Flue gas environmental protection denitration and desulfurization device

Abstract

The utility model discloses a flue gas environmental protection denitration desulfurization device relates to flue gas treatment technical field, including spraying tower, the inside of spraying tower is provided with spray chamber, the inside installation of spray chamber has a plurality of nozzles, one side of spraying tower is installed with mixing box, and the fixed connection with air inlet pipe has between mixing box and spray chamber. The utility model has the beneficial effect that: the flue gas environmental protection denitration desulfurization device is connected with the flue gas pipe and ozone pipe through mixing box respectively, and is made to ozone be mixed into flue gas evenly with the cooperation of rotary -type air -jet, and ozone as a kind of strong oxidant is advantageous to the NO that is not dissolved in water in flue gas is rapidly oxidized into the high -valence nitrogen oxide that is easily dissolved in water, improves the neutralization reaction effect of nitre and sulfur in flue gas, and under the action of ultrasonic generator, the high -intensity sound field of specific frequency is generated, and the fine particulate matter in flue gas is violently vibrated, collides with each other, rapidly agglomerates into larger particles under the action of sound wave, and is more easily captured.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, specifically to a flue gas environmental protection denitrification and desulfurization device. Background Technology

[0002] Flue gas contains pollutants such as sulfur dioxide, nitrogen oxides, and dust. When these substances are emitted into the air, they cause air pollution (such as acid rain and smog), which harms human health and the ecological environment. Desulfurization and denitrification can effectively remove these pollutants and reduce damage to the environment.

[0003] Application No. 202421375315.X discloses a flue gas denitrification and desulfurization device. The flue gas to be treated is transported to the inside of the treatment tank through the inlet pipe. Then, the delivery pump is started to transport the alkaline solution in the storage tank to the delivery pipe, and the alkaline solution is sprayed into the inside of the treatment tank by the atomizing nozzle, thereby performing denitrification and desulfurization treatment on the flue gas. After the treatment is completed, the flue gas enters the inside of the drying chamber through the straight pipe, and the alkaline solution carried in the flue gas is removed by the desiccant inside the chamber. Finally, the dried flue gas is discharged into the air through the exhaust pipe.

[0004] The aforementioned application uses a spraying method to react an alkaline solution with flue gas. However, the flue gas contains a large amount of NO that is insoluble in water, which affects the reaction effect and makes it difficult to capture fine flue gas particles. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a flue gas environmental protection denitrification and desulfurization device, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flue gas environmental protection denitrification and desulfurization device, comprising a spray tower, an internal spray chamber, multiple spray nozzles installed inside the spray chamber, a mixing box installed on one side of the spray tower, an air inlet pipe fixedly connected between the mixing box and the spray chamber, a flue gas pipe fixedly connected to the top of the mixing box, a rotatable air guide pipe rotatably connected inside the mixing box, air jets fixedly connected to both sides of one end of the air guide pipe, a slot formed on the inner wall of the mixing box outside the air guide pipe, and a... The system includes a rotary joint, one end of which is fixedly connected to the other end of a gas duct. An ozone tube is fixedly connected to the other end of the rotary joint, and one end of the ozone tube is connected to an ozone preparation device. A rotating shaft is rotatably connected inside the empty tank and on one side of the gas duct. A first gear and a second gear are respectively installed on the outside of the gas duct and the rotating shaft, and the first gear and the second gear mesh with each other. An ultrasonic generator is installed on one side of the spray tower and on the top of the mixing tank. An ultrasonic head is fixedly connected to one side of the ultrasonic generator and inside the spray chamber, and a transducer is installed inside the ultrasonic head.

[0007] Preferably, a liquid storage tank is installed on the side of the spray tower away from the mixing tank, a return pipe is fixedly connected between the spray chamber and the liquid storage tank, a water pump is installed on one side of the liquid storage tank, the input end of the water pump extends into the liquid storage tank, a drain pipe is fixedly connected to the output end of the water pump, a guide pipe is installed at one end of the drain pipe, and the guide pipe is fixedly connected to multiple spray nozzles.

[0008] Preferably, a motor is installed on the outer wall of the mixing tank, and the output end of the motor is fixedly connected to the rotating shaft through a coupling.

[0009] Preferably, an air outlet pipe is fixedly connected to the top of the spray chamber.

[0010] Preferably, the mixing box and the spray chamber are respectively equipped with a plurality of staggered first guide plates and second guide plates.

[0011] Preferably, an inlet pipe and a drain pipe are fixedly connected to one side of the liquid storage tank adjacent to the water pump, and a valve is installed on one side of the drain pipe.

[0012] Preferably, a filter screen is installed inside the liquid storage tank.

[0013] This utility model provides a flue gas environmental protection denitrification and desulfurization device, which has the following beneficial effects: 1. This flue gas environmental protection denitrification and desulfurization device connects the mixing box to the flue gas pipe and the ozone pipe respectively, and with the help of the rotary jet head, ozone is evenly mixed into the flue gas. As a strong oxidant, ozone is conducive to rapidly oxidizing NO in the flue gas that is insoluble in water into high-valence nitrogen oxides that are easily soluble in water, thereby improving the neutralization effect of nitrate and sulfur in the flue gas. Under the action of the ultrasonic generator, a high-intensity sound field of a specific frequency is generated. Under the action of the sound waves, the fine particulate matter in the flue gas vibrates violently, collides with each other, and quickly agglomerates into larger particles, which are more easily captured.

[0014] 2. This flue gas environmental protection denitrification and desulfurization device, through multiple first guide plates and second guide plates installed in the mixing box and spray chamber respectively, helps to extend the residence time of flue gas in the mixing box and spray chamber respectively, so that the flue gas can fully contact the ozone in the mixing box and the alkaline solution in the spray chamber, thereby further improving the flue gas treatment efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a front view of the present utility model; Figure 4 This is a side view of the present invention.

[0016] In the diagram: 1. Spray tower; 2. Spray chamber; 3. Spray head; 4. Mixing box; 5. Flue gas pipe; 6. Empty tank; 7. Air guide pipe; 8. Jet head; 9. Rotary joint; 10. Ozone pipe; 11. Shaft; 12. First gear; 13. Second gear; 14. Ultrasonic generator; 15. Ultrasonic head; 16. Storage tank; 17. Guide pipe; 18. Water pump; 19. Drain pipe; 20. Return pipe; 21. First guide plate; 22. Second guide plate; 23. Air inlet pipe; 24. Filter screen; 25. Air outlet pipe; 26. Motor; 27. Water inlet pipe; 28. Drain pipe. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1 to 4This utility model provides a technical solution: a flue gas environmental protection denitrification and desulfurization device, including a spray tower 1, a spray chamber 2 inside the spray tower 1, multiple spray nozzles 3 installed inside the spray chamber 2, a mixing box 4 installed on one side of the spray tower 1, an air inlet pipe 23 fixedly connected between the mixing box 4 and the spray chamber 2, a flue gas pipe 5 fixedly connected to the top of the mixing box 4 to facilitate the sequential feeding of flue gas into the mixing box 4 and the spray chamber 2 for denitrification and desulfurization treatment, a liquid storage tank 16 installed on the side of the spray tower 1 away from the mixing box 4, a return pipe 20 fixedly connected between the spray chamber 2 and the liquid storage tank 16, a water pump 18 installed on one side of the liquid storage tank 16, the input end of the water pump 18 extending into the liquid storage tank 16, and the output end of the water pump 18 fixedly connected to a drain pipe 1. 9. A guide pipe 17 is installed at one end of the drain pipe 19. The guide pipe 17 is fixedly connected to multiple nozzles 3. Under the action of the water pump 18, the alkaline solution in the storage tank 16 is guided to multiple nozzles 3 through the drain pipe 19 and the guide pipe 17, and then circulated and sprayed into the spray chamber 2 to facilitate the neutralization of nitrates and sulfur in the flue gas. A filter screen 24 is installed inside the storage tank 16 to filter out impurities in the solution, which helps to prevent the water pump 18 from clogging. An air outlet pipe 25 is fixedly connected to the top of the spray chamber 2. An air guide pipe 7 is rotatably connected inside the mixing box 4. Air nozzles 8 are fixedly connected to both sides of one end of the air guide pipe 7. A slot 6 is opened on the inner wall of the mixing box 4 and outside the air guide pipe 7. A rotary joint 9 is installed on one side of the mixing box 4. One end of the rotary joint 9 is fixedly connected to the other end of the air duct 7. The other end of the rotary joint 9 is fixedly connected to the ozone tube 10. One end of the ozone tube 10 is connected to the ozone preparation equipment, which mixes ozone into the flue gas in the mixing box 4. As a strong oxidant, ozone is beneficial for rapidly oxidizing NO in the flue gas that is insoluble in water into high-valence nitrogen oxides that are easily soluble in water, thereby improving the neutralization effect of nitrate and sulfur in the flue gas. Inside the empty trough 6 and on one side of the air duct 7, a rotating shaft 11 is rotatably connected. The first gear 12 and the second gear 13 are respectively installed on the outside of the air duct 7 and the rotating shaft 11. The first gear 12 and the second gear 13 mesh with each other, so that the rotating shaft 11 and the air duct 7 can drive the two jet heads 8 to rotate, making the ozone and flue gas mix more evenly. A motor 26 is installed on the outer wall of the mixing chamber 4. The output end of the motor 26 is fixedly connected to the rotating shaft 11 via a coupling, providing power for the rotation of the rotating shaft 11 and the air guide pipe 7. Multiple staggered first guide plates 21 and second guide plates 22 are installed inside the mixing chamber 4 and the spray chamber 2, respectively, which helps to prolong the residence time of the flue gas in the mixing chamber 4 and the spray chamber 2, allowing the flue gas to fully contact the ozone and alkaline solution, thereby further improving the flue gas treatment efficiency. An ultrasonic generator 14 is installed on one side of the spray tower 1 and at the top of the mixing chamber 4. An ultrasonic head 15 is fixedly connected to one side of the ultrasonic generator 14 and inside the spray chamber 2. The ultrasonic head 15 is equipped with a transducer to generate a high-intensity sound field of a specific frequency.Fine particulate matter in the flue gas vibrates violently under the influence of sound waves, collides with each other, and rapidly agglomerates into larger particles, making them easier to capture. An inlet pipe 27 and a drain pipe 28 are fixedly connected to one side of the liquid storage tank 16 adjacent to the water pump 18. A valve is installed on one side of the drain pipe 28 to facilitate the replenishment and discharge of the solution.

[0019] In summary, during operation, this flue gas environmental protection denitrification and desulfurization device allows flue gas to enter the mixing chamber 4 through the flue gas pipe 5. Simultaneously, ozone is guided through the rotary joint 9 and the air guide pipe 7 to the two jet nozzles 8, allowing it to enter the mixing chamber 4. The motor 26 drives the rotating shaft 11 to rotate. Under the meshing action of the first gear 12 and the second gear 13 on the outer side of the air guide pipe 7 and the rotating shaft 11, the air guide pipe 7 and the two jet nozzles 8 rotate, causing the ozone flow to rotate and mix into the flue gas. This rapidly oxidizes the water-insoluble NO in the flue gas into water-soluble high-valence nitrogen oxides. After desulfurization, the flue gas passes through multiple first guide plates 21 in the mixing box 4 and enters the spray chamber 2 in the spray tower 1. The ultrasonic generator 14 operates and generates a high-intensity sound field of a specific frequency through the ultrasonic head 15. Under the action of the sound waves, the fine particles in the flue gas vibrate violently, collide with each other, and quickly agglomerate into larger particles. At the same time, the water pump 18 guides the alkaline solution in the storage tank 16 through the drain pipe 19 to the guide pipe 17, and then sprays it into the spray chamber 2 through multiple nozzles 3 to spray the flue gas, produce a chemical reaction, and carry out denitrification and desulfurization treatment.

[0020] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of the shaft-shaped parts are connected by bearings, and the equipment can be driven by either an internal battery or an external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0021] 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 flue gas environmental protection denitrification and desulfurization device, comprising a spray tower (1), characterized in that: The spray tower (1) has a spray chamber (2) inside, and multiple nozzles (3) are installed inside the spray chamber (2). A mixing box (4) is installed on one side of the spray tower (1). An air inlet pipe (23) is fixedly connected between the mixing box (4) and the spray chamber (2). A flue gas pipe (5) is fixedly connected to the top of the mixing box (4). A guide pipe (7) is rotatably connected inside the mixing box (4). Air jets (8) are fixedly connected to both sides of one end of the guide pipe (7). A slot (6) is opened on the inner wall of the mixing box (4) and outside the guide pipe (7). A rotary joint (9) is installed on one side of the mixing box (4). One end of the rotary joint (9) is fixedly connected to the other end of the guide pipe (7). The other end of the rotary joint (9) is fixedly connected to an ozone tube (10), and one end of the ozone tube (10) is connected to an ozone preparation device. Inside the empty tank (6) and on one side of the gas guide pipe (7), a rotating shaft (11) is rotatably connected. A first gear (12) and a second gear (13) are respectively installed on the outside of the gas guide pipe (7) and the rotating shaft (11). The first gear (12) and the second gear (13) mesh with each other. An ultrasonic generator (14) is installed on one side of the spray tower (1) and on the top of the mixing box (4). An ultrasonic head (15) is fixedly connected on one side of the ultrasonic generator (14) and inside the spray chamber (2). A transducer is provided inside the ultrasonic head (15).

2. The flue gas environmental protection denitrification and desulfurization device according to claim 1, characterized in that: A liquid storage tank (16) is installed on the side of the spray tower (1) away from the mixing tank (4). A return pipe (20) is fixedly connected between the spray chamber (2) and the liquid storage tank (16). A water pump (18) is installed on one side of the liquid storage tank (16). The input end of the water pump (18) extends into the liquid storage tank (16). A drain pipe (19) is fixedly connected to the output end of the water pump (18). A guide pipe (17) is installed at one end of the drain pipe (19). The guide pipe (17) is fixedly connected to multiple nozzles (3).

3. The flue gas environmental protection denitrification and desulfurization device according to claim 1, characterized in that: The outer wall of the mixing box (4) is equipped with a motor (26), and the output end of the motor (26) is fixedly connected to the rotating shaft (11) through a coupling.

4. The flue gas environmental protection denitrification and desulfurization device according to claim 1, characterized in that: An air outlet pipe (25) is fixedly connected to the top of the spray chamber (2).

5. The flue gas environmental protection denitrification and desulfurization device according to claim 1, characterized in that: The mixing box (4) and the spray chamber (2) are respectively equipped with multiple staggered first guide plates (21) and second guide plates (22).

6. The flue gas environmental protection denitrification and desulfurization device according to claim 2, characterized in that: The liquid storage tank (16) is fixedly connected to an inlet pipe (27) and a drain pipe (28) on one side of the adjacent water pump (18), and a valve is installed on one side of the drain pipe (28).

7. The flue gas environmental protection denitrification and desulfurization device according to claim 2, characterized in that: The liquid storage tank (16) is equipped with a filter screen (24).

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