Coke oven door sealing device

Abstract

This application relates to the field of coke oven equipment technology, and in particular to a sealing device for a coke oven door of a coke quenching car. The device includes a door body, a drive mechanism, and a sealing assembly. The drive mechanism is mounted on the door body and connected to the sealing assembly, driving the sealing assembly to achieve a seal. The drive mechanism includes a fixed frame, an electric telescopic rod, and a connecting frame. The sealing assembly includes a connecting plate, a guide rod, a sealing plate, and an elastic sealing unit. Through the combination of multiple structures, it solves the problems of loosening and incomplete sealing in existing devices, improves the sealing effect, reduces the leakage of harmful gases, and has good practicality.

Description

Technical Field

[0001] This application relates to the field of coke oven equipment technology, and in particular to a sealing device for the furnace door of a coke quenching car. Background Technology

[0002] In modern coking production, the coke quenching car, as a key piece of equipment, undertakes important tasks such as opening and closing the coke oven doors, connecting the coke guide grids, and guiding coke into the quenching car frame. In actual operation, the sealing effect of the oven doors is crucial. Existing coke quenching car door sealing technologies have revealed some problems during long-term use. For example, some door sealing devices employ relatively simple structural designs, and the connection between the sealing components and the oven door body is not robust enough. Under frequent opening and closing operations, the sealing components are prone to loosening and displacement, leading to a poor seal. When the oven door is not properly sealed, high-temperature harmful gases such as sulfur dioxide, nitrogen oxides, and dust can leak into the environment. This not only causes serious pollution to the surrounding atmosphere, affecting air quality and endangering the health of nearby residents, but also leads to energy waste and increased production costs. Furthermore, for the coking plant's production environment, leaked harmful gases can corrode equipment, shorten its service life, and disrupt normal production. According to incomplete statistics, in some coking plants that use traditional furnace door sealing devices, the annual energy loss due to poor furnace door sealing is as high as hundreds of thousands of yuan, and the cost of environmental pollution control is also rising year by year.

[0003] Therefore, developing a sealing device for the coke oven door that is structurally sound, has good sealing performance, and can adapt to frequent operation is of great practical significance. Utility Model Content

[0004] The purpose of this invention is to provide a sealing device for the furnace door of a coke quenching car, solving the problems of loosening and inadequate sealing of existing furnace door sealing devices under frequent operation, leading to harmful gas leakage, energy waste, and environmental pollution. By rationally designing the drive mechanism, sealing components, and elastic sealing unit, the invention achieves efficient and stable sealing of the furnace door, reducing harmful gas leakage, improving energy utilization, lowering environmental pollution risks, extending equipment lifespan, and ensuring smooth production.

[0005] The coke oven door sealing device provided in this application adopts the following technical solution: it includes a furnace door body, a drive mechanism, and a sealing component. The drive mechanism is installed on the furnace door body and connected to the sealing component. The drive mechanism can drive the sealing component to move in order to seal the furnace door.

[0006] Optionally, the drive mechanism includes a fixed frame and an electric telescopic rod. The fixed frame is fixed to the furnace door body, and the electric telescopic rod is provided on the fixed frame. A connecting frame is hinged to the fixed frame, and the output end of the electric telescopic rod is hinged to the other side of the connecting frame.

[0007] Optionally, the sealing assembly includes a connecting plate, which is fixedly connected to the connecting frame. The connecting plate has a slot, and a slidable guide rod is provided in the slot. A first compression spring is provided on the guide rod, and the other end of the first compression spring is connected to the connecting plate. A sealing plate for sealing the furnace door body is fixed to the other end of the guide rod.

[0008] Optionally, a hinge rod is hinged to the connecting plate, a movable frame is sleeved on the guide rod, a clamping frame is hinged to the edge of the movable frame, the hinge rod is hinged to the other side of the clamping frame, a rotating screw is provided in the middle of the movable frame, a rotating handwheel is provided at the end of the rotating screw, the rotating screw is threaded to the connecting plate, and a clamping block is provided on the clamping frame.

[0009] Optionally, the sealing plate is provided with a plurality of elastic sealing units that can fasten the sealing assembly and the furnace door body. The elastic sealing unit includes a sealing seat, a movable fastening bolt is provided in the sealing seat, the fastening bolt is provided with a rotating handle, and the fastening bolt is threadedly connected to the furnace door body.

[0010] In summary, this application includes the following beneficial technical effects:

[0011] 1. Improved Sealing Performance: The precise control of the sealing components via the drive mechanism ensures a tight seal between the sealing plate and the furnace door. Combined with the buffering and adaptive action of the first compression spring, the further clamping of the clamping frame and blocks, and the securing effect of the elastic sealing unit, these multiple sealing measures significantly improve the furnace door's sealing performance, effectively reducing the leakage of harmful gases. Experimental tests show that using this sealing device reduces harmful gas leakage by more than 80% compared to traditional sealing devices.

[0012] 2. Stable and reliable structure: The fixed frame in the drive mechanism is fixed to the furnace door body, the connecting frame is hinged to the electric telescopic rod and the connecting plate, and the connection design between the various components in the sealing assembly, such as the sliding connection between the guide rod and the connecting plate, and the sleeve connection between the movable frame and the guide rod, make the entire device structurally stable. Under frequent furnace door opening and closing operations, the components are not prone to loosening or displacement, ensuring the long-term stable operation of the sealing device.

[0013] 3. Easy to operate: The design of rotating screw and handwheel makes it easy for operators to adjust the position of clamping frame according to the actual situation, so as to achieve sealing treatment for different gap sizes. The operation is simple and quick, reducing the labor intensity of operators.

[0014] 4. Energy saving and environmental protection: The good sealing effect reduces the leakage of energy gases in the coke oven, improves energy utilization, and reduces the pollution of the environment by harmful gases, which meets the development requirements of energy saving and environmental protection and has significant economic and environmental benefits. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the device. Figure I ;

[0016] Figure 2 This is a schematic diagram of the overall structure of the device. Figure II ;

[0017] Figure 3 This is the front view of the device;

[0018] Figure 4 This is a cross-sectional schematic diagram of the overall structure of this device;

[0019] The components are as follows: 1. Furnace door body; 2. Drive mechanism; 3. Sealing assembly; 4. Fixing frame; 5. Electric telescopic rod; 6. Connecting frame; 7. Connecting plate; 8. Groove; 9. Guide rod; 10. First compression spring; 11. Sealing plate; 12. Hinge rod; 13. Movable frame; 14. Clamping frame; 15. Rotating screw; 16. Rotating handwheel; 17. Clamping block; 18. Elastic sealing unit; 19. Sealing seat; 20. Fastening bolt; 21. Rotating handle. Detailed Implementation

[0020] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0021] Reference Figure 1 , Figure 2One embodiment is shown where the furnace door body 1 of the coke quenching car furnace door sealing device serves as the foundational load-bearing component of the entire device. The drive mechanism 2 includes a fixed frame 4 and an electric telescopic rod 5. The fixed frame 4 is securely installed at a specific position on the furnace door body 1 via welding or other fixing methods, located near the edge of the furnace door body 1 close to the side requiring sealing. Its function is to provide a stable mounting base for the electric telescopic rod 5. The electric telescopic rod 5 is mounted on the fixed frame 4 and tightly connected to it via bolts or other methods, ensuring the electric telescopic rod 5 is stably fixed in that position. The connecting plate 7 in the sealing assembly 3 is fixedly connected to the connecting frame 6 in the drive mechanism 2. The connection method can be welding or bolt fastening, ensuring a secure connection and synchronous movement. In this embodiment, the drive mechanism 2 forms a tight and stable connection with the furnace door body 1 and the sealing assembly 3, laying the foundation for subsequent furnace door sealing operations.

[0022] The implementation principle of the above embodiment is as follows: When the furnace door needs to be sealed, the electric telescopic rod 5 is activated, and its telescopic characteristics generate linear displacement at the output end. Since the output end of the electric telescopic rod 5 is hinged to the connecting frame 6, this hinge structure allows the linear motion of the electric telescopic rod 5 to be converted into the rotation of the connecting frame 6 around the hinge point on the fixed frame 4. Furthermore, since the connecting frame 6 is fixedly connected to the connecting plate 7 of the sealing assembly 3, the rotation of the connecting frame 6 can drive the sealing assembly 3 to move as a whole towards the position of the furnace door that needs to be sealed, thereby realizing the purpose of the drive mechanism 2 driving the sealing assembly 3 to move to achieve the purpose of sealing the furnace door.

[0023] Reference Figure 1 , Figure 2 One embodiment is shown whereby the fixing frame 4 is securely fixed to the side of the furnace door body 1 via welding. Its position is chosen to facilitate the movement of the electric telescopic rod 5 and the connecting frame 6 without affecting the normal opening and closing of the furnace door. The electric telescopic rod 5 is connected to the fixing frame 4 via a matching mounting base, which is secured to the fixing frame 4 with bolts to ensure a stable installation. One end of the connecting frame 6 is hinged to the fixing frame 4 via a pin, allowing the connecting frame 6 to rotate freely around the pin. The output end of the electric telescopic rod 5 is hinged to the other end of the connecting frame 6 via another pin, forming a movable connection structure. In this embodiment, the connections between the components are tight and flexible, ensuring smooth power transmission and operation of the drive mechanism 2.

[0024] The implementation principle of the above embodiment is as follows: When the electric telescopic rod 5 starts to extend or retract, its output end pushes the connecting frame 6, which is hinged to it. Since one end of the connecting frame 6 is hinged to the fixed frame 4, under the force of the output end of the electric telescopic rod 5, the connecting frame 6 swings in a circle around the hinge point on the fixed frame 4. This swing transmits force through the hinge point between the connecting frame 6 and the output end of the electric telescopic rod 5, thereby enabling the connecting frame 6 to move along a predetermined trajectory, providing power output for the subsequent movement of the sealing assembly 3.

[0025] Reference Figure 1 , Figure 2 , Figure 3 One embodiment is shown whereby the connecting plate 7 is securely fixed to the connecting frame 6 by welding or high-strength bolts, ensuring that there is no relative displacement between the two during movement. The slot 8 on the connecting plate 7 is hole-like, through which the guide rod 9 passes, and a clearance fit is used between the guide rod 9 and the slot 8, allowing the guide rod 9 to slide smoothly within the slot 8. A first compression spring 10 is sleeved on the guide rod 9, with one end abutting against the connecting plate 7 and prevented from falling off by welding or a limiting structure, and the other end contacting a limiting component on the guide rod 9, such as a retaining ring welded to the guide rod 9. A sealing plate 11 is fixed to the end of the guide rod 9 away from the connecting plate 7, and the connection method can be welding or bolting, ensuring that the sealing plate 11 and the guide rod 9 form a single unit. In this embodiment, the connection and arrangement of the components enable the sealing assembly 3 to effectively seal the furnace door under the drive of the driving mechanism 2, utilizing the cooperation of the guide rod 9 and the first compression spring 10.

[0026] The implementation principle of the above embodiment is as follows: When the driving mechanism 2 drives the connecting plate 7 to move, the connecting plate 7 drives the guide rod 9 and the sealing plate 11 to move towards the furnace door. When the sealing plate 11 contacts the furnace door, the furnace door generates a reaction force on the sealing plate 11, and the guide rod 9 slides in the groove 8 to ensure that the sealing plate 11 can move stably along the predetermined direction when subjected to the reaction force, without deviation.

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4One embodiment is shown as follows: A hinge rod 12 is hinged to the connecting plate 7 via a pin, allowing the hinge rod 12 to rotate relative to the connecting plate 7 around the pin. A movable frame 13 sleeved on the guide rod 9 is clearance-fitted with the guide rod 9, allowing the movable frame 13 to slide freely along the guide rod 9. The edge of the movable frame 13 is hinged to the clamping frame 14 via a pin, forming a movable connection structure. The other end of the hinge rod 12 is hinged to the other side of the clamping frame 14 via a pin, connecting the hinge rod 12, the movable frame 13, and the clamping frame 14 into a linkage structure. A rotating screw 15 passes through the middle of the movable frame 13 and is rotatably connected to the movable frame 13, with a clearance fit between them. A rotating handwheel 16 is fixed to the end of the rotating screw 15 for easy rotation by the operator. The rotating screw 15 is threadedly connected to the connecting plate 7, forming a helical transmission structure. A clamping block 17 is fixedly mounted on the clamping frame 14. The clamping block 17 is typically made of a material with a certain degree of hardness and wear resistance, such as a metal alloy, and is fixed to the clamping frame 14 by welding or bolting. In this embodiment, the connection between the components constitutes an adjustable clamping structure, which can further enhance the sealing effect.

[0028] The implementation principle of the above embodiment is as follows: When the handwheel 16 is rotated, the handwheel 16 drives the rotating screw 15 to rotate. Since the rotating screw 15 is threadedly connected to the connecting plate 7, according to the principle of screw transmission, the rotation of the rotating screw 15 is converted into its linear movement along the axial direction. The movement of the rotating screw 15 pushes the movable frame 13 to slide on the guide rod 9. The movement of the movable frame 13 drives the clamping frame 14 to move through its hinge point with the clamping frame 14. At the same time, the movement of the movable frame 13 causes the sealing plate 11 to close the furnace door. Meanwhile, the hinge rod 12 plays a linkage role in the movement of the movable frame 13 and the clamping frame 14, further adjusting the angle and position of the clamping frame 14. When the clamping frame 14 moves to the appropriate position, the clamping block 17 on the clamping frame 14 can clamp the gap between the furnace door and the sealing assembly 3, thereby improving the sealing effect.

[0029] Reference Figure 1 , Figure 2 , Figure 3One embodiment is shown where multiple sealing seats 19 are installed on the sealing plate 11 via welding or bolt connection. The number and distribution of the sealing seats 19 are designed according to sealing requirements and are evenly distributed in the area where the sealing plate 11 contacts the furnace door. Fastening bolts 20 pass through the sealing seats 19 and are clearance-fitted with them, allowing the bolts 20 to move within the seats. One end of the bolt 20 is fixed with a handle 21, which is fixed to the bolt 20 via welding or a key connection, ensuring that the handle 21 can drive the bolt 20 to rotate. The other end of the bolt 20 is threadedly connected to the furnace door body 1, forming a fastening structure. In this embodiment, the connection and arrangement of the components of the elastic sealing unit 18 can achieve further tightening and sealing between the sealing assembly 3 and the furnace door body 1.

[0030] The implementation principle of the above embodiment is as follows: After the sealing plate 11 is attached to the furnace door, the handle 21 is rotated, and the handle 21 drives the fastening bolt 20 to rotate. Since the fastening bolt 20 is threadedly connected to the furnace door body 1, as the fastening bolt 20 rotates, the fastening bolt 20 gradually screws into the furnace door body 1, causing the sealing seat 19 to move closer to the furnace door body 1.

[0031] The working principle of this device is as follows: During sealing, the electric telescopic rod 5 of the drive mechanism 2 drives the connecting frame 6 to rotate, causing the sealing assembly 3 to move towards the furnace door. After the sealing plate 11 contacts the furnace door, the guide rod 9 slides in the slot 8. Turning the handwheel 16 causes the rotating screw 15 to push the movable frame 13 to slide, driving the clamping frame 14 to move, the hinge rod 12 to adjust in conjunction, and the clamping block 17 to clamp the gap. Finally, turning the handle 21 of the elastic sealing unit 18 causes the fastening bolt 20 to be screwed into the furnace door body 1, achieving a stable seal of the furnace door.

[0032] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A coke barrier car door seal apparatus, characterized by: The furnace door includes a main body (1), a drive mechanism (2), and a sealing assembly (3). The drive mechanism (2) is mounted on the main body (1) and connected to the sealing assembly (3). The drive mechanism (2) can drive the sealing assembly (3) to move in order to seal the furnace door.

2. The pusher door seal apparatus of claim 1, wherein: The drive mechanism (2) includes a fixed frame (4) and an electric telescopic rod (5). The fixed frame (4) is fixed on the furnace door body (1). The electric telescopic rod (5) is provided on the fixed frame (4). A connecting frame (6) is hinged on the fixed frame (4). The output end of the electric telescopic rod (5) is hinged to the other side of the connecting frame (6).

3. The pusher door seal apparatus of claim 2, wherein: The sealing assembly (3) includes a connecting plate (7), which is fixedly connected to the connecting frame (6). The connecting plate (7) has a slot (8) and a sliding guide rod (9) is provided in the slot (8). A first compression spring (10) is provided on the guide rod (9). The other end of the first compression spring (10) is connected to the connecting plate (7). The other end of the guide rod (9) is fixed with a sealing plate (11) that can seal the furnace door body (1).

4. The pusher door seal apparatus of claim 3, wherein: A hinge rod (12) is hinged to the connecting plate (7), and a movable frame (13) is sleeved on the guide rod (9). A clamping frame (14) is hinged to the edge of the movable frame (13). The hinge rod (12) is hinged to the other side of the clamping frame (14). A rotating screw (15) is provided in the middle of the movable frame (13). A rotating handwheel (16) is provided at the end of the rotating screw (15). The rotating screw (15) is threaded to the connecting plate (7). A clamping block (17) is provided on the clamping frame (14).

5. The pusher door seal apparatus of claim 4, wherein: The sealing plate (11) is provided with a plurality of elastic sealing units (18) that can fasten the sealing assembly (3) and the furnace door body (1). The elastic sealing unit (18) includes a sealing seat (19), and a movable fastening bolt (20) is provided in the sealing seat (19). The fastening bolt (20) is provided with a rotating handle (21), and the fastening bolt (20) is threadedly connected to the furnace door body (1).

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