CN2487439Y - Impact rotating flow type desulfurizing duster - Google Patents
Impact rotating flow type desulfurizing duster Download PDFInfo
- Publication number
- CN2487439Y CN2487439Y CN 00225370 CN00225370U CN2487439Y CN 2487439 Y CN2487439 Y CN 2487439Y CN 00225370 CN00225370 CN 00225370 CN 00225370 U CN00225370 U CN 00225370U CN 2487439 Y CN2487439 Y CN 2487439Y
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- China
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- flue gas
- staged
- eddy flow
- extraction device
- blender
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Abstract
The utility model relates to an impact rotating flow type desulfurizing duster, wherein on the basis of Venturi rotating-flow plate duster, an impeller type diversion mixer is arranged at the bottom of a vertical Venturi and a stepped diversion plate is arranged between the two stage rotating-flow plates of a rotating-flow plate tower; a biconical flue gas rectifying device is arranged inside the demister positioned at a flue gas outlet; moreover, the utility model is designed into an integral structure. Through effects such as turbulent flow, collision, condensation, neutralization, adsorption, mass transfer and heat transfer, soot and SO2 can be caught and absorbed simultaneously; thereby flue gas can reach the environmental protection standard stipulated by the state after treatment.
Description
The utility model relates to a kind of desulfurization and dedusting integrated device with wet dust removal device, especially high-efficiency low-resistance of desulfurizing function.
With numb stone is the wet dust removal device of material, and cost is low, simple in structure, corrosion-resistant, reliable, is widely used in the flue gas ash removal of various civilian, industry and station boiler.But along with the policy execution of country to the SO2 control of coal-fired flue-gas discharging, originally major function is that the product of dedusting can't satisfy the desulfurization requirement.The desulfurization type product of the numerous and confused development of new of many researchers, what reach the practical stage at present has types such as impulse type water bath desulfurization division dirt device and rotating stream tray scrubber desulfurizing dust-collector (being divided into two kinds of stainless steel column plate and pocked stone pagoda plates again according to eddy flow sheet material matter).Stone matter impulse type water bath desulfurization dust removing cardinal principle is to impact water body with high velocity air, and gas-liquid is acutely mixed, and reaches the desulfurization and dedusting purpose, and this type only gone up supporting use at miniature boiler (below the 20t/h) at present; The rotating stream tray scrubber desulfurizing dust-collector, stainless steel column plate type rotating stream tray scrubber, unit volume is most effective, and is applicable to the dense bigger boilers of the initial dirt of flue gas such as fluidized bed furnace, but generally is no more than 3 years the service life of stainless steel column plate; Fiber crops slabstone type rotating stream tray scrubber treatment effeciency is relatively low, and the fluidized bed furnace boiler smoke is generally needed supporting low-resistance dry-type dedusting equipment, and floor space is bigger.
The purpose of this utility model provides a kind of desulfurization type wet dust removal device, be applicable to that 1-220t/h coal-burning boiler desulfurization and dedusting is with other coal-fired industrial furnace smoke gas treatments and to having the transformation of general gallet water curtain dust collector and venturi water film deduster now, to improve its dedusting and desulfuration efficiency, reach the environmental protection new demand.
The purpose of this utility model is achieved in that on the basis of venturi and rotating stream tray scrubber dust arrester, increases the demister of vane type water conservancy diversion blender, staged deflector and reinforcement.Vane type water conservancy diversion blender is installed in the vertical type venturi port of export, and the staged deflector is installed between the two-stage eddy flow plate in the rotating stream tray scrubber, and the demister of smoke outlet increases biconial flue gas fairing.The utility model apply in a flexible way impact water bath dedusting technology and rotational flow dust-removing desulfur technology are not increasing resistance, guarantee under the prerequisite of efficient the two organically to be combined.
The utility model makes flue gas impact vane type water conservancy diversion blender, the SO in the gas in upright venturi exit
2Fully mix with alkaline water smoke with flue dust, flue gas is through vane type water conservancy diversion blender water conservancy diversion, and the general impingement dust collector of drag losses is few; In the eddy flow tower, adopt the staged deflector, the drag losses of this section is lacked than general rotating stream tray scrubber device again.Therefore, the drag losses of whole device only is equivalent to conventional one-level lector device or conventional one-level spiral-flow type dust arrester.Flue gas demist section has also designed the biconial rectifier except that conventional vortex-flow and defrosting plate and ring baffle, by contraction-dilating effect, not only reduce resistance, and has guaranteed to remove fog effect, guarantees that air-introduced machine is not with water.
Owing to adopt such scheme, this device is at import flue gas flow rate 18-22m/s, Venturi throat flue gas flow rate 50-60m/s, and about 80 ℃ of flue gas temperature drop, flue gas resistance loses 1000-1500Pa, efficiency of dust collection 96%-99.8%, desulfuration efficiency 60%-90%.
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the vertical section structural map of embodiment.
Flue gas enters from upright Venturi (1) top, and 8 shower nozzles (2) are equipped with on Venturi tube top, and alkalies acutely mixes in Venturi tube throat with flue gas for the first time; Upright Venturi tube outlet flue gas shock surface is a vane type water conservancy diversion blender (3), vane type water conservancy diversion blender is an integral structure with upright Venturi tube, outer surface is two cambered surface tapers of throwing, and have a 4-8 bar involute guiding gutter, flue gas here acutely mixes for the second time with alkalies, and make the flue gas generation rotatablely move the eddy flow tower of access to plant; At the eddy flow tower, flue gas is earlier through the refining numb stone eddy flow plate (4) of one-level, again through one group of staged deflector (5), the staged deflector keeps the 100-200mm gap apart from the desulfation dust-extraction device inwall, there are 6 secondary feed tubes (6) staged deflector top, the flue gas demister mainly is made up of dehydration eddy flow plate (7), ring baffle (8) and biconial rectifier (9), and biconial rectifier awl end outer rim is apart from desulfation dust-extraction device inwall 100-200mm.
Example surplus the utility model implements ten at home.1 6t/h chain grate boiler of Hunan Province healthcare hospital for women ﹠ children, smoke treatment amount 17930m
3/ h, vertical type Venturi tube (1) inlet diameter 600mm, throat diameter 400mm, the shower nozzle (2) of 8 diameter 15mm is equipped with on top, and the outlet flue gas impacts vane type water conservancy diversion blender (3), and the flue gas after the rectification enters the eddy flow tower along tangent line.Its bottom is the refining numb stone eddy flow plate (4) of one-level, setting angle is 45 °, the middle part is 12 grades of staged deflectors (5), the staged deflector keeps the 200mm gap apart from the desulfation dust-extraction device inwall, there is the secondary feed tube (6) of 6 diameter 25mm staged deflector top, the demister on top comprises one-level dehydration eddy flow plate (7), ring baffle (8) and biconial rectifier (9), the setting angle of one-level dehydration eddy flow plate (7) is 30 °, ring baffle (8) is given prominence to eddy flow inner wall of tower 100mm, and biconial rectifier (9) is apart from eddy flow inner wall of tower 200mm.After this device built up operation, through environmental administration's test, desulfuration efficiency was 75.3%, and the SR loss has reached national specified discharge standard for 980Pa.
Claims (4)
1, a kind of impact spiral-flow type desulfation dust-extraction device, it is characterized in that on the basis of venturi eddy flow plate dust arrester, increase the demister of vane type water conservancy diversion blender, staged deflector and reinforcement, vane type water conservancy diversion blender is installed in the vertical type venturi port of export, the staged deflector is installed between the two-stage eddy flow plate in the rotating stream tray scrubber, and the demister of smoke outlet increases biconial flue gas fairing.
2, impact spiral-flow type desulfation dust-extraction device according to claim 1, it is characterized in that upright Venturi tube and vane type water conservancy diversion blender are integral structure, upright Venturi tube flue gas shock surface is a vane type water conservancy diversion blender, vane type water conservancy diversion blender is that a pair of is thrown the cambered surface pyramidal structure, and the surface has 4-8 bar involute guiding gutter.
3, impact spiral-flow type desulfation dust-extraction device according to claim 1, it is characterized in that eddy flow plate and staged deflector integral structure in the rotating stream tray scrubber, the bottom is an one-level eddy flow plate, the centre is the staged deflector, top is dehydration eddy flow plate, and the staged deflector keeps the 100-200mm gap apart from the desulfation dust-extraction device outer wall.
4, impact spiral-flow type desulfation dust-extraction device according to claim 1 is characterized in that demister is dehydration eddy flow plate, ring baffle and biconial rectifier combining structure, and biconial rectifier awl end outer rim is apart from desulfation dust-extraction device inwall 100-200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00225370 CN2487439Y (en) | 2000-08-07 | 2000-08-07 | Impact rotating flow type desulfurizing duster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00225370 CN2487439Y (en) | 2000-08-07 | 2000-08-07 | Impact rotating flow type desulfurizing duster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2487439Y true CN2487439Y (en) | 2002-04-24 |
Family
ID=33589489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00225370 Expired - Fee Related CN2487439Y (en) | 2000-08-07 | 2000-08-07 | Impact rotating flow type desulfurizing duster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2487439Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102805981A (en) * | 2012-09-01 | 2012-12-05 | 山西平朔煤矸石发电有限责任公司 | Dust collector for slag discharging system of boiler |
| CN106861400A (en) * | 2017-03-07 | 2017-06-20 | 张西珍 | The double pressure desulfurizing towers of gas-water separation formula and annular mobile brick and tile kiln |
-
2000
- 2000-08-07 CN CN 00225370 patent/CN2487439Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102805981A (en) * | 2012-09-01 | 2012-12-05 | 山西平朔煤矸石发电有限责任公司 | Dust collector for slag discharging system of boiler |
| CN106861400A (en) * | 2017-03-07 | 2017-06-20 | 张西珍 | The double pressure desulfurizing towers of gas-water separation formula and annular mobile brick and tile kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |