CN205461810U - Dry powder adsorbent flue injection desorption SO3's equipment - Google Patents
Dry powder adsorbent flue injection desorption SO3's equipment Download PDFInfo
- Publication number
- CN205461810U CN205461810U CN201620270693.0U CN201620270693U CN205461810U CN 205461810 U CN205461810 U CN 205461810U CN 201620270693 U CN201620270693 U CN 201620270693U CN 205461810 U CN205461810 U CN 205461810U
- Authority
- CN
- China
- Prior art keywords
- storage tank
- tank
- pneumatic
- dry powder
- feeding machine
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a coal -fired smoke pollutants control technical field, concretely relates to dry powder adsorbent flue injection desorption SO3's equipment. It is including the storage tank that is used for storing dry powder basicity adsorbent, the top of storage tank is equipped with storage tank feed inlet and storage tank gas vent, it is continuous with the air inlet of storage tank filter that the storage tank gas vent passes through the storage tank gas -supply pipe, the middle part of storage tank gas -supply pipe links to each other through a pipeline and a pressure air source who is equipped with first pneumatic pipe valve, the upper portion of storage tank is installed and is used for making the pressure -fired device that keeps the pressure -fired in the storage tank, the lower part of storage tank is cone angle awl bucket shape down, the bottom of storage tank is equipped with storage tank outlet, storage tank outlet department is equipped with the pneumatic feeding machine, the below of pneumatic feeding machine is equipped with weighing tank, the feed inlet that the discharge gate of pneumatic feeding machine passes through pneumatic feeding machine conveying pipeline and weighing tank top links to each other, pneumatic feeding machine conveying pipeline links to each other through pipeline and the 2nd pressure air source who is equipped with the pipe valve, weighing tank's top is equipped with the weighing tank gas vent.
Description
Technical field
This utility model relates to atmosphere pollution and controls technical field, is specifically related to a kind of dry powder adsorbent
Flue injection removing SO3Equipment.
Background technology
Coal-fired thermal power generation is the principal mode of the current electrical energy production of China.Data show, China's thermoelectricity
Generated energy is up to more than the 80% of gross generation, and wherein the electric installed capacity based on fire coal accounts for total capacity
75%, the energy nature of China is objective to be determined based on the supply of electric power general layout short-term of coal-fired thermal power generation
In will not change.The flue gas of coal-burning power plant's discharge contains a large amount of sulfide, NOx and heavy metal etc., wherein
SO250% has been exceeded with NOx ratio in flue gas.In addition produce once with secondary PM2.5
Being important industrial pollution source, the atmosphere pollution controlling coal-burning power plant's discharge becomes improvement haze weather
Main behave.SO in coal-fired flue-gas2There are about 1.5%-3% and be changed into SO3, as SO in flue gas3Concentration surpasses
When crossing 10ppm, be combined with steam and form small aerosol particle, improve flue gas acid dew point, make
Become cold end corrosion.Outside division ring border and corrosion failure, SO3It is to cause SCR denitration system catalyst and air
The main cause of preheater cold end heat exchange element " stifled ash ", causes air-introduced machine stall, and impact safety is raw
Produce.
At present, the Conventional pollution such as the electrostatic precipitator of coal fired power plant and WFGD controls equipment in flue gas
SO3Removal efficiency is relatively low.Main flue gas SO3Control technology includes mixing burning low-sulfur coal, developing low SO2/SO3
The SCR denitration of conversion ratio, in fire coal, add limestone and use wet electrical dust precipitator to carry out
Physics removes, the said equipment and the SO of method3Removal effect also is difficult to meet requirement.Patent No.
201120223113.X Chinese patent disclose a kind of sulfur trioxide bearing tail gas absorption device, including absorbing
Tower, sulfur trioxide reaction tower etc., this apparatus function is similar with WESP, it is impossible to solve SO3The sky caused
Air preheater blockage problem.Patent No. 201310044506.8X discloses one and utilizes trona to starch
The SO of liquid3Removing means, this device removes SO by injecting trona serosity in flue3.Serosity
Physicochemical characteristic different with dry powder physicochemical property, apparatus system difference is big, meanwhile, slurry injection device
Way of realization is more complicated, and reliability is poor.
Utility model content
The purpose of this utility model is to provide a kind of removing SO3Efficiency is high, removes SO3Thoroughly, performance is steady
Fixed reliable, to delay SO3The air preheater blocking caused, reduces SO3The upstream device corrosion caused,
Effectively reduce the SO in flue gas3Content, reduces the destruction to ecological environment, and can effectively save alkalescence suction
The dry powder adsorbent flue injection removing SO of attached dose3Equipment.
Dry powder adsorbent flue of the present utility model injection removing SO3Equipment, including for storing dry powder alkali
The storage tank of property adsorbent, the top of storage tank is provided with reservoir inlet and storage tank air vent, storage tank air vent
Being connected by the air inlet of storage tank appendix with storage tank filter, it is pneumatic that storage tank appendix is provided with first
Pipe valve, the first pneumatic pipe valve is connected by pneumatic line and the first pressure gas source, and the top of storage tank is installed
Have the micro positive pressure device keeping pressure-fired in making described storage tank, the bottom of storage tank be cone angle down
Cone bucket shape, the bottom of storage tank is provided with reservoir outlet, is provided with pneumatic feeding machine, gas at reservoir outlet
The bottom of dynamic batcher is provided with discharging opening, and the lower section of pneumatic feeding machine is provided with gravimetric tank, pneumatic feeding machine
Discharging opening be connected with the charging aperture at gravimetric tank top by pneumatic feeding machine conveying pipeline, pneumatic feeding machine
Conveying pipeline is provided with the second pneumatic pipe valve, and the second pneumatic pipe valve passes through pneumatic line and the second pressure gas source
Being connected, the top of gravimetric tank is provided with gravimetric tank air vent, and gravimetric tank air vent passes through gravimetric tank appendix
Being connected with the air inlet of gravimetric tank filter, gravimetric tank appendix is provided with pneumatic pipe valve of weighing, and weighs
Pneumatic pipe valve is connected by pneumatic line and the second pressure gas source, and the bottom of gravimetric tank is provided with gravimetric tank and goes out
Material mouth, the lower section of gravimetric tank is provided with rotary valve, and gravimetric tank discharging opening passes through gravimetric tank conveying pipeline and rotation
The charging aperture at valve top is connected, and gravimetric tank conveying pipeline is provided with the 3rd pneumatic pipe valve, the 3rd pneumatic pipe valve
Being connected by pneumatic line and the 3rd pressure gas source, the bottom of described rotary valve is provided with rotary valve discharging opening；
Described rotary valve discharging opening is connected with the charging aperture being positioned on air delivery tube tube wall, and air-flow carries
The air inlet of pipe is connected with the air outlet of blower fan, the discharging opening of air delivery tube and the charging aperture of allotter
Being connected, the discharging opening of allotter is connected with the multiple nozzles being positioned at flue by pipeline.
Preferably, the pressure-fired of 0.4kPa 0.8kPa is kept in described powder storage tank.
Preferably, described blower fan is roots blower.
Preferably, described dry powder alkaline adsorbent is calcium hydroxide or sodium carbonate or sodium bicarbonate.
Preferably, spray feed amount M (kg/h) of described dry powder alkaline adsorbent and flue gas SO2Concentration
C(mg/Nm3) and exhaust gas volumn V (Nm3/ h) relation be:
M=4kCV
Wherein k takes 1.5 × 10-5-4×10-5。
Technical solutions of the utility model, have the advantage that
Dry powder adsorbent flue of the present utility model injection removing SO3Equipment, can be according to SO in flue gas2Dense
Degree, makes straying quatity and the SO in flue gas of alkaline adsorbent material powder3Amount match.Thus ensure that SO3
Removal effect, saving alkaline adsorbent material powder.Dry powder adsorbent flue of the present utility model injection removing
SO3Equipment, described tank top, equipped with micro positive pressure device, is used for keeping 0.4kPa-0.8kPa in storage tank
Pressure-fired, it is achieved powder is moistureproof and blanking function smoothly.Described pneumatic feeding machine not only feed
Speed is fast, and stable and reliable working performance.It addition, described powder storage tank and gravimetric tank top are respectively provided with
Have filter, for filter discharge from described tank containing dusty gas, reduce and pollute environment and to behaviour
Make the dust injury of personnel.SO of the present utility model3Removing equipment, can change material by regulation rotary valve
Powder injection volume, makes alkaline adsorbent injection volume and SO in flue gas3Amount match.Thus ensure that removing
Efficiency, thereby saving alkaline adsorbent.Therefore, dry powder adsorbent flue of the present utility model injection
Removing SO3Equipment has removing SO3Efficiency is high, removes SO3Thoroughly, stable and reliable for performance, to delay
SO3The air preheater blocking caused, reduces SO3The upstream device corrosion caused, effectively reduces flue gas
In SO3Content, reduces the destruction to ecological environment, and can effectively save the feature of alkaline adsorbent.
Dry powder adsorbent flue of the present utility model note is further illustrated below in conjunction with drawings and Examples
Penetrate removing SO3Equipment.
Accompanying drawing explanation
Fig. 1 is dry powder adsorbent flue of the present utility model injection removing SO3The structural representation of equipment.
Detailed description of the invention
As it is shown in figure 1, dry powder adsorbent flue of the present utility model injection removing SO3Equipment, including using
In the storage tank 3 of storage dry powder alkaline adsorbent, the top of storage tank 3 is provided with reservoir inlet and storage tank aerofluxus
Mouthful, in use, by the reservoir inlet at the top of storage tank 3, dry powder alkaline adsorbent can be added
In storage tank 3, storage tank air vent is connected with the air inlet of storage tank filter 1 by storage tank appendix,
Storage tank filter 1 gets rid of the dust in storage tank 3 expellant gas for filtering, storage tank appendix
Middle part is provided with the first pneumatic pipe valve, and the first pneumatic pipe valve passes through pneumatic line and the first pressure gas source 2 phase
Even, the first pressure gas source 2 can control being turned on and off of the first pneumatic pipe valve, the top peace of storage tank 3
Equipped with the micro positive pressure device 12 keeping pressure-fired in making described storage tank 3, it is achieved moistureproof suitable with blanking
Smooth function.The bottom of storage tank 3 is cone angle cone bucket shape down, and the bottom of storage tank 3 is provided with storage tank and goes out
Material mouth, is provided with the pneumatic feeding machine 4 for feed at reservoir outlet, the bottom of pneumatic feeding machine 4 sets
Discharging opening, the lower section of pneumatic feeding machine 4 is had to be provided with the gravimetric tank 6 for weighing, pneumatic feeding machine 4
Discharging opening is connected with the charging aperture at gravimetric tank 6 top by pneumatic feeding machine conveying pipeline, in use,
Can realize storage tank 3 is inputted the control of the powder in weighing pot 6 by pneumatic feeding device 4.Pneumatic
Batcher conveying pipeline is provided with the second pneumatic pipe valve, and the second pneumatic pipe valve passes through pneumatic line and the second pressure
Source of the gas 13 is connected, and the second pressure gas source 13 can control being turned on and off of the second pneumatic pipe valve, weighs
The top of tank 6 is provided with gravimetric tank air vent, and gravimetric tank air vent passes through gravimetric tank appendix and gravimetric tank
The air inlet of filter 5 is connected, and gravimetric tank filter 5 gets rid of what gravimetric tank 6 was discharged for filtering
Dust in gas, the middle part of gravimetric tank appendix is provided with pneumatic pipe valve of weighing, and pneumatic pipe valve of weighing leads to
Crossing pneumatic line and the second pressure gas source 13 is connected, the second pressure gas source 13 can control to weigh pneumatic section
Being turned on and off of door, the bottom of gravimetric tank 6 is provided with gravimetric tank discharging opening, and the lower section of gravimetric tank 6 sets
Having for making material powder enter the rotary valve 7 of air delivery tube, gravimetric tank discharging opening passes through gravimetric tank conveying pipeline
Being connected with the charging aperture at rotary valve 7 top, gravimetric tank conveying pipeline is provided with the 3rd pneumatic pipe valve, the 3rd gas
Pipeline and the 3rd pressure gas source 14 of dynamic pipe valve are connected, and it is pneumatic that the 3rd pressure gas source 14 can control the 3rd
Being turned on and off of pipe valve, the bottom of rotary valve 7 is provided with rotary valve discharging opening；
Described rotary valve discharging opening is connected with the charging aperture being positioned on air delivery tube tube wall, and air-flow carries
The air inlet of pipe is connected with the air outlet of blower fan 9, and the discharging opening of air delivery tube enters with allotter 10
Material mouth is connected, and the material powder that air delivery tube carries can be branched in multiple pipeline by allotter 10, distribution
The discharging opening of device 10 is connected with the multiple nozzles 11 being positioned at flue by pipeline.
Further, the pressure-fired of 0.4kPa 0.8kPa is kept in described powder storage tank 3.
Further, described blower fan 9 is roots blower.
Further, described dry powder alkaline adsorbent is calcium hydroxide or sodium carbonate or sodium bicarbonate.
Further, spray feed amount M (kg/h) of described dry powder alkaline adsorbent and flue gas SO2Concentration
C(mg/Nm3) and exhaust gas volumn V (Nm3/ h) relation be:
M=4kCV
Wherein k takes 1.5 × 10-5-4×10-5。
Embodiment 1
Below as a example by certain 600MW coal unit, in conjunction with accompanying drawing, the utility model is described in further detail.
The present embodiment provides a kind of dry powder adsorbent flue injection removing SO3Equipment, as it is shown in figure 1, bag
Include:
Storage tank 3, is used for storing dry powder alkaline adsorbent；
Gravimetric tank 6, connects with described storage tank 3；
Connected, by pneumatic feeding device 4 by pneumatic feeding device 4 between storage tank 3 with weighing pot 6
Realize the control of the powder that powder storage tank 3 is passed through in weighing pot 6.
Rotary valve 7, is arranged on below gravimetric tank 6, is used for making material powder enter air delivery tube；
Allotter 10, for material powder shunting air delivery tube carried；
Nozzle 11, in stretching into flue, the allocated device 10 is connected with described rotary valve 7 by feeding pipeline；
Roots blower 9, for feeding gas in air delivery tube, makes material powder by air delivery tube warp
Sprayed by nozzle 11 after allotter 10 shunting；
Micro positive pressure device, the pressure-fired within keeping storage tank；
Described powder storage tank 3 and gravimetric tank 6 top are respectively arranged with storage tank filter 1 and gravimetric tank mistake
Filter 5, discharges the dust in gas in filtering tank.
Further, described powder storage tank 3 top is additionally provided with micro positive pressure device, is used for making described powder
The pressure-fired of 0.4kPa-0.8kPa is kept, it is achieved powder is moistureproof and blanking is smooth and easy in material storage tank 1.
This utility model flue between SCR denitration reactor outlet and air preheater injects dry powder
Adsorbent, selected adsorbent is calcium hydroxide, and design adsorbent injection volume is 1.3ton/h.Utilize hydrogen
The strong basicity of calcium oxide and SO3Reaction, through SO3Analyser detects, and native system can be by air preheater entrance
SO3Mean concentration is down to 3.85ppm.Therefore, dry powder adsorbent flue of the present utility model injection removing
SO3Equipment has removing SO3Efficiency is high, removes SO3Thoroughly, stable and reliable for performance, to delay SO3Make
The air preheater blocking become, reduces SO3The upstream device corrosion caused, effectively reduces the SO in flue gas3
Content, reduces the destruction to ecological environment, and can effectively save the feature of alkaline adsorbent.
Claims (5)
1. dry powder adsorbent flue injection removing SO3Equipment, it is characterised in that include for storing dry powder alkali
Property adsorbent storage tank (3), the top of storage tank (3) is provided with reservoir inlet and storage tank air vent, storage
Tank air vent is connected, on storage tank appendix with the air inlet of storage tank filter (1) by storage tank appendix
Being provided with the first pneumatic pipe valve, the first pneumatic pipe valve is connected by pneumatic line and the first pressure gas source (2),
The top of storage tank (3) is provided with in making described storage tank (3) micro positive pressure device keeping pressure-fired
(12), the bottom of storage tank (3) is cone angle cone bucket shape down, and the bottom of storage tank (3) is provided with storage tank
Discharging opening, is provided with pneumatic feeding machine (4) at reservoir outlet, the bottom of pneumatic feeding machine (4) is provided with
Discharging opening, the lower section of pneumatic feeding machine (4) is provided with gravimetric tank (6), going out of pneumatic feeding machine (4)
Material mouth is connected with the charging aperture at gravimetric tank (6) top by pneumatic feeding machine conveying pipeline, pneumatic feeding machine
Conveying pipeline is provided with the second pneumatic pipe valve, and the second pneumatic pipe valve passes through pneumatic line and the second pressure gas source
(13) being connected, the top of gravimetric tank (6) is provided with gravimetric tank air vent, and gravimetric tank air vent is by claiming
Weight tank appendix is connected with the air inlet of gravimetric tank filter (5), and gravimetric tank appendix is provided with weighs
Pneumatic pipe valve, pneumatic pipe valve of weighing is connected by pneumatic line and the second pressure gas source (13), weighs
The bottom of tank (6) is provided with gravimetric tank discharging opening, and the lower section of gravimetric tank (6) is provided with rotary valve (7),
Gravimetric tank discharging opening is connected with the charging aperture at rotary valve (7) top by gravimetric tank conveying pipeline, gravimetric tank
Conveying pipeline is provided with the 3rd pneumatic pipe valve, and the 3rd pneumatic pipe valve passes through pneumatic line and the 3rd pressure gas source
(14) being connected, the bottom of described rotary valve (7) is provided with rotary valve discharging opening；
Described rotary valve discharging opening is connected with the charging aperture being positioned on air delivery tube tube wall, and air-flow carries
The air inlet of pipe is connected with the air outlet of blower fan (9), the discharging opening of air delivery tube and allotter (10)
Charging aperture be connected, the discharging opening of allotter (10) pass through pipeline and the multiple nozzles being positioned at flue
(11) it is connected.
Dry powder adsorbent flue the most according to claim 1 injection removing SO3Equipment, its feature exists
The pressure-fired of 0.4kPa 0.8kPa is kept in described powder storage tank (3).
Dry powder adsorbent flue the most according to claim 2 injection removing SO3Equipment, its feature exists
It is roots blower in described blower fan (9).
Dry powder adsorbent flue the most according to claim 3 injection removing SO3Equipment, its feature exists
It is calcium hydroxide or sodium carbonate or sodium bicarbonate in described dry powder alkaline adsorbent.
5. inject removing SO according to the dry powder adsorbent flue in any of the one of Claims 1-43
Equipment, it is characterised in that spray feed amount M (kg/h) of described dry powder alkaline adsorbent and flue gas SO2Concentration
C(mg/Nm3) and exhaust gas volumn V (Nm3/ h) relation be:
M=4kCV
Wherein k takes 1.5 × 10-5-4×10-5。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620270693.0U CN205461810U (en) | 2016-04-01 | 2016-04-01 | Dry powder adsorbent flue injection desorption SO3's equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620270693.0U CN205461810U (en) | 2016-04-01 | 2016-04-01 | Dry powder adsorbent flue injection desorption SO3's equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205461810U true CN205461810U (en) | 2016-08-17 |
Family
ID=56646680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620270693.0U Expired - Fee Related CN205461810U (en) | 2016-04-01 | 2016-04-01 | Dry powder adsorbent flue injection desorption SO3's equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205461810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-04-01 CN CN201620270693.0U patent/CN205461810U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105617861B (en) | A kind of dry powder adsorbent flue injection removing SO3Equipment | |
| CN206404569U (en) | Flue gas of refuse burning minimum discharge cleaning system | |
| CN202185253U (en) | Exhaust gas purifying system for waste incineration | |
| CN104984656B (en) | Multistage internal circulation semi-dry method desulfurization, denitrification and demercuration integrated device | |
| CN102794090A (en) | Flue gas purifier utilizing combination of spray-drying method and hydrated lime powder injection | |
| CN205073877U (en) | Semidry method flue gas desulphurization device of single venturi structure | |
| CN204563902U (en) | Flue gas circulating fluidized bed associating demercuration dearsenification device | |
| CN108722114A (en) | Powdered activated coke adsorpting desulfurization device and the method that absorption desulfurization is carried out to flue gas using it | |
| CN201701871U (en) | Desulfuration, denitration, decarburization, dedusting and black smoke removing integrated equipment | |
| CN110975582A (en) | Flue gas desulfurization, denitrification and dust removal system of biomass circulating fluidized bed boiler | |
| CN208809774U (en) | A kind of ultra-clean purification system of flue gas | |
| CN104353350B (en) | The flue gas purifying technique realized based on absorbent pretreatment | |
| CN204582933U (en) | A kind of fire coal boiler fume two-grade desulfurizing SCR denitration device | |
| CN205461810U (en) | Dry powder adsorbent flue injection desorption SO3's equipment | |
| CN212396274U (en) | Waste incineration flue gas near-zero emission treatment system | |
| CN206621985U (en) | A kind of coal steam-electric plant smoke sulfur dioxide and waste water coprocessing system | |
| CN202561728U (en) | Small-and-medium scale industrial boiler system for cleaning fuel of burning powder body | |
| CN202823129U (en) | Flue gas cleaning device of spray drying method combined with hydrated lime powder spraying | |
| CN108373936A (en) | A kind of flue gas purification system and method for the gasification of fire coal coupled biological matter | |
| CN105889960A (en) | Flue gas desulfurization device for coal-fired boiler | |
| CN104759204A (en) | Boiler flue gas combined demercuration and dearsenification device and removing method thereof | |
| CN105879633A (en) | Smoke desulfurization and denitrification device of coal-fired boiler | |
| CN204865486U (en) | Fuel catalyst desulfurization dust collector | |
| CN208878242U (en) | Base removes sulfur trioxide Performance Evaluation experimental provision | |
| CN106152799A (en) | A kind of flue gas of sintering machine denitration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170401 |