Efficient desulfurization and denitrification device for ship tail gas

Abstract

The invention discloses an efficient desulfurization and denitrification device for ship tail gas, which is applied to the technical field of tail gas treatment, and is characterized in that the efficient desulfurization and denitrification device comprises a tail gas treatment box and a gas inlet formed in the tail gas treatment box, the inner wall of the gas inlet is connected with a filter screen along the periphery, and a cleaning assembly for cleaning the filter screen is arranged in the tail gas treatment box; the cleaning assembly comprises a servo motor installed on the inner wall of the tail gas treatment box and close to the filter screen, the output end of the servo motor is coaxially connected with a ball screw, the ball screw is in threaded connection with a lead screw nut, the lead screw nut is fixedly connected with a cleaning rod, and the back face, in the length direction, of the cleaning rod is connected with a brush abutting against the filter screen; the tail gas treatment box is provided with a denitration assembly and a desulfurization assembly which are used for conducting denitration and desulfurization treatment on tail gas. The dust collector has the technical effects that dust adsorbed on the filter screen is swept down by the brush, so that the dust filtering effect of the filter screen is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas treatment, and in particular to a high-efficiency desulfurization and denitrification device for ship tail gas. Background Art

[0002] Ships are man-made vehicles that mainly operate in geographical waters. In addition, civilian ships are generally called ships, military ships are called warships, and small ships are called boats or boats. They are generally called ships or boats. The interior mainly includes accommodation space, support structure and drainage structure, and has a propulsion system that uses external or self-contained energy. The appearance is generally a streamlined envelope that is conducive to overcoming fluid resistance. The materials are constantly updated with the advancement of science and technology. In the early days, they were natural materials such as wood, bamboo, and hemp. In modern times, they are mostly steel, aluminum, fiberglass, acrylic and various composite materials.

[0003] Desulfurization is the removal of sulfur dioxide in exhaust gas, and denitrification is mainly the removal of nitrogen oxides in exhaust gas. These two substances will form acid rain when entering the atmosphere. Acid rain is very harmful to humans, so the country has been advocating environmental protection. Exhaust gas fueled by coal contains these substances, especially thermal power plants. When building a thermal power plant, desulfurization and denitrification equipment must be built at the same time.

[0004] In the prior art, a filter is used to process dust in the exhaust gas of a ship. However, a large amount of dust will accumulate on the filter after long-term use, blocking the filter and thus affecting the dust filtering effect in the exhaust gas. Summary of the invention

[0005] The purpose of the present invention is to provide a highly efficient desulfurization and denitrification device for ship exhaust gas, which has the advantages that a brush can sweep off the dust adsorbed on the filter net, thereby improving the dust filtering effect of the filter net.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A highly efficient desulfurization and denitrification device for ship exhaust, comprising an exhaust treatment box and an air inlet opened on the exhaust treatment box, wherein a filter screen is connected to the inner wall of the air inlet along the periphery, and a cleaning component for cleaning the filter screen is provided in the exhaust treatment box; The cleaning assembly comprises a servo motor installed on the inner wall of the exhaust treatment box near the filter screen, a ball screw is coaxially connected to the output end of the servo motor, a screw nut is threadedly connected to the ball screw, a cleaning rod is fixedly connected to the screw nut, and a brush that contacts the filter screen is connected to the back side of the cleaning rod along the length direction; The tail gas treatment box is provided with a denitration component and a desulfurization component for denitration and desulfurization of the tail gas, and a stirring mechanism is provided inside the tail gas treatment box.

[0007] Through the above technical scheme, when the exhaust gas needs to be treated, the exhaust gas is desulfurized and denitrated through the denitrification component and the desulfurization component, and the filter screen filters the dust in the exhaust gas. When a large amount of dust is adsorbed on the inner surface of the filter screen, the servo motor is driven to drive the ball screw to rotate, and the ball screw drives the screw nut to slide, and then the screw nut drives the cleaning rod to move, and the cleaning rod drives the brush to move. The brush will sweep the dust adsorbed on the filter screen down, thereby improving the dust filtering effect of the filter screen.

[0008] The present invention is further configured as follows: a sliding block is connected to one end of the cleaning rod away from the screw nut, and a sliding groove for the sliding block to slide is provided on the inner side of the exhaust gas treatment box.

[0009] The present invention is further configured as follows: a slot is provided on the inner wall of the exhaust gas treatment box directly below the air inlet, and a dust collection box is connected to the slot via a plug plate.

[0010] The present invention is further configured as follows: the denitrification component includes a liquid storage tank installed on the top side of the exhaust gas treatment tank, the liquid storage tank is filled with denitrification liquid, a liquid extraction pipe is connected between the liquid storage tank and the exhaust gas treatment tank, a liquid extraction pump is fixedly connected to the liquid extraction pipe, and a nozzle is provided at one end of the liquid extraction pipe extending into the exhaust gas treatment tank.

[0011] The present invention is further configured as follows: an electric motor is installed on the top side of the exhaust gas treatment box, a rotating shaft is coaxially connected to the output end of the electric motor, and the rotating shaft is connected to the nozzle.

[0012] The present invention is further configured as follows: the desulfurization component includes a desulfurization box fixedly connected to the outside of the exhaust gas treatment box, the desulfurization box is filled with desulfurization liquid, an exhaust pipe is connected between the desulfurization box and the exhaust gas treatment box, an exhaust fan is fixedly connected to the exhaust pipe, an activated carbon adsorption layer is arranged above the desulfurization liquid in the exhaust gas treatment box, and the top side of the desulfurization box is connected to an exhaust pipe.

[0013] The present invention is further configured as follows: the stirring assembly includes a driving motor fixedly connected to the top side of the exhaust gas treatment box, a driving shaft is coaxially connected to the output end of the driving motor, a first bevel gear is provided at the end of the driving shaft, the first bevel gear is meshingly connected to the second bevel gear, a stirring rod is installed on the second bevel gear, and the stirring rod is symmetrically connected to a plurality of stirring rings along the height direction.

[0014] The present invention is further configured as follows: the inlet of the air inlet is connected to an exhaust gas deodorization box through an air inlet pipe, the exhaust gas deodorization box is connected to an air supply pipe, a rotating motor is installed on the outside of the exhaust gas deodorization box, the rotating motor is coaxially connected to a driving shaft that passes through the exhaust gas deodorization box, a rotating rod is sleeved on the driving shaft, and the rotating rod is sleeved with exhaust gas deodorization mesh plates at equal intervals along the length direction.

[0015] The present invention is further configured as follows: a limiting sleeve is connected to the end of the exhaust gas deodorization box close to the rotating rod, and a limiting rod rotatably connected to the limiting sleeve is provided at the end of the rotating rod.

[0016] The present invention is further configured as follows: grooves are provided on the top and bottom sides of the exhaust gas deodorization box, and an ultraviolet lamp is detachably connected in the groove.

[0017] To sum up, the present invention has the following beneficial effects: when the exhaust gas needs to be treated, the exhaust gas is desulfurized and denitrated through the denitrification component and the desulfurization component, and the filter screen filters the dust in the exhaust gas. When a large amount of dust is adsorbed on the inner surface of the filter screen, the servo motor is driven to drive the ball screw to rotate, and the ball screw drives the screw nut to slide, and then the screw nut drives the cleaning rod to move, and the cleaning rod drives the brush to move, and the brush sweeps the dust adsorbed on the filter screen, thereby improving the dust filtering effect of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of this embodiment; Figure 2 This embodiment is used to illustrate the internal structure of the exhaust gas treatment box; Figure 3 yes Figure 1 Enlarged view of part A in the middle; Figure 4 This is a schematic diagram for illustrating the overall connection of the cleaning components of this embodiment; Figure 5 This is a schematic diagram of the internal structure of the exhaust gas deodorization box used in this embodiment.

[0019] Figure numerals: 1, exhaust treatment box; 2, air inlet; 3, filter; 4, servo motor; 5, ball screw; 6, screw nut; 7, cleaning rod; 8, brush; 9, slider; 10, slide; 11, dust collection box; 12, plug board; 13, slot; 14, liquid storage box; 15, liquid extraction pipe; 16, liquid extraction pump; 17, nozzle; 18, motor; 19, shaft; 20, desulfurization box; 21, air extraction pipe; 22, Vacuum pump; 23. Exhaust pipe; 24. Activated carbon adsorption layer; 25. Drive motor; 26. Drive shaft; 27. First bevel gear; 28. Second bevel gear; 29. ​​Stirring rod; 30. Stirring ring; 31. Air pipe; 32. Exhaust gas deodorization box; 33. Exhaust gas deodorization mesh plate; 34. Rotating motor; 35. Rotating shaft; 36. Rotating rod; 37. Limit sleeve; 38. Limit rod; 39. Groove; 40. Ultraviolet lamp. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0021] Example: Refer to Figure 1-5 As shown, a highly efficient desulfurization and denitrification device for ship exhaust gas comprises an exhaust gas treatment box 1 and an air inlet 2 provided on the exhaust gas treatment box 1, a filter screen 3 is connected to the inner wall of the air inlet 2 along the periphery, and a cleaning component for cleaning the filter screen 3 is arranged in the exhaust gas treatment box 1; the cleaning component comprises a servo motor 4 installed on the inner wall of the exhaust gas treatment box 1 near the filter screen 3, a ball screw 5 is coaxially fixedly connected to the output end of the servo motor 4, a screw nut 6 is threadedly connected to the ball screw 5, a cleaning rod 7 is fixedly connected to the screw nut 6, and a brush 8 that conflicts with the filter screen 3 is connected to the back side of the cleaning rod 7 along the length direction; a denitrification component and a desulfurization component for denitrifying and desulfurizing the exhaust gas are arranged on the exhaust gas treatment box 1, and the exhaust gas treatment A stirring mechanism is provided in the box 1, and a denitration component includes a liquid storage tank 14 installed on the top side of the tail gas treatment box 1, and a denitration liquid is contained in the liquid storage tank 14. A liquid extraction pipe 15 is connected between the liquid storage tank 14 and the tail gas treatment box 1, and a liquid extraction pump 16 is fixedly connected to the liquid extraction pipe 15, and a nozzle 17 is sleeved on one end of the liquid extraction pipe 15 extending into the tail gas treatment box 1. The desulfurization component includes a desulfurization box 20 fixedly connected to the outside of the tail gas treatment box 1, and a desulfurization liquid is contained in the desulfurization box 20. An exhaust pipe 21 is connected between the desulfurization box 20 and the tail gas treatment box 1, and an exhaust fan 22 is fixedly connected to the exhaust pipe 21. An activated carbon adsorption layer 24 is provided above the desulfurization liquid in the tail gas treatment box 1, and an exhaust pipe 23 is connected to the top side of the desulfurization box 20; Specifically, when the tail gas needs to be treated, the tail gas is first input into the tail gas treatment box 1 through the air inlet 2, and the liquid pump 16 is driven. The liquid pump 16 pumps the denitrification liquid in the liquid storage tank 14 to the nozzle 17 through the liquid pumping pipe 15. The nozzle 17 sprays the denitrification liquid on the tail gas to denitrify the tail gas. Then, the air pump 22 is driven to pump the tail gas into the desulfurization box 20. The desulfurization liquid desulfurizes the tail gas. The activated carbon adsorption layer 24 adsorbs the odor in the tail gas. The air pipe 23 discharges the treated exhaust gas into the atmosphere, and the filter 3 filters the dust in the exhaust gas. When a large amount of dust accumulates on the inner surface of the filter 3, the servo motor 4 is driven to drive the ball screw 5 to rotate, and the ball screw 5 drives the screw nut 6 to slide, and then the screw nut 6 drives the cleaning rod 7 to move, and the cleaning rod 7 drives the brush 8 to move. The brush 8 sweeps the dust adsorbed on the filter 3 down, making the surface of the filter 3 cleaner, thereby improving the dust filtering effect of the filter 3.

[0022] Furthermore, one end of the cleaning rod 7 away from the screw nut 6 is fixedly connected to a slider 9, and a slide groove 10 for the slider 9 to slide is opened on the inner side of the exhaust gas treatment box 1. The slider 9 drives the cleaning rod 7 to slide in a directional manner along the slide groove 10, so that the cleaning rod 7 can better drive the brush 8 to clean the dust on the surface of the filter 3.

[0023] Furthermore, a slot 13 is provided on the inner wall of the exhaust treatment box 1 just below the air inlet 2, and a dust collecting box 11 is connected to the slot 13 via an insert plate 12. The dust collecting box 11 collects the fallen dust. The insert plate 12 is removed from the slot 13 to conveniently and quickly pour out the dust in the dust collecting box 11.

[0024] Furthermore, an electric motor 18 is installed on the top side of the exhaust gas treatment box 1, and a rotating shaft 19 is coaxially fixedly connected to the output end of the electric motor 18. The rotating shaft 19 is connected to the nozzle 17. The driving motor 18 drives the rotating shaft 19 to rotate, and the rotating shaft 19 drives the nozzle 17 to rotate, thereby increasing the spraying surface of the nozzle 17.

[0025] Furthermore, the stirring assembly includes a driving motor 25 fixedly connected to the top side of the exhaust gas treatment box 1, and a driving shaft 26 is coaxially connected to the output end of the driving motor 25. A first bevel gear 27 is provided at the end of the driving shaft 26. The first bevel gear 27 is meshingly connected to the second bevel gear 28. A stirring rod 29 is installed on the second bevel gear 28. The stirring rod 29 is symmetrically connected to a plurality of stirring rings 30 along the height direction. When the driving motor 25 is started, the driving motor 25 drives the driving shaft 26 to rotate, the driving shaft 26 drives the first bevel gear 27 to rotate, the first bevel gear 27 drives the stirring rod 29 to rotate, and then the stirring rod 29 drives the stirring ring 30 to rotate, so that the denitrification liquid and the exhaust gas are mixed more fully, thereby achieving better denitrification treatment.

[0026] Furthermore, the inlet of the air inlet 2 is connected to an exhaust gas deodorization box 32 through an air inlet pipe, and the exhaust gas deodorization box 32 is connected to an air supply pipe 31. A rotating motor 34 is installed on the outside of the exhaust gas deodorization box 32, and the rotating motor 34 is coaxially connected to a drive shaft 26 that passes through the exhaust gas deodorization box 32. A rotating rod 36 is sleeved on the drive shaft 26, and the rotating rod 36 is sleeved with exhaust gas deodorization mesh plates 33 at equal intervals along the length direction. The end of the exhaust gas deodorization box 32 near the rotating rod 36 is connected to a limiting sleeve 37, and the end of the rotating rod 36 is provided with a rotationally connected to the limiting sleeve The limit rod 38 in the cylinder 37 and the top and bottom sides of the exhaust gas deodorization box 32 are provided with grooves 39, and the ultraviolet lamp 40 is detachably connected to the groove 39. The exhaust gas enters the exhaust gas deodorization box through the air pipe 31, and the rotating motor 34 drives the driving shaft 26 to rotate, and then the driving shaft 26 drives the rotating rod 36 to rotate, and the rotating rod 36 drives the exhaust gas deodorization mesh plate 33 to rotate, so as to deodorize the exhaust gas, and the ultraviolet lamp 40 sterilizes and deodorizes the exhaust gas, and the treated exhaust gas enters the exhaust gas treatment box 1 through the air intake pipe for secondary treatment.

[0027] Operation steps: when it is necessary to treat the exhaust gas, first input the exhaust gas into the exhaust gas treatment box 1 through the air inlet 2, drive the liquid pump 16, the liquid pump 16 draws the denitration liquid in the liquid storage tank 14 to the nozzle 17 through the liquid pumping pipe 15, the nozzle 17 sprays the denitration liquid on the exhaust gas, and denitration treatment is performed on the exhaust gas, then drive the vacuum pump 22, the vacuum pump 22 draws the exhaust gas into the desulfurization box 20, the desulfurization liquid desulfurizes the exhaust gas, the activated carbon adsorption layer 24 absorbs the odor in the exhaust gas, the exhaust pipe 23 discharges the treated exhaust gas into the atmosphere, the filter 3 filters the dust in the exhaust gas, when a large amount of dust accumulates on the inner surface of the filter 3, drive the servo motor 4 to drive the ball screw 5 to rotate, the ball screw 5 drives the screw nut 6 to slide, and then the screw nut 6 drives the cleaning rod 7 to move, the cleaning rod 7 drives the brush 8 to move, and the brush 8 will The dust adsorbed on the filter 3 is swept down, making the surface of the filter 3 cleaner and improving the dust filtering effect of the filter 3. The drive motor 25 is started, and the drive motor 25 drives the drive shaft 26 to rotate, and the drive shaft 26 drives the first bevel gear 27 to rotate, and the first bevel gear 27 drives the stirring rod 29 to rotate, and then the stirring rod 29 drives the stirring ring 30 to rotate, so that the denitrification liquid and the exhaust gas are mixed more fully, so as to better denitrify. The exhaust gas enters the exhaust gas deodorization box through the air supply pipe 31, and the rotating motor 34 is driven to drive the drive shaft 26 to rotate, and then the drive shaft 26 drives the rotating rod 36 to rotate, and the rotating rod 36 drives the exhaust gas deodorization mesh plate 33 to rotate, and the exhaust gas is deodorized, and the ultraviolet lamp 40 sterilizes and deodorizes the exhaust gas. The treated exhaust gas enters the exhaust gas treatment box 1 through the intake pipe for secondary treatment.

[0028] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A highly efficient desulfurization and denitrification device for ship exhaust, characterized in that: The exhaust gas treatment box (1) comprises an exhaust gas treatment box (1) and an air inlet (2) provided on the exhaust gas treatment box (1); a filter screen (3) is connected to the inner wall of the air inlet (2) along the periphery; and a cleaning component for cleaning the filter screen (3) is provided in the exhaust gas treatment box (1); The cleaning assembly comprises a servo motor (4) installed on the inner wall of the exhaust gas treatment box (1) near the filter screen (3); a ball screw (5) is coaxially connected to the output end of the servo motor (4); a screw nut (6) is threadedly connected to the ball screw (5); a cleaning rod (7) is fixedly connected to the screw nut (6); and a brush (8) is connected to the back side of the cleaning rod (7) along the length direction and contacts the filter screen (3); The tail gas treatment box (1) is provided with a denitration component and a desulfurization component for denitration and desulfurization of the tail gas, and a stirring mechanism is provided inside the tail gas treatment box (1).

2. The device for efficient desulfurization and denitrification of ship exhaust gas according to claim 1, characterized in that: One end of the cleaning rod (7) away from the screw nut (6) is connected to a slider (9), and a slide groove (10) for the slider (9) to slide is provided on the inner side of the exhaust gas treatment box (1).

3. The device for efficient desulfurization and denitrification of ship exhaust gas according to claim 1, characterized in that: A slot (13) is provided on the inner wall of the exhaust gas treatment box (1) directly below the air inlet (2), and a dust collection box (11) is connected to the slot (13) via a plug plate (12).

4. The device for efficient desulfurization and denitrification of ship exhaust gas according to claim 1, characterized in that: The denitration assembly comprises a liquid storage tank (14) mounted on the top side of the exhaust gas treatment box (1), the liquid storage tank (14) containing denitration liquid, a liquid extraction pipe (15) communicating between the liquid storage tank (14) and the exhaust gas treatment box (1), a liquid extraction pump (16) being fixedly connected to the liquid extraction pipe (15), and a nozzle (17) being sleeved on one end of the liquid extraction pipe (15) extending into the exhaust gas treatment box (1).

5. The device for efficient desulfurization and denitrification of ship exhaust gas according to claim 4, characterized in that: An electric motor (18) is installed on the top side of the exhaust gas treatment box (1), and a rotating shaft (19) is coaxially connected to the output end of the electric motor (18), and the rotating shaft (19) is connected to the nozzle (17).

6. The device for efficient desulfurization and denitrification of ship exhaust gas according to claim 1, characterized in that: The desulfurization assembly comprises a desulfurization box (20) fixedly connected to the outside of an exhaust gas treatment box (1), the desulfurization box (20) contains desulfurization liquid, an exhaust pipe (21) is connected between the desulfurization box (20) and the exhaust gas treatment box (1), an exhaust fan (22) is fixedly connected to the exhaust pipe (21), an activated carbon adsorption layer (24) is arranged above the desulfurization liquid in the exhaust gas treatment box (1), and the top side of the desulfurization box (20) is connected to an exhaust pipe (23).

7. The device for efficient desulfurization and denitrification of ship exhaust gas according to claim 1, characterized in that: The stirring assembly comprises a driving motor (25) fixedly connected to the top side of the exhaust gas treatment box (1); a driving shaft (26) is coaxially connected to the output end of the driving motor (25); a first bevel gear (27) is provided at the end of the driving shaft (26); the first bevel gear (27) is meshingly connected to a second bevel gear (28); a stirring rod (29) is mounted on the second bevel gear (28); and the stirring rod (29) is symmetrically connected to a plurality of stirring rings (30) along a height direction.

8. The device for efficient desulfurization and denitrification of ship exhaust gas according to claim 1, characterized in that: The inlet of the air inlet (2) is connected to an exhaust gas deodorization box (32) through an air inlet pipe, and the exhaust gas deodorization box (32) is connected to an air supply pipe (31). A rotating motor (34) is installed on the outside of the exhaust gas deodorization box (32), and the rotating motor (34) is coaxially connected to a driving shaft (26) that passes through the exhaust gas deodorization box (32). A rotating rod (36) is sleeved on the driving shaft (26), and the rotating rod (36) is sleeved with exhaust gas deodorization mesh plates (33) at equal intervals along the length direction.

9. The device for efficient desulfurization and denitrification of ship exhaust gas according to claim 8, characterized in that: The end of the exhaust gas deodorization box (32) close to the rotating rod (36) is connected to a limiting sleeve (37), and the end of the rotating rod (36) is provided with a limiting rod (38) rotatably connected to the limiting sleeve (37).

10. The device for efficient desulfurization and denitrification of ship exhaust gas according to claim 8, characterized in that: Grooves (39) are provided on the top and bottom sides of the exhaust gas deodorization box (32), and an ultraviolet lamp (40) is detachably connected to the groove (39).

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