Dry and wet integrated desulfurization and denitrification device

Abstract

The utility model relates to the technical field of gas treatment, in particular to a dry and wet integrated desulfurization and denitrification device which comprises a tower body, a mounting frame is fixedly mounted in the tower body, and a plurality of filter screens are fixedly mounted in the mounting frame at equal intervals; a gas collecting box is fixedly mounted on the surface of the tower body, a gas outlet is formed in the lower surface of the gas collecting box, a pressure valve is arranged in the gas outlet, a hollow rod is fixedly mounted on the lower surface of the gas collecting box, a plurality of gas holes are formed in the surface of the hollow rod, and the top end of the hollow rod covers the gas outlet; an inserting rod is inserted into the other end of the hollow rod in a sliding and sealing mode, a mounting plate is fixedly mounted at the end, located outside, of the inserting rod, and a plurality of impact rods are fixedly mounted on the surface of the mounting plate. The impact rods intermittently collide with the mounting frame, so that generated vibration can be transmitted to the filter screen, the vibration can promote dust and other impurities accumulated on the filter screen to fall off, and pores of the filter screen are kept unblocked.

Description

Technical Field

[0001] This utility model relates to the field of gas treatment technology, and in particular to an integrated dry and wet desulfurization and denitrification device. Background Technology

[0002] A desulfurization and denitrification device is a type of equipment used to purify flue gas. It can effectively remove sulfur and nitrates from the flue gas, reducing air pollution.

[0003] Chinese patent CN212215100U discloses a dry-wet integrated desulfurization and denitrification device, which can slow down the flow rate of flue gas to improve the device's flue gas treatment efficiency, prevent the purification liquid from being discharged into the outside world and causing pollution to the external environment, and prevent stains from adhering to the inner wall of the device and causing blockage, thereby affecting the desulfurization and denitrification of the flue gas.

[0004] After prolonged use, the multiple filters used in the aforementioned patent documents for purifying flue gas will accumulate a lot of impurities on their surfaces. These impurities may affect the air permeability of the filters, thus preventing the gas treatment process from proceeding normally. Utility Model Content

[0005] The purpose of this utility model is to solve the following shortcomings in the prior art: after a long period of use, the multiple filters used to purify flue gas in the existing dry and wet integrated desulfurization and denitrification device will have a lot of impurities attached to their surfaces, which may affect the air permeability of the filters, thus causing the gas treatment work to fail to proceed normally. Therefore, a dry and wet integrated desulfurization and denitrification device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dry-wet integrated desulfurization and denitrification device includes a tower body. An installation frame is fixedly installed inside the tower body. Multiple filter screens are fixedly installed at equal intervals within the installation frame. A first liquid inlet pipe is fixedly installed on the side wall of the tower body. One end of the first liquid inlet pipe penetrates into the tower body, and multiple nozzles are fixedly installed at equal intervals on its surface. An annular rotating shell is rotatably and sealingly connected to the end of the first liquid inlet pipe outside the tower body. A second liquid inlet pipe is rotatably and sealingly connected to the surface of the rotating shell away from the first liquid inlet pipe. A gas collection box is fixedly installed on the surface of the tower body, and an outlet is provided on the lower surface of the gas collection box. The air outlet is equipped with a pressure valve. An L-shaped hollow rod is fixedly installed on the lower surface of the air collection box. Multiple air holes are opened on the surface of the hollow rod. The top of the hollow rod covers the air outlet. A plug rod is slidably and sealed inside the other end of the hollow rod. An installation plate is fixedly installed on the external end of the plug rod. Multiple impact rods are fixedly installed on the surface of the installation plate. Multiple openings are opened on the side wall of the tower body. The installation plate is connected to the tower body through a telescopic component. An air supply component is provided on the surface of the air collection box for supplying air into the air collection box.

[0008] Preferably, the air supply assembly includes a mounting rod and a piston rod. One end of the mounting rod has an air groove, and the other end of the mounting rod is fixedly installed with an air outlet pipe. The piston rod is slidably and sealedly inserted into the air groove. The air outlet pipe is fixedly connected to the air collection box. An air inlet pipe is fixedly installed on the surface of the mounting rod. Both the air outlet pipe and the air inlet pipe are equipped with one-way valves. The piston rod is controlled to move laterally by a transmission assembly.

[0009] Preferably, the telescopic component includes two symmetrically fixed sliding rods installed on the side wall of the tower body and two telescopic springs respectively sleeved on the two sliding rods. The mounting plate is slidably sleeved on the two sliding rods. An mounting block is fixedly installed at one end of each sliding rod. The two ends of the telescopic springs are fixedly connected to the mounting block and the mounting plate respectively.

[0010] Preferably, the transmission assembly includes a reciprocating screw horizontally rotatably mounted on the side wall of the tower body and a sliding plate threaded onto the reciprocating screw. The surface of the sliding plate is fixedly connected to one end of the piston rod. Both the reciprocating screw and the rotating shell are fixedly fitted with sprockets. Chains are meshed and wound on the two sprockets. A rotating impeller is fixedly installed on the inner wall of the rotating shell.

[0011] Preferably, the one-way valve in the outlet pipe is directed from the air groove to the air collection box, and the one-way valve in the inlet pipe is directed from the outside to the air groove.

[0012] Preferably, the plurality of openings correspond to the positions of the plurality of filter screens, and the plurality of impact rods correspond to the positions of the plurality of openings.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] When the purified liquid is sprayed from multiple nozzles, the air supply component intermittently collects air into the air collection box, causing the insert rod to intermittently move along with the mounting plate and multiple impact rods. As the impact rods move, they collide with the mounting frame, and the resulting vibration is transmitted to the filter screen. This vibration causes the dust and other impurities accumulated on the filter screen to fall off, keeping the filter screen pores unobstructed, allowing the flue gas to continuously and smoothly pass through the filter screen for filtration, and maintaining the efficient operation of the device. Attached Figure Description

[0015] Figure 1 This is a frontal perspective view of a dry-wet integrated desulfurization and denitrification device proposed in this utility model;

[0016] Figure 2 This is a side perspective structural diagram of an integrated dry and wet desulfurization and denitrification device proposed in this utility model;

[0017] Figure 3 This is a partial three-dimensional structural diagram of the tower body in the dry and wet integrated desulfurization and denitrification device proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the mounting frame in the dry and wet integrated desulfurization and denitrification device proposed in this utility model;

[0019] Figure 5 This is a partial three-dimensional cross-sectional structural diagram of the gas collection box, gas supply component, and transmission component in the dry and wet integrated desulfurization and denitrification device proposed in this utility model.

[0020] Figure 6 This is a partial three-dimensional structural diagram of the rotating shell in the dry and wet integrated desulfurization and denitrification device proposed in this utility model.

[0021] In the diagram: 1. Tower body, 2. Mounting frame, 3. Filter screen, 4. First liquid inlet pipe, 5. Nozzle, 6. Rotating shell, 7. Second liquid inlet pipe, 8. Gas collection box, 9. Gas outlet, 10. Hollow rod, 11. Insert rod, 12. Mounting plate, 13. Impact rod, 14. Opening, 15. Air hole, 16. Mounting rod, 17. Piston rod, 18. Gas outlet pipe, 19. Gas inlet pipe, 20. Slide rod, 21. Telescopic spring, 22. Reciprocating screw, 23. Slide plate, 24. Sprocket, 25. Chain, 26. Rotating impeller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-6A dry and wet integrated desulfurization and denitrification device includes a tower body 1, an installation frame 2 fixedly installed inside the tower body 1, a plurality of filter screens 3 fixedly installed at equal intervals inside the installation frame 2, a first liquid inlet pipe 4 fixedly installed on the side wall of the tower body 1, one end of the first liquid inlet pipe 4 penetrating into the tower body 1, and a plurality of nozzles 5 fixedly installed at equal intervals on its surface, the end of the first liquid inlet pipe 4 located outside the tower body 1 is sealed and rotatably connected to an annular rotating shell 6, the surface of the rotating shell 6 away from the first liquid inlet pipe 4 is sealed and rotatably connected to a second liquid inlet pipe 7, the second liquid inlet pipe 7 being fixedly connected to the outlet end of a pump (the pump is not shown in the figure, it is disclosed in publication number CN212215100U, patent name is a dry and wet integrated desulfurization and denitrification device, which belongs to the prior art, and its working principle will not be described in detail here).

[0024] A gas collecting box 8 is fixedly installed on the surface of the tower body 1. An outlet 9 is provided on the lower surface of the gas collecting box 8, and a pressure valve is installed inside the outlet 9. An L-shaped hollow rod 10 is fixedly installed on the lower surface of the gas collecting box 8. Multiple air holes 15 are provided on the surface of the hollow rod 10. The top of the hollow rod 10 covers the outlet 9. A slidingly sealed insert rod 11 is inserted into the other end of the hollow rod 10. An installation plate 12 is fixedly installed on the external end of the insert rod 11. Multiple impact rods 13 are fixedly installed on the surface of the installation plate 12. Multiple openings 14 are provided on the side wall of the tower body 1, and the multiple openings 14 are respectively connected to… Multiple filter screens 3 are positioned correspondingly, and multiple impact rods 13 are positioned corresponding to multiple openings 14 respectively. The mounting plate 12 is connected to the tower body 1 through a telescopic component. The telescopic component includes two slide rods 20 symmetrically fixedly installed on the side wall of the tower body 1 and two telescopic springs 21 respectively sleeved on the two slide rods 20. The mounting plate 12 is slidably sleeved on the two slide rods 20. One end of the slide rod 20 is fixedly installed with a mounting block. The two ends of the telescopic springs 21 are fixedly connected to the mounting block and the mounting plate 12 respectively. The surface of the gas collection box 8 is provided with a gas supply component, which is used to supply gas into the gas collection box 8.

[0025] When flue gas enters the tower body 1, the purified liquid can be introduced at high speed into the second inlet pipe 7, the rotating shell 6, and the first inlet pipe 4, and sprayed out from multiple nozzles 5. During this process, the gas supply component will supply gas into the gas collection box 8. As more and more gas accumulates in the gas collection box 8, the pressure will gradually increase. When the pressure valve in the outlet 9 reaches the critical value, the pressure valve will open, and the gas in the gas collection box 8 will rush into the hollow rod 10 from the outlet 9, pushing the insertion rod 11, along with the mounting plate 12 and multiple impact rods 13, towards the direction closer to the tower body 1. When the movement occurs, the two telescopic springs 21 will stretch, and the multiple impact rods 13 will collide with the side wall of the mounting frame 2. Then, under the elastic potential energy of the two telescopic springs 21, the insertion rod 11 will move and reset quickly with the mounting plate 12 and the multiple impact rods 13, so that the multiple impact rods 13 no longer contact the mounting frame 2. The gas inside the hollow rod 10 will be squeezed out from the multiple air holes 15. Then, with the air supply component, when the pressure in the air collection box 8 reaches the critical value of the pressure valve in the air outlet 9, the insertion rod 11 will collide with the mounting frame 2 again with the multiple impact rods 13.

[0026] As flue gas continuously passes through filter screen 3, dust and other impurities gradually accumulate on it, causing the pores of filter screen 3 to become smaller or even blocked, affecting the normal flow and filtration effect of flue gas. The impact rod 13 intermittently collides with the mounting frame 2, and the resulting vibration is transmitted to filter screen 3. This vibration can cause the dust and other impurities accumulated on filter screen 3 to fall off, keeping the pores of filter screen 3 unobstructed, so that flue gas can continuously and smoothly pass through filter screen 3 for filtration, maintaining the efficient operation of the device.

[0027] The air supply assembly includes a mounting rod 16 and a piston rod 17. One end of the mounting rod 16 has an air groove, and the other end is fixedly fitted with an air outlet pipe 18. The piston rod 17 is slidably and sealed within the air groove. The air outlet pipe 18 is fixedly connected to the air collection box 8. An air inlet pipe 19 is fixedly mounted on the surface of the mounting rod 16. Both the air outlet pipe 18 and the air inlet pipe 19 are equipped with one-way valves. The one-way valve in the air outlet pipe 18 flows from the air groove to the air collection box 8. The one-way valve in the air inlet pipe 19... The direction of conduction is from the outside to the gas groove. The piston rod 17 is controlled to move laterally through the transmission assembly. The transmission assembly includes a reciprocating screw 22 that is horizontally rotatably installed on the side wall of the tower body 1 and a sliding plate 23 that is threaded onto the reciprocating screw 22. The surface of the sliding plate 23 is fixedly connected to one end of the piston rod 17. Both the reciprocating screw 22 and the rotating shell 6 are fixedly fitted with sprockets 24. Chains 25 are meshed and wound on the two sprockets 24. A rotating impeller 26 is fixedly installed on the inner wall of the rotating shell 6.

[0028] When the purified liquid passes through the rotating shell 6 at high speed, the rotating impeller 26 is driven by the purified liquid to rotate the rotating shell 6. Under the transmission action of the two sprockets 24 and the chain 25, the reciprocating screw 22 also rotates. The slide plate 23 threaded onto the reciprocating screw 22 will drive the piston rod 17 to move laterally back and forth. During the movement, the volume of the space between the end of the piston rod 17 and the wall of the gas groove will continuously change from small to large and then from large to small. When the volume of the space increases, the pressure decreases, and the gas located outside will enter the gas groove from the air inlet pipe 19. When the volume of the space decreases, the pressure increases, and the gas located in the gas groove will enter the gas collection box 8 from the air outlet pipe 18. This process repeats, thereby achieving the effect of supplying gas to the gas collection box 8.

[0029] In this invention, when the purified liquid is sprayed from multiple nozzles 5, the air supply component intermittently collects air into the air collection box 8, causing the insertion rod 11 to intermittently move the mounting plate 12 and multiple impact rods 13. When the multiple impact rods 13 move, they will collide with the mounting frame 2, and the resulting vibration will be transmitted to the filter screen 3. This vibration can cause the dust and other impurities accumulated on the filter screen 3 to fall off, keep the pores of the filter screen 3 unobstructed, and allow the flue gas to continuously and smoothly pass through the filter screen 3 for filtration, maintaining the efficient operation of the device.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dry-wet integrated desulfurization and denitrification device, comprising a tower body (1), characterized in that, The tower body (1) is fixedly installed with an installation frame (2), a plurality of filter screens (3) are fixedly installed in the installation frame (2) at equal intervals, a first liquid inlet pipe (4) is fixedly installed on the side wall of the tower body (1), one end of the first liquid inlet pipe (4) penetrates into the tower body (1), a plurality of nozzles (5) are fixedly installed on the surface of the first liquid inlet pipe (4) at equal intervals, a rotating shell (6) is sealingly and rotatably connected to the end of the first liquid inlet pipe (4) located outside the tower body (1), and a second liquid inlet pipe (7) is sealingly and rotatably connected to the surface of the rotating shell (6) away from the first liquid inlet pipe (4); a gas collecting box (8) is fixedly installed on the surface of the tower body (1), an air outlet (9) is formed in the lower surface of the gas collecting box (8), a pressure valve is arranged in the air outlet (9), an L-shaped hollow rod (10) is fixedly installed on the lower surface of the gas collecting box (8), a plurality of air holes (15) are formed in the surface of the hollow rod (10), the top end of the hollow rod (10) covers the air outlet (9), an insertion rod (11) is slidingly and sealingly arranged in the other end of the hollow rod (10), an installation plate (12) is fixedly installed on the end of the insertion rod (11) located outside, a plurality of impact rods (13) are fixedly installed on the surface of the installation plate (12), a plurality of openings (14) are formed in the side wall of the tower body (1), the installation plate (12) is connected to the tower body (1) through an extension component, and a gas supply assembly is arranged on the surface of the gas collecting box (8) and used for supplying gas into the gas collecting box (8).

2. The device according to claim 1, wherein The gas supply assembly comprises an installation rod (16) and a piston rod (17), a gas groove is formed in one end of the installation rod (16), an air outlet pipe (18) is fixedly installed on the other end of the installation rod (16), the piston rod (17) is slidingly and sealingly arranged in the gas groove, the air outlet pipe (18) is fixedly connected to the gas collecting box (8), an air inlet pipe (19) is fixedly installed on the surface of the installation rod (16), and a one-way valve is arranged in each of the air outlet pipe (18) and the air inlet pipe (19); the piston rod (17) is controlled to move transversely through a transmission assembly.

3. The device according to claim 1, wherein The extension component comprises two symmetrical sliding rods (20) fixedly installed on the side wall of the tower body (1) and two extension springs (21) respectively sleeved on the two sliding rods (20), the installation plate (12) is slidingly sleeved on the two sliding rods (20), one end of each sliding rod (20) is fixedly installed with an installation block, and the two ends of each extension spring (21) are fixedly connected with the installation block and the installation plate (12) respectively.

4. The device according to claim 2, wherein The transmission assembly comprises a reciprocating screw rod (22) horizontally and rotatably installed on the side wall of the tower body (1) and a sliding plate (23) threadedly sleeved on the reciprocating screw rod (22), the surface of the sliding plate (23) is fixedly connected with one end of the piston rod (17), a sprocket (24) is fixedly sleeved on each of the reciprocating screw rod (22) and the rotating shell (6), a chain (25) is arranged on the two sprockets (24) in meshing and winding mode, and a rotating impeller (26) is fixedly installed on the inner wall of the rotating shell (6).

5. The device according to claim 2, wherein The one-way valve in the air outlet pipe (18) is in a direction from the air groove to the air collecting box (8), and the one-way valve in the air inlet pipe (19) is in a direction from the outside to the air groove.

6. The device according to claim 1, wherein The plurality of openings (14) respectively correspond to positions of the plurality of filter screens (3), and the plurality of impact rods (13) respectively correspond to positions of the plurality of openings (14).

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