Atmosphere protection furnace structure for hanger shaft heat treatment

Abstract

The utility model discloses an atmosphere protection furnace structure for hanger shaft heat treatment, which belongs to the technical field of heat treatment and comprises a kiln body, a vacuum shell is fixedly connected to the outer side of the kiln body, a monitoring assembly is fixedly connected to the side face of the vacuum shell, and the monitoring assembly comprises a touch screen. The side face of the touch screen is electrically connected with a temperature sensing rod, the temperature sensing rod penetrates into the inner side of the kiln body, the inner side of the kiln body is fixedly connected with an atmosphere concentration monitoring probe, the inner side of the kiln body is fixedly connected with a miniature pressure sensor, and the miniature pressure sensor is fixedly connected with a temperature sensor. An infrared thermal imager is fixedly connected to the inner side of the kiln body. According to the atmosphere protection furnace structure for hanger shaft heat treatment, the temperature sensing rod monitors the temperature, the atmosphere concentration monitoring probe monitors the gas concentration, the micro pressure sensor captures local micro pressure, and the infrared thermal imager monitors the state of a workpiece. And various data are presented on a 15-inch high-definition touch screen, so that visual man-machine interaction is realized.

Description

Technical Field

[0001] This utility model relates to an atmosphere protection furnace structure for hanging shaft heat treatment, belonging to the field of kiln technology. Background Technology

[0002] As a core piece of equipment in the modern heat treatment field, the atmosphere protection furnace's structural design deeply integrates materials science, thermal engineering principles, and automation technology, aiming to construct a precision high-temperature treatment system under a controlled atmosphere environment. The entire system, designed to optimize workpiece performance, consists of five core modules working in tandem: the furnace body, heating system, atmosphere control system, cooling system, and intelligent control unit. Through precise coordination of these multiple systems, it ensures that the workpiece completes the heat treatment process under ideal conditions of oxidation isolation and precise temperature control.

[0003] For example, Chinese Utility Model Patent No. CN219869108U discloses a novel atmosphere-protected kiln structure, including a kiln body and a gas pressure regulating pipe. Both sides of the kiln body are equipped with flow guide chambers, and an air inlet and collection chamber is installed at the middle of one end of the kiln body. Distributing gas pipes are evenly installed on the side of the flow guide chambers closest to the kiln body, and these distributing gas pipes are all connected to the kiln body. Gas pressure regulating pipes are installed on both sides of the kiln body. This utility model, with its air inlet and collection chambers, connecting gas pipes, distributing gas pipes, and flow guide chambers, allows gas to be distributed through the connecting gas pipes to the flow guide chambers installed on both sides of the kiln body during use. Then, the gas is evenly blown out through the distributing gas pipes, ensuring that the gas concentration remains uniform across different locations within the kiln body, thus guaranteeing the atmosphere protection effect inside the kiln body.

[0004] During operation, key information such as the microstructure transformation and dimensional deformation of the workpiece cannot be obtained in real time during heat treatment. Operators can only rely on experience and post-treatment inspection for judgment, which not only reduces production efficiency but also increases scrap rate and the difficulty of process optimization. To overcome these bottlenecks, a new generation of atmosphere-protected furnaces urgently needs to introduce an atmosphere-protected furnace structure for shaft-mounted heat treatment. Utility Model Content

[0005] The purpose of this invention is to provide an agricultural product planting and fertilization device to solve the above-mentioned problems and address the lack of direct monitoring methods for the condition of the workpiece itself.

[0006] This utility model achieves the above-mentioned objectives through the following technical solution: an atmosphere protection furnace structure for suspended shaft heat treatment, comprising a kiln body, a vacuum shell fixedly connected to the outer side of the kiln body, a monitoring component fixedly connected to the side of the vacuum shell, the monitoring component including a touch screen, a temperature sensing rod electrically connected to the side of the touch screen extending into the inner side of the kiln body, an atmosphere concentration monitoring probe fixedly connected to the inner side of the kiln body, the atmosphere concentration monitoring probe electrically connected to the side of the touch screen, a miniature pressure sensor fixedly connected to the inner side of the kiln body, the miniature pressure sensor electrically connected to the side of the touch screen, and an infrared thermal imager fixedly connected to the inner side of the kiln body, the infrared thermal imager electrically connected to the side of the touch screen. To achieve comprehensive and accurate monitoring of the internal working conditions of the kiln, a multi-dimensional intelligent sensing network is innovatively constructed inside the kiln body. High-temperature resistant temperature sensing rods, evenly distributed circumferentially along the inner wall of the furnace, capture temperature data at a high-frequency sampling rate of 10 times per second. The atmosphere concentration monitoring probe utilizes laser absorption spectroscopy technology to detect the concentrations of key gases such as O2, CO, and H2 in real time. The miniature pressure sensor, manufactured using MEMS technology, accurately measures localized micro-pressure changes and inverts the gas flow field distribution through pressure gradient data. Equipped with a dual-band infrared thermal imager, it penetrates flames and smoke through a high-temperature resistant quartz window to dynamically scan the workpiece surface. This not only monitors the workpiece's heating status in real time but also identifies surface cracks, oxide layers, and other defects through thermal image analysis. All monitoring data is transmitted to the central control unit via high-temperature shielded cables and interacts with a 15-inch high-definition touchscreen. Operators can simultaneously view temperature cloud maps, atmosphere concentration curves, pressure vector maps, and workpiece thermal images on the visual interface. Parameters can also be adjusted via the touchscreen.

[0007] Preferably, a warning light is fixedly connected to the side of the vacuum housing, and the warning light is electrically connected to the touch screen. A speaker is also fixedly connected to the side of the vacuum housing, and the speaker is electrically connected to the touch screen. When the monitored parameters exceed the preset threshold, the system will immediately activate a multi-level early warning mechanism: the speaker and the warning light will be triggered simultaneously, and the abnormal data will be marked with a red flashing box on the operation interface. If the abnormality continues for more than the safe time limit, the system will automatically execute a safety interlock procedure to cut off unnecessary heat sources and gas supply to prevent the accident from escalating.

[0008] Preferably, an air intake assembly is fixedly connected to the side of the vacuum shell. The air intake assembly includes an air intake pipe, one end of which is fixedly connected to a gas distribution pipe. A gas delivery pipe is fixedly connected to the side of the gas distribution pipe, and one end of the gas delivery pipe is fixedly connected to a gas distribution box. A one-way gas pipe is fixedly connected to the lower surface of the gas distribution box. One end of the one-way gas pipe extends into the inner side of the kiln body. After the gas enters the system through the air intake pipe, it first reaches the gas distribution pipe, which divides the gas into two parallel paths. The divided gas flows along the inner side of the specially designed gas delivery pipe and then enters the gas distribution box. The gas distribution box can perform secondary distribution and regulation of the gas. The gas is evenly divided into six independent gas paths, each equipped with a one-way gas pipe. This ensures stable unidirectional gas flow and prevents backflow of high-temperature gas or impurities in the kiln, thus ensuring the safety of the gas supply system. These six groups of gases enter the kiln body through carefully arranged air inlets at precise flow rates and angles, achieving a uniform distribution of the atmosphere inside the kiln and providing a stable and reliable gas environment for the heat treatment of workpieces.

[0009] Preferably, a gas control assembly is fixedly connected to the side of the air inlet pipe. The gas control assembly includes a gas control motor, and a gas control plate is fixedly connected to the output end of the gas control motor. The gas control plate is located inside the air inlet pipe. When the system receives a control command, the gas control motor drives the gas control plate to rotate with precise torque and speed according to a preset program or real-time monitoring data. By changing the overlapping area of ​​the vent hole of the gas control plate and the air inlet channel, stepless adjustment of the gas flow rate can be achieved, flexibly changing the gas entry angle and flow velocity distribution, thereby meeting the differentiated requirements of different heat treatment processes for the furnace atmosphere and effectively improving process stability and product quality consistency.

[0010] Preferably, an exhaust assembly is fixedly connected to the upper surface of the kiln body. The exhaust assembly includes an exhaust pipe, an electric telescopic rod is fixedly connected to the inner side of the exhaust pipe, and a blocking post is fixedly connected to one end of the electric telescopic rod. An outlet pipe is provided on the side of the exhaust pipe. When the furnace pressure monitoring system detects that the pressure value exceeds a preset threshold, the central control system immediately sends a command to the electric telescopic rod, which drives the blocking post to move linearly along the guide rail. In the initial state, the blocking post tightly fits against the outlet pipe opening, forming a sealed structure to prevent leakage of protective gas inside the furnace. When it is necessary to discharge waste gas to adjust the pressure, the telescopic rod quickly retracts, precisely exposing the ventilation section of the outlet pipe, allowing the waste gas to be discharged smoothly. This optimizes the gas renewal efficiency inside the furnace and ensures that the heat treatment process is carried out in a stable atmosphere.

[0011] Preferably, a waste heat utilization component is fixedly connected to the side of the kiln body. This component includes a waste heat flow pipe, one end of which is fixedly connected to a heat exchanger. A flow pipe is fixedly connected to the side of the heat exchanger, and one end of the flow pipe is fixedly connected to a waste heat carrier circulation pump. The output end of the waste heat carrier circulation pump is fixedly connected to an exchange pipe. In the waste heat recovery system, a high-efficiency plate heat exchanger serves as the core hub. When the high-temperature exhaust gas from the kiln passes through one side of the heat exchanger, the heat energy it carries is rapidly transferred through corrugated plates to the waste heat carrier on the other side. The waste heat carrier, after absorbing heat, is transported along the double-layer insulated flow pipe. The waste heat carrier circulation pump connected to the end of the flow pipe is a variable frequency magnetic drive pump, which can automatically adjust its speed according to actual heat load requirements. The circulation pump continuously pumps the heated waste heat carrier to the heat-consuming end, such as a heating system, a workpiece preheating platform, or a process water heating device, achieving efficient heat recycling.

[0012] The beneficial effects of this utility model are as follows: the atmosphere protection furnace structure for hanging shaft heat treatment is equipped with a temperature sensing rod that captures temperature data at a high frequency sampling rate, and an atmosphere concentration monitoring probe that uses laser absorption spectroscopy technology to detect the concentration of key gases such as O2, CO, and H2 in real time. A miniature pressure sensor measures local micro-pressure changes, and an infrared thermal imager can monitor the heating status of the workpiece in real time. All monitoring data are transmitted to the central control unit through a high-temperature shielded cable and interact with a 15-inch high-definition touch screen. Attached Figure Description

[0013] Figure 1 This is a complete structural schematic diagram of the present invention.

[0014] Figure 2 This is a partial structural schematic diagram of the present invention.

[0015] Figure 3 This is a partial sectional view of the present invention.

[0016] Figure 4 This is a cross-sectional structural diagram of the gas control component of this utility model.

[0017] Figure 5 This is a cross-sectional structural diagram of the exhaust assembly of this utility model.

[0018] Figure 6 This is a three-dimensional structural diagram of the waste heat utilization component of this utility model.

[0019] In the diagram: 1. Kiln body; 2. Vacuum shell; 3. Monitoring components; 301. Touch screen; 302. Warning light; 303. Audio device; 304. Temperature sensor rod; 305. Atmosphere concentration monitoring probe; 306. Miniature pressure sensor; 307. Infrared thermal imager; 4. Inlet assembly; 401. Inlet pipe; 402. Gas distribution pipe; 403. Gas delivery pipe; 404. Gas distribution box; 405. One-way gas pipe; 5. Gas control assembly; 501. Gas control motor; 502. Gas control plate; 6. Exhaust assembly; 601. Exhaust pipe; 602. Electric telescopic rod; 603. Barrier post; 604. Outlet pipe; 7. Waste heat utilization assembly; 701. Waste heat flow pipe; 702. Heat exchanger; 703. Flow pipe; 704. Waste heat carrier circulation pump; 705. Exchange pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 As shown, an atmosphere protection furnace structure for hanging shaft heat treatment includes a kiln body 1, a vacuum shell 2 fixedly connected to the outer side of the kiln body 1, a monitoring component 3 fixedly connected to the side of the vacuum shell 2, the monitoring component 3 including a touch screen 301, a temperature sensing rod 304 electrically connected to the side of the touch screen 301 and extending into the inner side of the kiln body 1, an atmosphere concentration monitoring probe 305 fixedly connected to the inner side of the kiln body 1 and electrically connected to the side of the touch screen 301, a miniature pressure sensor 306 fixedly connected to the inner side of the kiln body 1 and electrically connected to the side of the touch screen 301, and an infrared thermal imager 307 fixedly connected to the inner side of the kiln body 1 and electrically connected to the side of the touch screen 301.

[0022] A warning light 302 is fixedly connected to the side of the vacuum housing 2, and the warning light 302 is electrically connected to the touch screen 301. A speaker 303 is also fixedly connected to the side of the vacuum housing 2, and the speaker 303 is electrically connected to the touch screen 301. In the kiln intelligent monitoring system, the temperature sensing rod 304, with a high-frequency sampling rate of 20 times per second, accurately captures the temperature field changes inside the furnace and can provide real-time feedback of accurate temperature data. The atmosphere concentration monitoring probe 305 is equipped with laser absorption spectroscopy technology, which can perform online detection of the concentration of key gases such as O2, CO, and H2 with a detection accuracy of ppm level, effectively avoiding process deviations caused by uneven atmosphere. The miniature pressure sensor 306 senses local micro-pressure changes with ultra-high precision. The infrared thermal imager 307 is equipped with a dual-band detection lens, which scans the workpiece surface in real time with temperature resolution, not only capturing the heating state but also intelligently identifying surface defects and abnormal temperature areas. All monitoring data is transmitted to the central control unit via double-shielded high-temperature resistant cables. After data processing, it is simultaneously displayed on a 15-inch high-definition touch screen 301, supporting the display of temperature cloud maps, concentration curves, pressure vector maps, and thermal imaging images. When any monitoring parameter exceeds the preset threshold, the warning light 302 immediately flashes red at a high frequency to issue a visual warning, and at the same time, the high-decibel sound 303 simultaneously activates a graded alarm. The system will also automatically generate process adjustment suggestions and trigger safety interlock procedures, realizing closed-loop control of the entire process from data acquisition and intelligent analysis to emergency response, and comprehensively ensuring the safety of kiln operation and the stability of heat treatment process.

[0023] like Figures 1-5 As shown, an air intake assembly 4 is fixedly connected to the side of the vacuum shell 2. The air intake assembly 4 includes an air intake pipe 401. One end of the air intake pipe 401 is fixedly connected to a gas distribution pipe 402. A gas delivery pipe 403 is fixedly connected to the side of the gas distribution pipe 402. One end of the gas delivery pipe 403 is fixedly connected to a gas distribution box 404. A one-way gas pipe 405 is fixedly connected to the lower surface of the gas distribution box 404. One end of the one-way gas pipe 405 extends into the inner side of the kiln body 1.

[0024] An air control assembly 5 is fixedly connected to the side of the air intake pipe 401. The air control assembly 5 includes an air control motor 501. An air control plate 502 is fixedly connected to the output end of the air control motor 501, and the air control plate 502 is located inside the air intake pipe 401.

[0025] An exhaust assembly 6 is fixedly connected to the upper surface of the kiln body 1. The exhaust assembly 6 includes an exhaust pipe 601, an electric telescopic rod 602 is fixedly connected to the inner side of the exhaust pipe 601, and a blocking post 603 is fixedly connected to one end of the electric telescopic rod 602. An outlet pipe 604 is opened on the side of the exhaust pipe 601. In the kiln atmosphere control system, after the gas is introduced from the inlet pipe 401, it first reaches the precision diversion structure of the gas distribution pipe 402. The gas distribution pipe 402 adopts a symmetrical dual-channel design. The internal guide plate is optimized by fluid dynamics simulation, which can evenly divide the gas into two parallel upper and lower paths. The diverted gas flows smoothly along the polished inner wall of the gas delivery pipe 403, and then enters the gas distribution box 404 to divide the gas into six independent gas paths. Each gas path is equipped with a one-way gas pipe 405 and a high-sensitivity check valve. The six gas flows are finally injected into the kiln body 1 at a precise angle and flow rate to achieve uniform atmosphere diffusion. When the system receives a control command, the gas control motor 501 drives the gas control plate 502 to rotate. By changing the overlapping area of ​​the vent and the inlet channel, stepless adjustment of the gas flow rate from 0-100% is achieved. This, combined with the mass flow meter installed in the gas distribution box 404, forms a closed-loop control with an adjustment accuracy of ±1%. Upon receiving the command, the electric telescopic rod 602 quickly retracts, precisely adjusting the opening area of ​​the outlet pipe 604 to control the exhaust gas discharge rate. This continues until the gas concentration inside the furnace returns to the set value, ensuring the heat treatment process operates continuously in a stable atmosphere.

[0026] like Figure 1 and Figure 6 As shown, a waste heat utilization component 7 is fixedly connected to the side of the kiln body 1. The waste heat utilization component 7 includes a waste heat flow pipe 701. One end of the waste heat flow pipe 701 is fixedly connected to a heat exchanger 702. A flow pipe 703 is fixedly connected to the side of the heat exchanger 702. A waste heat carrier circulation pump 704 is fixedly connected to one end of the flow pipe 703. An exchange pipe 705 is fixedly connected to the output end of the waste heat carrier circulation pump 704. In the waste heat recovery system, the heat exchanger 702 serves as the core hub. When the high-temperature exhaust gas discharged from the kiln passes through one side of the heat exchanger 702, the heat energy it carries is quickly transferred to the waste heat carrier on the other side through the corrugated plates. The waste heat carrier, after absorbing heat, is transported along the double-layer insulated flow pipe 703. The waste heat carrier circulation pump 704 connected to the end of the flow pipe 703 is a variable frequency magnetic drive pump, which can automatically adjust the speed according to the actual heat load requirements. The waste heat carrier circulation pump 704 delivers the heated waste heat carrier to the heat-using end, such as a heating system, a workpiece preheating platform, or a process water heating device, to achieve efficient recycling of heat.

[0027] In use, in the kiln atmosphere control system, after the gas is introduced through the inlet pipe 401, it first reaches the precision diversion structure of the gas distribution pipe 402. The gas distribution pipe 402 adopts a symmetrical dual-channel design, and the internal guide plate is optimized through fluid dynamics simulation to evenly divide the gas into upper and lower parallel paths. The diverted gas flows smoothly along the polished inner wall of the gas delivery pipe 403, and then enters the gas distribution box 404 to evenly divide the gas into six independent gas paths. Each gas path is equipped with a one-way gas pipe 405 and a high-sensitivity check valve. The six gas flows are finally injected into the kiln body 1 at a precise angle and flow rate to achieve uniform atmosphere diffusion. When the system receives a control command, the gas control motor 501 drives the gas control plate 502 to rotate. By changing the overlapping area of ​​the vent and the inlet channel, the gas flow rate can be steplessly adjusted from 0-100%. Combined with the mass flow meter installed in the gas distribution box 404, a closed-loop control is formed, with an adjustment accuracy of ±1%. Upon receiving the command, the electric telescopic rod 602 quickly retracts, precisely adjusting the opening area of ​​the exhaust pipe 604 to control the exhaust gas discharge rate. This continues until the gas concentration inside the furnace returns to the set value, ensuring the heat treatment process operates continuously in a stable atmosphere. In the kiln intelligent monitoring system, the temperature sensor rod 304, with its high-frequency sampling rate of 20 times per second, accurately captures changes in the temperature field inside the furnace and can provide real-time, accurate temperature data. The atmosphere concentration monitoring probe 305, equipped with laser absorption spectroscopy technology, can perform online detection of key gas concentrations such as O2, CO, and H2 with a detection accuracy at the ppm level, effectively avoiding process deviations caused by uneven atmosphere. The miniature pressure sensor 306 senses local micro-pressure changes with ultra-high precision. The infrared thermal imager 307, equipped with a dual-band detection lens, scans the workpiece surface in real time with temperature resolution, not only capturing the heating state but also intelligently identifying surface defects and areas of abnormal temperature. All monitoring data is transmitted to the central control unit via double-shielded high-temperature resistant cables. After data processing, it is simultaneously displayed on a 15-inch high-definition touch screen 301, supporting the display of temperature cloud maps, concentration curves, pressure vector maps, and thermal imaging images. When any monitored parameter exceeds the preset threshold, the warning light 302 immediately flashes red at a high frequency to issue a visual warning, and at the same time, the high-decibel sound 303 simultaneously activates a graded alarm. The system will also automatically generate process adjustment suggestions and trigger safety interlock procedures, realizing closed-loop control of the entire process from data acquisition and intelligent analysis to emergency response, comprehensively ensuring the safe operation of the kiln and the stability of the heat treatment process. In the waste heat recovery system, the heat exchanger 702 serves as the core hub. When the high-temperature exhaust gas from the kiln passes through one side of the heat exchanger 702, the heat energy it carries is quickly transferred through the corrugated plates to the waste heat carrier on the other side. The waste heat carrier, after absorbing heat, is transported along the double-insulated flow pipe 703. The waste heat carrier circulation pump 704 connected to the end of the flow pipe 703 is a variable frequency magnetic drive pump, which can automatically adjust the speed according to the actual heat load requirements.The waste heat carrier circulation pump 704 delivers the heated waste heat carrier to the heat-using end, such as a heating system, a workpiece preheating platform, or a process water heating device, to achieve efficient recycling of heat.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A structure for an atmosphere-protected furnace for hanging shaft heat treatment, characterized in that: The system includes a kiln body (1), a vacuum shell (2) fixedly connected to the outer side of the kiln body (1), a monitoring component (3) fixedly connected to the side of the vacuum shell (2), the monitoring component (3) including a touch screen (301), a temperature sensing rod (304) electrically connected to the side of the touch screen (301), and the temperature sensing rod (304) extending into the inner side of the kiln body (1), and an atmosphere concentration monitoring probe fixedly connected to the inner side of the kiln body (1). (305), and the atmosphere concentration monitoring probe (305) is electrically connected to the side of the touch screen (301). A miniature pressure sensor (306) is fixedly connected to the inside of the kiln body (1), and the miniature pressure sensor (306) is electrically connected to the side of the touch screen (301). An infrared thermal imager (307) is fixedly connected to the inside of the kiln body (1), and the infrared thermal imager (307) is electrically connected to the side of the touch screen (301).

2. The atmosphere protection furnace structure for hanging shaft heat treatment according to claim 1, characterized in that: A warning light (302) is fixedly connected to the side of the vacuum housing (2), and the warning light (302) is electrically connected to the touch screen (301). A speaker (303) is fixedly connected to the side of the vacuum housing (2), and the speaker (303) is electrically connected to the touch screen (301).

3. The atmosphere protection furnace structure for hanging shaft heat treatment according to claim 2, characterized in that: An air intake assembly (4) is fixedly connected to the side of the vacuum shell (2). The air intake assembly (4) includes an air intake pipe (401). One end of the air intake pipe (401) is fixedly connected to a gas distribution pipe (402). A gas delivery pipe (403) is fixedly connected to the side of the gas distribution pipe (402). One end of the gas delivery pipe (403) is fixedly connected to a gas distribution box (404). A one-way gas pipe (405) is fixedly connected to the lower surface of the gas distribution box (404). One end of the one-way gas pipe (405) extends into the inner side of the kiln body (1).

4. The atmosphere protection furnace structure for hanging shaft heat treatment according to claim 3, characterized in that: An air control assembly (5) is fixedly connected to the side of the air intake pipe (401). The air control assembly (5) includes an air control motor (501). An air control plate (502) is fixedly connected to the output end of the air control motor (501), and the air control plate (502) is located inside the air intake pipe (401).

5. The atmosphere protection furnace structure for hanging shaft heat treatment according to claim 3, characterized in that: An exhaust assembly (6) is fixedly connected to the upper surface of the kiln body (1). The exhaust assembly (6) includes an exhaust pipe (601). An electric telescopic rod (602) is fixedly connected to the inner side of the exhaust pipe (601). A blocking post (603) is fixedly connected to one end of the electric telescopic rod (602). An exhaust pipe (604) is provided on the side of the exhaust pipe (601).

6. The atmosphere protection furnace structure for hanging shaft heat treatment according to claim 5, characterized in that: A waste heat utilization component (7) is fixedly connected to the side of the kiln body (1). The waste heat utilization component (7) includes a waste heat gas pipe (701). A heat exchanger (702) is fixedly connected to one end of the waste heat gas pipe (701). A flow pipe (703) is fixedly connected to the side of the heat exchanger (702). A waste heat carrier circulation pump (704) is fixedly connected to one end of the flow pipe (703). An exchange pipe (705) is fixedly connected to the output end of the waste heat carrier circulation pump (704).

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