CN203507812U - Single-tower double-medium desulfurizer - Google Patents
Single-tower double-medium desulfurizer Download PDFInfo
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- CN203507812U CN203507812U CN201320646740.3U CN201320646740U CN203507812U CN 203507812 U CN203507812 U CN 203507812U CN 201320646740 U CN201320646740 U CN 201320646740U CN 203507812 U CN203507812 U CN 203507812U
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Abstract
The utility model provides a single-tower double-medium desulfurizer. The single-tower double-medium desulfurizer comprises a tower body, wherein a smoke inlet is arranged on the lateral wall of the lower part of the tower body; a chimney is arranged at the top of the tower body; a demister is arranged inside the tower body below the chimney; an upper level treatment area and a lower level treatment area are arranged inside the tower body below the demister; a smoke baffle plate is arranged between the upper level treatment area and the lower level treatment area; a plurality of bumps and a plurality of communicated grooves are arranged on the smoke baffle plate; a smoke through hole is formed in the lateral wall of the upper part of each bump; spraying devices are respectively arranged at the upper parts inside the upper level treatment area and the lower level treatment area; the spraying devices are connected with slurry tanks through a circulation pipeline with a circulation pump. The single-tower double-medium desulfurizer has the beneficial effects that two mediums can be desulfurized through an absorption tower; the purpose of removing more sulfur dioxide can be achieved in a non-interfering condition, so that the emission on standard can be realized. The single-tower double-medium desulfurizer has the advantages of high stability and low investment and operation.
Description
Technical field
The utility model relates to the two medium desulfurizers of a kind of single tower.
Background technology
The sulfur removal technology of current existing comparative maturity mainly contains wet limestone-gypsum FGD technique, magnesium oxide method sulfur removal technology, ammonia desulfurizing process.Wherein wet limestone-gypsum FGD process application is the most extensive, and occupation rate of market is more than 85%, and its desulfuration efficiency, generally more than 95%, is up to 98%, and as improved its desulfuration efficiency, investment and operating cost are by growth at double; Its absorbent of magnesium oxide method sulfur removal technology is magnesia powder, its desulfuration efficiency can reach and be up to more than 99%, but because magnesia mainly concentrates on the Shandong Peninsula and the peninsula, Liaoning, be subject to the restriction of the regional limits of absorbent and the high expensive of absorbent, the Engineering Bureau of its application is sex-limited larger; Its its desulfuration efficiency of ammonia desulfurizing process can reach and be up to more than 99%, but complex process, its investment and cost are very high, have all the time the escaping of ammonia secondary pollution, therefore only have part to have part steel mill and the chemical enterprise of deposed ammonia to select ammonia desulfurizing process.
According to the requirement of atmosphere pollutants emission standards > > GB13223-2011, < < thermal power plant, coal-fired boiler tail gas qualified discharge concentration is 100mg/Nm
3, key area is 50mg/Nm
3.In some projects, in the project of the sulphur coal that especially burns, it is very difficult that desulfurizer is realized the qualified discharge of sulfur dioxide.
Summary of the invention
For solving above technical deficiency, it is a kind of simple in structure that the utility model provides, and stability is high, saves the two medium desulfurizers of a kind of single tower of operating cost, is particularly useful for processing sulphur coal boiler exhaust gas.
The utility model is realized by following measures:
The two medium desulfurizers of a kind of single tower of the present utility model, comprise tower body, on tower body lower sides, be provided with gas approach, tower body top is provided with chimney, in the tower body of chimney below, be provided with demister, in the tower body of described demister below, be provided with upper and lower bi-level treatment region, between bi-level treatment region, be provided with flue gas deflection plate, on described flue gas deflection plate, be provided with some projections and some grooves being connected, in the upper portion side wall of described projection, be provided with exhaust hole; Bi-level treatment region internal upper part is provided with spray equipment, and spray equipment is connected with slurry pool by the circulation line with circulating pump.
Above-mentioned bi-level treatment region is divided into the coagulation region of bottom and the two stage treatment region on top, the slurry pool that spray equipment I in described coagulation region connects is the limestone/gypsum slurry pool that is arranged on tower body bottom, and gas approach is on the tower body sidewall between limestone/gypsum slurry pool and spray equipment I.
The slurry pool that spray equipment II in above-mentioned two stage treatment region connects is the sodium hydroxide slurry pond being arranged on outside tower body, and the liquid return hole in described sodium hydroxide slurry pond connects the groove on flue gas deflection plate by circulation line.
The beneficial effects of the utility model are: on an absorption tower, realize two media desulfurization, in non-interfering situation, reach the object that removes more sulfur dioxide, realize qualified discharge.Stability is high, and investment and operating cost are low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 be in Fig. 1 A-A to cross-sectional view.
Fig. 3 be in Fig. 1 B-B to cross-sectional view.
Wherein: 1 chimney, 2 demisters, 3 spray equipment II, 4 projections, 5 grooves, 6 spray equipment I, 7 gas approach, 8 sodium hydroxide slurry ponds, 9 limestone/gypsum slurry pools, 10 circulating pumps, 11 exhaust holes.
The specific embodiment
As shown in Figure 1, the two medium desulfurizers of a kind of single tower of the present utility model, comprise tower body, on tower body lower sides, be provided with gas approach 7, tower body top is provided with chimney 1, in the tower body of chimney 1 below, be provided with demister 2, in the tower body of demister 2 belows, be provided with upper and lower bi-level treatment region, between bi-level treatment region, be provided with flue gas deflection plate, as shown in Figure 2,3, on flue gas deflection plate, be provided with some protruding 4 and some grooves being connected 5, in the upper portion side wall of projection 4, be provided with exhaust hole 11; Bi-level treatment region internal upper part is provided with spray equipment, and spray equipment is connected with slurry pool by the circulation line with circulating pump 10.Wherein bi-level treatment region is divided into the coagulation region of bottom and the two stage treatment region on top, and coagulation region adopts lime stone slurry as absorbent, the most sulfur dioxide in desulfurization fume.Two stage treatment region adopts sodium hydroxide lye as absorbent, continues the remaining sulfur dioxide in desulfurization fume.In the utility model, adopt two kinds of absorbents of a tower, and the mode of two kinds of absorbent isolated operations, to adapt to variation on unit load and the variation of sulfur dioxide in flue gas concentration, guarantee the qualified discharge of sulfur dioxide.
The slurry pool that spray equipment I 6 in coagulation region connects is the limestone/gypsum slurry pool 9 that is arranged on tower body bottom, and gas approach 7 is on the tower body sidewall between limestone/gypsum slurry pool 9 and spray equipment I 6.Under the effect of circulating pump 10, limestone/gypsum slurries circulate.The slurry pool that spray equipment II 3 in two stage treatment region connects is the sodium hydroxide slurry pond 8 being arranged on outside tower body, the liquid return hole in sodium hydroxide slurry pond 8 connects the groove 5 on flue gas deflection plate by circulation line, under the effect of circulating pump 10,, sodium hydroxide slurry circulates.
Its operation principle is: untreated former flue gas the side on absorption tower enter in tower on flow, spray equipment I 6 in coagulation region downwards spray draws up next limestone/gypsum slurries from limestone/gypsum slurry pool 9, sulfur dioxide in flue gas is absorbed by limestone/gypsum slurries, in limestone/gypsum slurry pool 9, complete further absorption tower and oxidation, wherein absorption tower agitator is mainly the effect of sowing oxidation air and preventing slurries precipitation, the effect of oxidation air is to be calcium sulfate by calcium sulfite forced oxidation, and then be converted into gypsum, facilitate subsequent treatment.Interior the occurred chemical reaction of limestone/gypsum slurry pool 9 requires its pH value to be controlled in 5.5 ~ 6.0 interval range, and if pH value is below or above this interval value, calcium sulfite and calcium sulfate are separated out respectively, causes fouling in tower, and the system that affects is normally moved.
In the flue gas of crossing through coagulation regional processing, still contain sulfur dioxide, flue gas enters into two stage treatment region through the exhaust hole 11 in flue gas deflection plate projection 4, spray equipment II 3 in two stage treatment region is spray sodium hydroxide slurry downwards, sodium hydroxide slurry continues to absorb the sulfur dioxide in flue gas, then fall in the groove 5 on flue gas deflection plate, finally by circulation line, flow in sodium hydroxide slurry pond 8.Because cigarette is emerged in the side of projection 4, exhaust hole 11 positions are higher than groove 5, and there is certain jet power, so from the fallen sodium hydroxide slurry in top can the limestone/gypsum slurries below exhaust hole 11 flows into, therefore can prevent that sodium hydroxide lye from entering into limestone/gypsum slurries, affect the desulfurization of lime stone/gypsum.
Sodium hydroxide lye two-grade desulfurizing is essentially auxiliary desulfurization, in the situation that sulfur in boiler at low load operation or ature of coal is on the low side, can only start coagulation region.Only have when coagulation region cannot be realized in the situation of qualified discharge, open two stage treatment region, because absorbent is that NaOH is highly basic, in the situation that having water, directly react with sulfur dioxide in flue gas, reaction speed is fast, and desulfurized effect is good.In the utility model, adopt two kinds of absorbents of a tower, and the mode of two kinds of absorbent isolated operations, to adapt to variation on unit load and the variation of sulfur dioxide in flue gas concentration, guarantee the qualified discharge of sulfur dioxide.
The above is only the preferred embodiment of this patent; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the art of this patent principle; can also make some improvement and replacement, these improvement and replacement also should be considered as the protection domain of this patent.
Claims (3)
1. two medium desulfurizers of a single tower, comprise tower body, on tower body lower sides, be provided with gas approach, tower body top is provided with chimney, in the tower body of chimney below, be provided with demister, it is characterized in that: in the tower body of described demister below, be provided with upper and lower bi-level treatment region, between bi-level treatment region, be provided with flue gas deflection plate, on described flue gas deflection plate, be provided with some projections and some grooves being connected, in the upper portion side wall of described projection, be provided with exhaust hole; Bi-level treatment region internal upper part is provided with spray equipment, and spray equipment is connected with slurry pool by the circulation line with circulating pump.
2. two medium desulfurizers of single tower according to claim 1, it is characterized in that: described bi-level treatment region is divided into the coagulation region of bottom and the two stage treatment region on top, the slurry pool that spray equipment I in described coagulation region connects is the limestone/gypsum slurry pool that is arranged on tower body bottom, and gas approach is on the tower body sidewall between limestone/gypsum slurry pool and spray equipment I.
3. two medium desulfurizers of single tower according to claim 2, it is characterized in that: the slurry pool that the spray equipment II in described two stage treatment region connects is the sodium hydroxide slurry pond being arranged on outside tower body, and the liquid return hole in described sodium hydroxide slurry pond connects the groove on flue gas deflection plate by circulation line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646740.3U CN203507812U (en) | 2013-10-21 | 2013-10-21 | Single-tower double-medium desulfurizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646740.3U CN203507812U (en) | 2013-10-21 | 2013-10-21 | Single-tower double-medium desulfurizer |
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| CN203507812U true CN203507812U (en) | 2014-04-02 |
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| CN201320646740.3U Expired - Fee Related CN203507812U (en) | 2013-10-21 | 2013-10-21 | Single-tower double-medium desulfurizer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258721A (en) * | 2014-09-23 | 2015-01-07 | 东方电气集团东方锅炉股份有限公司 | Low-energy-consumption and ultraclean-emission flue gas desulfurization method and device |
| CN112023626A (en) * | 2020-08-01 | 2020-12-04 | 内蒙古高原蓝节能环保科技有限公司 | Flue gas treatment system and process |
| CN114733338A (en) * | 2022-04-27 | 2022-07-12 | 江苏钜联环境技术有限公司 | Ternary lithium cell discharges waste gas and administers and uses high-efficient spraying system |
| CN112023626B (en) * | 2020-08-01 | 2024-05-31 | 内蒙古高原蓝节能环保科技有限公司 | Flue gas treatment system and process |
-
2013
- 2013-10-21 CN CN201320646740.3U patent/CN203507812U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258721A (en) * | 2014-09-23 | 2015-01-07 | 东方电气集团东方锅炉股份有限公司 | Low-energy-consumption and ultraclean-emission flue gas desulfurization method and device |
| CN112023626A (en) * | 2020-08-01 | 2020-12-04 | 内蒙古高原蓝节能环保科技有限公司 | Flue gas treatment system and process |
| CN112023626B (en) * | 2020-08-01 | 2024-05-31 | 内蒙古高原蓝节能环保科技有限公司 | Flue gas treatment system and process |
| CN114733338A (en) * | 2022-04-27 | 2022-07-12 | 江苏钜联环境技术有限公司 | Ternary lithium cell discharges waste gas and administers and uses high-efficient spraying system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Mulberry road Licheng District 250010 in Shandong city of Ji'nan province 58-3 Patentee after: TAIYING ENVIRONMENT ENGINEERING CO.,LTD. Address before: Mulberry road Licheng District 250000 in Shandong city of Ji'nan province 58-3 Room 501 No. Patentee before: SHANDONG TAIYING ENVIRONMENT ENGINEERING Co.,Ltd. |
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Effective date of registration: 20191106 Granted publication date: 20140402 |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221106 Granted publication date: 20140402 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 |
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| CF01 | Termination of patent right due to non-payment of annual fee |