A coking flue gas desulfurization, denitrification and dust removal device

Abstract

The utility model discloses a desulfurization, denitration and dust removal device for coking flue gas, comprising a filter box, a dust reduction box fixedly connected to the side surface thereof, an opening provided on the front surface of the filter box, a maintenance door rotatably connected to the inner wall of the filter box opening, a mounting bracket provided on the inner wall of the filter box cavity, an opening provided on the surface of the mounting bracket, and a filter plate connected to the inner wall of the mounting bracket opening, and a cavity provided inside the dust reduction box. The desulfurization, denitration and dust removal device for coking flue gas is provided with a linkage piston column and a sealing airbag, so that when the device is working, the mounting bracket is disassembled and assembled through the positioning slide rail of the filter box, so that the mounting bracket drives the first magnet to approach and repel the second magnet, so that the second magnet drives the linkage piston column to slide, and air is pushed into the sealing airbag through the linkage piston column, so that the sealing airbag expands and fits the surface of the mounting bracket and the filter plate, thereby improving the sealing performance and preventing wear from affecting the sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of coking flue gas treatment, in particular to a coking flue gas desulfurization, denitrification and dust removal device. Background Art

[0002] Coking generally refers to the process of carbonization and coking of organic matter. In coal distillation, it refers to high-temperature distillation. In petroleum processing, coking is the abbreviation of residual oil coking, which refers to the process of deep cracking and condensation of heavy oils such as heavy oil, vacuum residue oil, cracked residue oil and even asphalt at a high temperature of about 500°C to produce gas, gasoline, diesel, wax oil and petroleum coke. Coking mainly includes five processes: delayed coking, kettle coking, open-hearth coking, fluidized coking and flexible coking. The production process of steel coking plants is often accompanied by the generation and treatment of flue gas. If the smoke in the flue gas is not removed in time, it will block the equipment pipeline and affect the normal production of the steel coking plant. The sulfur dioxide and nitrogen oxides in the coke oven flue gas generated by coke oven heating are important sources of pollutants in coking production. Due to long-term extensive development, it has had a serious impact on the quality of the ecological environment and will lead to a series of environmental problems. Therefore, it is necessary to carry out desulfurization and denitrification processes for coking flue gas.

[0003] Coking flue gas contains a large amount of dust generated during combustion. The existing coking flue gas desulfurization and denitrification devices only desulfurize and denitrify the coking flue gas during desulfurization and denitrification operations. The dust in the coking flue gas will also enter the desulfurization and denitrification devices, which will affect the desulfurization and denitrification process. If the dust is not handled for a long time, it will accumulate inside the device, affecting the desulfurization and denitrification efficiency and damaging the device. When the existing dust removal device is working, solid particulate impurities are generally separated and collected through a filtering mechanism. However, when the filter frame needs to be maintained and replaced, the connection between the frame and the box body is prone to wear, affecting the filtering effect. Utility Model Content

[0004] The utility model aims to provide a coking flue gas desulfurization, denitrification and dust removal device to solve the problem in the above background technology that when the filter frame needs to be maintained and replaced, the connection between the frame and the box body is easily worn and affects the filtering effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coking flue gas desulfurization, denitrification and dust removal device, comprising a filter box, a dust reduction box is fixedly connected to its side surface, an opening is arranged on the front surface of the filter box, a maintenance door is rotatably connected to the inner wall of the filter box opening, a mounting frame is arranged on the inner wall of the filter box cavity, an opening is arranged on the surface of the mounting frame, and a filter plate is connected to the inner wall of the mounting frame opening, a cavity is arranged inside the dust reduction box, and a spray connection frame is arranged on the top surface of the dust reduction box cavity, and a flue gas filter is installed through the upper surface of the dust reduction box. The filter box has an air outlet, and the lower end side surface of the dust reduction box is penetrated by a waste liquid outlet. The surface of the mounting frame is provided with a groove, and the inner wall of the mounting frame groove is fixedly connected to a first magnet. The inner wall of the filter box is provided with a groove, and the inner wall of the filter box groove is slidably connected to a linkage piston column, and one end of the linkage piston column is fixedly connected to a second magnet. The inner wall of the filter box cavity is fixedly connected to a sealing air bag, and an auxiliary dust reduction mechanism is provided inside the dust reduction box, which attracts the fourth magnet through the third magnet to drive the spray connecting frame to move and pushes the material blocking plate to slide through the extrusion block.

[0006] Preferably, a feed port is provided on the upper surface of the filter box, the filter box is connected with the dust reduction box, and a limit block with an inclined surface is fixed on the bottom surface of the opening between the filter box and the dust reduction box, a positioning slide rail is provided on the inner wall of the filter box cavity, and the mounting frame is slidably connected with the positioning slide rail of the filter box, spray nozzles are evenly arranged on the lower surface of the spray connecting frame, and a water inlet hose is connected to the upper end of the spray connecting frame.

[0007] By adopting the above technical solution, the filter box is connected with the dust suppression box to facilitate the flow of smoke, and the mounting frame is installed through the positioning slide rail of the filter box.

[0008] Preferably, the magnetic poles of the first magnet and the second magnet facing each other are the same, a spring is connected between the linkage piston column and the filter box, the linkage piston column is connected to the sealing airbag, and the sealing airbag is a double-layer design.

[0009] By adopting the above technical solution, the first magnet and the second magnet can easily drive the linkage piston column to inflate the sealed airbag.

[0010] Preferably, the auxiliary dust reduction mechanism includes a positioning column, which is fixedly connected to the top surface of the dust reduction box cavity, a driving motor is fixed to the upper surface of the dust reduction box, the inner wall of the positioning column cavity is rotatably connected to a transmission column, a third magnet is fixedly connected to the front surface of the upper end of the transmission column, an opening is provided on the surface of the spray connecting frame, and a connecting column is provided on the inner wall of the opening of the spray connecting frame, a fourth magnet is fixed to one end of the connecting column of the spray connecting frame, an extrusion block is fixed to the front surface of the lower end of the transmission column, an opening is provided on the side surface of the lower end of the positioning column, and two material blocking plates are slidably connected to the inner wall of the opening at the lower end of the positioning column.

[0011] By adopting the above technical solution, the driving motor drives the transmission column to rotate, so that the transmission column drives the fourth magnet to move through the third magnet.

[0012] Preferably, the upper end of the transmission column passes through the positioning column and the surface of the dust reduction box, and the upper end of the transmission column is fixedly connected to the output end of the driving motor.

[0013] By adopting the above technical solution, the upper end of the transmission column is driven to rotate by the output end of the driving motor, so that the third magnet repels the fourth magnet.

[0014] Preferably, the magnetic poles of the third magnet and the fourth magnet facing each other are the same, the spray connection frame is slidably connected to the positioning column via a connecting column, and a spring is connected between the spray connection frame and the positioning column.

[0015] By adopting the above technical solution, the spray connection frame is driven to slide by the fourth magnet, so that the spray connection frame sprays cleaning water.

[0016] Preferably, the side surface of the extrusion block is designed to be inclined, a spring is connected between the material blocking plate and the positioning column, one end of the material blocking plate is designed to be arc-shaped, and a spherical protrusion is provided on the lower surface of the material blocking plate near one end of the transmission column.

[0017] By adopting the above technical solution, the extrusion block is tilted so that the movement of the tilted design can push the spherical protrusion of the material retaining plate.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the coking flue gas desulfurization, denitrification and dust removal device:

[0019] 1. A linkage piston column and a sealing airbag are provided. When the device is working, the mounting frame is disassembled and assembled through the positioning slide rail of the filter box, so that the mounting frame drives the first magnet to approach and repel the second magnet, so that the second magnet drives the linkage piston column to slide, and the air is pushed into the sealing airbag through the linkage piston column, so that the sealing airbag expands and fits the surface of the mounting frame and the filter plate, thereby improving the sealing performance and preventing wear from affecting the sealing effect;

[0020] 2. A third magnet and a spray connection frame are provided, so that when the device is working, the driving motor drives the transmission column to rotate, so that the transmission column drives the third magnet to rotate cyclically corresponding to the two fourth magnets, so that the two fourth magnets are cyclically repelled, and the spray connection frame is driven by the two fourth magnets to slide horizontally, so that the cleaning liquid sprayed by the spray connection frame is more uniform, thereby improving the dust reduction effect of the device;

[0021] 3. An extrusion block and a material-blocking plate are provided. When the device is working, the rotation of the transmission column drives the extrusion block to rotate, and the spherical protrusion of the material-blocking plate is squeezed by the inclined surface of the extrusion block, so that the material-blocking plate is pushed up and pushed down and reset by a spring, so that the material-blocking plate vibrates to stir the smoke, thereby reducing the flow efficiency of the smoke and increasing the dust reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the connection between the filter box and the dust suppression box of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the filter box and the mounting frame of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the linkage piston column and the second magnet connected to the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the connection between the mounting frame and the filter plate of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the connection between the transmission column and the extrusion block of the utility model;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the spray connection frame and the fourth magnet connected to the utility model.

[0028] In the figure: 1. filter box; 2. dust suppression box; 3. maintenance door; 4. mounting frame; 5. filter plate; 6. spray connection frame; 7. first magnet; 8. linkage piston column; 9. second magnet; 10. sealing airbag; 11. positioning column; 12. drive motor; 13. transmission column; 14. third magnet; 15. fourth magnet; 16. extrusion block; 17. material blocking plate; 18. smoke outlet; 19. waste liquid outlet. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6The utility model provides a technical solution: a coking flue gas desulfurization, denitrification and dust removal device, including a filter box 1, a dust reduction box 2, a maintenance door 3, a mounting frame 4, a filter plate 5, a spray connection frame 6, a first magnet 7, a linkage piston column 8, a second magnet 9, a sealing airbag 10, a positioning column 11, a drive motor 12, a transmission column 13, a third magnet 14, a fourth magnet 15, an extrusion block 16, a material blocking plate 17, a flue gas outlet 18 and a waste liquid outlet 19, the filter box 1, a side surface of which is fixedly connected with the dust reduction box 2, the upper surface of the filter box 1 is provided with a feed port, the filter box 1 is connected with the dust reduction box 2, and the bottom surface of the opening between the filter box 1 and the dust reduction box 2 is fixed with a limit block with an inclined surface, and the inner wall of the cavity of the filter box 1 A positioning slide rail is provided, and the mounting frame 4 is slidably connected with the positioning slide rail of the filter box 1. Spray nozzles are evenly arranged on the lower surface of the spray connecting frame 6, and a water inlet hose is connected to the upper end of the spray connecting frame 6. When using the device, the mounting frame 4 and the filter plate 5 are conveniently disassembled and assembled by rotating the maintenance door 3. The positioning slide rail of the filter box 1 is convenient for positioning the mounting frame 4 and reducing wear to ensure sealing. The flue gas is introduced through the feed port of the filter box 1, so that the filter plate 5 collects particulate impurities, and then the flue gas enters the dust reduction box 2 from the bottom. Then the spray connecting frame 6 discharges the cleaning liquid from the spray nozzle at the lower end through the hose, which is convenient for dust reduction of the flue gas. Finally, the cleaned flue gas is rejected from the flue gas outlet 18, and the waste liquid is discharged from the waste liquid outlet 19.

[0031] An opening is provided on the front surface of the filter box 1, and a maintenance door 3 is rotatably connected to the inner wall of the opening of the filter box 1. A mounting bracket 4 is provided on the inner wall of the cavity of the filter box 1, and an opening is provided on the surface of the mounting bracket 4, and a filter plate 5 is connected to the inner wall of the opening of the mounting bracket 4. The first magnet 7 and the second magnet 9 have the same magnetic pole at one end facing each other. A spring is connected between the linkage piston column 8 and the filter box 1, and the linkage piston column 8 is connected to the sealing airbag 10, and the sealing airbag 10 is a double-layer design. When the mounting bracket 4 is installed, the mounting bracket 4 drives the first magnet 7 on the inner wall of the groove to slide close to the second magnet 9, so that the second magnet 9 is repelled and then drives the linkage piston column 8 to slide, so that the linkage piston column 8 pushes air into the sealing airbag 10, so that the sealing airbag 10 is expanded to fit the mounting bracket 4 and the filter plate 5 to improve the sealing performance.

[0032] A cavity is provided inside the dust reduction box 2, and a spray connection frame 6 is provided on the top surface of the cavity of the dust reduction box 2. The auxiliary dust reduction mechanism includes a positioning column 11, which is fixedly connected to the top surface of the cavity of the dust reduction box 2. A driving motor 12 is fixed on the upper surface of the dust reduction box 2. A transmission column 13 is rotatably connected to the inner wall of the cavity of the positioning column 11. A third magnet 14 is fixedly connected to the front surface of the upper end of the transmission column 13. An opening is provided on the surface of the spray connection frame 6, and a connecting column is provided on the inner wall of the opening of the spray connection frame 6. A fourth magnet 15 is fixed to one end of the connecting column of the spray connection frame 6. The lower end of the transmission column 13 is fixedly connected to the transmission column 13. An extrusion block 16 is fixed on the front surface, an opening is provided on the side surface of the lower end of the positioning column 11, and the inner wall of the opening at the lower end of the positioning column 11 is slidably connected with two material blocking plates 17. When working, the transmission column 13 is driven to rotate by the driving motor 12, so that the transmission column 13 drives the third magnet 14 to rotate, so that the third magnet 14 circulates and corresponds to the two fourth magnets 15, so that the two fourth magnets 15 are repelled in turn, so that the two fourth magnets 15 drive the spray connecting frame 6 to slide horizontally, and the reciprocating sliding of the spray connecting frame 6 makes the cleaning liquid sprayed out more uniform, thereby improving the dust reduction effect.

[0033] A flue gas outlet 18 is installed on the upper surface of the dust reduction box 2, and a waste liquid outlet 19 is installed on the lower end side surface of the dust reduction box 2. A groove is provided on the surface of the mounting frame 4, and the inner wall of the groove of the mounting frame 4 is fixedly connected to the first magnet 7. A groove is provided on the inner wall of the filter box 1, and the inner wall of the groove of the filter box 1 is slidably connected to the linkage piston column 8. The upper end of the transmission column 13 penetrates the positioning column 11 and the surface of the dust reduction box 2, and the upper end of the transmission column 13 is fixedly connected to the output end of the drive motor 12. The third magnet 14 and the fourth magnet 15 have the same magnetic poles at one end facing each other. The spray connecting frame 6 is slidably connected to the positioning column 11 through the connecting column, and a spring is connected between the spray connecting frame 6 and the positioning column 11. When the transmission column 13 rotates, the two extrusion blocks 16 are driven to rotate, so that when the extrusion block 16 rotates close to the material blocking disk 17, the inclined surface of the extrusion block 16 will contact the spherical protrusion on the lower surface of one end of the material blocking disk 17.

[0034] One end of the linkage piston column 8 is fixedly connected to the second magnet 9, and the inner wall of the cavity of the filter box 1 is fixedly connected to the sealing airbag 10. An auxiliary dust reduction mechanism is arranged inside the dust reduction box 2, which attracts the fourth magnet 15 through the third magnet to drive the spray connecting frame 6 to move and pushes the blocking plate 17 to slide through the extrusion block 16. The side surface of the extrusion block 16 is inclined, and a spring is connected between the blocking plate 17 and the positioning column 11. One end of the blocking plate 17 is arc-shaped, and a spherical protrusion is arranged on the lower surface of the blocking plate 17 near one end of the transmission column 13. The spherical protrusion of the blocking plate 17 is pushed by the inclined surface of the extrusion block 16 to touch the blocking plate 17, so that the blocking plate 17 slides up. After the extrusion block 16 passes through the blocking plate 17, the blocking plate 17 is pushed down by the spring on the surface, so that the blocking plate 17 swings, which is convenient for the blocking plate 17 to stir the smoke, thereby reducing the speed of the smoke movement, facilitating increasing the smoke residence time and thus improving the dust reduction effect.

[0035] Working principle: When using the coking flue gas desulfurization, denitrification and dust removal device, first turn the maintenance door 3 to facilitate the installation of the mounting frame 4 and the filter plate 5, so that the first magnet 7 approaches and repels the second magnet 9, and the second magnet 9 drives the linkage piston column 8 to slide and push the air into the sealing airbag 10 to expand and seal it, and the driving motor 12 drives the transmission column 13 to rotate, so that the transmission column 13 drives the third magnet 14 to rotate and repels the fourth magnet 15, and the fourth magnet 15 drives the spray connecting frame 6 to slide, so that the spray connecting frame 6 can spray evenly, and the rotation of the transmission column 13 drives the extrusion block 16 to push the material blocking plate 17, so that the material blocking plate 17 vibrates and stirs the flue gas to improve the dust reduction effect, and finally the flue gas is discharged from the flue gas outlet 18, and the waste liquid is discharged from the waste liquid outlet 19, thereby increasing the overall practicality.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coking flue gas desulfurization, denitrification and dust removal device, comprising a filter box (1), a side surface of which is fixedly connected to a dust reduction box (2), characterized in that: The front surface of the filter box (1) is provided with an opening, the inner wall of the opening of the filter box (1) is rotatably connected to a maintenance door (3), the inner wall of the cavity of the filter box (1) is provided with a mounting frame (4), the surface of the mounting frame (4) is provided with an opening, and the inner wall of the opening of the mounting frame (4) is connected to a filter plate (5), the interior of the dust reduction box (2) is provided with a cavity, and the top surface of the cavity of the dust reduction box (2) is provided with a spray connection frame (6), the upper surface of the dust reduction box (2) is penetrated by a smoke outlet (18), the lower end side surface of the dust reduction box (2) is penetrated by a waste liquid outlet (19), and the mounting frame The surface of the filter box (4) is provided with a groove, the inner wall of the groove of the mounting frame (4) is fixedly connected with a first magnet (7), the inner wall of the filter box (1) is provided with a groove, and the inner wall of the groove of the filter box (1) is slidably connected with a linkage piston column (8), one end of the linkage piston column (8) is fixedly connected with a second magnet (9), the inner wall of the cavity of the filter box (1) is fixedly connected with a sealing airbag (10), and an auxiliary dust reduction mechanism is provided inside the dust reduction box (2), which attracts the fourth magnet (15) by the third magnet to drive the spray connection frame (6) to move and pushes the blocking plate (17) to slide through the extrusion block (16).

2. The desulfurization, denitrification and dust removal device for coking flue gas according to claim 1, characterized in that: The filter box (1) is provided with a feed port on its upper surface, the filter box (1) is connected to the dust suppression box (2), and a limit block with an inclined surface is fixed to the bottom surface of the opening between the filter box (1) and the dust suppression box (2), the inner wall of the cavity of the filter box (1) is provided with a positioning slide rail, the mounting frame (4) is slidably connected to the positioning slide rail of the filter box (1), the lower surface of the spray connection frame (6) is evenly provided with spray nozzles, and the upper end of the spray connection frame (6) is connected to a water inlet hose.

3. The desulfurization, denitrification and dust removal device for coking flue gas according to claim 1, characterized in that: The magnetic poles of the first magnet (7) and the second magnet (9) facing each other are the same, a spring is connected between the linkage piston column (8) and the filter box (1), the linkage piston column (8) is connected to the sealing airbag (10), and the sealing airbag (10) is a double-layer design.

4. The desulfurization, denitrification and dust removal device for coking flue gas according to claim 1, characterized in that: The auxiliary dust reduction mechanism comprises a positioning column (11), which is fixedly connected to the top surface of the cavity of the dust reduction box (2), a driving motor (12) is fixed to the upper surface of the dust reduction box (2), the inner wall of the cavity of the positioning column (11) is rotatably connected to a transmission column (13), the upper front surface of the transmission column (13) is fixedly connected to a third magnet (14), the surface of the spray connection frame (6) is provided with an opening, and the inner wall of the opening of the spray connection frame (6) is provided with a connecting column, one end of the connecting column of the spray connection frame (6) is fixed with a fourth magnet (15), the lower front surface of the transmission column (13) is fixed with an extrusion block (16), the lower side surface of the positioning column (11) is provided with an opening, and the inner wall of the opening of the lower end of the positioning column (11) is slidably connected to two material blocking plates (17).

5. A coking flue gas desulfurization, denitrification and dust removal device according to claim 4, characterized in that: The upper end of the transmission column (13) penetrates the positioning column (11) and the surface of the dust reduction box (2), and the upper end of the transmission column (13) is fixedly connected to the output end of the drive motor (12).

6. A coking flue gas desulfurization, denitrification and dust removal device according to claim 4, characterized in that: The magnetic poles of the third magnet (14) and the fourth magnet (15) facing each other are the same, the spray connection frame (6) is slidably connected to the positioning column (11) via a connecting column, and a spring is connected between the spray connection frame (6) and the positioning column (11).

7. The desulfurization, denitrification and dust removal device for coking flue gas according to claim 4, characterized in that: The side surface of the extrusion block (16) is designed to be inclined, a spring is connected between the blocking plate (17) and the positioning column (11), one end of the blocking plate (17) is designed to be arc-shaped, and a spherical protrusion is provided on the lower surface of the blocking plate (17) near one end of the transmission column (13).

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