Atmosphere heat treatment equipment

Abstract

The utility model discloses atmosphere heat treatment equipment which is characterized in that after a target sample to be subjected to heat treatment is placed on a feeding transmission device, the feeding transmission device conveys the target sample into a temperature control furnace body; the temperature control system and the atmosphere control system are respectively used for adjusting the temperature and gas components in the temperature control furnace body, so that a target sample is subjected to sufficient thermal reaction in a target gas environment; and then the target sample is taken out by the discharging transmission device. The atmosphere heat treatment equipment provided by the utility model is simple in structure, can quickly and conveniently perform continuous vacuum or atmosphere heat treatment on target samples such as a powder catalyst, is suitable for mass production, can be effectively connected with front and rear end procedures, and is convenient to realize production automation. According to the box-type furnace body, manual feeding and discharging is omitted, the frequent vacuumizing or inflating and deflating process of a traditional box-type furnace body during feeding and discharging is avoided, meanwhile, the cooling time is shortened, and the feeding and discharging time is more flexible.

Description

Technical Field

[0001] The present application relates to the field of industrial production technology, and in particular to an atmosphere heat treatment device. Background Art

[0002] In the current industrial production environment, the heat treatment process of powdered catalysts waiting for heat treatment samples is a crucial link. However, traditional heat treatment methods, such as using box furnaces or tube furnaces, although they can meet the needs of heat treatment to a certain extent, have many shortcomings in actual operation. Especially when it is necessary to provide a specific atmosphere environment for the target sample, the existing technology usually requires frequent vacuuming or filling and deflation operations during the loading and unloading process. This step is currently mainly completed manually, which is not only cumbersome to operate, but also consumes a lot of time and labor costs.

[0003] More importantly, this manual operation mode is difficult to effectively connect with modern automated production lines. In the pursuit of high-efficiency, high-quality automated production, frequent manual intervention undoubtedly breaks the continuity of the production process and reduces overall production efficiency. In addition, there is a certain degree of uncertainty in manual operation, which may lead to inaccurate atmosphere control, thus affecting the final quality of the product.

[0004] Therefore, the existing heat treatment technology has shown its limitations in practical applications, and there is an urgent need for a new heat treatment technology that can be closely integrated with the automated production line, reduce manual intervention, and improve production efficiency and product quality. Utility Model Content

[0005] The purpose of the present application is to provide an atmosphere heat treatment device which can improve the above-mentioned problems.

[0006] The embodiment of the present application is implemented as follows:

[0007] The present application provides an atmosphere heat treatment device, which includes a controller and a feeding transmission device electrically connected to the controller, a temperature-controlled furnace body, and a discharging transmission device;

[0008] The feeding transmission device is used to convey the target sample to be heat-treated into the temperature-controlled furnace under the control of the controller;

[0009] The temperature-controlled furnace body comprises a tunnel furnace body, a temperature control system, an atmosphere control system and a working transmission device; the temperature control system is used to adjust the temperature of the tunnel furnace body under the control of the controller; the atmosphere control system is used to adjust the gas composition in the tunnel furnace body under the control of the controller; the working transmission device is arranged in the tunnel furnace body, and is used to receive the target sample from the feeding transmission device, and transmit the target sample to the discharging transmission device;

[0010] The discharging transmission device is used to take the target sample out of the temperature-controlled furnace under the control of the controller.

[0011] It can be understood that the present application discloses an atmosphere heat treatment equipment, after the target sample to be heat treated is placed in the feed transmission device, the feed transmission device transmits the target sample to the temperature-controlled furnace body; the temperature and gas composition in the temperature-controlled furnace body are adjusted by the temperature control system and the atmosphere control system respectively, so that the target sample can fully react thermally in the target gas environment; then the discharge transmission device takes out the target sample. The atmosphere heat treatment equipment provided by the present application has a simple structure, can quickly and conveniently perform continuous vacuum or atmosphere heat treatment on target samples such as powder catalysts, and is suitable for mass production. It can be effectively connected with the front and back end processes to facilitate the realization of production automation. It not only eliminates the labor of loading and unloading, but also avoids the frequent vacuuming or filling and deflation process of the traditional box-type furnace body during loading and unloading, but also reduces the cooling time, and the loading and unloading time is more flexible.

[0012] In an optional embodiment of the present application, a first sealing door is provided at one end of the tunnel furnace body facing the feeding transmission device, and a second sealing door is provided at one end of the tunnel furnace body facing the discharging transmission device; the first sealing door and the second sealing door are both electrically connected to the controller, and are used to be opened or closed under the control of the controller. It can be understood that the main function of the first sealing door and the second sealing door is to isolate the external environment to ensure the internal atmosphere.

[0013] In an optional embodiment of the present application, a third sealed door and a fourth sealed door are further provided in the tunnel furnace body, and the third sealed door and the fourth sealed door divide the tunnel furnace body into a first buffer zone, a working zone, and a second buffer zone in sequence. It can be understood that the main function of the third sealed door and the fourth sealed door is also isolation, so as to ensure the temperature and atmosphere environment of the working zone.

[0014] Since the temperature near the working area is often higher, in an optional embodiment of the present application, the above-mentioned atmosphere heat treatment equipment includes at least one of the following:

[0015] The thermal insulation performance of the materials of the third sealed door and the fourth sealed door is better than that of the materials of the first sealed door and the second sealed door;

[0016] The third sealing door and the fourth sealing door are made of at least one of the following materials: metal, ceramic; the first sealing door and the second sealing door are made of at least one of the following materials: metal, ceramic and highly elastic organic material.

[0017] In an optional embodiment of the present application, the above-mentioned atmosphere heat treatment equipment includes at least one of the following:

[0018] After the temperature control system is started, the central temperature of the working area is higher than the temperatures at both ends of the working area;

[0019] The temperature control system uniformly controls the temperatures of the first buffer zone, the working zone, and the second buffer zone;

[0020] The temperature control system independently controls the temperatures of the first buffer zone, the working zone, and the second buffer zone;

[0021] The temperature control system adopts any one of the following temperature control methods: resistance temperature control method, medium temperature control method, and electromagnetic temperature control method.

[0022] For example, when temperature control is performed by using a resistance temperature control method, the heating rods may be distributed in different densities, so that after the temperature control system is started, the central temperature of the working area is higher than the temperatures at both ends of the working area.

[0023] In an optional embodiment of the present application, the working transmission device includes a first working transmission device arranged in the first buffer zone, a second working transmission device arranged in the working area, and a third working transmission device arranged in the second buffer zone; the second working transmission device includes a first axle wheel, a second axle wheel, and a working conveyor belt mounted on the first axle wheel and the second axle wheel, at least one of the first axle wheel and the second axle wheel is a powered axle wheel, which is used to rotate under the control of the controller to drive the working conveyor belt to move.

[0024] In an optional embodiment of the present application, the first working transmission device and the third working transmission device are symmetrically arranged. Here, the first working transmission device is taken as an example for description, and the first working transmission device includes a working power assembly, a working transmission shaft, a working transverse driving device, and a buffer transmission belt sleeved on the working power assembly and the working transmission shaft; the working power assembly is used to drive the target sample on the buffer transmission belt to move toward or away from the working area under the control of the controller; the working transverse driving device is used to drive a working transmission shaft closest to the working area to extend into or out of the working area under the control of the controller.

[0025] In an optional embodiment of the present application, the atmosphere control system includes a gas source, an air pump and an air exhaust pump; the gas source is connected to the air pump, the air outlet of the air pump is connected to at least one gas path interface on the tunnel furnace body, and the air pump is used to fill the target gas into the tunnel furnace body under the control of the controller; the air exhaust pump is connected to at least one other gas path interface on the tunnel furnace body, and is used to extract non-target gas from the tunnel furnace body.

[0026] In an optional embodiment of the present application, the feed transmission device and the discharging transmission device are respectively arranged at the two ends of the tunnel furnace body, and the feed transmission device and the discharging transmission device are symmetrically arranged. Here, the feed transmission device is taken as an example for explanation, and the feed transmission device includes a feed power assembly, a feed transmission shaft, a feed transverse drive device, and a feed transmission belt sleeved on the feed power assembly and the feed transmission shaft; the feed power assembly is used to drive the target sample on the feed transmission belt to move toward or away from the tunnel furnace body under the control of the controller; the feed transverse drive device is used to drive a feed transmission shaft closest to the tunnel furnace body to extend into or out of the tunnel furnace body under the control of the controller.

[0027] Beneficial effects:

[0028] The present application discloses an atmosphere heat treatment equipment, after the target sample to be heat treated is placed in the feed transmission device, the feed transmission device transmits the target sample to the temperature-controlled furnace body; the temperature and gas composition in the temperature-controlled furnace body are adjusted by the temperature control system and the atmosphere control system respectively, so that the target sample can fully react thermally in the target gas environment; then the discharge transmission device takes out the target sample. The atmosphere heat treatment equipment provided by the present application has a simple structure, can quickly and conveniently perform continuous vacuum or atmosphere heat treatment on target samples such as powder catalysts, and is suitable for mass production. It can be effectively connected with the front-end and back-end processes to facilitate the realization of production automation. It not only eliminates the need for manual loading and unloading, but also avoids the frequent vacuuming or filling and deflation process of the traditional box-type furnace body during loading and unloading, while also reducing the cooling time, and the loading and unloading time is more flexible.

[0029] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, optional embodiments are specifically listed below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of an atmosphere heat treatment equipment provided by the present application;

[0032] Figure 2 yes Figure 1 A structural schematic diagram of a temperature-controlled furnace body shown;

[0033] Figure 3 yes Figure 1 Another structural schematic diagram of the temperature controlled furnace body shown. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] like Figures 1 to 3 As shown, the present application provides an atmosphere heat treatment device, including a controller (not shown in the figure) and a feed transmission device 100, a temperature-controlled furnace body 200 and a discharge transmission device 300 electrically connected to the controller.

[0036] The feeding transmission device 100 is used to transfer the target sample to be heat-treated to the temperature-controlled furnace body 200 under the control of the controller. Figure 1 As shown, the feed transmission device 100 includes a feed power assembly, a feed transmission shaft 11, a feed transverse drive device (not shown in the figure), and a feed transmission belt 12 sleeved on the feed power assembly and the feed transmission shaft 11. The feed power assembly is used to drive the target sample on the feed transmission belt 12 to move toward or away from the tunnel furnace body 21 under the control of the controller. Figure 1 As shown, the feeding power assembly includes a symmetrically arranged first feeding pulley 131 and a second feeding pulley 132, a symmetrically arranged third feeding pulley 133 and a fourth feeding pulley 134, and a fifth feeding pulley 135, wherein the third feeding pulley 133 and the fourth feeding pulley 134 are arranged between the first feeding pulley 131 and the second feeding pulley 132, and the fifth feeding pulley 135 is arranged between the third feeding pulley 133 and the fourth feeding pulley 134; the third feeding pulley 133 and the fourth feeding pulley 134 are arranged on a first horizontal line, the first feeding pulley 131 and the second feeding pulley 132 are arranged on a second horizontal line lower than the first horizontal line, and the fifth feeding pulley 135 is driven to reciprocate in a vertical direction perpendicular to the horizontal line to achieve the relaxation or contraction of the feeding transmission belt 12. The feeding transverse driving device is used to drive a feeding transmission shaft 11 closest to the tunnel furnace body 21 to extend into or withdraw from the tunnel furnace body 21 under the control of the controller.

[0037] The temperature-controlled furnace body 200 includes a tunnel furnace body 21, a temperature control system (not shown in the figure), an atmosphere control system (not shown in the figure) and a working transmission device 20; the temperature control system is used to adjust the temperature inside the tunnel furnace body 21 under the control of a controller; the atmosphere control system is used to adjust the gas composition inside the tunnel furnace body 21 under the control of a controller; the working transmission device 20 is arranged in the tunnel furnace body 21, and is used to receive the target sample from the feeding transmission device 100, and transmit the target sample to the discharging transmission device 300.

[0038] The material discharging transmission device 300 is used to take out the target sample from the temperature-controlled furnace body 200 under the control of the controller. Figure 1 As shown, the feed transmission device 100 and the discharging transmission device 300 are respectively arranged at the two ends of the tunnel furnace body 21, and the feed transmission device 100 and the discharging transmission device 300 are symmetrically arranged. The structure of the discharging transmission device 300 is similar to that of the feed transmission device 100, which will not be repeated here.

[0039] It can be understood that the present application discloses an atmosphere heat treatment equipment. After the target sample to be heat treated is placed in the feed transmission device 100, the feed transmission device 100 transmits the target sample to the temperature-controlled furnace body 200; the temperature control system and the atmosphere control system respectively adjust the temperature and gas composition in the temperature-controlled furnace body 200, so that the target sample can fully react thermally under the target gas environment; then the discharge transmission device 300 takes out the target sample. The atmosphere heat treatment equipment provided by the present application has a simple structure, can quickly and conveniently perform continuous vacuum or atmosphere heat treatment on target samples such as powder catalysts, and is suitable for mass production. It can be effectively connected with the front and back end processes to facilitate the realization of production automation. It not only eliminates the labor of loading and unloading, but also avoids the frequent vacuuming or filling and deflation process of the traditional box-type furnace body during loading and unloading. At the same time, it also reduces the cooling time, and the loading and unloading time is also more flexible.

[0040] In an optional embodiment of the present application, Figures 1 to 3 As shown, a first sealing door 221 is provided at one end of the tunnel furnace body 21 facing the feeding transmission device 100, and a second sealing door 222 is provided at one end of the tunnel furnace body 21 facing the discharging transmission device 300; the first sealing door 221 and the second sealing door 222 are both electrically connected to the controller, and are used to be opened or closed under the control of the controller. It can be understood that the main function of the first sealing door 221 and the second sealing door 222 is to isolate the external environment to ensure the internal atmosphere.

[0041] In an optional embodiment of the present application, Figure 3As shown, a third sealing door 223 and a fourth sealing door 224 are also provided in the tunnel furnace body 21, and the third sealing door 223 and the fourth sealing door 224 sequentially separate the tunnel furnace body 21 into a first buffer zone 23, a working zone 24 and a second buffer zone 25. It can be understood that the main function of the third sealing door 223 and the fourth sealing door 224 is also isolation, so as to ensure the temperature and atmosphere environment of the working zone 24.

[0042] Since the temperature near the working area 24 is often higher, in an optional embodiment of the present application, the atmosphere heat treatment equipment includes at least one of the following:

[0043] The thermal insulation performance of the materials of the third sealing door 223 and the fourth sealing door 224 is better than that of the materials of the first sealing door 221 and the second sealing door 222;

[0044] The third sealing door 223 and the fourth sealing door 224 are made of at least one of the following materials: metal, ceramic; the first sealing door 221 and the second sealing door 222 are made of at least one of the following materials: metal, ceramic and highly elastic organic material.

[0045] In an optional embodiment of the present application, the above-mentioned atmosphere heat treatment equipment includes at least one of the following:

[0046] After the temperature control system is started, the central temperature of the working area 24 is higher than the temperatures at both ends of the working area 24;

[0047] The temperature control system uniformly controls the temperatures of the first buffer zone 23, the working zone 24 and the second buffer zone 25;

[0048] The temperature control system independently controls the temperatures of the first buffer zone 23, the working zone 24 and the second buffer zone 25;

[0049] The temperature control system adopts any of the following temperature control methods: resistance temperature control method, medium temperature control method, electromagnetic temperature control method. Among them, the medium in the medium temperature control method can be oil, water and other materials. Figures 1 to 3 The temperature control system interface 27 shown can be arranged on each surface of the tunnel furnace body 21. For example, when the temperature control is performed by using the resistance temperature control method, the heating rods can be densely distributed differently, so that after the temperature control system is started, the central temperature of the working area 24 is higher than the temperature at both ends of the working area 24.

[0050] In an optional embodiment of the present application, the working transmission device 20 includes a first working transmission device 201 disposed in the first buffer zone 23, a second working transmission device 202 disposed in the working zone 24, and a third working transmission device 203 disposed in the second buffer zone 25. Figure 3As shown, the second working transmission device 202 includes a first shaft wheel 241, a second shaft wheel 242, and a working conveyor belt 243 mounted on the first shaft wheel 241 and the second shaft wheel 242. At least one of the first shaft wheel 241 and the second shaft wheel 242 is a power shaft wheel, which is used to rotate under the control of the controller to drive the working conveyor belt 243 to move.

[0051] In an optional embodiment of the present application, the first working transmission device 201 and the third working transmission device 203 are symmetrically arranged. Here, the first working transmission device 201 is taken as an example for description. Figure 3 As shown, the first working transmission device 201 includes a working power assembly, a working transmission shaft 231, a working transverse driving device, and a buffer transmission belt 232 sleeved on the working power assembly and the working transmission shaft 231. The working power assembly is used to drive the target sample on the buffer transmission belt 232 to move toward or away from the working area 24 under the control of the controller. Figure 3 As shown, the working power assembly includes a symmetrically arranged first buffer pulley 233 and a second buffer pulley 234, a symmetrically arranged third buffer pulley 235 and a fourth buffer pulley 236, and a fifth buffer pulley 237, wherein the third buffer pulley 235 and the fourth buffer pulley 236 are arranged between the first buffer pulley 233 and the second buffer pulley 234, and the fifth buffer pulley 237 is arranged between the third buffer pulley 235 and the fourth buffer pulley 236; the third buffer pulley 235 and the fourth buffer pulley 236 are arranged on the third horizontal line, the first buffer pulley 233 and the second buffer pulley 234 are arranged on the fourth horizontal line lower than the third horizontal line, and the fifth buffer pulley 237 is driven to reciprocate in a vertical direction perpendicular to the horizontal line to achieve the relaxation or contraction of the buffer transmission belt 232. The working transverse drive device is used to drive a working transmission shaft 231 closest to the working area 24 to extend into or out of the working area 24 under the control of the controller.

[0052] In an optional embodiment of the present application, the atmosphere control system includes a gas source, an air pump and an air extraction pump; the gas source is connected to the air pump, and the air outlet of the air pump is connected to at least one gas path interface 26 on the tunnel furnace body 21, such as Figures 1 to 3 As shown, the charging pump is used to charge the target gas into the tunnel furnace body 21 under the control of the controller; the exhaust pump is connected to at least one other gas path interface 26 on the tunnel furnace body 21 to extract non-target gas in the tunnel furnace body 21.

[0053] In the embodiments of the present application, the controller may be a central processing unit (CPU), and the controller may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0054] The expressions "first", "second", "the first" or "the second" used in various embodiments of the present disclosure may modify various components regardless of order and / or importance, but these expressions do not limit the corresponding components. The above expressions are only configured for the purpose of distinguishing an element from other elements. For example, a first user device and a second user device represent different user devices, although both are user devices. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0055] When one element (e.g., a first element) is referred to as being "(operably or communicatively) coupled" or "(operably or communicatively) coupled to" or "connected to" another element (e.g., a second element), it is understood that the one element is directly connected to the other element or the one element is indirectly connected to the other element via yet another element (e.g., a third element). Conversely, it is understood that when an element (e.g., a first element) is referred to as being "directly connected" or "directly coupled" to another element (the second element), no element (e.g., a third element) is interposed between the two.

[0056] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0057] The above description is only an optional embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

[0058] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0059] The above description is only an optional embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

[0060] The above description is only an optional embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An atmosphere heat treatment equipment, characterized in that: It includes a controller and a feeding transmission device electrically connected to the controller, a temperature-controlled furnace body and a discharging transmission device; The feeding transmission device is used to convey the target sample to be heat-treated into the temperature-controlled furnace under the control of the controller; The temperature-controlled furnace body comprises a tunnel furnace body, a temperature control system, an atmosphere control system and a working transmission device; the temperature control system is used to adjust the temperature of the tunnel furnace body under the control of the controller; the atmosphere control system is used to adjust the gas composition in the tunnel furnace body under the control of the controller; the working transmission device is arranged in the tunnel furnace body, and is used to receive the target sample from the feeding transmission device, and transmit the target sample to the discharging transmission device; The discharging transmission device is used to take the target sample out of the temperature-controlled furnace under the control of the controller.

2. The atmosphere heat treatment equipment according to claim 1, characterized in that: A first sealing door is provided at one end of the tunnel furnace body facing the feeding transmission device, and a second sealing door is provided at one end of the tunnel furnace body facing the discharging transmission device; The first sealing door and the second sealing door are both electrically connected to the controller and are used to be opened or closed under the control of the controller.

3. The atmosphere heat treatment equipment according to claim 2, characterized in that: A third sealing door and a fourth sealing door are also provided in the tunnel furnace body, and the third sealing door and the fourth sealing door divide the tunnel furnace body into a first buffer zone, a working zone and a second buffer zone in sequence.

4. The atmosphere heat treatment equipment according to claim 3, characterized in that: Include at least one of the following: After the temperature control system is started, the central temperature of the working area is higher than the temperatures at both ends of the working area; The temperature control system uniformly controls the temperatures of the first buffer zone, the working zone, and the second buffer zone; The temperature control system independently controls the temperatures of the first buffer zone, the working zone, and the second buffer zone; The temperature control system adopts any one of the following temperature control methods: resistance temperature control method, medium temperature control method, and electromagnetic temperature control method.

5. The atmosphere heat treatment equipment according to claim 3, characterized in that: Include at least one of the following: The thermal insulation performance of the materials of the third sealed door and the fourth sealed door is better than that of the materials of the first sealed door and the second sealed door; The third sealing door and the fourth sealing door are made of at least one of the following materials: metal, ceramic; the first sealing door and the second sealing door are made of at least one of the following materials: metal, ceramic and highly elastic organic material.

6. The atmosphere heat treatment equipment according to claim 3, characterized in that: The working transmission device comprises a first working transmission device arranged in the first buffer zone, a second working transmission device arranged in the working zone, and a third working transmission device arranged in the second buffer zone; The second working transmission device includes a first shaft wheel, a second shaft wheel, and a working conveyor belt mounted on the first shaft wheel and the second shaft wheel. At least one of the first shaft wheel and the second shaft wheel is a power shaft wheel, which is used to rotate under the control of the controller to drive the working conveyor belt to move.

7. The atmosphere heat treatment equipment according to claim 6, characterized in that: The first working transmission device and the third working transmission device are symmetrically arranged; The first working transmission device includes a working power assembly, a working transmission shaft, a working transverse drive device and a buffer transmission belt sleeved on the working power assembly and the working transmission shaft; the working power assembly is used to drive the target sample on the buffer transmission belt to move toward or away from the working area under the control of the controller; the working transverse drive device is used to drive a working transmission shaft closest to the working area to extend into or exit the working area under the control of the controller.

8. The atmosphere heat treatment equipment according to any one of claims 1 to 7, characterized in that: The atmosphere control system comprises a gas source, an air pump and an air extraction pump; the gas source is connected to the air pump, the air outlet of the air pump is connected to at least one air path interface on the tunnel furnace body, and the air pump is used to charge the target gas into the tunnel furnace body under the control of the controller; The vacuum pump is in communication with at least one other gas path interface on the tunnel furnace body, and is used to extract non-target gas from the tunnel furnace body.

9. The atmosphere heat treatment equipment according to any one of claims 1 to 7, characterized in that: The feed transmission device includes a feed power assembly, a feed transmission shaft, a feed transverse drive device and a feed transmission belt sleeved on the feed power assembly and the feed transmission shaft; the feed power assembly is used to drive the target sample on the feed transmission belt to move toward or away from the tunnel furnace body under the control of the controller; the feed transverse drive device is used to drive a feed transmission shaft closest to the tunnel furnace body to extend into or exit the tunnel furnace body under the control of the controller.

10. The atmosphere heat treatment equipment according to claim 9, characterized in that: The feeding transmission device and the discharging transmission device are respectively arranged at two ends of the tunnel furnace body, and the feeding transmission device and the discharging transmission device are symmetrically arranged.

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