CN212283543U - Dry flue gas desulfurization device - Google Patents
Dry flue gas desulfurization device Download PDFInfo
- Publication number
- CN212283543U CN212283543U CN202020766833.XU CN202020766833U CN212283543U CN 212283543 U CN212283543 U CN 212283543U CN 202020766833 U CN202020766833 U CN 202020766833U CN 212283543 U CN212283543 U CN 212283543U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- cylinder
- reaction
- reaction cylinder
- exhaust pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a dry flue gas desulfurization device relates to environmental protection equipment technical field. The dry flue gas desulfurization device comprises a cyclone cylinder and a reaction cylinder which is sleeved outside the cyclone cylinder at intervals. The upper portion of whirl section of thick bamboo is provided with into tobacco pipe along tangential direction, and advances the tobacco pipe and stretch out the reaction cylinder setting, and flue gas and desulfurizer can flow in through advancing the tobacco pipe the whirl section of thick bamboo, the top and the bottom of whirl section of thick bamboo are provided with first exhaust pipe and dust exhaust pipe respectively, and first exhaust pipe communicates with the upper portion section of thick bamboo chamber of reaction cylinder, and the dust exhaust pipe stretches out the reaction cylinder setting. The top of the reaction cylinder is arranged in a sealing way, and the bottom of the reaction cylinder is provided with a second smoke exhaust pipe. The dust in the flue gas can be removed in advance through the cyclone cylinder, so that the flue gas and the desulfurizer are fully mixed, and the flue gas desulfurization efficiency is improved. The reaction cylinder can effectively prolong the contact reaction time of the flue gas and the desulfurizer, further improve the dry desulfurization efficiency of the flue gas, and has excellent economical efficiency.
Description
Technical Field
The utility model relates to an environmental protection equipment technical field especially relates to a dry flue gas desulfurization device.
Background
Both dry flue gas desulfurization technology and wet flue gas desulfurization technology are currently more common flue gas desulfurization technologies. Although the wet flue gas desulfurization technology is relatively mature and has high desulfurization efficiency, the problems of secondary environmental pollution and the like such as desulfurization wastewater treatment, chimney white elimination and the like can be caused in the operation process, so that the investment and operation cost of the flue gas treatment link is high. In contrast, the dry flue gas desulfurization technology has simple flow and low cost, and the treatment process does not involve water, so that the environmental problems can be avoided. With the gradual improvement of the environmental protection requirement, the advantages of the dry flue gas desulfurization technology are increasingly displayed, and the application prospect is increasingly wide.
Specifically, dry flue gas desulfurization refers to the removal of sulfur-containing acidic gases from flue gas by using powdery or granular absorbents and adsorbents. Currently, dry flue gas desulfurization is commonly carried out using a circulating fluidized bed apparatus. The circulating fluidized bed device mainly comprises a bottom Venturi tube, a cylinder body, a cyclone separator, a material returning mechanism and the like. The Venturi tube is mainly used for improving the flow velocity of the flue gas and ensuring the mixing and fluidization of the flue gas and the desulfurizer; the barrel is used for providing a desulfurization reaction place; the cyclone separator is mainly used for gas-solid separation, the separated solid returns to the reactor through the material returning mechanism to continue to participate in the desulfurization reaction, and the desulfurized pure flue gas is discharged from the top of the separator and is exhausted to the atmosphere through a downstream dust removal device. However, the operation process of the circulating fluidized bed device is difficult to control, bed collapse, blockage and other phenomena are easy to occur, the mixing effect of the flue gas and the desulfurizer is poor, the desulfurization efficiency is often low, and the economy and the like are not fully exerted.
Accordingly, there is a need for a dry flue gas desulfurization device to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dry flue gas desulfurization device, flue gas and desulfurizer mix effectually, and desulfurization efficiency is high, and economic nature is good.
To achieve the purpose, the utility model adopts the following technical proposal:
a dry flue gas desulfurization device comprises a cyclone cylinder and a reaction cylinder sleeved outside the cyclone cylinder at intervals;
a smoke inlet pipe is arranged on the upper portion of the cyclone cylinder along the tangential direction and extends out of the reaction cylinder, smoke and a desulfurizer can flow into the cyclone cylinder through the smoke inlet pipe, a first smoke exhaust pipe and a dust exhaust pipe are respectively arranged at the top and the bottom of the cyclone cylinder, the first smoke exhaust pipe is communicated with the upper cylinder cavity of the reaction cylinder, and the dust exhaust pipe extends out of the reaction cylinder;
the top of the reaction cylinder is arranged in a sealing mode, and the bottom of the reaction cylinder is provided with a second smoke exhaust pipe.
Optionally, the top of whirl section of thick bamboo is provided with the fairing cap, the fairing cap is established the exit end of first exhaust pipe, the inner chamber of fairing cap with first exhaust pipe intercommunication, the export orientation of fairing cap the barrel inner wall setting of reaction cylinder.
Optionally, the exhaust direction of the outlet is consistent with the swirling direction of the flue gas flowing out of the first flue pipe.
Optionally, a cyclone flow guiding mechanism is arranged between the reaction cylinder and the cyclone cylinder along the circumferential direction of the cyclone cylinder, and the cyclone flow guiding mechanism is configured to guide the flue gas to rotate.
Optionally, the reaction cylinder comprises a reaction cylinder top cover, and a gas flow guide part is arranged on the reaction cylinder top cover and is configured to guide the flue gas in the reaction cylinder to flow towards the inner wall of the reaction cylinder.
Optionally, the airflow guide portion is a conical portion disposed toward the cyclone tube.
Optionally, the reaction cylinder comprises a reaction cylinder bottom plate, the reaction cylinder bottom plate is arranged in a downward inclined mode, and the second smoke exhaust pipe is arranged on the lower end side of the reaction cylinder bottom plate.
Optionally, the dry flue gas desulfurization device further comprises a desulfurizer injection mechanism, and a jet orifice of the desulfurizer injection mechanism is communicated with the inlet end of the smoke inlet pipe.
Optionally, the injection port is arranged perpendicular to the axis of the smoke inlet pipe.
Optionally, the dry flue gas desulfurization device further comprises a first dust collecting hopper, and the first dust collecting hopper is communicated with the outlet of the dust exhaust pipe to collect dust exhausted from the dust exhaust pipe; and/or
The dry flue gas desulfurization device also comprises a second ash collecting hopper, and the second ash collecting hopper is communicated with the bottom of the second smoke exhaust pipe to collect solid particles exhausted from the second smoke exhaust pipe.
The utility model has the advantages that:
the utility model provides a dry flue gas desulfurization device. Through setting up the usable cyclone separation of whirl section of thick bamboo and acting on and make the dust separate out from the flue gas in advance, guarantee desulfurizer and flue gas intensive mixing, improve the desulfurization efficiency of flue gas. Meanwhile, the reaction barrel is arranged at the outer part of the cyclone barrel in a sleeved mode at intervals, so that the flue gas and the desulfurizer can flow into the upper barrel cavity of the reaction barrel after being discharged from the first smoke exhaust pipe of the cyclone barrel. Because the top of the reaction cylinder is hermetically arranged, the flow direction of the flue gas and the desulfurizer can be changed, so that the flue gas and the desulfurizer can flow from top to bottom in the reaction cylinder and react until the flue gas is discharged along a second smoke discharge pipe at the bottom of the reaction cylinder, the contact reaction time of the flue gas and the desulfurizer is effectively prolonged, the dry desulfurization efficiency of the flue gas is further improved, and the economy is excellent.
Drawings
FIG. 1 is a schematic view of the overall structure of a dry flue gas desulfurization device provided by the embodiment of the present invention;
FIG. 2 is a schematic structural view of the assembly of a desulfurizer injection mechanism and a smoke inlet pipe in the dry flue gas desulfurization device provided by the embodiment of the present invention;
fig. 3 is a schematic top view of a rectifying cap in the dry flue gas desulfurization device provided by the embodiment of the present invention.
In the figure:
1. a cyclone cylinder; 11. a smoke inlet pipe; 12. a first smoke exhaust pipe; 13. a dust exhaust pipe; 2. a reaction cylinder; 21. a reaction cylinder top cover; 211. an airflow guide part; 22. a reaction cylinder bottom plate; 23. a second smoke exhaust pipe; 3. a rectifying cap; 31. a fairing cap body; 32. an outlet; 4. a rotational flow diversion mechanism; 5. a desulfurizer injection mechanism; 51. an ejection port; 6. a first dust collecting hopper; 7. a second dust collecting hopper.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The embodiment provides a dry flue gas desulfurization device. As shown in FIG. 1, the dry flue gas desulfurization device comprises a cyclone cylinder 1 and a reaction cylinder 2 which is sleeved outside the cyclone cylinder 1 at a spacing. Specifically, the upper part of the cyclone cylinder 1 is provided with a smoke inlet pipe 11 along the tangential direction, the smoke inlet pipe 11 extends out of the reaction cylinder 2, and the smoke and the desulfurizer enter the cyclone cylinder 1 through the smoke inlet pipe 11. The top and the bottom of the cyclone cylinder 1 are respectively provided with a first smoke exhaust pipe 12 and a dust exhaust pipe 13, the first smoke exhaust pipe 12 is communicated with the upper cylinder cavity of the reaction cylinder 2, and the dust exhaust pipe 13 extends out of the reaction cylinder 2. The bottom of the reaction cylinder 2 is provided with a second smoke exhaust pipe 23.
After the flue gas and the desulfurizer enter the upper part of the cyclone cylinder 1 along the tangential direction of the cyclone cylinder 1 through the smoke inlet pipe 11, the flue gas and the desulfurizer flow downwards in the cyclone cylinder 1 in a spiral way. It should be noted that, since the smoke inlet pipe 11 is disposed to extend out of the reaction cylinder 2, the smoke and the desulfurizing agent do not flow into the reaction cylinder 2 at this time. After entering the cyclone cylinder 1, the dust in the flue gas can cling to the inner wall of the cyclone cylinder 1 to flow downwards under the action of centrifugal force and is discharged out of the cyclone cylinder 1 through the dust discharge pipe 13. After the dust is separated from the flue gas, the flue gas is nearly pure gas, so the desulfurizer can be more fully mixed with the flue gas, and the desulfurization efficiency is improved. Further, it is noted that since the dust exhaust pipe 13 is disposed to protrude from the reaction cylinder 2, dust does not enter the reaction cylinder 2.
Then, the desulfurizer and the flue gas spirally rise in the cyclone cylinder 1 and enter the upper cylinder cavity of the reaction cylinder 2 through the first smoke exhaust pipe 12. Because the top of the reaction cylinder 2 is arranged in a closed manner, after the desulfurizer and the flue gas rise to the top of the reaction cylinder 2, the flow direction of the desulfurizer and the flue gas can be changed, so that the desulfurizer and the flue gas can flow from top to bottom in the reaction cylinder 2 until the desulfurizer and the flue gas are discharged along the second smoke discharge pipe 23. Therefore, like the cyclone cylinder 1, the reaction cylinder 2 also provides a reaction site for the desulfurization reaction of the flue gas, so that the contact reaction time of the flue gas and a desulfurizing agent is prolonged, and the overall desulfurization efficiency of the dry flue gas desulfurization device is further improved.
In addition, it can be understood that the height-diameter ratio of the flue gas desulfurization device can be reduced, the safety of the flue gas desulfurization device is improved, and the flue gas desulfurization device is convenient to overhaul due to the internal and external double-cylinder design of the cyclone cylinder 1 and the reaction cylinder 2.
Optionally, as shown in fig. 1 and fig. 2, a desulfurizer spraying mechanism 5 is further provided in the dry flue gas desulfurization device, and a spraying port 51 of the desulfurizer spraying mechanism 5 is communicated with the inlet end of the smoke inlet pipe 11. The desulfurizer can be rapidly injected into the smoke inlet pipe 11 by the desulfurizer injection mechanism 5 with preset jet intensity. Further, the injection port 51 is disposed perpendicular to the axis of the smoke inlet pipe 11. Specifically, as shown in fig. 2, the smoke inlet pipe 11 is a rectangular pipe, and the injection port 51 vertically penetrates through the pipe wall of the smoke inlet pipe 11 and extends into the smoke inlet pipe 11. According to the arrangement, the desulfurizer can be sprayed out and then has enough insertion depth in the flue gas, so that the primary mixing of the desulfurizer and the flue gas is ensured to be more sufficient. Optionally, a plurality of injection ports 51 may be further disposed along the circumferential direction of the smoke inlet pipe 11 to further enhance the mixing effect of the desulfurizing agent and the smoke.
Alternatively, as shown in fig. 1, in order to collect the dust separated in the cyclone cylinder 1, a first dust collecting hopper 6 communicated with the outlet of the dust exhaust pipe 13 is arranged in the dry flue gas desulfurization device. Specifically, the first dust collecting hopper 6 is arranged at the bottom of the dust exhaust pipe 13, and dust separated in the cyclone cylinder 1 falls into the first dust collecting hopper 6 in a gravity settling manner.
Optionally, as shown in fig. 1, a top of the cyclone cartridge 1 is provided with a fairing cap 3. The rectifying cap 3 is covered on the outlet end of the first exhaust pipe 12, the inner cavity of the rectifying cap 3 is communicated with the first exhaust pipe 12, and the outlet 32 of the rectifying cap 3 faces the inner wall of the reaction cylinder 2. When the smoke is discharged from the first smoke discharge pipe 12, the smoke enters the inner cavity of the fairing 3 and flows out through the outlet 32 of the fairing 3. Because export 32 sets up towards the barrel inner wall of reaction cylinder 2, so can guide the flue gas through fairing cap 3 and flow towards the barrel inner wall of reaction cylinder 2, effectively avoid the flue gas to take place the backward flow, and then can make the flue gas more smoothly get into between the barrel inner wall of reaction cylinder 2 and the barrel outer wall of whirl 1 and flow downwards in reaction cylinder 2.
Further, to better guide the flow of the flue gas, the exhaust direction of the outlet 32 is set to be consistent with the swirling direction of the flue gas flowing out of the first exhaust pipe 12 to maintain the swirling flow of the flue gas. Specifically, in the cowl 3, the cowl main body 31 is provided in a cylindrical structure having a hermetic top cover. As shown in fig. 3, the outlet 32 is provided in plural, and the plural outlets 32 are provided outside the fairing body 31 in the circumferential direction of the fairing body 31. Meanwhile, the outlet 32 is configured as an arc hole structure, and the arc direction of the outlet is consistent with the rotational flow direction of the smoke flowing out of the first smoke exhaust pipe 12. In this embodiment, the total opening area of the outlet 32 is not smaller than the opening area of the inlet end of the fairing 3, so as to ensure that the flue gas flow can smoothly flow through the fairing 3.
Optionally, as shown in fig. 1, a swirl flow guide mechanism 4 is further provided between the reaction cylinder 2 and the swirl cylinder 1 along the circumferential direction of the swirl cylinder 1. The rotational flow guide mechanism 4 can guide the flue gas to rotate, so that the flue gas and the desulfurizer can be effectively contacted under various working conditions (especially under the low-load operation working condition), and the desulfurization efficiency is improved. In this embodiment, the rotational flow guide mechanism 4 is a spiral guide vane, and the number of the spiral guide vane can be adjusted according to the amount of flue gas to be processed, so as to meet the guide requirements under different load operation conditions. In general, the spiral guide vane can be arranged in 1-2 layers from top to bottom between the reaction cylinder 2 and the cyclone cylinder 1. In addition, since the specific structure of the spiral guide vane is the prior art, it is not described herein again.
In this embodiment, the structure of the reaction cylinder 2 is designed to ensure the smooth flow of the flue gas in the reaction cylinder 2. Alternatively, as shown in fig. 1, the reaction cylinder 2 includes a reaction cylinder top cover 21, and the reaction cylinder top cover 21 is provided with a gas flow guide 211. Similar to the arrangement of the rectifying cap 3, the flue gas in the reaction cylinder 2 can be guided to flow toward the inner wall of the reaction cylinder 2 by the gas flow guide portion 211, so that the flue gas can more smoothly enter between the inner wall of the reaction cylinder 2 and the outer wall of the cyclone cylinder 1 and flow downward in the reaction cylinder 2.
Alternatively, the gas flow guide 211 is a conical portion provided toward the cyclone tube 1, and the gas flow of the flue gas can be guided to the inner wall side of the tube body of the reaction tube 2 by the conical surface of the conical portion. More importantly, the conical part is favorable for maintaining the rotational flow of the flue gas in the reaction cylinder 2, so that the flue gas and the desulfurizer can be always in effective contact, and the desulfurization efficiency is ensured. In particular, the cone angle of the conical portion should be greater than 120 °.
Optionally, as shown in fig. 1, the reaction cylinder 2 further includes a reaction cylinder bottom plate 22, the reaction cylinder bottom plate 22 is disposed to be inclined downward, and the second smoke exhaust pipe 23 is disposed at a lower end side of the reaction cylinder bottom plate 22. According to the arrangement, solid particles such as dust, desulfurizer, desulfurization products and the like deposited in the reaction cylinder 2 can be conveniently discharged from the reaction cylinder 2 through the second smoke exhaust pipe 23 in time, and the cleanness of the interior of the reaction cylinder 2 is ensured. In this embodiment, in order to ensure the solid particle discharging effect, the reaction cylinder bottom plate 22 is an inclined flat plate, and the inclination angle of the inclined flat plate relative to the horizontal plane is greater than 30 °. Meanwhile, the inlet end of the second smoke exhaust pipe 23 is correspondingly arranged as an inclined pipe section.
Further, a second ash collecting hopper 7 is further arranged in the dry flue gas desulfurization device, the second ash collecting hopper 7 is communicated with the bottom of the second smoke exhaust pipe 23 to collect solid particles discharged from the reaction cylinder 2 in time, and the solid particles are prevented from being retained in the second smoke exhaust pipe 23 and even being mixed with the desulfurized flue gas.
Further, regarding the overall structure, the cylinder body of the cyclone cylinder 1 includes a large-diameter straight cylinder, a conical cylinder and a small-diameter straight cylinder which are coaxially arranged from top to bottom and are sequentially connected. In this embodiment, the small-diameter straight cylinder serves as the dust exhaust pipe 13. Further, the axis of the first exhaust pipe 12 may be appropriately offset from the axis of the cyclone cartridge 1 to improve the separation performance of the cyclone cartridge 1.
Optionally, the barrel of the reaction barrel 2 is a straight barrel, and the barrel of the reaction barrel 2 is coaxially arranged with the barrel of the cyclone barrel 1. In this embodiment, the diameter of the reaction cylinder 2 is 1.5 times of the diameter of the large diameter cylinder in the cyclone cylinder 1, so as to obtain a good desulfurization effect. Of course, in other embodiments, the ratio of the cylinder diameters can be adjusted as appropriate according to actual conditions.
In the following, taking the flue gas desulfurization process of a coal-fired boiler as an example, the working process of the dry flue gas desulfurization device provided in this embodiment is described:
(1) slaked lime is used as a desulfurizer, and the desulfurizer is ground to about 1000 meshes through a powder preparation system (the particle size of the desulfurizer is smaller than that of dust separated from the cyclone cylinder 1, so that the desulfurizer is prevented from being discharged out of the cyclone cylinder 1 together with the dust);
(2) introducing flue gas into a flue gas inlet pipe 11 from a flue at the temperature of 300-400 ℃ of a boiler, simultaneously spraying a desulfurizing agent into the flue gas by a desulfurizing agent spraying mechanism 5 in a pneumatic conveying mode to preliminarily mix the desulfurizing agent and the flue gas, and enabling the mixed flue gas and the desulfurizing agent to enter a cyclone cylinder 1 through the flue gas inlet pipe 11, wherein the flow rate of a flue gas inlet is 15-25 m/s;
(3) after entering the cyclone cylinder 1, the flue gas and the desulfurizer flow downwards along the inner wall of the cylinder body of the cyclone cylinder 1 in a spiral manner, and in the process, dust in the flue gas is discharged into the first dust collecting hopper 6 through the dust discharge pipe 13 under the action of centrifugal force. Specifically, the cyclone cylinder 1 provided by the embodiment has a removal rate of more than 99% for particles with a particle size of more than 20 μm, and can remove at least more than 90% of dust in flue gas generated by a coal-fired boiler. Then, the desulfurizer and the flue gas without dust spirally rise from the bottom of the cyclone cylinder 1, and the flow velocity of the flue gas is 15-20 m/s. In the process, the flue gas is almost pure gas, so the flue gas can be fully mixed with the desulfurizer;
(4) then, the flue gas is discharged from the cyclone cylinder 1 through the first smoke discharge pipe 12, and flows into the reaction cylinder 2 after being rectified by the rectifying cap 3. In the reaction cylinder 2, the flue gas flows downwards spirally and continuously reacts with the unreacted desulfurizer, and the flow speed of the flue gas is 35-45 m/s;
(5) finally, the desulfurized flue gas flows out of the reaction cylinder 2 through the second smoke exhaust pipe 23, and the solid particles deposited in the reaction cylinder 2 fall into the second ash collecting hopper 7.
As for the final result, the whole retention time of the flue gas in the dry flue gas desulfurization device can reach more than 2 seconds, and the flue gas desulfurization efficiency can reach more than 95%.
To sum up, the utility model provides a dry flue gas desulfurization device. The cyclone cylinder 1 can remove dust in the flue gas in advance, ensures that the flue gas and a desulfurizer can be fully mixed, improves the desulfurization efficiency of the flue gas, and is particularly suitable for desulfurization and purification of the flue gas of furnaces and kilns with large dust content, such as coal-fired boilers, cement kilns and the like. Furthermore, the reaction barrel 2 sleeved outside the cyclone barrel 1 at intervals can ensure that the flue gas and the desulfurizer flow out of the cyclone barrel 1 and then enter the reaction barrel 2 for continuous reaction, effectively prolongs the contact reaction time of the flue gas and the desulfurizer, further improves the dry desulfurization efficiency of the flue gas, and has excellent economical efficiency.
On the whole, the dry flue gas desulfurization device has the advantages of compact structure, simple flow, and low investment and operation cost, and is particularly suitable for flue gas desulfurization of small and medium-sized coal-fired industrial boilers.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. A dry flue gas desulfurization device is characterized by comprising a cyclone cylinder (1) and a reaction cylinder (2) which is sleeved outside the cyclone cylinder (1) at intervals;
a smoke inlet pipe (11) is arranged on the upper portion of the cyclone cylinder (1) along the tangential direction, the smoke inlet pipe (11) extends out of the reaction cylinder (2), smoke and a desulfurizer can flow into the cyclone cylinder (1) through the smoke inlet pipe (11), a first smoke exhaust pipe (12) and a dust exhaust pipe (13) are respectively arranged on the top and the bottom of the cyclone cylinder (1), the first smoke exhaust pipe (12) is communicated with the upper cylinder cavity of the reaction cylinder (2), and the dust exhaust pipe (13) extends out of the reaction cylinder (2);
the top of the reaction cylinder (2) is arranged in a sealing way, and the bottom of the reaction cylinder (2) is provided with a second smoke exhaust pipe (23).
2. The dry flue gas desulfurization device according to claim 1, wherein a rectifying cap (3) is disposed on the top of the cyclone cylinder (1), the rectifying cap (3) covers the outlet end of the first flue gas pipe (12), the inner cavity of the rectifying cap (3) is communicated with the first flue gas pipe (12), and the outlet (32) of the rectifying cap (3) is disposed toward the inner wall of the reaction cylinder (2).
3. The dry flue gas desulfurization device according to claim 2, characterized in that the exhaust direction of the outlet (32) coincides with the swirling direction of the flue gas flowing out of the first exhaust pipe (12).
4. The dry flue gas desulfurization device according to claim 1, characterized in that a cyclone flow guiding mechanism (4) is provided between the reaction cylinder (2) and the cyclone cylinder (1) in the circumferential direction of the cyclone cylinder (1), the cyclone flow guiding mechanism (4) being configured to guide the flue gas to rotate.
5. The dry flue gas desulfurization device according to claim 1, wherein the reaction cylinder (2) comprises a reaction cylinder top cover (21), and a gas flow guide part (211) is disposed on the reaction cylinder top cover (21), wherein the gas flow guide part (211) is configured to guide the flue gas in the reaction cylinder (2) to flow towards the inner wall of the reaction cylinder (2).
6. The dry flue gas desulfurization device according to claim 5, characterized in that the gas flow guide (211) is a conical section disposed towards the cyclone cartridge (1).
7. The dry flue gas desulfurization device according to claim 1, wherein the reaction drum (2) comprises a reaction drum bottom plate (22), the reaction drum bottom plate (22) is disposed in a downward inclination, and the second smoke exhaust pipe (23) is disposed at a lower end side of the reaction drum bottom plate (22).
8. The dry flue gas desulfurization device according to claim 1, further comprising a desulfurizing agent injection mechanism (5), wherein the injection port (51) of the desulfurizing agent injection mechanism (5) is communicated with the inlet end of the smoke inlet pipe (11).
9. The dry flue gas desulfurization device according to claim 8, wherein the injection port (51) is disposed perpendicular to the axis of the smoke inlet pipe (11).
10. The dry flue gas desulfurization device according to claim 1, characterized in that it further comprises a first dust hopper (6), said first dust hopper (6) communicating with the outlet of the dust exhaust duct (13) to collect the dust discharged from the dust exhaust duct (13); and/or
The dry flue gas desulfurization device also comprises a second ash collecting hopper (7), wherein the second ash collecting hopper (7) is communicated with the bottom of the second smoke exhaust pipe (23) to collect solid particles exhausted from the second smoke exhaust pipe (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020766833.XU CN212283543U (en) | 2020-05-11 | 2020-05-11 | Dry flue gas desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020766833.XU CN212283543U (en) | 2020-05-11 | 2020-05-11 | Dry flue gas desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212283543U true CN212283543U (en) | 2021-01-05 |
Family
ID=73965987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020766833.XU Active CN212283543U (en) | 2020-05-11 | 2020-05-11 | Dry flue gas desulfurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212283543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499682A (en) * | 2021-08-21 | 2021-10-15 | 杭州航民江东热电有限公司 | Desulfurizing cylinder |
-
2020
- 2020-05-11 CN CN202020766833.XU patent/CN212283543U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499682A (en) * | 2021-08-21 | 2021-10-15 | 杭州航民江东热电有限公司 | Desulfurizing cylinder |
| CN113499682B (en) * | 2021-08-21 | 2023-03-28 | 杭州航民江东热电有限公司 | Desulfurizing cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205461778U (en) | Semidry method circulating fluidized bed flue gas is SOx/NOx control device simultaneously | |
| CN210278779U (en) | Semi-dry desulfurization dust collector | |
| CN205461770U (en) | Quick circulation of coaxial short distance is semidry method gas cleaning equipment of desorption pollutant in coordination | |
| CN201168563Y (en) | Pneumatic flow guide dust removing and desulferizing device | |
| CN103506005A (en) | SCR denitration device and denitration method applicable to middle and small-size boilers | |
| CN212283543U (en) | Dry flue gas desulfurization device | |
| CN102266718A (en) | Semi dry process flue gas desulfurization method of circulating fluidized bed based on circulation, and apparatus thereof | |
| CN106268282B (en) | Circulating fluid bed flue-gas desulfurizing device | |
| CN201701871U (en) | Desulfuration, denitration, decarburization, dedusting and black smoke removing integrated equipment | |
| CN101357299A (en) | Desulfurization reaction tower of circulating fluid bed | |
| CN102512901B (en) | Composite dust-removing and collaborative desulfurization and denitration device capable of wetting flue gas | |
| CN102423593A (en) | Method for simultaneously dedusting, desulphurizing and denitrating boiler flue gas in coal-fired industry | |
| CN210814701U (en) | Flue gas desulfurization device | |
| CN211799951U (en) | System for comprehensive treatment of flue gas | |
| CN111389216A (en) | Dry flue gas desulfurization device | |
| CN111111404A (en) | Flue gas treatment system and method for cement kiln | |
| CN102671535A (en) | Integrated purifying technology and device for desulfurating and dedusting smoke of semi-dry type circulating fluidized bed | |
| CN102120131B (en) | Method and device for desulfurizing flue gas of thermal power unit burning high sulfur coal | |
| CN202191838U (en) | Flue gas disposing device of coal-fired industrial boiler | |
| CN205073879U (en) | Exhaust gas treatment system | |
| CN201030287Y (en) | Cyclone boiler flue gas desulfurization dust cleaning apparatus | |
| CN213050066U (en) | Integrated equipment and system for flue gas purification | |
| CN106902622A (en) | Reaction fluidized bed system and diversion type rotary circulating fluidized bed desulfurization device comprising same | |
| CN2247049Y (en) | Devulcanizer for smoke circulation fludization method | |
| CN202427313U (en) | Smoke humidification composite type dust-removing and synergistic desulfurization and denitration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |