CN105617861A - Device for removing SO3 through flue injection of dry powder adsorbent - Google Patents
Device for removing SO3 through flue injection of dry powder adsorbent Download PDFInfo
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- CN105617861A CN105617861A CN201610202418.XA CN201610202418A CN105617861A CN 105617861 A CN105617861 A CN 105617861A CN 201610202418 A CN201610202418 A CN 201610202418A CN 105617861 A CN105617861 A CN 105617861A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
- B01D53/8609—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/12—Methods and means for introducing reactants
- B01D2259/128—Solid reactants
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- Treating Waste Gases (AREA)
Abstract
The invention relates to the technical field of coal-fired flue gas pollutants and specifically relates to a device for removing SO3 through flue injection of a dry powder adsorbent. The device comprises a storage tank used for storing the dry powder alkaline adsorbent, wherein a feeding hole and an exhaust hole are formed in the top of the storage tank; the exhaust hole is connected with a gas inlet of a storage tank filter through a storage tank gas conveying pipe; the middle part of the storage tank gas conveying pipe is connected with a first pressure gas source through a pipeline with a first pneumatic stop valve; a micro positive pressure device used for keeping micro positive pressure in the storage tank is mounted on the upper part of the storage tank; the lower part of the storage tank is of conical hopper shape with downward taper angle; a storage tank discharging hole is arranged at the bottom of the storage tank; a pneumatic feeder is arranged at the storage tank discharging hole; a weighting tank is arranged under the pneumatic feeder; a discharging hole of the pneumatic feeder is connected with a feeding hole at the top of the weighting tank through a pneumatic feeder delivery pipe; the pneumatic feeder delivery pipe is connected with a second pressure gas source through a pipeline with a stop valve; a weighting tank exhaust hole is arranged at the top of the weighting tank.
Description
Technical field
The present invention relates to atmospheric polluting material control techniques field, it is specifically related to a kind of dry powder sorbent material flue injection de-except SO3Equipment.
Background technology
Coal-fired thermal power generation is the main form of the current electrical energy production of China. Data show, and China's thermoelectricity generated energy is up to more than the 80% of gross generation, and wherein electric installed capacity based on fire coal accounts for total volume 75%, and the energy nature of China is objective to be determined the supply of electric power general layout based on fire coal thermal power generation and can not change in a short time. 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 the ratio of NOx in flue gas. What in addition produce is once important industrial pollution source with two PM2.5, and the atmospheric polluting material of control coal-burning power plant discharge becomes the main behave administering haze weather. SO in coal-fired flue-gas21.5%-3% is about had to be changed into SO3, as SO in flue gas3When concentration is more than 10ppm, is combined with water vapour and forms small aerosol particle, it is to increase flue gas acid dew point, cause low temperature corrosion. Except environment and corrosion failure, SO3It is the major cause causing SCR denitration system catalyzer and air preheater cold junction heat exchange element " stifled ash ", causes induced draft fan stall, impact safety in production.
At present, the conventional pollutant catabolic gene equipment such as the electrostatic precipitator of coal power station and WFGD is to SO in flue gas3Removal efficiency is lower. Main flue gas SO3Control techniques comprise mix burn low sulphur coal, develop low SO2/SO3The SCR denitration of transformation efficiency, in fire coal, add Wingdale and adopt wet electrical dust precipitator to carry out that physics is de-removes, the SO of aforesaid device and method3Removal effect is also difficult to meet requirement. The Chinese patent that the patent No. is 201120223113.X discloses a kind of sulfur trioxide bearing tail gas absorption device, comprises absorption tower, sulphur trioxide reaction tower etc., and this apparatus function and WESP are similar, cannot solve SO3The air preheater blockage problem caused. The patent No. is that 201310044506.8X discloses a kind of SO utilizing urao slurries3De-except device, by injecting in flue, urao slurries take off except SO this device3. The physicochemical characteristic of slurries is different with dry powder physicochemical property, and apparatus system difference is big, and meanwhile, slurry injection device way of realization is more complicated, and reliability is poor.
Summary of the invention
It is an object of the invention to provide a kind of de-except SO3Efficiency height, de-except SO3Thoroughly, stable and reliable for performance, to delay SO3The air preheater blocking caused, reduces SO3The upstream device corrosion caused, effectively reduces the SO in flue gas3Content, reduces the destruction to ecotope, and the dry powder sorbent material flue injection that can effectively save alkaline adsorbent is de-except SO3Equipment.
The dry powder sorbent material flue injection of the present invention is de-except SO3Equipment, comprise the storage tank for storing dry powder alkaline adsorbent, the top of storage tank is provided with storage tank opening for feed and storage tank venting port, storage tank venting port is connected with the inlet mouth of storage tank strainer by storage tank pneumatic tube, storage tank pneumatic tube is provided with the first pneumatic pipe valve, first pneumatic pipe valve is connected with the first pressure gas source by pneumatic pipeline, the top of storage tank is provided with for making the micro positive pressure device keeping pressure-fired in described storage tank, the bottom of storage tank is cone angle cone bucket shape down, the bottom of storage tank is provided with storage tank discharge port, storage tank discharge outlet is provided with pneumatic feeding machine, the bottom of pneumatic feeding machine is provided with discharge port, the lower section of pneumatic feeding machine is provided with gravimetric tank, the discharge port of pneumatic feeding machine is connected with the opening for feed at gravimetric tank top by pneumatic feeding machine carrier pipe, pneumatic feeding machine carrier pipe is provided with the 2nd pneumatic pipe valve, 2nd pneumatic pipe valve is connected with the 2nd pressure gas source by pneumatic pipeline, the top of gravimetric tank is provided with gravimetric tank venting port, gravimetric tank venting port is connected with the inlet mouth of gravimetric tank strainer by gravimetric tank pneumatic tube, gravimetric tank pneumatic tube is provided with pneumatic pipe valve of weighing, pneumatic pipe valve of weighing is connected with the 2nd pressure gas source by pneumatic pipeline, the bottom of gravimetric tank is provided with gravimetric tank discharge port, the lower section of gravimetric tank is provided with rotary valve, gravimetric tank discharge port is connected with the opening for feed at rotary valve top by gravimetric tank carrier pipe, gravimetric tank carrier pipe is provided with the 3rd pneumatic pipe valve, 3rd pneumatic pipe valve is connected with the 3rd pressure gas source by pneumatic pipeline, the bottom of described rotary valve is provided with rotary valve discharge port,
Described rotary valve discharge port is connected with the opening for feed being positioned on gas delivery tube wall, the inlet mouth of air delivery tube is connected with the air port that goes out of blower fan, the discharge port of air delivery tube is connected with the opening for feed of divider, and the discharge port of divider 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, the spray amount of sending M (kg/h) of described dry powder alkaline adsorbent and flue gas SO2Concentration C (mg/Nm3) and exhaust gas volumn V (Nm3/ h) pass be:
M=4kCV
Wherein k gets 1.5 �� 10-5-4��10-5��
Technical solution of the present invention, tool has the following advantages:
The dry powder sorbent material flue injection of the present invention is de-except SO3Equipment, can according to SO in flue gas2Concentration, makes SO in the straying quatity of alkaline adsorbent material powder and flue gas3Amount mate mutually. Thus ensure that SO3Removal effect, saving alkaline adsorbent material powder. The dry powder sorbent material flue injection of the present invention is de-except SO3Equipment, described tank top is equipped with micro positive pressure device, for keeping the pressure-fired of 0.4kPa-0.8kPa in storage tank, it is achieved powder protection against the tide and blanking function smoothly. Not only delivery rate is fast for described pneumatic feeding machine, and stable and reliable working performance. In addition, described powder storage tank and gravimetric tank top are provided with strainer, for filter discharge from described tank containing dusty gas, decreasing pollution environment and the dust of operator is injured. The SO of the present invention3De-except equipment, by regulating rotary valve to change material powder injection volume, make SO in alkaline adsorbent injection volume and flue gas3Amount mate mutually. Thus ensure that removal efficiency, thereby saving alkaline adsorbent. Therefore, the dry powder sorbent material flue injection of the present invention is de-except SO3Equipment has de-except SO3Efficiency height, de-except SO3Thoroughly, stable and reliable for performance, to delay SO3The air preheater blocking caused, reduces SO3The upstream device corrosion caused, effectively reduces the SO in flue gas3Content, reduces the destruction to ecotope, and can effectively save the feature of alkaline adsorbent.
Illustrate that the dry powder sorbent material flue injection of the present invention is de-except SO further below in conjunction with drawings and Examples3Equipment.
Accompanying drawing explanation
The dry powder sorbent material flue injection that Fig. 1 is the present invention is de-except SO3The structural representation of equipment.
Embodiment
As shown in Figure 1, the dry powder sorbent material flue injection of the present invention is de-except SO3Equipment, comprise the storage tank 3 for storing dry powder alkaline adsorbent, the top of storage tank 3 is provided with storage tank opening for feed and storage tank venting port, in use, by the storage tank opening for feed at the top of storage tank 3, dry powder alkaline adsorbent is joined in storage tank 3, storage tank venting port is connected with the inlet mouth of storage tank strainer 1 by storage tank pneumatic tube, the dust that storage tank strainer 1 is got rid of in storage tank 3 expellant gas for filtering, the middle part of storage tank pneumatic tube is provided with the first pneumatic pipe valve, first pneumatic pipe valve is connected with the first pressure gas source 2 by pneumatic pipeline, first pressure gas source 2 can control unlatching or the closedown of the first pneumatic pipe valve, the top of storage tank 3 is provided with for making the micro positive pressure device 12 keeping pressure-fired in described storage tank 3, realize moistureproof and blanking function smoothly. the bottom of storage tank 3 is cone angle cone bucket shape down, the bottom of storage tank 3 is provided with storage tank discharge port, storage tank discharge outlet is provided with for the pneumatic feeding machine 4 to material, the bottom of pneumatic feeding machine 4 is provided with discharge port, the lower section of pneumatic feeding machine 4 is provided with the gravimetric tank 6 for weighing, the discharge port of pneumatic feeding machine 4 is connected with the opening for feed at gravimetric tank 6 top by pneumatic feeding machine carrier pipe, in use, realizes the control that storage tank 3 inputs the powder weighed in tank 6 by pneumatic material feeder 4. pneumatic feeding machine carrier pipe is provided with the 2nd pneumatic pipe valve, 2nd pneumatic pipe valve is connected with the 2nd pressure gas source 13 by pneumatic pipeline, 2nd pressure gas source 13 can control unlatching or the closedown of the 2nd pneumatic pipe valve, the top of gravimetric tank 6 is provided with gravimetric tank venting port, gravimetric tank venting port is connected with the inlet mouth of gravimetric tank strainer 5 by gravimetric tank pneumatic tube, the dust that gravimetric tank strainer 5 is got rid of in gravimetric tank 6 expellant gas for filtering, the middle part of gravimetric tank pneumatic tube is provided with pneumatic pipe valve of weighing, pneumatic pipe valve of weighing is connected with the 2nd pressure gas source 13 by pneumatic pipeline, 2nd pressure gas source 13 can control to weigh the unlatching of pneumatic pipe valve or closedown, the bottom of gravimetric tank 6 is provided with gravimetric tank discharge port, the lower section of gravimetric tank 6 is provided with for making material powder enter the rotary valve 7 of air delivery tube, gravimetric tank discharge port is connected with the opening for feed at rotary valve 7 top by gravimetric tank carrier pipe, gravimetric tank carrier pipe is provided with the 3rd pneumatic pipe valve, the pipeline of the 3rd pneumatic pipe valve is connected with the 3rd pressure gas source 14, 3rd pressure gas source 14 can control unlatching or the closedown of the 3rd pneumatic pipe valve, the bottom of rotary valve 7 is provided with rotary valve discharge port,
Described rotary valve discharge port is connected with the opening for feed being positioned on gas delivery tube wall, the inlet mouth of air delivery tube is connected with the air port that goes out of blower fan 9, the discharge port of air delivery tube is connected with the opening for feed of divider 10, the material powder that air delivery tube is carried can be branched in multiple pipeline by divider 10, and the discharge port of divider 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, the spray amount of sending M (kg/h) of described dry powder alkaline adsorbent and flue gas SO2Concentration C (mg/Nm3) and exhaust gas volumn V (Nm3/ h) pass be:
M=4kCV
Wherein k gets 1.5 �� 10-5-4��10-5��
Embodiment 1
Below for certain 600MW coal unit, the invention will be further described by reference to the accompanying drawings.
The present embodiment provides a kind of dry powder sorbent material flue injection de-except SO3Equipment, as shown in Figure 1, comprising:
Storage tank 3, for storing dry powder alkaline adsorbent;
Gravimetric tank 6, is connected with described storage tank 3;
Storage tank 3 is connected by pneumatic material feeder 4 between tank 6 with weighing, and realizes, by pneumatic material feeder 4, the control that powder storage tank 3 leads to the powder in weighing tank 6.
Rotary valve 7, is arranged on below gravimetric tank 6, for making material powder enter air delivery tube;
Divider 10, for material powder shunting air delivery tube carried;
Nozzle 11, is stretched in flue and is connected with described rotary valve 7 by feeding pipeline through divider 10;
Roots blower 9, for supplying gas in air delivery tube, makes material powder be sprayed by nozzle 11 after divider 10 is shunted by air delivery tube;
Micro positive pressure device, for keeping the pressure-fired in storage tank;
Described powder storage tank 3 and gravimetric tank 6 top are respectively arranged with storage tank strainer 1 and gravimetric tank strainer 5, for the dust in Exhaust Gas in hay tank.
Further, described powder storage tank 3 top is also provided with micro positive pressure device, for making the pressure-fired keeping 0.4kPa-0.8kPa in described powder storage tank 1, it is achieved powder is moistureproof and blanking is smooth and easy.
The flue of the present invention between SCR denitration reactor outlet and air preheater injects dry powder sorbent material, and selected sorbent material is calcium hydroxide, and design sorbent material injection volume is 1.3ton/h. Utilize strong basicity and the SO of calcium hydroxide3Reaction, through SO3Analyser detects, and native system can by the SO of air preheater entrance3Mean concns is down to 3.85ppm. Therefore, the dry powder sorbent material flue injection of the present invention is de-except SO3Equipment has de-except SO3Efficiency height, de-except SO3Thoroughly, stable and reliable for performance, to delay SO3The air preheater blocking caused, reduces SO3The upstream device corrosion caused, effectively reduces the SO in flue gas3Content, reduces the destruction to ecotope, and can effectively save the feature of alkaline adsorbent.
Claims (5)
1. the injection of dry powder sorbent material flue is de-except SO3Equipment, it is characterized in that the storage tank (3) comprised for storing dry powder alkaline adsorbent, the top of storage tank (3) is provided with storage tank opening for feed and storage tank venting port, storage tank venting port is connected with the inlet mouth of storage tank strainer (1) by storage tank pneumatic tube, storage tank pneumatic tube is provided with the first pneumatic pipe valve, first pneumatic pipe valve is connected with the first pressure gas source (2) by pneumatic pipeline, the top of storage tank (3) is provided with for making the micro positive pressure device (12) keeping pressure-fired in described storage tank (3), the bottom of storage tank (3) is cone angle cone bucket shape down, the bottom of storage tank (3) is provided with storage tank discharge port, storage tank discharge outlet is provided with pneumatic feeding machine (4), the bottom of pneumatic feeding machine (4) is provided with discharge port, the lower section of pneumatic feeding machine (4) is provided with gravimetric tank (6), the discharge port of pneumatic feeding machine (4) is connected with the opening for feed at gravimetric tank (6) top by pneumatic feeding machine carrier pipe, pneumatic feeding machine carrier pipe is provided with the 2nd pneumatic pipe valve, 2nd pneumatic pipe valve is connected with the 2nd pressure gas source (13) by pneumatic pipeline, the top of gravimetric tank (6) is provided with gravimetric tank venting port, gravimetric tank venting port is connected with the inlet mouth of gravimetric tank strainer (5) by gravimetric tank pneumatic tube, gravimetric tank pneumatic tube is provided with pneumatic pipe valve of weighing, pneumatic pipe valve of weighing is connected with the 2nd pressure gas source (13) by pneumatic pipeline, the bottom of gravimetric tank (6) is provided with gravimetric tank discharge port, the lower section of gravimetric tank (6) is provided with rotary valve (7), gravimetric tank discharge port is connected with the opening for feed at rotary valve (7) top by gravimetric tank carrier pipe, gravimetric tank carrier pipe is provided with the 3rd pneumatic pipe valve, 3rd pneumatic pipe valve is connected with the 3rd pressure gas source (14) by pneumatic pipeline, the bottom of described rotary valve (7) is provided with rotary valve discharge port,
Described rotary valve discharge port is connected with the opening for feed being positioned on gas delivery tube wall, the inlet mouth of air delivery tube is connected with the air port that goes out of blower fan (9), the discharge port of air delivery tube is connected with the opening for feed of divider (10), and the discharge port of divider (10) is connected with the multiple nozzles (11) being positioned at flue by pipeline.
2. dry powder sorbent material flue according to claim 1 injection is de-except SO3Equipment, it is characterised in that keep the pressure-fired of 0.4kPa 0.8kPa in described powder storage tank (3).
3. dry powder sorbent material flue according to claim 2 injection is de-except SO3Equipment, it is characterised in that described blower fan (9) is roots blower.
4. dry powder sorbent material flue according to claim 3 injection is de-except SO3Equipment, it is characterised in that described dry powder alkaline adsorbent is calcium hydroxide or sodium carbonate or sodium bicarbonate.
5. de-except SO according to dry powder sorbent material flue injection described in any one in Claims 1-43Equipment, it is characterised in that the spray amount of sending M (kg/h) of described dry powder alkaline adsorbent and flue gas SO2Concentration C (mg/Nm3) and exhaust gas volumn V (Nm3/ h) pass be:
M=4kCV
Wherein k gets 1.5 �� 10-5-4��10-5��
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610202418.XA CN105617861B (en) | 2016-04-01 | 2016-04-01 | A kind of dry powder adsorbent flue injection removing SO3Equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610202418.XA CN105617861B (en) | 2016-04-01 | 2016-04-01 | A kind of dry powder adsorbent flue injection removing SO3Equipment |
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| CN105617861B CN105617861B (en) | 2019-04-23 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106179739A (en) * | 2016-08-02 | 2016-12-07 | 中国华电科工集团有限公司 | Dust arrester and flue gas ash removal method |
| CN106861375A (en) * | 2017-04-25 | 2017-06-20 | 广州冉升环保工程有限公司 | The device and method that a kind of sulfur trioxide in flue gas is administered |
| CN108636096A (en) * | 2018-06-08 | 2018-10-12 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | The method that alkaline adsorbent flue injects cooperation-removal heavy metal in flue gas and sour gas |
| CN109051815A (en) * | 2018-06-29 | 2018-12-21 | 亚德（上海）环保系统有限公司 | A kind of dry-process deacidification material-transporting system |
| CN113844917A (en) * | 2021-10-08 | 2021-12-28 | 佛山市金银河智能装备股份有限公司 | Powder self-bleeding filtering mechanism |
| CN114159960A (en) * | 2021-10-11 | 2022-03-11 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Alkaline slurry injection SO that can accurate measurement is adjusted3Removal equipment |
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| CN114159960A (en) * | 2021-10-11 | 2022-03-11 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Alkaline slurry injection SO that can accurate measurement is adjusted3Removal equipment |
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Application publication date: 20160601 Assignee: YANGCHENG INTERNATIONAL POWER GENERATION Co.,Ltd. Assignor: CHINA DATANG CORPORATION SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Contract record no.: X2020990000563 Denomination of invention: A device for removing so3by flue injection with dry powder adsorbent Granted publication date: 20190423 License type: Common License Record date: 20201028 Application publication date: 20160601 Assignee: INNER MONGOLIA DATANG INTERNATIONAL TUOKETUO POWER GENERATION Co.,Ltd. Assignor: CHINA DATANG CORPORATION SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Contract record no.: X2020990000564 Denomination of invention: A device for removing so3by flue injection with dry powder adsorbent Granted publication date: 20190423 License type: Common License Record date: 20201028 Application publication date: 20160601 Assignee: YANGCHENG DATANG POWER GENERATION Co.,Ltd. Assignor: CHINA DATANG CORPORATION SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Contract record no.: X2020990000565 Denomination of invention: A device for removing so3by flue injection with dry powder adsorbent Granted publication date: 20190423 License type: Common License Record date: 20201028 |