A denitration treatment device for coking crude benzene hydrogenation process waste gas incineration flue gas

Abstract

The application discloses a kind of coking crude benzene hydrogenation process waste gas flue gas denitration processing device, including denitration cylinder and arc cover, the denitration cylinder side wall is equipped with three placing grooves, two sides of three The placing groove is equipped with clamping groove, the inside of the denitration cylinder is fixedly installed with three arc-shaped support plate, the inside of the denitration cylinder is fixedly installed with fixed cylinder.Through the flue gas that is passed into by smoke pipe will be discharged into the inside of denitration cylinder by smoke diffuser, when flue gas rises, first pass through bag cover and be filtered, the large particle in the inside of flue gas is filtered, large particle will adhere to the inside of bag cover, after motor starts, the output end of motor can drive rotating rod to rotate, to drive driving gear to rotate, to drive driven gear to rotate, simultaneously sliding ball can slide in the inside of sliding groove, when driven gear rotates, can drive scraper to rotate, to scrape bag cover, to shake off the large particle on the inside of bag cover.

Description

Technical Field

[0001] This invention belongs to the field of flue gas denitrification technology, specifically relating to a denitrification treatment device for the waste gas incineration of coking crude benzene hydrogenation process. Background Technology

[0002] Flue gas is a mixture of gases and particulate matter, and it is a major cause of atmospheric pollution in residential areas. The composition of flue gas is very complex. The gases include water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, and nitrogen oxides, while the particulate matter includes fuel ash, coal particles, oil droplets, and high-temperature pyrolysis products. As society's environmental requirements become increasingly stringent, equipment capable of treating flue gas has emerged. Flue gas treatment equipment effectively treats the toxic and harmful substances contained in flue gas to below the specified concentration.

[0003] In the gas treatment process, the inability to remove dust particles from the gas results in insufficient denitrification. On the other hand, the short time the gas spends in the denitrification tower leads to incomplete gas reaction, low work efficiency, and poor results. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a denitrification treatment device for the incineration flue gas of coking crude benzene hydrogenation process. This device solves the problems of insufficient denitrification due to the inability to remove particulate matter from the gas during the gas treatment process, and the short gas time in the denitrification tower, resulting in insufficient gas reaction, low working efficiency, and poor effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a denitrification treatment device for flue gas from the coking crude benzene hydrogenation process, comprising a denitrification cylinder and an arc-shaped cover. The denitrification cylinder has three placement slots on its side wall, and each of the three placement slots has a retaining groove on both sides. Three arc-shaped support plates are fixedly installed inside the denitrification cylinder. A fixing cylinder is fixedly installed inside the denitrification cylinder, and a waterproof and breathable membrane bladder A is fixedly installed inside the fixing cylinder. A smoke guide pipe is fixedly installed on the side wall of the denitrification cylinder. A smoke hood is connected to one end of the denitrification cylinder. A scraper is fixedly installed at the bottom of the smoke hood. A driven tooth is rotatably installed at the bottom of the inner cavity of the denitrification cylinder. A driving tooth is rotatably installed at the bottom of the inner cavity of the denitrification cylinder. A rotating rod is fixedly installed at the top of the driving tooth. A scraper is fixedly installed at the top of the rotating rod. A motor is fixedly installed at the top of the rotating rod. A fixing ring is fixedly installed on the inner side of the arc-shaped cover. A waterproof and breathable membrane bladder B is provided inside the fixing ring. Locking blocks are fixedly installed on both sides of the arc-shaped cover.

[0006] Preferably, the dimensions of the arc-shaped cap are adapted to the dimensions of the placement groove, and the outer side of the arc-shaped cap is provided with sealing rubber.

[0007] The advantages of the above technical solution are that the arc-shaped cover can be sealed and installed inside the placement groove, thereby installing the waterproof and breathable membrane bag B inside the denitrification cylinder. The installation is convenient and fast. The NO inside the flue gas reacts with the oxidant O3, ClO2 or KMnO4 inside the waterproof and breathable membrane bag B to generate NO2. When the number of reactions of the oxidant O3, ClO2 or KMnO4 inside the waterproof and breathable membrane bag B is too many, it is easy to remove the waterproof and breathable membrane bag B from the inside of the denitrification cylinder, thereby facilitating the replacement of the waterproof and breathable membrane bag B and improving the denitrification effect of the device.

[0008] Preferably, the dimensions of the card slot are adapted to the dimensions of the card block, and the positions of the card slot and the card block correspond to each other.

[0009] The advantage of the above technical solution is that when the arc-shaped cover is sealed and installed inside the placement groove, the locking block can be locked and installed inside the locking groove, thereby fixing the arc-shaped cover inside the placement groove and preventing the arc-shaped cover from falling out of the placement groove on the side wall of the denitrification cylinder during use, thus ensuring the normal use of the device.

[0010] Preferably, it also includes a bag cover, the end of which is away from the smoke hood and is fixedly connected to the bottom of the inner cavity of the denitrification cylinder, and one side of the scraper is in contact with the outer side of the bag cover.

[0011] The advantage of the above technical solution is that the flue gas introduced through the flue pipe will be discharged into the interior of the denitrification cylinder through the smoke hood. When the flue gas rises, it first passes through the bag filter to filter out large particles inside the flue gas. The large particles will adhere to the inside of the bag filter. When the driven tooth rotates, it can drive the scraper to rotate, thereby scraping the bag filter and shaking off the large particles inside the bag filter.

[0012] Preferably, a water inlet pipe is connected to one side of the waterproof and breathable membrane bladder A, and a drain pipe is connected to the other side of the waterproof and breathable membrane bladder A connected to the water inlet pipe. The ends of the water inlet pipe and the drain pipe away from the waterproof and breathable membrane bladder A pass through the fixing cylinder and the denitrification cylinder, and extend to the outside of the denitrification cylinder.

[0013] The advantage of the above technical solution is that NO inside the flue gas reacts with the oxidant O3, ClO2 or KMnO4 inside the waterproof and breathable membrane bag B to generate NO2. When NO2 continues to rise and passes through the waterproof and breathable membrane bag A, the water inside the waterproof and breathable membrane bag A will absorb the NO. The liquid inside the waterproof and breathable membrane bag A can be easily replaced through the water inlet pipe and the water outlet pipe.

[0014] Preferably, a placement block is fixedly installed on the outer side of the waterproof and breathable membrane bladder B, a placement block placement groove is opened on the inner side of the fixing ring, and the placement block is slidably installed on the inner side of the placement block placement groove. A handle is fixedly installed on the outer side of the arc-shaped cover.

[0015] The advantage of the above technical solution is that the waterproof and breathable membrane bladder B inside the fixing ring can be easily replaced by the set placement block and placement slot.

[0016] Preferably, a groove is provided at the bottom of the inner cavity of the denitrification cylinder, a sliding ball is fixedly installed at the bottom of the driven tooth, the sliding ball is slidably installed inside the groove, the outer side of the driven tooth meshes with the outer side of the driving tooth, and one side of the motor is fixedly connected to the inner wall of the denitrification cylinder.

[0017] The advantage of the above technical solution is that after the motor starts, the output end of the motor can drive the rotating rod to rotate, thereby driving the driving gear to rotate, which in turn drives the driven gear to rotate, while the sliding ball can slide inside the groove.

[0018] Preferably, the top of the denitrification cylinder is connected to an air outlet pipe, the bottom of the denitrification cylinder is connected to a slag discharge pipe, and valves are provided on the outside of both the air outlet pipe and the slag discharge pipe.

[0019] The advantage of the above technical solution is that the flue gas can be discharged through the gas outlet pipe after denitrification, and large particles filtered by the bag filter can be discharged through the slag discharge pipe.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. By sealing the arc-shaped cap inside the placement slot, the waterproof and breathable membrane bag B is installed inside the denitrification cylinder. The installation is convenient and fast. The NO inside the flue gas reacts with the oxidant O3, ClO2 or KMnO4 inside the waterproof and breathable membrane bag B to generate NO2. When the number of reactions of the oxidant O3, ClO2 or KMnO4 inside the waterproof and breathable membrane bag B is too many, the waterproof and breathable membrane bag B can be easily removed from the inside of the denitrification cylinder, which facilitates the replacement of the waterproof and breathable membrane bag B and improves the denitrification effect of the device.

[0022] 2. The flue gas introduced through the flue pipe will be discharged into the interior of the denitrification cylinder through the smoke hood. When the flue gas rises, it first passes through the bag filter to filter out large particles inside the flue gas. The large particles will adhere to the inside of the bag filter. After the motor starts, the output end of the motor can drive the rotating rod to rotate, which in turn drives the driving gear to rotate, which in turn drives the driven gear to rotate. At the same time, the sliding ball can slide inside the groove. When the driven gear rotates, it can drive the scraper to rotate, which can scrape the bag filter and shake off the large particles inside the bag filter. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 3 This is an enlarged structural diagram of point A in the present invention;

[0026] Figure 4 This is a partial three-dimensional structural diagram of the present invention;

[0027] Figure 5 This is a partial top view of the structure of the present invention.

[0028] In the diagram: 1. Denitrification cylinder; 2. Arc-shaped cap; 3. Gas outlet pipe; 4. Water inlet pipe; 5. Drainage pipe; 6. Slag discharge pipe; 7. Placement trough; 8. Slot; 9. Smoke guide pipe; 10. Fixing cylinder; 11. Waterproof and breathable membrane bag A; 12. Fixing ring; 13. Waterproof and breathable membrane bag B; 14. Arc-shaped support plate; 15. Handle; 16. Smoke hood; 17. Bag cover; 18. Scraper; 19. Motor; 20. Placement block placement trough; 21. Placement block; 22. Rotating rod; 23. Driving gear; 24. Slide groove; 25. Sliding ball; 26. Driven gear; 27. Slot. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1-5As shown, a denitrification treatment device for flue gas from the coking crude benzene hydrogenation process includes a denitrification cylinder 1 and an arc-shaped cover 2. Three placement slots 7 are formed on the side wall of the denitrification cylinder 1, and slots 8 are formed on both sides of each slot 7. Three arc-shaped support plates 14 are fixedly installed inside the denitrification cylinder 1. A fixing cylinder 10 is fixedly installed inside the denitrification cylinder 1, and a waterproof and breathable membrane bladder A11 is fixedly installed inside the fixing cylinder 10. A smoke guide pipe 9 is fixedly installed on the side wall of the denitrification cylinder 1, and one end of the smoke guide pipe 9 inside the denitrification cylinder 1 is connected to a diffused smoke outlet. The bottom of the smoke hood 16 is fixedly equipped with a scraper 18. The bottom of the inner cavity of the denitrification cylinder 1 is rotatably equipped with a driven tooth 26. The bottom of the inner cavity of the denitrification cylinder 1 is rotatably equipped with a driving tooth 23. The top of the driving tooth 23 is fixedly equipped with a rotating rod 22. The top of the rotating rod 22 is fixedly equipped with a scraper 18. The top of the rotating rod 22 is fixedly equipped with a motor 19. The inner side of the arc-shaped cover 2 is fixedly equipped with a fixing ring 12. The inside of the fixing ring 12 is provided with a waterproof and breathable membrane bladder B13. Both sides of the arc-shaped cover 2 are fixedly equipped with locking blocks 27.

[0031] The working principle of the above technical solution is as follows:

[0032] The flue gas introduced through the flue pipe 9 will be discharged into the interior of the denitrification cylinder 1 through the smoke hood 16. When the flue gas rises, it first passes through the bag filter 17 for filtration, filtering out large particles inside the flue gas. The large particles will adhere to the inner side of the bag filter 17. When the driven tooth 26 rotates, it can drive the scraper 18 to rotate, thereby scraping the bag filter 17 and shaking off the large particles inside the bag filter 17. After the motor 19 is started, the output end of the motor 19 can drive the rotating rod 22 to rotate, thereby driving the driving tooth 23 to rotate, which in turn drives the driven tooth 26 to rotate. At the same time, the sliding ball 25 can slide inside the sliding groove 24, which can seal the arc-shaped cover 2 inside the placement groove 7, thereby installing the waterproof and breathable membrane bag B13 inside the denitrification cylinder 1. The installation is convenient and fast. NO inside the flue gas passes through the waterproof and breathable membrane bag B13. The internal oxidant O3, ClO2, or KMnO4 reacts to oxidize and generate NO2. When the number of reactions of the oxidant O3, ClO2, or KMnO4 inside the waterproof and breathable membrane bag B13 is too many, it is convenient to remove the waterproof and breathable membrane bag B13 from the inside of the denitrification cylinder 1, so as to facilitate the replacement of the waterproof and breathable membrane bag B13 and improve the denitrification effect of the device. The NO inside the flue gas reacts with the oxidant O3, ClO2, or KMnO4 inside the waterproof and breathable membrane bag B13 to oxidize and generate NO2. When it continues to rise and passes through the waterproof and breathable membrane bag A11, the water inside the waterproof and breathable membrane bag A11 will absorb the NO2. The liquid inside the waterproof and breathable membrane bag A11 can be easily replaced through the water inlet pipe 4 and the drain pipe 5. After denitrification, the flue gas can be discharged through the gas outlet pipe 3. Large particles filtered by the bag cover 17 can be discharged through the slag discharge pipe 6.

[0033] In another implementation scheme, such as Figure 1-5 As shown, the dimensions of the arc-shaped cover 2 are compatible with the dimensions of the placement groove 7, and the outer side of the arc-shaped cover 2 is provided with sealing rubber. The dimensions of the slot 8 are compatible with the dimensions of the block 27, and the positions of the slot 8 and the block 27 correspond to each other. The outer side of the waterproof and breathable membrane bag B13 is fixedly installed with a placement block 21. The inner side of the fixing ring 12 is provided with a placement block placement groove 20, and the placement block 21 is slidably installed on the inner side of the placement block placement groove 20. The outer side of the arc-shaped cover 2 is fixedly installed with a handle 15.

[0034] The arc-shaped cap 2 can be sealed inside the placement groove 7, thereby installing the waterproof and breathable membrane bag B13 inside the denitrification cylinder 1. Installation is convenient and fast. NO inside the flue gas reacts with the oxidant O3, ClO2, or KMnO4 inside the waterproof and breathable membrane bag B13 to generate NO2. When the number of reactions with the oxidant O3, ClO2, or KMnO4 inside the waterproof and breathable membrane bag B13 exceeds a certain threshold, the waterproof and breathable membrane bag B13 can be easily removed from the denitrification cylinder 1, thus facilitating... Replace the waterproof and breathable membrane bladder B13 to improve the denitrification effect of the device. When the arc-shaped cover 2 is sealed and installed inside the placement groove 7, the locking block 27 can be locked and installed inside the locking groove 8, thereby fixing the arc-shaped cover 2 inside the placement groove 7. This prevents the arc-shaped cover 2 from falling out of the placement groove 7 on the side wall of the denitrification cylinder 1 during use, ensuring the normal use of the device. The installation block 21 and the installation block placement groove 20 facilitate the replacement of the waterproof and breathable membrane bladder B13 inside the fixing ring 12.

[0035] In another implementation scheme, such as Figure 1-5 As shown, the end of the bag cover 17 away from the smoke hood 16 is fixedly connected to the bottom of the inner cavity of the denitrification cylinder 1. One side of the scraper 18 is in contact with the outer side of the bag cover 17. A sliding groove 24 is provided at the bottom of the inner cavity of the denitrification cylinder 1. A sliding ball 25 is fixedly installed at the bottom of the driven tooth 26. The sliding ball 25 is slidably installed inside the sliding groove 24. The outer side of the driven tooth 26 meshes with the outer side of the driving tooth 23. One side of the motor 19 is fixedly connected to the inner wall of the denitrification cylinder 1.

[0036] The flue gas introduced through the flue pipe 9 will be discharged into the interior of the denitrification cylinder 1 through the smoke hood 16. When the flue gas rises, it first passes through the bag cover 17 for filtration, filtering out large particles inside the flue gas. The large particles will adhere to the inside of the bag cover 17. When the driven tooth 26 rotates, it can drive the scraper 18 to rotate, thereby scraping the bag cover 17 and shaking off the large particles inside the bag cover 17. After the motor 19 is started, the output end of the motor 19 can drive the rotating rod 22 to rotate, thereby driving the driving tooth 23 to rotate, thereby driving the driven tooth 26 to rotate. At the same time, the sliding ball 25 can slide inside the sliding groove 24.

[0037] In another implementation scheme, such as Figure 1-5 As shown, a water inlet pipe 4 is connected to one side of the waterproof and breathable membrane bladder A11, and a drain pipe 5 is connected to the other side of the waterproof and breathable membrane bladder A11 connected to the water inlet pipe 4. The ends of the water inlet pipe 4 and the drain pipe 5 away from the waterproof and breathable membrane bladder A11 pass through the fixed cylinder 10 and the denitrification cylinder 1, and extend to the outside of the denitrification cylinder 1.

[0038] NO inside the flue gas reacts with the oxidant O3, ClO2 or KMnO4 inside the waterproof and breathable membrane bag B13 to generate NO2. As the flue gas continues to rise and passes through the waterproof and breathable membrane bag A11, the water inside the waterproof and breathable membrane bag A11 absorbs the NO2. The liquid inside the waterproof and breathable membrane bag A11 can be easily replaced through the water inlet pipe 4 and the drain pipe 5.

[0039] In another implementation scheme, such as Figure 1-5 As shown, the top of the denitrification cylinder 1 is connected to the air outlet pipe 3, and the bottom of the denitrification cylinder 1 is connected to the slag discharge pipe 6. Valves are installed on the outside of both the air outlet pipe 3 and the slag discharge pipe 6.

[0040] After denitrification, the flue gas can be discharged through the exhaust pipe 3, and large particles filtered by the bag filter 17 can be discharged through the slag discharge pipe 6.

[0041] The working principle and usage process of this invention: Flue gas introduced through the flue pipe 9 is discharged into the denitrification cylinder 1 through the smoke hood 16. As the flue gas rises, it first passes through the bag filter 17 for filtration, removing large particles. These large particles adhere to the inner side of the bag filter 17. When the driven tooth 26 rotates, it drives the scraper 18 to rotate, scraping the bag filter 17 and shaking off the large particles inside. After the motor 19 starts, its output drives the rotating rod 22 to rotate, which in turn drives the driving tooth 23, which in turn drives the driven tooth 26. Simultaneously, the sliding ball 25 slides inside the sliding groove 24, sealing the arc-shaped cover 2 inside the placement groove 7. This allows the waterproof and breathable membrane bag B13 to be installed inside the denitrification cylinder 1. Installation is convenient and fast. NO inside the flue gas passes through the waterproof membrane bag. The oxidant O3, ClO2, or KMnO4 inside the breathable membrane bag B13 reacts to generate NO2. When the number of reactions of the oxidant O3, ClO2, or KMnO4 inside the waterproof and breathable membrane bag B13 is too many, it is convenient to remove the waterproof and breathable membrane bag B13 from the inside of the denitrification cylinder 1, so as to facilitate the replacement of the waterproof and breathable membrane bag B13 and improve the denitrification effect of the device. The NO inside the flue gas reacts with the oxidant O3, ClO2, or KMnO4 inside the waterproof and breathable membrane bag B13 to generate NO2. When it continues to rise and passes through the waterproof and breathable membrane bag A11, the water inside the waterproof and breathable membrane bag A11 will absorb the NO2. The liquid inside the waterproof and breathable membrane bag A11 can be easily replaced through the water inlet pipe 4 and the drain pipe 5. After denitrification, the flue gas can be discharged through the gas outlet pipe 3. Large particles filtered by the bag cover 17 can be discharged through the slag discharge pipe 6.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A denitration treatment device for coke crude benzene hydrogenation process waste gas incineration flue gas, comprising a denitration cylinder (1) and an arc-shaped cover (2), characterized in that: The side wall of the denitration cylinder (1) is provided with three placing grooves (7), the two sides of the three placing grooves (7) are provided with clamping grooves (8), the inside of the denitration cylinder (1) is fixedly provided with three arc-shaped supporting plates (14), the inside of the denitration cylinder (1) is fixedly provided with a fixed cylinder (10), the inside of the fixed cylinder (10) is fixedly provided with a waterproof and breathable membrane bag A (11), the side wall of the denitration cylinder (1) is fixedly provided with a smoke guide pipe (9), one end of the smoke guide pipe (9) in the inside of the denitration cylinder (1) is communicated with a smoke dispersing cover (16), the bottom of the smoke dispersing cover (16) is fixedly provided with a scraper (18), the bottom of the inside of the denitration cylinder (1) is rotatably provided with a driven gear (26), the bottom of the inside of the denitration cylinder (1) is rotatably provided with a driving gear (23), the top of the driving gear (23) is fixedly provided with a rotating rod (22), the top of the rotating rod (22) is fixedly provided with a scraper (18), the top of the rotating rod (22) is fixedly provided with a motor (19), the inside of the arc-shaped cover (2) is fixedly provided with a fixed ring (12), the inside of the fixed ring (12) is provided with a waterproof and breathable membrane bag B (13), the two sides of the arc-shaped cover (2) are fixedly provided with clamping blocks (27).

2. The denitration device for coking crude benzol hydrogenation process waste gas incineration flue gas according to claim 1, characterized in that: The size of the arc-shaped cover (2) is matched with the size of the placing groove (7), and the outside of the arc-shaped cover (2) is provided with sealing rubber.

3. The denitration device for the flue gas of the coking crude benzol hydrogenation process waste gas incinerator according to claim 1, characterized in that: The size of the clamping groove (8) is matched with the size of the clamping block (27), and the position of the clamping groove (8) corresponds to the position of the clamping block (27).

4. The denitration device for coking crude benzol hydrogenation process waste gas incineration flue gas according to claim 1, characterized in that: It also includes a cloth bag cover (17), one end of the cloth bag cover (17) away from the smoke dispersing cover (16) is fixedly connected with the bottom of the inside of the denitration cylinder (1), one side of the scraper (18) is in contact with the outside of the cloth bag cover (17).

5. The denitration device for coking crude benzol hydrogenation process waste gas incineration flue gas according to claim 1, characterized in that: One side of the waterproof and breathable membrane bag A (11) is communicated with a water adding pipe (4), one side of the waterproof and breathable membrane bag A (11) communicated with the water adding pipe (4) is communicated with a water drainage pipe (5), one end of the water adding pipe (4) and the water drainage pipe (5) away from the waterproof and breathable membrane bag A (11) penetrates through the fixed cylinder (10) and the denitration cylinder (1), and extends to the outside of the denitration cylinder (1).

6. The denitration device for coking crude benzol hydrogenation process waste gas incineration flue gas according to claim 1, characterized in that: The outside of the waterproof and breathable membrane bag B (13) is fixedly provided with a placing block (21), the inside of the fixed ring (12) is provided with a placing block placing groove (20), and the placing block (21) is slidably installed in the inside of the placing block placing groove (20), the outside of the arc-shaped cover (2) is fixedly provided with a handle (15).

7. The denitrification treatment device for the flue gas from the coking crude benzene hydrogenation process according to claim 1, characterized in that: The bottom of the inside of the denitration cylinder (1) is provided with a sliding groove (24), the bottom of the driven gear (26) is fixedly provided with a sliding ball (25), the sliding ball (25) is slidably installed in the inside of the sliding groove (24), the outside of the driven gear (26) is engaged with the outside of the driving gear (23), one side of the motor (19) is fixedly connected with the inner wall of the denitration cylinder (1).

8. The denitration device for the flue gas of the waste gas incinerator of the coking crude benzol hydrogenation process according to claim 1, characterized in that: One end of the denitration cylinder (1) is communicated with an air outlet pipe (3), one end of the denitration cylinder (1) is communicated with a residue discharge pipe (6), and the outside of the air outlet pipe (3) and the residue discharge pipe (6) is provided with a valve.

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