Denitration device

Abstract

The utility model discloses a denitration device which comprises a liquid discharge pipe and an exhaust pipe which are fixedly arranged at the bottom end and the top end of a denitration shell respectively, a cylindrical shell is rotatably connected in the denitration shell, a cylindrical cavity is formed in the cylindrical shell, a through hole is formed in the outer side of the cylindrical shell, an air inlet pipe is fixedly inserted in the left side of the denitration shell, and an air outlet pipe is fixedly inserted in the air inlet pipe. The end of the gas inlet pipe is coaxially and rotatably connected to the left end of the cylindrical shell, a first driving mechanism is fixedly installed on the right side of the denitration shell, a first filter plate and a second filter plate are arranged above and below the cylindrical shell correspondingly, and the first filter plate and the second filter plate are fixedly connected with the inner wall of the denitration shell correspondingly. An ammonia water spraying mechanism is arranged between the first filter plate and the cylindrical shell, so that flue gas sprayed out of the through holes uniformly reacts with ammonia water spraying liquid, and the first filter plate and the second filter plate temporarily shield the flue gas, so that the flue gas stays for a long time, and the flue gas reacts with ammonia water more fully.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a denitration device. Background Art

[0002] Flue gas is a mixture of gases and soot, and is the main cause of atmospheric pollution in residential areas. The composition of flue gas is very complex, and the emission of flue gas containing nitrate can cause serious environmental pollution. Denitrification equipment is usually used to treat flue gas containing nitrate. By spraying ammonia water to react with the flue gas, it is used to remove nitrogen oxides in the flue gas.

[0003] However, the existing denitrification device cannot allow the flue gas to fully contact and react with the sprayed ammonia water, and the flue gas will quickly pass through the sprayed ammonia water. The flue gas residence time is short and it cannot fully react with the sprayed ammonia water, resulting in low denitrification efficiency and poor effect. For this reason, we have proposed a denitrification device. Utility Model Content

[0004] The purpose of the utility model is to provide a denitration device to solve the technical problems in the above-mentioned prior art.

[0005] The utility model provides a denitrification device, the key point of which is that it includes a drain pipe and an exhaust pipe fixedly mounted on the bottom and top of a denitrification shell respectively, the denitrification shell is rotatably connected to a cylindrical shell with a transverse axial direction, a cylindrical cavity is formed inside the cylindrical shell, and a plurality of spaced through holes are opened on the outside of the cylindrical shell, the through holes are connected to the cylindrical cavity, an air intake pipe is fixedly plugged into the left side of the denitrification shell, the outer side of the air intake pipe end portion located inside the denitrification shell is coaxially rotatably connected to the left end of the cylindrical shell, and the air intake pipe is connected to the cylindrical cavity, a first driving mechanism for driving the cylindrical shell to rotate is fixedly mounted on the right side of the denitrification shell, a first filter plate and a second filter plate are respectively arranged above and below the cylindrical shell, the first filter plate and the second filter plate are respectively fixedly connected to the inner wall of the denitrification shell, and an ammonia spraying mechanism is arranged on the denitrification shell and between the first filter plate and the cylindrical shell.

[0006] Preferably, a connecting hole communicating with the cylindrical cavity is coaxially opened at the left end of the cylindrical shell, the right end of the air intake pipe coaxially extends into the connecting hole, and the right end of the air intake pipe is coaxially fixedly connected to a limit plate, the inner wall of the left end of the cylindrical shell is rotatably connected to the limit plate, the right end of the cylindrical shell is coaxially fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the side wall of the denitrification shell, and the first driving mechanism includes a driving motor fixedly mounted on the outside of the denitrification shell, and the output shaft of the driving motor is coaxially fixedly connected to the rotating shaft.

[0007] Preferably, the ammonia water spraying mechanism includes an inclined baffle fixedly mounted on the left inner wall of the denitrification shell, an inner cavity is formed inside the inclined baffle, and a plurality of spray holes distributed at intervals and connected to the inner cavity are opened at the bottom end of the inclined baffle, and a suction pump for sucking external ammonia water into the interior of the inclined baffle is fixedly mounted on the left outer wall of the denitrification shell.

[0008] Preferably, a rectangular shell is fixedly installed on the left side of the denitrification shell, and a plurality of spaced connecting pipes are fixedly connected to the right end of the rectangular shell. The connecting pipes pass through the side wall of the denitrification shell and are connected to the inner cavity of the inclined baffle. The left end of the rectangular shell is fixedly connected to a delivery pipe, the suction end of the suction pump is connected to the suction pipe, and the delivery end of the suction pump is connected to the delivery pipe.

[0009] Preferably, the bottom end of the first filter plate and the top end of the second filter plate are respectively abutted with scrapers, and the upper and lower sides of the right end surface of the denitrification housing are respectively fixedly connected with second driving mechanisms for driving the scrapers to move laterally.

[0010] Preferably, the second driving mechanism includes an electric telescopic rod fixedly mounted on the denitrification housing, the telescopic end of the electric telescopic rod movably passes through the side wall of the denitrification housing and is fixedly connected to the middle of the scraper.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] By conveying the flue gas into the air inlet pipe, the flue gas is conveyed into the cylindrical cavity of the cylindrical shell through the air inlet pipe and discharged through the through hole, and at the same time the first driving mechanism and the ammonia spraying mechanism are started, the first driving mechanism drives the cylindrical shell to rotate, and the ammonia spraying mechanism sprays ammonia spray liquid, so that the flue gas sprayed from the through hole reacts evenly with the ammonia spray liquid, so that the flue gas and the ammonia are fully contacted and reacted, and by arranging the first filter plate and the second filter plate to temporarily block the flue gas, the flue gas stays for a long time, and the flue gas reacts more fully with the ammonia, thereby achieving high denitrification efficiency and good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is the overall structure diagram of the utility model;

[0015] Figure 2This is a cross-sectional view of the utility model;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a structural diagram of the connection between the water pump and the inclined baffle of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the connection between the drive motor and the cylindrical housing of the utility model;

[0019] Figure 6 This is a schematic structural diagram of the connection between the electric telescopic rod, the scraper and the second filter plate of the utility model.

[0020] Reference numerals:

[0021] 1. Denitrification shell; 2. Drain pipe; 3. Exhaust pipe; 4. Cylindrical shell; 5. Cylindrical cavity; 6. Through hole; 7. Inlet pipe; 8. First filter plate; 9. Second filter plate; 10. Limit plate; 11. Rotating shaft; 12. Drive motor; 13. Inclined deflector; 14. Inner cavity; 15. Spray hole; 16. Suction pump; 17. Rectangular shell; 18. Connecting pipe; 19. Delivery pipe; 20. Suction pipe; 21. Scraper; 22. Electric telescopic rod. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0024] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] The following combination Figures 1 to 6 As shown, the embodiment of the present invention provides a denitration device, including a drain pipe 2 and an exhaust pipe 3 fixedly mounted at the bottom and top ends of a denitration shell 1, respectively; a cylindrical shell 4 with a horizontal axis is rotatably connected inside the denitration shell 1, a cylindrical cavity 5 is formed inside the cylindrical shell 4, a plurality of through holes 6 are opened on the outside of the cylindrical shell 4, and the through holes 6 are communicated with the cylindrical cavity 5; an air inlet pipe 7 is fixedly plugged into the left side of the denitration shell 1, and the outer side of the end of the air inlet pipe 7 located inside the denitration shell 1 is coaxially rotatably connected to the left end of the cylindrical shell 4, and the air inlet pipe 7 is communicated with the cylindrical cavity 5; a first driving mechanism is fixedly mounted on the right side of the denitration shell 1, and the first driving mechanism is used to drive the cylindrical shell 4 to rotate; a first filter plate 8 and a second filter plate 9 are respectively provided above and below the cylindrical shell 4, and the first filter plate 8 and the second filter plate 9 are respectively fixedly connected to the inner wall of the denitration shell 1; an ammonia spraying mechanism is provided on the denitration shell 1 and between the first filter plate 8 and the cylindrical shell 4;

[0028] In this embodiment, the flue gas is transported into the air inlet pipe 7, and the flue gas is transported into the cylindrical cavity 5 of the cylindrical shell 4 through the air inlet pipe 7 and discharged through the through hole 6. At the same time, the first driving mechanism and the ammonia spraying mechanism are started. The first driving mechanism drives the cylindrical shell 4 to rotate, and the ammonia spraying mechanism sprays ammonia spray liquid, so that the flue gas sprayed from the through hole 6 reacts evenly with the ammonia spray liquid, so that the flue gas and the ammonia are fully contacted and reacted. In addition, the first filter plate 8 and the second filter plate 9 are provided to temporarily block the flue gas, so that the flue gas stays for a long time and the flue gas reacts more fully with the ammonia, thereby achieving high denitrification efficiency and good effect.

[0029] Specifically: a connecting hole is coaxially opened at the left end of the cylindrical shell 4, and the connecting hole is communicated with the cylindrical cavity 5. The right end of the air inlet pipe 7 extends coaxially into the connecting hole. The right end of the air inlet pipe 7 is coaxially fixedly connected to the limiting plate 10. The inner wall of the left end of the cylindrical shell 4 is rotatably connected to the limiting plate 10. The right end of the cylindrical shell 4 is coaxially fixedly connected with a rotating shaft 11, and the rotating shaft 11 is rotatably connected to the side wall of the denitrification shell 1. The first driving mechanism includes a driving motor 12 fixedly mounted on the outside of the denitrification shell 1, and the output shaft of the driving motor 12 is coaxially fixedly connected to the rotating shaft 11. In this embodiment, the flue gas is transported to the air inlet pipe 7 and into the cylindrical cavity 5 of the cylindrical shell 4, and then discharged through the through hole 6, and the rotating shaft 11 is driven to rotate by starting the driving motor 12, thereby driving the cylindrical shell 4 to rotate.

[0030] like Figure 2-3 As shown: the ammonia spraying mechanism of this embodiment includes an inclined baffle 13 fixedly mounted on the left inner wall of the denitrification shell 1, an inner cavity 14 is formed inside the inclined baffle 13, and a plurality of spray holes 15 distributed at intervals are provided at the bottom end of the inclined baffle 13, and the spray holes 15 are connected to the inner cavity 14. A suction pump 16 is fixedly mounted on the left outer wall of the denitrification shell 1, and the suction pump 16 is used to suck the external ammonia water into the inclined baffle 13. In this embodiment, the external ammonia water is sucked into the inner cavity 14 of the inclined baffle 13 by the suction pump 16, and sprayed out through the spray holes 15. By setting the inclined baffle 13, the flue gas discharged from the through hole can be blocked, so that the flue gas stays longer, so that the ammonia water reacts more fully with the flue gas.

[0031] like Figure 3 、 4As shown: a rectangular shell 17 is fixedly installed on the left side of the denitrification shell 1, and a plurality of spaced connecting pipes 18 are fixedly connected to the right end of the rectangular shell 17. The connecting pipes 18 pass through the side wall of the denitrification shell 1 and are connected to the inner cavity 14 of the inclined baffle 13. The left end of the rectangular shell 17 is fixedly connected to a delivery pipe 19, the suction end of the suction pump 16 is connected to the suction pipe 20, and the delivery end of the suction pump 16 is connected to the delivery pipe 19; specifically, in this embodiment, the suction pump 16 is started, ammonia water is sucked through the suction pipe 20, and is delivered to the rectangular shell 17 through the delivery pipe 19, and then delivered to the inner cavity 14 of the inclined baffle 13 through the connecting pipe 18.

[0032] Specifically: the bottom end of the first filter plate 8 and the top end of the second filter plate 9 are respectively abutted against the scraper 21, and the upper and lower sides of the right end surface of the denitrification shell 1 are respectively fixedly connected with a second driving mechanism for driving the scraper 21 to move horizontally. The second driving mechanism includes an electric telescopic rod 22 fixedly installed on the denitrification shell 1, and the telescopic end of the electric telescopic rod 22 moves through the side wall of the denitrification shell 1 and is fixedly connected to the middle part of the scraper 21. In this embodiment, the scraper 21 is driven to move horizontally by starting the electric telescopic rod 22, so that the scraper 21 can scrape off the dirt adhered to the bottom end of the first filter plate 8 and the top end of the second filter plate 9.

[0033] The first filter plate 8 and the second filter plate 9 have the function of filtering impurities in the smoke and also have the function of prolonging the residence time of the smoke between the first filter plate 8 and the second filter plate 9.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A denitration device, characterized in that: The vent pipe is connected to the denitrification casing through a hole in the outer wall of the casing and a first filter plate is provided on the inner wall of the casing to prevent the denitrification casing from rotating.

2. A denitration device according to claim 1, characterized in that: The left end of the cylindrical shell is coaxially provided with a connecting hole connected to the cylindrical cavity, the right end of the air intake pipe is coaxially extended into the connecting hole, and the right end of the air intake pipe is coaxially fixedly connected to the limit plate, the inner wall of the left end of the cylindrical shell is rotatably connected to the limit plate, the right end of the cylindrical shell is coaxially fixedly connected with a rotating shaft, and the rotating shaft is rotatably connected to the side wall of the denitrification shell, and the first driving mechanism includes a driving motor fixedly installed on the outside of the denitrification shell, and the output shaft of the driving motor is coaxially fixedly connected to the rotating shaft.

3. A denitration device according to claim 1, characterized in that: The ammonia water spraying mechanism includes an inclined baffle fixedly mounted on the left inner wall of the denitrification shell, an inner cavity is formed inside the inclined baffle, and a plurality of spray holes distributed at intervals and connected to the inner cavity are opened at the bottom end of the inclined baffle. A suction pump for sucking external ammonia water into the interior of the inclined baffle is fixedly mounted on the left outer wall of the denitrification shell.

4. A denitration device according to claim 3, characterized in that: A rectangular shell is fixedly installed on the left side of the denitrification shell, and a plurality of spaced connecting pipes are fixedly connected to the right end of the rectangular shell. The connecting pipes pass through the side wall of the denitrification shell and are connected to the inner cavity of the inclined baffle. A delivery pipe is fixedly connected to the left end of the rectangular shell, and the suction end of the suction pump is connected to the suction pipe, and the delivery end of the suction pump is connected to the delivery pipe.

5. A denitration device according to claim 1, characterized in that: The bottom end of the first filter plate and the top end of the second filter plate are respectively abutted with scrapers, and the upper and lower sides of the right end surface of the denitrification housing are respectively fixedly connected with second driving mechanisms for driving the scrapers to move laterally.

6. A denitration device according to claim 5, characterized in that: The second driving mechanism includes an electric telescopic rod fixedly mounted on the denitrification housing, wherein the telescopic end of the electric telescopic rod movably passes through the side wall of the denitrification housing and is fixedly connected to the middle portion of the scraper.

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