A dry desulfurization regeneration reaction tower

Abstract

This utility model relates to the field of dry desulfurization and discloses a dry desulfurization regeneration reaction tower, including a tower body. A rotating support is rotatably connected inside the tower body. A top baffle is fixedly connected inside the rotating support. A side baffle is fixedly connected inside the rotating support. A bottom baffle is fixedly connected inside the side baffle. A power assembly is fixedly connected to the inner wall of the top of the tower body, and the power assembly drives the top baffle to rotate. A fixed column is fixedly connected to the inner side of the tower body. A desulfurization cylinder is fixedly connected to the inner side of the fixed column. A top plate is fixedly connected to the top of the desulfurization cylinder. In this utility model, by setting up mechanisms such as the rotating support, top baffle, bottom baffle, and side baffle, and activating a servo motor to drive the rotating support to rotate, the flue gas can only pass through one of the upper and lower desulfurization cylinders for desulfurization and regeneration. The other desulfurization cylinder undergoes desulfurization and regeneration, thus enabling rapid switching of the solid adsorbent and achieving high working efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dry desulfurization, and in particular to a dry desulfurization regeneration reaction tower. Background Technology

[0002] Dry desulfurization is a flue gas desulfurization technology that, unlike common wet desulfurization, maintains the flue gas in a dry state during the desulfurization process. This technology mainly utilizes solid or powdered desulfurizing agents (such as limestone, calcium hydroxide, activated carbon, etc.) to absorb sulfur dioxide in the flue gas. Dry desulfurization technology has significant advantages such as simple equipment, small footprint, low water consumption, no wastewater discharge, and strong adaptability to flue gas temperature and humidity.

[0003] To efficiently remove sulfur dioxide from industrial flue gas from coal-fired power plants, steel mills, and other sources, a dry desulfurization and regeneration reaction tower is required.

[0004] The current working principle of dry desulfurization regeneration reactor is based on the contact reaction between SO2 in the gas phase and solid absorbent. The absorbent adsorbs and fixes SO2 in the flue gas, thereby achieving desulfurization. However, as the reaction proceeds, the absorbent gradually becomes saturated and can no longer absorb flue gas. Current equipment requires the solid absorbent to be transported to a regeneration unit to heat the fixed absorbent, release the adsorbed SO2, and restore its activity before being transported to the desulfurization tower for absorption. During the process of discharging the saturated solid absorbent and adding the reactivated solid absorbent, the dry desulfurization tower will be unable to perform desulfurization operations for a period of time, resulting in low working efficiency. Therefore, a dry desulfurization regeneration reactor is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a dry desulfurization regeneration reaction tower, which aims to improve the problem that in the existing technology, the dry desulfurization tower will be unable to carry out desulfurization operations for a period of time during the process of discharging saturated solid absorbent and adding solid absorbent to restore its activity, resulting in low working efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dry desulfurization regeneration reaction tower, comprising a tower body, a rotating support rotatably connected inside the tower body, a top baffle fixedly connected inside the rotating support, a side baffle fixedly connected inside the rotating support, a bottom baffle fixedly connected inside the side baffle, a power assembly fixedly connected to the inner wall of the top of the tower body, the power assembly being used to drive the top baffle to rotate, a fixed column fixedly connected to the inner side of the tower body, a desulfurization cylinder fixedly connected to the inner side of the fixed column, a top plate fixedly connected to the top of the desulfurization cylinder, a bottom plate fixedly connected to the bottom of the desulfurization cylinder, and side plates fixedly connected to the outer periphery of the desulfurization cylinder. A central passage groove is provided inside the top baffle, bottom baffle, top plate, and bottom plate; a side passage groove is provided inside the side baffle and bottom baffle; a sulfur discharge pipe is provided inside the fixed column; and a sulfur regeneration assembly is provided inside the desulfurization cylinder, the sulfur regeneration assembly being used to release sulfur fixed in the adsorbent.

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

[0008] The sulfur regeneration assembly includes a filter screen, which is fixedly connected to the outside of the desulfurization cylinder. A second support is fixedly connected to the bottom of the filter screen. A rotating motor is fixedly connected inside the second support. A rotating shaft is fixedly connected to the output shaft at the top of the rotating motor. An auger is fixedly connected to the outside of the rotating shaft. A transmission pipe is rotatably connected to the outside of the auger. A transmission inlet is opened on the side of the bottom end of the transmission pipe. A supporting filter plate is fixedly connected to the outside of the rotating shaft. A connecting circular plate is fixedly connected to the outside of the supporting filter plate. An agitator is rotatably connected inside the connecting circular plate. A rotating gear is fixedly connected to the top of the agitator. An internal gear meshes with the outside of the rotating gear. An electric heating wire is provided on the outside of the desulfurization cylinder.

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

[0010] An air inlet is provided at the bottom right side of the tower body, and an exhaust outlet is provided at the top right side of the tower body.

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

[0012] The power assembly includes a bracket, the top of which is fixedly connected to the inner wall of the top of the tower body. A servo motor is fixedly connected inside the bracket, and the top of the top baffle is fixedly connected to the bottom output shaft of the servo motor.

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

[0014] The top surface of the top plate is in contact with the bottom surface of the top baffle, and the bottom surface of the bottom plate is in contact with the top surface of the bottom baffle.

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

[0016] The inner side of the side plate and the outer side of the side baffle are in contact, and the side surfaces of both the side plate and the side baffle are set as conical surfaces that are smaller at the top and larger at the bottom.

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

[0018] One end of the sulfur discharge pipe is fixedly connected to the outside of the desulfurization cylinder, and the outside of the sulfur discharge pipe is penetrated and fixedly connected to the side wall of the tower body.

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

[0020] The side of the filter screen is a conical surface that is larger at the top and smaller at the bottom, and the bottom end of the transmission pipe is fixedly connected to the inner wall of the bottom end of the filter screen.

[0021] As a further description of the above technical solution:

[0022] The top of the internal gear is fixedly connected to the bottom surface of the top plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by setting up a rotating bracket, top baffle, bottom baffle, side baffle and other mechanisms, the servo motor is turned on to drive the rotating bracket to rotate, so that the flue gas can only pass through one of the upper and lower desulfurization cylinders, and the other desulfurization cylinder is used for desulfurization and regeneration. This allows for rapid switching of solid adsorbent and high working efficiency.

[0025] 2. In this utility model, by setting internal gears, rotating gears, augers and other mechanisms, the saturated solid adsorbent is stirred and the solid adsorbent at the bottom is transferred to the top, so that the solid adsorbent can be heated evenly and release sulfur dioxide quickly and evenly, ensuring the subsequent adsorption efficiency. Attached Figure Description

[0026] Figure 1 This is a frontal schematic diagram of a dry desulfurization regeneration reaction tower proposed in this utility model.

[0027] Figure 2 This is a front cross-sectional view of the tower body of a dry desulfurization regeneration reaction tower proposed in this utility model.

[0028] Figure 3 This is a front view of the rotating support of a dry desulfurization regeneration reaction tower proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the bottom surface of the rotating support of a dry desulfurization regeneration reaction tower proposed in this utility model;

[0030] Figure 5 This is a front cross-sectional view of the desulfurization cylinder of a dry desulfurization regeneration reaction tower proposed in this utility model.

[0031] Figure 6 This is a front cross-sectional view of the transmission pipe of a dry desulfurization regeneration reaction tower proposed in this utility model.

[0032] Legend:

[0033] 1. Tower body; 2. Air inlet; 3. Exhaust outlet; 4. Rotating support; 5. Top baffle; 6. Side baffle; 7. Bottom baffle; 8. Support 1; 9. Servo motor; 10. Fixed column; 11. Desulfurization cylinder; 12. Top plate; 13. Bottom plate; 14. Side plate; 15. Central passage groove; 16. Side passage groove; 17. Desulfurization pipe; 18. Filter screen; 19. Support 2; 20. Rotating motor; 21. Rotating shaft; 22. Screw auger; 23. Transmission pipe; 24. Transmission inlet; 25. Support filter plate; 26. Connecting circular plate; 27. Stirring blade; 28. Rotating gear; 29. ​​Internal gear; 30. Heating wire. Detailed Implementation

[0034] 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.

[0035] Reference Figures 1-3This utility model provides an embodiment of a dry desulfurization regeneration reaction tower, comprising a tower body 1, an air inlet 2 at the bottom right side of the tower body 1 for discharging pretreated flue gas into the tower body 1, and an exhaust outlet 3 at the top right side of the tower body 1 for discharging the treated purified gas from the tower body 1. A rotating support 4 is rotatably connected inside the tower body 1, with four sets of support rods equidistantly distributed in a ring at the connection between the rotating support 4 and the tower body 1. Two sets of top baffles 5 are fixedly connected inside the rotating support 4, arranged symmetrically. Two sets of side baffles 6 are fixedly connected inside the rotating support 4, arranged symmetrically. A bottom baffle 7 is fixedly connected inside the side baffles 6. A rotating mechanism providing rotational power is fixedly connected to the inner wall of the top of the tower body 1. The power component is used to drive the top baffle 5 on the upper side to rotate. The power component includes a bracket 8 for fixed connection. The top of the bracket 8 is fixedly connected to the inner wall of the top of the tower body 1. A servo motor 9 that provides rotational power is fixedly connected inside the bracket 8. The top of the top baffle 5 is fixedly connected to the bottom output shaft of the servo motor 9. When the servo motor 9 is turned on, the bottom output shaft of the servo motor 9 can accurately drive the top baffle 5 to rotate a certain angle. A fixed column 10 for fixed connection is fixedly connected inside the tower body 1. A desulfurization cylinder 11 is fixedly connected inside the fixed column 10. A solid adsorbent that can adsorb sulfur dioxide in flue gas is placed inside the desulfurization cylinder 11. There are two sets of desulfurization cylinders 11, which are symmetrically arranged above and below. Four sets of fixed columns 10 are equidistantly arranged in a ring around the outer periphery of each set of desulfurization cylinders 11.

[0036] Reference Figure 3 and Figure 5A top plate 12 is fixedly connected to the top of the desulfurization cylinder 11, and a bottom plate 13 is fixedly connected to the bottom of the desulfurization cylinder 11. Side plates 14 are fixedly connected to the outer periphery of the desulfurization cylinder 11. Both the side plates 14 and the side baffles 6 have conical surfaces that are smaller at the top and larger at the bottom, allowing flue gas to enter the interior of the desulfurization cylinder 11 upwards along the slope. A central passage groove 15 is provided inside the top baffle 5, bottom baffle 7, top plate 12, and bottom plate 13. The central passage groove 15 is a fan-shaped structure with an angle of 45 degrees, and four sets are provided at 45-degree intervals. Side passage grooves 16 are provided inside the side baffles 6 and bottom baffles 7, and four sets are provided at 45-degree intervals. The top surface of the top plate 12 contacts the bottom surface of the top baffle 5, and the bottom surface of the bottom plate 13 contacts the top surface of the bottom baffle 7. The inner sides of the side plates 14 and the side baffles... When the outer sides of the upper desulfurization cylinder 11 are in contact, the top plate 12 and top baffle 5, as well as the middle passage groove 15 on the bottom plate 13 and bottom baffle 7, will simultaneously overlap. At this time, the top plate 12 and top baffle 5, as well as the middle passage groove 15 on the bottom plate 13 and bottom baffle 7 of the lower desulfurization cylinder 11, will simultaneously close. The side plate 14 and side baffle 6 of the upper desulfurization cylinder 11 will close, while the side plate 14 and side baffle 6 of the lower desulfurization cylinder 11 will open. A sulfur discharge pipe 17 is installed inside the fixed column 10. One end of the sulfur discharge pipe 17 is fixedly connected to the outer side of the desulfurization cylinder 11. The outer side of the sulfur discharge pipe 17 passes through and is fixedly connected to the side wall of the tower body 1. A solenoid valve is installed inside the sulfur discharge pipe 17. When the desulfurization cylinder 11 is heated, the solenoid valve inside the sulfur discharge pipe 17 is opened to discharge the sulfur dioxide released inside the desulfurization cylinder 11.

[0037] Reference Figures 5-6The desulfurization cylinder 11 is equipped with a sulfur regeneration component, which releases the sulfur fixed in the adsorbent. The sulfur regeneration component includes a filter screen 18, which allows gas to pass through but prevents solid adsorbent from passing through. The filter screen 18 is fixedly connected to the inside of the desulfurization cylinder 11. A support bracket 19 is fixedly connected to the bottom of the filter screen 18 for this purpose. A rotating motor 20, which provides rotational power, is fixedly connected inside the support bracket 19. A rotating shaft 21 is fixedly connected to the top output shaft of the rotating motor 20. When the rotating motor 20 is turned on, the top output shaft of the rotating motor 20 drives the rotating shaft 21 to rotate. An auger 22 is fixedly connected to the outside of the rotating shaft 21. The rotation of the auger 22 can transfer the solid adsorbent at the bottom to the top of the auger 22. A transmission pipe 23 is rotatably connected to the outside of the auger 22. A transmission inlet 24 is opened on the side of the bottom end of the transmission pipe 23 to facilitate the entry of solid adsorbent. The side of the filter screen 18 is a conical surface that is larger at the top and smaller at the bottom. The bottom end of the transmission pipe 23 is fixedly connected to the inner wall of the bottom end of the filter screen 18. The solid adsorbent on the filter screen 18 moves along the inclined plane towards the center and enters the transmission pipe 23. A supporting filter plate 25 is fixedly connected to the outer periphery of the rotating shaft 21. The supporting filter plate 25 allows gas to pass through, but the solid adsorbent cannot, reducing wear on gear components. A connecting circular plate 26 is fixedly connected to the outer periphery of the supporting filter plate 25, which serves as a fixed connection. A stirring blade 27 is rotatably connected inside the connecting circular plate 26. The connecting circular plate 26 can drive the stirring blade 27 to rotate around the center of the connecting circular plate 26. 7 is provided with four sets, arranged in a ring at equal intervals and connected to the circular plate 26. The top of the stirring blade 27 is fixedly connected to the rotating gear 28, and the outer circumference of the rotating gear 28 is meshed with the inner gear 29. When the rotating gear 28 rotates around the rotating shaft 21, the inner gear 29 can drive the stirring blade 27 to rotate. The top of the inner gear 29 is fixedly connected to the bottom surface of the top plate 12. The outer circumference of the desulfurization cylinder 11 is provided with an electric heating wire 30 to heat the solid adsorbent inside the desulfurization cylinder 11, so that the solid adsorbent releases the absorbed sulfur dioxide.

[0038] Working principle: When continuous desulfurization of flue gas is required, the flue gas enters the interior of the tower body 1 through the inlet 2. At this time, the top plate 12 and the middle channel 15 on the top baffle 5 of the lower desulfurization cylinder 11 are connected, and the middle channel 15 on the bottom plate 13 and the bottom baffle 7 are connected. The side baffle 6 and the side channel 16 on the side plate 14 are sealed. Similarly, the top plate 12 and the middle channel 15 on the top baffle 5 of the upper desulfurization cylinder 11 are sealed, and the middle channel 15 on the bottom plate 13 and the bottom baffle 7 are sealed. The side baffle 6 and the side channel 16 on the side plate 14 are connected. At this time, the flue gas passes through the interior of the lower desulfurization cylinder 11, is adsorbed by the solid adsorbent, and enters the top of the tower body 1 through the side channel 16 on the outer side plate 14 and the side baffle 6 of the upper desulfurization cylinder 11, and is discharged from the exhaust port 3. When the solid adsorbent inside the lower desulfurization cylinder 11 is saturated, the servo motor 9 is activated. The servo motor 9 drives the top baffle 5 to rotate 45 degrees. The top baffle 5 drives the rotating bracket 4 to rotate, and the rotating bracket 4 drives all the baffles to rotate 45 degrees. At this time, the top plate 12 at the top of the upper desulfurization cylinder 11 and the middle channel 15 on the top baffle 5 are connected, and the bottom plate 13 at the bottom and the middle channel 15 on the bottom baffle 7 are connected. The side baffle 6 is sealed with the side channel 16 on the side plate 14, while the top plate 12 and the top baffle 5 at the top of the lower desulfurization cylinder 11 are sealed. The upper middle channel 15 is sealed, and the bottom plate 13 and bottom baffle 7 are sealed with the middle channel 15. The side baffle 6 is connected to the side channel 16 on the side plate 14. The flue gas moves upward from the side plate 14 and the side channel 16 on the side baffle 6 of the bottom desulfurization cylinder 11, passes through the inside of the upper desulfurization cylinder 11, is adsorbed by the solid adsorbent, and is discharged from the exhaust port 3. The outer periphery heating wire 30 of the bottom desulfurization cylinder 11 is turned on to heat the solid adsorbent and release sulfur dioxide, so that the switching of the solid adsorbent can be completed quickly and the working efficiency is high. When you want to increase the release rate of the solid adsorbent, turn on the rotating motor 20. The rotating motor 20 drives the rotating shaft 21 to rotate. The rotating shaft 21 drives the stirring blade 27 to rotate around the rotating shaft 21 through the supporting filter plate 25 and the connecting circular plate 26. At this time, the internal gear 29 will drive the rotating gear 28 to rotate itself, so that the fixed adsorbent is stirred. At the same time, the auger 22 transfers the solid adsorbent at the bottom to the top, so that the solid adsorbent is heated evenly and can release sulfur dioxide quickly.

[0039] 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. A dry desulphurization regeneration reaction tower comprising a tower body (1), characterized in that: The tower body (1) is rotatably connected to a rotating bracket (4), and a top baffle (5) is fixedly connected inside the rotating bracket (4). A side baffle (6) is fixedly connected inside the rotating bracket (4), and a bottom baffle (7) is fixedly connected inside the side baffle (6). A power assembly is fixedly connected to the inner wall of the top of the tower body (1), and the power assembly is used to drive the top baffle (5) to rotate. A fixed column (10) is fixedly connected to the inner side of the tower body (1), and a desulfurization cylinder (11) is fixedly connected to the inner side of the fixed column (10). The top of the desulfurization cylinder (11) is fixedly connected to... A top plate (12) is connected to the desulfurization cylinder (11), a bottom plate (13) is fixedly connected to the bottom end of the desulfurization cylinder (11), a side plate (14) is fixedly connected to the outer periphery of the desulfurization cylinder (11), a central passage groove (15) is opened inside the top baffle (5), the bottom baffle (7), the top plate (12) and the bottom plate (13), a side passage groove (16) is opened inside the side baffle (6) and the bottom baffle (7), a sulfur discharge pipe (17) is provided inside the fixed column (10), and a sulfur regeneration component is provided inside the desulfurization cylinder (11). The sulfur regeneration component is used to release the sulfur fixed in the adsorbent.

2. A dry desulphurization regeneration reaction tower according to claim 1, characterized in that: The sulfur regeneration assembly includes a filter screen (18), which is fixedly connected to the outside of the desulfurization cylinder (11). A support frame (19) is fixedly connected to the bottom of the filter screen (18). A rotating motor (20) is fixedly connected inside the support frame (19). A rotating shaft (21) is fixedly connected to the top output shaft of the rotating motor (20). An auger (22) is fixedly connected to the outside of the rotating shaft (21). A transmission pipe (23) is rotatably connected to the outside of the auger (22). A transmission inlet (24) is provided on the side of the bottom end of the transmission pipe (23). A support filter plate (25) is fixedly connected to the outer periphery of the rotating shaft (21). A connecting circular plate (26) is fixedly connected to the outer periphery of the support filter plate (25). An stirring blade (27) is rotatably connected inside the connecting circular plate (26). A rotating gear (28) is fixedly connected to the top of the stirring blade (27). An internal gear (29) meshes with the outer periphery of the rotating gear (28). An electric heating wire (30) is provided on the outer periphery of the desulfurization cylinder (11).

3. A dry desulphurization regeneration reaction tower according to claim 1, characterized in that: An air inlet (2) is provided at the bottom right side of the tower body (1), and an exhaust outlet (3) is provided at the top right side of the tower body (1).

4. A dry desulphurization regeneration reaction tower according to claim 1, characterized in that: The power assembly includes a bracket (8), the top of which is fixedly connected to the inner wall of the top of the tower body (1), and a servo motor (9) is fixedly connected inside the bracket (8). The top of the top baffle (5) is fixedly connected to the bottom output shaft of the servo motor (9).

5. A dry desulphurization regeneration reaction tower according to claim 1, characterized in that: The top surface of the top plate (12) is in contact with the bottom surface of the top baffle (5), and the bottom surface of the bottom plate (13) is in contact with the top surface of the bottom baffle (7).

6. A dry desulphurization regeneration reaction tower according to claim 1, characterized in that: The inner side of the side plate (14) and the outer side of the side baffle (6) are in contact, and the sides of both the side plate (14) and the side baffle (6) are set as conical surfaces with a smaller upper surface and a larger lower surface.

7. A dry desulphurization regeneration reaction tower according to claim 1, characterized in that: One end of the sulfur discharge pipe (17) is fixedly connected to the outside of the desulfurization cylinder (11), and the outside of the sulfur discharge pipe (17) is penetrated and fixedly connected to the side wall of the tower body (1).

8. A dry desulfurization regeneration reaction tower according to claim 2, characterized in that: The side of the filter screen (18) is a conical surface that is larger at the top and smaller at the bottom, and the bottom end of the transmission pipe (23) is fixedly connected to the inner wall of the bottom end of the filter screen (18).

9. A dry desulphurization regeneration reaction tower according to claim 2, characterized in that: The top of the internal gear (29) is fixedly connected to the bottom surface of the top plate (12).

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