CN2372046Y - Flue desulfurizer equipment by using cyclic fluidization method - Google Patents
Flue desulfurizer equipment by using cyclic fluidization method Download PDFInfo
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- CN2372046Y CN2372046Y CN 99230866 CN99230866U CN2372046Y CN 2372046 Y CN2372046 Y CN 2372046Y CN 99230866 CN99230866 CN 99230866 CN 99230866 U CN99230866 U CN 99230866U CN 2372046 Y CN2372046 Y CN 2372046Y
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- absorbent
- absorption tower
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- dust collecting
- collecting device
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Abstract
The utility model discloses a flue desulfurizer equipment by using cyclic fluidization method, which comprises a sulfur dioxide absorbing tower and a circulating dust collector special for desulphurization. The utility model has the advantages of high utilizing rate of absorbent, low requirement for the absorbent, high efficiency on desulphurizationm no scale formation, no clogging, no corrosion non-corroding, high system reliability, simple performance management, lower cost and running cost, etc. The utility model is suitable for removing sulphur for the exhaust gas of larger, middle and small industrial plants with various scales comprising power station boilers.
Description
The utility model relates to a kind of ciculation fluidized method flue gas desulfur device, belongs to environmental protection technical field, is applicable to the sulphur removal of commercial plant discharged flue gas, is specially adapted to the exhaust gas desulfurization technology of thermal power plant combustion apparatus.
Existing a kind of ciculation fluidized flue gas desulfur device is to make the hot flue gas of the commercial plant discharging desulfuration absorbing tower of flowing through, Ta Nei be fluidised absorbent and contact mixing with the reactant that recycles, after these solid reactants flowed out the absorption tower with flue gas then, a part was sent back in the absorption tower again and is recycled after the original dust arrester of the steam generator system that is arranged at its rear portion (mostly being electric precipitator) is collected; Because the flue-gas temperature that burner is discharged must spray into desuperheating water and suitably reduce the absorption that the cigarette temperature is beneficial to sour gas often up to 120～180 ℃ in tower.This device is compared with other desulfurizer, can bring into play the advantage of efficient low expense preferably, and operational reliability is also higher.But the following shortcoming that this device exists has hindered the reduction of its operating cost and has caused the limitation of using:
1, the material circulating and recovering relies on original dust arrester of steam generator system such as electric precipitator, and desulphurization system has changed the ratio resistance of flue dust, must expend bigger improvement expenses for making dust arrester simultaneous adaptation desulfurization operating mode;
2, the nozzle of desuperheating water is positioned at the top of dry state absorbent and recycle stock import, thereby is unfavorable for the raising of absorbent and recycle stock absorbent properties, and its absorbent utilization rate is relatively low.
The purpose of this utility model is to overcome the above-mentioned shortcoming of existing apparatus, and a kind of CFA flue gas recirculation fluidisation desulfurizer is provided, and the utilization rate with further raising system's desulfuration efficiency and absorbent further reduces system cost and operation expense.
The technical solution of the utility model is: special-purpose cyclic dust collecting device is set in desulfurizer, the top on absorption tower is connected with special-purpose cyclic dust collecting device, the downside of special-purpose cyclic dust collecting device links by the material inlet port on device for transporting objects and absorption tower, the opposite side of special-purpose cyclic dust collecting device has the exhaust gases passes that connects the downstream deduster, to ensure the operational efficiency of desulfurizer itself, the operating mode of the original dust arrester of steam generator system (downstream deduster) is remained unchanged.
It is as follows that the utility model is described in further detail in conjunction with the accompanying drawings and embodiments:
Fig. 1 is that the utility model device connects schematic diagram with process system.
Fig. 2 is the utility model embodiment one desulfurizer structural representation.
Fig. 3 is the utility model embodiment two desulfurizer structural representations.
Device name is shown in the figure: 1, combustion apparatus (as boiler); 2, ciculation fluidized method flue gas desulfur device; 3, absorption tower; 4, special-purpose cyclic dust collecting device; 5, device for transporting objects; 6, smoke inlet; 7, desuperheating water enters pipe; 8, absorbent passage; 9, absorbent container; 10, downstream deduster exhaust gases passes; 11, downstream deduster; 12, air-introduced machine; 13, chimney; 14, slagging channel; 15, recycle stock input channel; 16, absorption tower charging aperture; 17, desuperheating water nozzle; 18, absorbent import.
In desulfurizer of the present utility model, sulfur dioxide absorption tower (3) are provided with flue gas inlet port (6) and material inlet port (16) and absorbent inlet (18), and the absorption tower downside is connected with desuperheating water and enters pipe (7); Special-purpose cyclic dust collecting device (4) is set in this desulfurizer, the top on absorption tower (3) is connected with special-purpose cyclic dust collecting device (4), the downside of special-purpose cyclic dust collecting device (4) links by the material inlet port (16) of device for transporting objects (5) with absorption tower (3), and the opposite side of special-purpose cyclic dust collecting device (4) has the exhaust gases passes (10) that connects the downstream deduster; Device for transporting objects (5) also links with slagging channel (14), and absorbent and recycle stock enter the absorption tower can also have material inlet port (16).
In the sulfur removal technology system that is connected with the utility model device shown in Figure 1, hot flue gas is discharged from burner (1), send in the desulfuration absorbing tower (3) of this device (2) through smoke inlet (6), in the absorption tower, SO2 in the flue gas, the solid reactant of solid flying dust and absorbent and circulating and recovering be fluidization contact mix after, discharge from top, absorption tower, solid reactant separates with flue gas in special-purpose cyclic dust collecting device (4), the major part of solid reactant turns back to through device for transporting objects (5) and continues in the absorption tower (3) to utilize, and an a small amount of part is discharged through slagging channel (14); The flue gas that separates then is sent to the original deduster of steam generator system (11) through exhanst gas outlet (10) and purifies after air-introduced machine (12) and chimney (13) are discharged into atmosphere; Desuperheating water through desuperheating water enter pipe (7) enter the absorption tower by desuperheating water nozzle (17) ejection to reduce flue-gas temperature and humidification absorbent and circular response thing; Absorbent is sent through absorbent passage (8) by absorbent container (9) and is entered the absorption tower; Special-purpose cyclic dust collecting device (4) can be the cyclone type dust-precipitator, and absorbent and recycle stock can be imported the absorption tower with general solids dispenser.
The desulfurizer structure of the utility model embodiment one turns back to the solid reactant that recycles in the absorption tower and all enters absorption tower (3) from same charging aperture (16) through the absorbent that absorbent passage (8) is sent into through device for transporting objects (5) as shown in Figure 2.
The desulfurizer structure of the utility model embodiment two as shown in Figure 3, turn back to the solid reactant that recycles in the absorption tower through device for transporting objects (5) and enter absorption tower (3) from absorption tower charging aperture (16), the absorbent of sending into through absorbent passage (8) then enters absorption tower (3) from the absorbent import (18) that is provided with separately.
Compare with existing sulfur removal technology device, the strong point that the utility model has wet type desulfurizing technology high desulfurization rate, low consumption of raw materials and dry type desulfurizing technology concurrently need not cigarette Wen Zaire, dry state accessory substance disposal costs is low, the main feature in commercial Application is:
1) desulfuration efficiency can be higher than 95%, and is close with traditional Wet Limestone/gypsum technology; Operation can Be higher than other sulfur removal technology by property;
2) designs simplification, floor space is little, and equipment manufacturing cost is low; Absorbent utilization rate height, non-scaling is stifled Plug does not corrode, and operation and maintenance cost is economized;
3) dust arrester of original steam generator system need not to transform;
4) need not to be provided with the flue gas reheat device, do not have secondary atmosphere pollution; The dry state accessory substance can together be handled with original burning flying dust, need not to establish in addition dewatering system;
5) lower to absorbent lime ingredient requirement, be easy to low-cost buying;
6) be applicable to high, medium and low all kinds of sulfur-bearing coal.
In sum, the utlity model has absorbent utilization rate height, require low to absorbent, the desulfuration efficiency height, non-scaling stops up and does not corrode, the system reliability height, and operational administrative is simple and easy, advantages such as cost and operating cost are cheap are applicable to the commercial plant flue gas desulfurization of the large, medium and small various scales that comprise station boiler.
Claims (3)
1, a kind of ciculation fluidized method flue gas desulfur device, it includes the sulfur dioxide absorption tower (3) of the hot gas cleaning that makes the commercial plant discharging, and this tower is provided with flue gas inlet port (6) and material inlet port (16) and absorbent inlet (18); The absorption tower downside is connected with desuperheating water and enters pipe (7), it is characterized in that, the special-purpose cyclic dust collecting device (4) of desulfurization is set in desulfurizer, the top on absorption tower (3) is connected with special-purpose cyclic dust collecting device (4), the downside of special-purpose cyclic dust collecting device (4) links by the material inlet port (16) of device for transporting objects (5) with absorption tower (3), and the opposite side of special-purpose cyclic dust collecting device (4) has the exhaust gases passes (10) that connects the downstream deduster.
2, device according to claim 1 is characterized in that, the special cyclic dust collecting device (4) that is provided with can be the cyclone type mechanical dust collector.
3, device according to claim 1 is characterized in that, absorbent and recycle stock enter the absorption tower can have material inlet port (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99230866 CN2372046Y (en) | 1999-01-28 | 1999-01-28 | Flue desulfurizer equipment by using cyclic fluidization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99230866 CN2372046Y (en) | 1999-01-28 | 1999-01-28 | Flue desulfurizer equipment by using cyclic fluidization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2372046Y true CN2372046Y (en) | 2000-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99230866 Expired - Fee Related CN2372046Y (en) | 1999-01-28 | 1999-01-28 | Flue desulfurizer equipment by using cyclic fluidization method |
Country Status (1)
| Country | Link |
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| CN (1) | CN2372046Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647148A (en) * | 2019-02-28 | 2019-04-19 | 兖矿集团有限公司 | A kind of circulating fluidized bed boiler flue gas desulphurization system and its processing method |
-
1999
- 1999-01-28 CN CN 99230866 patent/CN2372046Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647148A (en) * | 2019-02-28 | 2019-04-19 | 兖矿集团有限公司 | A kind of circulating fluidized bed boiler flue gas desulphurization system and its processing method |
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| 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 |