CN203533587U - Gypsum rain preventing device for chimney - Google Patents
Gypsum rain preventing device for chimney Download PDFInfo
- Publication number
- CN203533587U CN203533587U CN201320584277.4U CN201320584277U CN203533587U CN 203533587 U CN203533587 U CN 203533587U CN 201320584277 U CN201320584277 U CN 201320584277U CN 203533587 U CN203533587 U CN 203533587U
- Authority
- CN
- China
- Prior art keywords
- chimney
- top cover
- gypsum rain
- gypsum
- height
- 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.)
- Expired - Lifetime
Links
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 27
- 239000010440 gypsum Substances 0.000 title claims abstract description 27
- 239000002002 slurry Substances 0.000 claims description 11
- 238000006477 desulfuration reaction Methods 0.000 claims description 8
- 230000023556 desulfurization Effects 0.000 claims description 8
- 230000003009 desulfurizing effect Effects 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 15
- 239000003546 flue gas Substances 0.000 description 15
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000005367 electrostatic precipitation Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001114 SAF 2507 Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model discloses a gypsum rain preventing device for a chimney. The gypsum rain preventing device for the chimney is arranged on the chimney on the top of a desulfurizing tower and comprises a top cover, wherein the top cover is arranged on an outlet in the top of the chimney and is in the shape of a cone with a downward opening, a smoke vent is arranged below the top cover, side baffles are fixedly arranged outside the chimney, secondary baffle ring plates extending inwards are arranged at the upper ends of the side baffles, and the vertical height of each secondary baffle ring plate is larger than that of the smoke vent. Gypsum drops are collected through vortex circulating of smoke on the top cover and secondary collision of the smoke on the secondary baffle ring plates, so that the content of the gypsum drops in the smoke is reduced, 'gypsum rain' is prevented, and environmental pollution is reduced.
Description
Technical field
The utility model relates to the anti-gypsum rain device of a kind of chimney.
Background technology
The early stage boiler of building, because sulfur dioxide in flue gas and dust emission require lower.Emission-control equipment is mostly the configuration of electrostatic precipitation+double alkali method desulfurizing, electrostatic precipitation+semi-dry desulphurization, and what have does not even have a desulfurizer.While configuring like this, the clean flue-gas temperature after desulfurization is higher, less to the corrosivity of concrete chimney and flue.So early stage concrete chimney and the flue inwall of building almost do not done preservative treatment.
Along with issuing of < < fossil-fuel power plant atmospheric pollutant emission standard > > (GB13223-2011), above several desulfurizers cannot meet the emission request of sulfur dioxide.Must adopt wet desulphurization device, application at present with wet desulphurization device be widely lime/lime stone----gypsum desulfurization.But in wet desulfurization system, the exhaust temperature of clean flue gas can only reach more than 46 ℃, below 52 ℃.At this temperature, the corrosivity of flue gas is larger, and concrete chimney originally and flue cannot bear.
Adopt after wet desulfurization system, if former concrete chimney and flue are carried out anticorrosion, all boilers of must stopping transport, and the anticorrosion cycle is long, cost is high.So a lot of enterprises consider that in line steel stack (being cigarette tower integrated apparatus) is set at desulfurizing tower top solves this problem.But arrange after direct exhaust chimney, because total height is generally no more than 75 meters, far below the height (120 meters～150 meters) of former concrete chimney.After the gravelstone cream drop landing that clean flue gas is carried secretly, can cause very large impact to the environment of periphery, some designs jejune project, and gypsum rain phenomenon is very serious, near desulfurizing tower, as spotted.In case gypsum rain is the technical barrier that cigarette tower integrated desulfurization device must overcome.
Utility model content
The purpose of this utility model is to overcome the defect existing in prior art, provides a kind of chimney anti-gypsum rain device, avoids the generation of " gypsum rain " phenomenon, reduces environmental pollution.
For achieving the above object, the technical solution of the utility model has been to provide the anti-gypsum rain device of a kind of chimney, be arranged on desulfurization tower top chimney, comprise the top cover that covers at chimney top outlet, described top cover is the taper that Open Side Down, the below of described top cover is provided with exhaust opening, the outside of described chimney is fixedly installed side shield, the upper end of described side shield is provided with the secondary baffle ring plate extending to the inside, and the vertical height of described secondary baffle ring plate is greater than the vertical height of described exhaust opening.
As preferably, the height of the peak of described secondary baffle ring plate is less than the height of described top cover peak, prevents that upper-level winds from, to the head-on collision to flue gas in chimney, affecting the discharge of flue gas.
As preferably, between described side shield and described chimney, be provided with collecting tank, the height of described collecting tank, lower than the height of described exhaust opening, is realized the recovery of gypsum drop by collecting tank.
As preferably, between described collecting tank and described chimney, by slurries return pipe, be connected, the gypsum drop of recovery is delivered in chimney and is again utilized.
As preferably, the junction of described slurries return pipe and described chimney is near the bottom of described chimney, low as much as possible by reentry point position is arranged, to prevent that the secondary of flue gas from carrying.
As preferably, described slurries return pipe comprises the vertical section that is connected with described collecting tank, be communicated with the segmental arc of described vertical section and described chimney.
Advantage of the present utility model and beneficial effect are: by flue gas at the eddy circulating at top cover place with realize the recovery of gypsum drop at the secondary collision at secondary baffle ring plate place, reduce the content of gypsum drop in flue gas, avoid " gypsum rain " generation of phenomenon, reduces environmental pollution.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Wherein: 1, chimney; 2, top cover; 3, side shield; 4, secondary baffle ring plate; 5, collecting tank; 6, slurries return pipe.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, the anti-gypsum rain device of a kind of chimney 1, be arranged on desulfurization tower top chimney 1, comprise the top cover 2 that covers at chimney 1 top exit, described top cover 2 is the taper that Open Side Down, the below of described top cover 2 is provided with exhaust opening, the outside of described chimney 1 is fixedly installed side shield 3, the upper end of described side shield 3 is provided with the secondary baffle ring plate 4 extending to the inside, the vertical height of described secondary baffle ring plate 4 is greater than the vertical height of described exhaust opening, when flue gas arrives chimney 1 top, first collide and produce eddy circulating with conical top cover 2, realizing the first order reclaims, exit design secondary baffle ring plate 4 carries out secondary recovery.
As shown in Figure 1, the height of the peak of described secondary baffle ring plate 4 is less than the height of described top cover 2 peaks, prevents that upper-level winds from, to the head-on collision to steel stack 1 interior flue gas, affecting the discharge of flue gas.
As shown in Figure 1, between described side shield 3 and described chimney 1, be provided with collecting tank 5, the height of described collecting tank 5 is lower than the height of described exhaust opening.
As shown in Figure 1, between described collecting tank 5 and described chimney 1, by slurries return pipe 6, be connected, described slurries return pipe 6 comprises the vertical section that is connected with described collecting tank 5, be communicated with the segmental arc of described vertical section and described chimney 1, the junction of described slurries return pipe 6 and described chimney 1 is near the bottom of described chimney 1, the gypsum drop reclaiming enters collecting tank 5, slurries return pipe 6 by low level returns in desulfurizing tower, reentry point position is low as much as possible, to prevent that the secondary of flue gas from carrying.
In addition Q235 steel outer lining glass flake or rubber slab for material of the present utility model, also can adopt the stainless steel of SAF2507 or better material, prevents the corrosion of flue gas to canopy.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. the anti-gypsum rain device of chimney, be arranged on desulfurization tower top chimney, it is characterized in that: comprise the top cover that covers at chimney top outlet, described top cover is the taper that Open Side Down, the below of described top cover is provided with exhaust opening, the outside of described chimney is fixedly installed side shield, and the upper end of described side shield is provided with the secondary baffle ring plate extending to the inside, and the vertical height of described secondary baffle ring plate is greater than the vertical height of described exhaust opening.
2. the anti-gypsum rain device of chimney as claimed in claim 1, is characterized in that: the height of the peak of described secondary baffle ring plate is less than the height of described top cover peak.
3. the anti-gypsum rain device of chimney as claimed in claim 1 or 2, is characterized in that: between described side shield and described chimney, be provided with collecting tank, the height of described collecting tank is lower than the height of described exhaust opening.
4. the anti-gypsum rain device of chimney as claimed in claim 3, is characterized in that: between described collecting tank and described chimney, by slurries return pipe, be connected.
5. the anti-gypsum rain device of chimney as claimed in claim 4, is characterized in that: the junction of described slurries return pipe and described chimney is near the bottom of described chimney.
6. the anti-gypsum rain device of chimney as claimed in claim 4, is characterized in that: described slurries return pipe comprises the vertical section that is connected with described collecting tank, be communicated with the segmental arc of described vertical section and described chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584277.4U CN203533587U (en) | 2013-09-22 | 2013-09-22 | Gypsum rain preventing device for chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584277.4U CN203533587U (en) | 2013-09-22 | 2013-09-22 | Gypsum rain preventing device for chimney |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203533587U true CN203533587U (en) | 2014-04-09 |
Family
ID=50419788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320584277.4U Expired - Lifetime CN203533587U (en) | 2013-09-22 | 2013-09-22 | Gypsum rain preventing device for chimney |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203533587U (en) |
-
2013
- 2013-09-22 CN CN201320584277.4U patent/CN203533587U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214400 Jiangsu city of Wuxi province Jiangyin City Gu Shan Zhen Guo Dong Cun Patentee after: JIANGSU YIJIN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 214400 Jiangsu city of Wuxi province Jiangyin City Gu Shan Zhen Guo Dong Cun Patentee before: Jiangsu Yijin Environmental Protection Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |