Flexibly arranged denitration reaction tower

Abstract

The utility model belongs to the field of furnace denitration technology especially relates to the flexible arrangement's furnace denitration reaction tower, including the mounting seat, the inner wall top of mounting seat is connected with the rotary seat, the inner wall of rotary seat is provided with drive assembly, the top equidistance of rotary seat is provided with a plurality of segmented tower body, a plurality of the bottom of segmented tower body all are threadedly connected with a plurality of bolts no.

Description

Technical Field

[0001] This utility model belongs to the field of external denitrification technology, and in particular relates to an external denitrification reaction tower that can be flexibly arranged. Background Technology

[0002] The flue gas produced by industrial boilers burning fuel contains a large amount of nitrogen oxides. If directly emitted, it will cause serious pollution to the atmospheric environment, causing acid rain and photochemical smog. In order to treat nitrogen oxides and make the emitted flue gas meet emission standards, an external denitrification reaction tower is required.

[0003] Traditional external denitrification reaction towers consist of a main tower body, an inlet pipe, an outlet pipe, a catalyst packing layer, a flow guiding device, and auxiliary equipment. During operation, flue gas containing nitrogen oxides enters the reaction tower through the inlet pipe. The flow guiding device ensures even distribution of the flue gas. As it passes through the catalyst packing layer, the nitrogen oxides react with the injected reducing agent under the action of the catalyst, transforming into harmless substances. The purified flue gas is then discharged through the outlet pipe. However, because traditional external denitrification reaction towers are directly fixed to the ground during installation, the direction of the inlet pipe cannot be adjusted after installation. During boiler maintenance, the angle between the inlet pipe and the boiler must be measured first to prevent inaccurate alignment after boiler repairs. Existing technology uses a rotating seat installed at the bottom of the boiler to allow for angle adjustment of the inlet pipe, facilitating alignment with the boiler. However, in practical use, the existing reaction towers are integral structures, resulting in large size and weight, which is inconvenient for transportation and installation, reducing the practicality of the device. Utility Model Content

[0004] The purpose of this invention is to provide an external denitrification reaction tower that can be flexibly arranged, in order to solve the technical problem that the existing reaction towers are of a single integrated structure, which are large in size and weight, making them inconvenient to transport and install, thus reducing the practicality of the device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a flexibly arranged external denitrification reaction tower, including a mounting base, a rotating seat rotatably connected to the top of the inner wall of the mounting base, a driving assembly provided on the inner wall of the rotating seat, multiple segmented tower bodies equidistantly arranged on the top of the rotating seat, multiple bolts threadedly connected to the bottom of each segmented tower body, and the multiple segmented tower bodies being threadedly connected to each other by corresponding bolts, a flow equalization box fixedly connected to the inner wall of the bottom segmented tower body, an air inlet pipe connected to the outer wall of the flow equalization box, and an ammonia injection ring fixedly connected to the inner wall of the middle segmented tower body. The inner wall of the ammonia injection ring is fixedly connected with nozzles on all four sides. The outer wall of the ammonia injection ring is connected to a conveying pipe. Multiple catalyst drawers are slidably connected to the upper and lower sides of the inner wall of the upper segmented tower. The top of the top segmented tower is threadedly connected to a discharge pipe. Multiple guide plates are rotatably connected to the left and right sides of the inner wall of the discharge pipe. A connecting rod is rotatably connected between adjacent guide plates. A push rod is fixedly connected to the right side of the outer wall of the discharge pipe. The left end of the push rod is rotatably connected to the right guide plate. A quick-installation mechanism is provided on the right side of the outer wall of the top segmented tower for quickly installing the catalyst drawers.

[0006] As a further description of the above technical solution:

[0007] The quick-installation mechanism includes multiple insert blocks, which are respectively fixedly connected to the front and rear sides of the right end of the outer wall of the corresponding catalyst drawer. Multiple fixing blocks are fixedly connected to the right side of the outer wall of the upper segmented tower body. Multiple slots are opened on the right side of the outer wall of each of the fixing blocks. The insert blocks are slidably connected to the corresponding slots. The inner wall of each of the fixing blocks has a reserved hole. Insert rods are slidably connected to the inner wall of each of the reserved holes. Limiting rings are fixedly connected to the outer wall of each of the insert rods. Springs are fixedly connected to the opposite side of each of the limiting rings. The opposite end of each of the springs is fixedly connected to the corresponding reserved hole. A reserved opening is opened in the middle of the outer wall of each of the insert blocks. The adjacent end of each of the insert rods engages with the corresponding reserved opening.

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a motor, the top of which is fixedly connected to the top left side of the inner wall of the rotating base. A gear is fixedly connected to the output end of the motor, and a gear ring is fixedly connected to the inner wall of the mounting base. The gear meshes with the gear ring.

[0010] As a further description of the above technical solution:

[0011] An installation box is fixedly connected to the front side of the outer wall of the discharge pipe, and an alarm light is fixedly connected to the inner wall of the installation box.

[0012] As a further description of the above technical solution:

[0013] A controller is fixedly connected to the front side of the outer wall of the bottom segmented tower body, and the controller is electrically connected to the motor.

[0014] As a further description of the above technical solution:

[0015] The mounting base is provided with fixing seats on all four sides of its outer wall. Multiple bolts are threadedly connected to the outer walls of the fixing seats, and the multiple bolts are threadedly connected to the mounting base.

[0016] As a further description of the above technical solution:

[0017] The spacing between the plurality of catalyst drawers is equal, and the surfaces of the plurality of catalyst drawers are all treated with anti-corrosion measures.

[0018] As a further description of the above technical solution:

[0019] The bolts are arranged in a ring around the center of the corresponding segmented tower body, and the surfaces of the bolts are all treated with wear-resistant materials.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by using segmented tower bodies and bolts, the tower bodies can be disassembled during transportation to reduce volume, and then reconnected during installation. This solves the problem of inconvenient transportation and installation of existing integrated reaction tower structures, improving practicality. The components such as the flow equalization box, ammonia injection ring, nozzle, catalyst drawer, and discharge pipe work together to achieve flue gas flow equalization, ammonia injection, reaction, and emission direction control, ensuring that the denitrification process is carried out efficiently and stably.

[0022] 2. In this utility model, during installation, the insert block is used to squeeze the insert rod to store energy in the spring. When the reserved opening is aligned with the reserved hole, the spring pushes the insert rod into the reserved opening to complete the quick fixation, ensuring the stability of the catalyst drawer during the operation of the reaction tower. During disassembly, the drawer can be removed by pulling the insert rod out of the reserved opening. This greatly improves the problem of inconvenience in catalyst inspection, replacement or maintenance under the traditional method, improves the maintenance efficiency of the reaction tower, and ensures the continuous and efficient operation of denitrification. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a perspective view of the flexibly arranged external denitrification reaction tower proposed in this utility model;

[0025] Figure 2 This is a front view of the flexibly arranged external denitrification reaction tower proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the drive assembly of the flexibly arranged external denitrification reaction tower proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the ammonia injection ring of the flexibly arranged external denitrification reaction tower proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the catalyst drawer of the flexibly arranged external denitrification reaction tower proposed in this utility model;

[0029] Figure 6 This is a schematic diagram of the flow equalization box of the flexibly arranged external denitrification reaction tower proposed in this utility model;

[0030] Figure 7 This is a schematic diagram of the quick-assembly mechanism for the flexibly arranged external denitrification reaction tower proposed in this utility model.

[0031] The following are the labeling elements in the figure:

[0032] 1. Mounting base; 2. Quick-installation mechanism; 201. Insert block; 202. Fixing block; 203. Slot; 204. Reserved hole; 205. Insert rod; 206. Limiting ring; 207. Spring; 208. Reserved opening; 3. Rotating seat; 4. Motor; 5. Gear; 6. Gear ring; 7. Segmented tower body; 8. Bolt one; 9. Flow equalization box; 10. Air inlet pipe; 11. Catalyst drawer; 12. Ammonia injection ring; 13. Nozzle; 14. Conveying pipe; 15. Discharge pipe; 16. Guide plate; 17. Connecting rod; 18. Push rod; 19. Mounting box; 20. Alarm light; 21. Controller; 22. Fixing base; 23. Bolt two. Detailed Implementation

[0033] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0037] Reference Figure 3 , Figure 4 and Figure 5This utility model provides an embodiment of an external denitrification reaction tower that can be flexibly arranged, including a mounting base 1, which provides a stable mounting platform for other components of the reaction tower. A rotating seat 3 is rotatably connected to the top of the inner wall of the mounting base 1. This rotatable connection allows the structure above the rotating seat 3 to rotate around the center of the mounting base 1, thereby adjusting the overall angle of the reaction tower. A driving assembly is provided on the inner wall of the rotating seat 3 to provide power for its rotation. Multiple segmented tower bodies 7 are equidistantly arranged on the top of the rotating seat 3, forming the main body of the reaction tower. This segmented design facilitates transportation and installation, reducing the transportation and installation difficulties caused by the large overall structure. The bottom of each section 7 is threaded with multiple bolts 8, and the multiple section towers 7 are connected to each other by corresponding bolts 8, which are used to firmly connect the various section towers 7 together. The inner wall of the bottom section tower 7 is fixedly connected with a flow equalization box 9, so that the nitrogen oxide-containing flue gas entering from the air inlet pipe 10 is evenly dispersed into the interior of the section tower 7, providing uniform flue gas conditions for the subsequent denitrification reaction. The outer wall of the flow equalization box 9 is connected to the air inlet pipe 10. The inner wall of the middle section tower 7 is fixedly connected with an ammonia injection ring 12, which evenly injects ammonia into the rising flue gas, so that the ammonia and flue gas are fully mixed. The inner wall of the ammonia injection ring 12 is fixedly connected with nozzles 13 around its perimeter. The nozzles 13 are tilted downwards, so that the ammonia in the ammonia injection ring 12 is injected into the flue gas at a specific angle to enhance the ammonia concentration. The mixing effect of ammonia and flue gas is achieved through a conveying pipe 14 connected to the outer wall of the ammonia injection ring 12, which is responsible for conveying ammonia to the injection ring 12. Multiple catalyst drawers 11, containing catalysts, are slidably connected to the upper and lower sides of the inner wall of the upper segmented tower 7. When the flue gas rises to these drawers, it comes into contact with the catalyst exposed from the catalyst drawers 11, causing nitrogen oxides to react with ammonia, thus achieving denitrification. A discharge pipe 15 is threadedly connected to the top of the top segmented tower 7, conveying the treated flue gas to subsequent equipment or an emission port. Multiple guide plates 16 are rotatably connected to the left and right sides of the inner wall of the discharge pipe 15. By changing their angle, the emission direction of the flue gas in the discharge pipe 15 can be adjusted. Connecting rods 17 are rotatably connected between adjacent guide plates 16, allowing the multiple guide plates 16 to... Plate 16 can move synchronously to ensure the consistency of flue gas emission direction adjustment. A push rod 18 is fixedly connected to the right side of the outer wall of the emission pipe 15. The left end of the push rod 18 is rotatably connected to the right guide plate 16, driving the right guide plate 16 to rotate. Then, through the connecting rod 17, it drives other guide plates 16 to rotate synchronously. A quick-installation mechanism 2 is provided on the right side of the outer wall of the top section tower body 7. The quick-installation mechanism 2 is used to quickly install the catalyst drawer 11. The drive assembly includes a motor 4, which serves as the power source for the drive assembly. The top of the motor 4 is fixedly connected to the top left side of the inner wall of the rotating seat 3. A gear 5 is fixedly connected to the output end of the motor 4. A gear ring 6 is fixedly connected to the inner wall of the mounting seat 1. The gear 5 and the gear ring 6 mesh and connect to achieve the rotation of the rotating seat 3 around the center of the mounting seat 1.

[0038] Specifically, mounting base 1 provides a stable support foundation for the entire reaction tower. Its inner wall top is rotatably connected to rotating base 3, allowing rotating base 3 and the structure above it to rotate around the center of mounting base 1. This enables adjustment of the overall angle of the reaction tower, facilitating connection to boiler pipes in different locations. Motor 4 is fixed to the top left side of the inner wall of rotating base 3. After startup, its output drives gear 5 to rotate. Gear 5 meshes with the gear ring 6 on the inner wall of mounting base 1, transmitting the rotational power of motor 4, which in turn drives rotating base 3 to rotate around the center of mounting base 1, providing power for adjusting the angle of the reaction tower. Multiple segmented tower bodies 7 are connected by bolts and threads 8 to form the main body of the reaction tower. The segmented tower bodies 7 can be disassembled for transportation, significantly reducing volume and facilitating handling. Flue gas containing nitrogen oxides enters the flow equalization box 9 through inlet pipe 10. The flow equalization box 9 ensures that the incoming flue gas is evenly distributed across the segmented tower bodies. Inside section 7, to ensure the uniformity and efficiency of the subsequent denitrification reaction, the conveying pipe 14 delivers ammonia to the ammonia injection ring 12. The downward-sloping nozzles 13 on the inner wall of the ammonia injection ring 12 spray ammonia into the rising flue gas. This design helps the ammonia and flue gas to mix thoroughly, providing good conditions for the subsequent denitrification reaction under the action of the catalyst. When the flue gas rises to this position, it comes into contact with the catalyst exposed from the catalyst drawer 11, causing nitrogen oxides to react with ammonia, converting nitrogen oxides into harmless nitrogen and water, thus achieving the denitrification function. The purified flue gas enters the discharge pipe 15. Operating the push rod 18 can drive the right guide plate 16 to rotate. The guide plate 16 drives other guide plates 16 to rotate synchronously through the connecting rod 17, thereby adjusting the angle of the guide plate 16 and controlling the direction of flue gas emission, so that it can be better connected to the downstream equipment or meet the emission requirements.

[0039] Reference Figure 1 , Figure 5 and Figure 7The quick-installation mechanism 2 includes multiple insert blocks 201, which are fixedly connected to the front and rear sides of the right end of the outer wall of the corresponding catalyst drawer 11. Multiple fixing blocks 202 are fixedly connected to the right side of the outer wall of the upper segmented tower body 7. Multiple slots 203 are provided on the right side of the outer wall of each fixing block 202. The insert blocks 201 are slidably connected to their corresponding slots 203. The insertion blocks 201 cooperate with the slots 203 on the fixing blocks 202, providing initial positioning and guidance for the installation of the catalyst drawer 11. Pre-drilled holes 204 are provided on the inner walls of each fixing block 202, providing sliding space for the insert rods 205 and also serving as the installation position for the springs 207. Insert rods 205 are slidably connected to the inner walls of the pre-drilled holes 204, sliding within them. During the installation of the catalyst drawer 11, the rods are moved by the pressure of the insert blocks 201 and, under the action of the springs 207, ultimately engage with the pre-drilled openings 208 on the insert blocks 201. Each of the multiple insertion rods 205 has a limiting ring 206 fixedly connected to its outer wall to restrict the movement range of the insertion rod 205 within the pre-drilled hole 204. A spring 207 is fixedly connected to the opposite side of each limiting ring 206. When the insertion block 201 presses against the insertion rod 205, the spring 207 is compressed and stores elastic potential energy. When the pre-drilled opening 208 on the insertion block 201 aligns with the pre-drilled hole 204, the spring 207 releases its elastic potential energy, pushing the insertion rod 205 into the pre-drilled opening 208. The catalyst drawer 11 is quickly fixed. The opposite ends of multiple springs 207 are fixedly connected to the corresponding reserved holes 204. The outer wall of multiple inserts 201 is provided with a reserved opening 208. When the insert 201 is inserted into the slot 203 to the appropriate position, the reserved opening 208 is aligned with the reserved hole 204 to provide insertion space for the insert rod 205, thereby realizing the engagement with the insert rod 205. The adjacent ends of multiple insert rods 205 are engaged with the corresponding reserved opening 208.

[0040] Specifically, during the installation of catalyst drawer 11, the insert block 201 moves to the left with the drawer and inserts into slot 203. This engagement provides initial positioning and guidance, ensuring that catalyst drawer 11 can be accurately installed in the designated position of segmented tower body 7, preparing for subsequent fixing. As the insert block 201 inserts into slot 203, it presses against the insert rod 205. The insert rod 205 drives the limiting ring 206 to move away from the insert block 201, compressing the spring 207 to store elastic potential energy. The elastic force of the spring 207 acts on the insert rod 205 through the limiting ring 206, ready to push the insert rod 205 back to its original position. When catalyst drawer 11... 1. Continue moving to the left. When the reserved opening 208 on the insert block 201 aligns with the reserved hole 204, the spring 207 releases its elastic potential energy, pushing the limiting ring 206 and the insert rod 205 to the adjacent side, so that the insert rod 205 is inserted into the reserved opening 208 and engaged. This engagement enables the catalyst drawer 11 to be quickly fixed, ensuring that the drawer will not come out due to vibration or other reasons during the operation of the reaction tower, thus ensuring the stable progress of the denitrification reaction. When it is necessary to remove the catalyst drawer 11, pull the insert rod 205 to remove it from the reserved opening 208, thereby releasing the restriction on the insert block 201 and making it easy to remove the drawer for maintenance or replacement.

[0041] Reference Figure 1 , Figure 2 and Figure 6 An installation box 19 is fixedly connected to the front side of the outer wall of the discharge pipe 15 to provide installation space for internal components. An alarm light 20 is fixedly connected to the inner wall of the installation box 19. When the equipment is abnormal, the alarm light 20 will light up to remind the staff to check and repair. A controller 21 is fixedly connected to the front side of the outer wall of the bottom section tower body 7. The controller 21 is electrically connected to the motor 4. The controller 21 is used to control the rotation speed of the motor 4 to facilitate the adjustment of the angle of the air intake pipe 10.

[0042] Specifically, when the reaction tower malfunctions, the alarm light 20 illuminates to alert the operator that there is a problem with the reaction tower's operation so that it can be dealt with in a timely manner. The controller 21 is used to control the rotation speed of the motor 4, which facilitates the adjustment of the angle of the air inlet pipe 10.

[0043] Reference Figure 1 , Figure 3 and Figure 5The mounting base 1 is equipped with fixing seats 22 on all four sides of its outer wall. Multiple fixing seats 22 are threaded with multiple bolts 23 on their outer walls. The bolts 23 are threaded to the mounting base 1. After the bolts 23 are tightened, the mounting base 1 is securely installed, ensuring the overall stability of the reaction tower. The spacing between multiple catalyst drawers 11 is equal, which is conducive to the uniform contact of flue gas with the catalyst and improves the denitrification effect. The surfaces of multiple catalyst drawers 11 are all treated with anti-corrosion to extend their service life. Multiple bolts 8 are arranged in a ring around the center of the corresponding segment tower body 7. When connecting the segment tower body 7, they can be evenly stressed. The surfaces of multiple bolts 8 are all treated with wear-resistant material, which ensures a stable connection during long-term use.

[0044] Specifically, the mounting base 1 is fixed to the foundation by the fixing bases 22 around the perimeter and bolts 23. After the bolts 23 are tightened, the mounting base 1 is firmly installed to ensure the overall stability of the reaction tower. Multiple catalyst drawers 11 are set at equal intervals to facilitate uniform contact of flue gas with the catalyst and improve the denitrification effect. The surface anti-corrosion treatment can extend the service life. The bolts 8 are distributed in a ring array and are treated with wear resistance. When connecting the segmented tower body 7, they can be evenly stressed, and the wear resistance ensures a stable connection during long-term use.

[0045] Working Principle: During installation, the reaction tower adopts a segmented tower body 7 structure. Multiple segments 7 are connected by bolts 8. This design allows the segments 7 to be disassembled during transportation, greatly reducing the volume and facilitating handling. After arriving at the installation site, the segments 7 are connected sequentially by bolts 8, improving installation convenience and effectively solving the problem of large volume and weight of integrated structures. During operation, the rotating seat 3 on the top of the inner wall of the mounting base 1 rotates under the action of the drive assembly. In the drive assembly, the motor 4 is fixed on the top left side of the inner wall of the rotating seat 3, and the gear 5 at its output end meshes with the gear ring 6 on the inner wall of the mounting base 1. When the motor 4 starts, it drives the gear 5 to rotate, thereby causing the rotating seat 3 to rotate around the center of the mounting base 1, realizing the overall angle adjustment of the reaction tower, which is convenient for connection with the boiler inlet pipe 10 in different positions. Next, the flue gas containing nitrogen oxides enters the flow equalization box 9 from the inlet pipe 10. The flow equalization box 9 evenly disperses the flue gas into the segmented tower body 7. When the flue gas rises to the middle segmented tower body 7, the ammonia injection ring 12 injects ammonia into the flue gas through the downward-sloping nozzles 13. The ammonia mixes thoroughly with the flue gas. Subsequently, the flue gas continues to rise to the upper segmented tower body 7 and comes into contact with the catalyst leaking from the catalyst drawer 11. Under the action of the catalyst, the nitrogen oxides and ammonia react and are converted into harmless nitrogen and water. The purified flue gas enters the discharge pipe 15. By operating the push rod 18, the right guide plate 16 can be rotated, and then the other guide plates 16 can be rotated synchronously through the connecting rod 17. The angle of the guide plates 16 is adjusted to control the direction of flue gas emission, so that it can be better connected to the downstream equipment or meet the emission requirements.

[0046] Furthermore, during the installation of catalyst drawer 11, the catalyst drawer 11 is moved to the left and inserted into the corresponding segmented tower body 7. At this time, the insert block 201 fixed on the front and rear sides of the right end of the outer wall of the catalyst drawer 11 will move to the left and insert into the slot 203 on the fixing block 202 as the catalyst drawer 11 moves. During this process, the insert block 201 first squeezes the insert rod 205, causing it to move into the reserved hole 204. The movement of the insert rod 205 drives the limiting ring 206 to move away from the side, thereby squeezing the spring 207 and causing the spring 207 to store elastic potential energy. As the catalyst drawer 11 continues to move to the left, the insert block 201 also continues to follow. When the insert block 201... When the reserved opening 208 moves to align with the reserved hole 204, under the action of the elastic potential energy stored in the spring 207, the spring 207 pushes the limiting ring 206 to the adjacent side, thereby driving the insertion rod 205 to insert into the corresponding reserved opening 208, realizing the rapid fixation of the catalyst drawer 11 and ensuring its stability during the operation of the reaction tower. When it is necessary to remove the catalyst drawer 11, simply pull the insertion rod 205 to the opposite side, and the insertion rod 205 will disengage from the reserved opening 208, releasing the restriction on the insertion block 201. At this time, the catalyst drawer 11 can be easily removed from the segmented tower body 7, facilitating the inspection, replacement or maintenance of the catalyst.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flexible arrangement of the denitration reaction tower outside the furnace, comprising a mounting seat (1), characterized in that: A rotating seat (3) is rotatably connected to the top of the inner wall of the mounting base (1). A driving assembly is provided on the inner wall of the rotating seat (3). Multiple segmented tower bodies (7) are equidistantly arranged on the top of the rotating seat (3). Multiple bolts (8) are threadedly connected to the bottom of each segmented tower body (7). The multiple segmented tower bodies (7) are threaded together by corresponding bolts (8). A flow equalization box (9) is fixedly connected to the inner wall of the bottom segmented tower body (7). An air inlet pipe (10) is connected to the outer wall of the flow equalization box (9). An ammonia spraying ring (12) is fixedly connected to the inner wall of the middle segmented tower body (7). Spray nozzles (13) are fixedly connected to the four sides of the inner wall of the ammonia spraying ring (12). The outer wall of the upper segmented tower body (7) is connected to a conveying pipe (14). Multiple catalyst drawers (11) are slidably connected to the upper and lower sides of the inner wall of the upper segmented tower body (7). The top of the upper segmented tower body (7) is threadedly connected to a discharge pipe (15). Multiple guide plates (16) are rotatably connected to the left and right sides of the inner wall of the discharge pipe (15). A connecting rod (17) is rotatably connected between adjacent guide plates (16). A push rod (18) is fixedly connected to the right side of the outer wall of the discharge pipe (15). The left end of the push rod (18) is rotatably connected to the right guide plate (16). A quick-installation mechanism (2) is provided on the right side of the outer wall of the upper segmented tower body (7). The quick-installation mechanism (2) is used to quickly install the catalyst drawers (11).

2. The flexibly-arranged off-machine denitration reaction tower according to claim 1, characterized in that: The quick-installation mechanism (2) includes multiple insert blocks (201), which are fixedly connected to the front and rear sides of the right end of the outer wall of the corresponding catalyst drawer (11). Multiple fixing blocks (202) are fixedly connected to the right side of the outer wall of the upper segmented tower body (7). Multiple slots (203) are provided on the right side of the outer wall of each fixing block (202). The insert blocks (201) are slidably connected to the corresponding slots (203). Pre-drilled holes (204) are provided on the inner walls of each fixing block (202). The inner wall of each of the reserved holes (204) is slidably connected with a rod (205), and the outer wall of each of the multiple rods (205) is fixedly connected with a limiting ring (206). Each of the multiple limiting rings (206) is fixedly connected with a spring (207) on the opposite side. Each of the multiple springs (207) is fixedly connected to the corresponding reserved hole (204) at the opposite end. Each of the multiple inserts (201) has a reserved opening (208) in the middle of its outer wall. Each of the multiple rods (205) has an adjacent end that engages with the corresponding reserved opening (208).

3. The flexibly arranged external denitrification reaction tower according to claim 1, characterized in that: The drive assembly includes a motor (4), the top of which is fixedly connected to the top left side of the inner wall of the rotating seat (3), and a gear (5) is fixedly connected to the output end of the motor (4). A gear ring (6) is fixedly connected to the inner wall of the mounting seat (1), and the gear (5) meshes with the gear ring (6).

4. The flexibly arrangeable off- furnace denitration reaction tower according to claim 1, characterized in that: An installation box (19) is fixedly connected to the front side of the outer wall of the discharge pipe (15), and an alarm light (20) is fixedly connected to the inner wall of the installation box (19).

5. The flexibly arrangeable off- furnace denitration reaction tower according to claim 3, characterized in that: A controller (21) is fixedly connected to the front side of the outer wall of the bottom segmented tower body (7), and the controller (21) is electrically connected to the motor (4). 6.The flexibly-arranged off-machine denitration reaction tower according to claim 1, characterized in that: The mounting base (1) is provided with fixing seats (22) on all four sides of its outer wall. The outer walls of the fixing seats (22) are threaded with multiple bolts (23), and the multiple bolts (23) are threaded to the mounting base (1). 7.The flexibly-arranged off-machine denitration reaction tower according to claim 1, characterized in that: The spacing between the plurality of catalyst drawers (11) is equal, and the surfaces of the plurality of catalyst drawers (11) are all treated with anti-corrosion measures. 8.The flexibly-arranged furnace off-NOx removal reaction tower according to claim 1, characterized in that: The multiple bolts (8) are arranged in a ring around the center of the corresponding segmented tower body (7), and the surfaces of the multiple bolts (8) are all treated with wear resistance.

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