Cross-tandem material heat treatment equipment

Abstract

This invention provides a cross-series heat treatment device for materials, comprising multiple heating devices connected in series. Each heating device has a preheating space and a heating space. The preheating space has a feeding zone, and the heating space has a heating zone. The preheating space also has a discharge zone connected to the heating zone. In two adjacent heating devices, the feeding zone of the preceding heating device is connected to the heating zone of the following heating device. Material from the feeding zone of the preceding heating device enters the heating zone of the following heating device. Material discharged from the heating zone of the following heating device moves to the discharge zone and exchanges heat with the material in the feeding zone. The cross-series heat treatment device provided by this invention can efficiently recover the waste heat of materials directly lost in traditional equipment, avoiding energy waste. At the same time, it preheats newly fed materials, reducing their energy consumption for heating in the heating zone and significantly improving energy utilization.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat exchange heating furnaces, specifically relating to a cross-series material heat treatment device. Background Technology

[0002] Conventional heating furnaces are core equipment widely used in the field of material heat treatment, encompassing major types such as traditional heating kilns and roller kilns. Their core function is to provide a stable high-temperature environment for materials to achieve key heat treatment processes such as sintering and annealing. In actual operation, conventional heating furnaces mostly adopt an independent structural design, with separate feeding and discharging channels. The materials to be processed need to be filled into supporting components such as saggers, and then transported to the designated area inside the furnace by transmission mechanisms such as roller conveyors. Under the action of the heating device inside the furnace, the materials complete the directional movement and heat treatment process.

[0003] In existing technologies, conventional heating furnaces mostly adopt an independent structural design, with separate feeding and discharging channels. The material to be processed is transported to a designated space inside the furnace, where it undergoes directional movement and heat treatment under the action of the heating device. However, after heat treatment, the large amount of residual heat carried by the discharged material is not effectively recovered and is directly dissipated, while new material needs to be heated from room temperature. This not only increases energy consumption but also significantly reduces energy utilization. Due to the lack of preheating for new material, the material heats up slowly inside the furnace, failing to quickly reach the required process temperature. At the same time, the heat-treated material is also difficult to cool down quickly, prolonging the overall process cycle and resulting in low processing efficiency. Utility Model Content

[0004] This utility model provides a cross-series material heat treatment device, which aims to reduce waste heat and improve material processing efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A cross-connected heat treatment device for materials is provided, comprising multiple heating devices connected in series. Each heating device has a preheating space and a heating space. The preheating space has a feeding zone, and the heating space has a heating zone. The preheating space also has a discharge zone connected to the heating zone. In two adjacent heating devices, the feeding zone of the preceding heating device is connected to the heating zone of the following heating device. Material from the feeding zone of the preceding heating device enters the heating zone of the following heating device. Material discharged from the heating zone of the following heating device moves to the discharge zone and exchanges heat with the material in the feeding zone.

[0006] In one possible implementation, each heating device includes a preheating chamber, a heating chamber, a first conveying structure, a second conveying structure, a third conveying structure, and a connecting box; the preheating chamber has a preheating cavity with one end open, which is a preheating space; the preheating chamber has a discharge port communicating with the preheating cavity; the heating chamber is connected to the other end of the preheating chamber and has a heating cavity, which is a heating space; the heating chamber has a feed inlet communicating with the heating cavity; the first conveying structure is disposed in the preheating cavity, with one end corresponding to the discharge port, and the area where the first conveying structure is located forms a feed area; the second conveying structure is disposed in the heating cavity, with one end corresponding to the feed inlet; the area where the second conveying structure is located forms a heating area; the third conveying structure is disposed in the preheating cavity; one end of the third conveying structure corresponds to the opening of the preheating cavity, and the other end is connected to the other end of the second conveying structure; the area where the third conveying structure is located forms a discharge area; the connecting box has a material transfer channel communicating with the discharge port, and the connecting box is used to connect to the feed inlet on another adjacent heating device.

[0007] In some embodiments, the preheating chamber and the heating chamber are spaced in a first direction, and the horizontal direction perpendicular to the first direction is a second direction; the first conveying structure includes a first main conveying section and a first auxiliary conveying section; the first main conveying section is disposed in the preheating chamber along the first direction; the first auxiliary conveying section is disposed in the preheating chamber along the second direction and is connected to the first main conveying section; the first auxiliary conveying section corresponds to the discharge port.

[0008] For example, the second conveying structure includes a second main conveying section and a second auxiliary conveying section; the second main conveying section is disposed in the heating chamber along a first direction; the second auxiliary conveying section is disposed in the heating chamber along a second direction and is connected to the second main conveying section, and the second auxiliary conveying section corresponds to the feed inlet.

[0009] For example, the second main transfer section is located at a higher altitude than the first main transfer section or the first auxiliary transfer section.

[0010] In some embodiments, the third conveying structure includes a third main conveying section and a third auxiliary conveying section; there are two third main conveying sections, which are located on both sides of the first main conveying section along the second direction; the two ends of the third main conveying section have height differences that are adapted to the first main conveying section and the second main conveying section; the third auxiliary conveying section is arranged in the preheating chamber along the second direction, and its two ends are respectively connected to the two third main conveying sections, and the third auxiliary conveying section is connected to the second main conveying section.

[0011] For example, the connecting box is provided with a fourth conveying structure, which is inclined and connected to the second conveying structure on the adjacent heating device.

[0012] For example, the preheating chamber is also equipped with a cooling component, which is located on the third conveying structure and is used to cool the heat-treated material.

[0013] In one possible implementation, a sealing door is rotatably mounted on the preheating chamber, which is used to close and seal the preheating space.

[0014] The beneficial effects of the cross-series material heat treatment equipment provided by this utility model are as follows: Compared with the prior art, this utility model sets up multiple heating devices connected in series, with each heating device having a preheating space containing a feeding zone and a heating space containing a heating zone. The preheating space also includes a discharge zone connected to the heating zone. Furthermore, the feeding zone of the preceding device is connected to the heating zone of the following device, allowing material from the feeding zone of the preceding device to enter the heating zone of the following device for heating, and the high-temperature material discharged from the heating zone of the following device to enter its own discharge zone. During this process, the high-temperature material in the discharge zone of the following device directly exchanges heat with the room-temperature material in the feeding zone of the preceding device. This efficiently recovers the waste heat directly lost in traditional equipment, avoiding energy waste. Simultaneously, it preheats newly fed materials, reducing their energy consumption in the heating zone and significantly improving energy utilization. The preheated material can quickly reach the required process temperature, and the high-temperature material can achieve preliminary cooling through heat exchange, effectively solving the problems of slow heating and difficult cooling in traditional equipment, and significantly shortening the overall process cycle. The series layout of multiple units and the continuous material flow design replace the intermittent operation mode of traditional independent heating furnaces, realizing continuous production of material heat treatment and further improving the overall processing efficiency. Attached Figure Description

[0015] Figure 1 A top view of the cross-connected material heat treatment equipment provided in this embodiment of the utility model, in which multiple heating devices are connected in series sequentially. Figure 2 A top view of the cross-connected material heat treatment equipment provided in this embodiment of the utility model when two heating devices are connected to each other; Figure 3 A three-dimensional structural schematic diagram of the cross-connected material heat treatment equipment provided in the embodiment of this utility model; Figure 4 This is a three-dimensional structural diagram of the heating device used in an embodiment of this utility model; Figure 5 This is a three-dimensional structural diagram of the preheating box and heating box used in the embodiments of this utility model; Figure 6 This is a three-dimensional structural diagram of the internal space of the preheating chamber and heating chamber used in the embodiments of this utility model; Figure 7 This is a three-dimensional structural diagram of the first conveying structure, the second conveying structure, and the third conveying structure used in the embodiments of this utility model; In the diagram: 10. Preheating box; 11. Discharge port; 12. Cooling component; 13. Sealing door; 20. Heating box; 21. Feed inlet; 30. First conveying structure; 31. First main conveying section; 32. First auxiliary conveying section; 40. Second conveying structure; 41. Second main conveying section; 42. Second auxiliary conveying section; 50. Third conveying structure; 51. Third main conveying section; 52. Third auxiliary conveying section; 60. Connecting box; 61. Fourth conveying structure; x - First direction; y - Second direction. Detailed Implementation

[0016] To make the technical problems, solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0017] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] Please refer to the following: Figures 1 to 3 The present invention provides a cross-series heat treatment device for materials. The cross-series heat treatment device includes multiple heating devices connected in series. Each heating device has a preheating space and a heating space. The preheating space has a feeding zone, and the heating space has a heating zone. The preheating space also has a discharge zone connected to the heating zone. In two adjacent heating devices, the feeding zone of the preceding heating device is connected to the heating zone of the following heating device. Material from the feeding zone of the preceding heating device enters the heating zone of the following heating device. Material discharged from the heating zone of the following heating device moves to the discharge zone and exchanges heat with the material in the feeding zone.

[0019] It should be noted that multiple heating devices are arranged in series to form a continuous processing link; the preheating space and the heating space inside a single heating device are distributed in front of and behind each other; the preheating space integrates a feeding area for the material to be processed and a discharge area for the material to be discharged after heat treatment, and the discharge area is directly connected to the heating area of ​​the heating space; adjacent heating devices form a material transfer channel across devices through the connection between the previous feeding area and the next heating area.

[0020] The material to be processed first enters the feeding area of ​​the previous heating device and is then transported to the heating area of ​​the next heating device for heat treatment through a connecting structure. The high-temperature material that has been processed in the heating area of ​​the next heating device enters the discharge area of ​​its own preheating space. The high-temperature material in the discharge area comes into direct contact with the room-temperature material in the feeding area in the same preheating space, and heat exchange is achieved through heat conduction and heat radiation, thus completing the recovery of waste heat and the preheating of the new material.

[0021] Compared with the prior art, the cross-series material heat treatment equipment provided by this utility model sets up multiple heating devices connected in series, and each heating device has a preheating space containing a feeding zone and a heating space containing a heating zone. The preheating space also includes a discharge zone connected to the heating zone. At the same time, the feeding zone of the preceding device in an adjacent heating device is designed to be connected to the heating zone of the following device, so that the material in the feeding zone of the preceding device enters the heating zone of the following device for heating, and the high-temperature material discharged from the heating zone of the following device enters its own discharge zone.

[0022] In this process, the high-temperature material in the discharge zone of the subsequent unit directly exchanges heat with the room-temperature material in the feed zone of the preceding unit. This efficiently recovers the waste heat lost directly in traditional equipment, avoiding energy waste. Simultaneously, it preheats the incoming material, reducing its energy consumption in the heating zone and significantly improving energy utilization. The preheated material quickly reaches the required process temperature, and the high-temperature material undergoes preliminary cooling through heat exchange, effectively solving the problems of slow heating and difficult cooling in traditional equipment, and significantly shortening the overall process cycle. The series layout of multiple units and the continuous material flow design replace the intermittent operation mode of traditional independent heating furnaces, realizing continuous production of material heat treatment and further improving overall processing efficiency.

[0023] Please see Figures 4 to 6 Each heating device includes a preheating chamber 10, a heating chamber 20, a first conveying structure 30, a second conveying structure 40, a third conveying structure 50, and a connecting box 60; the preheating chamber 10 has a preheating cavity with one end open, which is a preheating space; the preheating chamber 10 is provided with a discharge port 11 communicating with the preheating cavity; the heating chamber 20 is connected to the other end of the preheating chamber 10, and has a heating cavity, which is a heating space; the heating chamber 20 is provided with a feed inlet 21 communicating with the heating cavity.

[0024] The first conveying structure 30 is disposed in the preheating chamber, with one end corresponding to the discharge port 11, and the area where the first conveying structure 30 is located forms the feeding zone; the second conveying structure 40 is disposed in the heating chamber, with one end corresponding to the feed port 21; the area where the second conveying structure 40 is located forms the heating zone; the third conveying structure 50 is disposed in the preheating chamber; one end of the third conveying structure 50 corresponds to the opening of the preheating chamber, and the other end is connected to the other end of the second conveying structure 40; the area where the third conveying structure 50 is located forms the discharge zone; the connecting box 60 has a material transfer channel communicating with the discharge port 11, and the connecting box 60 is used to connect to the feed port 21 on another adjacent heating device.

[0025] It should be noted that the preheating chamber 10 and the heating chamber 20 are integrated. Inside the preheating chamber, the first conveying structure 30 corresponds to the discharge port 11, and the third conveying structure 50 connects to the opening of the preheating chamber 10 at one end and to the second conveying structure 40 inside the heating chamber at the other end. Inside the heating chamber, the second conveying structure 40 corresponds to the feed inlet 21. The connecting box 60 serves as a connector between adjacent devices, with one end connected to the discharge port 11 of the preceding device and the other end connected to the feed inlet 21 of the following device. The first conveying structure 30, the second conveying structure 40, and the third conveying structure 50 can all be conveying rollers composed of multiple sets of parallel metal rollers.

[0026] The material to be heated in the feeding area is conveyed to the discharge port 11 via the first conveying structure 30, then fed into the feed port 21 of the next device via the connecting box 60, and enters the second conveying structure 40 to complete heat treatment. The high-temperature material after heat treatment enters the third conveying structure 50 from the end of the second conveying structure 40, and is conveyed along it to the open preheating chamber 10 for discharge. During the conveying process, heat exchange is completed with the material to be heated on the first conveying structure 30 in the preheating chamber. The partitioned design of the conveying structure makes the material flow path clear and avoids interference from the mixing of materials in different states; the connecting box 60 realizes the sealed connection between adjacent devices, reduces heat loss during material transfer, and enhances heat exchange efficiency.

[0027] Please see Figures 5 to 7 The preheating chamber and the heating chamber are spaced in a first direction x, and the horizontal direction perpendicular to the first direction x is the second direction y. The first conveying structure 30 includes a first main conveying section 31 and a first auxiliary conveying section 32. The first main conveying section 31 is disposed in the preheating chamber 10 along the first direction x. The first auxiliary conveying section 32 is disposed in the preheating chamber 10 along the second direction y and is connected to the first main conveying section 31. The first auxiliary conveying section 32 corresponds to the discharge port 11.

[0028] It should be noted that the first main transfer section 31 is arranged in the preheating chamber along the interval direction between the preheating chamber and the heating chamber; the first auxiliary transfer section 32 is arranged in the horizontal direction perpendicular to the interval direction, with one end connected to the first main transfer section 31 and the other end corresponding to the discharge port 11 of the preheating box 10.

[0029] The material to be heated is conveyed along the first direction x in the first main transfer section 31. After reaching the end, it turns to the first secondary transfer section 32 and is conveyed along the second direction y to the discharge port 11, and then enters the next device through the connecting box 60. The direction change of the first main transfer section 31 in conjunction with the first secondary transfer section 32 can optimize the spatial layout within the preheating chamber and avoid spatial conflicts between the first conveying structure 30 and the third conveying structure 50. The secondary transfer section, which conveys along the second direction y, is easy to connect with the connecting box 60, which can reduce the turning resistance of material conveying and improve the transmission stability.

[0030] Please see Figures 5 to 7 The second conveying structure 40 includes a second main conveying section 41 and a second auxiliary conveying section 42. The second main conveying section 41 is disposed in the heating chamber 20 along the first direction x. The second auxiliary conveying section 42 is disposed in the heating chamber 20 along the second direction y and is connected to the second main conveying section 41. The second auxiliary conveying section 42 corresponds to the feed inlet 21.

[0031] It should be noted that the second main transfer section 41 is arranged in the heating chamber along the first direction x, and the second main transfer section 41 conveys in the same direction as the first main transfer section 31; the second auxiliary transfer section 42 is arranged along the second direction y, with one end connected to the second main transfer section 41 and the other end corresponding to the feed port 21 of the heating box 20.

[0032] The material conveyed by the previous device enters the feed inlet 21 through the connecting box 60, is conveyed by the second auxiliary transfer section 42 along the second direction y, and then turns to the second main transfer section 41 to complete heat treatment in the heating zone along the first direction x. The directional design of the second conveying structure 40 echoes that of the first conveying structure 30, so that the material transfer path of adjacent devices is in a straight line or at a regular angle, reducing conveying energy consumption; the second main transfer section 41 along the first direction x extends the residence time of the material in the heating zone, ensuring heating uniformity.

[0033] Please see Figure 7 The height of the second main transfer section 41 is higher than that of the first main transfer section 31 or the first auxiliary transfer section 32.

[0034] It should be noted that the second main transfer section 41 in the heating chamber is vertically positioned higher than the first main transfer section 31 or the first auxiliary transfer section 32 in the preheating chamber. When high-temperature material enters the third conveying structure 50 from the second main transfer section 41, gravity-assisted conveying can be achieved by utilizing the height difference, reducing the power drive requirement. Furthermore, the height difference provides discharge space for the discharge port 11, enabling mutual conveying between adjacent heating devices.

[0035] The height difference spatially separates the heating zone from the feeding zone, preventing localized overheating caused by direct high-temperature radiation to unheated materials. Utilizing gravity-assisted conveying reduces equipment energy consumption; physical isolation through the height difference minimizes thermal interference, ensuring uniform preheating of materials in the feeding zone while protecting the first conveying structure 30 from excessively high temperatures.

[0036] Please see Figure 7 The third conveying structure 50 includes a third main conveying section 51 and a third auxiliary conveying section 52. There are two third main conveying sections 51, which are located on both sides of the first main conveying section 31 along the second direction y. The two ends of the third main conveying section 51 have a height difference that matches the first main conveying section 31 and the second main conveying section 41. The third auxiliary conveying section 52 is arranged in the preheating box 10 along the second direction y, and its two ends are respectively connected to the two third main conveying sections 51. The third auxiliary conveying section 52 is connected to the second main conveying section 41.

[0037] It should be noted that the two third main transmission segments 51 are symmetrically distributed on both sides of the first main transmission segment 31 and arranged along the second direction y. The heights of their two ends are respectively adapted to the first main transmission segment 31 and the second main transmission segment; the third auxiliary transmission segment 52 is arranged along the second direction y, connects the two third main transmission segments 51, and connects to the end of the second main transmission segment 41.

[0038] The heated high-temperature material enters the third secondary transfer section 52 from the second main transfer section 41, and is diverted to the two sides of the third main transfer section 51, and then conveyed to both sides of the first main transfer section 31 along the second direction y. During the conveying process, the high-temperature material on both sides exchanges heat with the material to be heated on the middle first main transfer section 31, expanding the contact area. The double-sided layout of the third main transfer section 51 can significantly increase the heat exchange area and improve the waste heat recovery efficiency; and the height difference ensures smooth conveying of high-temperature material and avoids accumulation; the third conveying structure 50 is a symmetrical structure, which can make the temperature distribution in the preheating chamber more uniform and improve the preheating effect of the material in the feeding area.

[0039] Please see Figure 3 and Figure 4 The connecting box 60 is equipped with a fourth conveying structure 61, which is inclined and connected to the second conveying structure 40 on the adjacent heating device.

[0040] It should be noted that the connecting box 60, serving as the connecting carrier between two adjacent heating devices, requires its internal fourth conveying structure 61 to have an inclination angle that matches the height difference between the discharge port 11 of the preceding heating device and the inlet 21 of the following heating device. The fourth conveying structure 61 can be a conveying roller composed of multiple sets of parallel metal rollers. One end of the fourth conveying structure 61 connects to the discharge port 11 of the preheating chamber 10 of the preceding heating device, and the other end extends to the inlet 21 of the heating chamber 20 of the following heating device, directly connecting with the second conveying structure 40 within the heating chamber. The fourth conveying structure 61 must integrate an active drive component, with the inclined frame and drive component jointly fixed inside the connecting box 60 to ensure structural stability.

[0041] The purpose of the inclined layout of the fourth conveying structure 61 is to bridge the height difference between adjacent devices. Due to the layout limitations of the preheating chamber of the preceding device, the height of the discharge port 11 is lower than the height of the second conveying structure 40 of the heating chamber of the following device. The fourth conveying structure 61 uses an inclined path to smoothly lift the material from the low position to the high position and accurately feed it into the second conveying structure 40 of the following device, avoiding material stagnation or collision at the height difference.

[0042] Please see Figure 5 The preheating chamber 10 is also equipped with a cooling component 12, which is located on the third conveying structure 50 and is used to cool the heat-treated material.

[0043] It should be noted that the cooling component 12 can be a cooling pipe or a heat sink, installed on the third conveying structure 50 inside the preheating chamber, directly contacting or acting at close range with the high-temperature material. Before the high-temperature material is conveyed to the heating device on the third conveying structure 50, the cooling component 12 actively absorbs its excess heat, accelerating the cooling of the material. The cooling component 12 can actively cool down and shorten the cooling time of the high-temperature material, further compressing the process cycle and improving the efficiency of heat treatment.

[0044] Please see Figure 4 and Figure 5 A sealing door 13 is rotatably installed on the preheating chamber 10, which is used to close and seal the preheating space.

[0045] It should be noted that the sealing door 13 is installed at the opening of the preheating chamber 10 via a rotating shaft, and can be opened and closed to seal or open the preheating space. The sealing door 13 is opened when materials enter or exit, and closed during normal operation to isolate the preheating space from the external environment. This reduces heat loss from the preheating space to the outside, maintains the temperature environment required for heat exchange, and also prevents cold air from entering and affecting the preheating effect, indirectly reducing the energy consumption of the heating zone.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cross-tandem material heat treatment equipment, characterized in that, It includes multiple heating devices connected in series; each heating device has a preheating space and a heating space; the preheating space has a feeding area and the heating space has a heating area; the preheating space also has a discharge area connected to the heating area; in two adjacent heating devices, the feeding area of ​​the preceding heating device is connected to the heating area of ​​the following heating device. In this process, the material in the feeding zone of the first heating device enters the heating zone of the second heating device; the material discharged from the heating zone of the second heating device moves to the discharge zone and exchanges heat with the material in the feeding zone.

2. The cross-tandem material heat treatment equipment as described in claim 1, characterized in that, Each of the heating devices includes: A preheating chamber has a preheating cavity that is open at one end, the preheating cavity being the preheating space; the preheating chamber is provided with a discharge port that communicates with the preheating cavity; A heating chamber, connected to the other end of the preheating chamber, has a heating cavity, which is the heating space; the heating chamber is provided with a feed inlet communicating with the heating cavity; A first conveying structure is disposed in the preheating chamber, with one end of it corresponding to the discharge port, and the area where the first conveying structure is located forms the feeding zone. A second conveying structure is disposed in the heating chamber, with one end corresponding to the feed inlet; the area where the second conveying structure is located forms the heating zone; A third conveying structure is disposed in the preheating chamber; one end of the third conveying structure corresponds to the opening of the preheating chamber, and the other end is connected to the other end of the second conveying structure; the area where the third conveying structure is located forms the discharge zone; A connecting box having a material transfer channel communicating with the discharge port, the connecting box being used to connect to a feed port on another adjacent heating device.

3. The cross-series material heat treatment equipment as described in claim 2, characterized in that, The preheating chamber and the heating chamber are spaced apart by a first direction, and the horizontal direction perpendicular to the first direction is a second direction. The first conveying structure includes: The first main transfer section is disposed inside the preheating chamber along the first direction; The first auxiliary transfer section is disposed inside the preheating box along the second direction and is connected to the first main transfer section; the first auxiliary transfer section corresponds to the discharge port.

4. The cross-series material heat treatment equipment as described in claim 3, characterized in that, The second conveying structure includes: The second main transmission section is disposed inside the heating chamber along the first direction; The second auxiliary transfer section is disposed inside the heating chamber along the second direction and is connected to the second main transfer section. The second auxiliary transfer section corresponds to the feed inlet.

5. The cross-tandem material heat treatment equipment as described in claim 4, characterized in that, The second main transmission segment is located at a higher height than the first main transmission segment or the first auxiliary transmission segment.

6. The cross-tandem material heat treatment equipment as described in claim 4, characterized in that, The third conveying structure includes: There are two third main transmission sections, which are located on both sides of the first main transmission section along the second direction; the two ends of the third main transmission section have a height difference that adapts to the first main transmission section and the second main transmission section. The third auxiliary transfer section is arranged inside the preheating chamber along the second direction, and its two ends are respectively connected to the two third main transfer sections. The third auxiliary transfer section is connected to the second main transfer section.

7. The cross-tandem material heat treatment equipment as described in claim 2, characterized in that, The connecting box is equipped with a fourth conveying structure, which is inclined and connected to the second conveying structure on the adjacent heating device.

8. The cross-tandem material heat treatment equipment as described in claim 2, characterized in that, The preheating chamber is also equipped with a cooling component, which is located on the third conveying structure and is used to cool the heat-treated material.

9. The cross-tandem material heat treatment equipment as described in claim 2, characterized in that, A sealing door is rotatably installed on the preheating chamber, which is used to close and seal the preheating space.

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