Kiln desulfurization and denitrification absorption tower

Abstract

The desulfurization and denitrification absorption tower comprises a tower body, an air inlet pipeline, a speed brake, a draft fan and a filter screen, the lower portion of the right side wall of the tower body communicates with the air inlet pipeline, the top end of the tower body communicates with an air outlet pipeline, a first partition plate is fixedly installed at the bottom of the inner side of the tower body, and a flow guide plate is fixedly installed in the center of the right side wall of the tower body; bearing nets are detachably mounted below the left side wall and the right side wall of the first partition plate, a water storage bin is formed in the position, below the bearing plate on the left side of the first partition plate, of the inner bottom of the tower body, and the bottom of the water storage bin communicates with a drainage pipe; speed reducing plates are fixedly connected to the upper part of the right side wall of the first partition plate and the inner right side wall of the tower body; according to the device, the speed reducing plate and the two layers of partition plates are arranged for reducing the speed of the waste gas, and the exhaust fan is arranged for reflowing the waste gas, so that the speed is further reduced, the spray nozzle can spray the waste gas more uniformly, and desulfurization and denitrification are more thorough.

Description

Technical Field

[0001] The present application relates to the technical field of kiln desulfurization and denitrification, and specifically to a kiln desulfurization and denitrification absorption tower. Background Art

[0002] Sulfur oxides and nitrogen oxides in factory exhaust are the main sources of environmental problems such as acid rain and photochemical smog. After chemical reactions, these compounds will cause serious pollution to the atmospheric environment and destroy the ecological balance. Desulfurization and denitrification technology can effectively remove these harmful substances and significantly reduce their negative impact on the environment. The existing treatment method is usually to use a desulfurization and denitrification absorption tower.

[0003] Application No. 202121914167.0 discloses a kiln desulfurization and denitrification absorption tower, including a denitrification tower, a filtering device, a desulfurization tower and a filter screen, etc. A filtering device is installed between the denitrification tower and the desulfurization tower, and two groups of filter screens are installed in the filtering device to filter particulate and granular impurities in the flue gas to achieve the best filtering effect, and a rotatable brush plate is installed in each group of filter screens, so that the filtered particulate impurities slide with the brush to the ash receiving port below, and a movable door is installed below the ash receiving port, and the movable door regularly discharges the accumulated particles and impurities. The device can filter out particles and impurities of different specifications, and at the same time sweep down the particulate impurities on the filter screen, thereby avoiding the backflow of flue gas caused by the long-term blockage of the filter screen. At the same time, there is no need to stop the machine for manual dust cleaning, which reduces the workload and labor intensity of the staff, extends the service life of the filtering device and the equipment in the desulfurization tower, improves work efficiency, and reduces production costs.

[0004] However, in use, there are the following defects:

[0005] Although a filter device is used to filter out particles and impurities of different sizes, and a brush can be used to clean them, reducing the blockage of the filter and avoiding the backflow of flue gas, the filter cannot slow down the flue gas. When the flue gas in the kiln is directly passed into the absorption tower, the flue gas will generally rise faster. The excessive speed causes the nozzle to not spray the flue gas thoroughly enough, which has a certain impact on the desulfurization and denitrification effects of the flue gas. Utility Model Content

[0006] The purpose of the present application is to provide a kiln desulfurization and denitrification absorption tower, which solves the problem proposed in the background technology that although a filtering device is used to filter out particles and impurities of different specifications, a brush can be used to clean them, thereby reducing the blockage of the filter screen and avoiding the backflow of flue gas. However, since the filter screen cannot slow down the flue gas, when the flue gas in the kiln is directly passed into the absorption tower, the flue gas will generally rise faster. The excessively fast speed causes the nozzle to not spray the flue gas thoroughly enough, thereby causing a certain impact on the effect of flue gas desulfurization and denitrification.

[0007] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a kiln desulfurization and denitrification absorption tower, comprising a tower body, an air inlet duct, a speed reducer, an exhaust fan and a filter screen, the lower right side wall of the tower body is connected to an air inlet duct, the top of the tower body is connected to an air outlet duct, a No. 1 partition is fixedly installed on the inner bottom of the tower body, a guide plate is fixedly installed on the center of the right side wall of the tower body, a No. 2 partition is fixedly installed on the left edge of the bottom of the guide plate, supporting nets are detachably installed under the left and right side walls of the No. 1 partition, and a water storage bin is opened at the inner bottom of the tower body below the left supporting plate of the No. 1 partition, the bottom of the water storage bin is connected to a drain pipe, and a speed reducer is fixedly connected to the upper right side wall of the No. 1 partition and the inner right side wall of the tower body.

[0008] In this technical solution, the exhaust gas enters the tower body through the air inlet pipe. When it reaches the filter, the liquid inlet pipe is connected to the absorption liquid pool, and then the absorption liquid is sprayed out through a number of nozzles to spray the exhaust gas, thereby performing desulfurization and denitrification absorption treatment, and finally passes through the filter and is discharged from the exhaust pipe. At the same time, a partition, a second partition and a deceleration plate can decelerate the exhaust gas entering at a high altitude. After the exhaust gas enters the tower body, it is blocked by the No. 1 partition, and then it is stopped by the inclined deceleration plate during the rising process, thereby decelerating, and then bypassing the No. 1 partition and the No. 2 partition to reach the filter. The No. 1 partition and the No. 2 partition increase the movement path of the exhaust gas. The exhaust gas can be sprayed more evenly with the absorption liquid by the speed reducer, thereby improving the desulfurization and denitrification efficiency. At the same time, the exhaust gas speed can be further reduced by driving the motor, transmission rod, exhaust fan and reflux duct. The exhaust gas reaches the bottom of the guide plate after being decelerated by the speed reducer. At this time, the driving motor starts after power supply, driving the exhaust fan to rotate. The exhaust fan draws air to the right, directing the exhaust gas into the reflux duct, and then returns to the bottom of the No. 1 partition and passes through the path of the speed reducer, so that it can be further decelerated by the speed reducer and can be sprayed more evenly with the absorption liquid, thereby improving the desulfurization and denitrification efficiency of the device.

[0009] As an optional solution of the technical solution of the present application, a return pipe is opened and connected to the right side wall of the box below the guide plate, and the other end of the return pipe is fixedly connected and connected to the side wall of the tower body below the speed reducer.

[0010] As an optional solution of the technical solution of the present application, a transmission rod is fixedly connected to the right side of the bottom of the guide plate, and an exhaust fan is movably installed under the right side wall of the transmission rod, and the exhaust fan is opposite to the upper end opening of the return duct.

[0011] As an optional solution of the technical solution of the present application, a driving motor is embedded and installed on the inner side of the guide plate above the transmission rod, and the rear end of the transmission shaft of the driving motor is fixedly connected to the exhaust fan.

[0012] As an optional solution of the technical solution of the present application, a liquid inlet pipe is passed through the upper left wall of the tower body, the right end of the liquid inlet pipe is fixedly connected to the inner right wall of the tower body, and nozzles are evenly arranged on the surface of the liquid inlet pipe located on the inner side of the tower body.

[0013] As an optional solution of the technical solution of the present application, filter screens are detachably installed on the inner wall of the tower body on the upper and lower sides of the liquid inlet pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This application is finally discharged from the exhaust pipe after passing through the filter. At the same time, a partition, a second partition and a speed reducer can slow down the exhaust gas entering at a high altitude. After the exhaust gas enters the tower body, it is blocked by the No. 1 partition, and then it is blocked by the inclined speed reducer during the rising process, thereby slowing down, and then bypassing the No. 1 and No. 2 partitions to reach the filter. The No. 1 and No. 2 partitions increase the movement path of the exhaust gas, and cooperate with the speed reducer to block it, thereby reducing the speed, and it can be sprayed with the absorption liquid more evenly, thereby improving the efficiency of desulfurization and denitrification.

[0016] 2. The present application can further reduce the speed of the exhaust gas through the driving motor, transmission rod, exhaust fan and reflux duct. The exhaust gas reaches the bottom of the guide plate after being decelerated by the speed reducer. At this time, the driving motor starts after power is supplied, driving the exhaust fan to rotate. The exhaust fan draws air to the right, directing the exhaust gas into the reflux duct, and then returns to the bottom of the No. 1 partition, and then passes through the path of the speed reducer, so that it can be further decelerated by the speed reducer and can be sprayed with the absorption liquid more evenly, thereby improving the desulfurization and denitrification efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 This is an overall view of a kiln desulfurization and denitrification absorption tower for this application;

[0019] Figure 2This is a schematic diagram of the inner structure of a kiln desulfurization and denitrification absorption tower in this application;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of a kiln desulfurization and denitrification absorption tower for the present application.

[0021] In the figure: 1. tower body; 2. air inlet duct; 3. air outlet duct; 4. drainage pipe; 401. water storage tank; 5. supporting net; 6. No. 1 partition; 7. No. 2 partition; 8. speed reducer; 9. return duct; 10. driving motor; 11. transmission rod; 12. exhaust fan; 13. liquid inlet pipe; 14. nozzle; 15. filter net; 16. guide plate. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, they are further explained below in conjunction with specific implementation methods.

[0023] like Figure 1 As shown, a kiln desulfurization and denitrification absorption tower includes a tower body 1, an air inlet pipe 2, a speed reducer 8, an exhaust fan 12 and a filter 15. The lower right side wall of the tower body 1 is connected to the air inlet pipe 2, and the top of the tower body 1 is connected to the air outlet pipe 3.

[0024] like Figure 2 As shown, a supporting net 5 is detachably installed under the left and right side walls of the No. 1 partition 6, and a water storage tank 401 is opened at the bottom of the tower body 1 below the left supporting plate of the No. 1 partition 6. The bottom of the water storage tank 401 is connected to a drain pipe 4, and a speed reducer 8 is fixedly connected to the top of the right side wall of the No. 1 partition 6 and the inner right side wall of the tower body 1. The speed reducer 8 is inclined so as to block the exhaust gas and slow it down when passing through.

[0025] like Figure 2 As shown, a return pipe 9 is opened on the right side wall of the box below the guide plate 16 and is connected to the return pipe 9. The other end of the return pipe 9 is fixedly connected and connected to the side wall of the tower body 1 below the speed reduction plate 8. The guide plate 16 can facilitate the downward flow of the absorption liquid, and the return pipe 9 can guide the exhaust gas back to the bottom of the speed reduction plate 8 for deceleration again.

[0026] like Figure 2 As shown, a liquid inlet pipe 13 passes through the upper left side wall of the tower body 1, and the right end of the liquid inlet pipe 13 is fixedly connected to the inner right side wall of the tower body 1. Nozzles 14 are evenly provided on the surface of the liquid inlet pipe 13 located on the inner side of the tower body 1. Filter screens 15 are detachably installed on the inner walls of the tower body 1 on the upper and lower sides of the liquid inlet pipe 13. The filter screen 15 can intercept particulate impurities and the like, and the nozzles 14 on the side walls of the liquid inlet pipe 13 can spray absorption liquid in all directions.

[0027] like Figure 2 and Figure 3 As shown, a No. 1 partition 6 is fixedly installed on the inner bottom of the tower body 1, a guide plate 16 is fixedly installed in the center of the right side wall of the tower body 1, and a No. 2 partition 7 is fixedly installed on the bottom left edge of the guide plate 16. The combination of No. 1 partition 6 and No. 2 partition 7 can increase the moving path of the exhaust gas and slow down the exhaust gas during movement.

[0028] like Figure 3 As shown, a transmission rod 11 is fixedly connected to the right side of the bottom of the guide plate 16, and an exhaust fan 12 is movably installed under the right side wall of the transmission rod 11. The exhaust fan 12 is directly opposite to the upper end opening of the return duct 9. A drive motor 10 is embedded and installed on the inner side of the guide plate 16 above the transmission rod 11. The rear end of the drive shaft of the drive motor 10 is fixedly connected to the exhaust fan 12. The exhaust fan 12 draws air to the right, thereby drawing the exhaust gas into the return duct 9.

[0029] In actual use, the exhaust gas enters the tower body 1 through the air intake pipe 2. When it reaches the filter 15, the liquid inlet pipe 13 is connected to the absorption liquid pool, and then the absorption liquid is sprayed out through a number of nozzles 14 to spray the exhaust gas, thereby performing desulfurization and denitrification absorption treatment, and finally passes through the filter 15 and is discharged from the exhaust pipe 3. At the same time, a partition, a second partition 7 and a deceleration plate 8 can decelerate the exhaust gas entering at a high altitude. After the exhaust gas enters the tower body 1, it is blocked by the first partition 6, and then it is stopped by the inclined deceleration plate 8 during the rising process, thereby decelerating, and then bypassing the first partition 6 and the second partition 7 to reach the filter 15. The first partition 6 and the second partition 7 increase the movement path of the exhaust gas. The exhaust gas is blown away by the exhaust fan 12, and the exhaust gas is blown away by the exhaust fan 12. ..., and the exhaust gas is blown away by the exhaust fan 12, and the exhaust gas is blown away by the exhaust fan 12, and the exhaust gas is blown away by the exhaust fan 12, and the exhaust gas is blown away by the exhaust fan 12, and the exhaust gas is blown away by the exhaust fan

Claims

1. A furnace desulfurization and denitrification absorption tower, comprising a tower body (1), an air intake pipe (2), a deceleration plate (8), an exhaust fan (12) and a filter screen (15), characterized in that: An air inlet pipe (2) is connected to the bottom of the right side wall of the tower body (1), an air outlet pipe (3) is connected to the top of the tower body (1), a first partition (6) is fixedly installed on the inner bottom of the tower body (1), a guide plate (16) is fixedly installed in the center of the right side wall of the tower body (1), a second partition (7) is fixedly installed on the left edge of the bottom of the guide plate (16), a supporting net (5) is detachably installed below the left and right side walls of the first partition (6), a water storage tank (401) is opened at the bottom of the tower body (1) below the left supporting plate of the first partition (6), a drainage pipe (4) is connected to the bottom of the water storage tank (401), and a deceleration plate (8) is fixedly connected to the top of the right side wall of the first partition (6) and the inner right side wall of the tower body (1).

2. A furnace desulfurization and denitrification absorption tower according to claim 1, characterized in that: A return pipe (9) is provided on the right side wall of the box below the guide plate (16) and is in communication with the return pipe (9), and the other end of the return pipe (9) is fixedly connected to and in communication with the side wall of the tower body (1) below the deceleration plate (8).

3. A furnace desulfurization and denitrification absorption tower according to claim 1, characterized in that: A transmission rod (11) is fixedly connected to the right side of the bottom of the guide plate (16), and an exhaust fan (12) is movably installed below the right side wall of the transmission rod (11), and the exhaust fan (12) is directly opposite to the upper end opening of the return pipe (9).

4. A furnace desulfurization and denitrification absorption tower according to claim 3, characterized in that: A driving motor (10) is embedded and installed on the inner side of the guide plate (16) above the driving rod (11), and the rear end of the driving shaft of the driving motor (10) is fixedly connected to the exhaust fan (12).

5. The kiln desulfurization and denitrification absorption tower according to claim 1, characterized in that: A liquid inlet pipe (13) passes through the upper left side wall of the tower body (1), the right end of the liquid inlet pipe (13) is fixedly connected to the inner right side wall of the tower body (1), and nozzles (14) are evenly arranged on the surface of the liquid inlet pipe (13) located on the inner side of the tower body (1).

6. A furnace desulfurization and denitrification absorption tower according to claim 5, characterized in that: Filter screens (15) are detachably mounted on the inner walls of the tower body (1) at the upper and lower sides of the liquid inlet pipe (13).

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