A purification device for coke oven flue gas

Abstract

This utility model relates to the field of gas treatment technology and discloses a purification device for coke oven flue gas. It includes a purification frame, an exhaust pipe connected through the middle of one side of the purification frame, an air inlet pipe connected through the other side of the purification frame, a conical shell fixedly connected to the lower surface of the purification frame, a blocking cover on the lower surface of the conical shell, two support feet fixedly connected to both sides of the purification frame, and an installation groove formed in the inner wall of the purification frame, with an installation frame installed inside the groove. This utility model, in conjunction with a connecting frame, drives the exhaust shell to move up and down reciprocally within a filter bag, repeatedly blowing outwards from the filter bag to remove adhering dust and reduce clogging. Simultaneously, a connecting block moves up and down within a connecting groove, causing the filter bag to move synchronously. The spring force, transmitted through a limiting circular plate and connecting column, is transmitted to the installation frame, causing the filter bag to rebound and shake, further accelerating the removal of loosened dust.

Description

Technical Field

[0001] This utility model relates to the field of gas treatment technology, and in particular to a purification device for coke oven flue gas. Background Technology

[0002] Coal is heated in the absence of air and decomposes into products such as coke, coke oven gas, and tar, while releasing a large amount of flue gas. Coke oven flue gas is the waste gas produced during the high-temperature dry distillation of coal in the coke oven. If the flue gas is not purified and is directly emitted, it can easily disrupt the ecological balance and affect the environment.

[0003] A search revealed that Chinese patent CN217909438U discloses an environmentally friendly baghouse dust collector for flue gas purification. Addressing the issue that some flue gas contains high levels of moisture, and the dust it carries has strong hygroscopic properties, leading to filter bag adhesion and clogging, thus reducing the dust removal efficiency of the device, an additional motor is added to drive a vibrating plate. This vibration causes the filter bags to vibrate, shaking off the damp flue gas dust adsorbed on their surface, preventing it from adhering to the filter bags and improving dust removal efficiency. Furthermore, a dryer further dries the damp flue gas dust adsorbed on the filter bags, enhancing the device's cleaning effect.

[0004] The aforementioned baghouse dust collectors only use vibration to shake off the dust, which is not very effective at removing attached dust. Some dust still tends to stick to the bags. In traditional technology, baghouse dust collectors are usually used to purify coke oven flue gas. However, baghouse dust collectors are prone to clogging after prolonged use, which affects the passage of flue gas and reduces the dust removal efficiency of the bags. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a purification device for coke oven flue gas.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a purification device for coke oven flue gas, comprising a purification frame, an exhaust pipe being connected through the middle of one side of the purification frame, an air inlet pipe being connected through the other side of the purification frame, a conical shell being fixedly connected to the lower surface of the purification frame, a blocking cover being provided on the lower surface of the conical shell, two support feet being fixedly connected to both sides of the purification frame, an installation groove being provided on the inner wall of the purification frame, an installation frame being provided inside the installation groove, multiple support frames being fixedly connected to the lower surface of the installation frame, a cloth bag being provided outside the support frame, and a dust removal component being provided on the other side of the purification frame.

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

[0008] The dust removal assembly includes an air compressor, which is fixedly installed on one side of the purification frame. The output end of the air compressor is connected to a flow pipe, and the lower surface of the flow pipe is connected to multiple folded pipes, which penetrate the upper surface of the purification frame.

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

[0010] One end of the folded tube is connected to a connecting tube, and multiple connecting tubes are fixedly connected to each other. Multiple venting tubes are connected to the lower surface of the connecting tube, and one end of the venting tube is fixedly connected to an air outlet shell. Multiple air outlet holes are opened on the outside of the air outlet shell.

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

[0012] A connecting frame is fixedly connected to the middle of the multiple connecting pipes, and a fixed shell is fixedly connected to the other side of the purification frame. A stepper motor is fixedly installed on the upper surface of the fixed shell, and a screw is fixedly connected to the output end of the stepper motor. The connecting frame is threaded to the outside of the screw and slidably connected to the inside of the fixed shell.

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

[0014] A shaking component is provided on one side of the purification frame. The shaking component includes a connecting groove, which is opened on one side of the purification frame. A connecting block is slidably connected inside the connecting groove.

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

[0016] A hydraulic cylinder is fixedly installed on one side of the purification frame, and the connecting block is fixedly connected to the output end of the hydraulic cylinder. Multiple holes and slots are opened on the lower surface of the mounting groove, and springs are fixedly connected inside the holes and slots.

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

[0018] One end of the spring is fixedly connected to a limiting circular plate, and a connecting post is fixedly connected to the upper surface of the limiting circular plate. Multiple connecting posts are fixedly connected to the lower surface of the mounting frame, and a limiting ring is fixedly connected to the inner wall of the slot.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model utilizes an air compressor to facilitate the delivery of high-pressure gas through a dust removal component. A series of pipes then connect to facilitate the output of the high-pressure gas via an outlet shell and outlet holes. The connecting frame moves multiple outlet shells into the bag body, allowing for automatic dust removal without removing the bag body from the device. This removes dust adhering to the outside of the bag body. The repeated up-and-down movement of the connecting frame further facilitates repeated blowing from the inside of the bag body outwards, improving the dust removal effect and reducing clogging.

[0021] 2. This utility model, through the setting of the shaking component, utilizes the connecting block to move up and down repeatedly inside the connecting groove, which facilitates the indirect movement of multiple filter bags up and down. After the spring transmits the elastic force to the connecting column through the limiting circular plate, the rebound of the mounting frame facilitates the generation of elastic force in multiple filter bags, causing the filter bags to shake. Under the action of shaking, the dust blown away by the dust removal component is helped to be removed from the outside of the filter bag, and the pre-falling dust is shaken to promote its fall, reducing the amount of dust residue on the outside of the filter bag. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the flow tube structure proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed shell proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the mounting groove structure proposed in this utility model;

[0026] Figure 5 This is a schematic diagram of the connecting block structure proposed in this utility model;

[0027] Figure 6 This is a schematic diagram of the air outlet shell structure proposed in this utility model;

[0028] Figure 7 This is a schematic diagram of the connecting groove structure proposed in this utility model;

[0029] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Purification frame; 2. Exhaust pipe; 3. Inlet pipe; 4. Conical shell; 5. Blocking cover; 6. Support foot; 7. Mounting slot; 8. Mounting frame; 9. Bag body; 10. Support frame; 11. Air compressor; 12. Flow pipe; 13. Folded pipe; 14. Connecting pipe; 15. Vent pipe; 16. Exhaust shell; 17. Exhaust hole; 18. Connecting frame; 19. Fixing shell; 20. Stepper motor; 21. Screw; 22. Connecting slot; 23. Connecting block; 24. Hydraulic cylinder; 25. Hole slot; 26. Spring; 27. Limiting circular plate; 28. Connecting column; 29. ​​Limiting ring. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] As attached Figure 1-8 As shown, one embodiment of this utility model provides a purification device for coke oven flue gas, including a purification frame 1, an exhaust pipe 2 connected through the middle of one side of the purification frame 1, an air inlet pipe 3 connected through the other side of the purification frame 1, a conical shell 4 fixedly connected to the lower surface of the purification frame 1 to facilitate the flow and fall of dust, a blocking cover 5 provided on the lower surface of the conical shell 4, two support feet 6 fixedly connected to both sides of the purification frame 1 to improve the stability of the device, an installation groove 7 opened in the inner wall of the purification frame 1, an installation frame 8 provided inside the installation groove 7, a plurality of support frames 10 fixedly connected to the lower surface of the installation frame 8, a cloth bag body 9 provided outside the support frame 10, and a dust removal component provided on the other side of the purification frame 1.

[0034] As attached Figure 2 As shown, the dust removal assembly includes an air compressor 11, which is fixedly installed on one side of the purification frame 1. The output end of the air compressor 11 is connected to a flow pipe 12, and the lower surface of the flow pipe 12 is connected to multiple folded pipes 13, which are convenient to fold and stretch as the connecting pipe 14 moves. The multiple folded pipes 13 penetrate the upper surface of the purification frame 1.

[0035] As attached Figure 6As shown, one end of the folded tube 13 is connected to a connecting tube 14, and multiple connecting tubes 14 are fixedly connected to each other. Multiple vent tubes 15 are connected to the lower surface of the connecting tube 14, and one end of the vent tube 15 is fixedly connected to an outlet shell 16 to facilitate gas transmission. Multiple outlet holes 17 are opened on the outside of the outlet shell 16 for high-pressure gas output. A connecting frame 18 is fixedly connected in the middle of the multiple connecting tubes 14 to facilitate the movement of the multiple connecting tubes 14.

[0036] As attached Figure 3 As shown, a fixed shell 19 is fixedly connected to the other side of the purification frame 1. A stepper motor 20 is fixedly installed on the upper surface of the fixed shell 19. A screw 21 is fixedly connected to the output end of the stepper motor 20. A connecting frame 18 is threaded to the outside of the screw 21 and slidably connected to the inside of the fixed shell 19, so that the screw 21 can drive the connecting frame 18 to move.

[0037] As attached Figure 1 As shown, a shaking component is provided on one side of the purification frame 1. The shaking component includes a connecting groove 22, which is opened on one side of the purification frame 1. A connecting block 23 is slidably connected inside the connecting groove 22 for connecting the mounting frame 8. A hydraulic cylinder 24 is fixedly installed on one side of the purification frame 1. The connecting block 23 is fixedly connected to the output end of the hydraulic cylinder 24, which facilitates the up and down movement of the connecting block 23.

[0038] As attached Figure 8 As shown, the lower surface of the mounting groove 7 is provided with multiple holes and slots 25 to facilitate the protection of the spring 26. The spring 26 is fixedly connected inside the holes and slots 25. One end of the spring 26 is fixedly connected to a limiting circular plate 27. A connecting post 28 is fixedly connected to the upper surface of the limiting circular plate 27. Multiple connecting posts 28 are fixedly connected to the lower surface of the mounting frame 8 to facilitate the transmission of elastic force. A limiting ring 29 is fixedly connected to the inner wall of the holes and slots 25. Together with the limiting circular plate 27, it helps to prevent the connecting post 28 from dislodging from the holes and slots 25.

[0039] Working principle: During use, the air inlet pipe 3 is connected to the flue gas duct. After the flue gas enters the purification frame 1 through the air inlet pipe 3, it is purified by multiple filter bags 9. The purified gas is discharged through the exhaust pipe 2. When the dust removal efficiency of the filter bags 9 decreases and becomes blocked, the controller starts the air compressor 11 and the stepper motor 20. The output end of the stepper motor 20 drives the screw 21 to rotate, which drives the connecting frame 18 to slide down inside the fixed shell 19, thereby driving multiple connecting pipes 14 to move down. This causes the connecting pipes 14 to drive multiple air pipes 15, which in turn drives the air outlet shell 16 to move down into the inside of the filter bag 9. When the air compressor 11 is started, the high-pressure gas enters the folded pipe 13 through the flow pipe 12 and then enters the inside of the air outlet shell 16 through the connecting pipe 14. It is then sprayed out by the air outlet 17. When the air outlet shell 16 moves up and down inside the filter bag 9, it facilitates the up and down movement of the high-pressure gas, thereby back-blowing the filter bag 9 and blowing the dust away from the outside of the filter bag 9. The dust falls into the conical shell 4 and is then discharged.

[0040] As the dust is blown away by the high-pressure gas, the hydraulic cylinder 24 is activated, and its output end presses down on the connecting block 23. The connecting block 23 drives the mounting frame 8, which in turn drives multiple filter bags 9 to move downward. When the output end moves back and forth, it facilitates the back and forth movement of the filter bags 9. At the same time, when the mounting frame 8 moves downward, it squeezes multiple connecting posts 28, causing the connecting posts 28 to drive the limiting circular plate 27 to slide inside the slot 25. At this time, the spring 26 is squeezed to generate a rebound force, which facilitates the vibration of other filter bags 9 within a limited range through the mounting frame 8, which helps to promote the falling of dust.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for purifying coke oven flue gas, comprising a purification frame (1), characterized in that: An exhaust pipe (2) is connected through the middle of one side of the purification frame (1), an air inlet pipe (3) is connected through the other side of the purification frame (1), a conical shell (4) is fixedly connected to the lower surface of the purification frame (1), a blocking cover (5) is provided on the lower surface of the conical shell (4), two support feet (6) are fixedly connected to both sides of the purification frame (1), an installation groove (7) is provided on the inner wall of the purification frame (1), an installation frame (8) is provided inside the installation groove (7), a plurality of support frames (10) are fixedly connected to the lower surface of the installation frame (8), a cloth bag body (9) is provided on the outside of the support frame (10), and a dust removal component is provided on the other side of the purification frame (1). The dust removal assembly includes an air compressor (11), which is fixedly installed on one side of the purification frame (1). The output end of the air compressor (11) is connected to a flow pipe (12), and the lower surface of the flow pipe (12) is connected to multiple folded pipes (13). The multiple folded pipes (13) penetrate the upper surface of the purification frame (1). One end of the folded tube (13) is connected to a connecting tube (14), and the multiple connecting tubes (14) are fixedly connected to each other. The lower surface of the connecting tube (14) is connected to multiple vent tubes (15), and one end of the vent tube (15) is fixedly connected to an air outlet shell (16). The outside of the air outlet shell (16) is provided with multiple air outlet holes (17). A connecting frame (18) is fixedly connected in the middle of the multiple connecting pipes (14), and a fixed shell (19) is fixedly connected on the other side of the purification frame (1). A stepper motor (20) is fixedly installed on the upper surface of the fixed shell (19), and a screw (21) is fixedly connected to the output end of the stepper motor (20). The connecting frame (18) is threaded to the outside of the screw (21), and the connecting frame (18) is slidably connected to the inside of the fixed shell (19).

2. The installation for the purification of the flue gases of a coke oven according to claim 1, characterized in that: A shaking component is provided on one side of the purification frame (1). The shaking component includes a connecting groove (22). The connecting groove (22) is opened on one side of the purification frame (1). A connecting block (23) is slidably connected inside the connecting groove (22).

3. The installation for the purification of the flue gases of a coke oven according to claim 2, characterized in that: A hydraulic cylinder (24) is fixedly installed on one side of the purification frame (1), and the connecting block (23) is fixedly connected to the output end of the hydraulic cylinder (24). Multiple holes (25) are opened on the lower surface of the mounting groove (7), and springs (26) are fixedly connected inside the holes (25).

4. The installation for the purification of the flue gases of a coke oven according to claim 3, characterized in that: One end of the spring (26) is fixedly connected to a limiting circular plate (27), and a connecting post (28) is fixedly connected to the upper surface of the limiting circular plate (27). Multiple connecting posts (28) are fixedly connected to the lower surface of the mounting frame (8), and a limiting ring (29) is fixedly connected to the inner wall of the slot (25).

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