White smoke eliminating device
By embedding fan and mixed blades in the flue gas whitening device and combining vacuum cleaner filtration, the sensory poor problem caused by water vapor in the flue gas is solved, and a low-cost flue gas whitening effect is achieved.
Patent Information
- Application Number
- CN202421820547.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-30
AI Technical Summary
In the existing flue gas whitening device, the flue gas contains a large amount of water vapor, which leads to poor sense during emissions, and the traditional whitening process is costly and difficult to promote.
A flue gas whitening device is designed, and a fan is embedded in the installation box of the outer wall of the exhaust pipe by using the fan. The mixing blades rotate and mix the flue gas and external air, lower the temperature and liquefy the water vapor, and filter impurities through the vacuum-sucking cotton in the protective tube to avoid reflux and improve the mixing effect.
It effectively reduces the white content of flue gas, reduces operating costs, simplifies the whitening process, and reduces equipment investment and operating costs.
Smart Images
Figure CN223170354U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of flue gas whitening, and particularly relates to a flue gas whitening device. Background Technique
[0002] Wet desulfurization is characterized in that the desulfurization system is located at the end of the flue and behind the dust collector, and the reaction temperature in the desulfurization process is lower than the dew point. Therefore, the flue gas after desulfurization needs to be reheated before being discharged. Since it is a gas-liquid reaction, its desulfurization reaction speed is fast, the efficiency is high, and the utilization rate of desulfurization additives is high.
[0003] Currently, the common purification method for desulfurizing or denitrifying flue gas is the wet process. The flue gas contains a large amount of water vapor. Although it meets the discharge standards, it has a poor sensory effect. Traditional flue gas whitening (eliminating white) uses the flue gas reheating process (GGH) or the flue gas condensation process. The above processes have high investment and operating costs and are difficult to promote. Content of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a flue gas whitening device, which aims to solve the technical problems that the flue gas contains a large amount of water vapor under the prior art. Although it meets the discharge standards, it has a poor sensory effect. Traditional flue gas whitening (eliminating white) uses the flue gas reheating process (GGH) or the flue gas condensation process.
[0006] (2) Technical Solutions
[0007] To solve the above technical problems, the utility model provides such a flue gas whitening device, which includes an exhaust pipe and an installation box fixed at the center position of the outer wall of the exhaust pipe. An installation groove communicating with the inside of the exhaust pipe is opened at the center position of the installation box. A fan is embedded and fixed in the installation groove. One end of the exhaust pipe is fixedly installed with a one-way valve, and the other end of the exhaust pipe is rotatably inserted with a rotating shaft. A plurality of mixing blades for mixing flue gas are fixedly arranged on the outer wall of the rotating shaft in an annular array. All the plurality of mixing blades are arc-shaped structures and are attached to the inner wall of the exhaust pipe.
[0008] When using the flue gas whitening elimination device of this technical solution, an installation box is fixed on the outer wall of the exhaust pipe. A fan is embedded and fixed in the empty installation slot of the installation box. After the flue gas is treated, it is discharged from the exhaust pipe. During the discharge process, the fan inhales external air and mixes it with the flue gas. During the mixing process, the temperature of the flue gas is reduced, the water vapor in the flue gas is liquefied, and after liquefaction, the whiteness of the flue gas in the exhaust pipe is reduced. The air in the exhaust pipe drives the rotating shaft to rotate in the exhaust pipe through the mixing blades during the flowing process. During the rotation process, the mixing blades mix the external air and the flue gas, improving the mixing effect of the flue gas and reducing the operation cost of flue gas whitening elimination. A one-way valve is installed on the exhaust pipe to prevent the discharged flue gas generated by the fan from flowing back. At the same time, a protective pipe is threadedly sleeved on the exhaust pipe. The dust-absorbing cotton in the protective pipe further filters the impurities in the flue gas and adsorbs the unliquefied water vapor, reducing the white content in the flue gas. The liquefied water vapor is discharged from the exhaust pipe along the drainage holes and the drain pipe.
[0009] Preferably, a fastening seat is fixedly installed on the exhaust pipe, and bolts are embedded and installed in a circumferential array on the side wall of the fastening seat.
[0010] Furthermore, a threaded portion is provided at one end of the exhaust pipe away from the fastening seat, and a protective pipe is sleeved and installed on the threaded portion.
[0011] Even further, dust-absorbing cotton is embedded and fixed in the protective pipe, and the protective pipe is threadedly sleeved on the exhaust pipe.
[0012] Even further, drainage holes are opened on the inner wall of the exhaust pipe, and a drain pipe communicating with the drainage holes is fixed on the outer wall of the exhaust pipe.
[0013] Even further, a dust-proof plate is fixedly installed at the top of the fan, and the dust-proof plate is embedded and fixed in the installation box.
[0014] Even further, bearings embedded and fixed in the exhaust pipe are installed at both ends of the rotating shaft, and an installation ring fixed to a plurality of mixing blades is fixedly sleeved at the central position of the rotating shaft.
[0015] (3) Beneficial effects
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0017] In the present utility model, an installation box is fixed to the outer wall of the exhaust pipe, and a fan is fixedly embedded in the hollow installation slot of the installation box. After the flue gas is treated, it is discharged from the exhaust pipe. During the discharge process, the fan inhales external air and mixes it with the flue gas. During the mixing process, the temperature of the flue gas is reduced, the water vapor in the flue gas is liquefied, and after liquefaction, the whiteness of the flue gas in the exhaust pipe is reduced. The air in the exhaust pipe drives the rotating shaft to rotate in the exhaust pipe through the mixing blades during the flowing process, and during the rotating process, the mixing blades mix the external air and the flue gas, improving the mixing effect of the flue gas and reducing the operation cost of flue gas dewhitening.
[0018] By installing a check valve on the exhaust pipe, the situation of the discharged flue gas generated by the fan flowing back is avoided. At the same time, a protective pipe is threadedly sleeved on the exhaust pipe, and the dust-absorbing cotton in the protective pipe further filters the impurities in the flue gas and adsorbs the unliquefied water vapor, reducing the white content in the flue gas. The liquefied water vapor is discharged from the exhaust pipe along the drain holes and the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0020] Figure 1 It is a schematic structural diagram of the present utility model;
[0021] Figure 2 It is a schematic diagram of the split structure of the exhaust pipe of the present utility model;
[0022] Figure 3 It is a schematic cross-sectional view of the exhaust pipe of the present utility model;
[0023] Figure 4 For the present utility model Figure 3 It is an enlarged schematic diagram of the structure at A in
[0024] The reference signs in the drawings are: 1. Exhaust pipe; 2. Bolt; 3. Fastening seat; 4. Check valve; 5. Installation box; 6. Rotating shaft; 7. Protective pipe; 8. Drain pipe; 9. Dust-proof plate; 10. Fan; 11. Dust-absorbing cotton; 12. Threaded part; 13. Drain hole; 14. Mixing blade; 15. Installation slot; 16. Bearing; 17. Installation ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0026] This specific embodiment is a flue gas de - whitening device, and its structural schematic diagram is as Figure 1 and Figure 2 shown. The flue gas de - whitening device includes an exhaust pipe 1 and an installation box 5 fixed at the central position of the outer wall of the exhaust pipe 1. An installation groove 15 communicating with the inside of the exhaust pipe 1 is opened at the central position of the installation box 5. A fan 10 is fixedly embedded in the installation groove 15. A one - way valve 4 is fixedly installed at one end of the exhaust pipe 1, and a rotating shaft 6 is rotatably inserted at the other end of the exhaust pipe 1. A plurality of mixing blades 14 for mixing flue gas are fixedly arranged in a circular array on the outer wall of the rotating shaft 6. The plurality of mixing blades 14 are all in an arc - shaped structure and are attached to the inner wall of the exhaust pipe 1.
[0027] A fastening seat 3 is fixedly installed on the exhaust pipe 1. Bolts 2 are embedded and installed in a circular array on the side wall of the fastening seat 3. The bolts 2 are threadedly inserted into the flue gas treatment equipment to keep the exhaust pipe 1 fixed to the flue gas treatment equipment. A threaded portion 12 is provided at one end of the exhaust pipe 1 away from the fastening seat 3. A protective pipe 7 is sleeved and installed on the threaded portion 12. The flue gas is discharged from the exhaust pipe 1 after being treated. During the discharging process, the fan 10 inhales external air to mix with the flue gas, and reduces the temperature of the flue gas during the mixing process, liquefies the water vapor in the flue gas, and reduces the whiteness of the flue gas in the exhaust pipe 1 after liquefaction.
[0028] As Figure 3 and Figure 4As shown in the figure, a dust-absorbing cotton 11 is embedded and fixed in a protective pipe 7, and the protective pipe 7 is threadedly sleeved on an exhaust pipe 1. A drain hole 13 is formed in the inner wall of the exhaust pipe 1, and a drain pipe 8 communicating with the drain hole 13 is fixed on the outer wall of the exhaust pipe 1. A dust-proof plate 9 is fixedly installed at the top of a fan 10, and the dust-proof plate 9 is embedded and fixed in an installation box 5. Bearings 16 embedded and fixed in the exhaust pipe 1 are installed at both ends of a rotating shaft 6, and an installation ring 17 fixed to a plurality of mixing blades 14 is fixedly sleeved at the central position of the rotating shaft 6. When the air in the exhaust pipe 1 flows, the mixing blades 14 drive the rotating shaft 6 to rotate in the exhaust pipe 1, and during the rotation, the mixing blades 14 mix the external air and the flue gas, improving the mixing effect of the flue gas and reducing the operation cost of the flue gas dewhiting; by installing a check valve 4 on the exhaust pipe 1, the backflow of the flue gas discharged by the fan 10 is avoided. At the same time, the protective pipe 7 is threadedly sleeved on the exhaust pipe 1, and the dust-absorbing cotton 11 in the protective pipe 7 further filters the impurities in the flue gas and adsorbs the unliquefied water vapor.
[0029] The split structure schematic diagram of the exhaust pipe 1 of the flue gas dewhiting device is as Figure 2 shown, and the sectional structure schematic diagram of the exhaust pipe 1 is as Figure 3 shown, and its Figure 3 enlarged schematic diagram of the structure at A in Figure 4 shown.
[0030] Working principle: When using the flue gas dewhiting device of this technical solution, the flue gas is discharged from the exhaust pipe 1 after being treated. During the discharge process, the fan 10 sucks in the external air and mixes it with the flue gas. During the mixing process, the temperature of the flue gas is reduced, the water vapor in the flue gas is liquefied, and after liquefaction, the whiteness of the flue gas in the exhaust pipe 1 is reduced. When the air in the exhaust pipe 1 flows, the mixing blades 14 drive the rotating shaft 6 to rotate in the exhaust pipe 1, and during the rotation, the mixing blades 14 mix the external air and the flue gas, improving the mixing effect of the flue gas and reducing the operation cost of the flue gas dewhiting; by installing a check valve 4 on the exhaust pipe 1, the backflow of the flue gas discharged by the fan 10 is avoided. At the same time, the protective pipe 7 is threadedly sleeved on the exhaust pipe 1, and the dust-absorbing cotton 11 in the protective pipe 7 further filters the impurities in the flue gas and adsorbs the unliquefied water vapor, reducing the white content in the flue gas. The liquefied water vapor is discharged from the exhaust pipe 1 along the drain hole 13 and the drain pipe 8.
[0031] All technical features in this embodiment can be freely combined according to actual needs.
[0032] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used 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 recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A flue gas de - whiting device, the flue gas de - whiting device comprising an exhaust pipe (1) and an installation box (5) fixed at the central position of the outer wall of the exhaust pipe (1), characterized in that, An installation groove (15) communicating with the inside of the exhaust pipe (1) is formed at the central position of the installation box (5). A fan (10) is fixedly embedded in the installation groove (15). A one-way valve (4) is fixedly installed at one end of the exhaust pipe (1), and a rotating shaft (6) is rotatably inserted into the other end of the exhaust pipe (1). A plurality of mixing blades (14) for mixing flue gas are fixedly arranged on the outer wall of the rotating shaft (6) in an annular array. The plurality of mixing blades (14) are all arc-shaped structures and are attached to the inner wall of the exhaust pipe (1).
2. The flue gas whitening device according to claim 1, wherein A fastening seat (3) is fixedly installed on the exhaust pipe (1). Bolts (2) are embedded and installed on the side wall of the fastening seat (3) in an annular array.
3. The flue gas de - whiting device according to claim 2, characterized in that, A threaded portion (12) is arranged at one end of the exhaust pipe (1) away from the fastening seat (3). A protective pipe (7) is sleeved on the threaded portion (12).
4. The flue gas de - whiting device according to claim 3, characterized in that, A dust-absorbing cotton (11) is fixedly embedded in the protective pipe (7), and the protective pipe (7) is threadedly sleeved on the exhaust pipe (1).
5. A flue gas de - whitening device according to claim 1, characterized in that, Drainage holes (13) are formed in the inner wall of the exhaust pipe (1), and a drain pipe (8) communicating with the drainage holes (13) is fixed to the outer wall of the exhaust pipe (1).
6. The flue gas de - whiting device according to claim 1, characterized in that, A dust-proof plate (9) is fixedly installed at the top of the fan (10), and the dust-proof plate (9) is fixedly embedded in the installation box (5).
7. The flue gas whitening elimination device according to claim 1, characterized in that, Bearings (16) embedded and fixed in the exhaust pipe (1) are installed at both ends of the rotating shaft (6), and an installation ring (17) fixed to the plurality of mixing blades (14) is fixedly sleeved at the central position of the rotating shaft (6).