Filtering and discharging device for environment-friendly desulfurization chimney of power plant

Abstract

The invention discloses a power plant environment-friendly desulfurization chimney filtering and discharging device which comprises a shell, a spraying bin is arranged in the shell, a spraying mechanism is arranged in the spraying bin, and the spraying mechanism comprises a sealing bin, a filtering water tank, a water pump and a dust filtering plate; an empty box is arranged at the lower end of the sealing bin, reaction filler is fixedly arranged in the sealing bin, a hollow rotating shaft is rotationally arranged at the upper end of the empty box, a plurality of longitudinal spraying rods are fixedly arranged on the surface of the hollow rotating shaft, and a transverse spraying rod is fixedly arranged at the top end of the hollow rotating shaft; the filtering water tank is arranged at the lower end of the sealing bin, and a filtering plate is arranged on the edge of the filtering water tank; the water pump is arranged in the filtering water tank and is connected with the empty box through a pipeline; and the dust filtering plate is fixedly arranged on the hollow rotating shaft. The device can avoid the problem that the filter screen is blocked.

Description

Technical Field

[0001] This invention belongs to the field of power plant environmental protection technology and relates to a power plant environmental protection desulfurization chimney filtration and emission device. Background Technology

[0002] Flue gas desulfurization (FGD) refers to the removal of sulfur oxides from flue gas or other industrial waste gases. The most widely used commercial technology globally is the calcium method, accounting for over 90% of all FGD processes. Based on the dry and wet states of the absorbent and desulfurization products during the desulfurization process, desulfurization technologies can be classified into wet, dry, and semi-dry methods. Wet FGD technology uses a solution or slurry containing an absorbent to desulfurize and treat the desulfurization products in a wet state. This method has advantages such as fast desulfurization reaction speed, simple equipment, and high desulfurization efficiency.

[0003] Publication No. CN119386646A discloses a power plant environmental protection desulfurization chimney filtration and emission device, including a base and a flow guiding filter assembly. The flow guiding filter assembly is installed on the base. The flow guiding filter assembly includes a desulfurization platform, a desulfurization chamber component, an inner liner, a heat insulation cylinder, a lifting plate, and filter cloths, all located at one end of the base. The desulfurization platform has a cavity, and an air inlet pipe is provided at one end of the desulfurization platform. The air inlet pipe extends into the desulfurization platform and communicates with the cavity of the desulfurization platform. The top of the desulfurization platform is covered with a desulfurization chamber component. The vertical cross-sectional shape of the desulfurization chamber component is set as a cone. An inner liner is provided inside the desulfurization chamber component. A heat insulation cylinder is fitted on the outer side of the inner liner. The heat insulation cylinder is located between the inner liner and the desulfurization chamber component. Multiple ribs are arranged at intervals on the outer circumference of the heat insulation cylinder. A lifting plate is provided in the middle of the inner liner. Several filter cloths are provided on the top of the lifting plate, and the filter cloths are stacked. Through the coordinated use of various structures, the flue gas is filtered by the filter element and then transported to the desulfurization chamber for desulfurization treatment. The filter element prevents dust and impurities in the flue gas from clogging the device. The desulfurizing agent comes into contact with and wets the filter cloth, allowing the flue gas to fully contact the desulfurizing agent and undergo a desulfurization reaction as it passes through the filter cloth. The layered arrangement of the filter cloths extends the contact time and area between the flue gas and the filter, while the guide ribs prevent the flue gas from gathering together, achieving efficient desulfurization treatment while guiding the flow. The flue gas is then heated by the heating block, and the raised ribs can concentrate the heat source and reduce the rate of heat loss. This makes it easier for SO2 in the flue gas to be absorbed and oxidized after heating, while the water content in the flue gas is reduced, greatly avoiding condensation in the equipment and thus ensuring the desulfurization effect.

[0004] However, coal-fired power plants generate a large amount of flue gas during operation. Although the basic purpose of flue gas purification can be achieved, water often needs to be filtered and recycled through a circulating pump during the flue gas spraying purification process. After long-term operation, the filter screen will gradually become clogged. Therefore, a power plant environmental protection desulfurization chimney filtration and emission device is needed to improve the above problems. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a power plant environmental protection desulfurization chimney filtration and emission device that can avoid the problem of filter clogging.

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

[0007] In one aspect, the present invention provides a power plant environmental protection desulfurization chimney filtration and emission device, including an outer shell, a spray chamber inside the outer shell, a spraying mechanism inside the spray chamber, and the spraying mechanism including a sealed chamber, a filter water tank, a water pump and a dust filter plate;

[0008] The lower end of the sealed chamber is equipped with an empty box, and the sealed chamber is equipped with reaction packing material. The upper end of the empty box is equipped with a hollow rotating shaft, and the surface of the hollow rotating shaft is equipped with several longitudinal spray rods. The top of the hollow rotating shaft is equipped with a transverse spray rod. The filter water tank is located at the lower end of the sealed chamber, and the edge of the filter water tank is equipped with a filter plate. The water pump is located inside the filter water tank and is connected to the empty box through a pipe. The dust filter plate is fixedly installed on the hollow rotating shaft.

[0009] The further improvement of the power plant environmental protection desulfurization chimney filtration and emission device described in this invention lies in:

[0010] Furthermore, a combustion chamber is provided at the upper end of the spray chamber.

[0011] Furthermore, the spray chamber and the combustion chamber are connected by through holes.

[0012] Furthermore, several electric heating tubes are fixedly installed inside the combustion chamber.

[0013] Furthermore, the spraying mechanism also includes a motor, the output end of which is connected to a hollow rotating shaft.

[0014] Furthermore, it also includes a first gear, and the output end of the motor is provided with a second gear, which meshes with the first gear, and the first gear is fixedly mounted on the surface of the hollow rotating shaft.

[0015] Furthermore, an exhaust pipe is fixedly provided at the upper end of the outer casing.

[0016] Furthermore, an air inlet is provided on the side of the outer casing.

[0017] Furthermore, the outer casing surface is provided with a switch door.

[0018] Furthermore, the opening and closing of the doors correspond to the settings of the spray chambers.

[0019] This invention provides a power plant environmental protection desulfurization chimney filtration and emission device, including an outer shell, a spray chamber inside the outer shell, a spray mechanism inside the spray chamber, and a sealed chamber, a filter water tank, a water pump, and a dust filter plate.

[0020] The lower end of the sealed chamber is equipped with an empty box, and reaction packing is fixedly installed inside the sealed chamber. A hollow rotating shaft is rotatably installed at the upper end of the empty box. Several longitudinal spray rods are fixedly installed on the surface of the hollow rotating shaft, and a transverse spray rod is fixedly installed at the top of the hollow rotating shaft. The filter water tank is located at the lower end of the sealed chamber, and filter plates are installed at the edge of the filter water tank. The water pump is located inside the filter water tank and is connected to the empty box through a pipe. The dust filter plate is fixedly installed on the hollow rotating shaft.

[0021] The upper end of the spray chamber is equipped with a combustion chamber;

[0022] The spraying mechanism also includes a motor, the output end of which is connected to a hollow rotating shaft;

[0023] It also includes a first gear, and the output end of the motor is provided with a second gear, which meshes with the first gear. The first gear is fixedly mounted on the surface of the hollow rotating shaft.

[0024] The present invention has the following beneficial effects:

[0025] In specific operation, the power plant environmental protection desulfurization chimney filtration and emission device of the present invention uses the reaction liquid after dust removal to fall onto the surface of the dust filter plate for initial filtration, and then falls into the filter water tank for storage. At the same time, it rotates and centrifuges with the hollow rotating shaft, and the liquid washes the dust filter plate to avoid clogging. It falls on the outside of the filter water tank, which is convenient for later opening and cleaning. The structure is simple and extremely practical.

[0026] Furthermore, the flue gas enters the spray chamber, the water pump pumps the reaction liquid into the empty box, and then sprays it out through the longitudinal spray bar and the transverse spray bar. The motor drives gear two to rotate, and then gear one rotates to drive the hollow shaft to rotate, which in turn drives the longitudinal spray bar and the transverse spray bar to rotate and spray. After the dust is removed by spraying, the flue gas enters the reaction packing to react, and then passes through the combustion chamber to burn and treat the waste gas. The structure is simple, the reliability is high, and the practicality is extremely strong. Attached Figure Description

[0027] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall internal structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the longitudinal spray bar structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the internal structure of the sealing chamber of the present invention;

[0031] Figure 4 This is a schematic diagram of the overall external structure of the present invention.

[0032] Among them, 1 is the exhaust pipe, 2 is the outer shell, 3 is the combustion chamber, 4 is the electric heating tube, 5 is the through hole, 6 is the reaction packing, 7 is the spray mechanism, 8 is the spray chamber, 9 is the dust filter plate, 10 is the filter water tank, 11 is the sealing chamber, 12 is the air inlet, 13 is the longitudinal spray bar, 14 is the hollow rotating shaft, 15 is the transverse spray bar, 16 is gear one, 17 is the empty box, 18 is the water pump, 19 is the motor, and 20 is gear two. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0035] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0036] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this invention generally indicates that the preceding and following objects have an "or" relationship.

[0037] It should be understood that although terms such as first, second, third, etc., may be used in the embodiments of the present invention to describe the preset range, these preset ranges should not be limited to these terms. These terms are only used to distinguish the preset ranges from one another. For example, without departing from the scope of the embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0038] Depending on the context, the word "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] The accompanying drawings illustrate various structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0041] As is widely known, desulfurization chimneys are key facilities for discharging desulfurized flue gas, and their design must focus on flue gas characteristics and corrosion prevention requirements. The following section introduces the function of desulfurization chimneys, flue gas characteristics, and corrosion prevention measures:

[0042] I. The function of desulfurization chimneys

[0043] Desulfurization chimneys are primarily used to discharge flue gas that has undergone desulfurization treatment, thereby reducing the emission of pollutants such as sulfur dioxide and lowering environmental pollution. In industrial boilers, kilns, and other facilities, desulfurization chimneys are crucial supporting infrastructure that helps enterprises achieve green transformation and sustainable development.

[0044] II. Characteristics of Desulfurization Flue Gas

[0045] High moisture content: The flue gas has high humidity, which makes it easy for condensation to form on the inner wall of the chimney.

[0046] Low temperature: The temperature of flue gas after desulfurization is generally between 40 and 50°C, and after being heated by the GGH heater, it is generally around 80°C.

[0047] Highly corrosive acid: Although the concentration of acid in the flue gas is low, its permeability is strong, making it highly corrosive to chimney structures. Low-concentration dilute sulfuric acid is particularly corrosive than high-concentration acid. At temperatures between 40 and 80°C, the acid's corrosiveness to structural materials is especially pronounced; for example, the corrosion rate of steel at these temperatures is approximately 3 to 8 times higher than at other temperatures.

[0048] III. Corrosion Prevention Measures for Desulfurization Chims

[0049] Due to the characteristics of desulfurized flue gas mentioned above, the corrosion protection design requirements for desulfurization chimneys are higher than those for chimneys emitting ordinary, non-desulfurized flue gas. The following are some common corrosion prevention measures:

[0050] Corrosion-resistant materials are used: For example, titanium or titanium-molybdenum alloy steel composite inner cylinders are used. Although the initial investment is large, the service life can reach 15 to 20 years or even longer. The savings in maintenance costs and downtime losses during this period are considerable, and it is safe and reliable.

[0051] Corrosion-resistant lining: A corrosion-resistant lining, such as fiberglass brick lining or acid-resistant mortar lining, is installed on the inner wall of the chimney to block and resist the corrosion of the inner wall of the chimney by acid flue gas condensate.

[0052] Optimize chimney design: Adopt a straight-cylinder steel inner cylinder, sleeve-type, or multi-tube design to improve the chimney's corrosion resistance and stability. For chimneys without GGH desulfurization, the steel inner cylinder should preferably be made of titanium steel or titanium-molybdenum alloy steel composite plate.

[0053] Strengthen operation management: During chimney operation, close attention should be paid to the temperature, humidity, and corrosiveness of the flue gas, and operating parameters should be adjusted in a timely manner to avoid excessive corrosion of the chimney. At the same time, the chimney should be inspected and maintained regularly to promptly identify and address corrosion problems.

[0054] Example 1

[0055] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The power plant environmental protection desulfurization chimney filtration and emission device of the present invention includes an outer shell 2, inside which is a spray chamber 8, and inside the spray chamber 8 is a spray mechanism 7. The spray mechanism 7 includes a sealed chamber 11, a filter water tank 10, a water pump 18, and a dust filter plate 9. The lower end of the sealed chamber 11 is provided with an empty box 17, and a reaction packing 6 is fixedly provided inside the sealed chamber 11. The upper end of the empty box 17 is rotatably provided with a hollow rotating shaft 14, and a plurality of longitudinal spray rods 13 are fixedly provided on the surface of the hollow rotating shaft 14. A transverse spray rod 15 is fixedly provided at the top of the hollow rotating shaft 14. The filter water tank 10 is located at the lower end of the sealed chamber 11, and a filter plate is provided at the edge of the filter water tank 10. The water pump 18 is located inside the filter water tank 10 and is connected to the empty box 17 through a pipe. The dust filter plate 9 is fixedly provided on the hollow rotating shaft 14.

[0056] Example 2

[0057] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 To further improve this application, the power plant environmental protection desulfurization chimney filtration and emission device of the present invention includes a shell 2, a spray chamber 8 is provided inside the shell 2, a spray mechanism 7 is provided inside the spray chamber 8, and the spray mechanism 7 includes a sealed chamber 11, a filter water tank 10, a water pump 18 and a dust filter plate 9.

[0058] The lower end of the sealed chamber 11 is provided with an empty box 17, and the sealed chamber 11 is fixedly provided with reaction packing 6. The upper end of the empty box 17 is rotatably provided with a hollow rotating shaft 14. Several longitudinal spray rods 13 are fixedly provided on the surface of the hollow rotating shaft 14, and a transverse spray rod 15 is fixedly provided at the top of the hollow rotating shaft 14. The filter water tank 10 is provided at the lower end of the sealed chamber 11, and the edge of the filter water tank 10 is provided with a filter plate. The water pump 18 is provided inside the filter water tank 10, and the water pump 18 is connected to the empty box 17 through a pipe. The dust filter plate 9 is fixedly provided on the hollow rotating shaft 14. The upper end of the spray chamber 8 is provided with a combustion chamber 3. The spray mechanism 7 also includes a motor 19, the output end of which is connected to the hollow rotating shaft 14. It also includes a gear 16, the output end of which is driven by a gear 20, which meshes with the gear 16. The gear 16 is fixedly provided on the surface of the hollow rotating shaft 14.

[0059] Example 3

[0060] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4To further improve this application, the present invention discloses a power plant environmental protection desulfurization chimney filtration and emission device. The power plant environmental protection desulfurization chimney filtration and emission device includes a shell 2, a spray chamber 8 inside the shell 2, and a spray mechanism 7 inside the spray chamber 8. The spray mechanism 7 includes:

[0061] A sealed chamber 11 is provided at the lower end of the sealed chamber 11 with an empty box 17. The sealed chamber 11 is fixedly provided with reaction packing 6. A hollow rotating shaft 14 is rotatably provided at the upper end of the empty box 17. Several longitudinal spray rods 13 are fixedly provided on the surface of the hollow rotating shaft 14. A transverse spray rod 15 is fixedly provided at the top of the hollow rotating shaft 14.

[0062] A water filter tank 10 is located at the lower end of the sealed chamber 11, and a filter plate is provided on the edge of the water filter tank 10.

[0063] Water pump 18 is installed inside the filter tank 10 and is connected to the empty box 17 through a pipe.

[0064] Dust filter plate 9 is fixedly installed on hollow rotating shaft 14. Flue gas enters spray chamber 8. Water pump 18 pumps reaction liquid into empty box 17, and then sprays it out through longitudinal spray bar 13 and transverse spray bar 15. Motor 19 drives gear 20 to rotate, and then drives hollow rotating shaft 14 to rotate through gear 16, which in turn drives longitudinal spray bar 13 and transverse spray bar 15 to rotate and spray. After dust removal by spraying, flue gas enters reaction packing 6 for reaction, and then passes through combustion chamber 3 for combustion treatment of waste gas.

[0065] After dust removal, the reaction liquid falls onto the surface of the dust filter plate 9 for initial filtration, then falls into the filter water tank 10 for storage. At the same time, it rotates and centrifuges along with the hollow rotating shaft 14. The liquid washes the dust filter plate 9 to prevent clogging, and falls onto the outside of the filter water tank 10 for easy cleaning later.

[0066] In one embodiment of the present invention, the upper end of the spray chamber 8 is provided with a combustion chamber 3, and the spray chamber 8 and the combustion chamber 3 are connected through a through hole 5.

[0067] In one embodiment of the present invention, a plurality of electric heating tubes 4 are fixedly provided inside the combustion chamber 3.

[0068] In one embodiment of the present invention, the spraying mechanism 7 further includes:

[0069] Motor 19, the output end of motor 19 is equipped with gear 20, gear 20 meshes with gear 16, gear 16 is fixedly mounted on the surface of hollow rotating shaft 14.

[0070] In one embodiment of the present invention, an exhaust pipe 1 is fixedly provided on the upper end of the outer shell 2, and an air inlet 12 is provided on the side of the outer shell 2.

[0071] In one embodiment of the present invention, the outer shell 2 is provided with a switch door, which is provided corresponding to the spray chamber 8.

[0072] Example 4

[0073] The present invention describes the working method of the power plant environmental protection desulfurization chimney filtration and emission device. The power plant environmental protection desulfurization chimney filtration and emission device includes an exhaust pipe 1, an outer shell 2, a combustion chamber 3, an electric heating tube 4, a through hole 5, reaction packing 6, a spray mechanism 7, a spray chamber 8, a dust filter plate 9, a filter water tank 10, a sealed chamber 11, an air inlet 12, a longitudinal spray bar 13, a hollow rotating shaft 14, a transverse spray bar 15, a gear 16, an empty box 17, a water pump 18, a motor 19, and a gear 20. The specific connection relationships are shown in Example 3.

[0074] Specifically, the working method of the power plant environmental protection desulfurization chimney filtration and emission device includes the following steps: flue gas enters the spray chamber 8, water pump 18 pumps the reaction liquid into the empty box 17, and then sprays it out through the longitudinal spray bar 13 and the transverse spray bar 15. Motor 19 drives gear 20 to rotate, and then drives the hollow rotating shaft 14 to rotate through gear 16, which drives the longitudinal spray bar 13 and the transverse spray bar 15 to rotate and spray. After dust removal by spraying, the flue gas enters the reaction packing 6 for reaction, and then the exhaust gas is treated by combustion in the combustion chamber 3.

[0075] After dust removal, the reaction liquid falls onto the surface of the dust filter plate 9 for initial filtration, then falls into the filter water tank 10 for storage. At the same time, it rotates and centrifuges along with the hollow rotating shaft 14. The liquid washes the dust filter plate 9 to prevent clogging, and falls onto the outside of the filter water tank 10, making it convenient to open the door for cleaning later. The operation is convenient, simple, and highly practical.

[0076] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and disclosure of the invention. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0077] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

[0078] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A power plant environmental protection desulfurization chimney filtration and emission device, characterized in that, Includes an outer shell (2), inside which is provided a spray chamber (8), inside which is provided a spraying mechanism (7), the spraying mechanism (7) includes a sealed chamber (11), a filter water tank (10), a water pump (18) and a dust filter plate (9); The lower end of the sealed chamber (11) is provided with an empty box (17), and the sealed chamber (11) is provided with reaction packing (6). The upper end of the empty box (17) is rotatably connected to a hollow rotating shaft (14). Several longitudinal spray rods (13) are fixed on the surface of the hollow rotating shaft (14), and a transverse spray rod (15) is fixed at the top of the hollow rotating shaft (14). The filter water tank (10) is set at the lower end of the sealed chamber (11), and a filter plate is provided at the edge of the filter water tank (10). The water pump (18) is set inside the filter water tank (10), and the water pump (18) is connected to the empty box (17). The dust filter plate (9) is fixedly set on the hollow rotating shaft (14).

2. The power plant environmental protection desulfurization chimney filtration and emission device according to claim 1, characterized in that, The upper end of the spray chamber (8) is provided with a combustion chamber (3).

3. The power plant environmental protection desulfurization chimney filtration and emission device according to claim 2, characterized in that, The spray chamber (8) and the combustion chamber (3) are connected through the through hole (5).

4. The power plant environmental protection desulfurization chimney filtration and emission device according to claim 2, characterized in that, The combustion chamber (3) is equipped with several electric heating tubes (4).

5. The power plant environmental protection desulfurization chimney filtration and emission device according to claim 1, characterized in that, The spraying mechanism (7) also includes a motor (19), the output end of which is connected to the hollow rotating shaft (14).

6. The power plant environmental protection desulfurization chimney filtration and emission device according to claim 5, characterized in that, It also includes a first gear (16), and the output end of the motor (19) is connected to a second gear (20). The second gear (20) meshes with the first gear (16), and the first gear (16) is fixed to the surface of the hollow rotating shaft (14).

7. The power plant environmental protection desulfurization chimney filtration and emission device according to claim 1, characterized in that, An exhaust pipe (1) is fixed to the upper end of the outer casing (2).

8. The power plant environmental protection desulfurization chimney filtration and emission device according to claim 7, characterized in that... An air inlet (12) is provided on the side of the outer casing (2).

9. The power plant environmental protection desulfurization chimney filtration and emission device according to claim 1, characterized in that... The outer shell (2) has a switch door on its surface.

10. A power plant environmental protection desulfurization chimney filtration and emission device, characterized in that, Includes an outer shell (2), inside which is provided a spray chamber (8), inside which is provided a spraying mechanism (7), the spraying mechanism (7) includes a sealed chamber (11), a filter water tank (10), a water pump (18) and a dust filter plate (9); The lower end of the sealed chamber (11) is provided with an empty box (17), and the sealed chamber (11) is provided with reaction packing (6). The upper end of the empty box (17) is rotatably connected to a hollow rotating shaft (14). Several longitudinal spray rods (13) are fixed on the surface of the hollow rotating shaft (14), and a transverse spray rod (15) is fixed at the top of the hollow rotating shaft (14). The filter water tank (10) is set at the lower end of the sealed chamber (11), and a filter plate is provided at the edge of the filter water tank (10). The water pump (18) is set inside the filter water tank (10) and is connected to the empty box (17). The dust filter plate (9) is fixedly set on the hollow rotating shaft (14). The upper end of the spray chamber (8) is provided with a combustion chamber (3); The spraying mechanism (7) also includes a motor (19), the output end of which is connected to the hollow rotating shaft (14); It also includes a first gear (16), and the output end of the motor (19) is connected to a second gear (20). The second gear (20) meshes with the first gear (16), and the first gear (16) is fixed on the hollow rotating shaft (14).

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