Blast furnace coal injection gun dismounting device

Abstract

The utility model relates to the field of disassembly and assembly devices, and discloses a blast furnace coal injection gun disassembly and assembly device which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a supporting seat, a motor is arranged in the bottom plate, the output end of the motor is fixedly connected with a rotating disc, and the upper surface of the rotating disc is rotationally connected with a plurality of bent plates. A connecting assembly is arranged on one side of each bent plate and used for connecting the bent plates with other components, a sliding block is slidably connected to the interior of the supporting base, the side wall of the sliding block is slidably connected to the interior of the bottom plate, a first hinge frame is fixedly connected to the upper surface of the sliding block, and a connecting plate is rotatably connected to the interior of the first hinge frame. According to the utility model, the motor drives the turntable to deflect, and the sliding block is driven to slide in the supporting seat under the action of the bent plate, so that the two ends of the connecting plate respectively deflect in the hinged frame I and the hinged frame II, the sliding rod is jacked up, the height of the fixed plate is adjusted, the height of the blast furnace coal injection gun is changed, and the flexibility of the equipment is improved through the scheme.

Description

Technical Field

[0001] The utility model relates to the field of disassembly and assembly devices, in particular to a disassembly and assembly device for a blast furnace coal injection gun. Background Art

[0002] A blast furnace coal injection gun is a device used in the process of blast furnace ironmaking. Its main function is to inject pulverized coal into the blast furnace to replace part of the coke, improve the combustion process in the furnace and increase the furnace efficiency. The coal injection gun sprays the pulverized coal into a specific position in the blast furnace through compressed air or other gases, which can help increase the output and quality of molten iron and reduce production costs. The coal injection gun needs to be regularly maintained and cleaned to ensure its normal operation. Since the pulverized coal may contain impurities, the nozzles and other components of the coal injection gun may be blocked. Therefore, a disassembly and assembly device is needed to facilitate the disassembly, cleaning and reassembly of the coal injection gun.

[0003] Traditional disassembly and assembly devices for blast furnace coal injection guns consist of fixed brackets and fixing devices, aiming to ensure the stability of the coal injection gun during use and facilitate disassembly, assembly and maintenance. The fixed bracket firmly supports the coal injection gun, and the fixing device usually adopts mechanical means (such as bolts, nuts, etc.) or hydraulic means to ensure that the coal injection gun does not move or fall off under high temperature and high pressure conditions, ensuring that the coal injection gun does not move in a high temperature and high pressure environment. Although the traditional disassembly and assembly device for blast furnace coal injection guns using a fixed bracket achieves the effect of stable support, it does not consider the problem that the height of the device is not easy to adjust due to the fixed bracket structure. Therefore, a disassembly and assembly device for a blast furnace coal injection gun is proposed to solve the above problems. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a disassembly and assembly device for a blast furnace coal injection gun, aiming to improve the problem that the height of the device is not easy to adjust in the prior art.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A disassembly and assembly device for a blast furnace coal injection gun includes a bottom plate. A support seat is fixedly connected to the upper surface of the bottom plate. A motor is arranged inside the bottom plate. The output end of the motor is fixedly connected to a turntable. A plurality of bent plates are rotatably connected to the upper surface of the turntable. A connecting component is arranged on one side of each bent plate for connecting the bent plate with other components. A slider is slidably connected inside the support seat. The side wall of the slider is slidably connected inside the bottom plate. A first articulated frame is fixedly connected to the upper surface of the slider. A connecting plate is rotatably connected inside the first articulated frame. A second articulated frame is rotatably connected inside the connecting plate. A sleeve is fixedly connected to the upper surface of the support seat. A sliding rod is slidably connected inside the sleeve. The side wall of the second articulated frame is slidably connected inside the sleeve, and the side wall of the second articulated frame is fixedly connected to the side wall of the sliding rod;

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

[0008] The connecting component includes a rotating block, the rotating block is rotatably connected inside the bent plate, and the side wall of the rotating block is fixedly connected to the side wall of the slider;

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

[0010] The upper surface of the sliding rod is fixedly connected with a fixing plate, and the upper surface of the fixing plate is fixedly connected with a fixing frame;

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

[0012] The upper surface of the fixing plate is fixedly connected with a hydraulic rod, the hydraulic rod is arranged at the bottom of the fixing frame, and the output end of the hydraulic rod is fixedly connected with a synchronous plate;

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

[0014] The side wall of the synchronous plate is fixedly connected with a side plate, and inclined grooves are symmetrically arranged inside the side plate;

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

[0016] The side wall of the fixing frame is fixedly connected with a rotating shaft, the side wall of the rotating shaft is rotatably connected with a rotating plate, and the side wall of the rotating plate is slidably connected inside the inclined groove;

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

[0018] The side wall of the rotating plate is fixedly connected with a third articulated frame, and a rotating block is rotatably connected inside the third articulated frame;

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

[0020] The side wall of the rotating block is fixedly connected with a clamping plate, and the clamping plate is at the same height as the placement groove inside the rotating block.

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

[0022] 1. In the utility model, by driving the turntable to deflect by the motor, one end of the bent plate deflects and moves in a circular motion on the turntable, and the other end deflects in the rotating block and pulls the slider to slide in the support seat, so that both ends of the connecting plate deflect in the first articulated frame and the second articulated frame respectively, jack up the sliding rod, adjust the height of the fixing plate, and thus change the height of the blast furnace coal injection gun. Through the above scheme, the flexibility of the equipment is improved, and it can better adapt to different working requirements.

[0023] 2. In the present utility model, by starting the hydraulic rod, the synchronous plate and the side plate are driven to rise, causing the rotating plate to slide in the inclined groove and deflect as the side plate rises, reducing the distance between the clamping plates, and finally fitting tightly against the barrel of the gun, thereby completing the fixation of the pulverized coal injection gun. This process ensures the stability of the pulverized coal injection gun during actual use, thus guaranteeing the smooth progress of the pulverized coal injection work and ensuring the efficiency and safety of the entire production process. Brief Description of the Drawings

[0024] Figure 1 is a three-dimensional schematic diagram of a disassembly and assembly device for a blast furnace pulverized coal injection gun proposed by the present utility model;

[0025] Figure 2 is a structural schematic diagram of the bottom plate of a disassembly and assembly device for a blast furnace pulverized coal injection gun proposed by the present utility model;

[0026] Figure 3 is a structural schematic diagram of the fixing plate of a disassembly and assembly device for a blast furnace pulverized coal injection gun proposed by the present utility model.

[0027] Legend Explanation:

[0028] 1. Bottom plate; 2. Support seat; 3. Motor; 4. Turntable; 5. Bent plate; 6. Rotating block; 7. Slide block; 8. First articulated frame; 9. Connecting plate; 10. Second articulated frame; 11. Sleeve; 12. Slide rod; 13. Fixing plate; 14. Fixing frame; 15. Hydraulic rod; 16. Synchronous plate; 17. Side plate; 18. Inclined groove; 19. Rotating shaft; 20. Rotating plate; 21. Third articulated frame; 22. Rotating block; 23. Clamping plate. Detailed Embodiment

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0030] Refer to Figure 1 - Figure 2, an embodiment provided by the present utility model: a disassembly and assembly device for a blast furnace coal injection gun, comprising a bottom plate 1, a support seat 2 fixedly connected to the upper surface of the bottom plate 1, a motor 3 disposed inside the bottom plate 1, a turntable 4 fixedly connected to the output end of the motor 3, a plurality of bent plates 5 rotatably connected to the upper surface of the turntable 4, a connecting component disposed on one side of each bent plate 5 for connecting the bent plate 5 to other components, a slider 7 slidably connected inside the support seat 2, the side wall of the slider 7 slidably connected inside the bottom plate 1, a hinge frame one 8 fixedly connected to the upper surface of the slider 7, a connecting plate 9 rotatably connected inside the hinge frame one 8, a hinge frame two 10 rotatably connected inside the connecting plate 9, a sleeve 11 fixedly connected to the upper surface of the support seat 2, a sliding rod 12 slidably connected inside the sleeve 11, the side wall of the hinge frame two 10 slidably connected inside the sleeve 11, and the side wall of the hinge frame two 10 fixedly connected to the side wall of the sliding rod 12. The connecting component includes a rotating block 6, the rotating block 6 is rotatably connected inside the bent plate 5, and the side wall of the rotating block 6 is fixedly connected to the side wall of the slider 7;

[0031] After the fixing work of the blast furnace coal injection gun is completed, when it is necessary to adjust the height of the blast furnace coal injection gun during use, the motor 3 can be started to drive the turntable 4 to deflect. The deflection movement of the turntable 4 will drive the corresponding movement of the bent plate 5. During this process, one end of the bent plate 5 will deflect on the surface of the turntable 4 and perform a circular motion along with the turntable 4. At the same time, the other end of the bent plate 5 will deflect inside the rotating block 6. Since the rotating block 6 is connected to the slider 7 and the slider 7 is restricted inside the support seat 2, therefore, with the circular motion of the bent plate 5, the slider 7 will also move accordingly and slide towards the middle along the chute inside the support seat 2. With the movement of the slider 7, one end of the connecting plate 9 will deflect inside the hinge frame one 8, and the other end will deflect inside the hinge frame two 10, thereby jacking up the sliding rod 12. In this way, the height of the fixing plate 13 is adjusted. By adjusting the height of the fixing plate 13, the height of the blast furnace coal injection gun is changed, thereby improving the flexibility and adaptability of the equipment during use, and ensuring the convenience of the blast furnace coal injection gun during use through the above method.

[0032] Refer to Figure 3, a fixed plate 13 is fixedly connected to the upper surface of the sliding rod 12. A fixed frame 14 is fixedly connected to the upper surface of the fixed plate 13. A hydraulic rod 15 is fixedly connected to the upper surface of the fixed plate 13. The hydraulic rod 15 is arranged at the bottom of the fixed frame 14. The output end of the hydraulic rod 15 is fixedly connected to a synchronous plate 16. A side plate 17 is fixedly connected to the side wall of the synchronous plate 16. Oblique grooves 18 are symmetrically formed inside the side plate 17. A rotating shaft 19 is fixedly connected to the side wall of the fixed frame 14. A rotating plate 20 is rotatably connected to the side wall of the rotating shaft 19. The side wall of the rotating plate 20 is slidably connected inside the oblique groove 18. A third articulated frame 21 is fixedly connected to the side wall of the rotating plate 20. A rotating block 22 is rotatably connected inside the third articulated frame 21. A clamping plate 23 is fixedly connected to the side wall of the rotating block 22. The clamping plate 23 and the placement groove inside the rotating block 22 are at the same height.

[0033] During the process of using this device to fix the blast furnace coal injection gun, first place the barrel of the blast furnace coal injection gun in the placement groove formed inside the fixed frame 14 and between the two side clamping plates 23. Next, by starting the hydraulic rod 15, drive the synchronous plate 16 to move upward. At the same time, the two side plates 17 will also move upward along with the movement of the synchronous plate 16. Since the lower side of the rotating plate 20 slides inside the oblique groove 18, when the side plate 17 moves upward, the rotating plate 20 will move correspondingly in the direction of the oblique groove 18. The rotating plate 20 deflects on the fixed frame 14 through the rotating shaft 19, so that the distance between the two clamping plates 23 gradually decreases. Finally, the two side clamping plates 23 will fit on the barrel, thus completing the fixing work of the blast furnace coal injection gun. This ensures the stability and safety of the coal injection gun in the blast furnace and enables the coal injection work to proceed smoothly.

[0034] Working principle: When using this device to fix the blast furnace coal injection gun, first place the barrel between the clamping plates 23, and then push the synchronous plate 16 upward by starting the hydraulic rod 15, and at the same time drive the two side plates 17 to move upward. Because the lower side of the rotating plate 20 slides inside the oblique groove 18, as the side plate 17 moves upward, the rotating plate 20 will move correspondingly. At this time, the rotating plate 20 will deflect on the fixed frame 14 through the rotating shaft 19, and the distance between the two clamping plates 23 will decrease until they fit on the barrel, thus completing the fixing work of the blast furnace coal injection gun;

[0035] After the blast furnace coal injection lance is fixed, when it is necessary to adjust the height of the blast furnace coal injection lance during use, the motor 3 can be started to drive the turntable 4 to deflect, thereby driving the bent plate 5 to move. At this time, one side of the bent plate 5 will deflect on the turntable 4 and at the same time follow the turntable 4 to perform a circular motion. The other side of the bent plate 5 will deflect inside the rotating block 6. Since the rotating block 6 is connected to the slider 7 and the slider 7 is restricted inside the support seat 2, as the bent plate 5 performs a circular motion, it will pull the slider 7 to move, causing it to slide inward inside the support seat 2. At the same time, one side of the connecting plate 9 will deflect inside the hinge frame one 8, and the other side will deflect inside the hinge frame two 10 and at the same time push the slide rod 12 upward, thereby achieving the effect of adjusting the height of the fixing plate 13.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A blast furnace coal injection gun disassembly and assembly device, comprising a bottom plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected to a support seat (2); a motor (3) is arranged inside the bottom plate (1); a turntable (4) is fixedly connected to the output end of the motor (3); a plurality of bent plates (5) are rotatably connected to the upper surface of the turntable (4); a connecting component is arranged on one side of each bent plate (5) for connecting the bent plate (5) to other components; a slider (7) is slidably connected inside the support seat (2); a side wall of the slider (7) is slidably connected to the inside of the bottom plate (1); The upper surface of the slider (7) is fixedly connected to an articulated frame 1 (8), the articulated frame 1 (8) is rotatably connected to a connecting plate (9), the connecting plate (9) is rotatably connected to an articulated frame 2 (10), the upper surface of the support seat (2) is fixedly connected to a sleeve (11), the sleeve (11) is slidably connected to a slide rod (12), the side wall of the articulated frame 2 (10) is slidably connected to the inside of the sleeve (11), and the side wall of the articulated frame 2 (10) is fixedly connected to the side wall of the slide rod (12).

2. A blast furnace coal injection gun disassembly and assembly device according to claim 1, characterized in that: The connecting assembly comprises a rotating block (6), the rotating block (6) being rotatably connected inside the bent plate (5), and the side wall of the rotating block (6) being fixedly connected to the side wall of the sliding block (7).

3. A blast furnace coal injection gun disassembly and assembly device according to claim 1, characterized in that: A fixing plate (13) is fixedly connected to the upper surface of the sliding rod (12), and a fixing frame (14) is fixedly connected to the upper surface of the fixing plate (13).

4. A blast furnace coal injection gun disassembly and assembly device according to claim 3, characterized in that: A hydraulic rod (15) is fixedly connected to the upper surface of the fixed plate (13); the hydraulic rod (15) is arranged at the bottom of the fixed frame (14); and a synchronous plate (16) is fixedly connected to the output end of the hydraulic rod (15).

5. A blast furnace coal injection gun disassembly and assembly device according to claim 4, characterized in that: The side wall of the synchronization plate (16) is fixedly connected to a side plate (17), and the side plate (17) is symmetrically provided with inclined grooves (18) inside.

6. A blast furnace coal injection gun disassembly and assembly device according to claim 5, characterized in that: The side wall of the fixed frame (14) is fixedly connected to a rotating shaft (19), the side wall of the rotating shaft (19) is rotatably connected to a rotating plate (20), and the side wall of the rotating plate (20) is slidably connected to the inside of the inclined groove (18).

7. A blast furnace coal injection gun disassembly and assembly device according to claim 6, characterized in that: The side wall of the rotating plate (20) is fixedly connected to a hinged frame three (21), and the hinged frame three (21) is rotatably connected to a rotating block (22) inside.

8. A blast furnace coal injection gun disassembly and assembly device according to claim 7, characterized in that: A clamping plate (23) is fixedly connected to the side wall of the rotating block (22), and the clamping plate (23) and the internal placement groove of the rotating block (22) are at the same height.

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