CN102213414A - Desulfuration electrostatic dust collection device of circulating fluidized bed (CFB) - Google Patents
Desulfuration electrostatic dust collection device of circulating fluidized bed (CFB) Download PDFInfo
- Publication number
- CN102213414A CN102213414A CN 201010140282 CN201010140282A CN102213414A CN 102213414 A CN102213414 A CN 102213414A CN 201010140282 CN201010140282 CN 201010140282 CN 201010140282 A CN201010140282 A CN 201010140282A CN 102213414 A CN102213414 A CN 102213414A
- Authority
- CN
- China
- Prior art keywords
- cfb
- cyclone separator
- communicated
- electrostatic dust
- desulfuration
- 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.)
- Pending
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a desulfuration electrostatic dust collection device of a circulating fluidized bed (CFB). The device comprises a CFB boiler, a chimney, a cyclone separator and a limestone powder conveying device, wherein an air chamber is arranged on the lower part of the CFB boiler; an air inlet pipe connection hole is formed in the air chamber; and a smoke outlet pipe at the top of the CFB boiler is connected with the cyclone separator. The desulfuration electrostatic dust collection device of the CFB is characterized in that: a return inclined leg which is communicated with a boiler furnace is arranged below the cyclone separator; a powder spraying nozzle which is communicated with the limestone powder conveying device is arranged on the return inclined leg; an air outlet pipe which is communicated with an electrostatic dust collector is arranged above the cyclone separator; and the electrostatic dust collector is communicated with the chimney. The invention has the advantages that: the desulfuration electrostatic dust collection device of the CFB is stable and normal in operation; the discharge concentration of sulfur dioxide (SO2) in fume can stably reach the standard; and the technical problems of low desulfuration efficiency, energy waste and environmental pollution in the prior art are solved.
Description
Technical field the invention belongs to the boiler technology field, relates to a kind of circulating fluid bed boiler desulfurization electrostatic precipitator.
Background technology recirculating fluidized bed (CFB) boiler is the clean burning technology that development is rapid and be used widely.Remove SO by interpolation agstone and coal mixed combustion in the stove
2,, realize low NOx drainage by control fire box temperature and fractional combustion.The boiler desulfurization dedusting technology of prior art is agstone directly to be sprayed into burner hearth contact with burned flame and carry out desulfurization, flue gas is discharged into the high-altitude after chimney enters the cyclone separator dedusting, because agstone does not have and flue gas fully mixes, do not have the soot dust granule of completing combustion to collect as discarded object discarded through cyclone separator, be discharged into not only to waste energy in the air and also polluted environment and contain a large amount of CO that does not have completing combustion in the flue gas, therefore, prior art exist desulfuration efficiency low, waste energy, problem of environment pollution caused.
Summary of the invention the objective of the invention is to solve prior art exist desulfuration efficiency low, waste energy, the technical problem of contaminated environment, provide a kind of circulating fluid bed boiler desulfurization electrostatic precipitator, to overcome the deficiencies in the prior art.
To achieve these goals, circulating fluid bed boiler desulfurization electrostatic precipitator of the present invention is to improve realization on the basis of existing technology, comprises CFBB, chimney, cyclone separator and agstone conveying device; The bottom of described CFBB is provided with air compartment, air compartment is provided with the blast pipe connector, the pipe at CFBB top is connected with cyclone separator, be provided with the returning charge battered leg that is communicated with boiler furnace below its main points cyclone separator, the returning charge battered leg is provided with the mouth that dusts that is communicated with the agstone conveying device, be provided with the escape pipe that is communicated with electrostatic precipitator above the cyclone separator, electrostatic precipitator is communicated with described chimney.
CFB boiler desulfurization sulphur electrostatic precipitator of the present invention is stable normal, SO in the flue gas
2Concentration of emission can stably reaching standard.Solved prior art exist desulfuration efficiency low, waste energy, the technical problem of contaminated environment.
Appended drawings is a schematic diagram of the present invention.
The specific embodiment with reference to the accompanying drawings, it comprises CFBB 1, chimney 7, cyclone separator 4 and agstone conveying device the present invention; The bottom of CFBB 1 is provided with air compartment 2, air compartment 2 is provided with blast pipe connector 10, the pipe 3 at CFBB top is connected with cyclone separator 4, be provided with the returning charge battered leg 8 that is communicated with boiler furnace below the cyclone separator 4, returning charge battered leg 8 is provided with the mouth 9 that dusts that is communicated with the agstone conveying device, be provided with the escape pipe 5 that is communicated with electrostatic precipitator 6 above the cyclone separator 4, electrostatic precipitator 6 is communicated with described chimney 7.
Operation principle of the present invention: the pipe 3 of the flue gas of CFB boiler internal combustion through the top enters cyclone separator 4 to carry out flue dust and separates with flue gas, not having the flue dust of completing combustion and heavy CO fully to mix through returning charge battered leg 8 and agstone from mouthful 9 spirts that dust returns burner hearth and rekindles, burn completely flue gas again the escape pipe above cyclone separator 45 enter electrostatic precipitator 6 further dedustings, the gas of environmental protection up to standard is discharged through chimney 7.Agstone is transported to by the agstone conveying device and enters the burner hearth burning after the mouth 9 that dusts sprays into returning charge battered leg 8 and flue dust mixes
Agstone of the present invention removes SO
2Principle be: calcination reaction takes place and generates calcium oxide in agstone under 850 ℃ of conditions, pass through series of chemical again, calcium oxide, SO
2Generate calcium sulfate with oxygen chemical combination.Because CO
2Overflow, the porosity of solid particle calcium oxide increases severely, and is SO
2Create conditions to the granule interior diffusion, increased lime stone and removed SO
2Utilization rate.Chemical reaction is formula as follows:
CaCO
3→ CaO+CO
2(calcination reaction)
CaO+SO
2+ 1/2O
2→ CaSO
4(combination reaction)
Claims (1)
1. a circulating fluid bed boiler desulfurization electrostatic precipitator comprises CFBB, chimney, cyclone separator and agstone conveying device; The bottom of described CFBB is provided with air compartment, air compartment is provided with the blast pipe connector, the pipe at CFBB top is connected with cyclone separator, it is characterized in that cyclone separator below be provided with the returning charge battered leg that is communicated with boiler furnace, the returning charge battered leg is provided with the mouth that dusts that is communicated with the agstone conveying device, be provided with the escape pipe that is communicated with electrostatic precipitator above the cyclone separator, electrostatic precipitator is communicated with described chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140282 CN102213414A (en) | 2010-04-07 | 2010-04-07 | Desulfuration electrostatic dust collection device of circulating fluidized bed (CFB) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140282 CN102213414A (en) | 2010-04-07 | 2010-04-07 | Desulfuration electrostatic dust collection device of circulating fluidized bed (CFB) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102213414A true CN102213414A (en) | 2011-10-12 |
Family
ID=44744840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010140282 Pending CN102213414A (en) | 2010-04-07 | 2010-04-07 | Desulfuration electrostatic dust collection device of circulating fluidized bed (CFB) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102213414A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494335A (en) * | 2011-12-30 | 2012-06-13 | 东南大学 | Split self-excited serial electric-cyclone gas-solid separating device of circulating fluidized bed boiler |
| CN111457411A (en) * | 2020-04-23 | 2020-07-28 | 杭州富阳林长发科技有限公司 | Energy-saving stove used outdoors and capable of efficiently burning |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999031026A1 (en) * | 1997-12-15 | 1999-06-24 | Her Majesty In Right Of Canada As Represented By The Minister Of Natural Resources | Method for conditioning fluidised bed combustor ashes |
| JP2003262306A (en) * | 2002-03-08 | 2003-09-19 | Babcock Hitachi Kk | Fluidized bed combustion equipment |
| CN1247294C (en) * | 2003-11-02 | 2006-03-29 | 华北电力大学 | Method and equipment of desulfurization and denitrogenation for purifying flue gas |
| CN1248771C (en) * | 2001-06-22 | 2006-04-05 | 国家电站燃烧工程技术研究中心 | Reaction process for desulfurizing fume with integrated dual-circulation fluidized bed |
| CN1253673C (en) * | 2004-08-12 | 2006-04-26 | 广东亨达利水泥厂有限公司 | Burning device and process for oil shale fluidized bed |
| CN201015729Y (en) * | 2007-02-08 | 2008-02-06 | 国电科技环保集团山东龙源环保有限公司 | Multiple layer spray water circulating fluidized bed flue-gas desulfurizing device |
| CN100408917C (en) * | 2006-01-25 | 2008-08-06 | 浙江大学 | Circulating fluidized bed combustion device with biomass fuel and combustion method thereof |
| CN100434146C (en) * | 2006-04-11 | 2008-11-19 | 中国科学院过程工程研究所 | Dried type outside and inside dual circulation fluidized bed desulfurizing device and desulfurizing method thereof |
| CN101342458A (en) * | 2008-08-15 | 2009-01-14 | 杭州新世纪能源环保工程股份有限公司 | Semi-dry process smoke eliminator with independent temperature-reducing column |
| CN100464825C (en) * | 2006-12-27 | 2009-03-04 | 吉林安洁环保有限公司 | Semi-dry desulfurizing process in double feedback circular fluidized bed |
| CN101648099A (en) * | 2009-08-26 | 2010-02-17 | 福建龙净脱硫脱硝工程有限公司 | Purifying treatment device and purifying treatment method for flue gas multicomponent pollutant generated by incinerating refuse |
| CN101666494A (en) * | 2008-09-03 | 2010-03-10 | 孙斌 | Circulating fluidized bed boiler capable of extracting elemental sulfur |
| CN201628214U (en) * | 2010-04-07 | 2010-11-10 | 华盛***有限公司 | Desulphurization electrostatic precipitator for circulating fluidized bed boiler |
-
2010
- 2010-04-07 CN CN 201010140282 patent/CN102213414A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999031026A1 (en) * | 1997-12-15 | 1999-06-24 | Her Majesty In Right Of Canada As Represented By The Minister Of Natural Resources | Method for conditioning fluidised bed combustor ashes |
| CN1248771C (en) * | 2001-06-22 | 2006-04-05 | 国家电站燃烧工程技术研究中心 | Reaction process for desulfurizing fume with integrated dual-circulation fluidized bed |
| JP2003262306A (en) * | 2002-03-08 | 2003-09-19 | Babcock Hitachi Kk | Fluidized bed combustion equipment |
| CN1247294C (en) * | 2003-11-02 | 2006-03-29 | 华北电力大学 | Method and equipment of desulfurization and denitrogenation for purifying flue gas |
| CN1253673C (en) * | 2004-08-12 | 2006-04-26 | 广东亨达利水泥厂有限公司 | Burning device and process for oil shale fluidized bed |
| CN100408917C (en) * | 2006-01-25 | 2008-08-06 | 浙江大学 | Circulating fluidized bed combustion device with biomass fuel and combustion method thereof |
| CN100434146C (en) * | 2006-04-11 | 2008-11-19 | 中国科学院过程工程研究所 | Dried type outside and inside dual circulation fluidized bed desulfurizing device and desulfurizing method thereof |
| CN100464825C (en) * | 2006-12-27 | 2009-03-04 | 吉林安洁环保有限公司 | Semi-dry desulfurizing process in double feedback circular fluidized bed |
| CN201015729Y (en) * | 2007-02-08 | 2008-02-06 | 国电科技环保集团山东龙源环保有限公司 | Multiple layer spray water circulating fluidized bed flue-gas desulfurizing device |
| CN101342458A (en) * | 2008-08-15 | 2009-01-14 | 杭州新世纪能源环保工程股份有限公司 | Semi-dry process smoke eliminator with independent temperature-reducing column |
| CN101666494A (en) * | 2008-09-03 | 2010-03-10 | 孙斌 | Circulating fluidized bed boiler capable of extracting elemental sulfur |
| CN101648099A (en) * | 2009-08-26 | 2010-02-17 | 福建龙净脱硫脱硝工程有限公司 | Purifying treatment device and purifying treatment method for flue gas multicomponent pollutant generated by incinerating refuse |
| CN201628214U (en) * | 2010-04-07 | 2010-11-10 | 华盛***有限公司 | Desulphurization electrostatic precipitator for circulating fluidized bed boiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494335A (en) * | 2011-12-30 | 2012-06-13 | 东南大学 | Split self-excited serial electric-cyclone gas-solid separating device of circulating fluidized bed boiler |
| CN102494335B (en) * | 2011-12-30 | 2014-02-19 | 东南大学 | Split self-excited serial electric-cyclone gas-solid separating device of circulating fluidized bed boiler |
| CN111457411A (en) * | 2020-04-23 | 2020-07-28 | 杭州富阳林长发科技有限公司 | Energy-saving stove used outdoors and capable of efficiently burning |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100464122C (en) | Method of decreasing release of nitrogen oxide in the pulverized-coal fired boiler and its used boiler | |
| CN100503013C (en) | Method and system for combinedly removing SO2, NOx and Hg in coal smoke gas by using recombustion of biomass | |
| CN103234196B (en) | A kind of preposition coal gasification grate firing device and combustion method thereof | |
| CN105387453B (en) | The grate furnace and its burning process of a kind of flue gas recirculation and micronized coal reburning | |
| CN109364711A (en) | A kind of flue gas system for the ultra-clean processing of cement kiln tail gas | |
| CN105567375B (en) | Compound additive | |
| CN105567365B (en) | Modified coal and its manufacturing method | |
| WO2014067405A1 (en) | Method for reducing nitrogen oxide discharge of biomass circulating fluidized bed boiler | |
| CN209490672U (en) | A kind of flue gas system for the ultra-clean processing of cement kiln tail gas | |
| CN108105761A (en) | Circulating fluidized bed boiler minimum discharge cooperative control method and system integration device | |
| CN203273872U (en) | Front-arranged coal gasification grate firing device | |
| CN102350211B (en) | Three-stage desulfurization device for circulating fluidized bed boiler | |
| CN201628214U (en) | Desulphurization electrostatic precipitator for circulating fluidized bed boiler | |
| CN106402938B (en) | A kind of civil heating stove of clean combustion | |
| CN102777921B (en) | System and method for carrying out mercury removal and sulfur fixation on pulverized coal boiler by using white mud | |
| CN102600695B (en) | Energy-saving desulfuration and denitrification dust collector for large boiler | |
| CN102213414A (en) | Desulfuration electrostatic dust collection device of circulating fluidized bed (CFB) | |
| CN110486717A (en) | It is a kind of to mix the CFB boiler system for burning waste gas and waste liquid | |
| CN1312430C (en) | Biomass and powder coal mixed combustion and biomass recombusting and denitrating combustion apparatus | |
| CN105157222A (en) | Energy-saving and dust-removing coal-fired boiler | |
| CN105879635A (en) | Boiler flue gas desulfurization and denitrification device | |
| CN2804615Y (en) | Burner able to burn mixed live substance and coal powder and reburning denitration of the same | |
| CN205019945U (en) | Flue gas desulfurization reactor | |
| CN103398371A (en) | Double-low type boiler burning high base metal coal | |
| CN211435702U (en) | Multi-pollutant integrated removing system of circulating fluidized bed boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111012 |