Safety interlocking assembly for flue damper of coke oven

Abstract

The utility model discloses a coke oven flue flashboard safety interlocking assembly which is installed in an inner cavity of a portal frame, a flue assembly is fixedly installed at the bottom of the portal frame, the flue assembly is installed underground and comprises a main smoke pipe, the front side of the main smoke pipe is communicated with a first external pipe, and the front side of the main smoke pipe is communicated with a second external pipe. And the rear side of the main smoke pipe communicates with a second external pipe, the front end of the first external pipe communicates with an air entraining pipe, an induced draft fan is fixedly installed in an inner cavity of the air entraining pipe, and a flashboard is slidably connected to an inner cavity of the flue assembly. Smoke in the inner cavity of the induced draft fan is naturally diffused through cooperative use of the flue assembly, the flashboard and the lifting equipment, and the flashboard is limited in the inner cavity of the portal frame through cooperative use of the through hole, the T-shaped threaded rod and the threaded groove, so that the coke oven flue flashboard is prevented from sliding down after being opened, and the coke oven flue is prevented from being damaged. And it is effectively guaranteed that waste smoke can be directly and continuously discharged from the pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of coke oven flue damper plates, in particular to a coke oven flue damper plate safety interlocking component. Background Art

[0002] During the normal production process of the coke oven, if the desulfurization and denitrification fans fail, lose power, or operate abnormally, the flue gate needs to be opened to prevent the accumulation of flue exhaust gas and explosion accidents. When troubleshooting and repairing the fault, in order to ensure that the gate can be stably limited after opening and will not slide down, and to ensure that the waste smoke can be directly and continuously discharged from the pipeline, it is necessary to design a coke oven flue gate safety interlock assembly, which uses a positioning pin inserted into the gate guide assembly to prevent the coke oven flue gate from sliding down after opening, and effectively ensure that the waste smoke can be directly and continuously discharged from the pipeline. Utility Model Content

[0003] The purpose of the utility model is to provide a coke oven flue gate safety interlock assembly, which adopts a positioning pin inserted into the gate guide assembly to avoid the coke oven flue gate from sliding down after opening, effectively ensuring that waste smoke can be directly and continuously discharged from the pipeline, so as to solve the problems raised by the above-mentioned background technology.

[0004] The utility model solves the above technical problems with the following technical solutions: a coke oven flue damper safety interlocking assembly, the assembly is installed in the inner cavity of a gantry, a flue assembly is fixedly installed at the bottom of the gantry, the flue assembly is installed underground, the flue assembly includes a main flue pipe, the front side of the main flue pipe is connected to an external pipe 1, the rear side of the main flue pipe is connected to an external pipe 2, the front end of the external pipe 1 is connected to an air duct, the inner cavity of the flue assembly is slidably connected to a damper, the top of the inner cavity of the flue assembly is fixedly installed A lifting device is installed, and the lifting hook of the lifting device is engaged with the top of the gate plate. Guide components are welded on the top and bottom of both sides of the gate plate. The guide components include a guide rod penetrating to one side of the inner cavity of the gantry. Guide grooves compatible with the guide components are provided on both sides of the inner cavity of the gantry. Through holes are provided on the top and bottom of both sides of the gantry. The inner cavity of the through hole is threadedly connected with a T-shaped threaded rod penetrating to the inside of the guide rod, and one end of the guide rod is provided with a threaded groove compatible with the T-shaped threaded rod.

[0005] Preferably, the rear end of the external pipe 2 is connected to an air outlet pipe, the rear end of the air outlet pipe is connected to a chimney, the front end of the induced air pipe is connected to a smoke outlet pipe, the left side of the smoke outlet pipe is connected to pipe 1, the left side of the chimney is connected to pipe 2, a desulfurization and denitrification device is connected between pipe 1 and pipe 2, a draft fan is fixedly installed on the surface of pipe 2, and the draft fan is connected to pipe 2.

[0006] Preferably, the induced draft fan and the air outlet pipe are both flange-connected to the flue assembly.

[0007] Preferably, a roller is rotatably connected to the surface of the guide rod, and the roller rolls in the inner cavity of the guide groove.

[0008] Preferably, a pressure sensor is fixedly installed on the top of the right side of the inner cavity of the gantry.

[0009] Preferably, ladders are fixedly mounted on both sides of the gantry.

[0010] 1. The beneficial effects of the utility model are as follows: the utility model uses the flue assembly, the gate and the lifting device in coordination, so that the smoke in the inner cavity of the induced draft fan is naturally dissipated, and the gate is limited in the inner cavity of the gantry through the coordinated use of the through hole, the T-shaped threaded rod and the threaded groove, so that the gate is prevented from sliding down after the coke oven flue gate is opened, and the purpose of effectively ensuring that the waste smoke can be directly and continuously discharged from the pipeline is achieved.

[0011] 2. The utility model reduces the resistance to the gate plate sliding in the inner cavity of the gantry through the setting of the roller, thereby enabling the lifting device to drive the gate plate to rise rapidly in the inner cavity of the gantry.

[0012] 3. The utility model sets a pressure sensor so that after the gate plate is driven by the lifting equipment to rise in the inner cavity of the gantry, it touches the pressure sensor, causing the pressure sensor to send a signal to stop the operation of the lifting equipment, and can align the through hole and the threaded groove to facilitate the T-shaped threaded rod to limit the gate plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] in:

[0014] Figure 1 This is a schematic diagram of a main plan view of an embodiment of the utility model;

[0015] Figure 2 A rear perspective schematic diagram of an embodiment of the utility model;

[0016] Figure 3 This is a main perspective schematic diagram of an embodiment of the utility model;

[0017] Figure 4 This is a schematic cross-sectional view of a main view of a flue assembly according to an embodiment of the utility model;

[0018] Figure 5 This is an embodiment of the utility model Figure 4 A magnified schematic diagram of the middle pair A;

[0019] Figure 6This is a front perspective schematic diagram of a guide assembly according to an embodiment of the utility model;

[0020] Figure 7 This is a top view schematic diagram of the smoke flow direction with the gate open in one embodiment of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Gantry, 2. Flue assembly, 21. Main smoke pipe, 22. External pipe one, 23. External pipe two, 3. Induced air pipe, 4. Induced draft fan, 5. Exhaust pipe, 6. Gate, 7. Lifting equipment, 8. Guide assembly, 81. Guide rod, 82. Roller, 9. Guide groove, 10. Through hole, 11. T-shaped threaded rod, 12. Threaded groove, 13. Pressure sensor, 14. Ladder. DETAILED DESCRIPTION

[0023] Hereinafter, an embodiment of the coke oven flue damper safety interlock assembly of the present invention will be described with reference to the accompanying drawings.

[0024] Embodiment 1:

[0025] Figure 1-6The utility model shows a coke oven flue gate safety interlocking assembly of an embodiment of the utility model, which is installed in the inner cavity of the gantry 1: a flue assembly 2 is fixedly installed at the bottom of the gantry 1, and the flue assembly 2 is installed underground. The flue assembly 2 includes a main flue pipe 21, and the front side of the main flue pipe 21 is connected to an external pipe 1 22, and the rear side of the main flue pipe 21 is connected to an external pipe 2 23, and the front end of the external pipe 1 22 is connected to an air duct 3, and the rear end of the external pipe 2 23 is connected to an air outlet pipe 5, and the rear end of the external pipe 2 23 is connected to the air outlet pipe 5, and the rear end of the air outlet pipe 5 is connected to There is a chimney, the front end of the induced air pipe 3 is connected to a smoke outlet pipe, the left side of the smoke outlet pipe is connected to a pipe 1, the left side of the chimney is connected to a pipe 2, a desulfurization and denitrification device is connected between the pipe 1 and the pipe 2, a draft fan 4 is fixedly installed on the surface of the pipe 2, the draft fan 4 is connected to the pipe 2, a gate plate 6 is slidably connected to the inner cavity of the flue component 2, a lifting device 7 is fixedly installed on the top of the inner cavity of the flue component 2, the lifting hook of the lifting device 7 is engaged with the top of the gate plate 6, and the top and bottom of both sides of the gate plate 6 are welded with guide components 8 The guide assembly 8 includes a guide rod 81 that penetrates one side of the inner cavity of the gantry 1. The surface of the guide rod 81 is rotatably connected with a roller 82. The roller 82 rolls in the inner cavity of the guide groove 9. The setting of the roller 82 reduces the resistance of the gate plate 6 sliding in the inner cavity of the gantry 1, so that the lifting device 7 can drive the gate plate 6 to rise quickly in the inner cavity of the gantry 1. Guide grooves 9 that are compatible with the guide assembly 8 are provided on both sides of the inner cavity of the gantry 1. Through holes 10 are provided on the top and bottom of both sides of the gantry 1. The inner cavity of the through hole 10 has a threaded A T-shaped threaded rod 11 is connected to the inside of the guide rod 81, and a threaded groove 12 matching the T-shaped threaded rod 11 is opened at one end of the guide rod 81. A pressure sensor 13 is fixedly installed on the top of the right side of the inner cavity of the gantry 1. Through the setting of the pressure sensor 13, the gate plate 6 touches the pressure sensor 13 after being driven by the lifting equipment 7 to rise in the inner cavity of the gantry 1, so that the pressure sensor 13 sends a signal to stop the operation of the lifting equipment 7, and can align the through hole 10 and the threaded groove 12 to facilitate the T-shaped threaded rod 11 to limit the gate plate 6.

[0026] Embodiment 2:

[0027] Figure 1-6The utility model shows a coke oven flue damper safety interlocking assembly of an embodiment of the utility model, which is installed in the inner cavity of the gantry 1: a flue assembly 2 is fixedly installed at the bottom of the gantry 1, and the flue assembly 2 is installed underground. The flue assembly 2 includes a main flue pipe 21, and the front side of the main flue pipe 21 is connected to an external pipe 1 22, and the rear side of the main flue pipe 21 is connected to an external pipe 2 23, and the front end of the external pipe 1 22 is connected to an air induced draft pipe 3, and the induced draft fan 4 and the air outlet pipe 5 are flange-connected to the flue assembly 2, and the inner cavity of the flue assembly 2 is slidably connected to a damper 6, and the top of the inner cavity of the flue assembly 2 is fixedly installed with a lifting device 7. The lifting hook of the lifting device 7 is engaged with the top of the gate plate 6, and guide components 8 are welded on the top and bottom of both sides of the gate plate 6. The guide component 8 includes a guide rod 81 that penetrates to one side of the inner cavity of the gantry 1, and guide grooves 9 that are compatible with the guide component 8 are provided on both sides of the inner cavity of the gantry 1. Through holes 10 are provided on the top and bottom of both sides of the gantry 1. The inner cavity of the through hole 10 is threadedly connected with a T-shaped threaded rod 11 that penetrates to the inside of the guide rod 81, and a threaded groove 12 that is compatible with the T-shaped threaded rod 11 is provided at one end of the guide rod 81. Ladders 14 are fixedly installed on both sides of the gantry 1.

[0028] Working principle: When the utility model is used, the user connects the power supply of the lifting device 7 to the backup power supply to avoid the lifting device 7 from failing to operate when a power outage occurs. Then, the lifting device 7 and the pressure sensor 13 are programmed in the on-site control console. If the induced draft fan 4 fails, the user can control the operation of the lifting device 7 through programming. When the lifting device 7 is in operation, the gate plate 6 is driven to separate from the inner cavity of the flue assembly 2 and rise in the inner cavity of the gantry 1, and at the same time, the roller 82 rolls in the inner cavity of the guide groove 9 until the top of the gate plate 6 touches the pressure sensor 13. At this time, the pressure sensor 13 sends a signal, which then stops the operation of the lifting device 7, causing the gate plate 6 to temporarily rise in the gantry. 1, and at the same time, any adjacent through holes 10 and thread grooves 12 are on the same horizontal line. Then the user sequentially passes the T-shaped threaded rod 11 through the through hole 10 and rotates it to the inner cavity of the thread groove 12 to avoid the gate 6 from falling down before the fault is checked and repaired. In summary, when the induced draft fan 4 has a fault alarm or stops, a command is issued to the flue gate valve 6. After receiving the opening command, the flue gate valve will start the lifting device 7 to open the gate valve 6. The coke oven exhaust gas is discharged from the chimney through the underground flue to the atmosphere through the natural suction force of the chimney, so as to avoid the coke oven flue gate from sliding down after opening, and effectively ensure that the exhaust smoke can be directly and continuously discharged from the pipeline.

[0029] To sum up: the coke oven flue gate safety interlock assembly, through the cooperation of the flue assembly 2, the gate 6 and the lifting device 7, allows the smoke in the inner cavity of the induced draft fan 4 to dissipate naturally, and through the cooperation of the through hole 10, the T-shaped threaded rod 11 and the threaded groove 12, the gate 6 is limited in the inner cavity of the gantry 1, which can avoid the coke oven flue gate from sliding down after opening, and effectively ensure that the waste smoke can be discharged directly and continuously from the pipeline.

Claims

1. A coke oven flue damper safety interlock assembly, characterized in that: The component is installed in the inner cavity of the gantry (1): a flue component (2) is fixedly installed at the bottom of the gantry (1), the flue component (2) is installed underground, the flue component (2) comprises a main flue pipe (21), the front side of the main flue pipe (21) is connected to an external pipe 1 (22), the rear side of the main flue pipe (21) is connected to an external pipe 2 (23), the front end of the external pipe 1 (22) is connected to an air duct (3), the inner cavity of the flue component (2) is slidably connected to a gate plate (6), the top of the inner cavity of the flue component (2) is fixedly installed with a lifting device (7), and the lifting hook of the lifting device (7) is connected to the The top of the gate plate (6) is engaged with each other, and the top and bottom of both sides of the gate plate (6) are welded with guide components (8), and the guide components (8) include a guide rod (81) that passes through one side of the inner cavity of the gantry (1), and both sides of the inner cavity of the gantry (1) are provided with guide grooves (9) that are compatible with the guide components (8), and the top and bottom of both sides of the gantry (1) are provided with through holes (10), and the inner cavity of the through hole (10) is threadedly connected with a T-shaped threaded rod (11) that passes through the inside of the guide rod (81), and one end of the guide rod (81) is provided with a threaded groove (12) that is compatible with the T-shaped threaded rod (11).

2. A coke oven flue damper safety interlock assembly according to claim 1, characterized in that: The rear end of the external pipe 2 (23) is connected to an air outlet pipe (5), the rear end of the air outlet pipe (5) is connected to a chimney, the front end of the induced air pipe (3) is connected to a smoke outlet pipe, the left side of the smoke outlet pipe is connected to pipe 1, the left side of the chimney is connected to pipe 2, a desulfurization and denitrification device is connected between pipe 1 and pipe 2, an induced draft fan (4) is fixedly installed on the surface of pipe 2, and the induced draft fan (4) is connected to pipe 2.

3. A coke oven flue damper safety interlock assembly according to claim 2, characterized in that: The induced draft fan (4) and the air outlet pipe (5) are both flange-connected to the flue assembly (2).

4. A coke oven flue damper safety interlock assembly according to claim 3, characterized in that: The surface of the guide rod (81) is rotatably connected to a roller (82), and the roller (82) rolls in the inner cavity of the guide groove (9).

5. A coke oven flue damper safety interlock assembly according to claim 4, characterized in that: A pressure sensor (13) is fixedly mounted on the top of the right side of the inner cavity of the gantry (1).

6. A coke oven flue damper safety interlock assembly according to claim 5, characterized in that: Ladders (14) are fixedly mounted on both sides of the gantry (1).

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