A continuous steel strip intelligent heat treatment device

Abstract

The present application relates to the technical field of steel strip heat treatment, and particularly relates to a continuous intelligent heat treatment equipment for steel strip, which comprises two conveyors, a quenching furnace, a tempering furnace and a sealing assembly, the sealing assembly comprises a plurality of air curtain units, a plurality of vertical sealing blocks, a plurality of vertical pressure units and a plurality of transverse sealing blocks; when the steel strip enters the quenching furnace and the tempering furnace, the air curtain units spray high-pressure gas to form air curtains at the inlet and outlet areas of the quenching furnace, so as to block the external air from entering the quenching furnace, at the same time, the vertical sealing blocks are in contact with the moving steel strip, and the contact pressure is adjusted through the vertical pressure units, so as to avoid that the steel strip cannot move due to excessive pressure when moving dynamically, and to form all-around wrapping sealing for the steel strip; thus, the air curtain is relied on to preliminarily block the air, and the all-around wrapping sealing is matched, so that the steel strip can be continuously heat treated.

Description

Technical Field

[0001] This invention relates to the field of steel strip heat treatment technology, and in particular to a continuous intelligent heat treatment device for steel strip. Background Technology

[0002] Currently, when performing heat treatment on steel strip, two processes, quenching and tempering, need to be completed sequentially. The specific operation process is as follows: the steel strip is placed in the quenching furnace, the inlet and outlet of the quenching furnace are sealed, and protective gas is introduced into the furnace to carry out the quenching operation; after the quenching operation is completed, the steel strip is conveyed by the conveyor to the tempering furnace for tempering treatment. During the tempering stage, the inlet and outlet of the tempering furnace are also sealed, and protective gas is introduced to complete the tempering process, thus completing the overall heat treatment operation of the steel strip.

[0003] In the aforementioned existing technical solutions, the steel strip must be shut down after entering the quenching furnace and tempering furnace, and the corresponding heat treatment operation can only be carried out after the furnace inlet and outlet are sealed. However, the traditional heat treatment process cannot achieve dynamic sealing during the steel strip conveying process, which means that the steel strip must go through the shutdown and sealing step every time it is heat treated. After the heat treatment operation is completed, the furnace inlet and outlet must be unsealed before the steel strip can be conveyed again. Ultimately, continuous heat treatment of the steel strip cannot be achieved, which seriously reduces the heat treatment efficiency of the steel strip. Summary of the Invention

[0004] The purpose of this invention is to provide a continuous intelligent heat treatment equipment for steel strips, which solves the problem that the traditional heat treatment process in the prior art cannot achieve dynamic sealing during the steel strip conveying process. As a result, the steel strip must go through a shutdown and sealing step every time it is heat treated. After the heat treatment operation is completed, the furnace inlet and outlet must be unsealed before the steel strip can be conveyed again. Ultimately, continuous heat treatment of steel strips cannot be achieved, which seriously reduces the heat treatment efficiency of steel strips.

[0005] To achieve the above objectives, the present invention provides a continuous intelligent heat treatment device for steel strips, comprising two conveyors, a quenching furnace, a tempering furnace, and a sealing assembly. The quenching furnace and the tempering furnace are sequentially arranged between the two conveyors, and steel strips are placed on the conveyors. The sealing assembly includes multiple air curtain units, multiple vertical sealing blocks, multiple vertical pressure units, and multiple transverse sealing blocks. The multiple air curtain units are symmetrically arranged at both ends of the quenching furnace and the tempering furnace. The multiple vertical pressure units are sequentially arranged inside the quenching furnace and the tempering furnace, and symmetrically distributed above and below the steel strip. The vertical sealing blocks are arranged on the vertical pressure units, and the multiple transverse sealing blocks are sequentially arranged on the inner sidewalls of the quenching furnace and the tempering furnace.

[0006] The sealing assembly further includes a hollow unit, which includes an oxygen sensor, a hollow exhaust port, and a hollow gas inlet. The quenching furnace and the tempering furnace are both provided with the hollow exhaust port and the hollow gas inlet. The oxygen sensor, the hollow exhaust port, and the hollow gas inlet are all located between two corresponding vertical sealing blocks.

[0007] The air curtain unit includes an air curtain mounting shell, two vertical air curtain mechanisms, and two air curtain sealing mechanisms. The air curtain mounting shell is located at one end of the quenching furnace, and the steel strip passes through the air curtain mounting shell. The two vertical air curtain mechanisms are respectively located above and below the steel strip, and the two air curtain sealing mechanisms are symmetrically located on both sides of the steel strip.

[0008] The vertical air curtain mechanism includes an air curtain inlet, a transfer trough, an air curtain outlet, two air pumps, and two air curtain return pipes. The air curtain mounting housing has an air curtain inlet chamber. The air curtain inlet is connected to the transfer trough, which is located outside the air curtain mounting housing. One end of the air curtain outlet is connected to the side of the transfer trough away from the air curtain inlet, and the other end of the air curtain outlet is located inside the air curtain inlet chamber. The two air pumps are symmetrically arranged on both sides of the transfer trough. One end of each of the two air curtain return pipes is connected to the inlet of the corresponding air pump, and the other end of each air curtain return pipe is connected to the air curtain mounting housing.

[0009] The air curtain sealing mechanism includes an air curtain sealing component and an air curtain sealing block. The air curtain sealing component is disposed on one side of the air curtain mounting shell. The output end of the air curtain sealing component passes through the air curtain mounting shell and is fixedly connected to the air curtain sealing block. The air curtain sealing block is in contact with one side of the steel strip.

[0010] The vertical pressure unit includes a vertical mounting shell, a vertical sliding block, two vertical adjustment mechanisms, a vertical moving plate, multiple springs, and multiple telescopic rods. The vertical mounting shell is disposed inside the quenching furnace. The vertical sliding block is slidably connected to the vertical mounting shell. A vertical sealing block is disposed at one end of the vertical sliding block and contacts the top of the steel strip. The two vertical adjustment mechanisms are symmetrically disposed inside the vertical mounting shell. The vertical moving plate is disposed on the two vertical adjustment mechanisms. The two ends of the multiple springs are movably connected to the vertical moving plate and the vertical sliding block, respectively. The two ends of the multiple telescopic rods are fixedly connected to the vertical moving plate and the vertical sliding block, respectively. The telescopic rods are located inside the springs.

[0011] The vertical pressure unit further includes a sealing guide block and multiple reinforcing air curtain tubes. The sealing guide block is located on the side of the vertical sealing block away from the hollow unit, and the multiple reinforcing air curtain tubes are sequentially arranged inside the vertical mounting shell.

[0012] The vertical adjustment mechanism includes a mounting component, an adjustment component, and a threaded rod. The mounting component is disposed on the inner side wall of the vertical mounting shell, the adjustment component is disposed above the mounting component, one end of the threaded rod is fixedly connected to the output end of the adjustment component, and the other end of the threaded rod is rotatably connected to the mounting component.

[0013] The sealing assembly further includes multiple sealing drive components and multiple auxiliary wheels. Multiple transverse sealing components are sequentially arranged on one side of the quenching furnace. The output ends of multiple sealing drive components all penetrate the quenching furnace and are fixedly connected to the corresponding transverse sealing blocks. The transverse sealing blocks are in contact with one side of the steel strip. Multiple auxiliary wheels are sequentially arranged inside the quenching furnace, the tempering furnace, and the corresponding air curtain mounting shell.

[0014] The continuous intelligent heat treatment equipment for steel strips also includes a control module and an operation panel, which are sequentially arranged on one side of the quenching furnace.

[0015] This invention discloses a continuous intelligent heat treatment device for steel strip. The steel strip is placed on an uncoiling machine, and then conveyed sequentially to a quenching furnace and a tempering furnace via a conveyor. After quenching and tempering, the strip is then conveyed to a rewinding machine for winding. When the steel strip enters the quenching and tempering furnaces, a high-pressure gas curtain unit sprays high-pressure gas at the inlet and outlet areas of the quenching furnace to form an air curtain, blocking external air from entering the furnace. Simultaneously, a vertical sealing block contacts the moving steel strip, and the contact pressure is adjusted by a vertical pressure unit to prevent excessive pressure during dynamic movement that could prevent the steel strip from moving. A transverse sealing block contacts and seals the sides of the steel strip, forming a comprehensive all-around seal. Thus, by relying on the air curtain for initial air blocking, combined with the comprehensive all-around seal, air sealing can be completed during the dynamic conveying of the steel strip, preventing external air from affecting quenching and tempering, allowing the steel strip to undergo continuous heat treatment and significantly improving heat treatment efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a structural schematic diagram of the continuous intelligent heat treatment equipment for steel strips according to the present invention.

[0018] Figure 2 This is a cross-sectional view of the continuous intelligent heat treatment equipment for steel strips according to the present invention.

[0019] Figure 3 This is the invention Figure 2 A sectional view along line AA.

[0020] Figure 4 This is the invention Figure 2 BB line section view.

[0021] Figure 5 This is the invention Figure 2 Enlarged view of the local structure at point C.

[0022] Figure 6 This is the invention Figure 2 Enlarged view of the local structure at point D.

[0023] 1-Conveyor, 2-Quenching furnace, 3-Tempering furnace, 4-Steel belt, 5-Vertical sealing block, 6-Horizontal sealing block, 7-Oxygen sensor, 8-Hollow exhaust port, 9-Hollow air outlet, 10-Air curtain mounting shell, 11-Air curtain inlet, 12-Transfer trough, 13-Air curtain outlet, 14-Air pump, 15-Air curtain return pipe, 16-Air curtain inlet chamber, 17-Air curtain sealing component, 18-Air curtain sealing block, 19-Vertical mounting shell, 20-Vertical sliding block, 21-Vertical moving plate, 22-Spring, 23-Telescopic rod, 24-Sealing guide block, 25-Reinforced air curtain tube, 26-Installation component, 27-Adjusting component, 28-Threaded rod, 29-Sealing drive component, 30-Auxiliary wheel, 31-Control module, 32-Operating panel. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0025] Please see Figures 1 to 6This invention provides a continuous intelligent heat treatment device for steel strip, comprising two conveyors 1, a quenching furnace 2, a tempering furnace 3, and a sealing assembly. The quenching furnace 2 and the tempering furnace 3 are sequentially arranged between the two conveyors 1. A steel strip 4 is placed on the conveyor 1. The sealing assembly includes multiple air curtain units, multiple vertical sealing blocks 5, multiple vertical pressure units, and multiple transverse sealing blocks 6. The multiple air curtain units are symmetrically arranged at both ends of the quenching furnace 2 and the tempering furnace 3. The multiple vertical pressure units are sequentially arranged inside the quenching furnace 2 and the tempering furnace 3, and symmetrically distributed above and below the steel strip 4. The vertical sealing blocks 5 are arranged on the vertical pressure units. The multiple transverse sealing blocks 6 are sequentially arranged on the inner sidewalls of the quenching furnace 2 and the tempering furnace 3.

[0026] In this embodiment, the steel strip 4 is placed on the unwinding machine, and then the steel strip 4 is sequentially conveyed to the quenching furnace 2 and the tempering furnace 3 by the conveyor 1. After quenching and tempering, it is then conveyed to the winding machine for winding. When the steel strip 4 enters the quenching furnace 2 and the tempering furnace 3, the air curtain unit sprays high-pressure gas at the inlet and outlet areas of the quenching furnace 2 to form an air curtain, blocking external air from entering the quenching furnace 2. At the same time, the vertical sealing block 5 contacts the moving steel strip 4, and the contact pressure is adjusted by the vertical pressure unit to avoid excessive pressure during dynamic movement that would prevent the steel strip 4 from moving. The transverse sealing block 6 contacts and seals the side of the steel strip 4, forming an all-round enveloping seal for the steel strip 4. Thus, by relying on the air curtain for initial air blocking, combined with the all-round enveloping seal, air sealing can be completed during the dynamic conveying of the steel strip 4, preventing external air from affecting quenching and tempering, allowing the steel strip 4 to undergo continuous heat treatment, and significantly improving heat treatment efficiency.

[0027] Furthermore, the sealing assembly also includes a hollow unit, which includes an oxygen sensor 7, a hollow exhaust port 8, and a hollow gas supply port 9. The quenching furnace 2 and the tempering furnace 3 are both provided with the hollow exhaust port 8 and the hollow gas supply port 9. The oxygen sensor 7, the hollow exhaust port 8, and the hollow gas supply port 9 are all disposed between the corresponding two vertical sealing blocks 5.

[0028] In this embodiment, the oxygen sensor 7 can monitor the oxygen content of the two vertically mounted shells 19 in real time. When the oxygen concentration exceeds the standard, the mixed air is extracted through the hollow exhaust port 8, and then protective gas is replenished through the hollow gas inlet 9 to ensure a stable inert gas environment inside the furnace and prevent oxidation of the steel strip 4 during heat treatment. Thus, the hollow unit is set between the two vertical sealing blocks 5. By continuously extracting oxygen, a hollow layer composed of protective gas can be formed inside the quenching furnace and between the gas curtain, thereby isolating the internal heat treatment area from the outside. Combined with the contact and fit of the vertical sealing blocks, the reliability of the dynamic seal can be further improved.

[0029] Furthermore, the air curtain unit includes an air curtain mounting shell 10, two vertical air curtain mechanisms, and two air curtain sealing mechanisms. The air curtain mounting shell 10 is disposed at one end of the quenching furnace 2, and the steel strip 4 passes through the air curtain mounting shell 10. The two vertical air curtain mechanisms are respectively disposed above and below the steel strip 4, and the two air curtain sealing mechanisms are symmetrically disposed on both sides of the steel strip 4.

[0030] In this embodiment, the air curtain mounting shell 10 provides a mounting carrier for the vertical air curtain mechanism and the air curtain sealing mechanism, ensuring a compact layout of each component; the two vertical air curtain mechanisms spray high-pressure gas from above and below the steel strip 4, and the two air curtain sealing mechanisms seal from both sides, forming a three-dimensional air curtain structure of "top and bottom + both sides". Compared with a single-direction air curtain, it can more comprehensively block the entry of external air, laying the foundation for subsequent wrapping and sealing.

[0031] Further, the vertical air curtain mechanism includes an air curtain inlet 11, a transfer trough 12, an air curtain outlet 13, two air pumps 14, and two air curtain return pipes 15. The air curtain mounting housing 10 has an air curtain inlet chamber 16. The air curtain inlet 11 is connected to the transfer trough 12, which is located outside the air curtain mounting housing 10. One end of the air curtain outlet 13 is connected to the side of the transfer trough 12 away from the air curtain inlet 11, and the other end of the air curtain outlet 13 is located inside the air curtain inlet chamber 16. The two air pumps 14 are symmetrically arranged on both sides of the transfer trough 12. One end of each of the two air curtain return pipes 15 is connected to the inlet of the corresponding air pump 14, and the other end of each air curtain return pipe 15 is connected to the air curtain mounting housing 10.

[0032] In this embodiment, high-pressure gas enters the transfer tank 12 through the air curtain inlet 11 for buffering and stabilization, and is then sent into the air curtain inlet chamber 16 through the air curtain outlet 13, where it is evenly sprayed out to form an air curtain. The two air pumps 14 recover the gas overflowing from the air curtain through the air curtain return pipe 15, realizing gas recycling and saving gas consumption. At the same time, the circulating airflow can enhance the stability of the air curtain and avoid sealing failure caused by air pressure fluctuations.

[0033] Furthermore, the air curtain sealing mechanism includes an air curtain sealing component 17 and an air curtain sealing block 18. The air curtain sealing component 17 is disposed on one side of the air curtain mounting shell 10. The output end of the air curtain sealing component 17 passes through the air curtain mounting shell 10 and is fixedly connected to the air curtain sealing block 18. The air curtain sealing block 18 is in contact with one side of the steel strip 4.

[0034] In this embodiment, the air curtain sealing component 17 can drive the air curtain sealing block 18 to precisely fit the side of the steel belt 4, filling the sealing gap of the air curtain on the side, forming a double protection of air curtain and contact seal; the air curtain sealing block 18 is made of flexible wear-resistant material, which not only ensures the sealing effect, but also avoids scratching the surface of the steel belt 4, and adapts to the dynamic movement of the steel belt 4.

[0035] Further, the vertical pressure unit includes a vertical mounting shell 19, a vertical sliding block 20, two vertical adjustment mechanisms, a vertical moving plate 21, multiple springs 22, and multiple telescopic rods 23. The vertical mounting shell 19 is disposed inside the quenching furnace 2. The vertical sliding block 20 is slidably connected to the vertical mounting shell 19. The vertical sealing block 5 is disposed at one end of the vertical sliding block 20 and contacts the upper part of the steel strip 4. The two vertical adjustment mechanisms are symmetrically disposed inside the vertical mounting shell 19. The vertical moving plate 21 is disposed on the two vertical adjustment mechanisms. The two ends of the multiple springs 22 are movably connected to the vertical moving plate 21 and the vertical sliding block 20, respectively. The two ends of the multiple telescopic rods 23 are fixedly connected to the vertical moving plate 21 and the vertical sliding block 20, respectively. The telescopic rods 23 are located inside the springs 22.

[0036] In this embodiment, multiple springs 22 provide elastic pressure, ensuring that the vertical sealing block 5 always adheres to the surface of the steel strip 4, while buffering the impact force during the dynamic movement of the steel strip 4, preventing excessive pressure from hindering the conveying process; multiple telescopic rods 23 limit the deformation direction of the springs 22, ensuring the smooth movement of the vertical sliding block 20; the vertical adjustment mechanism can adjust the position of the vertical moving plate 21. After adjusting the position, the contact pressure between the springs 22 and the steel strip 4 will change, thereby precisely controlling the contact pressure of the vertical sealing block 5 on the steel strip 4, adapting to steel strips 4 of different thicknesses.

[0037] Furthermore, the vertical pressure unit also includes a sealing guide block 24 and a plurality of reinforcing air curtain tubes 25. The sealing guide block 24 is disposed on the side of the vertical sealing block 5 away from the hollow unit, and the plurality of reinforcing air curtain tubes 25 are sequentially disposed inside the vertical mounting shell 19.

[0038] In this embodiment, when gas approaches the vertical sealing block 5, the sealing guide block 24 can guide the gas flow at an angle, so that the gas will not accumulate at the overlap between the vertical sealing block 5 and the steel belt 4, reducing the possibility of gas reaching the furnace body through the overlap and further enhancing the sealing effect; the gas ejected from the multiple reinforcing air curtain pipes 25 can supplement the air curtain pressure and form a secondary air curtain around the vertical sealing block 5, further blocking air infiltration, which is especially suitable for dynamic sealing scenarios when the steel belt 4 is conveyed at high speed.

[0039] Furthermore, the vertical adjustment mechanism includes a mounting component 26, an adjustment component 27, and a threaded rod 28. The mounting component 26 is disposed on the inner side wall of the vertical mounting shell 19, the adjustment component 27 is disposed above the mounting component 26, one end of the threaded rod 28 is fixedly connected to the output end of the adjustment component 27, and the other end of the threaded rod 28 is rotatably connected to the mounting component 26.

[0040] In this embodiment, the adjusting component 27 drives the threaded rod 28 to rotate, and drives the vertical moving plate 21 to rise and fall through the threaded transmission, thereby achieving precise fine adjustment of the contact pressure. The threaded transmission has a self-locking function, which can ensure the stability of the position of the vertical moving plate 21, avoid pressure deviation during heat treatment, and ensure the consistency of the sealing effect. The mounting component 26 provides a stable support for the adjusting component 27 and the threaded rod 28, improving the reliability of the mechanism operation.

[0041] Furthermore, the sealing assembly also includes multiple sealing drive components 29 and multiple auxiliary wheels 30. The multiple sealing drive components 29 are sequentially arranged on one side of the quenching furnace 2. The output ends of the multiple sealing drive components 29 all penetrate the quenching furnace 2 and are respectively fixedly connected to the corresponding transverse sealing block 6. The transverse sealing block 6 contacts one side of the steel strip 4. The multiple auxiliary wheels 30 are sequentially arranged inside the quenching furnace 2, the tempering furnace 3 and the corresponding air curtain mounting shell 10.

[0042] In this embodiment, multiple sealing drive components 29 drive the corresponding transverse sealing blocks 6 to adhere to both sides of the steel belt 4, forming a full-coverage seal with the vertical sealing blocks 5. As the steel belt 4 moves continuously under the action of the conveyor 1 and passes the auxiliary wheels 30, the multiple auxiliary wheels 30 provide support and rotate synchronously with the friction of the steel belt 4, converting sliding friction into rolling friction. This significantly reduces the resistance of the steel belt 4 during conveying, avoids conveying jams due to sealing contact, and ensures the smoothness of continuous heat treatment. At the same time, the auxiliary wheels 30 can guide the steel belt 4 to ensure its conveying trajectory is stable.

[0043] Furthermore, the continuous intelligent heat treatment equipment for steel strip also includes a control module 31 and an operation panel 32, which are sequentially arranged on one side of the quenching furnace 2.

[0044] In this embodiment, the control module 31 can receive the detection data from the oxygen sensor 7 and automatically control the operation of the hollow exhaust port 8, the hollow gas inlet 9, and each sealing mechanism to achieve intelligent sealing adjustment. The operator can manually set parameters such as sealing pressure and gas flow rate through the operation panel 32 and monitor the equipment's operating status in real time. The combination of the two enables the equipment to have both automatic control and manual adjustment functions, adapt to different heat treatment process requirements, and improve the ease of operation and the level of equipment intelligence.

[0045] When using the continuous intelligent heat treatment equipment for steel strip in this embodiment, the steel strip 4 is placed on the uncoiling machine, and then the steel strip 4 is sequentially conveyed to the quenching furnace 2 and the tempering furnace 3 by the conveyor 1. After quenching and tempering, it is then conveyed to the coiling machine for coiling. When the steel strip 4 enters the quenching furnace 2 and the tempering furnace 3, the air curtain unit sprays high-pressure gas in the inlet and outlet areas of the quenching furnace 2 to form an air curtain, blocking the entry of external air into the quenching furnace 2. At the same time, the vertical sealing block 5 contacts the moving steel strip 4, and the contact pressure is adjusted by the vertical pressure unit to avoid excessive pressure during dynamic movement, which would prevent the steel strip 4 from moving. The transverse sealing block 6 contacts and seals the side of the steel strip 4, forming an all-round wrapping seal for the steel strip 4. With the above-mentioned structural setup, the air curtain provides initial air blocking, and the all-round wrapping and sealing can complete the air sealing during the dynamic conveying of the steel strip 4, avoiding the influence of external air on quenching and tempering, so that the steel strip 4 can be continuously heat-treated, significantly improving the heat treatment efficiency.

[0046] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A continuous intelligent heat treatment device for steel strip, comprising two conveyors, a quenching furnace, and a tempering furnace, wherein the quenching furnace and the tempering furnace are sequentially arranged between the two conveyors, and a steel strip is placed on the conveyors, characterized in that, It also includes sealing components; The sealing assembly includes multiple air curtain units, multiple vertical sealing blocks, multiple vertical pressure units, and multiple transverse sealing blocks. The multiple air curtain units are symmetrically arranged at both ends of the quenching furnace and the tempering furnace. The multiple vertical pressure units are sequentially arranged inside the quenching furnace and the tempering furnace, and symmetrically distributed above and below the steel strip. The vertical sealing blocks are arranged on the vertical pressure units, and the multiple transverse sealing blocks are sequentially arranged on the inner sidewalls of the quenching furnace and the tempering furnace.

2. The continuous intelligent heat treatment equipment for steel strips as described in claim 1, characterized in that, The sealing assembly further includes a hollow unit, which includes an oxygen sensor, a hollow exhaust port, and a hollow gas inlet. The quenching furnace and the tempering furnace are both provided with the hollow exhaust port and the hollow gas inlet. The oxygen sensor, the hollow exhaust port, and the hollow gas inlet are all located between two corresponding vertical sealing blocks.

3. The continuous intelligent heat treatment equipment for steel strips as described in claim 2, characterized in that, The air curtain unit includes an air curtain mounting shell, two vertical air curtain mechanisms, and two air curtain sealing mechanisms. The air curtain mounting shell is located at one end of the quenching furnace, and the steel strip passes through the air curtain mounting shell. The two vertical air curtain mechanisms are respectively located above and below the steel strip, and the two air curtain sealing mechanisms are symmetrically located on both sides of the steel strip.

4. The continuous intelligent heat treatment equipment for steel strips as described in claim 3, characterized in that, The vertical air curtain mechanism includes an air curtain inlet, a transfer trough, an air curtain outlet, two air pumps, and two air curtain return pipes. The air curtain mounting housing has an air curtain inlet chamber. The air curtain inlet is connected to the transfer trough, which is located outside the air curtain mounting housing. One end of the air curtain outlet is connected to the side of the transfer trough away from the air curtain inlet, and the other end of the air curtain outlet is located inside the air curtain inlet chamber. The two air pumps are symmetrically arranged on both sides of the transfer trough. One end of each of the two air curtain return pipes is connected to the inlet of the corresponding air pump, and the other end of each air curtain return pipe is connected to the air curtain mounting housing.

5. The continuous intelligent heat treatment equipment for steel strips as described in claim 4, characterized in that, The air curtain sealing mechanism includes an air curtain sealing component and an air curtain sealing block. The air curtain sealing component is disposed on one side of the air curtain mounting shell. The output end of the air curtain sealing component passes through the air curtain mounting shell and is fixedly connected to the air curtain sealing block. The air curtain sealing block is in contact with one side of the steel strip.

6. The continuous intelligent heat treatment equipment for steel strips as described in claim 5, characterized in that, The vertical pressure unit includes a vertical mounting shell, a vertical sliding block, two vertical adjustment mechanisms, a vertical moving plate, multiple springs, and multiple telescopic rods. The vertical mounting shell is disposed inside the quenching furnace. The vertical sliding block is slidably connected to the vertical mounting shell. The vertical sealing block is disposed at one end of the vertical sliding block and contacts the top of the steel strip. The two vertical adjustment mechanisms are symmetrically disposed inside the vertical mounting shell. The vertical moving plate is disposed on the two vertical adjustment mechanisms. The two ends of the multiple springs are movably connected to the vertical moving plate and the vertical sliding block, respectively. The two ends of the multiple telescopic rods are fixedly connected to the vertical moving plate and the vertical sliding block, respectively. The telescopic rods are located inside the springs.

7. The continuous intelligent heat treatment equipment for steel strips as described in claim 6, characterized in that, The vertical pressure unit also includes a sealing guide block and multiple reinforcing air curtain tubes. The sealing guide block is located on the side of the vertical sealing block away from the hollow unit, and the multiple reinforcing air curtain tubes are sequentially arranged inside the vertical mounting shell.

8. The continuous intelligent heat treatment equipment for steel strips as described in claim 7, characterized in that, The vertical adjustment mechanism includes a mounting component, an adjustment component, and a threaded rod. The mounting component is disposed on the inner side wall of the vertical mounting shell, the adjustment component is disposed above the mounting component, one end of the threaded rod is fixedly connected to the output end of the adjustment component, and the other end of the threaded rod is rotatably connected to the mounting component.

9. The continuous intelligent heat treatment equipment for steel strips as described in claim 8, characterized in that, The sealing assembly also includes multiple sealing drive components and multiple auxiliary wheels. The multiple transverse sealing components are sequentially arranged on one side of the quenching furnace. The output ends of the multiple sealing drive components all pass through the quenching furnace and are respectively fixedly connected to the corresponding transverse sealing blocks. The transverse sealing blocks are in contact with one side of the steel strip. The multiple auxiliary wheels are sequentially arranged inside the quenching furnace, the tempering furnace and the corresponding air curtain mounting shell.

10. The continuous intelligent heat treatment equipment for steel strips as described in claim 9, characterized in that, The continuous intelligent heat treatment equipment for steel strips also includes a control module and an operation panel, which are sequentially arranged on one side of the quenching furnace.

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