CN102974211A - Circulating fluidized bed boiler in-furnace desulfurization device - Google Patents
Circulating fluidized bed boiler in-furnace desulfurization device Download PDFInfo
- Publication number
- CN102974211A CN102974211A CN2012104382487A CN201210438248A CN102974211A CN 102974211 A CN102974211 A CN 102974211A CN 2012104382487 A CN2012104382487 A CN 2012104382487A CN 201210438248 A CN201210438248 A CN 201210438248A CN 102974211 A CN102974211 A CN 102974211A
- Authority
- CN
- China
- Prior art keywords
- pump
- desulfurizing agent
- fluidized bed
- circulating fluidized
- bed boiler
- 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
Landscapes
- Treating Waste Gases (AREA)
Abstract
The present invention provides a circulating fluidized bed boiler in-furnace desulfurization device, including a manual shutdown door arranged at the downward direction of a desulfurizer bin. The underneath of the manual shutdown door is successively connected with a first expansion joint, a feeding valve of a receiving pump, the receiving pump, a second expansion joint, a feeding valve of a charging pump, the charging pump, a charging valve, and an injection pump, wherein the upper feeding port of the injection pump is connected to the charging valve; the air inlet of the injection pump is connected with an air inlet pipe; a discharging port of the injection pump is connected with a distribution device through a conveying pipe, a discharging port of the distribution device is successively connected with a furnace inlet expansion joint, a furnace inlet pneumatic shutdown door and a furnace inlet manual shutdown door; the upper part of the receiving pump is provided with an upper level meter, and the lower part of the feeding pump is provided with a lower level meter. The in-furnace desulfurization device can smoothly transport the desulfurizer in the desulfurizer bin to the boiler furnace, the desulfurizer is smoothly transported, SO2 absorption reaction is conducted, circulating fluidized bed boiler flue gas desulfurization efficiency is high, and the flue gas reaches the standard and is discharged.
Description
Technical field
The present invention relates to a kind of Pneumatic conveying device for powdery material, be more particularly to a kind of desulphurization in circulating fluidized bed boiler device.
Background technology
The advantages such as CFBB has the efficient height, fuel tolerance is wide, Load Regulation is flexible, good environmental protection, development in recent years is very fast, and technology reaches its maturity.Along with China is more and more higher to environmental requirement, the appearance of environmental protection electrovalence policy, the more domestic power plant that has CFBB is firmly grasping transformation or is newly adding desulfurizer.
In recent years, some adopted the power plant of CFBB or were requested resolutely to carry out the boiler tail flue gas desulfurization by environmental administration, and desulphurization in circulating fluidized bed boiler is that the desulfurizing agent in the desulfurizing agent storehouse is transported in the boiler furnace, carries out SO
2Absorption reaction, thereby desulphurization in circulating fluidized bed boiler, the efficient of desulphurization in circulating fluidized bed boiler is low at present, the inefficient reason of desulfurization is: present existing desulphurization in circulating fluidized bed boiler device can not successfully be transported to the desulfurizing agent in the desulfurizing agent storehouse in the boiler furnace, and desulfurizing agent is carried not smooth.
Summary of the invention
The objective of the invention is to overcome above deficiency, a kind of desulphurization in circulating fluidized bed boiler device is provided, it can successfully be transported to the desulfurizing agent in the desulfurizing agent storehouse in the boiler furnace.
A kind of desulphurization in circulating fluidized bed boiler device, comprise be arranged under the desulfurizing agent storehouse to manual shutoff door, described manual shutoff door below is connected to inlet valve, the rewinding pump of first telescopic joint, rewinding pump, second telescopic joint, the inlet valve of feed pump, feed pump, feed valve, jet pump successively, and the upper feeding mouth of jet pump links to each other with feed valve; The air inlet of jet pump is connected to air inlet pipe; The discharging opening of jet pump connects distributor by the material conveying pipeline, and the distributor discharging opening is connected to burner hearth entrance expansion joint, the pneumatic shutoff door of burner hearth entrance, the manual shutoff door of burner hearth entrance successively; The top of described rewinding pump is provided with level-sensing device, and the bottom of described feed pump is provided with lower level-sensing device.
Above-mentioned desulphurization in circulating fluidized bed boiler device, wherein, described material conveying pipeline is provided with and blows block apparatus.
Above-mentioned desulphurization in circulating fluidized bed boiler device wherein, is provided with Pneumatic balanced valve between described rewinding pump and the desulfurizing agent storehouse, and the rewinding pump is communicated with the desulfurizing agent storehouse by Pneumatic balanced valve.
Above-mentioned desulphurization in circulating fluidized bed boiler device, wherein, the top in described desulfurizing agent storehouse is provided with the pressure vacuum relief valve, and the desulfurizing agent storehouse is communicated with the pressure vacuum relief valve.
Above-mentioned desulphurization in circulating fluidized bed boiler device, wherein, the top in described desulfurizing agent storehouse is provided with blowing device, and the desulfurizing agent storehouse is communicated with blowing device.
Above-mentioned desulphurization in circulating fluidized bed boiler device, wherein, the bottom in described desulfurizing agent storehouse is provided with gasification installation.
The invention has the beneficial effects as follows:
The present invention can successfully be transported to the desulfurizing agent in the desulfurizing agent storehouse in the boiler furnace, and desulfurizing agent is carried unimpeded; And carry out SO
2Absorption reaction; Can obtain higher desulfuration efficiency with rational calcium sulfur ratio, make the CFBB smoke desulfurization efficiency high, flue gas can qualified discharge, improves the utilization of ash and slag rate of power plant.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
A kind of desulphurization in circulating fluidized bed boiler device, comprise be arranged on desulfurizing agent storehouse 1 time to manual shutoff door 2, described manual shutoff door 2 belows are connected to inlet valve 4, the rewinding pump 5 of first telescopic joint 3, rewinding pump, second telescopic joint 6, the inlet valve 7 of feed pump, feed pump 8, feed valve 9, jet pump 10 successively, and the upper feeding mouth of jet pump 10 links to each other with feed valve 9; The air inlet of jet pump 10 is connected to air inlet pipe 11; The discharging opening of jet pump 10 connects distributor 13 by material conveying pipeline 12, and distributor 13 discharging openings are connected to burner hearth entrance expansion joint 14, the pneumatic shutoff door 15 of burner hearth entrance, the manual shutoff door 16 of burner hearth entrance successively; The top of described rewinding pump 5 is provided with level-sensing device, and the bottom of described feed pump 8 is provided with lower level-sensing device.Be provided with at described material conveying pipeline 12 and blow block apparatus 17.Be provided with Pneumatic balanced valve between rewinding pump 5 and desulfurizing agent storehouse 1, rewinding pump 5 is communicated with desulfurizing agent storehouse 1 by Pneumatic balanced valve.Be provided with pressure vacuum relief valve 20 at the top in desulfurizing agent storehouse 1, desulfurizing agent storehouse 1 is communicated with pressure vacuum relief valve 20.Be provided with blowing device 18 at the top in desulfurizing agent storehouse 1, desulfurizing agent storehouse 1 is communicated with blowing device 18.Be provided with gasification installation 19 in the bottom in desulfurizing agent storehouse 1.
Desulfurizing agent is the calcium-based materials such as lime stone, and resource distribution is extensive, and reserves are abundant and cheap, and desulfurization product is neutral solid slag, and is dirty without secondary.
Operational process of the present invention is:
A, desulfurizing agent are delivered in the power plant by closed tank truck, by the pneumatic transport equipment that is arranged on the closed tank truck desulfurizing agent are delivered to limestone powder bin.
At first detect all valves before the operation of b, system and whether be in closed condition, carry and instrument with bleed pressure whether in the scope that requires.When all conditions satisfies, open manual shutoff door 2, open the inlet valve 4 of rewinding pump, the desulfurizing agent that the desulfurizing agent storehouse is 1 li begins to enter 5 li of rewinding pumps through the inlet valve 4 of manual shutoff door 2, first telescopic joint 3, rewinding pump.When desulfurizing agent arrives upper level-sensing device place, close the inlet valve 4 of rewinding pump, give the sealing ring gas-flow closure of the inlet valve 4 of rewinding pump.At this moment open and carry source of the gas, open again feed valve 9, the pneumatic shutoff door 15 of burner hearth entrance, the manual shutoff door 16 of burner hearth entrance, then open the inlet valve 7 of feed pump, desulfurizing agent is through second telescopic joint 6, the inlet valve 7 of feed pump enters feed pump 8, close again the inlet valve 7 of feed pump, desulfurizing agent enters jet pump 10 by feed valve 9, gas enters 10 li in jet pump through air inlet pipe 11, mix with gas at jet pump 10 interior desulfurizing agents, mixture enters material conveying pipeline 12, strength makes mixture be transported to distributor 13 through material conveying pipeline 12, and distributor 13 distributes mixture and makes mixture through burner hearth entrance expansion joint 14, the pneumatic shutoff door 15 of burner hearth entrance, the manual shutoff door 16 of burner hearth entrance enters boiler furnace; Desulfurizing agent is carried unimpeded; And in stove, carry out SO
2Absorption reaction; Can obtain higher desulfuration efficiency with rational calcium sulfur ratio, make the CFBB smoke desulfurization efficiency high, flue gas can qualified discharge, can improve in addition the utilization of ash and slag rate of power plant.
C, any instantaneous what carry, when as long as the desulfurizing agent in the feed pump 8 arrives lower level-sensing device place, need open the inlet valve 7 of feed pump, allow the desulfurizing agent in the rewinding pump 5 fall into 8 li of feed pumps, after closing Deng the inlet valve 7 of feed pump, open the inlet valve 4 of rewinding pump, allow desulfurizing agent fall into rewinding pump 5 from desulfurizing agent storehouse 1, when desulfurizing agent arrives upper level-sensing device place, close the inlet valve 4 of rewinding pump, give the sealing ring gas-flow closure of the inlet valve 4 of rewinding pump.
D, when the setting value of pressure overpressure transmitter of the present invention, blow block apparatus 17 and open, blow stifledly, when pressure of the present invention returns to normal value, close and blow block apparatus 17.
Because: be provided with Pneumatic balanced valve between rewinding pump 5 and desulfurizing agent storehouse 1, rewinding pump 5 is communicated with desulfurizing agent storehouse 1 by Pneumatic balanced valve; Thereby can balance pressure reduction.
Because: be provided with pressure vacuum relief valve 20 at the top in desulfurizing agent storehouse 1, desulfurizing agent storehouse 1 is communicated with pressure vacuum relief valve 20; Thereby: when the air pressure in 1 li in desulfurizing agent storehouse was too large, pressure vacuum relief valve 20 was opened and is discharged gas, reduces the air pressure in 1 li in desulfurizing agent storehouse.
Because: be provided with blowing device 18 at the top in desulfurizing agent storehouse 1, desulfurizing agent storehouse 1 is communicated with blowing device 18; Thereby: 1 li in desulfurizing agent storehouse can produce the desulfurizing agent dust, and dust upwards enters 18 li of blowing devices, and blowing device 18 can be collected dust and the collected dusts of jetting, and makes collected dust get back to 1 li in desulfurizing agent storehouse.
Because: be provided with gasification installation 19 in the bottom in desulfurizing agent storehouse 1; Thereby: gasification installation 19 is blown in the bottom in desulfurizing agent storehouse 1, just can strengthen the flowability of the desulfurizing agent in 1 bottom, desulfurizing agent storehouse, be conducive to desulfurizing agent from the desulfurizing agent storehouse 1 li fall downwards, be conducive to carry desulfurizing agent downwards.
In sum, the present invention can successfully be transported to the desulfurizing agent in the desulfurizing agent storehouse in the boiler furnace, and desulfurizing agent is carried unimpeded; And carry out SO
2Absorption reaction; Can obtain higher desulfuration efficiency with rational calcium sulfur ratio, make the CFBB smoke desulfurization efficiency high, flue gas can qualified discharge, improves the utilization of ash and slag rate of power plant.
Claims (6)
1. desulphurization in circulating fluidized bed boiler device, it is characterized in that, comprise be arranged under the desulfurizing agent storehouse to manual shutoff door, described manual shutoff door below is connected to inlet valve, the rewinding pump of first telescopic joint, rewinding pump, second telescopic joint, the inlet valve of feed pump, feed pump, feed valve, jet pump successively, and the upper feeding mouth of jet pump links to each other with feed valve; The air inlet of jet pump is connected to air inlet pipe; The discharging opening of jet pump connects distributor by the material conveying pipeline, and the distributor discharging opening is connected to burner hearth entrance expansion joint, the pneumatic shutoff door of burner hearth entrance, the manual shutoff door of burner hearth entrance successively; The top of described rewinding pump is provided with level-sensing device, and the bottom of described feed pump is provided with lower level-sensing device.
2. desulphurization in circulating fluidized bed boiler device as claimed in claim 1 is characterized in that, described material conveying pipeline is provided with and blows block apparatus.
3. desulphurization in circulating fluidized bed boiler device as claimed in claim 1 is characterized in that, is provided with Pneumatic balanced valve between described rewinding pump and the desulfurizing agent storehouse, and the rewinding pump is communicated with the desulfurizing agent storehouse by Pneumatic balanced valve.
4. desulphurization in circulating fluidized bed boiler device as claimed in claim 1 is characterized in that, the top in described desulfurizing agent storehouse is provided with the pressure vacuum relief valve, and the desulfurizing agent storehouse is communicated with the pressure vacuum relief valve.
5. desulphurization in circulating fluidized bed boiler device as claimed in claim 1 is characterized in that, the top in described desulfurizing agent storehouse is provided with blowing device, and the desulfurizing agent storehouse is communicated with blowing device.
6. such as claim 1,2,3,4,5 or 6 described desulphurization in circulating fluidized bed boiler devices, it is characterized in that the bottom in described desulfurizing agent storehouse is provided with gasification installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104382487A CN102974211A (en) | 2012-11-06 | 2012-11-06 | Circulating fluidized bed boiler in-furnace desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104382487A CN102974211A (en) | 2012-11-06 | 2012-11-06 | Circulating fluidized bed boiler in-furnace desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102974211A true CN102974211A (en) | 2013-03-20 |
Family
ID=47848729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104382487A Pending CN102974211A (en) | 2012-11-06 | 2012-11-06 | Circulating fluidized bed boiler in-furnace desulfurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102974211A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215080A (en) * | 2013-05-10 | 2013-07-24 | 东南大学 | Ash discharge device for high-temperature high-pressure ash particle and ash discharge method thereof |
| CN103272475A (en) * | 2013-05-31 | 2013-09-04 | 神华集团有限责任公司 | Desulfurization system of circulating fluidized bed boiler |
| CN103566751A (en) * | 2013-11-01 | 2014-02-12 | 安徽金禾实业股份有限公司 | Fluidized bed boiler desulfurization method and device |
| CN104383785A (en) * | 2014-11-18 | 2015-03-04 | 西安热工研究院有限公司 | Uniform powder adsorbent injection system |
| CN105617861A (en) * | 2016-04-01 | 2016-06-01 | 中国大唐集团科学技术研究院有限公司 | Device for removing SO3 through flue injection of dry powder adsorbent |
| CN105817136A (en) * | 2016-06-03 | 2016-08-03 | 镇江京华电力环保工程公司 | Desulphurization system in circulating fluidized bed boiler |
| CN106237830A (en) * | 2016-08-30 | 2016-12-21 | 中国神华能源股份有限公司 | The material feeding control method of a kind of lime stone handling system and system |
| CN106735178A (en) * | 2017-02-17 | 2017-05-31 | 广州蓝磁新材料科技有限公司 | A kind of metal dust continuous vacuum vertical annealing furnace |
| CN107854966A (en) * | 2017-11-20 | 2018-03-30 | 深圳东方锅炉控制有限公司 | A kind of method and system for improving high basic metal coal and staiing coking |
| CN109852428A (en) * | 2019-04-02 | 2019-06-07 | 大连森雅能源环保设备有限公司 | Biomass feeding apparatus |
| CN114606026A (en) * | 2022-04-26 | 2022-06-10 | 北京北科环境工程有限公司 | Method for simultaneously desulfurizing and dechlorinating blast furnace gas |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780364A (en) * | 2009-01-20 | 2010-07-21 | 贵州电力调度通信局 | On-line calculation method for desulfurization efficiency of circulating fluidized bed boiler |
| CN201545512U (en) * | 2009-06-10 | 2010-08-11 | 陈毅 | Limestone continuous conveying system |
| CN202893181U (en) * | 2012-11-06 | 2013-04-24 | 镇江市电站辅机厂有限公司 | Desulphurization device in circulating fluidized bed boiler |
-
2012
- 2012-11-06 CN CN2012104382487A patent/CN102974211A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780364A (en) * | 2009-01-20 | 2010-07-21 | 贵州电力调度通信局 | On-line calculation method for desulfurization efficiency of circulating fluidized bed boiler |
| CN201545512U (en) * | 2009-06-10 | 2010-08-11 | 陈毅 | Limestone continuous conveying system |
| CN202893181U (en) * | 2012-11-06 | 2013-04-24 | 镇江市电站辅机厂有限公司 | Desulphurization device in circulating fluidized bed boiler |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215080A (en) * | 2013-05-10 | 2013-07-24 | 东南大学 | Ash discharge device for high-temperature high-pressure ash particle and ash discharge method thereof |
| CN103215080B (en) * | 2013-05-10 | 2014-11-05 | 东南大学 | Ash discharge device for high-temperature high-pressure ash particle and ash discharge method thereof |
| CN103272475A (en) * | 2013-05-31 | 2013-09-04 | 神华集团有限责任公司 | Desulfurization system of circulating fluidized bed boiler |
| CN103272475B (en) * | 2013-05-31 | 2016-02-03 | 神华集团有限责任公司 | The desulphurization system of CFBB |
| CN103566751A (en) * | 2013-11-01 | 2014-02-12 | 安徽金禾实业股份有限公司 | Fluidized bed boiler desulfurization method and device |
| CN103566751B (en) * | 2013-11-01 | 2016-04-13 | 安徽金禾实业股份有限公司 | A kind of fluidized-bed combustion boiler sulfur method and device thereof |
| CN104383785A (en) * | 2014-11-18 | 2015-03-04 | 西安热工研究院有限公司 | Uniform powder adsorbent injection system |
| CN105617861B (en) * | 2016-04-01 | 2019-04-23 | 中国大唐集团科学技术研究院有限公司 | A kind of dry powder adsorbent flue injection removing SO3Equipment |
| CN105617861A (en) * | 2016-04-01 | 2016-06-01 | 中国大唐集团科学技术研究院有限公司 | Device for removing SO3 through flue injection of dry powder adsorbent |
| CN105817136A (en) * | 2016-06-03 | 2016-08-03 | 镇江京华电力环保工程公司 | Desulphurization system in circulating fluidized bed boiler |
| CN106237830A (en) * | 2016-08-30 | 2016-12-21 | 中国神华能源股份有限公司 | The material feeding control method of a kind of lime stone handling system and system |
| CN106735178A (en) * | 2017-02-17 | 2017-05-31 | 广州蓝磁新材料科技有限公司 | A kind of metal dust continuous vacuum vertical annealing furnace |
| CN107854966A (en) * | 2017-11-20 | 2018-03-30 | 深圳东方锅炉控制有限公司 | A kind of method and system for improving high basic metal coal and staiing coking |
| CN109852428A (en) * | 2019-04-02 | 2019-06-07 | 大连森雅能源环保设备有限公司 | Biomass feeding apparatus |
| CN114606026A (en) * | 2022-04-26 | 2022-06-10 | 北京北科环境工程有限公司 | Method for simultaneously desulfurizing and dechlorinating blast furnace gas |
| CN114606026B (en) * | 2022-04-26 | 2023-01-17 | 北京北科环境工程有限公司 | Method for simultaneously desulfurizing and dechlorinating blast furnace gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102974211A (en) | Circulating fluidized bed boiler in-furnace desulfurization device | |
| CN104190243B (en) | The coal-burning boiler method of carbide slag desulfurization and equipment thereof | |
| CN105817136A (en) | Desulphurization system in circulating fluidized bed boiler | |
| CN202575416U (en) | Pneumatic transmission and blast furnace injection device for coke oven fly ash | |
| CN103816795A (en) | Semi-dry process desulfurization dust-removing technique and device | |
| CN202893181U (en) | Desulphurization device in circulating fluidized bed boiler | |
| CN202704563U (en) | Incineration fly ash conveying device | |
| CN204093300U (en) | Coal-burning boiler carbide slag desulphurization plant | |
| CN109852428A (en) | Biomass feeding apparatus | |
| CN201203107Y (en) | Bed material adding system of circulating fluid bed boiler | |
| CN204563931U (en) | Dry-method desulfurization device | |
| CN201625501U (en) | Desulfurizing device for circulating fluidized bed boiler | |
| CN102633122A (en) | Pneumatic conveying and blast furnace injecting device for coke oven dust-removing ash and using method thereof | |
| CN103272475B (en) | The desulphurization system of CFBB | |
| CN102210971B (en) | Circulating fluidized bed boiler desulfurizer | |
| CN209816040U (en) | Biomass feeding device | |
| CN202175434U (en) | Up-draw gasification delivery pump for bulk powder | |
| CN201990259U (en) | Environment-friendly boiling lateral guiding type conveyor | |
| CN104474894A (en) | Cyclone cylinder flue gas dry-method catalytic desulfurization device and process | |
| CN201555237U (en) | Baiting system capable of metering granular materials dynamically | |
| CN210159453U (en) | Novel semi-dry desulfurization lime feeding metering system | |
| CN202988276U (en) | Desulfurized ash conveying equipment | |
| CN201625500U (en) | Calcium spraying flue gas desulfurization device in limestone furnace | |
| CN102976101A (en) | Desulfurized ash delivery device | |
| CN206222343U (en) | A kind of online lime stone is to powder system |
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: 20130320 |