An absorption tower for desulfurization and denitrification by active coke dry method

Abstract

This utility model relates to the field of dry desulfurization and discloses an absorption tower for dry desulfurization and denitrification using activated coke. The absorption tower includes an inlet pipe fixedly connected to its side wall, an outlet pipe fixedly connected to its top via a tower cover, a first diversion plate fixedly connected to its inner wall, a second diversion plate fixedly connected to its inner wall, and diversion holes perforated on the surface of the second diversion plate. A support ring is fixedly connected to the inner wall of the absorption tower, a placement plate is mounted on top of the support ring, and through holes perforated on the surface of the placement plate. A feed pipe is fixedly connected to the inner wall of the absorption tower, and a turbulence-inducing component is installed inside the absorption tower. In this utility model, by configuring the first diversion plate, the second diversion plate, and the diversion holes, the flue gas is sheared into multiple streams that uniformly contact the activated coke particles, ensuring sufficient contact between the activated coke particles and the flue gas, and improving the desulfurization and denitrification effect.

Description

Technical Field

[0001] This utility model relates to the field of dry desulfurization, and in particular to an absorption tower that utilizes activated coke for dry desulfurization and denitrification. Background Technology

[0002] Dry desulfurization and denitrification using activated coke is a technology that utilizes activated coke to simultaneously perform desulfurization and denitrification within a single reactor. Through the adsorption and catalytic properties of activated coke, sulfur dioxide and nitrogen oxides in flue gas are removed. The coke oven flue gas first undergoes pretreatment, such as cooling and dust removal, to lower the flue gas temperature and remove large particulate dust. The pretreated flue gas then enters the activated coke adsorption tower, where it comes into contact with the activated coke. Sulfur dioxide and nitrogen oxides are adsorbed and undergo a chemical reaction.

[0003] A search revealed that Chinese Patent Publication No. CN221808464U discloses an absorption tower for dry desulfurization and denitrification using activated coke. By setting up a spiral packing tube, the activated coke can be distributed in multiple positions within the tower, thereby increasing the absorption range of gases with different concentrations within the tower and improving desulfurization efficiency.

[0004] In the above technical solution, the activated coke is distributed in the tower using a spiral packing tube to absorb harmful substances in the flue gas. However, the activated coke particles are prone to friction with the tube wall as they rotate inside the tube, which increases the loss of activated coke. At the same time, the collision between activated coke particles will affect the flow of flue gas, thereby reducing the efficiency of desulfurization and denitrification. Therefore, an absorption tower using activated coke dry desulfurization and denitrification is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides an absorption tower for dry desulfurization and denitrification using activated coke. It aims to improve the existing absorption towers for dry desulfurization and denitrification using activated coke, ensuring that the activated coke particles adsorb harmful substances in the flue gas while shearing and distributing the flue gas evenly to contact the activated coke, and preventing the activated coke from colliding with each other during rotation, which would reduce the absorption efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an absorption tower for desulfurization and denitrification using activated coke dry method, comprising an absorption tower, an inlet pipe fixedly connected to the side wall of the absorption tower, an outlet pipe fixedly connected to the top of the absorption tower via a tower cover, a first diversion plate fixedly connected to the inner wall of the absorption tower, a second diversion plate fixedly connected to the inner wall of the absorption tower, a diversion hole penetrating the surface of the second diversion plate, a support ring fixedly connected to the inner wall of the absorption tower, a placement plate provided on the top of the support ring, a through hole penetrating the surface of the placement plate, a feed pipe fixedly connected to the inner wall of the absorption tower, and a turbulence-inducing component provided inside the absorption tower.

[0007] As a further description of the above technical solution:

[0008] The inner wall of the absorption tower is rotatably connected to a winding roller, the end of which is fixedly connected to a crank handle, and the outer wall of the winding roller is fixedly connected to a connecting rope. The top of the placement plate is fixedly connected to a converging ring, the top of the support ring is provided with a positioning hole, and the bottom of the placement plate is fixedly connected to a positioning rod.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the first splitter plate away from the intake pipe has a notch, and the outer wall of the second splitter plate near the intake pipe has a notch.

[0011] As a further description of the above technical solution:

[0012] The aerodynamic component includes a motor, the output end of which is fixedly connected to a rotating shaft, and the bottom end of the rotating shaft is fixedly connected to an aerodynamic umbrella.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the motor is fixedly connected to the top of the tower cover.

[0015] As a further description of the above technical solution:

[0016] The spoiler umbrella is designed in an inverted V shape.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the positioning rod is adapted to the inner wall of the positioning hole.

[0019] As a further description of the above technical solution:

[0020] The connecting rope is wound around the outer wall of the take-up roller, and the crank is located on the outer wall of the absorption tower.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by combining a first diversion plate, a second diversion plate, a diversion hole, a placement plate, a through hole, a support ring, and a turbulence component, the flue gas is sheared into multiple streams that evenly contact the activated coke particles. At the same time, the contact degree between the activated coke particles and the flue gas is ensured, and friction between the activated coke particles is avoided, which would lead to loss and improve the desulfurization and denitrification effect.

[0023] 2. In this utility model, by providing a winding roller, a crank handle, a connecting rope, a converging ring, a positioning rod, and a positioning hole, the placement plate can be easily moved to the top of the absorption tower, making it convenient to remove and replace the activated coke particles. Attached Figure Description

[0024] Figure 1 This is a left-side view of the main structure of an absorption tower for desulfurization and denitrification using activated coke dry method proposed in this utility model.

[0025] Figure 2 This is a front cross-sectional view of the main structure of an absorption tower for desulfurization and denitrification using the activated coke dry method proposed in this utility model.

[0026] Figure 3 This is a bottom view of the main structure of an absorption tower for desulfurization and denitrification using the activated coke dry method proposed in this utility model.

[0027] Figure 4 This is a side view sectional view of the main structure of an absorption tower for desulfurization and denitrification using activated coke dry method proposed in this utility model.

[0028] Figure 5 This invention proposes an absorption tower for desulfurization and denitrification using activated coke dry process. Figure 4 Enlarged schematic diagram of region A in the middle.

[0029] Legend:

[0030] 1. Absorption tower; 2. Inlet pipe; 3. Outlet pipe; 4. Diverter plate one; 5. Diverter plate two; 6. Diverter hole; 7. Placement plate; 8. Through hole; 9. Support ring; 10. Motor; 11. Shaft; 12. Baffle umbrella; 13. Feed pipe; 14. Take-up roller; 15. Handle; 16. Connecting rope; 17. Converging ring; 18. Positioning rod; 19. Positioning hole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3This utility model provides an embodiment of an absorption tower for desulfurization and denitrification using activated coke dry method, comprising an absorption tower 1. The top of the absorption tower 1 is connected to the tower cover via a flange. An inlet pipe 2 is fixedly connected to the side wall of the absorption tower 1. An outlet pipe 3 is fixedly connected to the top of the absorption tower 1 via the tower cover. A first diversion plate 4 and a second diversion plate 5 are fixedly connected to the inner wall of the absorption tower 1. Diversion holes 6 are formed through the surface of the second diversion plate 5, and several sets of diversion holes 6 are formed, with several groups of diversion holes forming diversions. Holes 6 are evenly distributed on the surfaces of the first diversion plate 4 and the second diversion plate 5. A support ring 9 is fixedly connected to the inner wall of the absorption tower 1. A placement plate 7 is provided on the top of the support ring 9. The placement plate 7 is used to place activated coke particles. A through hole 8 is opened through the surface of the placement plate 7 to facilitate the passage of flue gas and contact with the activated coke particles. A feed pipe 13 is fixedly connected to the inner wall of the absorption tower 1. The feed pipe 13 conveys the activated coke particles to the surface of the placement plate 7 through an external conveying device. A turbulence evacuation component is provided inside the absorption tower 1.

[0033] Reference Figures 3-5 The outer wall of the first diverter 4 away from the air inlet pipe 2 has a notch, and the outer wall of the second diverter 5 near the air inlet pipe 2 has a notch. The first diverter 4 is located at the bottom of the second diverter 5. The notches of the two diverters are arranged in opposite directions. The turbulence assembly includes a motor 10. The outer wall of the motor 10 is fixedly connected to the top of the tower cover. The output end of the motor 10 is fixedly connected to a rotating shaft 11. The bottom end of the rotating shaft 11 is fixedly connected to a turbulence umbrella 12. The turbulence umbrella 12 is arranged in an inverted V shape. The inverted V-shaped turbulence umbrella 12 can increase the time that the flue gas stays on the surface of the activated coke particle layer.

[0034] Reference Figures 3-5 The inner wall of the absorption tower 1 is rotatably connected to a take-up roller 14. There are two sets of take-up rollers 14, and the two sets of take-up rollers 14 are mirror images of each other with the central axis of the absorption tower 1 as the axis of symmetry. The second set of take-up rollers 14, which is not connected to the crank handle 15, is equipped with a coil spring. When the positioning rod 18 is connected to the positioning hole 19, the coil spring is in the extreme tension state. The end of the take-up roller 14 is fixedly connected to the crank handle 15. The crank handle 15 can manually control the rotation of one set of take-up rollers 14. The crank handle 15 is located on the outer wall of the absorption tower 1. The outer wall of the take-up roller 14 is fixedly connected to a connecting rope 16. The connecting rope 16 is wound around the outer wall of the take-up roller 14. The top of the placement plate 7 is fixedly connected to a converging ring 17. The inner surface of the converging ring 17 is inclined downward to facilitate the placement of activated coke particles on the surface of the placement plate 7. The top of the support ring 9 is provided with a positioning hole 19. The bottom of the placement plate 7 is fixedly connected to a positioning rod 18. The outer wall of the positioning rod 18 is adapted to the inner wall of the positioning hole 19.

[0035] Working principle: Flue gas enters the bottom of the absorption tower 1 through the inlet pipe 2. The flue gas is sheared by the diversion holes 6 of the first diversion plate 4, causing it to flow upwards. Some of the flue gas is diverted into multiple streams and flows through the notch of the second diversion plate 5, while the other part of the flue gas flows through the notch of the first diversion plate 4 to the second diversion plate 5, where it is sheared by the diversion holes 6. The flue gas is evenly sheared and distributed upwards, and comes into contact with the activated coke particles on the surface of the placement plate 7 through the evenly distributed through holes 8. As the flue gas continues to flow upwards, it comes into contact with the turbulence umbrella 12. The turbulence umbrella 12 blocks the flow, increasing the contact time between the flue gas and the activated coke particles. Then, the motor 10 is started, and the motor 10 drives the rotating shaft 11 to rotate slowly, causing the turbulence umbrella 12 to rotate. After the turbulence umbrella 12 rotates, it can disturb the flue gas, causing it to flow upwards through the gap between the turbulence umbrella 12 and the inner wall of the absorption tower 1. The activated coke particles flow out of the absorption tower 1 through the outlet pipe 3. When the activated coke particles need to be replaced after several months of use, the tower cover is opened and the crank handle 15 is manually turned in the forward direction. The crank handle 15 controls a set of winding rollers 14 to rotate, so that the positioning rod 18 gradually disengages from the positioning hole 19. When the first set of winding rollers 14 winds up, the coil spring of the second set of winding rollers 14 will be subjected to force and rebound at the same time. The two sets of connecting ropes 16 are gradually wound on the two sets of winding rollers 14, so that the placement plate 7 gradually rises to the tower opening in the absorption tower 1, making it easy to take out the activated coke particles. The above steps are reversed, so that the placement plate 7 and the support ring 9 are fixed inside the absorption tower 1 after the positioning rod 18 is inserted into the positioning hole 19. Finally, the new activated coke particles are fed into the absorption tower 1 through the feed pipe 13 using the external conveying equipment to ensure the effect of desulfurization and denitrification of flue gas.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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. An absorption tower for desulfurization and denitrification using activated coke dry process, comprising an absorption tower (1), wherein an inlet pipe (2) is fixedly connected to the side wall of the absorption tower (1), and an outlet pipe (3) is fixedly connected to the top of the absorption tower (1) via a tower cover, characterized in that: The inner wall of the absorption tower (1) is fixedly connected to a flow divider plate 1 (4), the inner wall of the absorption tower (1) is fixedly connected to a flow divider plate 2 (5), the surface of the flow divider plate 2 (5) is provided with a flow divider hole (6), the inner wall of the absorption tower (1) is fixedly connected to a support ring (9), the top of the support ring (9) is provided with a placement plate (7), the surface of the placement plate (7) is provided with a through hole (8), the inner wall of the absorption tower (1) is fixedly connected to a feed pipe (13), and the inside of the absorption tower (1) is provided with a turbulence assemblies.

2. The absorption tower for desulfurization and denitrification using activated coke dry method according to claim 1, characterized in that: The inner wall of the absorption tower (1) is rotatably connected to a winding roller (14), the end of the winding roller (14) is fixedly connected to a crank handle (15), the outer wall of the winding roller (14) is fixedly connected to a connecting rope (16), the top of the placement plate (7) is fixedly connected to a converging ring (17), the top of the support ring (9) is provided with a positioning hole (19), and the bottom of the placement plate (7) is fixedly connected to a positioning rod (18).

3. The absorption tower for desulfurization and denitrification using activated coke dry method according to claim 1, characterized in that: The first splitter plate (4) has a notch on the outer wall away from the intake pipe (2), and the second splitter plate (5) has a notch on the outer wall near the intake pipe (2).

4. The absorption tower for desulfurization and denitrification using activated coke dry method according to claim 1, characterized in that: The turbulence component includes a motor (10), the output end of which is fixedly connected to a rotating shaft (11), and the bottom end of the rotating shaft (11) is fixedly connected to a turbulence umbrella (12).

5. An absorption tower for desulfurization and denitrification using activated coke dry method according to claim 4, characterized in that: The outer wall of the motor (10) is fixedly connected to the top of the tower cover.

6. The absorption tower for desulfurization and denitrification using activated coke dry method according to claim 4, characterized in that: The spoiler umbrella (12) is arranged in an inverted V shape.

7. The absorption tower for desulfurization and denitrification using activated coke dry method according to claim 2, characterized in that: The outer wall of the positioning rod (18) is adapted to the inner wall of the positioning hole (19).

8. An absorption tower for desulfurization and denitrification using activated coke dry method according to claim 2, characterized in that: The connecting rope (16) is wound around the outer wall of the take-up roller (14), and the crank (15) is located on the outer wall of the absorption tower (1).

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