Environment-friendly spraying device for denitration

Abstract

The utility model discloses an environment-friendly spraying device for denitration, which relates to the technical field of denitration spraying devices and comprises a tank body and an air inlet device, and a linkage component is fixedly mounted on the inner wall of the tank body. By starting the motor, the spraying device and the gas inlet device, the motor drives the rotating rod to enable the first fan blade, the second fan blade, the stirring rod and the rotating frame to rotate, waste gas enters denitration water for primary denitration, the stirring rod stirs the denitration water and the waste gas so as to enhance the denitration effect, and part of the waste gas which is not completely denitrated floats out of the water surface; a second fan blade secondarily blows the waste gas to denitration water for denitration again, part of the waste gas which is not completely denitrated drifts upwards from a first through hole, a first fan rotates to generate negative pressure to pull the waste gas upwards, a rotating frame drives a retaining ring to rotate, and the retention time of the waste gas is prolonged by utilizing staggered opening and closing of a second through hole and the first through hole; and the denitration water is matched to form accumulated water at the edge of the second gas guide cover for re-denitration, so that multi-stage denitration of the waste gas is realized, and the denitration strength and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of denitration spraying devices, in particular to a spraying device for environmental protection denitration. Background Technique

[0002] During industrial production processes, a large amount of flue gas containing sulfur and nitrate is generated. When this flue gas enters the atmosphere, it will pollute the environment, cause great damage to the atmosphere, and even threaten people's physical health. Therefore, this kind of gas needs to be treated and can only be discharged into the atmosphere after being qualified. Currently, most of the devices used for denitration are spray towers. The medicament sprayed by the spray tower reacts with the nitrate-containing flue gas to achieve the purpose of denitration.

[0003] An environmental protection denitration spraying device disclosed in the existing patent (publication number: CN220677351U) has a clamping groove opened inside the air inlet seat. A filter seat is clamped inside the clamping groove, and a filter net is installed inside the filter seat. When external flue gas enters the air inlet seat, the dust particles in the flue gas can be filtered out, preventing the dust particles from mixing with the spraying liquid and causing blockage of the spray heads during spraying, ensuring the normal progress of the spraying work. And when the bolts on the sealing plate are removed, the filter seat can be quickly taken out to clean the filter net, reducing the cleaning difficulty.

[0004] However, there are still some deficiencies in the existing equipment. First of all, when the existing equipment is denitrifying, a considerable part of the waste gas that has not been fully denitrified will still flow upward from the edge of the air guide cover, and the denitrification quality is low. And after using the inner wall of the tank for a period of time, a layer of dirt will adhere to the surface, affecting the denitrification efficiency of the equipment, and the subsequent cleaning intensity is relatively high. Content of the Utility Model

[0005] Based on this, the purpose of the present utility model is to provide a spraying device for environmental protection denitration to solve the technical problem of still having un-fully denitrified waste gas overflowing mentioned in the above background technique.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: A spraying device for environmental protection denitration, including a tank body and an air inlet device, and a linkage component is fixedly installed on the inner wall of the tank body;

[0007] The linkage assembly includes a second air guide cover fixedly connected to the upper end of the inner wall of the tank. A plurality of first through holes are equidistantly arranged around the center at the edge position of the second air guide cover. A rotating rod is rotatably connected to the middle position of the second air guide cover, and the outer wall of the bottom end of the rotating rod extends to the lower surface of the tank. A rotating frame is fixedly installed above the second air guide cover on the outer wall of the top end of the rotating rod. A buckle is fixedly connected to the outer wall of the bottom end of the rotating frame. A plurality of second through holes are equidistantly arranged around the center on the outer wall of the buckle. A first wind blade is fixedly installed above the rotating frame on the outer wall of the top end of the rotating rod. A second wind blade is fixedly installed below the second air guide cover on the outer wall of the rotating rod. An annular row pipe is installed on the inner wall of the tank below the second wind blade through a fixing frame. A plurality of air outlet covers are equidistantly installed around the center on the lower curved outer wall of the annular row pipe. A plurality of stirring rods are fixedly installed below the air outlet covers on the outer wall of the lower end of the rotating rod. A motor is fixedly installed at the center position of the lower surface of the tank, and the output end of the motor is connected to the rotating rod through a coupling.

[0008] By adopting the above technical solution, when the denitrification water in the tank reaches the predetermined water level, the water level monitoring device is triggered to give a prompt by starting the spraying device. Subsequently, the motor, the spraying device and the air inlet device are started. The motor drives the rotating rod to make the first wind blade, the second wind blade, the stirring rod and the rotating frame rotate. The waste gas enters the denitrification water for primary denitrification. The stirring rod stirs the denitrification water and the waste gas to enhance the denitrification effect. Part of the waste gas that is not completely denitrified floats out of the water surface. The second wind blade blows it towards the denitrification water again for secondary denitrification. Part of the waste gas that is not completely denitrified drifts upward through the first through holes. The first fan rotates to generate negative pressure to draw the waste gas upward. The rotating frame drives the buckle to rotate, and the staggered opening and closing of the second through holes and the first through holes are used to extend the residence time of the waste gas, and cooperate with the accumulated water formed at the edge of the second air guide cover by the denitrification water for secondary denitrification, realizing multi-stage denitrification of the waste gas, improving the denitrification intensity and efficiency. At the same time, the rotating rod drives the stirring rod and the curved scraping plate to clean part of the inner wall of the tank, and drives the rotating frame and the brush to rotate to clean the surface of the second air guide cover to prevent dirt from adhering.

[0009] Further, the plurality of first through holes and the plurality of second through holes are arranged in a staggered manner. The buckle is movably sleeved on the outer wall of the second air guide cover. The outer wall of the bottom end of the rotating rod is rotatably connected to the tank. A plurality of brushes are equidistantly installed on the lower surface of the rotating frame, and the brushes are attached to the upper surface of the second air guide cover.

[0010] The staggered arrangement of the plurality of first through holes and the plurality of second through holes at equal distances can regularly extend the residence reaction time of the waste gas and improve the denitrification efficiency. The number of the second through holes is eight, and the number of the first through holes is twenty-four. The plurality of brushes attached to the upper surface of the second air guide cover can scrape and clean the residual water stains on the upper surface of the second air guide cover or the attachments generated in the waste gas, reducing the labor intensity of subsequent cleaning.

[0011] Furthermore, the blade orientations of the first wind blade and the second wind blade are opposite to the wind direction, and one end outer wall of the annular row pipe is connected to the intake device through a gas pipe.

[0012] The first wind blade can form a negative pressure area between the first air guide cover and the second air guide cover to suck the waste gas below. The annular row pipe can directly inject the waste gas into the denitrification water from multiple directions, thereby improving the denitrification efficiency.

[0013] Furthermore, a curved scraper is fixedly installed at the end of each group of stirring rods, and the surface of the curved scraper is attached to the inner wall of the tank body. The multiple groups of stirring rods and the curved scrapers are arranged in an alternating manner.

[0014] The multiple groups of curved scrapers arranged in an alternating manner can scrape and clean the inner wall of the tank body during rotation, ensuring the cleanliness of the inner wall of the equipment and reducing the subsequent cleaning intensity.

[0015] Furthermore, a first air guide cover is fixedly connected to the inner wall of the top end of the tank body above the first wind blade, and an exhaust pipe is fixedly connected to the middle position of the first air guide cover.

[0016] The first air guide cover can partition the interior of the tank body, and the exhaust pipe can facilitate the discharge of the processed gas.

[0017] Furthermore, the outer wall of the top end of the exhaust pipe extends to the outer wall of the top end of the tank body, and the cross-sectional shapes of the first air guide cover, the second air guide cover, and the rotating frame are all trapezoidal.

[0018] The cross-sectional shapes of the first air guide cover, the second air guide cover, and the rotating frame being all trapezoidal can facilitate the rise and gathering of gas and water vapor, facilitating centralized treatment.

[0019] Furthermore, multiple groups of supporting feet are fixedly connected to the lower surface of the tank body at equal intervals around the center. A spraying device is fixedly installed at one end of the curved outer wall of the tank body away from the intake device, and the end of the spraying device extends to the inner wall of the tank body. A water level monitoring device is fixedly installed on one side of the inner wall of the tank body above the stirring rod.

[0020] The multiple groups of supporting feet can provide stable support for the overall equipment. The horizontal height of the water level monitoring device is higher than that of the stirring rod and is flush with the preset water level.

[0021] In summary, the main beneficial effects of the present utility model are as follows:

[0022] The utility model starts the motor, the spraying device and the air intake device. The motor drives the rotating rod to make the first wind blade, the second wind blade, the stirring rod and the rotating frame rotate. The waste gas enters the denitrifying water for primary denitrification. The stirring rod stirs the denitrifying water and the waste gas to enhance the denitrification effect. The incompletely denitrified waste gas floats out of the water surface. The second wind blade blows it secondarily towards the denitrifying water for re-denitrification. Part of the incompletely denitrified waste gas goes upward through the first through hole. The first fan rotates to generate negative pressure to draw the waste gas upward. The rotating frame drives the buckle to rotate. The staggered opening and closing of the second through hole and the first through hole are used to extend the residence time of the waste gas. Combined with the accumulated water formed at the edge of the second air guide cover by the denitrifying water for re-denitrification, multi-stage denitrification of the waste gas is realized, the denitrification intensity and efficiency are improved. At the same time, the rotating rod drives the stirring rod and the curved scraping plate to clean part of the inner wall of the tank body, and drives the rotating frame and the brush to rotate to clean the surface of the second air guide cover to prevent dirt from adhering. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the front view of the utility model;

[0024] Figure 2 is the flat sectional view of the utility model;

[0025] Figure 3 is the detailed internal structure diagram of the utility model;

[0026] Figure 4 is the exploded view of the internal structure of the utility model;

[0027] Figure 5 is the exploded bottom view of the internal structure of the utility model.

[0028] In the figure: 1. tank body; 11. support feet; 12. exhaust pipe; 13. first air guide cover; 14. air intake device; 15. spraying device; 16. water level monitoring device; 2. linkage assembly; 21. second air guide cover; 211. first through hole; 22. rotating frame; 221. buckle; 222. second through hole; 223. brush; 23. rotating rod; 24. first wind blade; 25. second wind blade; 26. annular row pipe; 261. air outlet cover; 27. stirring rod; 271. curved scraping plate; 28. motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0030] The embodiments of the present utility model will be described below according to its overall structure.

[0031] A spraying device for environmental protection denitrification, as Figure 1 -Figure 5 As shown in the figure, it includes a tank body 1 and an air inlet device 14. A linkage component 2 is fixedly installed on the inner wall of the tank body 1;

[0032] The linkage component 2 includes a second air guide cover 21 fixedly connected to the upper end of the inner wall of the tank body 1. A plurality of groups of first through holes 211 are equidistantly arranged around the center at the edge position of the second air guide cover 21. A rotating rod 23 is rotatably connected to the middle position of the second air guide cover 21, and the outer wall of the bottom end of the rotating rod 23 extends to the lower surface of the tank body 1. A rotating frame 22 is fixedly installed above the second air guide cover 21 on the outer wall of the top end of the rotating rod 23. A buckle 221 is fixedly connected to the outer wall of the bottom end of the rotating frame 22. A plurality of groups of second through holes 222 are equidistantly arranged around the center on the outer wall of the buckle 221. A first wind blade 24 is fixedly installed above the rotating frame 22 on the outer wall of the top end of the rotating rod 23. A second wind blade 25 is fixedly installed below the second air guide cover 21 on the outer wall of the rotating rod 23. An annular row pipe 26 is installed on the inner wall of the tank body 1 below the second wind blade 25 through a fixing frame. A plurality of groups of air outlet covers 261 are equidistantly installed around the center on the lower curved outer wall of the annular row pipe 26. A plurality of groups of stirring rods 27 are fixedly installed below the air outlet covers 261 on the outer wall of the lower end of the rotating rod 23. A motor 28 is fixedly installed at the center position of the lower surface of the tank body 1. The output end of the motor 28 is connected to the rotating rod 23 through a coupling.

[0033] By starting the spraying device 15, when the denitrifying water in the tank body 1 reaches the predetermined water level, the water level monitoring device 16 is triggered to give a prompt. Subsequently, the motor 28, the spraying device 15, and the air inlet device 14 are started. The motor 28 drives the rotating rod 23 to rotate the first wind blade 24, the second wind blade 25, the stirring rod 27, and the rotating frame 22. The waste gas enters the denitrifying water for primary denitrification. The stirring rod 27 stirs the denitrifying water and the waste gas to enhance the denitrification effect. Part of the waste gas that is not completely denitrified floats out of the water surface. The second wind blade 25 blows it twice towards the denitrifying water for re-denitrification. Part of the waste gas that is not completely denitrified drifts upward from the first through holes 211. The rotation of the first fan generates negative pressure to draw the waste gas upward. The rotating frame drives the buckle 221 to rotate, and the staggered opening and closing of the second through holes 222 and the first through holes 211 are used to extend the residence time of the waste gas. It cooperates with the accumulated water formed at the edge of the second air guide cover 21 by the denitrifying water for re-denitrification, realizing multi-stage denitrification of the waste gas, improving the denitrification intensity and efficiency. At the same time, the rotating rod 23 drives the stirring rod 27 and the curved scraping plate 271 to clean part of the inner wall of the tank body 1, drives the rotating frame 22 and the brush 223 to rotate to clean the surface of the second air guide cover 21, and prevents dirt from adhering.

[0034] Please refer to Figure 2 - Figure 5, multiple groups of first through-holes 211 and multiple groups of second through-holes 222 are arranged in an alternating manner, and the snap ring 221 is movably sleeved on the outer wall of the second air guide cover 21. The bottom outer wall of the rotating rod 23 is rotationally connected to the tank body 1. Multiple groups of brushes 223 are equidistantly installed on the lower surface of the rotating frame 22, and the brushes 223 are in contact with the upper surface of the second air guide cover 21.

[0035] By arranging multiple groups of first through-holes 211 and multiple groups of second through-holes 222 in an equidistant and alternating manner, the residence time of the waste gas in the reaction can be regularly extended, improving the denitration efficiency. The number of the second through-holes 222 is eight groups, and the number of the first through-holes 211 is twenty-four groups. Multiple groups of brushes 223, and the brushes 223 being in contact with the upper surface of the second air guide cover 21 can scrape and clean the water stains remaining on the upper surface of the second air guide cover 21 or the attachments generated in the waste gas, reducing the labor intensity of subsequent cleaning.

[0036] Please refer to Figure 2 - Figure 5 , the blade orientations of the first wind blade 24 and the second wind blade 25 are opposite to the wind direction, and one end outer wall of the annular row pipe 26 is connected to the intake device 14 through a trachea.

[0037] Through the first wind blade 24, a negative pressure area can be formed between the first air guide cover 13 and the second air guide cover 21 to attract the waste gas below. The annular row pipe 26 can directly inject the waste gas into the denitration water from multiple directions, thereby improving the denitration efficiency.

[0038] Please refer to Figure 2 - Figure 5 , a curved scraper 271 is fixedly installed at the end of each stirring rod 27, and the surface of the curved scraper 271 is in contact with the inner wall of the tank body 1. Multiple groups of stirring rods 27 and curved scrapers 271 are arranged in an alternating manner.

[0039] Through the multiple groups of curved scrapers 271 arranged in an alternating manner, the inner wall of the tank body 1 can be scraped and cleaned during rotation, ensuring the cleanliness of the inner wall of the equipment and reducing the subsequent cleaning intensity.

[0040] Please refer to Figure 1 - Figure 2 , a first air guide cover 13 is fixedly connected to the inner wall at the top of the tank body 1 above the first wind blade 24, and an exhaust pipe 12 is fixedly connected to the middle position of the first air guide cover 13.

[0041] Through the first air guide cover 13, the internal partition of the tank body 1 can be separated, and the exhaust pipe 12 can facilitate the discharge of the treated gas.

[0042] Please refer to Figure 2 - Figure 5, the outer wall of the top end of the exhaust pipe 12 extends to the outer wall of the top end of the tank body 1, and the cross-sectional shapes of the first air guide cover 13, the second air guide cover 21, and the rotating frame 22 are all trapezoidal.

[0043] Since the cross-sectional shapes of the first air guide cover 13, the second air guide cover 21, and the rotating frame 22 are all trapezoidal, it is convenient for gas and water vapor to rise and gather, facilitating centralized treatment.

[0044] Please refer to Figure 1 - Figure 2 , a plurality of groups of supporting feet 11 are fixedly connected to the lower surface of the tank body 1 at equal distances around the center. One end of the curved outer wall of the tank body 1 away from the air inlet device 14 is fixedly installed with a spraying device 15, and the end of the spraying device 15 extends to the inner wall of the tank body 1. A water level monitoring device 16 is fixedly installed on one side of the inner wall of the tank body 1 above the stirring rod 27.

[0045] The plurality of groups of supporting feet 11 can provide stable support for the overall equipment. The horizontal slow height of the water level monitoring device 16 is higher than that of the stirring rod 27 and is flush with the preset water level.

[0046] The working principle of the present utility model is as follows: When the denitrification water in the tank body 1 reaches the predetermined water level, the spraying device 15 is started to trigger the prompt of the water level monitoring device 16. Subsequently, the motor 28, the spraying device 15, and the air inlet device 14 are started. The motor 28 drives the rotating rod 23 to rotate the first wind blade 24, the second wind blade 25, the stirring rod 27, and the rotating frame 22. The waste gas enters the denitrification water for primary denitrification. The stirring rod 27 stirs the denitrification water and the waste gas to enhance the denitrification effect. Part of the waste gas that is not completely denitrified floats out of the water surface. The second wind blade 25 blows it towards the denitrification water again for secondary denitrification. Part of the waste gas that is not completely denitrified drifts upward through the first through hole 211. The first fan rotates to generate negative pressure to draw the waste gas upward. The rotating frame drives the buckle 221 to rotate, and the second through hole 222 and the first through hole 211 are staggered and opened and closed to extend the residence time of the waste gas. It cooperates with the accumulated water formed at the edge of the second air guide cover 21 by the denitrification water to denitrify again, realizing multi-stage denitrification of the waste gas, improving the denitrification intensity and efficiency. At the same time, the rotating rod 23 drives the stirring rod 27 and the curved scraping plate 271 to clean part of the inner wall of the tank body 1, and drives the rotating frame 22 and the brush 223 to rotate to clean the surface of the second air guide cover 21, preventing dirt from adhering.

[0047] Although the embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and are not limitations thereto. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can, without departing from the principles and purposes of the present utility model, make modifications, substitutions, and variations that do not contribute creatively to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. An environmentally friendly denitrification spraying device, comprising a tank body (1) and an air intake device (14), characterized in that: A linkage assembly (2) is fixedly mounted on the inner wall of the tank body (1); The linkage assembly (2) comprises a second air guide cover (21) fixedly connected to the upper end of the inner wall of the tank body (1); a plurality of first through holes (211) are equidistantly provided at the edge of the second air guide cover (21) around the center of a circle; a rotating rod (23) is rotatably connected to the middle position of the second air guide cover (21); the bottom outer wall of the rotating rod (23) extends to the lower surface of the tank body (1); a rotating frame (22) is fixedly installed on the top outer wall of the rotating rod (23) above the second air guide cover (21); a buckle (221) is fixedly connected to the bottom outer wall of the rotating frame (22); a plurality of second through holes (222) are equidistantly provided on the outer wall of the buckle (221) around the center of a circle; the top outer wall of the rotating rod (23) is rotatably connected to the outer wall of the second air guide cover (21); A first fan blade (24) is fixedly mounted on a wall located above the rotating frame (22); an outer wall of the rotating rod (23) is located below the second air guide cover (21) and is fixedly mounted on a second fan blade (25); an inner wall of the tank body (1) is located below the second fan blade (25) and is mounted with an annular coupling pipe (26) via a fixed frame; a plurality of groups of air outlet covers (261) are equidistantly mounted on the outer wall of the lower curved surface of the annular coupling pipe (26) around the center of a circle; a plurality of groups of stirring rods (27) are fixedly mounted on the outer wall of the lower end of the rotating rod (23) located below the air outlet cover (261); a motor (28) is fixedly mounted at the center of the lower surface of the tank body (1); an output end of the motor (28) is connected to the rotating rod (23) via a coupling.

2. The environmentally friendly denitrification spraying device according to claim 1, characterized in that: A plurality of groups of the first through holes (211) and a plurality of groups of the second through holes (222) are arranged alternately, and the buckle (221) is movably sleeved on the outer wall of the second air guide cover (21), the outer wall of the bottom end of the rotating rod (23) is in a rotatable connection with the tank body (1), and a plurality of groups of brushes (223) are equidistantly installed on the lower surface of the rotating frame (22), and the brushes (223) are in contact with the upper surface of the second air guide cover (21).

3. The environmentally friendly denitrification spraying device according to claim 1 is characterized in that: The blade orientations and wind directions of the first fan blade (24) and the second fan blade (25) are opposite, and the outer wall of one end of the annular connecting pipe (26) is connected to the air intake device (14) via an air pipe.

4. The environmentally friendly denitrification spraying device according to claim 1, characterized in that: A curved scraper (271) is fixedly mounted on the end of each group of stirring rods (27), and the surface of the curved scraper (271) is in contact with the inner wall of the tank body (1). The multiple groups of stirring rods (27) and curved scrapers (271) are arranged in a staggered manner.

5. The environmentally friendly denitrification spraying device according to claim 1, characterized in that: A first air guide cover (13) is fixedly connected to the inner wall of the top end of the tank body (1) above the first fan blade (24), and an exhaust pipe (12) is fixedly connected to the middle position of the first air guide cover (13).

6. The environmentally friendly denitrification spraying device according to claim 5, characterized in that: The top outer wall of the exhaust pipe (12) extends to the top outer wall of the tank body (1), and the cross-sectional shapes of the first air guide cover (13), the second air guide cover (21) and the rotating frame (22) are all trapezoidal.

7. The environmentally friendly denitrification spraying device according to claim 1, characterized in that: The lower surface of the tank body (1) is fixedly connected with a plurality of groups of legs (11) at equal intervals around the center, a spray device (15) is fixedly mounted on one end of the curved outer wall of the tank body (1) away from the air inlet device (14), and the end of the spray device (15) extends to the inner wall of the tank body (1), and a water level monitoring device (16) is fixedly mounted on one side of the inner wall of the tank body (1) above the stirring rod (27).

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