Annealing furnace for non-oriented silicon steel production

Abstract

The utility model relates to the production technology field of non-oriented silicon steel, disclose annealing furnace for non-oriented silicon steel production, including furnace body, the furnace body lateral wall rotation is connected with furnace door, the furnace body lateral wall is provided with the limit component, the furnace body top is provided with the afterheat utilization component, the furnace body inside is provided with heating device, the limit component includes the installation box of fixed connection in the furnace body lateral wall, the installation box lateral wall rotation is connected with the knob, the knob lateral wall fixed connection has the gear, the gear bottom clamping has the clamping block, the clamping block bottom rotation is connected with the pull rod, the pull rod surface is equipped with the spring, the gear inside fixed connection has the rotation rod, the rotation rod surface fixed connection has the limit rod. In the utility model, through the structural setting of limit component, solved the problem of the size difference of silicon steel in the prior art, easy to occur inclination, make silicon steel mutual adhesion between, influence product quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of non-oriented silicon steel production technology, and in particular to an annealing furnace for non-oriented silicon steel production. Background Technology

[0002] With the increasing demands for the performance of non-oriented silicon steel in fields such as new energy vehicles and high-efficiency motors, multiple breakthroughs are needed to achieve high magnetic induction, low iron loss and high strength. In addition, as products develop towards higher specifications, traditional production processes can no longer meet the requirements. Against this background, annealing furnaces for the production of non-oriented silicon steel have emerged, providing key technical support for the production of high-performance silicon steel materials through innovative temperature control and heat treatment processes.

[0003] Existing annealing furnaces for non-oriented silicon steel production utilize precise thermal control as their core technology, achieving material performance innovation through a sophisticated three-stage temperature curve. In the heating stage, the silicon steel is heated to 600-800℃ at a precise rate, activating atomic activity and breaking down the misaligned entanglements formed during cold rolling. During the holding process, recrystallization of the grains is promoted in a constant temperature field, reconstructing the ordered magnetic domain structure. In the cooling stage, the temperature is gradually reduced to room temperature through a gradient cooling curve, avoiding the accumulation of internal stress and ensuring a uniform and dense internal structure of the silicon steel. Ultimately, this endows it with excellent magnetic permeability and low iron loss characteristics, meeting the stringent requirements of modern industry for high-efficiency electromagnetic materials.

[0004] However, existing annealing furnaces for non-oriented silicon steel production tend to tilt when heating silicon steel due to the different sizes of the steel, causing the silicon steel pieces to stick together and affecting product quality and production efficiency. Therefore, an annealing furnace for non-oriented silicon steel production is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an annealing furnace for the production of non-oriented silicon steel, which aims to improve the problem in the prior art that silicon steel of different sizes is prone to tilting, causing the silicon steel to stick together and affecting product quality and production efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an annealing furnace for the production of non-oriented silicon steel, comprising a furnace body, a furnace door rotatably connected to the side wall of the furnace body, a limiting component provided on the side wall of the furnace body, a residual heat utilization component provided on the top of the furnace body, and a heating device provided inside the furnace body. The limiting component includes a mounting box fixedly connected to the side wall of the furnace body, a knob rotatably connected to the side wall of the mounting box, a gear fixedly connected to the side wall of the knob, a locking block engaged at the bottom of the gear, a pull rod rotatably connected to the bottom of the locking block, a spring sleeved on the surface of the pull rod, a rotating rod fixedly connected inside the gear, and a limiting rod fixedly connected to the surface of the rotating rod.

[0007] As a further description of the above technical solution:

[0008] The residual heat utilization component includes a heat insulation cavity fixedly connected to the inside of the furnace body, a water pump fixedly connected to the top of the furnace body, a water pipe fixedly connected to the output end of the water pump, a preheating box fixedly connected to one end of the water pipe, and a valve fixedly connected to the surface of the water pipe.

[0009] As a further description of the above technical solution:

[0010] A placement plate is slidably connected inside the furnace body, and a controller is fixedly connected to the side wall of the furnace body;

[0011] As a further description of the above technical solution:

[0012] The gear is rotatably connected to the inner wall of the mounting box, and the locking block is rotatably connected to the inner wall of the mounting box;

[0013] As a further description of the above technical solution:

[0014] The pull rod is slidably connected inside the mounting box;

[0015] As a further description of the above technical solution:

[0016] The rotating rod is rotatably connected inside the furnace body;

[0017] As a further description of the above technical solution:

[0018] The water pipe passes through the insulation cavity and is fixedly connected inside the insulation cavity;

[0019] As a further description of the above technical solution:

[0020] The water pump is electrically connected to the controller, and the heating device is electrically connected to the controller.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the structural design of the limiting component, the limiting component of the non-oriented silicon steel annealing furnace controls the limiting rod through mechanical structure cooperation. The rotation of the knob and gear is adapted to accurately transmit the adjustment torque. The locking block, pull rod and spring constitute an elastic locking mechanism, providing stable indexing positioning for gear operation, ensuring the accuracy of the angle adjustment of the rotating rod and the limiting rod. The cooperation between the limiting rod and the placement plate can adaptively limit silicon steel of different specifications, effectively avoiding the adhesion problem caused by the posture deviation of silicon steel during heating. It solves the problem in the prior art that silicon steel of different sizes is prone to tilting, causing silicon steel to stick together, affecting product quality and production efficiency.

[0023] 2. In this utility model, through the structural design of the waste heat utilization component, the heat insulation cavity captures the waste heat of the furnace body, and the water pump drives the medium in the water pipe to flow, accurately introducing the waste heat into the preheating box, realizing the secondary utilization of energy, which can effectively reduce production energy consumption. The valve can flexibly adjust the medium flow rate to adapt to the waste heat recovery needs under different working conditions, helping the annealing furnace to improve energy utilization efficiency while ensuring stable process temperature, and enhancing the practicality of the annealing furnace for non-oriented silicon steel production. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the annealing furnace for producing non-oriented silicon steel proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the limiting component of the annealing furnace for producing non-oriented silicon steel proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the gear structure of the annealing furnace for producing non-oriented silicon steel proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the residual heat utilization component of the annealing furnace for non-oriented silicon steel production proposed in this utility model.

[0028] Legend:

[0029] 1. Furnace body; 2. Furnace door; 3. Limiting component; 4. Residual heat utilization component; 5. Heating device; 6. Placement plate; 7. Controller; 8. Mounting box; 9. Knob; 10. Gear; 11. Locking block; 12. Pull rod; 13. Spring; 14. Rotating rod; 15. Limiting rod; 16. Insulation chamber; 17. Water pump; 18. Water pipe; 19. Preheating box; 20. Valve. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1-3This utility model provides an embodiment of an annealing furnace for non-oriented silicon steel production, comprising a furnace body 1, a furnace door 2 rotatably connected to the side wall of the furnace body 1, the furnace body 1 and the furnace door 2 forming the working environment for silicon steel annealing, a limit component 3 provided on the side wall of the furnace body 1 to limit the silicon steel and prevent it from tipping over, a residual heat utilization component 4 provided on the top of the furnace body 1 to utilize the residual heat of annealing and improve resource utilization, and a heating device 5 provided inside the furnace body 1 to heat, maintain and anneal the silicon steel. In the firing process, the limiting component 3 includes a mounting box 8 fixedly connected to the side wall of the furnace body 1. A knob 9 is rotatably connected to the side wall of the mounting box 8, and a gear 10 is fixedly connected to the side wall of the knob 9. The knob 9 can drive the gear 10 to move synchronously, allowing the gear 10 to be adjusted even from outside the mounting box 8. A locking block 11 is engaged at the bottom of the gear 10, which can limit the gear 10 and prevent it from rotating. A pull rod 12 is rotatably connected to the bottom of the locking block 11, and the pull rod 12 can drive the locking block 11 to move. The locking block 11 releases its restriction on the pull rod 12. A spring 13 is fitted on the surface of the pull rod 12, providing elastic support for the locking block 11 and enabling it to automatically reset. A rotating rod 14 is fixedly connected inside the gear 10, and a limit rod 15 is fixedly connected to the surface of the rotating rod 14. Rotation of the gear 10 drives the rotating rod 14 to rotate, adjusting the limit rod 15 and limiting its position on the silicon steel. A placement plate 6 is slidably connected inside the furnace body 1, supporting the bottom of the silicon steel. A controller 7 is fixedly connected to the side wall of the furnace body 1. A gear 10 is rotatably connected to the inner wall of the mounting box 8. When the knob 9 is turned, the gear 10 rotates inside the mounting box 8. A locking block 11 is rotatably connected to the inner wall of the mounting box 8. A pull rod 12 pulls the locking block 11 so that the locking block 11 rotates around the connection point with the mounting box 8 as the axis. The pull rod 12 is slidably connected inside the mounting box 8. The mounting box 8 provides space for the pull rod 12 to move. A rotating rod 14 is rotatably connected inside the furnace body 1. The furnace body 1 provides stable rotation support for the rotating rod 14.

[0032] Reference Figures 1-4 The residual heat utilization component 4 includes a heat insulation cavity 16 fixedly connected inside the furnace body 1. The heat insulation cavity 16 can seal the internal temperature of the furnace body 1 to prevent heat loss. A water pump 17 is fixedly connected to the top of the furnace body 1. A water pipe 18 is fixedly connected to the output end of the water pump 17. The water pump 17 can transport water inside the heat insulation cavity 16 through the water pipe 18. A preheating box 19 is fixedly connected to one end of the water pipe 18. The preheating box 19 can preheat the silicon steel to be annealed. A valve 20 is fixedly connected to the surface of the water pipe 18. The valve 20 can control the flow of water inside the preheating box 19. The water pipe 18 passes through the heat insulation cavity 16 and is fixedly connected inside the heat insulation cavity 16. The water pipe 18 provides a guide for the water inside the heat insulation cavity 16. The water pump 17 is electrically connected to the controller 7. The heating device 5 is electrically connected to the controller 7. The controller 7 can control the water pump 17 to transport water and the heating device 5 to heat.

[0033] Working principle: First, open furnace door 2 and place the non-oriented silicon steel to be annealed inside placement plate 6. Then, pull rod 12, causing it to move the locking block 11 downwards and compress spring 13, thus releasing the locking block 11 from limiting gear 10. Rotate knob 9, which causes gear 10 to rotate on the inner wall of mounting box 8. When gear 10 rotates, it drives rotating rod 14, which is fixedly connected to it, to rotate synchronously, thereby driving the limiting rod 15 on rotating rod 14 to rotate. Adjust the angle of limiting rod 15 to limit the silicon steel of different specifications inside placement plate 6, preventing tilting and sticking during heating. After adjustment, release the control of pull rod 12. Under the elastic force of spring 13, the steel is released... The locking block 11 fixes the gear 10 again, thereby fixing the angle of the limiting rod 15 to achieve the limit on the annealed silicon steel. The furnace door 2 is closed, and the heating device 5 is started by the controller 7. The heating device 5 begins to create a suitable temperature environment for silicon steel annealing in the furnace body 1, and carries out the heating, heat preservation and annealing process. During the annealing process, the controller 7 controls the water pump 17 to start. The water pump 17 draws water from the preheating box 19 into the insulation cavity 16 to anneal the inside of the furnace body 1. After the annealing is completed, the water temperature rises. The water in the insulation cavity 16 in the furnace body 1 is transported to the preheating box 19 through the water pipe 18. The silicon steel to be annealed can be placed in the preheating box 19 for preheating, realizing the recovery and utilization of waste heat.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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. An annealing furnace for producing non-oriented silicon steel, comprising a furnace body (1), characterized in that: The furnace body (1) is rotatably connected to a furnace door (2), the furnace body (1) is provided with a limit assembly (3) on its side wall, the furnace body (1) is provided with a residual heat utilization assembly (4) on its top, and a heating device (5) is provided inside the furnace body (1). The limiting component (3) includes a mounting box (8) fixedly connected to the side wall of the furnace body (1). A knob (9) is rotatably connected to the side wall of the mounting box (8). A gear (10) is fixedly connected to the side wall of the knob (9). A locking block (11) is engaged at the bottom of the gear (10). A pull rod (12) is rotatably connected to the bottom of the locking block (11). A spring (13) is sleeved on the surface of the pull rod (12). A rotating rod (14) is fixedly connected inside the gear (10). A limiting rod (15) is fixedly connected to the surface of the rotating rod (14).

2. The annealing furnace for producing non-oriented silicon steel according to claim 1, characterized in that: The residual heat utilization component (4) includes a heat insulation cavity (16) fixedly connected inside the furnace body (1), a water pump (17) fixedly connected to the top of the furnace body (1), a water pipe (18) fixedly connected to the output end of the water pump (17), a preheating box (19) fixedly connected to one end of the water pipe (18), and a valve (20) fixedly connected to the surface of the water pipe (18).

3. The annealing furnace for producing non-oriented silicon steel according to claim 1, characterized in that: The furnace body (1) is slidably connected to a placement plate (6), and the furnace body (1) is fixedly connected to a controller (7) on its side wall.

4. The annealing furnace for producing non-oriented silicon steel according to claim 1, characterized in that: The gear (10) is rotatably connected to the inner wall of the mounting box (8), and the locking block (11) is rotatably connected to the inner wall of the mounting box (8).

5. The annealing furnace for producing non-oriented silicon steel according to claim 1, characterized in that: The pull rod (12) is slidably connected inside the mounting box (8).

6. The annealing furnace for producing non-oriented silicon steel according to claim 1, characterized in that: The rotating rod (14) is rotatably connected inside the furnace body (1).

7. The annealing furnace for producing non-oriented silicon steel according to claim 2, characterized in that: The water pipe (18) passes through the insulation cavity (16) and is fixedly connected inside the insulation cavity (16).

8. The annealing furnace for producing non-oriented silicon steel according to claim 2, characterized in that: The water pump (17) is electrically connected to the controller (7), and the heating device (5) is electrically connected to the controller (7).

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