sheet metal bending structure. The cross-section of the first bracket 1 of the furnace bottom temperature measuring module is a "U" shaped structure. The two sides of the first bracket 1 of the furnace bottom temperature measuring module are provided with furnace bottom temperature measuring module first bracket connection holes 11. The bottom of the first bracket 1 of the furnace bottom temperature measuring module is provided with furnace bottom temperature measuring module first bracket bottom hole 12. Both the furnace bottom temperature measuring module first bracket connection holes 11 and the furnace bottom temperature measuring module first bracket bottom hole 12 are through holes. The furnace bottom temperature measuring module first bracket connection hole 11 is an oblong hole. The cross-section of the furnace bottom temperature measuring module first bracket bottom hole 12 is rectangular. The furnace bottom temperature measuring module first bracket bottom hole 12 is used to install a temperature sensor.
[0033] In this embodiment, the number of connecting holes 11 of the first bracket of the furnace bottom temperature measuring module is two, and they are symmetrically distributed at the bent end of the first bracket 1 of the furnace bottom temperature measuring module. The connecting holes 11 of the first bracket of the furnace bottom temperature measuring module are arranged vertically, that is, when connected to the second bracket 2 of the furnace bottom temperature measuring module, the height of the first bracket 1 of the furnace bottom temperature measuring module can be adjusted by adjusting the bolts passing through different positions on the inner surface of the connecting holes 11. The first bracket 1 of the furnace bottom temperature measuring module is used to fix the temperature sensor and prevent it from shifting.
[0034] like Figure 3 As shown, the second support 2 of the furnace bottom temperature measuring module is a sheet metal bending structure. The cross-section of the second support 2 of the furnace bottom temperature measuring module is a "U" shaped structure. The second support 2 of the furnace bottom temperature measuring module is provided with a through hole 21. A bolt passes through the through hole 21 of the furnace bottom temperature measuring module and connects to the connecting hole 11 of the first support of the furnace bottom temperature measuring module, thereby connecting the first support 1 of the furnace bottom temperature measuring module and the second support 2 of the furnace bottom temperature measuring module.
[0035] The first support 1 and the second support 2 of the furnace bottom temperature measuring module are arranged in parallel, and the distance between the U-shaped openings of the first support 1 and the second support 2 is greater than that of the second support 2. The through hole 21 of the second support 2 is a threaded hole that mates with the corresponding bolt thread.
[0036] like Figure 4 As shown, the first rod 3 of the furnace bottom temperature measuring module is a barrel-shaped structure with openings at the top and bottom. The top of the first rod 3 of the furnace bottom temperature measuring module has a groove 31, the bottom of the first rod 3 of the furnace bottom temperature measuring module has a base plate 32, and the first rod 3 of the furnace bottom temperature measuring module has a disc 33. The base plate 32 and the first rod 3 of the furnace bottom temperature measuring module together form a whole with a "T" shaped cross section. The disc 33 of the furnace bottom temperature measuring module is sleeved on the first rod 3 of the furnace bottom temperature measuring module and fixedly connected.
[0037] In actual use, the staff can press down the first rod disc 33 of the furnace bottom temperature measuring module, thereby driving the first rod 3 of the furnace bottom temperature measuring module to move, which increases the installation speed of the entire equipment.
[0038] The wires of the temperature measuring resistor enter the interior of the first rod 3 of the furnace bottom temperature measuring module through the groove 31 of the first rod, which facilitates the arrangement of the relevant wires and avoids the wires from affecting the use of other equipment.
[0039] like Figure 5As shown, the second rod 4 of the furnace bottom temperature measuring module is a barrel-shaped structure with openings at the top and bottom. The top of the second rod 4 of the furnace bottom temperature measuring module is provided with a top plate 41, and the bottom of the second rod 4 of the furnace bottom temperature measuring module is provided with a bottom plate 42. Both the top plate 41 and the bottom plate 42 of the furnace bottom temperature measuring module are annular structures. The bottom plate 42 of the furnace bottom temperature measuring module is provided with a through hole 421. Bolts pass through the through hole 421 and are fixedly connected to the base 5 of the furnace bottom temperature measuring module.
[0040] The through hole 421 of the second rod base plate of the furnace bottom temperature measuring module is a threaded hole structure. There are three through holes 421 of the second rod base plate of the furnace bottom temperature measuring module, which are evenly distributed on the second rod base plate 42 of the furnace bottom temperature measuring module.
[0041] A support spring 422 is installed inside the second rod 4 of the furnace bottom temperature measuring module. The bottom of the support spring 422 abuts against the top of the base 5 of the furnace bottom temperature measuring module, and the top of the support spring 422 abuts against the bottom of the first rod 3 of the furnace bottom temperature measuring module. The support spring 422 pushes the first rod 3 of the furnace bottom temperature measuring module upward, thereby allowing the temperature measuring resistor on the first bracket 1 of the furnace bottom temperature measuring module to make better contact with the furnace bottom. In this embodiment, the support spring 422 is made of 304 stainless steel. In actual use, the bottom of the first rod 3 of the furnace bottom temperature measuring module is located inside the second rod 4 of the furnace bottom temperature measuring module. The top plate 41 of the second rod of the furnace bottom temperature measuring module has a circular structure. The outer diameter of the top plate 41 of the second rod of the furnace bottom temperature measuring module is larger than the outer diameter of the bottom plate 32 of the first rod of the furnace bottom temperature measuring module, and the inner diameter of the top plate 41 of the second rod of the furnace bottom temperature measuring module is smaller than the outer diameter of the bottom plate 32 of the first rod of the furnace bottom temperature measuring module. This allows the end of the first rod 3 of the furnace bottom temperature measuring module to move inside the second rod 4 of the furnace bottom temperature measuring module without detaching from the top of the second rod 4 of the furnace bottom temperature measuring module.
[0042] like Figure 7 As shown, the furnace bottom temperature measuring module base 5 is a cuboid cover structure. The top of the furnace bottom temperature measuring module base 5 is provided with a first hole 51 and a second hole 52. The side of the furnace bottom temperature measuring module base 5 is provided with a third hole 53. The first hole 51 is located in the middle of the top of the furnace bottom temperature measuring module base 5. The second hole 52 corresponds to the through hole 421 of the second rod base plate of the furnace bottom temperature measuring module. Bolts are inserted into the second hole 52 and the through hole 421 of the second rod base plate of the furnace bottom temperature measuring module to fix the second rod 4 of the furnace bottom temperature measuring module and the furnace bottom temperature measuring module base 5.
[0043] There are three second holes 52 on the base of the furnace bottom temperature measuring module, and they are evenly located around the first hole 51 on the base of the furnace bottom temperature measuring module.
[0044] The temperature-sensing resistor is a PT100 resistor. The furnace bottom uses a PT100 resistance temperature sensor. PT100 refers to a platinum resistance thermometer, where "PT" stands for platinum and "100" indicates that the resistance of a platinum resistance thermometer is 100Ω at 0℃. Therefore, it is commonly called a PT100 resistance thermometer or platinum resistance thermometer. In practical use, the temperature-sensing resistor functions as a temperature sensor. It can be replaced with other types of temperature sensors according to actual needs, thereby increasing the practicality of this invention.
[0045] The infrared thermal imaging equipment includes existing infrared thermal imaging probes, which are connected to a cabinet. The cabinet houses a power supply, which powers the infrared thermal imaging probes, the furnace bottom temperature measurement module, and the over-temperature audible and visual alarm module. The infrared thermal imaging probes utilize existing, mature technology.
[0046] The infrared thermal imaging device and furnace bottom temperature measurement module of this invention can be quickly installed and disassembled, making installation and maintenance convenient. This invention, by employing the furnace bottom temperature measurement module and infrared thermal imaging device, constructs an automatic temperature detection device for electric furnaces, providing support for the safe operation of electric furnaces.
[0047] In this embodiment, the over-temperature audible, visual, and voice alarm module is a mature existing technology. Information collected by the infrared thermal imaging device and the furnace bottom temperature measurement module is used to issue alarm prompts through the over-temperature audible, visual, and voice alarm module.
[0048] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on these technical teachings disclosed in this invention without departing from the essence of this invention, and these modifications and combinations are still within the scope of protection of this invention.
Claims
1. An interactive temperature detection and alarm device for an electric furnace, characterized in that: The system includes an infrared thermal imaging device, a furnace bottom temperature measurement module, and an over-temperature audible and visual alarm module. The furnace bottom temperature measurement module comprises, from top to bottom, a first support (1), a second support (2), a first rod (3), a second rod (4), and a base (5). A temperature-measuring resistor is installed on the first support (1). The first support (1) and the second support (2) are connected by bolts. The top of the first rod (3) is fixedly connected to the bottom of the second support (2). The furnace bottom temperature measurement module is located in an electrical... At the bottom of the furnace, several point-type temperature sensors are installed and evenly distributed. The bottom of the first rod (3) of the furnace bottom temperature measurement module is located inside the second rod (4) of the furnace bottom temperature measurement module. The bottom of the second rod (4) of the furnace bottom temperature measurement module is fixed to the base (5) of the furnace bottom temperature measurement module by bolts. The infrared thermal imaging equipment is arranged around the electric furnace to realize all-round detection of the furnace wall. The infrared imaging equipment and the furnace bottom temperature measurement module are electrically connected to the over-temperature sound and light alarm module. The over-temperature sound and light alarm module includes a horn and an alarm indicator light. After the furnace bottom temperature measurement module and the infrared thermal imaging equipment collect the temperature data of the electric furnace, they issue an alarm through the horn and the alarm indicator light.
2. The electric furnace dot matrix interactive temperature detection and alarm device according to claim 1, characterized in that: The first bracket (1) of the furnace bottom temperature measuring module is a sheet metal bending structure. The cross-section of the first bracket (1) of the furnace bottom temperature measuring module is a "U" shaped structure. The two sides of the first bracket (1) of the furnace bottom temperature measuring module are provided with furnace bottom temperature measuring module first bracket connection holes (11). The bottom of the first bracket (1) of the furnace bottom temperature measuring module is provided with furnace bottom temperature measuring module first bracket bottom hole (12). Both the furnace bottom temperature measuring module first bracket connection holes (11) and the furnace bottom temperature measuring module first bracket bottom hole (12) are through holes. The furnace bottom temperature measuring module first bracket connection hole (11) is an oblong hole. The cross-section of the furnace bottom temperature measuring module first bracket bottom hole (12) is rectangular. The furnace bottom temperature measuring module first bracket bottom hole (12) is used to install a temperature sensor.
3. The electric furnace dot matrix interactive temperature detection and alarm device according to claim 1, characterized in that: The second support (2) of the furnace bottom temperature measuring module is a sheet metal bending structure. The cross section of the second support (2) of the furnace bottom temperature measuring module is a "U" shaped structure. The second support (2) of the furnace bottom temperature measuring module is provided with a through hole (21). A bolt is inserted in the through hole (21) of the furnace bottom temperature measuring module and connected to the connecting hole (11) of the first support of the furnace bottom temperature measuring module, thereby connecting the first support (1) of the furnace bottom temperature measuring module and the second support (2) of the furnace bottom temperature measuring module.
4. The electric furnace dot matrix interactive temperature detection and alarm device according to claim 1, characterized in that: The furnace bottom temperature measuring module first rod (3) is a barrel-shaped structure with openings at the top and bottom. The top of the furnace bottom temperature measuring module first rod (3) is provided with a furnace bottom temperature measuring module first rod groove (31). The bottom of the furnace bottom temperature measuring module first rod (3) is provided with a furnace bottom temperature measuring module first rod base plate (32). The furnace bottom temperature measuring module first rod (3) is provided with a furnace bottom temperature measuring module first rod disc (33). The furnace bottom temperature measuring module first rod base plate (32) and the furnace bottom temperature measuring module first rod (3) together form a whole with a "T" shaped cross section. The furnace bottom temperature measuring module first rod disc (33) is sleeved on the furnace bottom temperature measuring module first rod (3) and fixedly connected.
5. The electric furnace dot matrix interactive temperature detection and alarm device according to claim 1, characterized in that: The second rod (4) of the furnace bottom temperature measuring module is a barrel-shaped structure with openings at the top and bottom. The top of the second rod (4) of the furnace bottom temperature measuring module is provided with a top plate (41) and the bottom of the second rod (4) of the furnace bottom temperature measuring module is provided with a bottom plate (42). Both the top plate (41) and the bottom plate (42) of the furnace bottom temperature measuring module are annular structures. The bottom plate (42) of the furnace bottom temperature measuring module is provided with a through hole (421). Bolts pass through the through hole (421) of the bottom plate and are fixedly connected to the base (5) of the furnace bottom temperature measuring module.
6. The electric furnace dot matrix interactive temperature detection and alarm device according to claim 1, characterized in that: The furnace bottom temperature measuring module base (5) is a rectangular cover structure. The top of the furnace bottom temperature measuring module base (5) is provided with a first hole (51) and a second hole (52). The side of the furnace bottom temperature measuring module base (5) is provided with a third hole (53). The first hole (51) is located in the middle of the top of the furnace bottom temperature measuring module base (5). The second hole (52) corresponds to the through hole (421) of the second rod of the furnace bottom temperature measuring module. Bolts are inserted into the second hole (52) and the through hole (421) of the second rod of the furnace bottom temperature measuring module to fix the second rod (4) of the furnace bottom temperature measuring module and the furnace bottom temperature measuring module base (5).
7. The electric furnace dot matrix interactive temperature detection and alarm device according to claim 1, characterized in that: The temperature measuring resistor is a PT100 resistor. The bottom of the electric furnace is measured using a PT100 resistance point. PT100 resistor refers to a platinum resistance thermometer, where "PT" refers to the element "platinum"; "100" refers to the characteristic that the resistance value of the platinum resistance thermometer is 100Ω at 0℃, so it is usually called a PT100 resistance thermometer or platinum resistance thermometer.
8. The electric furnace dot matrix interactive temperature detection and alarm device according to claim 1, characterized in that: The infrared thermal imaging device is connected to an infrared thermal imaging probe and a cabinet. A power supply is installed inside the cabinet. The infrared thermal imaging device probe, the furnace bottom temperature measurement module, and the over-temperature audible and visual alarm module are powered by the power supply inside the cabinet.