Flue gas denitration treatment equipment

Abstract

The utility model discloses flue gas denitration treatment equipment, which comprises a flue gas discharge pipe and a crushing box arranged right above the flue gas discharge pipe, when the flue gas denitration treatment equipment is used, a driving motor is started to work through an external power supply, and the driving motor drives a rotating shaft to rotate and drives two grinding rollers to rotate; a grinding roller can grind and crush solid denitration materials at the top of a partition plate in the rotating process, and the denitration materials can be stirred and crushed through rotation of a plurality of crushing rods, so that the crushed denitration materials can be guided onto a permeable plate through a material receiving hopper, a discharging pipe and a material homogenizing pipe, and the discharging pipe is driven to rotate through a transmission rod; and the discharging pipe rotates to drive the two material homogenizing pipes to rotate, so that the crushed denitration material can be uniformly laid on the permeable plate under the arrangement of the plurality of discharging holes, the contact range of the flue gas and the denitration material is enlarged, and the flue gas denitration completion degree is ensured.

Description

Technical Field

[0001] This utility model relates to the field of flue gas denitrification technology, and in particular to a flue gas denitrification treatment device. Background Technology

[0002] Flue gas is one of the main emissions from thermal power plants. It is produced by the combustion of combustibles in boilers. Since flue gas usually contains a large amount of nitrogen oxides, these nitrogen oxides can cause highly corrosive acid rain if they are directly released into the atmosphere. Therefore, flue gas must be denitrified before it is released.

[0003] However, in existing technologies, when denitrification equipment treats industrial flue gas, the flue gas containing nitrates comes into direct contact with the surface of the solid denitrification material. Because the solid denitrification material has a certain volume, the contact between the flue gas containing nitrates and the solid denitrification material is not sufficient, thus affecting the completion of flue gas denitrification. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide a flue gas denitrification treatment device.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] A flue gas denitrification treatment device includes a flue gas exhaust pipe and a pulverizing box positioned directly above the flue gas exhaust pipe. Three load-bearing rods are fixedly connected to the bottom edge of the pulverizing box, arranged in a triangular array with the bottom of the pulverizing box as the center. The other ends of the three load-bearing rods are fixedly connected to the inner wall of the flue gas exhaust pipe. A feed pipe is inserted and fixedly connected to the top of the pulverizing box near the left side. A circular hole is opened at the center of the bottom of the pulverizing box, and a discharge pipe is rotatably connected to the inner cavity of the circular hole. The bottom end of the discharge pipe extends into the inner cavity of the flue gas exhaust pipe. A permeable plate is fixedly connected to the inner cavity of the flue gas exhaust pipe, and springs are fixedly connected to the bottom of the permeable plate near both the left and right sides. Two fixing plates are fixedly connected to the bottom ends of the springs, and the fixing plates are fixedly connected to the inner wall of the flue gas exhaust pipe. Two springs are inserted and fixedly connected to the bottom end of the inner cavity of the discharge pipe. The material distribution pipe has several discharge holes evenly distributed at its bottom. A limit ring is fitted and fixed to the outer wall of the material distribution pipe near its top, and the bottom of the limit ring is fitted against the bottom of the inner cavity of the crushing box. A solenoid valve is installed on the discharge pipe. A partition is fixedly connected to the middle position of the inner cavity of the crushing box, and several discharge holes are evenly distributed on the partition. A vibration mechanism is installed at the bottom of the partition. A bearing is fixedly connected to the middle position of the top of the crushing box, and a mounting plate is fixedly connected to the top of the crushing box. A slot is opened in the middle position of the mounting plate. A drive motor is fixedly installed on the top of the mounting plate, and the power output end of the drive motor extends into the inner cavity of the slot and is fixedly connected to a rotating shaft. The bottom end of the rotating shaft passes through the inner cavity of the bearing, extends into the inner cavity of the crushing box, and is fixedly connected to two grinding rollers, which are arranged left and right.

[0007] Furthermore, a receiving hopper is fixedly connected to the inner cavity of the crushing box near the bottom, and the bottom of the receiving hopper is aligned with the top of the inner cavity of the discharge pipe.

[0008] Furthermore, a transmission rod is fixedly connected to the bottom end of the rotating shaft, and the bottom end of the transmission rod passes through the adjacent feeding hole and the receiving hopper, extends to the inner cavity of the discharge pipe, and is fixedly connected to a connecting plate. The left and right sides of the connecting plate are respectively fixedly connected to the left and right sides of the inner cavity of the discharge pipe.

[0009] Furthermore, the vibration mechanism includes a connecting rod, which is fixedly connected to the outside of the transmission rod. A rotating ball is fixedly connected to the other end of the connecting rod. Grooves are provided on both the left and right sides of the inner cavity of the crushing box, and lifting plates are inserted into the inner cavities of the grooves. Square holes are provided on both lifting plates, and matching square rods are passed through the inner cavities of the square holes. The upper and lower ends of the two square rods are fixedly connected to the top and bottom of the inner cavities of the adjacent grooves, respectively. Lifting balls are fixedly connected to adjacent sides of the two lifting plates, and the bottom of the lifting ball on the left side is fitted against the top of the rotating ball.

[0010] Furthermore, a plurality of crushing rods are fixedly connected to the outer wall of the rotating shaft, and the plurality of crushing rods are arranged in an alternating manner.

[0011] Furthermore, L-shaped plates are attached to adjacent sides of the two fixed plates, and the top of the L-shaped plates is fixedly connected to the bottom of the breathable plate. Sliding grooves are provided on the opposite sides of the two L-shaped plates, and sliders are slidably connected to the inner cavity of the sliding grooves. The two sliders are respectively fixedly connected to the adjacent fixed plates.

[0012] Furthermore, a pressure sensor is fixedly installed at the bottom of the fixing plate on the left side, and the bottom of the pressure sensor is fitted into the L-shaped plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The drive motor is started by an external power supply. The drive motor drives the rotating shaft to rotate, which in turn drives the two grinding rollers to rotate. During the rotation of the grinding rollers, the solid denitrification material on the top of the partition can be ground and crushed. The rotation of several crushing rods can stir and crush the denitrification material, which helps to improve the uniformity and efficiency of the crushing of the denitrification material. The rotating shaft drives the transmission rod to rotate, and the rotation of the transmission rod drives the rotating ball to rotate through the connecting rod. During the rotation of the rotating ball, it can intermittently push the lifting balls on both sides to rise and fall, which can knock and vibrate the partition, which helps to accelerate the feeding rate of the denitrification material from the feeding hole. The crushed denitrification material can be guided into the permeable plate through the receiving hopper, the discharge pipe and the equalization pipe. The transmission rod drives the discharge pipe to rotate, and the rotation of the discharge pipe drives the two equalization pipes to rotate. With the setting of several discharge holes, the crushed denitrification material can be evenly spread on the permeable plate, increasing the contact range between the flue gas and the denitrification material, thereby ensuring the completion of flue gas denitrification.

[0015] 2. Through the arrangement of springs, fixed plates, L-shaped plates, sliders, chutes, and pressure sensors, when there is a large amount of denitrification material remaining on the upper surface of the permeable plate, gravity can push the L-shaped plate downwards to overcome the resistance of the spring, reducing the pressure exerted by the L-shaped plate on the pressure sensor. This allows the signal to be transmitted to the controller, which then automatically closes the solenoid valve. Conversely, when there is less denitrification material on the upper surface of the permeable plate, the spring's rebound force can push the permeable plate upwards, causing the L-shaped plate to move upwards as well. The upward movement of the L-shaped plate applies pressure to the pressure sensor, transmitting the signal to the controller. This allows the controller to automatically open the solenoid valve, allowing the denitrification material in the pulverizing chamber to be introduced into the flue gas exhaust pipe through the discharge pipe. This effectively prevents excessive accumulation of denitrification material on the permeable plate, which could affect normal flue gas emissions, while also ensuring the completeness of flue gas denitrification.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a perspective view of this embodiment;

[0018] Figure 2 This is a three-dimensional structural diagram of the component crushing box in this embodiment;

[0019] Figure 3 This is a three-dimensional structural diagram of the flue gas exhaust pipe component in this embodiment;

[0020] Figure 4 This is a front sectional view of this embodiment;

[0021] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle.

[0022] In the diagram: 1. Flue gas exhaust pipe; 2. Supporting rod; 3. Crushing box; 4. Feed pipe; 5. Discharge pipe; 6. Solenoid valve; 7. Distribution pipe; 8. Ventilation plate; 9. Spring; 10. Fixing plate; 11. Partition plate; 12. Discharge hole; 13. Drive motor; 14. Rotating shaft; 15. Grinding roller; 16. Crushing rod; 17. Limiting ring; 18. Receiving hopper; 19. Transmission rod; 20. Connecting rod; 21. Rotating ball; 22. Lifting ball; 23. Lifting plate; 24. Square rod; 25. Pressure sensor; 26. L-shaped plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please see Figures 1 to 5 The present invention provides the following technical solution:

[0027] Example 1:

[0028] A flue gas denitrification treatment device includes a flue gas exhaust pipe 1 and a pulverizing box 3 positioned directly above the flue gas exhaust pipe 1. Three load-bearing rods 2 are fixedly connected to the bottom of the pulverizing box 3 near its edge, arranged in a triangular array with the bottom of the pulverizing box 3 as the center. The other ends of the three load-bearing rods 2 are fixedly connected to the inner wall of the flue gas exhaust pipe 1. A feed pipe 4 is inserted and fixedly connected to the top of the pulverizing box 3 near its left side. A circular hole is opened at the center of the bottom of the pulverizing box 3, and a discharge pipe 5 is rotatably connected to the inner cavity of the circular hole. The bottom end of the discharge pipe 5 extends into the inner cavity of the flue gas exhaust pipe 1. A receiving hopper 18 is fixedly connected to the inner cavity of the pulverizing box 3 near its bottom. The bottom of the receiving hopper 18 is aligned with the top of the inner cavity of the discharge pipe 5, allowing the crushed denitrification material to be introduced into the discharge pipe 5. A permeable plate 8 is fixedly connected to the inner cavity of the flue gas exhaust pipe 1, and springs 9 are fixedly connected to the bottom of the permeable plate 8 near both sides. A fixing plate 10 is fixedly connected to the bottom of each spring 9, and the fixing plate 10 is fixedly connected to the inner wall of the flue gas exhaust pipe 1. Two equalizing pipes 7 are inserted and fixedly connected to the bottom of the inner cavity of the discharge pipe 5, and several discharge holes are evenly distributed at the bottom of the equalizing pipe 7. A limiting ring 17 is sleeved and fixedly fixed to the outer wall of the equalizing pipe 7 near the top, and the bottom of the limiting ring 17 is flush with the bottom of the inner cavity of the crushing box 3. The system includes a solenoid valve 6 installed on the discharge pipe 5; a partition 11 fixedly connected to the middle of the inner cavity of the crushing box 3, with several evenly spaced discharge holes 12 on the partition 11; a vibration mechanism at the bottom of the partition 11; a bearing fixedly connected to the middle of the top of the crushing box 3; a mounting plate fixedly connected to the top of the crushing box 3; a slotted section at the middle of the mounting plate; a drive motor 13 fixedly mounted on the top of the mounting plate; the power output end of the drive motor 13 extending into the inner cavity of the slotted section; a rotating shaft 14 fixedly connected to the top of the rotating shaft 14; and two grinding rollers 15 fixedly connected to the bottom end of the rotating shaft 14, which penetrates the inner cavity of the bearing and extends into the inner cavity of the crushing box 3. The two grinding rollers 15 are arranged left and right, and several crushing rods 16 are fixedly connected to the outer wall of the rotating shaft 14. The crushing rods 16 are arranged in an alternating manner, which is conducive to improving the uniformity and efficiency of crushing solid denitrification materials. A transmission rod 19 is fixedly connected to the bottom end of the rotating shaft 14. The bottom end of the transmission rod 19 passes through the adjacent feeding hole 12 and the receiving hopper 18, extends to the inner cavity of the discharge pipe 5, and is fixedly connected to a connecting plate. The left and right sides of the connecting plate are fixedly connected to the left and right sides of the inner cavity of the discharge pipe 5, respectively. By driving the discharge pipe 5 to rotate, the two uniform pipes will be driven to rotate, thereby improving the uniformity of the denitrification material on the permeable plate 8.

[0029] The vibration mechanism includes a connecting rod 20, which is fixedly connected to the outside of the transmission rod 19. The other end of the connecting rod 20 is fixedly connected to a rotating ball 21. The inner cavity of the crushing box 3 has grooves on both the left and right sides, and a lifting plate 23 is inserted into the inner cavity of the groove. The two lifting plates 23 have square holes, and a matching square rod 24 is inserted through the inner cavity of the square hole. The upper and lower ends of the two square rods 24 are fixedly connected to the top and bottom of the inner cavity of the adjacent groove, respectively. A lifting ball 22 is fixedly connected to the adjacent side of the two lifting plates 23. The bottom of the lifting ball 22 on the left side is fitted with the top of the rotating ball 21.

[0030] Working Principle: In use, the solid denitrification material is first poured into the inner cavity of the crushing box 3 through the feed pipe 4. Then, the drive motor 13 is started by an external power supply. The drive motor 13 drives the rotating shaft 14 to rotate, which in turn drives several crushing rods 16 to rotate, thus crushing the solid denitrification material. Next, two grinding rollers 15 rotate on top of the partition plate 11, further grinding and crushing the solid denitrification material, thereby improving the thoroughness of crushing. The crushed denitrification material then falls from several discharge holes 12 into the inner cavity of the receiving hopper 18. The rotating shaft 14 drives the transmission rod 19 to rotate, and the transmission rod 19... The rotation is driven by the connecting rod 20 to rotate the rotating ball 21. The rotation of the rotating ball 21 can push the lifting balls 22 on both sides to move up and down repeatedly, and drive the lifting balls 22 to knock and vibrate the partition plate 11, thereby accelerating the discharge rate of the denitrification material and quickly guiding the denitrification material into the discharge pipe 5. From the discharge pipe 5, the denitrification material is then guided into the two equalizing pipes 7 and dispersed onto the permeable plate 8 through several discharge holes. The rotation of the rotating shaft 14 can drive the transmission rod 19 to rotate, and the rotation of the transmission rod 19 can drive the discharge pipe 5 to rotate. The rotation of the discharge pipe 5 can drive the two equalizing pipes 7 to rotate synchronously, thereby further improving the uniformity of the denitrification material laying and increasing the contact range between the flue gas and the denitrification material, thus ensuring the integrity of flue gas denitrification.

[0031] Example 2:

[0032] Two fixed plates 10 are fitted with L-shaped plates 26 on adjacent sides, and the top of the L-shaped plates 26 is fixedly connected to the bottom of the ventilated plate 8. The two L-shaped plates 26 are provided with sliding grooves on opposite sides, and sliders are slidably connected to the inner cavity of the sliding grooves. The two sliders are fixedly connected to the adjacent fixed plates 10 respectively. A pressure sensor 25 is fixedly installed at the bottom of the fixed plate 10 on the left side, and the bottom of the pressure sensor 25 is fitted with the L-shaped plate 26.

[0033] Working principle: When this utility model is in use, if there is a lot of denitrification material remaining on the upper surface of the vent plate 8, it can push the L-shaped plate 26 downward under the action of gravity to overcome the resistance of the spring 9 and reduce the squeezing force of the L-shaped plate 26 on the pressure sensor 25. This allows the signal to be transmitted to the controller, which will automatically close the solenoid valve 6. When there is less denitrification material on the upper surface of the vent plate 8, it can push the vent plate 8 upward under the action of the spring 9, which will also drive the L-shaped plate 26 upward. The upward movement of the L-shaped plate 26 can apply squeezing force to the pressure sensor 25, which can transmit the signal to the controller. This allows the solenoid valve 6 to be automatically opened, allowing the denitrification material in the inner cavity of the crushing box 3 to be introduced into the flue gas exhaust pipe 1 through the discharge pipe 5. This effectively avoids excessive accumulation of denitrification material on the vent plate 8, which would affect the normal emission of flue gas, while also ensuring the integrity of flue gas denitrification.

[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A flue gas denitrification treatment device, comprising a flue gas exhaust pipe (1) and a pulverizing box (3) disposed directly above the flue gas exhaust pipe (1), characterized in that: Three load-bearing rods (2) are fixedly connected to the bottom of the crushing box (3) near the edge, and the three load-bearing rods (2) are arranged in a triangular array with the bottom of the crushing box (3) as the center. The other end of each of the three load-bearing rods (2) is fixedly connected to the inner wall of the flue gas exhaust pipe (1). A feed pipe (4) is inserted and fixed to the top of the crushing box (3) near the left side. A round hole is opened at the middle of the bottom of the crushing box (3). A discharge pipe (5) is rotatably connected to the inner cavity of the round hole. (5) extends to the inner cavity of the flue gas exhaust pipe (1). The inner cavity of the flue gas exhaust pipe (1) is fitted with a permeable plate (8), and springs (9) are fixedly connected to the bottom of the permeable plate (8) near the left and right sides. The bottom ends of the two springs (9) are fixedly connected to a fixing plate (10), and the fixing plate (10) is fixedly connected to the inner wall of the flue gas exhaust pipe (1). Two equalizing pipes (7) are inserted and fixedly connected to the bottom of the inner cavity of the discharge pipe (5), and the bottom of the equalizing pipes (7) is evenly provided with several A discharge hole is provided. A limiting ring (17) is fixedly fitted on the outer wall of the material distribution pipe (7) near the top. The bottom of the limiting ring (17) is fitted to the bottom of the inner cavity of the crushing box (3). A solenoid valve (6) is provided on the discharge pipe (5). A partition plate (11) is fixedly connected in the middle of the inner cavity of the crushing box (3). Several discharge holes (12) are evenly opened on the partition plate (11). A vibration mechanism is provided at the bottom of the partition plate (11). The top middle of the crushing box (3) is... A bearing is fixedly connected to the top of the crushing box (3), and a mounting plate is fixedly connected to the top of the crushing box (3). A slot is opened in the middle of the mounting plate. A drive motor (13) is fixedly installed on the top of the mounting plate. The power output end of the drive motor (13) extends into the inner cavity of the slot and is fixedly connected to a rotating shaft (14). The bottom end of the rotating shaft (14) passes through the inner cavity of the bearing and extends into the inner cavity of the crushing box (3). Two grinding rollers (15) are fixedly connected to the shaft, and the two grinding rollers (15) are arranged left and right.

2. The flue gas denitrification treatment equipment as described in claim 1, characterized in that: The inner cavity of the crushing box (3) is fixedly connected to a receiving hopper (18) near the bottom, and the bottom of the receiving hopper (18) is aligned with the top of the inner cavity of the discharge pipe (5).

3. The flue gas denitrification treatment equipment as described in claim 2, characterized in that: The bottom end of the rotating shaft (14) is fixedly connected to a transmission rod (19), and the bottom end of the transmission rod (19) passes through the adjacent feeding hole (12) and the receiving hopper (18), extends to the inner cavity of the discharge pipe (5), and is fixedly connected to a connecting plate. The left and right sides of the connecting plate are respectively fixedly connected to the left and right sides of the inner cavity of the discharge pipe (5).

4. The flue gas denitrification treatment equipment as described in claim 3, characterized in that: The vibration mechanism includes a connecting rod (20), which is fixedly connected to the outside of the transmission rod (19). The other end of the connecting rod (20) is fixedly connected to a rotating ball (21). The inner cavity of the crushing box (3) has grooves on both the left and right sides, and a lifting plate (23) is inserted into the inner cavity of the groove. The two lifting plates (23) have square holes, and a matching square rod (24) is inserted through the inner cavity of the square hole. The upper and lower ends of the two square rods (24) are fixedly connected to the top and bottom of the inner cavity of the adjacent groove, respectively. The two lifting plates (23) are fixedly connected to a lifting ball (22) on the adjacent side. The bottom of the lifting ball (22) on the left side is fitted with the top of the rotating ball (21).

5. The flue gas denitrification treatment equipment as described in claim 1, characterized in that: A plurality of crushing rods (16) are fixedly connected to the outer wall of the rotating shaft (14), and the plurality of crushing rods (16) are arranged in an alternating manner.

6. The flue gas denitrification treatment equipment as described in claim 1, characterized in that: Both of the two fixed plates (10) are fitted with L-shaped plates (26) on adjacent sides, and the top of the L-shaped plates (26) is fixedly connected to the bottom of the breathable plate (8). The two L-shaped plates (26) are provided with sliding grooves on opposite sides, and the sliding grooves are slidably connected with sliders. The two sliders are fixedly connected to the adjacent fixed plates (10) respectively.

7. The flue gas denitrification treatment equipment as described in claim 6, characterized in that: A pressure sensor (25) is fixedly installed at the bottom of the fixed plate (10) on the left side, and the bottom of the pressure sensor (25) is fitted with the L-shaped plate (26).

Images