Opening and closing device for smelting furnace door

Abstract

The utility model provides a smelting furnace door opening and closing device which relates to the technical field of smelting furnaces and is applied to a smelting furnace body, a furnace opening is formed in one end of the smelting furnace body in a penetrating mode, a first fixing frame is arranged at one end of the smelting furnace body, and supports are symmetrically arranged at the bottoms of the two ends of the first fixing frame. A limiting frame is arranged between the two supports, and two guide rods are arranged between the first fixing frame and the limiting frame. The servo motor drives the lead screw to rotate, the first sliding frame is promoted to drive the high-strength furnace door to slide and ascend on the guide rod, then the high-strength furnace door slides to a furnace opening or is far away from the position where the furnace opening is located, the furnace opening can be sealed in a targeted mode through the sealing plate, the heat loss speed in the smelting furnace body is reduced, and the service life of the smelting furnace is prolonged. Therefore, the opening and closing stability of the smelting furnace door is improved, potential safety hazards are avoided, labor and time cost is saved, overall working efficiency is improved, and actual use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting furnaces, in particular to a smelting furnace door opening and closing device. Background Art

[0002] Melting furnaces are essential components of regenerative melting and casting systems for metals like aluminum. The shape, material, and structural composition of the furnace door not only directly impact the system's operating efficiency and fuel consumption, but are also crucial components in actual production. These factors include ensuring material flow in and out of the furnace, ensuring pressure and temperature uniformity in the furnace chamber, and directly impacting smelting process operations, such as furnace maintenance and slag removal.

[0003] In the prior art, for example, the "Smelting Furnace Door Opening and Closing Device" disclosed in Chinese Patent No. CN208458506U comprises a furnace door structure, two troughs, several support blocks, and a lifting mechanism. The furnace door structure includes a door body, two fixed plates, and four support columns. The two fixed plates are fixed to opposite sides of the door body, and the four support columns are fixed to the two fixed plates in pairs. The two troughs are vertically arranged outside the two fixed plates and fixed to the surrounding wall of the smelting furnace via several support blocks. Each trough includes a vertical trough section and two inclined trough sections fixed to the middle and bottom of the vertical trough section, respectively. The two upper support columns are slidably mounted in a slide groove connecting the vertical trough section and the middle inclined trough section, while the two lower support columns are slidably mounted in a slide groove connecting the vertical trough section and the bottom inclined trough section. The lifting mechanism is mounted at the top of the two troughs and is used to drive the door body to slide along the two troughs to open and close the furnace door. This opening and closing device is safe to use, closes tightly, and reduces energy consumption.

[0004] When using the existing smelting furnace door, the furnace door is usually rotated or raised and lowered to open and close manually. However, the manual operation method is relatively complicated, time-consuming and labor-intensive, easily affects work efficiency, and poses certain safety hazards. At the same time, the above-mentioned patent document uses a chain to drive the furnace door to open or close, which has poor stability and is prone to shaking during the lifting process, making it difficult to meet actual usage needs. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art that the manual operation method is relatively complicated, time-consuming and labor-intensive, easily affects work efficiency, and has certain safety hazards. At the same time, the above-mentioned patent document adopts a chain to drive the furnace door to lift and open or close, which has poor stability and is prone to shaking during the lifting process of the furnace door, making it difficult to meet actual use needs. A smelting furnace door opening and closing device is proposed.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a smelting furnace door opening and closing device is applied to the smelting furnace body, one end of the smelting furnace body is penetrated with a furnace mouth, one end of the smelting furnace body is provided with a first fixed frame, and the bottom of both ends of the first fixed frame is symmetrically provided with brackets, a limiting frame is provided between the two brackets, two guide rods are provided between the first fixed frame and the limiting frame, a servo motor is provided on the top of the first fixed frame, the output end of the servo motor movably passes through the first fixed frame and is connected to a screw rod, a first sliding frame is provided on the outside of the guide rod and the screw rod, and reset assemblies are symmetrically provided at both ends of one side of the first sliding frame, one end of the two reset assemblies movably passes through the first sliding frame and is connected to a high-strength furnace door, and a sealing plate is fixedly installed on one side of the high-strength furnace door.

[0007] Preferably, a U-shaped frame is provided at the bottom of each of the two brackets, a hydraulic cylinder is provided at one end of the U-shaped frame, and an output end of the hydraulic cylinder movably passes through the U-shaped frame and is connected to a trapezoidal block.

[0008] Preferably, the reset assembly includes a connecting rod, and a spring is sleeved on the outer side of the connecting rod.

[0009] Preferably, second sliding frames are symmetrically arranged at both ends of the first sliding frame, and one end of the second sliding frame is fixedly connected to a first limiting block.

[0010] Preferably, a sliding groove is formed through one side of the bracket, and the second sliding bracket is slidably installed in the sliding groove.

[0011] Preferably, two guide frames are provided at the bottom of the first fixing frame, and the two guide frames are respectively provided on both sides of the sealing plate.

[0012] Preferably, a second fixed frame is provided at the bottom of one end of the smelting furnace body, two movable rods are provided at the bottom of the second fixed frame, a second limit block is provided at the bottom of the movable rod, one end of the movable rod is movable through the second fixed frame and is connected to a fastening claw, and a driving assembly is provided at the bottom of the second fixed frame.

[0013] Preferably, the driving assembly includes a threaded rod, one end of which is provided with an operating handwheel, and the other end of the threaded rod is movably inserted into the second fixing frame and fits against the bottom of the fastening claw.

[0014] Preferably, a plurality of legs are provided at the bottom of the smelting furnace body, and an anti-slip seat is provided at the bottom of the legs.

[0015] Preferably, the size of the sealing plate corresponds to the furnace opening.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. In the present invention, a servo motor drives the screw to rotate, prompting the first sliding frame to drive the high-strength furnace door to slide and rise on the guide rod, thereby sliding the high-strength furnace door to the furnace opening or away from the furnace opening. The furnace opening can be sealed specifically by the sealing plate, reducing the heat loss rate in the smelting furnace body, thereby improving the stability of the opening and closing of the smelting furnace door, avoiding safety hazards, saving labor and time costs, improving overall work efficiency, and meeting actual use needs.

[0018] 2. In the present invention, two hydraulic cylinders can respectively push the corresponding trapezoidal blocks to slide, prompting the trapezoidal blocks to squeeze the high-strength furnace door. At the same time, the reset assembly slides and contracts due to the squeezing, prompting the sealing plate to be stuck into the furnace mouth, thereby achieving efficient sealing of the furnace mouth, reducing operational difficulty, improving sealing performance, reducing heat loss, reducing the energy consumption of the smelting furnace body, and saving economic costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a smelting furnace door opening and closing device proposed in the utility model;

[0020] Figure 2 This is a side view of a smelting furnace door opening and closing device proposed in the utility model;

[0021] Figure 3 This is a partial structural diagram of a smelting furnace door opening and closing device proposed in the utility model;

[0022] Figure 4 This is a schematic diagram of the sealing plate structure of a smelting furnace door opening and closing device proposed in the utility model;

[0023] Figure 5 The utility model provides a partial structural diagram of a smelting furnace door opening and closing device.

[0024] Legend: 1. Melting furnace body; 2. Furnace mouth; 3. First fixed frame; 4. Guide rod; 5. Servo motor; 6. Screw; 7. First sliding frame; 8. High-strength furnace door; 9. Sealing plate; 10. U-shaped frame; 11. Hydraulic cylinder; 12. Trapezoidal block; 13. Connecting rod; 14. Spring; 15. Bracket; 16. Slide; 17. Second sliding frame; 18. First limit block; 19. Limit frame; 20. Guide frame; 21. Second fixed frame; 22. Movable rod; 23. Second limit block; 24. Fastening claw; 25. Threaded rod; 26. Operating handwheel; 27. Tripod; 28. Anti-slip seat. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1: Figure 1-Figure 5 As shown, the utility model provides a technical solution: a smelting furnace door opening and closing device is applied to the smelting furnace body 1, and a furnace mouth 2 is opened through one end of the smelting furnace body 1, and a first fixed frame 3 is provided at one end of the smelting furnace body 1, and brackets 15 are symmetrically provided at the bottom of both ends of the first fixed frame 3, and a limiting frame 19 is provided between the two brackets 15, and two guide rods 4 are provided between the first fixed frame 3 and the limiting frame 19. A servo motor 5 is provided on the top of the first fixed frame 3, and the output end of the servo motor 5 movably passes through the first fixed frame 3 and is connected to a screw rod 6, and a first sliding frame 7 is provided on the outside of the guide rod 4 and the screw rod 6, and reset components are symmetrically provided at both ends of one side of the first sliding frame 7, and one end of the two reset components movably passes through the first sliding frame 7 and is connected to a high-strength furnace door 8, and a sealing plate 9 is fixedly installed on one side of the high-strength furnace door 8.

[0028] In this embodiment, the servo motor 5 drives the screw rod 6 to rotate, prompting the first sliding frame 7 to drive the high-strength furnace door 8 to slide and rise and fall on the guide rod 4, thereby causing the high-strength furnace door 8 to slide to the furnace mouth 2 or away from the position where the furnace mouth 2 is located. The sealing plate 9 can be used to perform targeted sealing on the furnace mouth 2 to reduce the heat loss rate in the smelting furnace body 1, thereby improving the stability of the opening and closing of the smelting furnace door, avoiding safety hazards, saving labor and time costs, improving overall work efficiency, and meeting actual usage needs.

[0029] Example 2: Figure 1-Figure 5As shown, a U-shaped frame 10 is provided at the bottom of each of the two brackets 15, and a hydraulic cylinder 11 is provided at one end of the U-shaped frame 10. The output end of the hydraulic cylinder 11 is movable through the U-shaped frame 10 and is connected to a trapezoidal block 12. The reset assembly includes a connecting rod 13, and a spring 14 is provided on the outer side of the connecting rod 13. The second sliding frame 17 is symmetrically provided at both ends of the first sliding frame 7. One end of the second sliding frame 17 is fixedly connected to the first limit block 18. A slide groove 16 is provided on one side of the bracket 15, and the second sliding frame 17 is slidably installed in the slide groove 16. Two guide frames 20 are provided at the bottom of the first fixed frame 3, and the two guide frames 20 are respectively provided on both sides of the sealing plate 9. The smelting furnace body 1 is provided with a second fixed frame 21 at the bottom of one end, two movable rods 22 are provided at the bottom of the second fixed frame 21, a second limit block 23 is provided at the bottom of the movable rod 22, one end of the movable rod 22 is movably passed through the second fixed frame 21 and is connected to a fastening claw 24, a driving assembly is provided at the bottom of the second fixed frame 21, the driving assembly includes a threaded rod 25, one end of the threaded rod 25 is provided with an operating handwheel 26, the other end of the threaded rod 25 is movably passed through the second fixed frame 21 and fits on the bottom of the fastening claw 24, a plurality of legs 27 are provided at the bottom of the smelting furnace body 1, an anti-slip seat 28 is provided at the bottom of the leg 27, and the size of the sealing plate 9 corresponds to the furnace mouth 2.

[0030] In this embodiment, the two hydraulic cylinders 11 can respectively push the corresponding trapezoidal blocks 12 to slide, causing the trapezoidal blocks 12 to squeeze the high-strength furnace door 8. At the same time, the reset component slides and contracts due to the squeezing, causing the sealing plate 9 to be stuck in the furnace mouth 2, thereby achieving efficient sealing of the furnace mouth 2, reducing operational difficulty, improving sealing performance, reducing heat loss, reducing energy consumption of the smelting furnace body 1, and saving economic costs. The connecting rod 13 can be fixedly connected to the high-strength furnace door 8 and installed on the first sliding frame 7. The contraction and rebound characteristics of the spring 14 can facilitate the sealing plate 9 to be stuck in the furnace mouth 2. At the same time, when the furnace door is opened, the high-strength furnace door 8 can be quickly reset, thereby reducing operational difficulty, saving labor and time costs, and the second sliding frame 17 slides in the slide groove 16, which can play a role in the high-strength furnace door 8. The limiting function prevents the high-strength furnace door 8 from shaking significantly during the lifting and lowering process, thereby improving the stability of the high-strength furnace door 8 when opening and closing. The guide frame 20 can limit the sealing plate 9 during the lifting and lowering process of the high-strength furnace door 8 to prevent the sealing plate 9 from being damaged by swinging, thereby further improving the stability of the device and extending its service life. By turning the operating handwheel 26, the threaded rod 25 pushes the fastening claw 24 to rise. When the high-strength furnace door 8 closes the furnace mouth 2, the bottom of the high-strength furnace door 8 is pressed and sealed, thereby further improving the sealing effect and reducing the heat loss rate. The foot stand 27 can provide effective support for the smelting furnace body 1. At the same time, the anti-slip seat 28 can increase the friction force to prevent the smelting furnace body 1 from shaking too much during use, thereby improving the stability of the smelting furnace body 1.

[0031] The working principle of this embodiment is as follows: when in use, first start the servo motor 5 to drive the screw 6 to rotate, prompting the first sliding frame 7 to drive the high-strength furnace door 8 to slide down to the furnace mouth 2. Then, start the two hydraulic cylinders 11 to push the corresponding trapezoidal blocks 12 to slide and squeeze the high-strength furnace door 8. When the high-strength furnace door 8 is stressed, the connecting rod 13 slides inward and squeezes the spring 14 to contract, thereby clamping the sealing plate 9 into the inner side of the furnace mouth 2. Then, turn the operating hand wheel 26 to make the threaded rod 25 push the fastening claw 24 to slide upward. Then, the lower half of the high-strength furnace door 8 is pressed to completely close it, thereby improving the sealing effect. Finally, when the furnace mouth 2 needs to be opened, the operating hand wheel 26 is turned in the opposite direction to lower the fastening claw 24. At the same time, the two hydraulic cylinders 11 are started again to slide the two trapezoidal blocks 12 to their original positions. At this time, the spring 14 rebounds and the sealing plate 9 is disengaged from the furnace mouth 2. The servo motor 5 is started again to drive the screw rod 6 to rotate in the opposite direction to raise the high-strength furnace door 8, thereby opening the furnace mouth 2. This completes the use of the smelting furnace door opening and closing device.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A smelting furnace door opening and closing device, applied to a smelting furnace body (1), characterized in that: A furnace opening (2) is provided through one end of the smelting furnace body (1), a first fixed frame (3) is provided at one end of the smelting furnace body (1), brackets (15) are symmetrically provided at the bottom of both ends of the first fixed frame (3), a limiting frame (19) is provided between the two brackets (15), two guide rods (4) are provided between the first fixed frame (3) and the limiting frame (19), a servo motor (5) is provided on the top of the first fixed frame (3), the output end of the servo motor (5) is movably passed through the first fixed frame (3) and is connected to a screw rod (6), a first sliding frame (7) is provided on the outside of the guide rod (4) and the screw rod (6), a reset assembly is symmetrically provided at both ends of one side of the first sliding frame (7), one end of the two reset assemblies is movably passed through the first sliding frame (7) and is connected to a high-strength furnace door (8), and a sealing plate (9) is fixedly installed on one side of the high-strength furnace door (8).

2. The smelting furnace door opening and closing device according to claim 1, characterized in that: A U-shaped frame (10) is provided at the bottom of each of the two brackets (15), a hydraulic cylinder (11) is provided at one end of the U-shaped frame (10), and an output end of the hydraulic cylinder (11) movably passes through the U-shaped frame (10) and is connected to a trapezoidal block (12).

3. The smelting furnace door opening and closing device according to claim 1, characterized in that: The reset assembly comprises a connecting rod (13), and a spring (14) is sleeved on the outer side of the connecting rod (13).

4. The smelting furnace door opening and closing device according to claim 1, characterized in that: Second sliding frames (17) are symmetrically arranged at both ends of the first sliding frame (7), and one end of the second sliding frame (17) is fixedly connected to a first limiting block (18).

5. The smelting furnace door opening and closing device according to claim 4, characterized in that: A sliding groove (16) is provided through one side of the bracket (15), and the second sliding frame (17) is slidably installed in the sliding groove (16).

6. The smelting furnace door opening and closing device according to claim 1, characterized in that: Two guide frames (20) are provided at the bottom of the first fixing frame (3), and the two guide frames (20) are respectively provided on both sides of the sealing plate (9).

7. The smelting furnace door opening and closing device according to claim 1, characterized in that: A second fixed frame (21) is provided at the bottom of one end of the smelting furnace body (1), two movable rods (22) are provided at the bottom of the second fixed frame (21), a second limit block (23) is provided at the bottom of the movable rod (22), one end of the movable rod (22) is movable through the second fixed frame (21) and is connected to a fastening claw (24), and a driving component is provided at the bottom of the second fixed frame (21).

8. The smelting furnace door opening and closing device according to claim 7, characterized in that: The driving assembly comprises a threaded rod (25), one end of which is provided with an operating hand wheel (26), and the other end of which is movable through the second fixing frame (21) and affixed to the bottom of the fastening claw (24).

9. The smelting furnace door opening and closing device according to claim 1, characterized in that: A plurality of legs (27) are provided at the bottom of the smelting furnace body (1), and an anti-slip seat (28) is provided at the bottom of each leg (27).

10. The smelting furnace door opening and closing device according to claim 1, characterized in that: The size of the sealing plate (9) corresponds to the furnace opening (2).

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