A flue gas desulfurization device

Abstract

This utility model relates to the field of flue gas desulfurization technology, specifically a flue gas desulfurization device, including a desulfurization cylinder with a rotating cylinder mounted at the top center via a rotating mechanism; a bottom cylinder detachably connected to the bottom end of the rotating cylinder, with an air jet mechanism between the rotating cylinder and the bottom cylinder; and a sealing cover detachably connected to the top center of the rotating cylinder, with a communication mechanism between the sealing cover and the air jet mechanism. This utility model, through its structural design of synchronously rotating the bottom cylinder and the rotating cylinder, creates a rotating airflow in the desulfurization liquid via the nozzle, simultaneously driving the stirring rod to rotate and stir. This enhances the gas-liquid mass transfer effect and achieves multiple functions of gas dispersion and particulate matter interception through the filter screen, solving the problem of low desulfurization efficiency in traditional static gas distribution methods and significantly improving the desulfurization reaction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of flue gas desulfurization technology, specifically to a flue gas desulfurization device. Background Technology

[0002] When sulfur in coal is burned, it produces a large amount of sulfur dioxide, which is emitted into the atmosphere. Sulfur dioxide is a toxic gas, and its emission can have serious environmental impacts, such as acid rain and air pollution. Therefore, flue gas needs to be desulfurized by a flue gas desulfurization device before it is emitted.

[0003] A wet flue gas desulfurization device, as disclosed in authorization announcement number CN222788895U, includes a desulfurization box. The desulfurization box is characterized by having an inlet pipe fixedly connected to its upper end, an exhaust pipe fixedly connected to its upper end, an outlet pipe fixedly connected to its bottom, an outlet valve installed on the exhaust pipe, and a flue gas cooling device arranged on the left side of the desulfurization box, the outlet of which is fixedly connected to the inlet of a flue gas guide pipe. The advantages of this utility model, achieved by adopting the above technical solution, are: simple structure, convenient use, and strong practicality.

[0004] Although the aforementioned patent includes gears and racks inside the desulfurization box to control the rotation of the stirring rod, these gears and racks are exposed to the corrosive environment of wet desulfurization for a long time. The desulfurization liquid is usually weakly acidic or alkaline and contains corrosive ions, which will accelerate the electrochemical corrosion of the gears and racks. During the dynamic meshing process, the corrosion products will aggravate mechanical wear, leading to a decrease in transmission accuracy or even jamming. Utility Model Content

[0005] The purpose of this invention is to provide a flue gas desulfurization device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A flue gas desulfurization device, comprising

[0008] The desulfurization cylinder has a rotating cylinder installed at the top center via a rotating mechanism;

[0009] The bottom cylinder is detachably connected to the bottom end of the rotating cylinder, and an air jet mechanism is provided between the rotating cylinder and the bottom cylinder;

[0010] A sealing cap is detachably connected to the top center of the rotating cylinder, and a communication mechanism is provided between the sealing cap and the jet mechanism.

[0011] Preferably, the rotating mechanism includes a rotating groove penetrating the middle of the top of the desulfurization cylinder, and a gear ring detachably connected to the outer periphery of the upper end of the rotating cylinder. The gear ring is rotatably connected to the rotating groove through a bearing. A motor is fixedly connected to the top right side of the desulfurization cylinder through a frame, and the output shaft of the motor is fixedly connected to a gear that meshes with the gear ring.

[0012] Preferably, the jetting mechanism includes several fixed seats fixedly connected to the outside of the rotating cylinder and the bottom cylinder on the opposite side, and a filter screen fixedly connected to the outer wall of the bottom cylinder. The upper and lower corresponding fixed seats are fixedly connected by bolts. A pipe groove is provided through the middle of the rotating cylinder and communicates with the inside of the bottom cylinder. A jet pipe is provided inside the pipe groove.

[0013] Preferably, the communication mechanism includes a circular groove formed at the middle of the top of the rotating cylinder, the sealing cover is fixedly connected to the circular groove by bolts, the middle of the sealing cover is fixedly connected to the top of the nozzle, the top of the nozzle extends to the outside of the sealing cover and is fixedly connected to a rotary joint, the fixed end of the rotary joint is horizontally fixedly connected to an air inlet pipe, a liquid inlet pipe is fixedly connected to the top left side of the desulfurization cylinder, and a liquid outlet pipe is fixedly connected to the middle of the bottom end of the desulfurization cylinder.

[0014] Preferably, the top two sides of the gear ring are provided with slots, and the outer walls of the rotating cylinder are symmetrically fixedly connected with locking blocks that match the slots, and the locking blocks and the slots are fixedly connected by bolts.

[0015] Preferably, the rotating cylinder has an annular groove extending inward from the middle, and several transverse stirring rods are evenly distributed on the annular groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This flue gas desulfurization device, through a structural design that drives the bottom cylinder to rotate synchronously, causes the nozzle to form a rotating airflow in the desulfurization liquid, while simultaneously driving the stirring rod to rotate and stir. This not only enhances the gas-liquid mass transfer effect, but also achieves multiple functions of gas dispersion and particulate matter interception through the filter screen, solving the problem of low desulfurization efficiency in traditional static gas distribution methods and significantly improving the desulfurization reaction efficiency.

[0018] 2. This flue gas desulfurization device completely isolates the transmission mechanism from the corrosive working environment through the external transmission cooperation of the gear ring and gears. At the same time, it adopts a detachable connection method of the card block and card slot, which not only ensures the stable drive of the rotating drum, but also facilitates disassembly and maintenance in the later stage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0020] Figure 2This is a schematic cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 For the present utility model Figure 2 Enlarged diagram of point B in the middle.

[0023] In the diagram: 1. Desulfurization cylinder; 2. Rotating cylinder; 3. Bottom cylinder; 4. Sealing cover; 5. Rotating groove; 6. Gear ring; 7. Frame; 8. Motor; 9. Gear; 10. Fixed base; 11. Filter screen; 12. Pipe groove; 13. Spray pipe; 14. Circular groove; 15. Rotary joint; 16. Air inlet pipe; 17. Liquid inlet pipe; 18. Liquid outlet pipe; 19. Slot; 20. Locking block; 21. Annular groove; 22. Stirring rod. Detailed Implementation

[0024] 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.

[0025] like Figure 1-4 As shown, this utility model provides a technical solution:

[0026] A flue gas desulfurization device includes a desulfurization cylinder 1, a rotating cylinder 2 located at the top center of the cylinder 1 via a rotating mechanism, the rotating mechanism including a rotating groove 5 penetrating the top center of the desulfurization cylinder 1, and a gear ring 6 detachably connected to the outer periphery of the upper end of the rotating cylinder 2. The gear ring 6 is rotatably connected to the rotating groove 5 via a bearing. A motor 8 is fixedly connected to the top right side of the desulfurization cylinder 1 via a frame 7. The output shaft of the motor 8 is fixedly connected to a gear 9 meshing with the gear ring 6. A bottom cylinder 3 is detachably connected to the bottom end of the rotating cylinder 2. An air jet mechanism is provided between the rotating cylinder 2 and the bottom cylinder 3. The air jet mechanism includes several fixed seats 10 fixedly connected to the outer side of the rotating cylinder 2 and the bottom cylinder 3 on opposite sides, and a filter screen 11 fixedly connected to the outer wall of the bottom cylinder 3. The upper and lower corresponding fixed seats 10 are fixedly connected by bolts. A pipe groove 12 penetrating the middle of the rotating cylinder 2 and communicating with the inside of the bottom cylinder 3 is provided. A spray pipe 13 is provided inside the pipe groove 12, and a seal is provided. The cover 4 is detachably connected to the middle of the top of the rotating cylinder 2. A communication mechanism is provided between the sealing cover 4 and the jet mechanism. The communication mechanism includes a circular groove 14 opened in the middle of the top of the rotating cylinder 2. The sealing cover 4 is fixedly connected to the circular groove 14 by bolts. The middle of the sealing cover 4 is fixedly connected to the top of the nozzle 13. The top of the nozzle 13 extends to the outside of the sealing cover 4 and is fixedly connected to a rotary joint 15. The fixed end of the rotary joint 15 is horizontally fixedly connected to an air inlet pipe 16. An inlet pipe 17 is fixedly connected to the top of the left side of the desulfurization cylinder 1. An outlet pipe 18 is fixedly connected to the middle of the bottom end of the desulfurization cylinder 1. The top of the toothed ring 6 is provided with slots 19 on both sides. The outer walls of the rotating cylinder 2 are symmetrically fixedly connected with blocks 20 that match the slots 19. The blocks 20 and the slots 19 are fixedly connected by bolts. An annular groove 21 is opened inward in the middle of the rotating cylinder 2. Several horizontal stirring rods 22 are evenly distributed on the annular groove 21.

[0027] In this embodiment, the structure design of the rotating cylinder 2 driving the bottom cylinder 3 to rotate synchronously enables the nozzle 13 to form a rotating airflow in the desulfurization liquid, while driving the stirring rod 22 to rotate and stir. This not only enhances the gas-liquid mass transfer effect, but also realizes the multiple functions of gas dispersion and particulate matter interception through the filter screen 11. This solves the problem of low desulfurization efficiency in the traditional static gas distribution method and significantly improves the desulfurization reaction efficiency.

[0028] Furthermore, the external transmission of the gear ring 6 and gear 9 completely isolates the transmission mechanism from the corrosive working environment. At the same time, the detachable connection between the locking block 20 and the locking slot 19 ensures stable driving of the rotating cylinder 2 and facilitates disassembly and maintenance in the future.

[0029] Working principle: During operation, desulfurization solution is replenished through inlet pipe 17, and then sulfur-containing waste gas is introduced through inlet pipe 16. The waste gas enters the bottom cylinder 3 through nozzle 13. Simultaneously, motor 8 is started, driving gear 9 to rotate. Gear 9 meshes with gear ring 6, causing rotating cylinder 2 to rotate within rotating groove 5 via bearings. Rotating cylinder 2 drives bottom cylinder 3 to rotate synchronously through fixed seat 10, creating a rotating airflow in the desulfurization liquid through nozzle 13. After being dispersed by filter screen 11, the waste gas fully contacts and reacts with the desulfurization liquid. At the same time, filter screen 11 intercepts particulate matter in the waste gas in bottom cylinder 3. Rotating cylinder 2 drives stirring rod 22 on annular groove 21 to rotate and stir. The desulfurization liquid is stirred, and the purified gas is discharged from the top of the desulfurization cylinder 1. The reaction waste liquid is discharged from the drain pipe 18. The rotary joint 15 ensures that the air inlet pipe 16 remains fixed and supplies gas when the rotating cylinder 2 rotates. During later maintenance, the air inlet pipe 16 is disassembled from the external waste gas pipeline, and then the rotating cylinder 2 is separated from the toothed ring 6. The rotating cylinder 2 is lifted from the top of the desulfurization cylinder 1 and removed. After removal, the bottom cylinder 3 can be disassembled to clean the filter screen 11. When the spray pipe 13 needs to be cleaned, the sealing cover 4 can also be disassembled for maintenance. Efficient desulfurization is achieved through the synergistic effect of rotating jet and mechanical stirring. At the same time, the modular design facilitates the disassembly and maintenance of each component.

[0030] In the specific implementation of this technical solution, the desulfurization tank 1 can be equipped with conventional desulfurization solutions (such as limestone slurry, sodium hydroxide solution, or ammonia water, etc.). Although these desulfurization solutions are not described in detail in the technical solution, they are alkaline absorbents that can be conventionally selected by those skilled in the art based on actual desulfurization needs. Their concentration and pH adjustment follow well-known techniques in the field and do not affect the implementation of the core innovation of this solution. In practical applications, the desulfurization solution is mainly used to neutralize sulfur dioxide in flue gas, but its specific type and concentration parameters can be adjusted according to the flue gas composition and treatment requirements, all of which fall within the reasonable extension range of this technical solution.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flue gas desulfurization device characterized by comprising: include The desulfurization cylinder (1) has a rotating cylinder (2) installed at the top center via a rotating mechanism. The bottom cylinder (3) is detachably connected to the bottom end of the rotating cylinder (2), and an air jet mechanism is provided between the rotating cylinder (2) and the bottom cylinder (3); A sealing cover (4) is detachably connected to the top center of the rotating cylinder (2), and a communication mechanism is provided between the sealing cover (4) and the jet mechanism.

2. A flue gas desulphurization device according to claim 1, characterized in that: The rotating mechanism includes a rotating groove (5) that penetrates the middle of the top of the desulfurization cylinder (1) and a gear ring (6) that is detachably connected to the outer periphery of the upper end of the rotating cylinder (2). The gear ring (6) is rotatably connected to the rotating groove (5) through a bearing. A motor (8) is fixedly connected to the top right side of the desulfurization cylinder (1) through a frame (7). The output shaft of the motor (8) is fixedly connected to a gear (9) that meshes with the gear ring (6).

3. A flue gas desulphurization device according to claim 1, characterized in that: The jetting mechanism includes several fixed seats (10) fixedly connected to the outside of the rotating cylinder (2) and the bottom cylinder (3) on opposite sides, and a filter screen (11) fixedly connected to the outer wall of the bottom cylinder (3). The upper and lower fixed seats (10) are fixedly connected by bolts. A pipe groove (12) is opened through the middle of the rotating cylinder (2) and communicates with the inside of the bottom cylinder (3). A spray pipe (13) is provided inside the pipe groove (12).

4. A flue gas desulphurization device according to claim 3, characterized in that: The communication mechanism includes a circular groove (14) opened at the middle of the top of the rotating cylinder (2). The sealing cover (4) is fixedly connected to the circular groove (14) by bolts. The middle of the sealing cover (4) is fixedly connected to the top of the nozzle (13). The top of the nozzle (13) extends to the outside of the sealing cover (4) and is fixedly connected to a rotary joint (15). The fixed end of the rotary joint (15) is fixedly connected to an air inlet pipe (16) laterally. A liquid inlet pipe (17) is fixedly connected to the top left side of the desulfurization cylinder (1). A liquid outlet pipe (18) is fixedly connected to the middle bottom of the desulfurization cylinder (1).

5. A flue gas desulphurization device according to claim 2, characterized in that: The top two sides of the gear ring (6) are provided with slots (19), and the outer walls of the rotating cylinder (2) are symmetrically fixedly connected with locking blocks (20) that match the slots (19). The locking blocks (20) and the slots (19) are fixedly connected by bolts.

6. A flue gas desulphurization device according to claim 1, characterized in that: The rotating cylinder (2) has an annular groove (21) inwardly extending from the middle, and several horizontal stirring rods (22) are evenly distributed on the annular groove (21).

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