Strong-atomization efficient ammonia water denitration device
By designing a highly efficient ammonia denitrification device with strong atomization, nitrogen oxides are removed by reacting a catalyst layer with ammonia water, and dust is removed by steam adsorption and cleaning scrapers. This solves the problems of insufficient ammonia water injection and dust discharge, achieving efficient denitrification and environmental protection.
Patent Information
- Application Number
- CN202520485564.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-19
AI Technical Summary
In the existing technology, insufficient ammonia injection leads to poor denitrification effect, while excessive injection increases costs. Furthermore, the failure to filter dust in the flue gas causes secondary pollution to the environment due to the discharge of dust after denitrification.
A highly efficient ammonia denitrification device with strong atomization was designed, comprising a shell, a catalyst layer, a filter screen, a cleaning scraper, and a striking rod. The device removes nitrogen oxides by mixing flue gas with ammonia water and reacting it with the catalyst layer. After denitrification, the nitrogen oxides on the catalyst layer are adsorbed by steam. The filter screen filters dust, and the cleaning scraper and striking rod remove adhering dust.
It effectively removes nitrogen oxides from flue gas, prevents dust emissions from causing environmental pollution, extends the life of the catalyst layer, and ensures the long-term filtration effect of the filter frame.
Smart Images
Figure CN223945386U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of denitration device, specifically a kind of strong atomization efficient ammonia water denitration device. BACKGROUND
[0002] The tail gas generated in the production of carbon black is generally used for power generation with the matched generator set, and the nitrogen oxides in the waste gas after combustion are one of the main atmospheric pollutants, which not only causes damage to the environment, but also threatens human health. How to efficiently remove nitrogen oxides is an important part of carbon black production.
[0003] In order to treat the nitrogen oxides after combustion of the tail gas in the prior art, ammonia water needs to be added to the flue gas for denitration. Insufficient spraying of ammonia water will result in poor denitration effect, and excessive spraying will cause cost increase and ammonia escape data exceeding the standard. In addition, the dust in the flue gas is not filtered in advance, which will cause the flue gas after denitration to carry dust and be discharged, thereby causing secondary pollution to the surrounding environment. UTILITY MODEL CONTENTS
[0004] In view of the above problems in the prior art, the main purpose of the utility model is to provide a strong atomization efficient ammonia water denitration device.
[0005] The technical scheme of the utility model is as follows: a shell is provided, a connecting pipe is fixedly connected to the top of the shell, catalyst layers are equidistantly arranged in the shell, filter screen racks are equidistantly arranged in the shell and above the catalyst layers, cleaning scrapers are arranged on the top of the filter screen racks, knocking rods are arranged on the inner side of the cleaning scrapers and above the filter screen racks, steam inlets are equidistantly fixedly connected to one side of the shell and above the filter screen racks, and a transmission assembly is arranged in the shell.
[0006] As a preferred embodiment, the transmission assembly comprises a motor and a linkage unit, the motor is fixedly connected to one side of the outer shell through a mounting block, the output end of the motor is fixedly connected with a rotating rod, the outer side of the rotating rod is equidistantly fixedly connected with a third bevel gear, one side of the inner wall of the shell is equidistantly fixedly connected with a rotating shaft corresponding to the third bevel gear, one end of each of the rotating shafts extends to the outside of the shell and is fixedly connected with a fourth bevel gear, each of the third bevel gears is meshingly connected with the corresponding fourth bevel gear, the inner wall of the shell is equidistantly fixedly connected with a first fixed plate corresponding to the cleaning scraper, each of the cleaning scrapers is rotatably connected to the inside of the corresponding first fixed plate, the outer side of each of the rotating shafts in the shell is fixedly connected with a first bevel gear, the outer side of each of the cleaning scrapers is fixedly connected with a second bevel gear above, and the first bevel gear is meshingly connected with the second bevel gear. The knocking rod can reciprocate through the linkage unit.
[0007] As a preferred implementation form, the linkage unit comprises an eccentric wheel, the plurality of rotating shafts are fixedly connected with eccentric wheels at one end away from the fourth bevel gear, the eccentric wheels are fixedly connected with slide shafts at an outer side, the inner wall of the shell is fixedly connected with second fixed plates at equal intervals according to the number of the eccentric wheels, the plurality of second fixed plates are slidingly connected with limiting plates at the inner sides, and the plurality of slide shafts are slidingly connected with the inner sides of the corresponding limiting plates.
[0008] As a preferred implementation form, the connecting pipe is fixedly connected with a tank at one end away from the shell, an inlet is fixedly connected at an outer side of the tank, and ammonia water guns are fixedly connected at both outer sides of the tank.
[0009] As a preferred implementation form, the bottom of the shell is fixedly connected with a first air outlet, the outer side of the shell close to the rotating rod is fixedly connected with second air outlets at equal intervals according to the number of the filter screen frames, and the plurality of second air outlets are provided with electromagnetic valves at the inner sides.
[0010] As a preferred implementation form, the bottom of the shell is fixedly connected with a base, the top of the base is fixedly connected with a steam generator at one side away from the shell, an air outlet pipe is fixedly connected at an outer side of the steam generator, and the plurality of steam inlets are fixedly connected at the outer side of the air outlet pipe.
[0011] The beneficial effects of the utility model are as follows:
[0012] The device can mix flue gas and ammonia water, and the mixture contacts with a catalyst layer after entering the shell, the catalyst layer reacts with nitrogen oxides in the ammonia water and the flue gas to form nitrogen and water, thereby effectively removing the nitrogen oxides in the flue gas, and after the denitration of the flue gas is completed, the nitrogen oxides on the catalyst layer can be adsorbed and discharged by injecting steam, thereby prolonging the service life of the catalyst layer, and before the flue gas is denitrated, the filter screen frame can filter dust in the flue gas, thereby avoiding the secondary pollution of the surrounding environment caused by the dust discharged outside the device with the flue gas, and avoiding the problem that the dust subsequently adheres to the surface of the catalyst layer to affect the adsorption effect of the catalyst layer on the nitrogen oxides, and after the steam is subsequently injected, the dust in the filter screen frame can also be adsorbed and discharged by the cleaning scraping of the cleaning scraper and the vibration of the knocking rod, thereby effectively avoiding the problem that too much dust adheres to the inside of the filter screen frame to affect the filtering effect and passability of the flue gas, and ensuring the filtering effect of the filter screen frame during long-term use. BRIEF DESCRIPTION OF DRAWINGS
[0013] The utility model will be further described in connection with the drawings.
[0014] Figure 1 It is the perspective view of the utility model;
[0015] Figure 2 is a sectional view of the utility model;
[0016] Figure 3 is a partial sectional view of the utility model;
[0017] Figure 4 is a partial sectional view of the utility model; Figure 2 is an enlarged view of A in the figure;
[0018] Figure 5 is an enlarged view of B in the figure; Figure 3
[0019] In the figure: 1, base; 2, shell; 3, tank body; 4, smoke inlet; 5, ammonia water gun; 6, connecting pipe; 7, catalyst layer; 8, filter screen frame; 9, cleaning scraper; 10, knocking rod; 11, steam inlet; 12, rotating rod; 13, motor; 14, first bevel gear; 15, first fixed plate; 16, second bevel gear; 17, mounting block; 18, third bevel gear; 19, rotating shaft; 20, fourth bevel gear; 21, eccentric wheel; 22, sliding shaft; 23, second fixed plate; 24, limiting plate; 25, first air outlet; 26, steam generator; 27, air outlet pipe; 28, second air outlet. DETAILED DESCRIPTION
[0020] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0021] Please refer to Figures 1-5 A kind of strong atomization high-efficiency ammonia water denitration device, including shell 2, the top of shell 2 is fixedly connected with connecting pipe 6, the inside of shell 2 is equidistantly provided with catalyst layer 7, the inside of shell 2 and located above catalyst layer 7 is equidistantly provided with filter screen frame 8, the top of filter screen frame 8 is equipped with cleaning scraper 9, the inside of cleaning scraper 9 and located above filter screen frame 8 is equipped with knocking rod 10, the inside of shell 2 one side and located above multiple filter screen frame 8 is equidistantly fixedly connected with steam inlet 11, transmission assembly is provided in shell 2.
[0022] Specifically, the transmission assembly comprises the motor 13 and the linkage unit. The motor 13 is fixedly connected to the outer side of the shell 2 through the mounting block 17. The output end of the motor 13 is fixedly connected with the rotating rod 12. The outer side of the rotating rod 12 is fixedly connected with the third bevel gear 18 at equal intervals. The inner wall of the shell 2 is fixedly connected with the rotating shaft 19 at equal intervals corresponding to the third bevel gear 18. One end of each of the rotating shafts 19 extends to the outside of the shell 2 and is fixedly connected with the fourth bevel gear 20. Each of the third bevel gears 18 is meshingly connected with the corresponding fourth bevel gear 20. The inner wall of the shell 2 is fixedly connected with the first fixed plate 15 at equal intervals corresponding to the cleaning scraper 9. Each of the cleaning scrapers 9 is rotationally connected to the inside of the corresponding first fixed plate 15. The outer side of each of the rotating shafts 19 in the inside of the shell 2 is fixedly connected with the first bevel gear 14. The outer side of each of the cleaning scrapers 9 is fixedly connected with the second bevel gear 16. The first bevel gear 14 is meshingly connected with the second bevel gear 16. The knocking rod 10 can reciprocate through the linkage unit. The linkage unit comprises the eccentric wheel 21. One end of each of the rotating shafts 19 away from the fourth bevel gear 20 is fixedly connected with the eccentric wheel 21. The outer side of the eccentric wheel 21 is fixedly connected with the sliding shaft 22. The inner wall of the shell 2 is fixedly connected with the second fixed plate 23 at equal intervals corresponding to the number of the eccentric wheels 21. The inside of each of the second fixed plates 23 is slidingly connected with the limiting plate 24. Each of the sliding shafts 22 is slidingly connected to the inside of the corresponding limiting plate 24.
[0023] Through the technical scheme, firstly, the external ammonia water pump is connected with the ammonia water gun 5, then the external smoke exhaust device is connected with the smoke inlet 4, ammonia water and flue gas can be injected into the inside of the connecting pipe 6 and mixed, then the ammonia water and flue gas are fully mixed and enter the inside of the shell 2, after the ammonia water and flue gas mixture enters the inside of the shell 2, firstly, the dust and impurities in the flue gas are filtered through the filter screen in the filter screen frame 8, which can prevent the dust from being discharged outside the flue gas exhaust device to cause secondary pollution to the surrounding environment, and avoid the dust from being attached to the surface of the catalyst layer 7 to affect the adsorption effect of the catalyst layer 7 on nitrogen oxides, then continue to be conveyed to the catalyst layer 7, the catalyst layer 7 reacts with nitrogen oxides in ammonia water and flue gas to form nitrogen and water, which can effectively remove nitrogen oxides in flue gas, finally, the denitrated flue gas and water can be discharged through the first gas outlet 25, when the flue gas denitrification is completed, the steam generator 26 is started, the steam generator 26 can inject steam into the inside of the shell 2 through the gas outlet pipe 27 and the steam inlet 11 to adsorb the nitrogen oxides on the catalyst layer 7, then the nitrogen oxides are discharged through the first gas outlet 25, thereby improving the service life of the catalyst layer 7, at the same time, the motor 13 is started and the electromagnetic valve in the second gas outlet 28 is opened, so that the output end of the motor 13 drives the rotating rod 12 to rotate, the rotating rod 12 drives the external plurality of third bevel gears 18 to rotate, the third bevel gears 18 drive the fourth bevel gears 20 and the rotating shaft 19 to rotate through the meshing relationship, so that the rotating shaft 19 drives the first bevel gear 14 and the eccentric wheel 21 outside to rotate, the first bevel gear 14 drives the second bevel gear 16 and the cleaning scraper 9 to rotate through the meshing relationship, so that the cleaning scraper 9 scrapes the filter screen frame 8, and the eccentric wheel 21 can drive the sliding shaft 22 on one side to slide in the inside of the limiting plate 24 during the rotation process, push the limiting plate 24 and drive the knocking rod 10 to reciprocate under the limitation of the second fixed plate 23, so that the knocking rod 10 knocks the filter screen frame 8 at high frequency, so that the filter screen frame 8 vibrates and vibrates the dust in the inside to the outside, thereby being discharged through the second gas outlet 28 together with the steam, which can effectively avoid that too much dust attached to the inside of the filter screen frame 8 affects the filtering effect and passability of the flue gas, the device can mix the flue gas and ammonia water, contact the catalyst layer 7 after entering the shell 2, the catalyst layer 7 reacts with nitrogen oxides in ammonia water and flue gas to form nitrogen and water, thereby effectively removing nitrogen oxides in flue gas, and after the flue gas denitrification is completed, the nitrogen oxides on the catalyst layer 7 can be adsorbed and discharged by injecting steam, thereby improving the service life of the catalyst layer 7, and before the flue gas is denitrified, the dust in the flue gas can be filtered through the filter screen frame 8, which avoids that the dust is discharged outside the flue gas exhaust device to cause secondary pollution to the surrounding environment, and avoids the problem that the dust is attached to the surface of the catalyst layer 7 to affect the adsorption effect of the catalyst layer 7 on nitrogen oxides,And after the subsequent injection of steam can also be combined with clean scraping and knocking bar 10 of the clean scraping and vibration filter screen frame 8 in the dust together with the adsorption of discharge, thereby effectively avoiding the problem of excessive dust attached to the inside of the filter screen frame 8 affect the filtering effect and the passage of flue gas, ensure the long-term use of the filter screen frame 8 filtering effect.
[0024] Specifically, the connecting pipe 6 is fixedly connected with the tank 3 away from the shell 2, the tank 3 is fixedly connected with the smoke inlet 4 on one side of the outside, the tank 3 is fixedly connected with the ammonia water gun 5 on both sides of the outside, the shell 2 is fixedly connected with the first gas outlet 25 on the bottom, the shell 2 is fixedly connected with the second gas outlet 28 on the side close to the rotating rod 12 of the outside corresponding to the number of filter screen frames 8, the second gas outlet 28 is installed with the electromagnetic valve in the inside, the shell 2 is fixedly connected with the base 1 on the bottom, the base 1 is fixedly connected with the steam generator 26 on the top away from the shell 2, the steam generator 26 is fixedly connected with the gas outlet pipe 27 on one side of the outside, the steam inlet 11 is fixedly connected with the gas outlet pipe 27 on the outside.
[0025] Through the above technical scheme, after the steam is completely discharged, the electromagnetic valve is closed, and the second gas outlet 28 is resealed.
[0026] In use, first connect the external ammonia pump with the ammonia gun 5, then connect the external smoke exhaust device with the smoke inlet 4, then ammonia and flue gas can be injected into the inside of the connecting pipe 6 and mixed, then the fully mixed ammonia and flue gas enters the inside of the shell 2, after the ammonia and flue gas mixture enters the inside of the shell 2, it first passes through the filter screen in the filter screen frame 8 to filter the dust and impurities in the flue gas, which can prevent dust from being discharged outside the flue gas exhaust device, causing secondary pollution to the surrounding environment, and also avoids the problem that dust is attached to the surface of the catalyst layer 7 later, affecting the adsorption effect of nitrogen oxides, then it continues to be conveyed to the catalyst layer 7, the catalyst layer 7 reacts with nitrogen oxides in ammonia and flue gas to form nitrogen and water, which can effectively remove nitrogen oxides in flue gas, and finally the denitrified flue gas and water can be discharged through the first gas outlet 25, when the flue gas denitrification is completed, start the steam generator 26, the steam generator 26 can inject steam into the inside of the shell 2 through the steam inlet 11 and the gas outlet pipe 27, thereby adsorbing nitrogen oxides on the catalyst layer 7, and then discharging through the first gas outlet 25, thereby prolonging the service life of the catalyst layer 7, at the same time, start the motor 13 and open the electromagnetic valve in the second gas outlet 28, so that the output end of the motor 13 drives the rotating rod 12 to rotate, the rotating rod 12 drives the external third bevel gears 18 to rotate, the third bevel gears 18 drive the fourth bevel gears 20 and the rotating shaft 19 to rotate through the meshing relationship, so that the rotating shaft 19 drives the first bevel gear 14 and the eccentric wheel 21 to rotate, the first bevel gear 14 drives the second bevel gear 16 and the cleaning scraper 9 to rotate through the meshing relationship, so that the cleaning scraper 9 scrapes the filter screen frame 8, and the eccentric wheel 21 can drive the sliding shaft 22 on one side to slide in the limiting plate 24 during rotation, push the limiting plate 24 and drive the knocking rod 10 to reciprocate under the limitation of the second fixed plate 23, thereby knocking the filter screen frame 8 with high frequency through the knocking rod 10, so that the filter screen frame 8 vibrates and vibrates the dust inside to the outside, thereby being discharged together with the steam through the second gas outlet 28, which can effectively avoid the problem that too much dust is attached to the inside of the filter screen frame 8, affecting the filtering effect and passability of the flue gas, the device can mix the flue gas and ammonia water, contact the catalyst layer 7 after entering the shell 2, the catalyst layer 7 reacts with nitrogen oxides in ammonia and flue gas to form nitrogen and water, thereby effectively removing nitrogen oxides in flue gas, and after the flue gas denitrification is completed, the nitrogen oxides on the catalyst layer 7 can be adsorbed and discharged by injecting steam, thereby prolonging the service life of the catalyst layer 7, and before the flue gas is denitrified, the dust in the flue gas can be filtered through the filter screen frame 8, thereby avoiding the problem that dust is attached to the surface of the catalyst layer 7 later, affecting the adsorption effect of nitrogen oxides, and after the steam is injected later, the dust in the filter screen frame 8 can also be adsorbed and discharged together with the cleaning scraper 9 and the knocking rod 10,Thus, effectively avoid the problem of excessive dust attached to the inside of the filter screen frame 8 affecting the filtering effect and passability of the flue gas, ensuring the filtering effect of the filter screen frame 8 during long-term use, and closing the electromagnetic valve after the steam is completely discharged, thereby resealing the second gas outlet 28.
[0027] The above-mentioned front, rear, left, right, top and bottom are based on the drawings of the specification Figure 1 As a standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application.
[0029] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A strong atomization high-efficiency ammonia water denitration device, comprising a shell (2), characterized in that, The top of the shell (2) is fixedly connected with a connecting pipe (6), the inside of the shell (2) is equidistantly provided with catalyst layers (7), the inside of the shell (2) and above the catalyst layers (7) is equidistantly provided with filter screen racks (8), the top of the filter screen rack (8) is provided with a cleaning scraper (9), the inner side of the cleaning scraper (9) and above the filter screen rack (8) is provided with a knocking rod (10), the inside of the shell (2) and on one side of the plurality of filter screen racks (8) and above is equidistantly fixedly connected with a steam inlet (11), and the inside of the shell (2) is provided with a transmission assembly.
2. The strong atomizing high-efficiency ammonia water denitration device according to claim 1, characterized in that, The transmission assembly comprises a motor (13) and a linkage unit, the motor (13) is fixedly connected to the outside of the shell (2) through a mounting block (17), the output end of the motor (13) is fixedly connected with a rotating rod (12), the outside of the rotating rod (12) is equidistantly fixedly connected with a third bevel gear (18), the inner wall of the shell (2) and on one side of the third bevel gear (18) is equidistantly fixedly connected with a rotating shaft (19), one end of the plurality of rotating shafts (19) extends to the outside of the shell (2) and is fixedly connected with a fourth bevel gear (20), the plurality of third bevel gears (18) are respectively meshingly connected with the corresponding fourth bevel gears (20), the inner wall of the shell (2) and corresponding the cleaning scraper (9) is equidistantly fixedly connected with a first fixed plate (15), the plurality of cleaning scrapers (9) are all rotationally connected to the inside of the corresponding first fixed plate (15), the outside of the plurality of rotating shafts (19) in the inside of the shell (2) is fixedly connected with a first bevel gear (14), the outside of the plurality of cleaning scrapers (9) and above is fixedly connected with a second bevel gear (16), the first bevel gear (14) is meshingly connected with the second bevel gear (16), and the knocking rod (10) can reciprocate through the linkage unit.
3. The strong atomizing high-efficiency ammonia water denitration device according to claim 2, characterized in that, The linkage unit comprises an eccentric wheel (21), one end of the plurality of rotating shafts (19) away from the fourth bevel gear (20) is fixedly connected with an eccentric wheel (21), the outside of the eccentric wheel (21) and on one side is fixedly connected with a sliding shaft (22), the inner wall of the shell (2) and corresponding the number of eccentric wheels (21) is equidistantly fixedly connected with a second fixed plate (23), the inside of the plurality of second fixed plates (23) is all slidingly connected with a limiting plate (24), and the plurality of sliding shafts (22) are respectively slidingly connected to the inside of the corresponding limiting plate (24).
4. The strong atomizing high-efficiency ammonia water denitration device according to claim 3, characterized in that, One end of the connecting pipe (6) away from the shell (2) is fixedly connected with a tank body (3), the outside of the tank body (3) and on one side is fixedly connected with a smoke inlet (4), and the outside of the tank body (3) and on both sides is symmetrically fixedly connected with an ammonia water gun (5).
5. The strong atomizing high-efficiency ammonia water denitration device according to claim 4, characterized in that, The bottom of the shell (2) is fixedly connected with a first air outlet (25), the outside of the shell (2) and on one side close to the rotating rod (12) is equidistantly fixedly connected with a second air outlet (28) corresponding to the number of filter screen racks (8), and the inside of the plurality of second air outlets (28) is all provided with a solenoid valve.
6. The strong atomizing high-efficiency ammonia water denitration device according to claim 1, characterized in that, The bottom of the shell (2) is fixedly connected with a base (1), the top of the base (1) is fixedly connected with a steam generator (26) away from the side of the shell (2), the outer side of the steam generator (26) is fixedly connected with an air outlet pipe (27), and a plurality of steam inlets (11) are fixedly connected to the outer side of the air outlet pipe (27).