CN212316186U - Heat treatment heating furnace - Google Patents

Abstract

The application provides a heat treatment heating furnace, and relates to the field of heating furnaces. The heat treatment heating furnace comprises a heating furnace body and a heating device, wherein the heating furnace body comprises a furnace body and a furnace chamber component for placing a product to be heat treated, the furnace chamber component is arranged in the furnace body, and a wind guide cavity is formed between the furnace chamber component and the furnace body; the heating device comprises a first air supply mechanism and a heating mechanism, the first air supply mechanism is arranged at one end of the furnace body, and the heating mechanism is arranged in the air guide cavity; the first air supply mechanism, the furnace chamber component and the air guide chamber form a heat circulation loop. The application provides a heat treatment heating furnace is through the gas circulation in the first air supply mechanism drive furnace body, and the gaseous heat with heating device of circulation carries out the heat exchange with the product of treating heat treatment in the furnace chamber subassembly again in taking into the furnace chamber subassembly, realizes the rapid heating up of product, greatly shortens heating time, reduces the heating energy consumption, improves machining efficiency.

Description

Heat treatment heating furnace

Technical Field

The application relates to the field of heating furnaces, in particular to a heat treatment heating furnace.

Background

At present, the annealing process of copper materials mostly adopts a closed tank heating technology, namely products of the copper materials are put into the closed tank and heated externally. And then, lifting the closed tank out and putting the closed tank into a water tank for cooling.

However, when the product is heated, the closed tank is heated first, and then the gas in the closed tank is subjected to circular exchange heat transfer to the product, so that the heating time is long, and the heating energy consumption is high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the application provides a heat treatment heating furnace and a heat treatment method, and aims to solve the problems that in the prior art, a closed tank is adopted for heating, the heating time is long, and the heating energy consumption is high.

In order to achieve the above object, the present application provides a heat treatment furnace, which includes a furnace body and a heating device;

the heating furnace body comprises a furnace body and a furnace chamber component for placing a product to be heat-treated, the furnace chamber component is arranged in the furnace body, and an air guide cavity is formed between the furnace chamber component and the furnace body;

the heating device comprises a first air supply mechanism and a heating mechanism, the first air supply mechanism is arranged at one end of the furnace body, and the heating mechanism is arranged in the air guide cavity;

the first air supply mechanism, the furnace chamber assembly and the air guide chamber form a heat circulation loop.

In a possible embodiment, the heating means comprise a predetermined number of radiant tubes distributed along the inner wall of the furnace body.

In one possible embodiment, the oven cavity assembly includes an air guide duct, an air guide plate and an air guide seat;

the air duct can contain a product to be thermally treated;

the air deflector is arranged at one end of the air duct and is positioned between the air duct and the first air supply mechanism;

the air guide seat is arranged at one end, far away from the air guide plate, of the air guide cylinder, and the air guide seat is located between the furnace body and the air guide cylinder.

In a possible implementation manner, the heat treatment heating furnace further includes a cooling device, the cooling device includes a second air supply mechanism and a heat exchanger, and the second air supply mechanism, the heat exchanger and the furnace chamber assembly are sequentially connected to form a cooling circulation loop.

In a possible embodiment, the second blower is connected to the air guide seat through a cooling pipeline, and the heat exchanger is connected to the furnace body through a cooling pipeline.

In a possible embodiment, a valve is arranged between the second blower and the furnace body and/or between the heat exchanger and the furnace body.

In a possible embodiment, the heat exchanger comprises an exchanger of coil or plate construction.

In a possible implementation manner, the heating furnace body further comprises a furnace cover, the furnace cover covers one end of the furnace body, and the first air supply mechanism is arranged on the furnace cover.

In a possible implementation manner, the heating furnace body further comprises a lifting mechanism, the lifting mechanism comprises a driving assembly and an arm support, the driving assembly is arranged on the furnace body, one end of the arm support is connected with the output end of the driving assembly, and the other end of the arm support is connected with the furnace cover.

In one possible embodiment, the first air supply mechanism includes a circulation fan.

In another aspect, the present application also provides a heat treatment method, including a tempering step or an annealing step, wherein the tempering step or the annealing step employs the heat treatment furnace provided above.

Compared with the prior art, the beneficial effects of the application are that:

the application provides a heat treatment heating furnace and a heat treatment method, wherein the heat treatment heating furnace comprises a heating furnace body and a heating device; the heating furnace body comprises a furnace body and a furnace chamber component for placing a product to be heat-treated, the furnace chamber component is arranged in the furnace body, and a wind guide cavity is formed between the furnace chamber component and the furnace body; the heating device comprises a first air supply mechanism and a heating mechanism, the first air supply mechanism is arranged at one end of the furnace body, and the heating mechanism is arranged in the air guide cavity; the first air supply mechanism, the furnace chamber component and the air guide chamber form a heat circulation loop. The application provides a heat treatment heating furnace is through the gas circulation in the first air supply mechanism drive furnace body, and the gaseous heat with heating device of circulation carries out the heat exchange with the product of treating heat treatment in the furnace chamber subassembly again in taking into the furnace chamber subassembly, realizes the rapid heating up of product, greatly shortens heating time, reduces the heating energy consumption, improves machining efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural view of a heat treatment furnace according to an embodiment of the present disclosure;

FIG. 2 shows an enlarged partial schematic view at A in FIG. 1;

FIG. 3 shows an enlarged partial schematic view at B in FIG. 1;

FIG. 4 is a schematic view illustrating the flow direction of the gas flow during heating of the heat treatment furnace according to the embodiment of the present application;

fig. 5 is a schematic view illustrating the flow direction of the gas flow during cooling of the heat treatment furnace according to the embodiment of the present application.

Description of the main element symbols:

100-heating furnace body; 1000-a wind guide cavity; 110-a furnace body; 120-a furnace chamber component; 1200-an accommodating space; 121-air deflectors; 122-an air duct; 1220-a support; 123-a wind guide seat; 1230-wind guide port; 1231-wind guide hole; 130-furnace cover;

200-a lifting mechanism; 210-a drive assembly; 220-arm support; 221-vertical arm; 222-a crossbar; 2220-hanging ring piece; 230-a guide seat;

300-a heating device; 310-a heating mechanism; 3100-a radiant tube; 320-a first air supply mechanism; 321-a circulating fan;

400-a cooling device; 410-a cooling circuit; 420-a second air supply mechanism; 430-a heat exchanger; 440-valve.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1, the present embodiment provides a heat treatment furnace for performing heat treatment on a product made of metal to improve product performance.

Wherein, the product can be a copper material, an iron material or other metal materials.

The application provides a heat treatment heating furnace, including heating furnace body 100 and heating device 300, can hold in heating furnace body 100 and wait to carry out the product that heat treatment, heating device 300 heats the product that waits to carry out heat treatment in heating furnace body 100.

The heating furnace body 100 includes a furnace body 110, a furnace chamber assembly 120 and a furnace cover 130, wherein the furnace chamber assembly 120 is disposed in the furnace body 110, an accommodating space 1200 is formed in the furnace chamber assembly 120, a product to be heat-treated can be placed in the accommodating space 1200, and an air guiding cavity 1000 is formed between an outer wall of the furnace chamber assembly 120 and an inner wall of the furnace body 110. The furnace cover 130 covers one end of the furnace body 110, and the furnace cover 130 and the furnace body 110 form a closed heat treatment environment, i.e., the furnace chamber assembly 120 is located in the closed heat treatment environment, in other words, the furnace chamber assembly 120 is located in the heat treatment environment, so as to heat the product.

Referring to fig. 1, fig. 2 and fig. 3, the furnace chamber assembly 120 includes an air guide duct 122, an air guide plate 121 and an air guide seat 123, wherein the air guide duct 122 is a hollow cylindrical structure, the air guide duct 122 of the hollow cylindrical structure can accommodate a product to be heat-treated, the air guide plate 121 is disposed at one end of the air guide duct 122, and the air guide seat 123 is disposed at one end of the air guide duct 122 away from the air guide plate 121.

Further, in the present embodiment, the air deflector 121 is installed on a side of the furnace cover 130 facing the air guiding duct 122, in other words, the air deflector 121 is located at an end of the air guiding duct 122 facing the furnace cover 130.

The air guide seat 123 is located at one end of the air guide cylinder 122 facing the bottom of the furnace body 110, wherein one end of the air guide seat 123 is connected to the furnace body 110, and the other end is connected to the air guide cylinder 122, in other words, the air guide seat 123 supports the air guide cylinder 122, so as to realize the installation and positioning of the air guide cylinder 122 in the furnace body 110.

The air guide seat 123 is provided with a predetermined number of air guide ports 1230, the air guide ports 1230 can allow air flow to pass through, and the accommodating space 1200 is communicated with the air guide cavity 1000 through the air guide ports 1230.

It can be understood that the accommodating space 1200, the air guiding opening 1230 and the air guiding cavity 1000 form a communicated loop.

Referring to fig. 2, in order to improve the stability of the supporting of the air duct 122 in the furnace body 110, the supporting members 1220 are uniformly arranged along the circumferential direction of the air duct 122, and the supporting members 1220 are located at one end of the air duct 122 far away from the air guiding base.

One end of the supporting member 1220 is connected to the outer wall of the air duct 122, and the other end of the supporting member 1220 abuts against the inside of the furnace body 110, and it can be understood that the supporting member 1220 can position and support the air duct 122 in the middle of the furnace body 110.

In some embodiments, the supporting member 1220 is provided with a structure that is adjusted to be telescopic by a screw thread, so that when the air guide duct 122 deviates, the air guide duct 122 can be located at a predetermined position inside the furnace body 110 by adjusting the supporting member 1220, thereby improving the stability and adjustability of the support.

Referring to fig. 1, fig. 2 and fig. 4, the heating device 300 includes a first air blowing mechanism 320 and a heating mechanism 310, the first air blowing mechanism 320 is disposed at one end of the furnace body 110, specifically, in this embodiment, the first air blowing mechanism 320 is disposed on the furnace cover 130, an air outlet of the first air blowing mechanism 320 faces the air deflector 121, and the heating mechanism 310 is disposed in the air guiding cavity 1000.

It can be understood that the first air supply mechanism 320 blows air towards the air guide plate 121, that is, an air flow is formed, the air guide plate 121 guides the air flow blown by the first air supply mechanism 320 into the air guide cavity 1000, the air flow exchanges heat with the heating mechanism 310 in the air guide cavity 1000 to heat up, the air flow after heating up flows into the accommodating space 1200 of the air guide cylinder 122 through the air guide seat 123, exchanges heat with a product in the air guide cylinder 122, and then continuously enters the air guide cavity 1000 through the first air supply mechanism 320 to exchange heat, and the process is repeated. It can be understood that the first air blowing mechanism 320, the cavity assembly 120 and the air guiding cavity 1000 form a heat circulation loop.

Further, the heating mechanism 310 comprises a predetermined number of radiant tubes 3100, and the predetermined number of radiant tubes 3100 are distributed along the inner wall of the furnace body 110, wherein, preferably, the predetermined number of radiant tubes 3100 are uniformly distributed along the inner wall of the furnace body 110, and it can be understood that the radiant tubes 3100 are located in the air guide cavity 1000 formed between the inner wall of the furnace body 110 and the outer wall of the air guide cylinder 122, and the air flow can exchange heat with the radiant tubes 3100 in the air guide cavity 1000, so that the heat exchange efficiency of the air flow and the heating mechanism 310 is effectively improved, and further the heating speed of the product can be improved.

In the present embodiment, the radiant tubes 3100 are disposed on the inner wall of the furnace body 110 in the vertical direction, and the length of the radiant tubes 3100 is equal to or less than the length of the air guide 122, so that a predetermined number of radiant tubes 3100 can be uniformly installed in the circumferential direction of the inner wall of the furnace body 110.

In some embodiments, the radiant tubes 3100 are adapted to the shape of the inner wall of the furnace body 110, a predetermined number of radiant tubes 3100 may be uniformly installed along the length direction of the inner wall of the furnace body 110, and the radiant tubes 3100 may be disposed in a region corresponding to the air guide 122.

It is understood that the number of radiant tubes 3100 is determined according to the size of the air guide and the inner wall of the furnace body 110, the number of radiant tubes 3100 is not particularly limited in this embodiment, and the number of radiant tubes 3100 may be three, four, five or other numbers.

Further, the first air supply mechanism 320 is a circulating fan 321, wherein the circulating fan 321 is installed on the furnace cover 130, and the circulating fan 321 can realize air circulation in the furnace body 110.

Referring to fig. 1 and fig. 2, in the present embodiment, the heating furnace body 100 further includes a lifting mechanism 200, and the lifting mechanism 200 includes a driving component 210 and an arm support 220, wherein the driving component 210 is disposed on the furnace body 110, and specifically, the driving component 210 is disposed on an outer wall of the furnace body 110. The arm support 220 is in an inverted L-shaped structure, the arm support 220 in the inverted L-shaped structure comprises a cross arm 222 and a vertical arm 221, the vertical arm 221 is slidably mounted on the outer wall of the furnace body 110 through a guide seat 230, one end of the vertical arm 221, which is far away from the cross arm 222, is connected with the output end of the driving assembly 210, and the cross arm 222 is connected with the furnace cover 130 through a hanging ring piece 2220.

It can be understood that, because the furnace cover 130 is heated to a higher temperature and the furnace cover 130 is heavier, the opening and closing process is time-consuming and labor-consuming, and meanwhile, potential safety hazards exist. Therefore, in the embodiment, the driving assembly 210 drives the arm support 220 to move up and down, and further drives the furnace cover 130 to perform opening and closing actions, so that time and labor are saved, and safety is further improved.

Further, the drive assembly 210 includes one of a linear motor or a motor-screw assembly.

Referring to fig. 1 and fig. 4, the heat treatment heating furnace provided in this embodiment performs two heat exchanges through the heat circulation loop after starting heating, where the two heat exchanges are respectively:

the first heat exchange is performed in the air guiding cavity 1000, specifically, the low-temperature air flow is converted into the high-temperature air flow after heat exchange with the heating mechanism 310.

The second heat exchange is performed in the accommodating space 1200 of the air duct 122, specifically, the heat exchange between the high-temperature air flow and the product is converted into the low-temperature air flow, that is, the product is heated.

This embodiment is through two heat exchanges in the thermal cycle return circuit, use the air current to be the carrier on with heating mechanism 310's heat transfer to product promptly, the air current of high temperature forms the convection current with the product, makes the product heat up fast, has saved the step of heating stifled jar among the prior art earlier, and then shortens the heating time greatly, can save energy-60% about, and then reduces the heating energy consumption, improves machining efficiency.

Example two

Referring to fig. 1, the present embodiment provides a heat treatment furnace for performing heat treatment on a product made of metal to improve product performance. The present embodiment is an improvement on the first embodiment, and compared with the first embodiment, the main difference is that:

referring to fig. 1, fig. 2 and fig. 3, in the present embodiment, the heat treatment furnace further includes a cooling device 400, and the cooling device 400 is used for cooling the heated product in the air duct 122.

The cooling device 400 includes a second air blowing mechanism 420 and a heat exchanger 430, and the second air blowing mechanism 420, the heat exchanger 430 and the cavity assembly 120 are sequentially connected by a cooling pipeline 410 to form a cooling circulation loop.

Specifically, one end of the cooling pipeline 410 penetrates through the furnace body 110 and is communicated with the air guiding seat 123, an air guiding hole 1231 is disposed on the air guiding seat 123, and the cooling pipe is communicated with the air guiding hole 1231 of the air guiding seat 123, in other words, the cooling pipeline 410 is communicated with the accommodating space 1200 in the air guiding cylinder 122. The other end of the cooling pipeline 410 penetrates through the furnace body 110 and is communicated with the air guiding cavity 1000, and the other end of the cooling pipeline 410 is arranged at a position corresponding to the air deflector 121, so that two ends of the air duct 122 respectively correspond to two ends of the cooling pipeline 410, and the path of airflow flowing during cooling is shortened, and the cooling efficiency is improved.

In this embodiment, the second air blowing mechanism 420 and the heat exchanger 430 are both disposed on the cooling pipeline 410, the second air blowing mechanism 420 is close to the air guiding seat 123, the heat exchanger 430 is close to the air guiding plate 121, and the second air blowing mechanism 420 blows air to the heat exchanger 430 in a back direction, in other words, the direction of the air flow is that the air flow is blown to the air guiding barrel 122 by the second air blowing mechanism 420 and then returns to the heat exchanger 430, that is, the second air blowing mechanism 420 sucks air to the heat exchanger 430.

In some specific embodiments, the second air blowing mechanism 420 and the heat exchanger 430 are disposed on the cooling pipeline 410, the second air blowing mechanism 420 is close to the air deflector 121, the heat exchanger 430 is close to the air deflector 123, and the second air blowing mechanism 420 blows air towards the heat exchanger 430, in other words, the direction of the air flow is blown from the second air blowing mechanism 420 to the heat exchanger 430, that is, the second air blowing mechanism 420 blows air to the heat exchanger 430.

Further, both the second blowing mechanism 420 and the heat exchanger 430 can be mounted on the cooling pipeline 410 by a flange structure for later maintenance and replacement, or can be mounted on the cooling pipeline 410 by welding.

In order to prevent the high temperature air flow from entering the cooling pipeline 410 when the heat treatment furnace is heating, at least one valve 440 is disposed on the cooling pipeline 410 for blocking the high temperature air flow from entering the cooling pipeline 410 and protecting the second blowing mechanism 420 and the heat exchanger 430.

In some embodiments, a valve 440 is disposed on the cooling pipeline 410, the valve 440 is disposed between the second air supply mechanism 420 and the furnace body 110, or the valve 440 is disposed between the heat exchanger 430 and the furnace body 110, and the valve 440 is disposed close to the furnace body 110, so that the high-temperature air flow is blocked by the valve 440 at the furnace body 110, so as to better protect the second air supply mechanism 420 and the heat exchanger 430.

In other specific embodiments, two valves 440 are disposed on the cooling pipeline 410, wherein one valve 440 is disposed between the second blowing mechanism 420 and the furnace body 110, and the other valve 440 is disposed between the heat exchanger 430 and the furnace body 110.

Further, the valve 440 includes one of a manual butterfly valve or an electric butterfly valve, although in some embodiments, both may be provided.

In this embodiment, the second air supply mechanism 420 is a fan, and the fan is driven by a motor.

In the present embodiment, the heat exchanger 430 is connected to a cooling source (not shown), and the cooling source is used for providing a cooling medium to the heat exchanger 430, and the cooling medium includes one of a liquid and a gas.

Further, the heat exchanger 430 includes a coil structure or a plate structure to improve heat exchange efficiency.

Referring to fig. 4 and fig. 5, it can be understood that, when the heat treatment heating furnace provided in the present embodiment is used for heating, the valve 440 on the cooling pipeline 410 should be closed first, and then heating is performed, wherein the heating principle and the heating process can refer to the first embodiment.

When cooling is performed, the heating device 300 is turned off, the valve 440 is opened, and the second blowing mechanism 420 is started. Similarly, the heat exchange of the heat treatment heating furnace is completed twice through the cooling circulation loop after the heat treatment heating furnace is started for cooling, and the heat exchange of the twice is as follows:

the first heat exchange is performed in the cooling circuit 410, and specifically, the high-temperature air flow is converted into a low-temperature air flow after exchanging heat with the heat exchanger 430.

The second heat exchange is performed in the accommodating space 1200 of the air duct 122, specifically, the heat exchange between the low-temperature air flow and the heated product is converted into a high-temperature air flow, that is, the cooling of the product is realized.

As can be understood, in the prior art, when the product is cooled, the stifled tank is lifted out and put into water for cooling, the gas in the tank is transferred to the product for cooling after the tank is cooled, the cooling speed is low, and the cooling time is long. The existing cooling time generally needs about twenty-four hours to call the product out of the stuffy tank, and the production efficiency is low.

In the present embodiment, the cooling capacity of the heat exchanger 430 is transferred to the product by two heat exchanges in the cooling circulation loop, that is, the airflow is used as a carrier, and the low-temperature airflow and the product form convection, so that the product is rapidly cooled to a predetermined temperature. Greatly shortens the cooling time, and can shorten half the time compared with the prior art, thereby improving the production efficiency.

In addition, the performance of the product processed by the heat treatment furnace provided in this example is greatly summarized. For example, the conductivity and softness of copper products are improved.

EXAMPLE III

Referring to fig. 1 to 3, the present embodiment provides a heat treatment method for heat-treating a product made of metal.

The heat treatment method comprises a tempering step or an annealing step, wherein the heat treatment heating furnace provided by any one of the above embodiments is applied to the tempering step or the annealing step.

Taking the heat treatment heating furnace provided in the second embodiment as an example, when the tempering step or the annealing step is performed, the furnace cover 130 on the furnace body 110 is opened, the product to be treated is loaded into the air guide cylinder 122, the furnace cover 130 is closed, the heating device 300 is started to heat the product, so that the product is heated to a predetermined temperature, and then the cooling device 400 is started to perform cooling.

In some embodiments, the incubation may be for a predetermined time before cooling.

It should be noted that, for some products which are easily oxidized, inert gas is introduced for atmosphere protection before starting heating.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. A heat treatment heating furnace is characterized by comprising a heating furnace body and a heating device;

the heating furnace body comprises a furnace body and a furnace chamber component for placing a product to be heat-treated, the furnace chamber component is arranged in the furnace body, and an air guide cavity is formed between the furnace chamber component and the furnace body;

the heating device comprises a first air supply mechanism and a heating mechanism, the first air supply mechanism is arranged at one end of the furnace body, and the heating mechanism is arranged in the air guide cavity;

the first air supply mechanism, the furnace chamber assembly and the air guide chamber form a heat circulation loop.

2. The heat treatment furnace according to claim 1, wherein the heating mechanism includes a predetermined number of radiant tubes that are distributed along an inner wall of the furnace body.

3. The heat treatment furnace according to claim 1, wherein the furnace chamber assembly includes an air guide duct, an air guide plate, and an air guide seat;

the air duct can contain a product to be thermally treated;

the air deflector is arranged at one end of the air duct and is positioned between the air duct and the first air supply mechanism;

the air guide seat is arranged at one end, far away from the air guide plate, of the air guide cylinder, and the air guide seat is located between the furnace body and the air guide cylinder.

4. The heat treatment heating furnace according to claim 3, further comprising a cooling device, wherein the cooling device comprises a second air supply mechanism and a heat exchanger, and the second air supply mechanism, the heat exchanger and the furnace chamber assembly are sequentially connected to form a cooling circulation loop.

5. The heat treatment heating furnace according to claim 4, wherein the second blower is connected to the air guide base through a cooling line, and the heat exchanger is connected to the furnace body through a cooling line.

6. The heat treatment heating furnace according to claim 4, wherein a valve is provided between the second blower and the furnace body, and/or between the heat exchanger and the furnace body.

7. The heat treatment furnace according to claim 4, wherein the heat exchanger comprises a coil-structured or plate-structured exchanger.

8. The heat treatment heating furnace according to any one of claims 1 to 7, wherein the heating furnace body further comprises a furnace cover, the furnace cover covers one end of the furnace body, and the first air supply mechanism is arranged on the furnace cover.

9. The heat treatment furnace according to claim 8, wherein the first air blowing mechanism includes a circulation fan.

10. The heat treatment heating furnace according to claim 8, wherein the heating furnace body further comprises a lifting mechanism, the lifting mechanism comprises a driving assembly and an arm support, the driving assembly is arranged on the furnace body, one end of the arm support is connected with an output end of the driving assembly, and the other end of the arm support is connected with the furnace cover.

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