Energy-saving and environment-friendly annealing furnace for stainless steel blank pipe

Abstract

The utility model discloses an energy-saving and environment-friendly annealing furnace for a stainless steel blank pipe, which comprises an annealing furnace, a hot gas recovery box arranged on the side surface of the annealing furnace, a hydraulic cylinder fixedly mounted on the annealing furnace, a movable plate fixedly connected with one end of the hydraulic cylinder, a motor I fixedly mounted on the side surface of the movable plate, and a rotating shaft fixedly connected with one end of the motor I, a notch is formed in the bottom of the fixed plate; the outer side of the rotating shaft is fixedly connected with a placement frame I; a placement groove is formed in the placement frame I; the side surface of the movable plate is fixedly connected with a limiting ring; the first motor drives the rotating shaft and the placing plate to rotate, the capacity of the whole device for steel pipes is increased, the annealing efficiency is improved, the second motor enables the connecting shaft to drive the rotating plate to rotate, the telescopic rod enables the steel pipes to move upwards, and the difficulty of placing and taking the steel pipes is reduced.

Description

Technical Field

[0001] This utility model relates to the field of annealing furnace technology, specifically to an energy-saving and environmentally friendly annealing furnace for stainless steel billets. Background Technology

[0002] Annealing is a metal heat treatment process in which metal parts are slowly heated to a certain temperature in an annealing furnace, held at that temperature for a period of time, and then cooled at a suitable rate. Steel pipe annealing is a heat treatment method in which steel pipes are heated to a temperature at which a phase transformation or partial phase transformation occurs, held at that temperature, and then slowly cooled. The purpose of annealing is to eliminate structural defects, improve the microstructure to homogenize the composition and refine the grains, improve the mechanical properties of the steel, reduce hardness, increase plasticity and toughness, improve machinability, and prepare for subsequent processes.

[0003] To reduce heat loss when steel pipes are removed or placed in, patent CN220317897 U discloses an energy-saving and environmentally friendly annealing furnace for stainless steel billets. The patent includes an annealing furnace body, a steel pipe annealing sleeve, and a steel pipe feeding machine. The patent uses a spring to seal the annealing sleeve, preventing heat loss from the inside of the annealing furnace.

[0004] However, the aforementioned patent requires staff to manually place and retrieve the steel pipes, which is easy to cause burns and the operation is inconvenient, posing a safety hazard. In addition, the aforementioned patent uses the elasticity of a spring to remove the steel pipes from the annealing furnace, which increases the difficulty of annealing the steel pipes. Utility Model Content

[0005] The purpose of this invention is to provide an energy-saving and environmentally friendly annealing furnace for stainless steel billets, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving and environmentally friendly annealing furnace for stainless steel billets, comprising an annealing furnace, a heat recovery box provided on the side of the annealing furnace, a hydraulic cylinder fixedly mounted on the annealing furnace, one end of the hydraulic cylinder fixedly connected to a moving plate, a motor fixedly mounted on the side of the moving plate, one end of the motor fixedly connected to a rotating shaft, one end of the rotating shaft rotatably connected to a fixed plate, a limiting groove provided on the outer side of the fixed plate, a notch provided at the bottom of the fixed plate, a placement rack fixedly connected to the outer side of the rotating shaft, a placement groove provided on the placement rack, a limiting ring fixedly connected to the side of the moving plate, a placement rack fixedly connected to the outer side of the rotating shaft, a connecting plate fixedly connected to the bottom of the annealing furnace, a feeding rack fixedly connected to the connecting plate, a steel pipe body provided on the feeding rack, a motor fixedly mounted on the side of the connecting plate, the output end of the motor fixedly connected to a connecting shaft, a rotating plate fixedly connected to the outer side of the connecting shaft, a material taking plate provided on the connecting plate, a telescopic rod fixedly mounted on the surface of the connecting plate, and a lifting plate fixedly connected to the top of the telescopic rod.

[0007] Preferably, the annealing furnace has an annealing chamber inside, the hydraulic cylinders are located on both sides of the annealing chamber, and the fixing plate is slidably engaged with the inside of the annealing chamber.

[0008] Preferably, the first placement rack and the second placement rack are located at the two ends of the rotating shaft, the placement slots are evenly distributed in a circumferential array on the outer side of the first placement rack, and a gap is provided between the first placement rack and the inner wall of the fixing plate.

[0009] Preferably, the outer diameters of the limiting ring and the fixing plate are the same, and the bottom of the limiting ring also has a notch for the movement of the steel pipe.

[0010] Preferably, a rectangular through hole is formed on the connecting plate, the connecting shaft is rotatably connected to the rectangular through hole, the rotating plate is located inside the rectangular through hole, and the rotating plates are distributed in a circular array on the outside of the connecting shaft.

[0011] Preferably, both the feeding rack and the picking plate are provided with inclined surfaces, and a limiting plate is provided at one end of the feeding rack and the picking plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model utilizes a moving plate, a rotating shaft, a fixed plate, a limiting groove, a notch, a placement rack, and a placement slot. By placing steel pipes in the placement slot, a motor drives the rotating shaft and placement plate to rotate, allowing multiple steel pipes to be placed one by one. This increases the number of steel pipes that can be annealed by the overall device and improves the annealing efficiency. Subsequently, a second motor causes the connecting shaft to rotate the rotating plate, moving the steel pipes on the picking plate to the surface of the lifting plate. A telescopic rod moves the steel pipes upwards, passing them through the notch and into the placement hole. This effectively reduces the difficulty of placing and retrieving steel pipes, enhances the practical use effect, and improves the safety of the overall device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the placement rack and the movable plate of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the fixed ring and the movable plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the connecting plate structure of this utility model.

[0018] In the diagram: 1. Annealing furnace; 2. Heat recovery box; 3. Hydraulic cylinder; 4. Moving plate; 5. Motor 1; 6. Rotating shaft; 7. Fixed plate; 8. Limiting groove; 9. Notch; 10. Placement rack 1; 11. Placement groove; 12. Limiting ring; 13. Placement rack 2; 14. Connecting plate; 15. Feeding rack; 16. Steel pipe body; 17. Motor 2; 18. Connecting shaft; 19. Rotating plate; 20. Material picking plate; 21. Telescopic rod; 22. Lifting plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: an energy-saving and environmentally friendly annealing furnace for stainless steel billets, including an annealing furnace 1, a heat recovery box 2 on the side of the annealing furnace 1, the annealing furnace 1 being connected and fixed to a hydraulic cylinder 3 by bolts, the output end of the hydraulic cylinder 3 being welded and fixed to the side of a moving plate 4, the side of the moving plate 4 being connected and fixed to a motor 5, one end of the motor 5 being welded and fixed to a rotating shaft 6, one end of the rotating shaft 6 being rotatably connected to a fixed plate 7, a limiting groove 8 being provided on the outer side of the fixed plate 7, a notch 9 being provided at the bottom of the fixed plate 7, the outer side of the rotating shaft 6 being welded and fixed to a placement rack 10, and a placement groove 1 being provided on the placement rack 10. 1. The side of the moving plate 4 is welded and fixed to the limiting ring 12. The outer side of the rotating shaft 6 is welded and fixed to the second placement frame 13. The bottom of the annealing furnace 1 is welded and fixed to the connecting plate 14. The connecting plate 14 is welded and fixed to the feeding rack 15. A steel pipe body 16 is installed on the feeding rack 15. The side of the connecting plate 14 is connected and fixed to two symmetrical motors 17. The output end of the motors 17 is welded and fixed to the connecting shaft 18. The outer side of the connecting shaft 18 is welded and fixed to the rotating plate 19. A material picking plate 20 is installed on the connecting plate 14. A telescopic rod 21 is installed on the surface of the connecting plate 14. The top of the telescopic rod 21 is welded and fixed to the lifting plate 22.

[0021] An annealing furnace 1 has an annealing chamber inside, with hydraulic cylinders 3 located on both sides of the chamber. A fixed plate 7 slides within the annealing chamber, and a limiting rod is installed inside. The fixed plate 7 is slidably connected to the limiting rod via a limiting groove 8. This ensures the stability of the fixed plate 7 during movement and enhances the stability of the steel pipe placed on it. The fixed plate 7 can also block the round hole in the annealing chamber on the side of the furnace 1, preventing heat loss from the furnace and effectively reducing heat dissipation when the steel pipe is placed inside.

[0022] Placement rack 10 and placement rack 2 13 are located at both ends of the rotating shaft 6. Placement slots 11 are evenly distributed in a circular array on the outside of placement rack 10. A gap is provided between placement rack 10 and the inner wall of fixing plate 7. The placement slots 11 are arc-shaped slots, and the placement slots 11 fit against the outside of the steel pipe through the arc-shaped slots. At the same time, the steel pipe is located inside the placement slots 11 between fixing plate 7 and placement rack 10. The fixing plate 7 limits the steel pipe within the placement slots 11. The fixing plates 7 and the moving plates 4 at both ends further limit the two ends of the steel pipe.

[0023] The limiting ring 12 and the fixing plate 7 have the same outer diameter. The bottom of the limiting ring 12 also has a notch 9 for the movement of the steel pipe. A rectangular through hole is opened on the connecting plate 14. The connecting shaft 18 is rotatably connected to the rectangular through hole. The rotating plate 19 is located inside the rectangular through hole and is arranged in a circular array outside the connecting shaft 18. Both the feeding rack 15 and the picking plate 20 are provided with inclined surfaces. A limiting plate is provided at one end of the feeding rack 15 and the picking plate 20. Two motors 17 are provided on the connecting plate 14 and are respectively close to the feeding rack 15 and the picking plate 20. The connecting shaft 18 and the rotating plate 19 are rotated by the motor 17 on one side, so that the steel pipe on the feeding rack 15 can be placed on the surface of the lifting plate 22. The lifting plate 22 can push the steel pipe up and place it in the placement slot 11. Similarly, the rotating plate 19 is rotated by the motor 17 on the other side to take out the annealed steel pipe on the lifting plate 22.

[0024] Working principle: In use, the steel pipe is placed on the feeding rack 15. The motor 17 causes the connecting shaft 18 and the rotating plate 19 to rotate. When the rotating plate 19 rotates to the bottom of the steel pipe, it moves the steel pipe between the two rotating plates 19. As the rotating plate 19 moves further, the steel pipe moves to the surface of the lifting plate 22. Then, the telescopic rod 21 causes the lifting plate 22 to move the steel pipe upward and through the notch 9 into the placement slot 11. The motor 5 causes the rotating shaft 6 to drive the placement rack 10 and placement rack 23 to rotate synchronously. The rotation of placement rack 10 causes the steel pipe to move inside the fixed plate 7. The fixed plate 7 and the limiting ring 12 control the two ends of the steel pipe. The limit switch prevents the steel pipe from falling off during movement. The rotation of the second placement rack 13 moves the subsequent placement slot 11 above the notch 9 for the placement of the next steel pipe. After the steel pipe is placed, the hydraulic cylinder 3 moves the moving plate 4, which places the steel pipe inside the annealing furnace 1 for annealing. After the annealing is completed, the motor 5 rotates the first placement rack 10 and the second placement rack 13. When the placement slot 11 is aligned with the notch 9, the steel pipe inside the placement slot 11 falls through the notch 9 onto the surface of the lifting plate 22. Then, the motor 17 on the other side drives the rotating plate 19 to rotate, so that the annealed steel pipe is moved onto the picking plate 20.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Energy-saving and environment-friendly annealing furnace for stainless steel blank tube, comprising an annealing furnace (1), characterized in that: The annealing furnace (1) is provided with a heat recovery tank (2) on the side, a hydraulic cylinder (3) is fixedly installed on the annealing furnace (1), one end of the hydraulic cylinder (3) is fixedly connected with a moving plate (4), a motor (5) is fixedly installed on the side of the moving plate (4), one end of the motor (5) is fixedly connected with a rotating shaft (6), one end of the rotating shaft (6) is rotatably connected with a fixed plate (7), a limiting groove (8) is formed in the outer side of the fixed plate (7), a notch (9) is formed in the bottom of the fixed plate (7), the outer side of the rotating shaft (6) is fixedly connected with a placing rack (10), a placing groove (11) is formed in the placing rack (10), the side of the moving plate (4) is fixedly connected with a limiting ring (12), the outer side of the rotating shaft (6) is fixedly connected with a placing rack (13), the bottom of the annealing furnace (1) is fixedly connected with a connecting plate (14), the connecting plate (14) is fixedly connected with a feeding rack (15), a steel pipe body (16) is arranged on the feeding rack (15), a motor (17) is fixedly installed on the side of the connecting plate (14), the output end of the motor (17) is fixedly connected with a connecting shaft (18), the outer side of the connecting shaft (18) is fixedly connected with a rotating plate (19), a material taking plate (20) is arranged on the connecting plate (14), a telescopic rod (21) is fixedly installed on the surface of the connecting plate (14), and the top of the telescopic rod (21) is fixedly connected with a lifting plate (22).

2. The energy-saving and environment-friendly annealing furnace for stainless steel blank tube according to claim 1, characterized in that: The annealing furnace (1) is provided with a heat recovery tank (2) on the side, a hydraulic cylinder (3) is fixedly installed on the annealing furnace (1), one end of the hydraulic cylinder (3) is fixedly connected with a moving plate (4), a motor (5) is fixedly installed on the side of the moving plate (4), one end of the motor (5) is fixedly connected with a rotating shaft (6), one end of the rotating shaft (6) is rotatably connected with a fixed plate (7), a limiting groove (8) is formed in the outer side of the fixed plate (7), a notch (9) is formed in the bottom of the fixed plate (7), the outer side of the rotating shaft (6) is fixedly connected with a placing rack (10), a placing groove (11) is formed in the placing rack (10), the side of the moving plate (4) is fixedly connected with a limiting ring (12), the outer side of the rotating shaft (6) is fixedly connected with a placing rack (13), the bottom of the annealing furnace (1) is fixedly connected with a connecting plate (14), the connecting plate (14) is fixedly connected with a feeding rack (15), a steel pipe body (16) is arranged on the feeding rack (15), a motor (17) is fixedly installed on the side of the connecting plate (14), the output end of the motor (17) is fixedly connected with a connecting shaft (18), the outer side of the connecting shaft (18) is fixedly connected with a rotating plate (19), a material taking plate (20) is arranged on the connecting plate (14), a telescopic rod (21) is fixedly installed on the surface of the connecting plate (14), and the top of the telescopic rod (21) is fixedly connected with a lifting plate (22).

3. The energy-saving and environment-friendly annealing furnace for stainless steel blank tube according to claim 1, characterized in that: The annealing furnace (1) is provided with a heat recovery tank (2) on the side, a hydraulic cylinder (3) is fixedly installed on the annealing furnace (1), one end of the hydraulic cylinder (3) is fixedly connected with a moving plate (4), a motor (5) is fixedly installed on the side of the moving plate (4), one end of the motor (5) is fixedly connected with a rotating shaft (6), one end of the rotating shaft (6) is rotatably connected with a fixed plate (7), a limiting groove (8) is formed in the outer side of the fixed plate (7), a notch (9) is formed in the bottom of the fixed plate (7), the outer side of the rotating shaft (6) is fixedly connected with a placing rack (10), a placing groove (11) is formed in the placing rack (10), the side of the moving plate (4) is fixedly connected with a limiting ring (12), the outer side of the rotating shaft (6) is fixedly connected with a placing rack (13), the bottom of the annealing furnace (1) is fixedly connected with a connecting plate (14), the connecting plate (14) is fixedly connected with a feeding rack (15), a steel pipe body (16) is arranged on the feeding rack (15), a motor (17) is fixedly installed on the side of the connecting plate (14), the output end of the motor (17) is fixedly connected with a connecting shaft (18), the outer side of the connecting shaft (18) is fixedly connected with a rotating plate (19), a material taking plate (20) is arranged on the connecting plate (14), a telescopic rod (21) is fixedly installed on the surface of the connecting plate (14), and the top of the telescopic rod (21) is fixedly connected with a lifting plate (22).

4. The energy-saving and environment-friendly annealing furnace for stainless steel blank tube according to claim 1, characterized in that: ​ 5. The energy-saving and environment-friendly annealing furnace for stainless steel blank tube according to claim 1, characterized in that: ​ 6. The energy-saving and environment-friendly annealing furnace for stainless steel blank tube according to claim 1, characterized in that: ​

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