CN203533589U - Dust removing and desulfurizing device for coal-fired boiler - Google Patents
Dust removing and desulfurizing device for coal-fired boiler Download PDFInfo
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- CN203533589U CN203533589U CN201320685281.XU CN201320685281U CN203533589U CN 203533589 U CN203533589 U CN 203533589U CN 201320685281 U CN201320685281 U CN 201320685281U CN 203533589 U CN203533589 U CN 203533589U
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Abstract
The utility model discloses a dust removing and desulfurizing device for a coal-fired boiler. The dust removing and desulfurizing device for the coal-fired boiler comprises a flue communicated with the boiler, and is characterized in that the flue is communicated with a draught device; the draught device is communicated with a spraying system and a dust removing system respectively; the spraying system is communicated with a chimney; the dust removing system is communicated with a cinder valve and comprises a multicyclone dust remover communicated with both the draught device and the cinder valve. The dust removing and desulfurizing device for the coal-fired boiler is rational in design and simple in structure, realizes desulfurization of the smoke after dust removal, finally achieves the optimal dust removing and desulfurizing effect, and realizes cyclic utilization of the water resource.
Description
Technical field
The utility model belongs to coal-burning boiler dust-removal and desulfurizing field, specifically, relates to a kind of coal-burning boiler dust-removing desulfurating apparatus.
Background technology
Removal method for boiler dust can be divided into dry method and the large class of wet method two from large direction, and dry method has cyclone dust removal, bag-type dusting, electric precipitation, expansion chamber etc.; Wet method has water film dedusting, venturi lector, spray column etc.
The sulfur removal technology adopting at coal-burning boiler is at present varied, by sulfur removal technology aborning residing position difference can be divided into: desulfurization (desulfuration in furnace) and the rear flue gas desulfurization of burning in desulfurization before burning, burning, sulfur method has dry method, semidry method, wet method.In these sulfur removal technologies, some technology are comparatively ripe, reached the level of commercial Application, have still in the experimental study stage.
Utility model content
For solving the problem in background technology, the utility model provide a kind of reasonable in design, realize desulfurization after first dedusting, reach the coal-burning boiler dust-removing desulfurating apparatus of best dust-removal and desulfurizing effect.
The technical solution of the utility model is:
A coal-burning boiler dust-removing desulfurating apparatus, comprises the flue being communicated with boiler, it is characterized in that: described flue is communicated with blower unit, and blower unit is communicated with respectively spray system and dust pelletizing system, and spray system is communicated with chimney, and dust pelletizing system is communicated with unloading valve; Described dust pelletizing system comprises the multicyclone being communicated with blower unit, and multicyclone is communicated with unloading valve.
Described spray system comprises spray column, sedimentation basin, reaction tank and the clear water reserviors that are communicated with successively, and clear water reserviors are finally communicated with spray column, form a complete circulation; Described spray column is communicated with blower unit and chimney; Between described spray column and clear water reserviors, be provided with power set, clear water reserviors are communicated with clear water pipe.
Power set between described clear water reserviors and spray column are circulating pump.
Described reaction tank is communicated with lime agitator tank and alkali lye agitator tank.
Owing to having adopted technique scheme, compared with prior art, the utility model flue gas discharged from coal-fired boiler is in flue top imports blower unit, enter again multicyclone, flue gas enters formation centrifugal force with certain speed along tangent line, through effects such as cyclone centrifugals, remove big dust particle and a part of granule dust, in the ash bucket of dust access arrangement bottom, a period of time is by getting rid of dry dust by unloading valve.Flue gas after preliminary purification is discharged and is entered spray column by the top of multicyclone, flue gas enters spray column, then in uphill process, pass through spray equipment, desulfurizing agent and the sulfur dioxide full regression haptoreaction in flue gas by spray to be to reach the sulfur dioxide object of absorption, and spray liquid falls and through bottom discharge, enters sedimentation basin, reaction tank, clear water reserviors and recycle after regenerating.After spray equipment, the humidity in flue gas is larger, can carry out demist processing at the top of spray column as required, and smoke moisture reduces, and then by top, is discharged by air-introduced machine and is guided into qualified discharge after chimney.
The utility model is reasonable in design, simple in structure, has realized desulfurization after the first dedusting of flue gas, finally reaches best dust-removal and desulfurizing effect, and has realized recycling of water resource.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of embodiment of the utility model.
The specific embodiment
Embodiment
As shown in Figure 1, a kind of coal-burning boiler dust-removing desulfurating apparatus, comprises the flue being communicated with boiler.Described flue is communicated with blower unit, and blower unit is communicated with respectively spray system and dust pelletizing system, and spray system is communicated with chimney, and dust pelletizing system is communicated with unloading valve; Described dust pelletizing system comprises the multicyclone being communicated with blower unit, and multicyclone is communicated with unloading valve.
In the present embodiment, described spray system comprises spray column, sedimentation basin, reaction tank and the clear water reserviors that are communicated with successively, and clear water reserviors are finally communicated with spray column, form a complete circulation; Described spray column is communicated with blower unit and chimney; Between described spray column and clear water reserviors, be provided with power set, clear water reserviors are communicated with clear water pipe.
Power set between described clear water reserviors and spray column are circulating pump.Described reaction tank is communicated with lime agitator tank and alkali lye agitator tank.
Flue gas discharged from coal-fired boiler is in flue top imports blower unit, enter again multicyclone, flue gas enters formation centrifugal force with certain speed along tangent line, through effects such as cyclone centrifugals, remove big dust particle and a part of granule dust, in the ash bucket of dust access arrangement bottom, a period of time is by getting rid of dry dust by unloading valve.Flue gas after preliminary purification is discharged and is entered spray column by the top of multicyclone, flue gas enters spray column, then in uphill process, pass through spray equipment, desulfurizing agent and the sulfur dioxide full regression haptoreaction in flue gas by spray to be to reach the sulfur dioxide object of absorption, and spray liquid falls and through bottom discharge, enters sedimentation basin, reaction tank, clear water reserviors and recycle after regenerating.After spray equipment, the humidity in flue gas is larger, can carry out demist processing at the top of spray column as required, and smoke moisture reduces, and then by top, is discharged by air-introduced machine and is guided into qualified discharge after chimney.
In the present embodiment, described multicyclone is to develop and form on the basis of cyclone dust collectors, multicyclone is molecular by the whirlwind of a plurality of minor diameters, the high feature of its existing minor diameter Whirlwind cyclone dedusting usefulness, again can be according to the requirement of processing air quantity, science permutation and combination, improves disposal ability.Have advantages of simple in structure, combination flexibly, stable performance, cost is low and middle effect dedusting; Whirlwind cyclone material can be steel, cast iron system or pottery system.
Described spray column equipment body material is granite, and it is corrosion-resistant, long service life.
Described spray column is selected calcium and sodium double alkali method desulfurizing technology, adopts easy sulfur dioxide absorption, reacts quick and sufficient sodium base alkali, under lower liquid-gas ratio, can obtain higher desulfuration efficiency, has the feature stopped up, less scaling, operating cost is low of being difficult for.
Described spray column is supplied water from clear water reserviors by the circulating pump of clear water reserviors, and water supply line is provided with valve and controls water spray, carries out corresponding water yield adjusting under boiler different load condition.
PH meter is installed at the pump entry place of described clear water reserviors, pH value with monitoring circulation fluid, by solenoid control Ca (OH) 2 and chemical feeding quantity, and according to the height of liquid level in medicinal cupping, add water at the water inlet portion installation magnetic valve of stirring system, prevent that medicament is finished and makes equipment idle running.
Described sedimentation basin, reaction tank, clear water reserviors communicate, and lime slurry is as main consumption thing, and the saturated spent solution regeneration for after spray column sulfur dioxide absorption, is reduced in regenerative process, reenters sulfur dioxide absorption in spray column.
The utility model is not limited to above-mentioned preferred embodiment, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or akin technical scheme, all belong to protection domain of the present utility model.
Claims (4)
1. a coal-burning boiler dust-removing desulfurating apparatus, comprises the flue being communicated with boiler, it is characterized in that: described flue is communicated with blower unit, and blower unit is communicated with respectively spray system and dust pelletizing system, and spray system is communicated with chimney, and dust pelletizing system is communicated with unloading valve; Described dust pelletizing system comprises the multicyclone being communicated with blower unit, and multicyclone is communicated with unloading valve.
2. coal-burning boiler dust-removing desulfurating apparatus according to claim 1, is characterized in that: described spray system comprises spray column, sedimentation basin, reaction tank and the clear water reserviors that are communicated with successively, and clear water reserviors are finally communicated with spray column, form a complete circulation; Described spray column is communicated with blower unit and chimney; Between described spray column and clear water reserviors, be provided with power set, clear water reserviors are communicated with clear water pipe.
3. coal-burning boiler dust-removing desulfurating apparatus according to claim 2, is characterized in that: the power set between described clear water reserviors and spray column are circulating pump.
4. coal-burning boiler dust-removing desulfurating apparatus according to claim 2, is characterized in that: described reaction tank is communicated with lime agitator tank and alkali lye agitator tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685281.XU CN203533589U (en) | 2013-11-01 | 2013-11-01 | Dust removing and desulfurizing device for coal-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685281.XU CN203533589U (en) | 2013-11-01 | 2013-11-01 | Dust removing and desulfurizing device for coal-fired boiler |
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| Publication Number | Publication Date |
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| CN203533589U true CN203533589U (en) | 2014-04-09 |
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| CN201320685281.XU Expired - Fee Related CN203533589U (en) | 2013-11-01 | 2013-11-01 | Dust removing and desulfurizing device for coal-fired boiler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994457A (en) * | 2014-05-13 | 2014-08-20 | 桂林洁宇环保科技有限责任公司 | Flue gas cleaning device with flue gas quencher |
| CN103990374A (en) * | 2014-05-12 | 2014-08-20 | 孙立刚 | Novel desulfurization, denitrification, decarburization and dust removal purification combined device for coal-fired flue gas |
| CN104315528A (en) * | 2014-11-04 | 2015-01-28 | 连云港艾可新型建材有限公司 | Desulfurizer body device for boiler dedusting |
| CN105498406A (en) * | 2015-12-17 | 2016-04-20 | 南京得清环境工程有限公司 | Central air purification dust removal system |
| CN106582179A (en) * | 2016-12-31 | 2017-04-26 | 天津市宝坻区发达造纸有限公司 | Boiler flue gas treatment process |
-
2013
- 2013-11-01 CN CN201320685281.XU patent/CN203533589U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990374A (en) * | 2014-05-12 | 2014-08-20 | 孙立刚 | Novel desulfurization, denitrification, decarburization and dust removal purification combined device for coal-fired flue gas |
| CN103994457A (en) * | 2014-05-13 | 2014-08-20 | 桂林洁宇环保科技有限责任公司 | Flue gas cleaning device with flue gas quencher |
| CN104315528A (en) * | 2014-11-04 | 2015-01-28 | 连云港艾可新型建材有限公司 | Desulfurizer body device for boiler dedusting |
| CN105498406A (en) * | 2015-12-17 | 2016-04-20 | 南京得清环境工程有限公司 | Central air purification dust removal system |
| CN106582179A (en) * | 2016-12-31 | 2017-04-26 | 天津市宝坻区发达造纸有限公司 | Boiler flue gas treatment process |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20171101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |