Coke oven slide plate gate device with multiple sealing structures

Abstract

The utility model relates to the technical field of coke oven equipment, in particular to a coke oven plugboard door device with multiple sealing structures, which comprises a door frame, the door frame is an assembly carrier of the coke oven plugboard device, and the door frame is a rectangular frame body and is fixedly arranged at a coal charging port of a coke oven for use; the coke oven door comprises a door frame and further comprises a gate plate, a driving piece, a guide rail, a sliding frame, a sealing ring and a pressing piece, the gate plate is arranged in the door frame and used for sealing and shielding a coal charging port of a coke oven, the driving piece used for driving the gate plate to be opened and closed is arranged on the upper portion of the door frame, and sliding grooves are formed in the two side walls of the gate plate. Through the combination of the sliding frame, the sealing ring and the pressing piece, the gate plate and the door frame are tightly attached, particularly, the spring in the pressing piece can continuously apply pressure to the sealing ring, so that the sealing ring is tightly attached to the gate plate all the time, the sealing performance is greatly improved, and gas leakage is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to coke oven equipment technical field, specifically relates to a coke oven plug door device with multiple sealing structure. BACKGROUND

[0002] In the metallurgical industry, coke oven is the key equipment for converting coal into coke, and the operating environment of coke oven is extremely harsh, requiring high temperature, high pressure and good sealing performance to ensure the safety and efficiency of the production process. With the increasingly stringent environmental regulations and the requirements of technological progress, the metallurgical industry is increasingly concerned about energy saving and emission reduction and safe production. As one of the high-pollution and high-energy-consumption enterprises, the coking plant is facing great challenges. In order to meet these requirements, it is inevitable to improve the coke oven and its auxiliary equipment.

[0003] Traditional coke oven plug door usually adopts single sealing structure, but in high temperature environment, these materials are easy to soften, decompose or lose elasticity, and it is difficult to maintain ideal sealing effect for a long time. In addition, due to the need of large force to open and close, the operation becomes inconvenient, and if the operation is improper, it is easy to cause sealing failure, further affecting the running efficiency and safety of the coke oven. Therefore, it is necessary to design a coke oven plug door device with multiple sealing structure in view of the shortcomings of the prior art. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, a coke oven plug door device with multiple sealing structure is provided.

[0005] The technical scheme is: a coke oven plug door device with multiple sealing structure, comprising a door frame, the door frame is the assembly carrier of the coke oven plug device, the door frame is a rectangular frame body and is fixedly arranged at the coal charging port of the coke oven for use; further comprising a shutter, a driving member, a guide rail, a sliding frame, a sealing ring and a pressure applying member, the door frame is provided with a shutter inside, the shutter is used for sealing and shielding the coal charging port of the coke oven, the upper part of the door frame is provided with a driving member for driving the shutter to open and close, the two side walls of the shutter are provided with a sliding groove, the two inner side walls of the door frame are fixedly provided with a guide rail, the shutter is slidably installed on the guide rail of the door frame through the sliding groove, the lower part of the door frame is provided with an outer frame plate symmetrically fixedly installed on the two side faces of the opening, there is a certain compartment between the outer frame plate and the door frame, the sliding frame is slidably arranged in the compartment between the shutter and the outer frame plate, the side face of the sliding frame close to the shutter is provided with a sealing ring, the outer frame plate is provided with a pressure applying member for applying pressure to the sliding frame, the pressure applying member pushes the sliding frame towards the shutter, so that the sealing ring on the sliding frame can tightly fit on the shutter, improving the sealing property between the door frame and the shutter.

[0006] In a preferred embodiment of the utility model, the driving part comprises a motor and a screw rod, the motor is fixedly installed on the top of the door frame, a screw rod is fixedly installed on the output shaft of the motor, the screw rod penetrates downward and is threadedly matched with the gate plate, the motor drives the gate plate to slide on the guide rail of the door frame through the screw rod, so that the gate plate can be automatically opened and closed on the coke oven.

[0007] In a preferred embodiment of the utility model, the pressure applying part comprises a connecting rod and a spring, the outer side wall of the sliding frame is fixedly connected with the connecting rod, a through hole is formed in the outer frame plate, the sliding frame is penetrated by the connecting rod and is slidably arranged in the inner portion of the outer frame plate, the spring is arranged between the connecting rod and the outer frame plate, and the sealing ring on the connecting rod and the sliding frame is tightly pressed on the gate plate under the action of the spring, thereby improving the sealing structure of the gate plate.

[0008] In a preferred embodiment of the utility model, the outer wall of the outer frame plate is fixedly provided with a heat shield, the heat shield covers the outer portion of the connecting rod and the spring, the heat shield is used for protecting the connecting rod and the spring on the outer side of the outer frame plate, and the service life of the connecting rod and the spring is improved.

[0009] In a preferred embodiment of the utility model, the connecting rod, the outer frame plate and the heat shield are made of high-temperature-resistant and heat-insulating materials.

[0010] In a preferred embodiment of the utility model, the connecting rod is slidably penetrated through the heat shield at two positions, the rod end of the connecting rod located at the outer portion of the heat shield is fixedly connected with a mounting rod, the top of the mounting rod is fixedly connected with a mounting plate, wedge-shaped blocks are fixedly arranged on the mutually close side surfaces of the two mounting plates, the inclined surface of the wedge-shaped block faces downward, when the gate plate is driven by the motor to move upward in the door frame through the screw rod, the top of the gate plate will be pressed on the wedge-shaped block, the wedge-shaped block will drive the connecting rod to open outward through the mounting rod after being pressed, the connecting rod drives the sealing ring on the sliding frame to temporarily separate from the gate plate, and thus the abrasion of the sealing ring caused by the sliding of the gate plate is reduced.

[0011] The utility model discloses the beneficial effect is:

[0012] 1, the utility model discloses the combination of sliding frame, sealing ring and pressure applying part, ensure the close fit between the gate plate and the door frame, especially the spring in pressure applying part can continuously exert pressure on the sealing ring, so that the sealing ring is always closely fitted on the gate plate, greatly improve the sealing performance, effectively prevent gas leakage.

[0013] 2, the utility model discloses the application of heat shield, protect the connecting rod and the spring on the outer portion of the outer frame plate from high temperature, simultaneously select high-temperature-resistant and heat-insulating material to manufacture key components, further improve the durability of these components, prolong the service life of the whole device.

[0014] 3、The utility model discloses a wedge block design, when the gate board moves upwards, its top will extrude the wedge block, makes the sealing ring temporarily separate from the gate board surface to avoid the friction between both, reduces the loss of sealing ring, guarantees long -term stable sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three -dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the connection relation diagram of the utility model gate board, outer frame board, sliding frame and connecting rod etc.

[0017] Figure 3 It is the explosion drawing of the utility model sliding frame and outer frame board.

[0018] Figure 4 It is the schematic diagram of the utility model connecting rod, mounting plate and wedge block etc.

[0019] Drawing reference: 1, door frame, 2, motor, 3, screw rod, 4, gate board, 5, guide rail, 6, sliding slot, 7, outer frame board, 8, sliding frame, 81, connecting rod, 9, spring, 10, sealing ring, 11, heat shield, 12, mounting rod, 13, mounting plate, 14, wedge block. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0021] A coke oven plug door device with multiple sealing structures, comprising a door frame, a motor, a screw rod, a gate board, a guide rail, a sliding slot, an outer frame board, a sliding frame, a connecting rod, a spring, a sealing ring, a heat shield, a mounting rod, a mounting plate and a wedge block. Figures 1-4As shown, including the door frame 1, door frame 1 is the assembly carrier of coke oven plug device, door frame 1 is rectangular frame and is fixed at the coal charging port of coke oven for use;Also includes gate 4, driving element, guide rail 5, sliding frame 8, sealing ring 10 and pressure applying element, the door frame 1 inside is provided with gate 4, gate 4 is used to seal the coal charging port of coke oven, the upper portion of door frame 1 is provided with the driving element for driving gate 4 to open and close, the both sides of gate 4 are provided with sliding groove 6, the both inside walls of door frame 1 are fixedly provided with guide rail 5, gate 4 is slidably installed on the guide rail 5 of door frame 1 through sliding groove 6, the both sides of the lower opening of door frame 1 are fixedly installed with outer frame plate 7, there is a certain compartment between outer frame plate 7 and door frame 1, sliding frame 8 is slidably arranged in the compartment between gate 4 and outer frame plate 7, the side of sliding frame 8 close to gate 4 is provided with sealing ring 10, outer frame plate 7 is provided with pressure applying element for applying pressure to sliding frame 8, pressure applying element pushes sliding frame 8 towards gate 4, so that the sealing ring 10 on sliding frame 8 can be tightly attached to gate 4, thereby improving the sealing property between door frame 1 and gate 4.

[0022] As shown in Figure 1 , the driving element includes motor 2 and screw rod 3, motor 2 is fixedly installed on the top of door frame 1, screw rod 3 is fixedly installed on the output shaft of motor 2, screw rod 3 penetrates downward and is threadedly adapted to gate 4, motor 2 threadedly drives gate 4 to slide on the guide rail 5 of door frame 1 through screw rod 3, so that gate 4 can be automatically opened and closed on coke oven.

[0023] As shown in Figure 2 and Figure 3 , the pressure applying element includes connecting rod 81 and spring 9, the outer side wall of sliding frame 8 is fixedly connected with connecting rod 81, outer frame plate 7 is provided with through hole, sliding frame 8 penetrates through connecting rod 81 and is slidably arranged in the inside of outer frame plate 7, spring 9 is arranged between connecting rod 81 and outer frame plate 7, under the action of spring 9, connecting rod 81 and sealing ring 10 on sliding frame 8 are tightly extruded on gate 4, thereby improving the sealing structure of gate 4.

[0024] As shown in Figure 1 , it further includes heat shield 11, the outer wall of outer frame plate 7 is fixedly provided with heat shield 11, heat shield 11 covers the outside of connecting rod 81 and spring 9, heat shield 11 is used for protecting connecting rod 81 and spring 9 outside outer frame plate 7, thereby improving the service life of connecting rod 81 and spring 9;Connecting rod 81, outer frame plate 7 and heat shield 11 are made of high temperature resistant and heat insulating material.

[0025] As shown in Figure 1As shown, the two connecting rods 81 slide through the heat shield 11, and the rod ends of the connecting rods 81 outside the heat shield 11 are fixedly connected with mounting rods 12, the top of the mounting rods 12 is fixedly connected with mounting plates 13, the two mounting plates 13 are fixedly provided with wedge blocks 14 on the mutually close side surfaces, the inclined surfaces of the wedge blocks 14 are downward, when the shutter 4 is driven by the motor 2 to move upward in the door frame 1, the top of the shutter 4 will be pressed on the wedge blocks 14, the wedge blocks 14 will drive the connecting rods 81 to open outward through the mounting rods 12 after being pressed, so that the connecting rods 81 drive the sealing rings 10 on the sliding frame 8 to temporarily separate from the shutter 4, thereby reducing the abrasion of the sealing rings 10 caused by the sliding of the shutter 4.

[0026] Firstly, the whole device takes the door frame 1 of a rectangular frame as an assembly carrier, is fixedly installed at the coal charging port of the coke oven, the door frame 1 is internally provided with a shutter 4 and is used for opening and closing the coal charging port, the stable sliding of the shutter 4 is realized through the cooperation of the sliding grooves 6 on the two sides and the guide rails 5 on the inner side walls of the door frame 1, when the motor 2 is started, the shutter 4 is driven to move up and down along the guide rails 5 through the screw thread transmission of the lead screw 3, the automatic opening and closing action is completed, in order to enhance the sealing effect, the outer frame plates 7 are arranged on the two sides of the lower opening of the door frame 1, the sliding frame 8 is arranged in the compartment, the sealing ring 10 is arranged on one side of the sliding frame 8, and the constant pressure is provided through the spring 9, so that the sealing ring 10 always maintains the tight pressing state to the shutter 4, thereby effectively preventing the impurities from the outside from entering and the high-temperature gas from leaking, the heat shield 11 is additionally arranged outside the outer frame plate 7, the heat shield 11 not only covers the connecting rods 81 and the spring 9, but also protects these components from high temperature, thereby prolonging the service life, the heat shield 11, the connecting rods 81 and the outer frame plate 7 are all made of high-temperature-resistant and heat-insulating materials, thereby ensuring the stable overall performance of the device, when the motor 2 drives the shutter 4 to move upward to close the coal charging port, the top of the shutter 4 will contact and press the wedge blocks 14 fixedly arranged on the mounting plates 13, since the inclined surfaces of the wedge blocks 14 are downward, the mounting rods 12 will be driven to open outward after being stressed, thereby driving the connecting rods 81 and the sliding frame 8 to temporarily move away from the shutter 4, so that the sealing ring 10 is separated from the contact surface, this ingenious design avoids the frictional damage of the sealing ring 10 in the sliding process of the shutter 4, and ensures the long-term effectiveness of the sealing ring 10.

[0027] The above only describes the preferred embodiments of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A coke oven door device having a multiple sealing structure, comprising a door frame (1); characterized in that, The gate (4), the driving member, the guide rail (5), the sliding frame (8), the sealing ring (10) and the pressure applying member are further included, the gate (4) is arranged inside the door frame (1) and is used for sealing and shielding the charging port of the coke oven, the driving member is arranged on the upper portion of the door frame (1) and is used for driving the gate (4) to open and close, the sliding groove (6) is arranged on the two side walls of the gate (4), the guide rail (5) is fixedly arranged on the two inner side walls of the door frame (1), the gate (4) is slidably arranged on the guide rail (5) of the door frame (1) through the sliding groove (6), the outer frame plate (7) is symmetrically and fixedly arranged on the two side faces of the lower opening of the door frame (1), the outer frame plate (7) and the door frame (1) are arranged with a certain compartment, the sliding frame (8) is slidably arranged in the compartment between the gate (4) and the outer frame plate (7), the sealing ring (10) is arranged on the side face of the sliding frame (8) close to the gate (4), the pressure applying member is arranged on the outer frame plate (7) and is used for applying pressure to the sliding frame (8), the pressure applying member pushes the sliding frame (8) towards the gate (4), so that the sealing ring (10) on the sliding frame (8) can be tightly attached to the gate (4).

2. A coke oven quarto door apparatus having a multiple seal structure according to claim 1, characterized in that, The driving member includes the motor (2) and the screw rod (3), the motor (2) is fixedly arranged on the top of the door frame (1), the output shaft of the motor (2) is fixedly connected with the screw rod (3), and the screw rod (3) penetrates downward and is threadedly connected with the gate (4).

3. A coke oven quarto door apparatus having a multiple seal structure according to claim 2, characterized in that, The pressure applying member includes the connecting rod (81) and the spring (9), the connecting rod (81) is fixedly connected to the outer side wall of the sliding frame (8), the through hole is arranged on the outer frame plate (7), the sliding frame (8) penetrates the outer frame plate (7) through the connecting rod (81) and is slidably arranged in the outer frame plate (7), and the spring (9) is arranged between the connecting rod (81) and the outer frame plate (7).

4. A coke oven quarto door assembly having a multiple seal structure according to claim 3, wherein The heat insulation cover (11) is further included, the outer wall of the outer frame plate (7) is fixedly connected with the heat insulation cover (11), the heat insulation cover (11) covers the outside of the connecting rod (81) and the spring (9), and the heat insulation cover (11) is used for protecting the connecting rod (81) and the spring (9) on the outside of the outer frame plate (7).

5. A coke oven quarto door apparatus having a multiple seal structure according to claim 4, wherein The connecting rod (81), the outer frame plate (7) and the heat insulation cover (11) are all made of high-temperature-resistant and heat-insulating materials.

6. A coke oven door apparatus having a multiple seal structure according to claim 5, wherein The connecting rod (81) penetrates the heat insulation cover (11) at two positions, the mounting rod (12) is fixedly connected to the rod end of the connecting rod (81) outside the heat insulation cover (11), the mounting plate (13) is fixedly connected to the top of the mounting rod (12), and the wedge-shaped block (14) is fixedly arranged on the side face of each of the two mounting plates (13) close to each other.

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