Flue gas desulfurization and recovery equipment
By introducing dual flue gas channels and butterfly valve assemblies into the spray desulfurization tower, the problem of production interruption during spray desulfurization tower maintenance was solved, enabling uninterrupted equipment maintenance and ensuring continuous production of the plant.
Patent Information
- Application Number
- CN202422660434.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The existing spray desulfurization tower requires the equipment to be shut down for maintenance, which leads to production interruption and prevents continuous operation of the factory.
A dual flue gas passage structure was designed, employing butterfly valve assemblies and inspection ports, allowing the other passage to continue operating while one passage is being maintained, thus achieving uninterrupted maintenance.
This allows the desulfurization tower to continue operating during maintenance without affecting factory production, thus improving equipment availability and maintenance efficiency.
Smart Images
Figure CN223570393U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to desulfurization recovery equipment technical field, concretely is a kind of flue gas desulfurization recovery equipment. BACKGROUND
[0002] In the existing flue gas emission purification of engineering, the sulfur in flue gas is often purified and recovered. The existing flue gas sulfur purification and recovery commonly used is a spray desulfurization tower. The spray desulfurization tower is a commonly used flue gas desulfurization equipment, and its main working principle is to contact and react flue gas with spray liquid, so that sulfur oxides (such as sulfur dioxide) in flue gas are converted into compounds soluble in water, thereby realizing the effect of desulfurization recovery. This technology is widely used in industrial fields, such as power plants, petrochemical enterprises, etc., to reduce harmful substances in flue gas emission and protect the environment.
[0003] In the actual use of the existing spray desulfurization tower, the applicant finds that: in the use and maintenance of the existing desulfurization tower, personnel need to open the desulfurization tower for maintenance and replacement operation, so that the factory needs to stop the equipment during maintenance, thereby avoiding the generation of flue gas, and the desulfurization tower cannot be used. This will delay factory production during maintenance operation. In order to solve the above problems, a flue gas desulfurization recovery equipment is proposed. UTILITY MODEL CONTENTS
[0004] The utility model aims at: in order to solve the above problems, a flue gas desulfurization recovery equipment is provided.
[0005] The utility model adopts the technical scheme as follows: a flue gas desulfurization recovery equipment, comprising a desulfurization tower, a partition is fixedly installed in the inside of the desulfurization tower, the partition divides the desulfurization tower into two flue gas channels, butterfly valve assemblies are arranged at the lower flue gas inlet and the upper flue gas outlet of the flue gas channel, and a demisting plate, a spray assembly and a filler are arranged in the middle of the flue gas channel from top to bottom.
[0006] The butterfly valve assembly comprises a semicircular valve plate, a semicircular stop ring and a drive box, the straight side of the semicircular stop ring is fixedly installed on the partition, the arc-shaped side of the semicircular stop ring is fixedly installed on the inner wall of the desulfurization tower, a sealing ring is fixedly installed on the lower part of the semicircular stop ring, a shaft rod is fixedly connected to one side of the semicircular valve plate, the shaft rod is rotatably installed on the desulfurization tower, a worm wheel is fixedly connected to one side of the shaft rod, the drive box is fixedly installed on the outer wall of the desulfurization tower, a motor is fixedly installed on the drive box, a worm is rotatably installed in the drive box, and the motor is connected with the worm through an output shaft.
[0007] The desulfurization tower is provided with an access hole corresponding to each flue gas channel on both sides, and an access plate is detachably connected to the access hole.
[0008] In a preferred embodiment, the lower part of the desulfurization tower is fixedly connected with an inlet smoke pipe.
[0009] In a preferred embodiment, the top of the desulfurization tower is fixedly connected with an outlet smoke pipe.
[0010] In a preferred embodiment, the inner cavity of the desulfurization tower is provided with a slurry area at the bottom.
[0011] In a preferred embodiment, the spraying assembly comprises a conveying pipe, a circulating pump and a spraying pipe, the circulating pump is arranged at the liquid inlet side of the conveying pipe, the conveying pipe and the circulating pump are both mounted on the outer wall of the desulfurization tower, the spraying pipe is mounted in the interior of the desulfurization tower, the spraying pipe is connected with the liquid outlet end of the conveying pipe, a plurality of spray heads are mounted on the spraying pipe, and the liquid inlet end of the conveying pipe is communicated with the slurry area in the desulfurization tower.
[0012] In conclusion, due to the adoption of the above technical scheme, the present application has the following advantages:
[0013] 1. When the internal structure of the desulfurization tower needs to be maintained or replaced, personnel can sequentially maintain the two smoke channels, only the upper and lower butterfly valve assemblies of the corresponding smoke channel need to be closed to seal the smoke channel to be maintained, then the personnel can open the maintenance, after the maintenance of the smoke channel is completed, the other smoke channel can be opened, then the butterfly valve assembly in the other smoke channel is closed, thereby the maintenance operation is repeated, and the desulfurization tower can be kept running during the whole structure maintenance operation, thereby the production of the factory is not affected. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a schematic diagram of the three-dimensional structure of the present application;
[0015] Fig. 2 It is a schematic diagram of the internal structure of the present application from the side;
[0016] Fig. 3 It is a schematic diagram of the three-dimensional structure of the butterfly valve assembly in the present application.
[0017] Marked in the figure: 1-desulfurization tower, 2-baffle, 3-smoke channel, 4-butterfly valve assembly, 5-mist eliminator, 6-spraying assembly, 7-packing, 8-semi-circular valve plate, 9-semi-circular blocking ring, 10-driving box, 11-sealing ring, 12-shaft rod, 13-worm gear, 14-motor, 15-worm, 16-inspection opening, 17-sealing plate, 18-inlet smoke pipe, 19-outlet smoke pipe, 20-slurry area, 21-conveying pipe, 22-circulating pump, 23-spraying pipe, 24-spray head. DETAILED DESCRIPTION
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0019] The following will combine Figs. 1-3 A detailed description of a flue gas desulfurization and recovery device according to an embodiment of the present invention is provided.
[0020] Example:
[0021] This utility model provides a flue gas desulfurization and recovery device, which is referenced in the embodiment of the present invention. Figs. 1 to 3 As shown, the system includes a desulfurization tower 1. The lower part of the desulfurization tower 1 is fixedly connected to an inlet pipe 18, and the top of the desulfurization tower 1 is fixedly connected to an outlet pipe 19. A partition 2 is fixedly installed inside the desulfurization tower 1, which divides the desulfurization tower 1 into two flue gas channels 3. A butterfly valve assembly 4 is installed at both the lower inlet and the upper outlet of the flue gas channel 3. A demister plate 5, a spray assembly 6, and a packing 7 are installed in the middle of the flue gas channel 3 from top to bottom. In this structure, the flue gas enters the desulfurization tower 1 through the inlet pipe 18, and then moves upward, passing through the packing 7 and the spray assembly 6, thereby performing desulfurization operation on the flue gas. The desulfurized flue gas will be discharged from the desulfurization tower 1 after passing through the demister plate 5.
[0022] When the above-mentioned structure is used to maintain the demister plate 5, spray assembly 6 and packing 7 inside the desulfurization tower 1, personnel can maintain the two flue gas passages 3 in sequence. At this time, it is only necessary to close the upper and lower butterfly valve assemblies 4 of the corresponding flue gas passage 3 to close the flue gas passage 4 that needs to be maintained, and then personnel can open it for maintenance. After the flue gas passage 3 is maintained, it can be reopened, and then the butterfly valve assembly 4 in the other flue gas passage 3 can be closed, thus repeating the maintenance operation. During the entire maintenance operation, the desulfurization tower 1 can be kept running, so as not to delay the factory production.
[0023] refer to Figs. 1 to 3 As shown, the desulfurization tower 1 has inspection ports 16 on both sides corresponding to each flue gas passage 3. Each inspection port 16 can be detachably connected to a sealing plate 17. This structure makes it convenient for personnel to maintain the desulfurization tower 1 using the inspection port 16. At the same time, the inspection port 16 can be sealed by the sealing plate 17 when the desulfurization tower 1 is running.
[0024] refer to Figs. 1 to 3As shown, the inner cavity bottom of the desulfurization tower 1 is provided with a slurry area 20, the spray assembly 6 includes a conveying pipe 21, a circulating pump 22 and a spray pipe 23, the circulating pump 22 is arranged at the liquid inlet side of the conveying pipe 21, the conveying pipe 21 and the circulating pump 22 are both mounted on the outer wall of the desulfurization tower 1, the spray pipe 23 is mounted in the interior of the desulfurization tower 1, the spray pipe 23 is connected with the liquid outlet end of the conveying pipe 21, a plurality of spray heads 24 are mounted on the spray pipe 23, the liquid inlet end of the conveying pipe 21 is communicated with the slurry area 20 in the desulfurization tower 1, in this structure, the slurry area 20 of the desulfurization tower 1 stores lime slurry, then the lime slurry is conveyed into the spray pipe 23 by the circulating pump 22 through the conveying pipe 21, and the lime slurry is sprayed out from the spray heads 24, so that the lime slurry is contacted with the flue gas to react and desulfurize.
[0025] Reference Figs. 1 to 3 As shown, the butterfly valve assembly 4 includes a semicircular valve plate 8, a semicircular baffle ring 9 and a driving box 10, the straight side edge of the semicircular baffle ring 9 is fixedly mounted on the partition plate 2, the arc-shaped side edge of the semicircular baffle ring 9 is fixedly mounted on the inner wall of the desulfurization tower 1, a ring of the lower part of the semicircular baffle ring 9 is fixedly mounted with a sealing ring 11, one side of the semicircular valve plate 8 is fixedly connected with a shaft rod 12, the shaft rod 12 is rotatably mounted on the desulfurization tower 1, one side of the shaft rod 12 is fixedly connected with a worm wheel 13, the driving box 10 is fixedly mounted on the outer wall of the desulfurization tower 1, a motor 14 is fixedly mounted on the driving box 10, a worm 15 is rotatably mounted in the driving box 10, the motor 14 is connected with the worm 15 through an output shaft, in this structure, the motor 14 drives the worm 15 to rotate, the worm 15 drives the worm wheel 13 to rotate, thereby further drives the shaft rod 12 to rotate, thereby drives the semicircular valve plate 8 to rotate upward and abut against the semicircular baffle ring 9, at this time, the sealing ring 11 can seal the gap between the semicircular valve plate 8 and the semicircular baffle ring 9, thereby realizing the closure of the flue gas passage 4.
[0026] The implementation principle of the flue gas desulfurization and recovery equipment in the embodiment of the application is as follows: in use, in this structure, the flue gas enters into the desulfurization tower 1 from the flue gas inlet pipe 18, then the flue gas moves upward, passes through the filler 7 and the spray assembly 6, thereby performing the desulfurization operation on the flue gas, the desulfurized flue gas is discharged out of the desulfurization tower 1 after passing through the demisting plate 5;
[0027] When the demisting plate 5, the spray assembly 6 and the filler 7 in the desulfurization tower 1 are maintained, at this time, the personnel can maintain the two flue gas passages 3 in turn, at this time, only the upper and lower butterfly valve assemblies 4 of the corresponding flue gas passage 3 need to be closed, thereby closing the flue gas passage 4 to be maintained, then the personnel can open the maintenance, when the flue gas passage 3 is maintained, the other flue gas passage 3 can be opened, then the butterfly valve assembly 4 in the flue gas passage 3 is closed, thereby repeating the maintenance operation, in the whole maintenance operation, the desulfurization tower 1 can be kept running, thereby not affecting the factory production.
[0028] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A flue gas desulphurization recovery plant comprising a desulphurization tower (1), characterized in that: The inside of the desulfurization tower (1) is fixedly provided with a partition plate (2), which divides the desulfurization tower (1) into two flue gas passages (3), the lower flue gas inlet and the upper flue gas outlet of the flue gas passage (3) are provided with butterfly valve assemblies (4), and the middle part of the flue gas passage (3) is provided with a demister plate (5), a spraying assembly (6) and a filler (7) from top to bottom. The butterfly valve assembly (4) comprises a semicircular valve plate (8), a semicircular blocking ring (9) and a driving box (10), the straight side edge of the semicircular blocking ring (9) is fixedly installed on the partition plate (2), the arc-shaped side edge of the semicircular blocking ring (9) is fixedly installed on the inner wall of the desulfurization tower (1), a ring of sealing rings (11) is fixedly installed at the lower part of the semicircular blocking ring (9), one side of the semicircular valve plate (8) is fixedly connected with a shaft rod (12), the shaft rod (12) is rotatably installed on the desulfurization tower (1), one side of the shaft rod (12) is fixedly connected with a worm gear (13), the driving box (10) is fixedly installed on the outer wall of the desulfurization tower (1), a motor (14) is fixedly installed on the driving box (10), a worm (15) is rotatably installed in the driving box (10), and the motor (14) is connected with the worm (15) through an output shaft. The desulfurization tower (1) is provided with an access hole (16) corresponding to each flue gas passage (3) on both sides, and a sealing plate (17) is detachably connected to the access hole (16).
2. A flue gas desulphurisation recovery apparatus as claimed in claim 1, characterised in that: The lower part of the desulfurization tower (1) is fixedly connected with a flue gas inlet pipe (18).
3. A flue gas desulfurization recovery apparatus as claimed in claim 1, characterized by: The top of the desulfurization tower (1) is fixedly connected with a flue gas outlet pipe (19).
4. A flue gas desulfurization recovery apparatus as claimed in claim 1, characterized by: The inner cavity of the desulfurization tower (1) is provided with a slurry area (20) at the bottom.
5. A flue gas desulphurisation recovery apparatus as claimed in claim 4, characterised in that: The spraying assembly (6) comprises a conveying pipe (21), a circulating pump (22) and a spraying pipe (23), the circulating pump (22) is arranged on the liquid inlet side of the conveying pipe (21), the conveying pipe (21) and the circulating pump (22) are installed on the outer wall of the desulfurization tower (1), the spraying pipe (23) is installed in the desulfurization tower (1), the spraying pipe (23) is connected with the liquid outlet end of the conveying pipe (21), a plurality of spray heads (24) are installed on the spraying pipe (23), and the liquid inlet end of the conveying pipe (21) is communicated with the slurry area (20) in the desulfurization tower (1).