An energy-saving and environmentally friendly flue gas desulfurization and denitrification device

Abstract

The present invention relates to the technical field of desulfurization and denitrification, and specifically to an energy-saving and environment-friendly flue gas desulfurization and denitrification device, comprising a cylinder, the outer side of the cylinder is connected to a smoke inlet pipe, the top of the cylinder is connected to a smoke outlet pipe, a plurality of groups of vertical filtering structures are arranged inside the cylinder, the tops of the filtering structures are connected to spray structures, a plurality of groups of filtering structures are arranged below sewage discharge structures, a vertically arranged driving structure is arranged inside the cylinder, and the driving structure is used to drive the filtering structure to rotate; when the flue gas enters the cylinder, as the flue gas rises, the flue gas is filtered of impurities through the plurality of filtering structures and the spraying structures, and the contact time between the desulfurization and denitrification agent and the flue gas is increased, thereby improving the desulfurization and denitrification effect of the flue gas.

Description

Technical Field

[0001] The invention relates to the technical field of desulfurization and denitrification, and in particular to an energy-saving and environment-friendly flue gas desulfurization and denitrification device. Background Art

[0002] Coal-fired boilers generate a large amount of flue gas during the combustion process. The flue gas contains sulfides and nitrates. Direct discharge will cause environmental pollution. Therefore, the flue gas is often desulfurized and denitrated when it is discharged. At present, the flue gas is mostly desulfurized and denitrated by spraying desulfurization and denitrification agents. Since the flue gas contains a large amount of dust, it will affect the effect of desulfurization and denitrification. At the same time, the contact time between the desulfurization and denitrification agents and the flue gas is short, which will further lead to poor desulfurization and denitrification effects of the flue gas. Therefore, an energy-saving and environmentally friendly flue gas desulfurization and denitrification device is proposed to facilitate the filtration of the flue gas and increase the contact time between the desulfurization and denitrification agents and the flue gas, so as to improve the desulfurization and denitrification effects of the flue gas. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides an energy-saving and environment-friendly flue gas desulfurization and denitrification device, which is convenient for filtering flue gas and increasing the contact time between the desulfurization and denitrification agent and the flue gas, thereby improving the desulfurization and denitrification effect of the flue gas.

[0004] The technical solution adopted by the present invention to solve the technical problem is an energy-saving and environmentally friendly flue gas desulfurization and denitrification device, comprising a cylinder, the outer side of the cylinder is connected to a smoke inlet pipe, the top of the cylinder is connected to a smoke outlet pipe, a plurality of groups of vertical filtering structures are arranged inside the cylinder, the top of the filtering structures are connected to a spray structure, a plurality of groups of filtering structures are arranged below a sewage discharge structure, a vertically arranged driving structure is arranged inside the cylinder, and the driving structure is used to drive the filtering structure to rotate;

[0005] The driving structure is fixedly connected to a mounting plate at the bottom of the inner side of the cylinder, the mounting plate is horizontally arranged, a driving motor is fixedly connected to the mounting plate, a connecting pipe is fixedly connected to the output end of the driving motor, the top end of the connecting pipe is closed, a plurality of groups of connecting ports are arranged on the connecting pipe, each group of the connecting ports includes a first connecting port, a second connecting port, and a third connecting port, the first connecting port is located below the second connecting port, the second connecting port is located below the third connecting port, a plurality of groups of closing plates are arranged in the connecting pipe, and the closing plates are located between two groups of connecting ports adjacent to each other;

[0006] The sewage discharge structure is rotatably connected to the connecting pipe, the filter structure is initially located above the second connecting port, the filter structure is initially located outside the third connecting port, the filter structure is in sliding contact with the connecting pipe, and the spray structure is rotatably connected to the outside of the connecting pipe.

[0007] Specifically, the spray structure includes a plurality of spray rings, the spray rings are rotatably connected to the connecting pipe, adjacent spray rings are fixedly connected by connecting rods, the lower part of the spray ring is fixedly connected with a magnet, the magnet is magnetically adsorbed to the filter structure, and a plurality of vertically arranged cleaning rods are fixedly connected between adjacent spray rings, and the lower end of the cleaning rod is located in the filter structure;

[0008] A first liquid inlet channel and a second liquid inlet channel are provided on the top of the spray ring, and the first liquid inlet channel and the second liquid inlet channel are respectively communicated with the inside of a plurality of groups of spray rings.

[0009] Specifically, the filtering structure includes an annular sliding frame with an opening upward, the connecting pipe passes through the annular sliding frame and is in sliding contact with the annular sliding frame, the annular sliding frame is located above the second connecting port, filtering material is placed in the annular sliding frame, the upper surface of the annular sliding frame is magnetically adsorbed by a magnet, a plurality of groups of filter holes are arranged through the inner bottom of the annular sliding frame, a plurality of groups of gas springs are fixedly connected to the lower surface of the annular sliding frame, a plurality of groups of balls are arranged at the lower ends of the gas springs, and a scraper is fixedly connected to one side of the lower end of the gas spring.

[0010] Specifically, the sewage discharge structure includes a cleaning frame with an upward opening, the cleaning frame is located outside the connecting pipe and is rotatably connected to the connecting pipe, the cleaning frame is located above the first connecting port, a plurality of rotating plates are fixedly connected to the outside of the connecting pipe, the upper surfaces of the rotating plates are each provided with a polygonal groove, and a card block corresponding to the polygonal groove is fixedly connected to the lower surface of the annular sliding frame;

[0011] The balls are in rolling contact with the inner upper surface of the cleaning frame, the scrapers are in sliding contact with the inner upper surface of the cleaning frame, and an adjustable sewage discharge structure is arranged in the cleaning frame.

[0012] Specifically, the adjustable sewage discharge structure includes a first sewage discharge port and a second sewage discharge port which are arranged through one side of the cleaning frame, and a first sewage discharge pipe and a second sewage discharge pipe are arranged outside the cylinder body, the first sewage discharge port is connected to the first sewage discharge pipe through a pipeline, and the second sewage discharge port is connected to the second sewage discharge pipe through a pipeline;

[0013] The upper surface of the cleaning frame is provided with a vertically arranged annular groove, a sliding cylinder is slidably connected in the annular groove, a plurality of reset springs are fixedly connected to the lower end of the sliding cylinder and the inner side of the annular groove, a first opening and a second opening are provided on the sliding cylinder, the first opening corresponds to the first sewage outlet in an initial state, the second opening is located above the second sewage outlet and staggered with the second sewage outlet in an initial state, and the upper surface of the sliding cylinder is in compression contact with the lower surface of the annular sliding frame.

[0014] Specifically, the lower ends of the first sewage pipe and the second sewage pipe are both connected to sewage valves.

[0015] Beneficial effects of the present invention:

[0016] The energy-saving and environment-friendly flue gas desulfurization and denitrification device described in the present invention, when the flue gas enters the cylinder, as the flue gas rises, the flue gas is filtered of impurities through multiple groups of filtering structures and spraying structures, and the contact time between the desulfurization and denitrification agent and the flue gas is increased, thereby improving the desulfurization and denitrification effect of the flue gas.

[0017] The energy-saving and environment-friendly flue gas desulfurization and denitrification device described in the present invention has the following characteristics: when a group of annular sliding frames has a large amount of impurities adsorbed by the filter material, the corresponding annular sliding frame is separated from the magnet and moves down to a certain position, and the clamping block is engaged with the polygonal groove, and the connecting pipe is driven to rotate by a driving motor. When the connecting pipe rotates, the annular sliding frame is driven to rotate by the clamping block, and at the same time, the filter material is flushed by spraying water with a spray ring, and the filter material is stirred by a cleaning rod to improve the flushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 is an axonometric view of the present invention;

[0020] Figure 2 It is a cross-sectional view of the cylinder of the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the annular sliding frame of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure after the annular sliding frame of the present invention moves downward;

[0023] Figure 5 for Figure 2 A schematic diagram of the enlarged structure of region A;

[0024] Figure 6 for Figure 2 Schematic diagram of the enlarged structure of region B;

[0025] Figure 7 for Figure 3 Schematic diagram of the enlarged structure of the C region;

[0026] Figure 8 for Figure 3 Schematic diagram of the enlarged structure of the D region;

[0027] Fig. 9 It is a structural schematic diagram of the spray ring of the present invention;

[0028] Fig.10It is a schematic diagram of the connecting pipe structure of the present invention;

[0029] Fig.11 It is a schematic diagram of the cross-sectional structure of the connecting pipe of the present invention;

[0030] Fig.12 It is a schematic diagram of the bottom structure of the annular sliding frame of the present invention;

[0031] In the figure: 1, cylinder; 2, smoke inlet pipe; 3, smoke outlet pipe; 4, mounting plate; 5, driving motor; 6, connecting pipe; 7, first connecting port; 8, second connecting port; 9, third connecting port; 10, closing plate; 11, spray ring; 12, magnet; 13, cleaning rod; 14, first liquid inlet channel; 15, second liquid inlet channel; 16, annular sliding frame; 17, filter hole; 18, gas spring; 19, ball bearing; 20, scraper; 21, cleaning frame; 22, rotating plate; 23, polygonal groove; 24, block; 25, first sewage outlet; 26, second sewage outlet; 27, first sewage pipe; 28, second sewage pipe; 29, annular groove; 30, sliding cylinder; 31, reset spring; 32, first opening; 33, second opening; 34, sewage valve. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] In order to facilitate the filtration of flue gas and increase the contact time between desulfurization and denitrification agents and flue gas, Figure 1 , Figure 2 As shown, an energy-saving and environment-friendly flue gas desulfurization and denitrification device of the present invention comprises a cylinder 1, the outer side of the cylinder 1 is connected to a smoke inlet pipe 2, the top of the cylinder 1 is connected to a smoke outlet pipe 3, a plurality of groups of vertical filtering structures are arranged inside the cylinder 1, the top of the filtering structures are all connected to a spray structure, a plurality of groups of filtering structures are all arranged below a sewage discharge structure, a vertically arranged driving structure is arranged inside the cylinder 1, and the driving structure is used to drive the filtering structure to rotate.

[0034] When in use, the flue gas generated during the combustion of the coal-fired boiler enters the cylinder 1 through the smoke inlet pipe 2. After the flue gas enters the cylinder 1, as the flue gas rises, a group of filtering structures are used to filter impurities such as dust in the flue gas. After the filtering is completed, a desulfurization and denitrification agent is sprayed on the flue gas by a spray structure to perform desulfurization and denitrification operations on the flue gas. As the flue gas continues to rise, the dust and other impurities in the flue gas are filtered again by the next group of filtering structures. After the filtering is completed, a group of spray structures are used to perform desulfurization and denitrification on the flue gas again. In this way, the impurities in the flue gas are filtered through multiple groups of filtering structures and spray structures, and the contact time between the desulfurization and denitrification agent and the flue gas is increased, thereby improving the desulfurization and denitrification effect of the flue gas.

[0035] When the dust and other impurities adsorbed in the filter structure reach a certain amount, the filter structure is driven by the driving structure, and the filter structure is discharged by the sewage discharge structure, so as to ensure the subsequent filtering effect of the flue gas and facilitate the subsequent desulfurization and denitrification of the flue gas.

[0036] In order to facilitate the impurity filtering of the flue gas, for example, Figure 2 , Figure 3 , Figure 4 , Fig.10 , Fig.11 As shown, the present invention also includes that the driving structure is fixedly connected to the mounting plate 4 at the bottom of the inner side of the cylinder 1, the mounting plate 4 is horizontally arranged, the mounting plate 4 is fixedly connected to the driving motor 5, the output end of the driving motor 5 is fixedly connected to the connecting pipe 6, the top end of the connecting pipe 6 is closed, and the connecting pipe 6 is provided with a plurality of groups of connecting ports, each group of connecting ports includes a first connecting port 7, a second connecting port 8, and a third connecting port 9, the first connecting port 7 is located below the second connecting port 8, and the second connecting port 8 is located below the third connecting port 9, and the connecting pipe 6 is provided with a plurality of groups of closing plates 10, and the closing plates 10 are located between two groups of connecting ports adjacent to each other;

[0037] The sewage discharge structure is rotatably connected to the connecting pipe 6. The filtering structure is initially located above the second connecting port 8 and outside the third connecting port 9. The filtering structure is in sliding contact with the connecting pipe 6, and the spraying structure is rotatably connected to the outside of the connecting pipe 6.

[0038] When in use, after the flue gas enters the cylinder 1, as the flue gas rises, the flue gas enters the connecting pipe 6 through the first connecting port 7. At this time, the third connecting port 9 is blocked by the filtering structure, and the connecting pipe 6 is blocked by the closing plate 10. At this time, the flue gas will be discharged through the second connecting port 8 and enter the bottom of the filtering structure. As the flue gas rises, the dust and other impurities in the flue gas are filtered by the post-filter structure, and the desulfurization and denitrification agent is sprayed by the spraying structure to desulfurize and denitrify the flue gas, thereby completing the primary filtration of the flue gas.

[0039] As the flue gas continues to rise, the flue gas enters the connecting pipe 6 again through another group of first connecting ports 7, and is discharged from the next group of second connecting ports 8 again, and is filtered again by the next group of filtering structures, and desulfurized and denitrated by the next group of spraying structures, thereby performing multiple filtering and desulfurization and denitration operations on the flue gas by multiple groups of filtering structures and spraying structures, thereby improving the desulfurization and denitration effects of the flue gas;

[0040] When there are more impurities adsorbed in one group of filter structures, the filter structure moves down. When the filter structure moves down to a certain position, the filter structure blocks the second connecting port 8, and the corresponding third connecting port 9 is opened. The flue gas enters the connecting pipe 6 through the first connecting port 7 and is discharged from the corresponding third connecting port 9. As the flue gas continues to rise, the flue gas enters the next group of first connecting ports 7, and the next group of filter structures is used to filter the flue gas, and the spray structure is used to desulfurize and denitrify the flue gas.

[0041] When the impurities adsorbed by the filter structure reach a certain amount, the filter structure moves down to a certain position, and relies on the sewage discharge structure to discharge sewage from the filter structure. After the sewage discharge is completed, the filter structure moves up again. At this time, the filter structure blocks the third connecting port 9 again, and opens the corresponding second connecting port 8 at the same time. At this time, the cleaned filter structure can filter the flue gas again, thereby improving the convenience and filtering effect of the flue gas.

[0042] In order to facilitate the spraying of desulfurization and denitrification agents to desulfurize and denitrify the flue gas, for example, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Fig. 9 As shown, the present invention also includes that the spray structure includes a plurality of spray rings 11, the spray rings 11 are rotatably connected to the connecting pipe 6, adjacent spray rings 11 are fixedly connected by connecting rods, the lower part of the spray ring 11 is fixedly connected to a magnet 12, the magnet 12 is magnetically adsorbed to the filter structure, and a plurality of vertically arranged cleaning rods 13 are fixedly connected between adjacent spray rings 11, and the lower end of the cleaning rod 13 is located in the filter structure;

[0043] A first liquid inlet channel 14 and a second liquid inlet channel 15 are provided on the top of the spray ring 11 . The first liquid inlet channel 14 and the second liquid inlet channel 15 are communicated with the interiors of a plurality of groups of spray rings 11 , respectively.

[0044] When in use, the first liquid inlet channel 14 is used to connect the desulfurization and denitrification liquid. When the flue gas enters the connecting pipe 6 again through the first connecting port 7 and is discharged from the corresponding second connecting port 8, the flue gas is filtered by the filtering structure, and the desulfurization and denitrification agent is sprayed by the spray ring 11 again to desulfurize and denitrify the flue gas.

[0045] When there are many impurities adsorbed in a group of filter structures, the corresponding filter structure is separated from the magnet 12 and moves downward. After the filter structure moves downward to a certain position, the corresponding third connecting port 9 is opened and the second connecting port 8 is blocked. When the filter structure moves downward to a certain position, the desulfurization and denitrification agent no longer enters the spray ring 11 through the first liquid inlet channel 14, and at the same time relies on the second liquid inlet channel 15 to connect with the water body. At this time, the water body enters the spray ring 11 through the second liquid inlet channel 15, and relies on the spray ring 11 to spray the water body and the cleaning rod 13 to clean the filter structure. When the filter structure is cleaned, the filter structure resets and moves upward and is adsorbed by the magnet 12 again, and at the same time opens the corresponding second connecting port 8 and closes the corresponding third connecting port 9, so as to facilitate the cleaning of the filter structure and improve the subsequent filtering effect of the flue gas.

[0046] In order to facilitate the cleaning of the filter material, for example, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the present invention also includes that the filtering structure includes an annular sliding frame 16 with an opening upward, the connecting pipe 6 passes through the annular sliding frame 16 and is in sliding contact with the annular sliding frame 16, the annular sliding frame 16 is located above the second connecting port 8, and filtering material is placed in the annular sliding frame 16. The upper surface of the annular sliding frame 16 is magnetically adsorbed to the magnet 12, and the inner bottom of the annular sliding frame 16 is provided with a plurality of groups of filter holes 17 that are arranged through, and the lower surface of the annular sliding frame 16 is fixedly connected to a plurality of groups of gas springs 18, and the lower ends of the gas springs 18 are provided with a plurality of groups of balls 19, and a scraper 20 is fixedly connected to one side of the lower end of the gas spring 18.

[0047] When in use, when the filter material placed in the annular sliding frame 16 absorbs a lot of dust and other impurities, the annular sliding frame 16 is separated from the magnet 12, and the annular sliding frame 16 squeezes the gas spring 18 when it moves down, and drives the gas spring 18 to compress and store force. When the annular sliding frame 16 moves down, the corresponding second connecting port 8 is blocked and the corresponding third connecting port 9 is opened. At this time, the flue gas can be discharged through the third connecting port 9. After the annular sliding frame 16 moves down to a certain position, the desulfurization and denitrification agent no longer enters the spray ring 11 through the first liquid inlet channel 14, and at the same time relies on the second liquid inlet channel 15 to connect with the water body. At this time, the water body passes through the second The liquid inlet channel 15 enters into the spray ring 11, and at the same time, the driving structure drives the annular sliding frame 16 to rotate. When the annular sliding frame 16 rotates, the spray ring 11 sprays water to rinse the filter material in the filter structure. At the same time, when the annular sliding frame 16 rotates, the cleaning rod 13 stirs the filter material, thereby improving the cleaning effect of the filter material. The water sprayed by the spray ring 11 enters the sewage discharge structure through the filter hole 17. When the annular sliding frame 16 rotates, the scraper 20 can be used to clean the sewage in the sewage discharge structure, which is convenient for sewage discharge, thereby improving the convenience and cleaning effect of the filter material.

[0048] When the filter material in the filter structure is cleaned, the annular sliding frame 16 is reset and moved upward by the reset effect of the gas spring 18, and is magnetically adsorbed by the magnet 12 again, while the corresponding third connecting port 9 is blocked and the corresponding second connecting port 8 is opened. The smoke will enter the bottom of the annular sliding frame 16 through the second connecting port 8 again, and the smoke will be filtered by the filter material, thereby further improving the convenience of use;

[0049] It should be noted that the filter material of the present invention can be ceramic balls and other materials;

[0050] It should be pointed out that an induction switch is connected between the annular sliding frame 16 and the spray ring 11 of the present invention, and the induction switch is used to control the on-off of the first liquid inlet channel 14 and the second liquid inlet channel 15, wherein the induction switch closes the first liquid inlet channel 14 and connects the second liquid inlet channel 15 when detecting that the annular sliding frame 16 and the magnet 12 are separated, and the induction switch can connect the first liquid inlet channel 14 and close the second liquid inlet channel 15 after detecting that the annular sliding frame 16 and the magnet 12 are adsorbed, thereby automatically controlling the spray ring 11 to spray the desulfurization and denitrification agents and water bodies according to the position of the annular sliding frame 16, thereby facilitating the cleaning of the filter material in the annular sliding frame 16; and it should be pointed out that the induction switch can adopt a travel switch or a distance sensor switch.

[0051] In order to improve the convenience of flushing the filter material, exemplary, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig.12 As shown, the present invention also includes that the sewage discharge structure includes a cleaning frame 21 with an opening upward, the cleaning frame 21 is located outside the connecting pipe 6 and is rotatably connected to the connecting pipe 6, the cleaning frame 21 is located above the first connecting port 7, and a plurality of groups of rotating plates 22 are fixedly connected to the outside of the connecting pipe 6, and the upper surfaces of the rotating plates 22 are all provided with polygonal grooves 23, and the lower surface of the annular sliding frame 16 is fixedly connected with a block 24 corresponding to the polygonal groove 23;

[0052] The balls 19 are in rolling contact with the inner upper surface of the cleaning frame 21 , and the scraper 20 is in sliding contact with the inner upper surface of the cleaning frame 21 . An adjustable sewage discharge structure is provided in the cleaning frame 21 .

[0053] When in use, when there are a lot of impurities such as dust adsorbed in the annular sliding frame 16, the annular sliding frame 16 is separated from the magnet 12, and the annular sliding frame 16 moves down to a certain position, and the clamping block 24 is clamped with the polygonal groove 23, and the connecting pipe 6 is driven to rotate by the driving motor 5. When the connecting pipe 6 rotates, the annular sliding frame 16 is driven to rotate by the clamping block 24, and at the same time, the spray ring 11 sprays water to rinse the filter material, and the cleaning rod 13 stirs the filter material to improve the rinsing effect;

[0054] The flushed water falls into the cleaning frame 21 through the filter hole 17. As the annular sliding frame 16 rotates, the scraper 20 moves. When the scraper 20 moves, the water in the cleaning frame 21 is discharged through the adjustable sewage discharge structure, thereby further improving the convenience of flushing the filter material.

[0055] In order to automatically open the corresponding sewage pipe according to the use status of the filter material, for example, Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig.12 As shown, the present invention also includes that the adjustable sewage discharge structure includes a first sewage discharge port 25 and a second sewage discharge port 26 which are arranged through one side of the cleaning frame 21, and a first sewage discharge pipe 27 and a second sewage discharge pipe 28 are arranged outside the cylinder 1, the first sewage discharge port 25 is connected to the first sewage discharge pipe 27 through a pipeline, and the second sewage discharge port 26 is connected to the second sewage discharge pipe 28 through a pipeline;

[0056] A vertically arranged annular groove 29 is provided on the upper surface of the cleaning frame 21, and a sliding cylinder 30 is slidably connected in the annular groove 29. A plurality of reset springs 31 are fixedly connected to the lower end of the sliding cylinder 30 and the inner side of the annular groove 29. A first opening 32 and a second opening 33 are provided through the sliding cylinder 30. The first opening 32 corresponds to the first sewage outlet 25 in the initial state, and the second opening 33 is located above the second sewage outlet 26 and staggered with the second sewage outlet 26 in the initial state. The upper surface of the sliding cylinder 30 is in compression contact with the lower surface of the annular sliding frame 16.

[0057] When in use, the desulfurization and denitrification agent is sprayed by the spray ring 11 to desulfurize and denitrify the flue gas. The sprayed desulfurization and denitrification agent falls into the cleaning frame 21 through the filter hole 17, and enters the first sewage pipe 27 through the first sewage outlet 25 and the first opening 32, so as to facilitate the recovery and storage of the desulfurization and denitrification agent.

[0058] When the filter material in the annular sliding frame 16 absorbs a lot of impurities such as dust, the annular sliding frame 16 is separated from the magnet 12 and moves downward. At this time, the desulfurization and denitrification agent no longer enters the spray ring 11 through the first liquid inlet channel 14. At the same time, the second liquid inlet channel 15 is used to connect the water body. At this time, the water body enters the spray ring 11 through the second liquid inlet channel 15, and the filter material is washed by spraying water from the spray ring 11. At the same time, when the annular sliding frame 16 moves downward, the sliding cylinder 30 is squeezed to move downward in the annular groove 29, and the sliding cylinder 30 is squeezed and reset when it moves downward. Spring 31, when the sliding cylinder 30 moves down to a certain position, the first opening 32 is staggered with the first sewage outlet 25, and the second opening 33 corresponds to the second sewage outlet 26. When the flushing water falls into the cleaning frame 21 through the filter hole 17, the flushing water enters the second sewage outlet 26 and the second opening 33 into the second sewage pipe 28. At the same time, the scraper 20 can further improve the convenience of cleaning the sewage in the cleaning frame 21, so as to automatically open the corresponding sewage pipe according to the use status of the filter material;

[0059] When the filter material is cleaned, the annular sliding frame 16 is reset and moved upward by relying on the reset effect of the gas spring 18, and is magnetically adsorbed to the magnet 12 again. At the same time, the sliding cylinder 30 is driven upward by relying on the reset effect of the reset spring 31. After the sliding cylinder 30 moves up to a certain position, the second opening 33 is staggered with the second sewage outlet 26 again, and the first opening 32 is connected with the first sewage outlet 25, so as to facilitate the discharge of the desulfurization and denitrification agent into the first sewage pipe 27 again.

[0060] For example, Figure 1 As shown, the present invention also includes that the lower ends of the first sewage pipe 27 and the second sewage pipe 28 are both connected to sewage valves 34.

[0061] When in use, the desulfurization and denitrification agents in the first sewage pipe 27 and the sewage in the second sewage pipe 28 can be discharged through the sewage valve 34 .

[0062] When the present invention is in use, the flue gas generated during the combustion of the coal-fired boiler enters the cylinder 1 through the smoke inlet pipe 2. After the flue gas enters the cylinder 1, as the flue gas rises, the flue gas enters the connecting pipe 6 through the first connecting port 7. At this time, the third connecting port 9 is blocked by the annular sliding frame 16, and the connecting pipe 6 is blocked by the closing plate 10. At this time, the flue gas will be discharged through the second connecting port 8 and enter the bottom of the annular sliding frame 16. The filter material placed in the annular sliding frame 16 is used to filter the dust and other impurities in the flue gas. At the same time, the first liquid inlet channel 14 is used to connect the desulfurization and denitrification liquid, and the spray ring 11 is used to spray the desulfurization and denitrification agent to desulfurize and denitrify the flue gas.

[0063] As the flue gas continues to rise, the flue gas enters the connecting pipe 6 again through another group of first connecting ports 7, and is discharged from the next group of second connecting ports 8 again, and is filtered again by the next group of filtering structures, and at the same time, the next group of spray rings 11 spray desulfurization and denitrification agents to desulfurize and denitrify the flue gas, thereby relying on multiple groups of filtering structures and spraying structures to perform multiple filtering and desulfurization and denitrification operations on the flue gas, thereby improving the desulfurization and denitrification effects of the flue gas;

[0064] The desulfurization and denitrification agent is sprayed by the spray ring 11 to desulfurize and denitrify the flue gas. The sprayed desulfurization and denitrification agent falls into the cleaning frame 21 through the filter hole 17, and enters the first sewage pipe 27 through the first sewage outlet 25 and the first opening 32, so as to facilitate the recovery and storage of the desulfurization and denitrification agent.

[0065] When the filter material placed in the annular sliding frame 16 absorbs a lot of dust and other impurities, the annular sliding frame 16 is separated from the magnet 12, and the annular sliding frame 16 squeezes the gas spring 18 when it moves down, and drives the gas spring 18 to compress and store force. When the annular sliding frame 16 moves down, the corresponding second connecting port 8 is blocked and the corresponding third connecting port 9 is opened. At this time, the flue gas can be discharged through the third connecting port 9. After the annular sliding frame 16 moves down to a certain position, the desulfurization and denitrification agent no longer enters the spray ring 11 through the first liquid inlet channel 14, and the water body is connected by the second liquid inlet channel 15. At this time, the water body enters the spray ring 11 through the second liquid inlet channel 15, and the block 24 and The polygonal groove 23 is engaged, and the connecting pipe 6 is driven to rotate by the driving motor 5. When the connecting pipe 6 rotates, the annular sliding frame 16 is driven to rotate by the clamping block 24. When the annular sliding frame 16 rotates, the filter material in the annular sliding frame 16 is rinsed by spraying water by the spray ring 11. At the same time, when the annular sliding frame 16 rotates, the filter material is stirred by the cleaning rod 13, so as to improve the cleaning effect of the filter material. The water sprayed by the spray ring 11 enters the cleaning frame 21 through the filter hole 17. When the annular sliding frame 16 rotates, the sewage in the cleaning frame 21 can be cleaned by the scraper 20, which is convenient for the sewage to be discharged, so as to improve the convenience and cleaning effect of the filter material.

[0066] When the annular sliding frame 16 moves downward, the sliding cylinder 30 is squeezed to move downward in the annular groove 29, and the sliding cylinder 30 is squeezed to move downward. The reset spring 31 is squeezed when the sliding cylinder 30 moves downward. At the same time, when the sliding cylinder 30 moves downward to a certain position, the first opening 32 is staggered with the first sewage outlet 25, and the second opening 33 corresponds to the second sewage outlet 26. When the flushed water falls into the cleaning frame 21 through the filter hole 17, the flushed water enters the second sewage outlet 26 and the second opening 33 into the second sewage pipe 28. At the same time, the scraper 20 can further improve the convenience of cleaning the sewage in the cleaning frame 21, so as to automatically open the corresponding sewage pipe according to the use status of the filter material;

[0067] When the filter material is cleaned, the annular sliding frame 16 is reset and moved upward by relying on the reset effect of the gas spring 18, and is magnetically adsorbed to the magnet 12 again. At the same time, the sliding cylinder 30 is driven upward by relying on the reset effect of the reset spring 31. After the sliding cylinder 30 moves up to a certain position, the second opening 33 is staggered with the second sewage outlet 26 again, and the first opening 32 is connected to the first sewage outlet 25. At the same time, the spray ring 11 is connected to the desulfurization and denitrification agent again, so as to facilitate the subsequent filtration and desulfurization and denitrification of the flue gas.

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An energy-saving and environmentally friendly flue gas desulfurization and denitrification device, characterized in that: It comprises a cylinder (1), the outer side of the cylinder is connected to a smoke inlet pipe (2), the top of the cylinder (1) is connected to a smoke outlet pipe (3), a plurality of groups of vertically arranged filter structures are arranged inside the cylinder (1), the tops of the filter structures are connected to spray structures, a plurality of groups of filter structures are arranged below sewage discharge structures, and a vertically arranged drive structure is arranged inside the cylinder (1), the drive structure is used to drive the filter structure to rotate; The driving structure comprises a mounting plate (4) fixedly connected to the bottom of the inner side of the cylinder (1), the mounting plate (4) being arranged horizontally, a driving motor (5) being fixedly connected to the mounting plate (4), an output end of the driving motor (5) being fixedly connected to a connecting pipe (6), the top end of the connecting pipe (6) being closed, a plurality of groups of connecting ports being provided on the connecting pipe (6), each group of the connecting ports comprising a first connecting port (7), a second connecting port (8), and a third connecting port (9), the first connecting port (7) being located below the second connecting port (8), the second connecting port (8) being located below the third connecting port (9), a plurality of groups of closing plates (10) being provided in the connecting pipe (6), the closing plates (10) being located between two groups of connecting ports adjacent to each other in upper and lower directions; The sewage discharge structure is rotatably connected to the connecting pipe (6); the filtering structure is initially located above the second connecting port (8); the filtering structure is initially located outside the third connecting port (9); the filtering structure is in sliding contact with the connecting pipe (6); and the spray structure is rotatably connected to the outside of the connecting pipe (6); The filtering structure comprises an annular sliding frame (16) with an opening upward, the connecting pipe (6) passes through the annular sliding frame (16) and is in sliding contact with the annular sliding frame (16), in an initial state, the annular sliding frame (16) is located above the second connecting port (8), filtering material is placed in the annular sliding frame (16), a plurality of groups of filter holes (17) are arranged through the inner bottom of the annular sliding frame (16), a plurality of groups of gas springs (18) are fixedly connected to the lower surface of the annular sliding frame (16), and a plurality of groups of balls (19) are arranged at the lower ends of the gas springs (18); when the annular sliding frame (16) moves downward, the corresponding second connecting port (8) is blocked and the corresponding third connecting port (9) is opened; The sewage discharge structure comprises a cleaning frame (21) with an opening facing upwards, the cleaning frame (21) being located outside the connecting pipe (6) and being rotatably connected to the connecting pipe (6), the cleaning frame (21) being located above the first connecting port (7), and the ball bearing (19) being in rolling contact with the inner upper surface of the cleaning frame (21).

2. The energy-saving and environment-friendly flue gas desulfurization and denitrification device according to claim 1 is characterized in that: The spray structure comprises a plurality of groups of spray rings (11), the spray rings (11) being rotatably connected to the connecting pipe (6), adjacent spray rings (11) being fixedly connected via connecting rods, a magnet (12) being fixedly connected to the lower part of the spray ring (11), the magnet (12) being magnetically attracted to the filter structure, a plurality of groups of vertically arranged cleaning rods (13) being fixedly connected between adjacent spray rings (11), the lower ends of the cleaning rods (13) being located within the filter structure; A first liquid inlet channel (14) and a second liquid inlet channel (15) are provided on the top of the spray ring (11); the first liquid inlet channel (14) and the second liquid inlet channel (15) are respectively connected to the inside of a plurality of groups of spray rings (11).

3. The energy-saving and environment-friendly flue gas desulfurization and denitrification device according to claim 2 is characterized in that: The upper surface of the annular sliding frame (16) is magnetically attracted to the magnet (12), and a scraper (20) is fixedly connected to one side of the lower end of the gas spring (18).

4. The energy-saving and environment-friendly flue gas desulfurization and denitrification device according to claim 3 is characterized in that: A plurality of groups of rotating plates (22) are fixedly connected to the outer side of the connecting pipe (6), and the upper surfaces of the rotating plates (22) are each provided with a polygonal groove (23). A clamping block (24) corresponding to the polygonal groove (23) is fixedly connected to the lower surface of the annular sliding frame (16); The scraper (20) is in sliding contact with the inner upper surface of the cleaning frame (21), and an adjustable sewage discharge structure is provided in the cleaning frame (21).

5. The energy-saving and environment-friendly flue gas desulfurization and denitrification device according to claim 4 is characterized in that: The adjustable sewage discharge structure comprises a first sewage discharge port (25) and a second sewage discharge port (26) which are arranged through one side of the cleaning frame (21); a first sewage discharge pipe (27) and a second sewage discharge pipe (28) are arranged outside the cylinder (1); the first sewage discharge port (25) is connected to the first sewage discharge pipe (27) through a pipeline, and the second sewage discharge port (26) is connected to the second sewage discharge pipe (28) through a pipeline; The upper surface of the cleaning frame (21) is provided with a vertically arranged annular groove (29), a sliding cylinder (30) is slidably connected in the annular groove (29), a plurality of groups of return springs (31) are fixedly connected at the lower end of the sliding cylinder (30) and the inner side of the annular groove (29), a first opening (32) and a second opening (33) are provided through the sliding cylinder (30), the first opening (32) corresponds to the first sewage outlet (25) in an initial state, the second opening (33) is located above the second sewage outlet (26) and staggered with the second sewage outlet (26) in an initial state, and the upper surface of the sliding cylinder (30) is in compression contact with the lower surface of the annular sliding frame (16).

6. The energy-saving and environment-friendly flue gas desulfurization and denitrification device according to claim 5 is characterized in that: The lower ends of the first sewage discharge pipe (27) and the second sewage discharge pipe (28) are both connected to sewage discharge valves (34).

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