Automatic material distribution device for denitration equipment

Abstract

The utility model relates to the technical field of automatic distribution devices, in particular to an automatic material distribution device for denitration equipment, which comprises a treatment box, a filter screen plate is fixedly mounted at the lower part in the treatment box, and an air inlet pipe is fixedly mounted at the lower part of one side of the treatment box in a penetrating manner. According to the automatic material distribution device for the denitration equipment, a treatment box, a recovery pipe, a filter screen plate, a supporting plate, a storage tank, a pump body, an adding pipe, a collecting pipe, a motor, a first bevel gear, a second bevel gear, a movable pipe, an exhaust pipe, a uniform distribution pipe, a spray head, a conical box body, a through hole, a gas inlet pipe, a NOx concentration sensor and a flue gas flow sensor are matched for use; in the whole denitration process, through the arrangement of a plurality of storage tanks, the device can be used for preparing various denitration agents, and the NOx concentration sensor and the flue gas flow sensor are used for monitoring the concentration of nitric oxide and the flue gas flow of flue gas entering the device in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic distribution devices, in particular to an automatic distribution device for materials used in denitration equipment. Background Art

[0002] Flue gas is one of the main emissions from thermal power plants. It is produced by the combustion of combustibles in the burner. Since flue gas usually contains a large amount of nitrogen oxides NOx such as NO, these nitrogen oxides will cause highly corrosive acid rain if they are directly discharged into the atmosphere. Therefore, the flue gas must be denitrified before discharge.

[0003] The Chinese patent with publication number CN219376648U discloses a flue gas denitrification device, which includes a treatment box, an air outlet pipe is fixedly connected to the outside of the treatment box, and a filter plate is fixedly connected to the inside of the treatment box. The flue gas denitrification device extends the air inlet pipe to the inside of the connecting tube, and a plurality of air outlet grooves are opened on the outside of the connecting tube. The servo motor is started to rotate the rotating rod. When the rotating rod rotates, it drives the plurality of fixedly connected exhaust plates to rotate, and the flue gas is discharged from the connecting tube through the exhaust plates, so that the flue gas can be evenly filled in the treatment box, thereby improving the flue gas treatment efficiency.

[0004] With regard to the above-mentioned related technologies, the device has some shortcomings. In actual use, it does not have the function of automatically distributing and adding the control agent (such as ammonia water or urea water), so that the denitrification process is usually based on set fixed parameters or the experience of the operator. However, this method may lead to insufficient or excessive use of agents, affect the denitrification efficiency, increase operating costs, and may cause negative impacts on the environment. Therefore, it is necessary to provide a denitrification equipment material automatic distribution device to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic material distribution device for denitration equipment to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An automatic material distribution device for denitration equipment, comprising:

[0008] A treatment box, wherein a filter screen plate is fixedly installed at the lower part of the interior of the treatment box, an air intake pipe is fixedly installed and inserted at the lower part of one side of the treatment box, and one end of the air intake pipe passes through the bottom of the filter screen plate and extends to the top of the top of the filter screen plate, a recovery pipe is fixedly installed and inserted at the lower part of the other side of the treatment box, a support plate is fixedly installed at the other side of the treatment box, and a plurality of storage tanks are fixedly installed on the top of the support plate, a movable pipe is rotatably installed on the top of the treatment box, and the bottom end of the movable pipe passes through the top of the treatment box and extends to the interior of the treatment box;

[0009] An equalizing pipe is fixedly installed at the bottom end of the movable pipe, and a plurality of nozzles are fixedly installed on the lower side of the outer wall of the equalizing pipe. The movable pipe is rotatably connected to a collecting pipe through a sealing rotating joint installed at the top end thereof. A fixing frame is fixedly installed on the collecting pipe, and the fixing frame is fixedly connected to the top of the processing box. An addition pipe is fixedly inserted and installed on the top of the storage tank, and the top end of the addition pipe is fixedly connected to the collecting pipe. The storage tank is connected to the inside of the collecting pipe through the addition pipe.

[0010] A pump body is arranged on the outer wall of the adding pipe, and the pump body is fixedly connected to the top of the storage tank. A driving mechanism is arranged on the top of the processing box on one side of the movable tube. An exhaust pipe is fixedly installed on one side of the top of the processing box. A flue gas flow sensor and a NOx concentration sensor are fixedly installed inside the port at one end of the intake pipe.

[0011] Preferably, symmetrically distributed stabilizing rods are fixedly mounted on the upper side of the outer wall of the equalizing pipe, a sliding block is fixedly mounted on the top of the stabilizing rod, a slideway is provided on the top of the inner wall of the processing box, and the slideway is slidably connected to the sliding block.

[0012] Preferably, the slider is T-shaped, and the slider is adapted to the slideway. A plurality of balls are movably mounted on the top and bottom of the protrusions on both sides of the slider, and the balls are in rolling contact with the inner wall of the slideway.

[0013] Preferably, a conical box is fixedly mounted on the top of the filter screen plate, a plurality of through holes are opened on the outer surface of the conical box, and one end of the air inlet pipe passes through the bottom of the conical box and is connected with the interior of the conical box.

[0014] Preferably, the driving mechanism includes a motor, and the motor is fixedly mounted on the top of the processing box on one side of the movable tube, a first bevel gear is fixedly mounted on the driving end of the motor, a second bevel gear is fixedly mounted on the outer wall of the top end of the movable tube, and the second bevel gear is meshed with the first bevel gear.

[0015] Preferably, a sealed inspection door is provided on the front of the processing box.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model uses a processing box, a recovery pipe, a filter plate, a support plate, a storage tank, a pump body, an addition pipe, a collecting pipe, a motor, a first bevel gear, a second bevel gear, a movable pipe, an exhaust pipe, an averaging pipe, a nozzle, a conical box body, a through hole, an intake pipe, a NOx concentration sensor and a flue gas flow sensor in coordination. During the entire denitration process, the device can be equipped with a variety of denitrifiers through the provision of multiple storage tanks, and the NOx concentration sensor and the flue gas flow sensor can be used to monitor the nitrogen oxide concentration and flue gas flow of the flue gas entering the device in real time. The external main controller will control the pump body on the corresponding storage tank to work. The main controller can accurately control the type and flow of the denitrifier to ensure that an appropriate amount of denitrifier is added to the flue gas at all times, thereby realizing automatic distribution of the denitrifier, improving denitration efficiency, reducing operating costs, and ensuring effective treatment and conversion of harmful substances in the flue gas.

[0018] 2. The utility model uses a stabilizing rod, a ball, a slideway and a slider to provide a limiting support for the rotating equal-distribution pipe, thereby improving the stability of the equal-distribution pipe during operation. In addition, when the slider slides on the slideway, it drives the ball to produce rolling contact with the inner wall of the slideway, thereby reducing the friction between the slider and the slideway, improving the efficiency of the motor, and reducing the wear of the slider, thereby increasing the service life of the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model.

[0020] Figure 2 It is a front view structural schematic diagram of the utility model.

[0021] Figure 3 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0022] Figure 4 For the utility model Figure 1 Enlarged structural diagram at B in the middle.

[0023] In the figure: 1. treatment box; 2. recovery pipe; 3. filter screen; 4. support plate; 5. storage tank; 6. pump body; 7. addition pipe; 8. collecting pipe; 9. fixing frame; 10. motor; 11. first bevel gear; 12. second bevel gear; 13. movable pipe; 14. exhaust pipe; 15. equalizing pipe; 16. stabilizer bar; 17. nozzle; 18. conical box; 19. through hole; 20. intake pipe; 21. NOx concentration sensor; 22. flue gas flow sensor; 23. ball bearing; 24. slideway; 25. slider. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4 , an embodiment provided by the utility model:

[0029] An automatic material distribution device for denitration equipment, comprising:

[0030] A treatment box 1, a filter screen plate 3 is fixedly installed at the lower part of the treatment box 1, an air intake pipe 20 is fixedly installed and inserted at the lower part of one side of the treatment box 1, and one end of the air intake pipe 20 passes through the bottom of the filter screen plate 3 and extends to the top of the filter screen plate 3, a recovery pipe 2 is fixedly installed and inserted at the lower part of the other side of the treatment box 1, a support plate 4 is fixedly installed at the other side of the treatment box 1, and a plurality of storage tanks 5 are fixedly installed on the top of the support plate 4, a movable pipe 13 is rotatably installed on the top of the treatment box 1, and the bottom end of the movable pipe 13 passes through the top of the treatment box 1 and extends to the inside of the treatment box 1;

[0031] The bottom end of the movable tube 13 is fixedly installed with an equalizing tube 15, and a plurality of nozzles 17 are fixedly installed on the lower side of the outer wall of the equalizing tube 15. The movable tube 13 is rotatably connected to a collecting tube 8 through a sealed rotating joint installed at the top thereof. A fixing frame 9 is fixedly installed on the collecting tube 8, and the fixing frame 9 is fixedly connected to the top of the processing box 1. An addition tube 7 is fixedly inserted and installed on the top of the storage tank 5, and the top end of the addition tube 7 is fixedly connected to the collecting tube 8. The storage tank 5 is connected to the inside of the collecting tube 8 through the addition tube 7.

[0032] A pump body 6 is provided on the outer wall of the addition pipe 7, and the pump body 6 is fixedly connected to the top of the storage tank 5. A driving mechanism is provided on the top of the processing box 1 on one side of the movable pipe 13. An exhaust pipe 14 is fixedly installed on one side of the top of the processing box 1, and a flue gas flow sensor 22 and a NOx concentration sensor 21 are fixedly installed inside the port at one end of the intake pipe 20.

[0033] A symmetrically distributed stabilizing rod 16 is fixedly mounted on the upper side of the outer wall of the equalizing pipe 15 , a slider 25 is fixedly mounted on the top of the stabilizing rod 16 , a slideway 24 is provided on the top of the inner wall of the processing box 1 , and the slideway 24 is slidably connected to the slider 25 .

[0034] In one embodiment, the slider 25 is T-shaped and matched with the slideway 24 . A plurality of balls 23 are movably mounted on the top and bottom of the protrusions on both sides of the slider 25 , and the balls 23 are in rolling contact with the inner wall of the slideway 24 .

[0035] In one of the preferred embodiments, a conical box body 18 is fixedly installed on the top of the filter screen plate 3, and a plurality of through holes 19 are opened on the outer surface of the conical box body 18. One end of the air inlet pipe 20 passes through the bottom of the conical box body 18 and is connected with the interior of the conical box body 18, so that the flue gas can be evenly filled in the interior of the treatment box 1, thereby improving the flue gas treatment efficiency.

[0036] In one embodiment, the driving mechanism includes a motor 10, and the motor 10 is fixedly installed on the top of the processing box 1 on one side of the movable tube 13. The driving end of the motor 10 is fixedly installed with a first bevel gear 11, and the outer wall of the top end of the movable tube 13 is fixedly installed with a second bevel gear 12, and the second bevel gear 12 is meshed with the first bevel gear 11, thereby realizing the rotation effect of the averaging tube 15, so that the denitrification agent sprayed through the nozzle 17 is more uniform, achieving sufficient contact reaction with the flue gas.

[0037] In one of the preferred embodiments, a sealed inspection door is provided on the front of the processing box 1 to facilitate inspection and maintenance of the mechanical structure inside the processing box 1 .

[0038] The working principle of the utility model is as follows: the electrical components appearing in the article are all connected to the external main controller and the 220V mains electricity, and the main controller can be a conventional known device for control such as a computer. The specific structures of the NOx concentration sensor 21 and the flue gas flow sensor 22 can refer to the prior art, which can be easily implemented by those skilled in the art. When the device is in use, a plurality of storage tanks 5 are installed on the top of the support plate 4, and different denitrification agents can be stored in different storage tanks 5 for standby use. Subsequently, the flue gas to be treated is discharged into the interior of the conical box 18 through the air inlet pipe 20. The flue gas is guided by the conical box 18, which can The flue gas is discharged more evenly into the interior of the treatment box 1. When the flue gas passes through the interior of the intake pipe 20, the NOx concentration sensor 21 and the flue gas flow sensor 22 located inside the intake pipe 20 will monitor the concentration of nitrogen oxides and the flow of flue gas in real time. The monitored signal will be transmitted to the external main controller, which will analyze the signal and issue corresponding instructions to control the corresponding number of pump bodies 6 to start. The start of the pump body 6 will extract the denitrification agent in the storage tank 5 through the addition pipe 7 and collect it into the inside of the collection pipe 8. The denitrification agent will be input into the inside of the movable pipe 13 through the collection pipe 8. Under the guidance of the movable pipe 13, the denitrification agent enters The inside of the averaging tube 15 is finally sprayed to the inside of the treatment box 1 through the nozzle 17. At the same time, the control motor 10 starts to work, and the driving end of the motor 10 drives the first bevel gear 11 to rotate. Through the meshing of the first bevel gear 11 and the second bevel gear 12, the second bevel gear 12 drives the movable tube 13 to rotate. The rotation of the movable tube 13 drives the averaging tube 15 to rotate. The nozzle 17 rotates with the averaging tube 15, so that the denitrification agent sprayed by the nozzle 17 is more evenly sprayed to the inside of the treatment box 1, and fully contacts with the flue gas entering the inside of the treatment box 1. The flue gas after denitration will finally pass through the exhaust pipe 14. The flue gas is discharged to complete the denitrification process. During the whole denitrification process, the device can prepare a variety of denitrification agents through the setting of multiple storage tanks 5, and monitor the nitrogen oxide concentration and flue gas flow rate of the flue gas entering the device in real time through the NOx concentration sensor 21 and the flue gas flow sensor 22. The external main controller will control the pump body 6 on the corresponding storage tank 5 to work. The main controller can accurately control the type and flow of the denitrification agent to ensure that an appropriate amount of denitrification agent is added to the flue gas at all times, thereby realizing the automatic distribution of the denitrification agent, improving the denitrification efficiency, reducing the operating cost, and ensuring the effective treatment and conversion of harmful substances in the flue gas.

[0039] During the process of disengaging, the rotation of the equalizing tube 15 drives the stabilizing rod 16 to rotate, and the movement of the stabilizing rod 16 drives the slider 25 to slide on the slide 24, which has the effect of limiting the support of the rotating equalizing tube 15, thereby improving the stability of the equalizing tube 15 during operation. In addition, when the slider 25 slides on the slide 24, it will drive the ball 23 to produce rolling contact with the inner wall of the slide 24, thereby reducing the friction between the slider 25 and the slide 24, improving the efficiency of the motor 10, and at the same time reducing the wear of the slider 25 and increasing the service life of the slider 25.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic material distribution device for denitrification equipment, characterized in that: It includes: A treatment box (1), wherein a filter screen plate (3) is fixedly installed at the lower part of the treatment box (1), an air intake pipe (20) is fixedly installed and inserted at the lower part of one side of the treatment box (1), and one end of the air intake pipe (20) passes through the bottom of the filter screen plate (3) and extends to the top of the filter screen plate (3), a recovery pipe (2) is fixedly installed and inserted at the lower part of the other side of the treatment box (1), a support plate (4) is fixedly installed at the other side of the treatment box (1), and a plurality of storage tanks (5) are fixedly installed on the top of the support plate (4), and a movable pipe (13) is rotatably installed at the top of the treatment box (1), and the bottom end of the movable pipe (13) passes through the top of the treatment box (1) and extends to the inside of the treatment box (1); An equalizing pipe (15) is fixedly installed at the bottom end of the movable pipe (13), and a plurality of nozzles (17) are fixedly installed on the lower side of the outer wall of the equalizing pipe (15). The movable pipe (13) is rotatably connected to a collecting pipe (8) via a sealed rotatable joint installed at the top end thereof. A fixing frame (9) is fixedly installed on the collecting pipe (8), and the fixing frame (9) is fixedly connected to the top of the processing box (1). An addition pipe (7) is fixedly inserted and installed on the top of the storage tank (5), and the top end of the addition pipe (7) is fixedly connected to the collecting pipe (8). The storage tank (5) is connected to the inside of the collecting pipe (8) via the addition pipe (7); A pump body (6) is provided on the outer wall of the addition pipe (7), and the pump body (6) is fixedly connected to the top of the storage tank (5); a driving mechanism is provided on the top of the treatment box (1) and located on one side of the movable pipe (13); an exhaust pipe (14) is fixedly installed and inserted on one side of the top of the treatment box (1); and a flue gas flow sensor (22) and a NOx concentration sensor (21) are fixedly installed inside a port at one end of the intake pipe (20).

2. The automatic material distribution device for denitration equipment according to claim 1 is characterized in that: A symmetrically distributed stabilizing rod (16) is fixedly mounted on the upper side of the outer wall of the equalizing tube (15), a sliding block (25) is fixedly mounted on the top of the stabilizing rod (16), a slideway (24) is provided on the top of the inner wall of the processing box (1), and the slideway (24) is slidably connected to the sliding block (25).

3. The automatic material distribution device for denitration equipment according to claim 2 is characterized in that: The shape of the slider (25) is T-shaped, and the slider (25) is adapted to the slideway (24). A plurality of balls (23) are movably mounted on the top and bottom of the protrusions on both sides of the slider (25), and the balls (23) are in rolling contact with the inner wall of the slideway (24).

4. The automatic material distribution device for denitration equipment according to claim 1 is characterized in that: A conical box (18) is fixedly mounted on the top of the filter screen plate (3), a plurality of through holes (19) are provided on the outer surface of the conical box (18), and one end of the air inlet pipe (20) passes through the bottom of the conical box (18) and is connected to the interior of the conical box (18).

5. The automatic material distribution device for denitration equipment according to claim 1 is characterized in that: The driving mechanism comprises a motor (10), and the motor (10) is fixedly mounted on the top of the processing box (1) and located on one side of the movable tube (13); a first bevel gear (11) is fixedly mounted on the driving end of the motor (10); a second bevel gear (12) is fixedly mounted on the outer wall of the top end of the movable tube (13), and the second bevel gear (12) is meshed with the first bevel gear (11).

6. The automatic material distribution device for denitration equipment according to claim 1 is characterized in that: The front of the processing box (1) is provided with a sealed inspection door.

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