Waste gas treatment device of thermal power plant

Abstract

The waste gas treatment device comprises a waste gas treatment box, a gas inlet pipe is fixedly connected to the left side of the waste gas treatment box, a moving groove is formed in the front face of the waste gas treatment box, and mounting grooves formed in the front face of the waste gas treatment box are formed in the two sides of the moving groove; and an exhaust gas refiltering device is arranged in the moving groove and comprises a filtering box. According to the waste gas refiltering device disclosed by the utility model, a plurality of filtering plates made of different materials are arranged in the waste gas refiltering device so as to effectively carry out deep filtering treatment on waste gas subjected to desulfurization and denitrification, and the device can conveniently dismount, replace and clean the plurality of filtering plates, so that the influence on the filtering process due to the blockage of a filtering net can be prevented; and meanwhile, a spraying structure arranged on the device can adsorb and cool high-temperature waste gas, so that the problem of low filtering quality caused by damage of the high-temperature flue gas to the whole equipment and a filtering plate is avoided.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment devices, and more specifically, to a waste gas treatment device for a thermal power plant. Background Art

[0002] Thermal power plants usually generate a large amount of waste gas during operation. These harmful substances are discharged into the atmosphere without treatment, which will cause air pollution and harm human health, including respiratory diseases. These harmful substances will also pollute the environment and affect plant growth and water quality. Existing waste gas treatment devices are difficult to re-filter waste gas, and these devices are also inconvenient to clean and replace the filter parts, resulting in poor waste gas filtration quality;

[0003] After searching, the existing patent (publication number: CN219964481 U) discloses a waste gas treatment device for a thermal power plant, including a device body and a support column, a telescopic column is connected to the top of the support column, and the device body is connected to the top of the telescopic column, an exhaust port is opened on the top of the device body, and a first drive motor is connected to the bottom of the device body, and one end of the first drive motor is connected to a meshing gear, the outer side of the meshing gear is connected to a rotating shell, a stirring block is fixed to the outer side of the rotating shell, and a fixed block is connected to the bottom of the rotating shell, and a stirring column is connected to the top of the meshing gear. Two pluggable filter shells are arranged inside the device body, which are driven by a third drive motor. When the machine is working, it can be cleaned by manual cleaning, which ensures the quality of cleaning. At the same time, a single cleaning machine can work normally, which improves the work efficiency.

[0004] In the existing waste gas treatment device, when filtering waste gas, the waste gas with too high temperature will affect the filter material inside the device and the whole device, thus resulting in poor filtering quality. In addition, the filter material of the traditional device is single, which cannot filter the waste gas deeply. Moreover, the device is not convenient for replacing and cleaning the filter part. Therefore, it is necessary to set up a waste gas re-filtering device that can be disassembled and replaced. Different filter plates can be installed according to actual conditions. The flue gas after desulfurization and denitrification can be deeply filtered through multi-layer filter screens. In addition, the device is easy to disassemble and the filter plate can be conveniently replaced to prevent the filter screen from clogging and affecting the filtering efficiency. The spray adsorption cooling structure set in the device can adsorb and cool the particles in the flue gas to prevent the high-temperature flue gas from damaging the equipment.

[0005] Therefore, in order to solve the above problems, an exhaust gas treatment device for a thermal power plant is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides an exhaust gas treatment device for a thermal power plant to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste gas treatment device for a thermal power plant, comprising a waste gas treatment box, an air intake pipe is fixedly connected to the left side of the waste gas treatment box, a movable groove is provided on the front side of the waste gas treatment box, mounting grooves are provided on both sides of the movable groove and are provided on the front side of the waste gas treatment box, a waste gas re-filtration device is provided inside the movable groove, the waste gas re-filtration device comprises a filter box, a mounting block is fixedly connected to the side of the filter box, a handle is fixedly connected to the front of the filter box, a limiting groove is provided above the filter box, a locking groove is provided on the inner wall of the bottom of the filter box, and a glass fiber filter plate, a ceramic filter plate and an activated carbon filter plate are movably connected inside the filter box.

[0008] Preferably, the filter box is fitted with the inner wall of the movable groove, the mounting block is arranged inside the mounting groove, and the mounting block is fitted with the inner wall of the mounting groove.

[0009] Preferably, the limiting groove and the engaging groove have the same length and width, the glass fiber filter plate fits with the inner wall of the limiting groove, and the glass fiber filter plate has the same shape and size as the ceramic filter plate and the activated carbon filter plate.

[0010] Preferably, a water tank is fixedly connected above the exhaust gas treatment box, a water inlet pipe is fixedly connected to the front of the water tank, an equipment box fixedly connected to the inner wall of the exhaust gas treatment box is provided below the bottom of the water tank, a booster pump is fixedly connected inside the equipment box, and the input end of the booster pump is fixedly connected to the water tank.

[0011] Preferably, a spray bin is fixedly connected to the bottom of the equipment box, a plurality of atomizing nozzles are fixedly connected to the bottom of the spray bin, an inclined plate fixedly connected to the inner wall of the exhaust gas treatment box is arranged below the atomizing nozzle, and a wastewater discharge pipe is fixedly connected to the bottom of the exhaust gas treatment box.

[0012] Preferably, a desulfurization device fixedly connected to the top of the exhaust gas treatment box is provided on the right side of the water storage tank, a desulfurization reaction chamber fixedly connected to the inner wall of the exhaust gas treatment box is provided below the desulfurization device, a denitrification device fixedly connected to the top of the exhaust gas treatment box is provided on the right side of the desulfurization device, and a denitrification reaction chamber fixedly connected to the inner wall of the exhaust gas treatment box is provided below the denitrification device.

[0013] Preferably, an induced draft fan is fixedly connected to the right side of the exhaust gas treatment box, and an exhaust duct is fixedly connected above the induced draft fan.

[0014] Preferably, a support column is fixedly connected to the bottom of the exhaust gas treatment box, and a controller is fixedly connected to the front of the exhaust gas treatment box.

[0015] Technical effects and advantages of the utility model:

[0016] 1. Compared with the prior art, the exhaust gas treatment device of the thermal power plant effectively performs deep filtration treatment on the exhaust gas after desulfurization and denitrification by setting multiple filter plates of different materials inside the exhaust gas re-filtration device, and the device can conveniently disassemble, replace and clean multiple filter plates, which can prevent the filter from being blocked and affecting the filtration process. At the same time, the spray structure set in the device can adsorb and cool the high-temperature exhaust gas to prevent the high-temperature flue gas from damaging the entire equipment and the filter plate, resulting in poor filtration quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the installation part of the utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the waste gas re-filtering device of the utility model.

[0021] The accompanying drawings are marked as follows: 1. exhaust gas treatment box; 2. air inlet pipe; 3. moving groove; 4. mounting groove; 5. exhaust gas re-filtration device; 501. filter box; 502. mounting block; 503. handle; 504. limiting groove; 505. locking groove; 506. glass fiber filter plate; 507. ceramic filter plate; 508. activated carbon filter plate; 6. water storage tank; 7. water inlet pipe; 8. equipment box; 9. booster pump; 10. spray chamber; 11. atomizing nozzle; 12. tilting plate; 13. wastewater discharge pipe; 14. desulfurization device; 15. desulfurization reaction chamber; 16. denitrification device; 17. denitrification reaction chamber; 18. induced draft fan; 19. exhaust duct; 20. support column; 21. controller. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1

[0024] As attached Figure 1 and Figure 4 The waste gas treatment device of a thermal power plant shown in the figure includes a waste gas treatment box 1, an air intake pipe 2 is fixedly connected to the left side of the waste gas treatment box 1, a movable groove 3 is opened on the front of the waste gas treatment box 1, and mounting grooves 4 opened on the front of the waste gas treatment box 1 are arranged on both sides of the movable groove 3, and a waste gas re-filtering device 5 is arranged inside the movable groove 3. The waste gas re-filtering device 5 includes a filter box 501, a mounting block 502 is fixedly connected to the side of the filter box 501, a handle 503 is fixedly connected to the front of the filter box 501, a limiting groove 504 is opened above the filter box 501, and a locking groove 505 is opened on the inner wall of the bottom of the filter box 501. A glass fiber filter plate 506, a ceramic filter plate 507 and an activated carbon filter plate 508 are movably connected inside the filter box 501.

[0025] Among them: the glass fiber filter plate 506, the ceramic filter plate 507 and the activated carbon filter plate 508 are respectively moved to the inside of the filter box 501 through the limiting groove 504, and then the bottoms of the three filter plates are clamped in the inside of the clamping groove 505. After the filter plate is replaced or cleaned, the filter box 501 is moved, and the filter box 501 is moved to the inside of the exhaust gas treatment box 1 through the moving groove 3, and then the filter box 501 is fixed by matching the mounting block 502 with the mounting groove 4. After the fixing is completed, the exhaust gas is discharged to the inside of the exhaust gas treatment box 1 through the intake pipe 2. After desulfurization and denitrification treatment, it will be filtered through the three filter plates, and the smoke particles, harmful substances and odors in the exhaust gas will be filtered respectively. Finally, the clean gas is discharged into the air. The device is provided with multiple layers of filter plates, which can effectively re-filter the exhaust gas, so that the gas filtration quality is higher, and the environment can be better protected at the same time. The device is convenient for disassembly and replacement of the filter plate, so as to prevent the filter plate from being blocked and affecting the exhaust gas filtration work.

[0026] Embodiment 2

[0027] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0028] As a preferred embodiment, the filter box 501 is fitted with the inner wall of the movable groove 3, the mounting block 502 is arranged inside the mounting groove 4, and the mounting block 502 is fitted with the inner wall of the mounting groove 4; further, the filter box 501 can be moved to the inside of the equipment through the movable groove 3, and the filter box 501 can be fixed by cooperating with the mounting block 502 and the mounting groove 4.

[0029] As a preferred embodiment, the limiting groove 504 has the same length and width as the locking groove 505, the glass fiber filter plate 506 is in contact with the inner wall of the limiting groove 504, and the glass fiber filter plate 506 has the same shape and size as the ceramic filter plate 507 and the activated carbon filter plate 508; further, the three filter plates can be moved and fixed by the limiting groove 504 and the locking groove 505.

[0030] As a preferred embodiment, a water tank 6 is fixedly connected above the exhaust gas treatment box 1, a water inlet pipe 7 is fixedly connected to the front of the water tank 6, and an equipment box 8 fixedly connected to the inner wall of the exhaust gas treatment box 1 is arranged below the bottom of the water tank 6. A booster pump 9 is fixedly connected inside the equipment box 8, and the input end of the booster pump 9 is fixedly connected to the water tank 6; further, water is stored in the water tank 6 through the water inlet pipe 7, and then the water flow in the water tank 6 is discharged to the inside of the equipment through the booster pump 9.

[0031] As a preferred embodiment, a spray bin 10 is fixedly connected to the bottom of the equipment box 8, a plurality of atomizing nozzles 11 are fixedly connected to the bottom of the spray bin 10, an inclined plate 12 fixedly connected to the inner wall of the exhaust gas treatment box 1 is arranged below the atomizing nozzle 11, and a wastewater discharge pipe 13 is fixedly connected to the bottom of the exhaust gas treatment box 1; further, water inside the spray bin 10 is sprayed through the atomizing nozzle 11, and then the water mist will be adsorbed with the particles in the high-temperature exhaust gas, and the adsorbed mixture will be drained through the inclined plate 12 to the position of the wastewater discharge pipe 13 for discharge, and this part structure can cool down and adsorb the exhaust gas.

[0032] As a preferred embodiment, a desulfurization device 14 fixedly connected to the top of the exhaust gas treatment box 1 is provided on the right side of the water storage tank 6, a desulfurization reaction chamber 15 fixedly connected to the inner wall of the exhaust gas treatment box 1 is provided below the desulfurization device 14, a denitrification device 16 fixedly connected to the top of the exhaust gas treatment box 1 is provided on the right side of the desulfurization device 14, and a denitrification reaction chamber 17 fixedly connected to the inner wall of the exhaust gas treatment box 1 is provided below the denitrification device 16; further, starting the desulfurization device 14 will spray the desulfurization agent inside the desulfurization reaction chamber 15, and then mix it with the exhaust gas for desulfurization, the exhaust gas after desulfurization will be discharged into the denitrification reaction chamber 17, and then mixed with the denitrification agent sprayed by the denitrification device 16 for denitrification treatment, and after denitrification, the flue gas will move to the re-filtration position.

[0033] As a preferred embodiment, an induced draft fan 18 is fixedly connected to the right side of the exhaust gas treatment box 1, and an exhaust duct 19 is fixedly connected above the induced draft fan 18; further, the induced draft fan 18 is used to induce air inside the equipment, and the filtered flue gas will be discharged through the exhaust duct 19.

[0034] As a preferred embodiment, a support column 20 is fixedly connected to the bottom of the exhaust gas treatment box 1, and a controller 21 is fixedly connected to the front of the exhaust gas treatment box 1; further, the controller 21 is used to control the devices inside the equipment to work.

[0035] The working process of the utility model is as follows:

[0036] When performing exhaust gas treatment, first move the glass fiber filter plate 506, the ceramic filter plate 507 and the activated carbon filter plate 508 to the interior of the filter box 501 through the limiting groove 504 respectively, and then engage the bottoms of the three filter plates in the engaging groove 505. After the filter plates are replaced or cleaned, move the filter box 501, move the filter box 501 through the moving groove 3 to the interior of the exhaust gas treatment box 1, and then fix the filter box 501 by matching the mounting block 502 with the mounting groove 4. After the fixation is completed, connect the flue with the air intake pipe 2, start the induced draft fan 18 to work, and the exhaust gas will be discharged into the exhaust gas treatment box 1 through the air intake pipe 2. At this time, the booster pump 9 will pressurize the water in the water storage tank 6 and discharge it into the spray chamber 10, and then spray it through the atomizing nozzle 11. The water mist will react with the particles in the high-temperature exhaust gas. After adsorption, the adsorbed mixture will be drained to the wastewater discharge pipe 13 through the inclined plate 12 for discharge. The exhaust gas after cooling and adsorption will move to the desulfurization reaction chamber 15 and the denitrification reaction chamber 17. Then, the gas after desulfurization and denitrification will move to the exhaust gas re-filtration device 5. After filtering through the glass fiber filter plate 506, the ceramic filter plate 507 and the activated carbon filter plate 508, the smoke particles, harmful substances and odors in the exhaust gas are removed. The treated clean air will finally be discharged through the exhaust pipe 19. The device is provided with multiple layers of filter plates, which can effectively re-filter the exhaust gas, so that the gas filtration quality is higher, and the environment can be better protected. The device is easy to disassemble and replace the filter plate, so as to prevent the filter plate from being blocked and affecting the exhaust gas filtration work.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A waste gas treatment device for a thermal power plant, comprising a waste gas treatment box (1), characterized in that: The exhaust gas treatment box (1) is fixedly connected to an air intake pipe (2) on the left side, the exhaust gas treatment box (1) is provided with a movable groove (3) on the front side, and mounting grooves (4) are provided on both sides of the movable groove (3) and are provided on the front side of the exhaust gas treatment box (1). An exhaust gas re-filtering device (5) is provided inside the movable groove (3), and the exhaust gas re-filtering device (5) comprises a filter box (501), a mounting block (502) is fixedly connected to the side of the filter box (501), a handle (503) is fixedly connected to the front side of the filter box (501), a limiting groove (504) is provided on the top of the filter box (501), and a locking groove (505) is provided on the inner wall of the bottom of the filter box (501), and a glass fiber filter plate (506), a ceramic filter plate (507) and an activated carbon filter plate (508) are movably connected inside the filter box (501).

2. The exhaust gas treatment device of a thermal power plant according to claim 1, characterized in that: The filter box (501) fits in contact with the inner wall of the movable groove (3); the mounting block (502) is arranged inside the mounting groove (4); and the mounting block (502) fits in contact with the inner wall of the mounting groove (4).

3. The exhaust gas treatment device of a thermal power plant according to claim 1, characterized in that: The limiting groove (504) and the engaging groove (505) have the same length and width, the glass fiber filter plate (506) is in contact with the inner wall of the limiting groove (504), and the glass fiber filter plate (506) and the ceramic filter plate (507) and the activated carbon filter plate (508) have the same shape and size.

4. The exhaust gas treatment device of a thermal power plant according to claim 1, characterized in that: A water tank (6) is fixedly connected to the top of the waste gas treatment box (1), a water inlet pipe (7) is fixedly connected to the front of the water tank (6), and an equipment box (8) fixedly connected to the inner wall of the waste gas treatment box (1) is arranged below the bottom of the water tank (6), a booster pump (9) is fixedly connected inside the equipment box (8), and the input end of the booster pump (9) is fixedly connected to the water tank (6).

5. The exhaust gas treatment device of a thermal power plant according to claim 4, characterized in that: The bottom of the equipment box (8) is fixedly connected to a spray bin (10), the bottom of the spray bin (10) is fixedly connected to a plurality of atomizing nozzles (11), an inclined plate (12) fixedly connected to the inner wall of the waste gas treatment box (1) is arranged below the atomizing nozzles (11), and the bottom of the waste gas treatment box (1) is fixedly connected to a wastewater discharge pipe (13).

6. The exhaust gas treatment device for a thermal power plant according to claim 4, characterized in that: A desulfurization device (14) fixedly connected to the top of the exhaust gas treatment box (1) is arranged on the right side of the water storage tank (6); a desulfurization reaction chamber (15) fixedly connected to the inner wall of the exhaust gas treatment box (1) is arranged below the desulfurization device (14); a denitrification device (16) fixedly connected to the top of the exhaust gas treatment box (1) is arranged on the right side of the desulfurization device (14); a denitrification reaction chamber (17) fixedly connected to the inner wall of the exhaust gas treatment box (1) is arranged below the denitrification device (16).

7. The exhaust gas treatment device for a thermal power plant according to claim 1, characterized in that: The right side of the waste gas treatment box (1) is fixedly connected to an induced draft fan (18), and the top of the induced draft fan (18) is fixedly connected to an exhaust pipe (19).

8. The exhaust gas treatment device of a thermal power plant according to claim 1, characterized in that: The bottom of the exhaust gas treatment box (1) is fixedly connected to a support column (20), and the front of the exhaust gas treatment box (1) is fixedly connected to a controller (21).

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