Mixed heating type heat treatment furnace

Abstract

The utility model provides a mixed heating type heat treatment furnace, and belongs to the technical field of heat treatment furnaces. The mixed heating type heat treatment furnace comprises a first box body, a first transmission roller, a second box body, a second transmission roller, a third box body, a third transmission roller, an open fire burner, a radiant tube and a self-preheating burner; the steel plate is subjected to radiation heating through the radiant tubes, so that the heating temperature of the steel plate is controlled by controlling the number of the radiant tubes, and the heat treatment effect on the steel plate is improved. The steel plate is firstly heated by open fire, and then the steel plate is subjected to radiation heat transfer through the radiant tube, so that the heating temperature of the steel plate is controlled while the steel plate is rapidly heated, and the use experience of a product is improved.

Description

Technical Field

[0001] This utility model belongs to the field of heat treatment furnace technology, specifically relating to a hybrid heating heat treatment furnace. Background Technology

[0002] In related technologies, most of the existing steel plate roller hearth heat treatment furnaces use gas heating. The main heating methods are as follows: (1) Radiant tube protective atmosphere heating, using self-preheating burners. After the gas burns in the radiant tube, the heat is transferred to the steel plate or furnace lining through the radiant tube in the form of radiant heat transfer, thereby controlling the heating temperature of the steel plate; (2) Heating the medium through an open flame burner and heating the steel plate with flue gas, thereby achieving rapid heating of the steel plate.

[0003] Existing equipment typically employs only one method, thus failing to simultaneously achieve rapid heating of the steel plate and control over its heating temperature, thereby reducing the user experience of the product. Utility Model Content

[0004] To address the problem in existing technologies that fail to simultaneously achieve rapid heating and temperature control of steel plates, thus reducing the user experience, this invention provides a hybrid heating heat treatment furnace. This furnace first heats the steel plate with an open flame, then uses radiant tubes for radiant heat transfer. This achieves rapid heating of the steel plate while simultaneously controlling its temperature, thereby improving the user experience. The specific technical solution is as follows:

[0005] A hybrid heating heat treatment furnace includes: a first chamber, a first drive roller, a second chamber, a second drive roller, a third chamber, a third drive roller, an open flame burner, a radiant tube, and a self-preheating burner; the first chamber is a hollow cavity with openings at both ends; at least two first drive rollers are located inside the first chamber and are rotatably connected to the first chamber; the second chamber is a hollow cavity with openings at both ends, one end of the second chamber is connected to the first chamber, and the opening at one end of the second chamber communicates with the opening at one end of the first chamber; at least two second drive rollers are located inside the second chamber and are rotatably connected to the second chamber; the third chamber is a hollow cavity with openings at both ends, and the other end of the third chamber is connected to the second chamber. The second housing is connected to the third housing at one end; at least two third drive rollers are located inside the third housing and are rotatably connected to the third housing; at least two open flame burners are installed on the front and rear side walls of the first housing and are connected to the first housing, and are located on the upper and lower sides of the first drive roller respectively; the radiant tube is a hollow cavity with an opening at one end, at least two radiant tubes are located inside the third housing and are installed on the front and rear side walls of the third housing, and are located on the upper and lower sides of the third drive roller respectively; at least two self-preheating burners are installed on the front and rear side walls of the third housing and are connected to at least two radiant tubes respectively.

[0006] In addition, the hybrid heating heat treatment furnace in the above-mentioned technical solution provided by this utility model may also have the following additional technical features:

[0007] In the above technical solution, the hybrid heating heat treatment furnace further includes: a first refractory brick, a first support brick, and a first sealing curtain; the first refractory brick is installed at the bottom of the second housing and is located below the second drive roller; the first support brick is installed on top of the first refractory brick and is arranged around the bottom outside of the second drive roller; at least two first sealing curtains are installed on the top of the second housing and are located above the second drive roller.

[0008] In the above technical solution, the hybrid heating heat treatment furnace further includes: a second refractory brick, a second support brick, and a second sealing curtain; the second refractory brick is installed in an opening at one end of the first housing opposite to the second housing; the second support brick is installed on the second refractory brick and is arranged around the bottom outer side of the first drive roller; at least two second sealing curtains are installed on the top of the first housing and are located above the first drive roller.

[0009] In the above technical solution, the hybrid heating heat treatment furnace further includes: a third refractory brick, a third support brick, and a third sealing curtain; the third refractory brick is installed in the opening at one end of the third box away from the second box; the third support brick is installed on the third refractory brick and is arranged around the bottom outside of the third drive roller; at least two third sealing curtains are installed on the top of the third box and are located above the third drive roller.

[0010] In the above technical solution, the mixed heating heat treatment furnace further includes: a first shaped brick and a second shaped brick; the first shaped brick is installed on the inner wall of the first housing and is wrapped around the outer side of the end of the first transmission roller; the second shaped brick is installed on the inner wall of the third housing and is wrapped around the outer side of the end of the third transmission roller.

[0011] In the above technical solution, the hybrid heating heat treatment furnace also includes: a third shaped brick; the third shaped brick is installed at the bottom of the third box, and the radiant tube located below the third drive roller is placed on the third shaped brick.

[0012] In the above technical solution, the hybrid heating heat treatment furnace further includes: a first maintenance opening and a second maintenance opening; the first maintenance opening is disposed on the side wall of the third housing and is located above the third drive roller; the second maintenance opening is disposed on the side wall of the third housing and is located above the second drive roller.

[0013] The hybrid heating heat treatment furnace of this utility model has the following advantages compared with the prior art:

[0014] 1. By installing multiple open-flame burners on the front and rear side walls of the first chamber, the burners can ignite the medium, allowing the generated flue gas to flow into the first chamber and heat the steel plate placed on the first drive roller, thus achieving rapid heating of the steel plate and improving the efficiency of heat treatment. 2. By installing multiple self-preheating burners on the front and rear side walls of the third chamber, and connecting each self-preheating burner to multiple radiant tubes, the self-preheating burners can ignite the gas inside the radiant tubes, allowing heat to be transferred radiantly through the tubes, thereby heating the steel plate placed on the third drive roller. Radiant heating of the steel plate through the radiant tubes allows for temperature control by adjusting the number of radiant tubes, thus improving the heat treatment effect. First, the steel plate is heated with an open flame, then radiant heat is transferred through the radiant tubes, achieving rapid heating while controlling the heating temperature, thereby improving the user experience.

[0015] 2. By installing multiple first sealing curtains on the top of the second housing and positioning the first sealing curtains above the second drive roller, the first sealing curtains can seal the space above the second drive roller, further preventing heat from flowing into the third housing from the first housing, thus ensuring that the radiant tube can accurately control the heating temperature of the steel plate.

[0016] 3. By installing multiple second sealing curtains on the top of the first housing and positioning the second sealing curtains above the first drive roller, the second sealing curtains can seal the space above the first drive roller, further preventing heat loss from the first housing and reducing the product's operating cost.

[0017] 4. By installing multiple third sealing curtains on the top of the third housing and positioning the third sealing curtains above the third drive roller, the third sealing curtains can seal the space above the third drive roller, further preventing heat loss from the third housing and reducing the product's operating costs.

[0018] 5. By installing the first irregularly shaped brick on the inner wall of the first housing and wrapping the first irregularly shaped brick around the outer side of the end of the first transmission roller, the first irregularly shaped brick supports the first transmission roller, thereby improving the stability of the first transmission roller; by installing the second irregularly shaped brick on the inner wall of the third housing and wrapping the second irregularly shaped brick around the outer side of the end of the third transmission roller, the second irregularly shaped brick supports the third transmission roller, thereby improving the stability of the third transmission roller.

[0019] 6. By installing the third irregular brick at the bottom of the third housing and placing the radiant tube located below the third drive roller on the third irregular brick, the third irregular brick can support the radiant tube, thereby improving the stability of the radiant tube.

[0020] 7. By setting the first inspection opening on the side wall of the third housing and placing the first maintenance opening above the third drive roller, it is possible for staff to perform maintenance on the radiant tube located above the third drive roller through the first maintenance opening, thereby improving the user experience of the product; by setting the second inspection opening on the side wall of the third housing and placing the second maintenance opening below the third drive roller, it is possible for staff to perform maintenance on the radiant tube located below the third drive roller through the second maintenance opening, thereby improving the user experience of the product. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the hybrid heating heat treatment furnace of this utility model;

[0022] Figure 2 This is a cross-sectional view of the first housing of this utility model;

[0023] Figure 3This is a cross-sectional view of the third housing of this utility model;

[0024] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0025] 10 First housing, 11 First drive roller, 12 Second housing, 13 Second drive roller, 14 Third housing, 15 Third drive roller, 16 Open flame burner, 17 Radiant tube, 18 Self-preheating burner, 19 First refractory brick, 20 First support brick, 21 First sealing curtain, 22 Second refractory brick, 23 Second support brick, 24 Second sealing curtain, 25 Third refractory brick, 26 Third support brick, 27 Third sealing curtain, 28 First irregularly shaped brick, 29 Second irregularly shaped brick, 30 Third irregularly shaped brick. Detailed Implementation

[0026] The following are specific implementation cases and appendices. Figures 1 to 3 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0027] A hybrid heating heat treatment furnace, such as Figures 1 to 3As shown, the hybrid heating heat treatment furnace includes: a first housing 10, a first drive roller 11, a second housing 12, a second drive roller 13, a third housing 14, a third drive roller 15, an open flame burner 16, a radiant tube 17, and a self-preheating burner 18; the first housing 10 is a hollow cavity with openings at both ends; at least two first drive rollers 11 are located inside the first housing 10, and at least two first drive rollers 11 are rotatably connected to the first housing 10; the second housing 12 is a hollow cavity with openings at both ends, one end of the second housing 12 is connected to the first housing 10, and one end opening of the second housing 12 communicates with one end opening of the first housing 10; at least two second drive rollers 13 are located inside the second housing 12, and at least two second drive rollers 13 are rotatably connected to the second housing 12; the third housing 14 is a hollow cavity with openings at both ends, and the third housing 14 is connected to the other end of the second housing 12. The other end of the second housing 12 is connected to the opening at one end of the third housing 14; at least two third drive rollers 15 are located inside the third housing 14, and at least two third drive rollers 15 are rotatably connected to the third housing 14; at least two open flame burners 16 are installed on the front and rear side walls of the first housing 10, at least two open flame burners 16 are connected to the first housing 10, and at least two open flame burners 16 are located on the upper and lower sides of the first drive roller 11 respectively; the radiant tube 17 is a hollow cavity with an opening at one end, at least two radiant tubes 17 are located inside the third housing 14, at least two radiant tubes 17 are installed on the front and rear side walls of the third housing 14, and at least two radiant tubes 17 are located on the upper and lower sides of the third drive roller 15 respectively; at least two self-preheating burners 18 are installed on the front and rear side walls of the third housing 14, and at least two self-preheating burners 18 are connected to at least two radiant tubes 17 respectively.

[0028] By placing multiple first drive rollers 11 within the first housing 10 and rotatably connecting them to the first housing 10, the first housing 10 supports the multiple first drive rollers 11, enabling them to rotate within the first housing 10. This allows the steel plate to be placed on the multiple first drive rollers 11, simultaneously rotating them to move the steel plate. Similarly, by placing multiple second drive rollers 13 within the second housing 12 and rotatably connecting them to the second housing 12, [further details are needed to complete the translation]. The second housing 12 supports multiple second drive rollers 13, enabling the multiple second drive rollers 13 to rotate within the second housing 12. This allows the multiple second drive rollers 13 to rotate simultaneously when the steel plate is placed on them, thus coordinating with each other to move the steel plate. By connecting one end opening of the second housing 12 to one end opening of the first housing 10, the steel plate can be moved from the first drive roller 11 to the second drive roller 13 when the first drive roller 11 moves it, thereby allowing the steel plate to enter the second housing 12 from the first housing 10. By placing multiple third drive rollers 15 inside the third housing 14 and rotatably connecting them, the third housing 14 supports the multiple third drive rollers 15, allowing them to rotate within the housing 14. This enables the steel plate to be placed on the rollers and rotate simultaneously, thus moving the steel plate. By connecting the other end of the second housing 12 to the end of the third housing 14, the steel plate can be moved from the second drive roller 13 to the third drive roller 15 when the second drive roller 13 moves it, allowing the steel pipe to enter the third housing 14 from the second housing 12.By installing multiple open-flame burners 16 on the front and rear side walls of the first housing 10, connecting the multiple open-flame burners 16 to the first housing 10, and positioning at least two open-flame burners 16 on the upper and lower sides of the first drive roller 11 respectively, the open-flame burners 16 can ignite the medium, thereby allowing the generated flue gas to flow into the first housing 10 and heat the steel plate placed on the first drive roller 11; by installing multiple radiant tubes 17 on the front and rear side walls of the third housing 14, and positioning the multiple radiant tubes 17 on the upper and lower sides of the third drive roller 15 respectively... The upper and lower sides are designed to support the multiple radiant tubes 17 in the third housing 14, thereby improving the stability of the radiant tubes 17 and allowing the gas to flow into the radiant tubes 17. By installing multiple self-preheating burners 18 on the front and rear side walls of the third housing 14 and connecting the multiple self-preheating burners to the multiple radiant tubes 17, the self-preheating burners 18 can ignite the gas in the radiant tubes 17, thereby enabling heat to be transferred through the radiant tubes 17 and heating the steel plate placed on the third drive roller 15.

[0029] In the actual use of the product, the steel plate is first placed on the first drive roller 11; at the same time, the open flame burner 16 is activated, which burns the medium and generates flue gas, which flows into the first housing 10 and heats the steel plate placed on the first drive roller 11, so that the steel plate can quickly reach the preset temperature; then, the first drive roller 11, the second drive roller 13 and the third drive roller 15 are rotated at the same time, so that the first drive roller 11 moves the steel plate to the second drive roller 13, and the second drive roller 13 moves the steel plate to the third drive roller 15; then, the gas is injected into the radiant tube 17 and the self-preheating burner 18 is activated, so that the self-preheating burner 18 ignites the gas, and the heat generated is radiated through the radiant tube 17, thereby heating the steel plate placed on the third drive roller 15 to complete the heat treatment of the steel plate.

[0030] Using the above structure, multiple open-flame burners 16 are installed on the front and rear side walls of the first housing 10, enabling the burners 16 to ignite the medium. The resulting flue gas flows into the first housing 10 and heats the steel plate placed on the first drive roller 11, thus achieving rapid heating of the steel plate and improving the efficiency of heat treatment. Multiple self-preheating burners 18 are installed on the front and rear side walls of the third housing 14, and each self-preheating burner is connected to multiple radiant tubes 17. The self-preheating burners 18 ignite the gas inside the radiant tubes 17, allowing heat to be transferred radiantly through the tubes, thereby heating the steel plate placed on the third drive roller 15. By controlling the number of radiant tubes 17, the heating temperature of the steel plate can be controlled, thus improving the heat treatment effect. The steel plate is first heated with an open flame, and then radiant heat is transferred to the steel plate through the radiant tube 17. This allows for rapid heating of the steel plate while controlling its heating temperature, thereby improving the user experience of the product.

[0031] In embodiments of this utility model, such as Figures 1 to 3 As shown, the hybrid heating heat treatment furnace further includes: a first refractory brick 19, a first support brick 20, and a first sealing curtain 21; the first refractory brick 19 is installed at the bottom of the second housing 12 and is located below the second drive roller 13; the first support brick 20 is installed on top of the first refractory brick 19 and is arranged around the bottom outer side of the second drive roller 13; at least two first sealing curtains 21 are installed on the top of the second housing 12 and are located above the second drive roller 13.

[0032] By installing the first refractory brick 19 at the bottom of the second housing 12 and placing it below the second drive roller 13, the first refractory brick 19 can seal off the area below the second drive roller 13, thereby preventing heat from the first housing 10 from flowing into the third housing 14. By installing the first support brick 20 on top of the first refractory brick 19 and placing it around the bottom outer side of the second drive roller 13, the first support block can support the second drive roller 13, thereby improving the stability of the second drive roller 13 and preventing heat from the first housing 10 from flowing into the third housing 14. By installing multiple first sealing curtains 21 on top of the second housing 12 and placing them above the second drive roller 13, the first sealing curtains 21 can seal off the space above the second drive roller 13, further preventing heat from the first housing 10 from flowing into the third housing 14, thus ensuring that the radiant tube 17 can accurately control the heating temperature of the steel plate.

[0033] In embodiments of this utility model, such as Figures 1 to 3 As shown, the hybrid heating heat treatment furnace further includes: a second refractory brick 22, a second support brick 23, and a second sealing curtain 24; the second refractory brick 22 is installed in the opening at the end of the first housing 10 away from the second housing 12; the second support brick 23 is installed on the second refractory brick 22, and the second support brick 23 is arranged around the bottom outer side of the first drive roller 11; at least two second sealing curtains 24 are installed on the top of the first housing 10, and the second sealing curtains 24 are located above the first drive roller 11.

[0034] By installing the second refractory brick 22 inside the opening at the end of the first housing 10 away from the second housing 12, the second refractory brick 22 can seal the opening of the first housing 10, thereby preventing heat loss from the first housing 10. By installing the second support brick 23 on the second refractory brick 22 and surrounding the bottom outside of the first drive roller 11, the second support brick 23 can support the first drive roller 11 and also prevent heat loss from the first housing 10. By installing multiple second sealing curtains 24 on the top of the first housing 10 and positioning the second sealing curtains 24 above the first drive roller 11, the second sealing curtains 24 can seal the space above the first drive roller 11, further preventing heat loss from the first housing 10 and reducing the product's operating cost.

[0035] In embodiments of this utility model, such as Figures 1 to 3 As shown, the hybrid heating heat treatment furnace further includes: a third refractory brick 25, a third support brick 26, and a third sealing curtain 27; the third refractory brick 25 is installed in the opening at the end of the third housing 14 away from the second housing 12; the third support brick 26 is installed on the third refractory brick 25, and the third support brick 26 is arranged around the bottom outer side of the third drive roller 15; at least two third sealing curtains 27 are installed on the top of the third housing 14, and the third sealing curtains 27 are located above the third drive roller 15.

[0036] By installing the third refractory brick 25 inside the opening at the end of the third housing 14 opposite to the second housing 12, the third refractory brick 25 can seal the opening of the third housing 14, thereby preventing heat loss from the third housing 14. By installing the third support brick 26 on the third refractory brick 25 and surrounding the bottom outer side of the third drive roller 15, the third support brick 26 can support the third drive roller 15 and also prevent heat loss from the third housing 14. By installing multiple third sealing curtains 27 on the top of the third housing 14 and positioning the third sealing curtains 27 above the third drive roller 15, the third sealing curtains 27 can seal the space above the third drive roller 15, further preventing heat loss from the third housing 14 and reducing the product's operating cost.

[0037] In embodiments of this utility model, such as Figures 1 to 3 As shown, the mixed heating heat treatment furnace also includes: a first shaped brick 28 and a second shaped brick 29; the first shaped brick 28 is installed on the inner wall of the first housing 10 and is wrapped around the outer side of the end of the first transmission roller 11; the second shaped brick 29 is installed on the inner wall of the third housing 14 and is wrapped around the outer side of the end of the third transmission roller 15.

[0038] By installing the first irregularly shaped brick 28 on the inner wall of the first housing 10 and wrapping the first irregularly shaped brick 28 around the outer side of the end of the first transmission roller 11, the first irregularly shaped brick 28 supports the first transmission roller 11, thereby improving the stability of the first transmission roller 11; by installing the second irregularly shaped brick 29 on the inner wall of the third housing 14 and wrapping the second irregularly shaped brick 29 around the outer side of the end of the third transmission roller 15, the second irregularly shaped brick 29 supports the third transmission roller 15, thereby improving the stability of the third transmission roller 15.

[0039] In embodiments of this utility model, such as Figures 1 to 3 As shown, the mixed heating heat treatment furnace also includes: a third shaped brick 30; the third shaped brick 30 is installed at the bottom of the third housing 14, and the radiation tube 17 located below the third drive roller 15 is placed on the third shaped brick 30.

[0040] By installing the third irregular brick 30 at the bottom of the third housing 14 and placing the radiant tube 17 located below the third transmission roller 15 on the third irregular brick 30, the third irregular brick 30 can support the radiant tube 17, thereby improving the stability of the radiant tube 17.

[0041] In embodiments of this utility model, such as Figures 1 to 3 As shown, the hybrid heating heat treatment furnace further includes: a first maintenance opening and a second maintenance opening; the first maintenance opening is disposed on the side wall of the third housing 14 and is located above the third drive roller 15; the second maintenance opening is disposed on the side wall of the third housing 14 and is located above the second drive roller 13.

[0042] By setting the first inspection opening on the side wall of the third housing 14 and placing the first maintenance opening above the third drive roller 15, it is possible for staff to perform maintenance on the radiant tube 17 located above the third drive roller 15 through the first maintenance opening, thereby improving the user experience of the product. Similarly, by setting the second inspection opening on the side wall of the third housing 14 and placing the second maintenance opening below the third drive roller 15, it is possible for staff to perform maintenance on the radiant tube 17 located below the third drive roller 15 through the second maintenance opening, thereby improving the user experience of the product.

[0043] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0044] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hybrid heat treatment furnace characterized by, The mixed heating type heat treatment furnace comprises: a first box body, which is a hollow cavity with openings at both ends; a first transmission roller, at least two of which are located in the first box body and rotationally connected with the first box body; a second box body, which is a hollow cavity with openings at both ends, one end of the second box body being connected with the first box body, and the opening at one end of the second box body being in communication with the opening at one end of the first box body; a second transmission roller, at least two of which are located in the second box body and rotationally connected with the second box body; a third box body, which is a hollow cavity with openings at both ends, the third box body being connected with the other end of the second box body, and the opening at the other end of the second box body being in communication with the opening at one end of the third box body; a third transmission roller, at least two of which are located in the third box body and rotationally connected with the third box body; an open flame burner, at least two of which are installed on the front and rear sidewalls of the first box body, in communication with the first box body, and located above and below the first transmission roller respectively; a radiation tube, which is a hollow cavity with an opening at one end, at least two of which are located in the third box body, installed on the front and rear sidewalls of the third box body, and located above and below the third transmission roller respectively; a self-preheating burner, at least two of which are installed on the front and rear sidewalls of the third box body, and in communication with at least two of the radiation tubes respectively.

2. The hybrid heat treatment furnace according to claim 1, wherein The mixed heating type heat treatment furnace further comprises: a first refractory brick, which is installed at the bottom of the second box body and located below the second transmission roller; a first support brick, which is installed on the top of the first refractory brick and arranged around the outside of the bottom of the second transmission roller; a first sealing curtain, at least two of which are installed on the top of the second box body and located above the second transmission roller.

3. A hybrid heat treatment furnace according to claim 2, wherein The mixed heating type heat treatment furnace further comprises: a second refractory brick, which is installed in the opening at one end of the first box body away from the second box body; a second support brick, which is installed on the second refractory brick and arranged around the outside of the bottom of the first transmission roller; a second sealing curtain, at least two of which are installed on the top of the first box body and located above the first transmission roller.

4. A hybrid heat treatment furnace according to claim 3, wherein The mixed heating type heat treatment furnace further comprises: a third refractory brick, which is installed in the opening at one end of the third box body away from the second box body; a third support brick, which is installed on the third refractory brick and arranged around the outside of the bottom of the third transmission roller; Third sealing curtain, at least two third sealing curtains are installed on the top of the third box body, and the third sealing curtains are located above the third transmission roller.

5. The hybrid heat treatment furnace according to claim 1, wherein The mixed heating type heat treatment furnace further comprises: First special-shaped brick, the first special-shaped brick is installed on the inner wall of the first box body, and the first special-shaped brick is arranged outside the end of the first transmission roller; Second special-shaped brick, the second special-shaped brick is installed on the inner wall of the third box body, and the second special-shaped brick is arranged outside the end of the third transmission roller.

6. A hybrid heat treatment furnace according to claim 5, wherein The mixed heating type heat treatment furnace further comprises: Third special-shaped brick, the third special-shaped brick is installed on the bottom of the third box body, and the radiation pipe located below the third transmission roller is placed on the third special-shaped brick.

7. A hybrid heat treatment furnace according to claim 6, wherein The mixed heating type heat treatment furnace further comprises: First maintenance opening, the first maintenance opening is arranged on the side wall of the third box body, and the first maintenance opening is located above the third transmission roller; Second maintenance opening, the second maintenance opening is arranged on the side wall of the third box body, and the second maintenance opening is located above the second transmission roller.

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