CN106215626A - A kind of high atomization flue gas desulfurization processing method - Google Patents

A kind of high atomization flue gas desulfurization processing method Download PDF

Info

Publication number
CN106215626A
CN106215626A CN201610634341.3A CN201610634341A CN106215626A CN 106215626 A CN106215626 A CN 106215626A CN 201610634341 A CN201610634341 A CN 201610634341A CN 106215626 A CN106215626 A CN 106215626A
Authority
CN
China
Prior art keywords
flue gas
water
processing method
buffer agent
desulfurization
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
Application number
CN201610634341.3A
Other languages
Chinese (zh)
Inventor
刘秉武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610634341.3A priority Critical patent/CN106215626A/en
Publication of CN106215626A publication Critical patent/CN106215626A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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 absorption
    • B01D53/1456Removing acid components
    • B01D53/1481Removing sulfur dioxide or sulfur trioxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60Combinations of devices covered by groups B01D46/00 and B01D47/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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 absorption
    • B01D53/1456Removing acid components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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 absorption
    • B01D53/1487Removing organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/40Nitrogen compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • C02F2101/22Chromium or chromium compounds, e.g. chromates
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a kind of high atomization flue gas desulfurization processing method, it is characterised in that: aoxidizing first with buffer agent and both sexes and the pollutant absorption in flue gas removed by the method for spray atomizing, waste water continues with generation white carbon, middle Water Sproading utilizes.Present invention advantage compared with prior art is: the present invention provides a kind of and utilizes containing buffer agent, the liquid of amphoteric oxide, the method mixed by spray atomizing, absorb desorption sulfur dioxide in flue gas, nitrogen oxides and organic compound, reduce the pollution to air, water consumption is few, improve rate of sulphur expulsion, reduce production cost, and the method that after utilizing desulfurization, wastewater sedimentation method generates white carbon, reach solution desulfurization, waste water, Solid state fermentation, and obtain the preferable economic benefit and social benefit achieved many things at one stroke.

Description

A kind of high atomization flue gas desulfurization processing method
Technical field
The present invention relates to fume treatment technical field, specifically refer to a kind of high atomization flue gas desulfurization processing method.
Background technology
Along with industrial expansion and the raising of people's living standard, environmental pollution is day by day serious and people to environmental problem also Increasingly paying attention to, how improving environmental quality is the problem that people are solving always, China's sulfur dioxide and discharged nitrous oxides Measuring huge, sulfur dioxide and nitrogen oxides are the main matter of environmental pollution, in order to process sulfur dioxide and the nitrogen oxidation of generation Thing countries in the world exploitation desulphurization denitration technology be up to hundreds of, the current application on site of China mainly have limestone-gypsum, ammonia The multiple desulphurization denitration technology such as method desulfurization, seawater method, Dual alkali.
Limestone-based process: being at present most in China's the method in order to desulfurization, reason is technology maturation, and raw material easily takes , but consume substantial amounts of limestone resource, desulfurization produces substantial amounts of CO2, operating cost is high, investment greatly, easily block, easily cause Secondary pollution;In waste discharge flue gas easily the lowest with the component efficiency containing Desulphurization, cause atmospheric pollution to increase the weight of.
Dual alkali: complex process, unmanageable, desulphurization denitration fluctuation are big, desulfurization afterproduct doped with various ash and The more difficult life of NaSO4, NaSO4, need to constantly supplement NaOH, thus add the consumption of alkali, and waste residue is difficult.
Seawater method: easily polluted by heavy metals, limited by region, invest greatly.
Ammonia process: transport storage difficulty, complex process, investment are big.General medium-sized and small enterprises cannot invest.
Along with the environmental protection of desulphurization denitration is put more effort by China, a lot of technology have not caught up with the development of national conditions, and investment is big, work Skill is complicated, waste residue utilization rate is low, power consumption is high, shipping storage is difficult, and easily causes haze formation, is badly in need of one and invests little, technique Simply, Automated condtrol, the new desulfurizing and denitrifying process discharged without waste water and dregs it are prone to, in order to be adapted to large, medium and small multiple stove The application of type.
Summary of the invention
The technical problem to be solved in the present invention be overcome above technological deficiency to provide one little, the technique of investment is simple, be prone to Automated condtrol, the new desulfurizing and denitrifying process discharged without waste water and dregs, in order to be adapted to the application of the large, medium and small multiple type of furnace A kind of high atomization flue gas desulfurization processing method.
For solving above-mentioned technical problem, the technical scheme that the present invention provides is: a kind of high atomization flue gas desulfurization processing method, Comprise the following steps:
(1), choosing buffer agent and amphoteric oxide mixes with water as mixture, mixture concentration in water is 1 ‰ ~5 ‰;
(2), fume pipe and spray atomizing tower or is dynamically connected except fog chamber, described spray atomizing tower or dynamically remove in fog chamber Portion's structure mainly includes housing, is provided with at smoke inlet and is sequentially provided with sprinkler head, cold plate, flue gas sieve in described housing Net, blower fan and exhanst gas outlet, the bottom of described housing is additionally provided with discharge outlet;Flue gas is carried out the most clear by spray atomizing Washing, the flue gas after cleaning is condensed by the segmentation of cold plate, then makes flue gas enter flue gas screen cloth by negative pressure and screens out in flue gas Dust granules, the flue gas after process is discharged from exhanst gas outlet;
(3), the sewage in step 2 is sent into detention tank, after precipitation, clear liquid is collected and enter next process;
(4) clear liquid, after precipitation is acid pickle, is mixed with sodium silicate solution by acid pickle, and the material of generation is adsorbable to give up The heavy metals such as cadmium in water, hydrargyrum, lead, chromium;
(5), being separated from water by the precipitate in step 4, the middle water separated may be used on, in step 1, playing circulation The purpose utilized;
(6), the precipitate of isolated in step 5 is dried obtains white carbon;
Described buffer agent is citric acid, sodium citrate, ferrous sulfate, zinc sulfate, and described amphoteric oxide is oxidation Zinc, magnesium oxide.
The wash tub pipe for rinsing flue gas screen cloth 4 it is additionally provided with in described housing 1.
The buffer agent used is sodium citrate, and amphoteric oxide used is zinc oxide.
Present invention advantage compared with prior art is: the present invention provides a kind of and utilizes containing buffer agent, both sexes oxidation The liquid of thing, the method mixed by spray atomizing, absorb desorption sulfur dioxide in flue gas, nitrogen oxides and organic compound, Reducing the pollution to air, water consumption is few, improves rate of sulphur expulsion, reduces production cost, and utilizes wastewater sedimentation method life after desulfurization The method becoming white carbon, has reached solution desulfurization, waste water, Solid state fermentation, and obtain the preferable economic benefit achieved many things at one stroke and Social benefit.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention a kind of high atomization flue gas desulfurization processing method.
Fig. 2 is the structural representation of the present invention a kind of high atomization flue gas desulfurization processing method.
As shown in the figure: 1, housing, 2, sprinkler head, 3, cold plate, 4, flue gas screen cloth, 5, blower fan, 6, exhanst gas outlet, 7, draining Mouthful, 8, smoke inlet, 9, flue gas screen cloth rotating shaft.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
Current domestic desulphurization denitration technology has obtained rapid progress, high efficiency, low cost, more conveniently desulfurizing agent also meet the tendency and Raw, but after desulfurization, waste water solves without good way, and after desulfurization, waste residue is more intractable, and heavy metals content is higher.
A kind of high atomization flue gas desulfurization processing method, it is characterised in that: comprise the following steps:
(1), choose sodium citrate and zinc oxide mixes with water as mixture, mixture concentration in water be 1 ‰~ 5‰;
(2), fume pipe and spray atomizing tower or is dynamically connected except fog chamber, described spray atomizing tower or dynamically remove in fog chamber Portion's structure mainly includes housing 1, is provided with at smoke inlet and is sequentially provided with sprinkler head 2, cold plate 3, flue gas in described housing 1 Screen cloth 4, blower fan 5 and exhanst gas outlet 6, the bottom of described housing 1 is additionally provided with discharge outlet 7;By spray atomizing, flue gas carried out Once cleaning, the flue gas after cleaning is condensed by the segmentation of cold plate, then makes flue gas enter flue gas screen cloth by negative pressure and screens out cigarette Dust granules in gas, the flue gas after process is discharged from exhanst gas outlet;
(3), the sewage in step 2 is sent into detention tank, after precipitation, clear liquid is collected and enter next process;
(4) clear liquid, after precipitation is acid pickle, is mixed with sodium silicate solution by acid pickle, and the material of generation is adsorbable to give up The heavy metals such as cadmium in water, hydrargyrum, lead, chromium;
(5), being separated from water by the precipitate in step 4, the middle water separated may be used on, in step 1, playing circulation The purpose utilized;
(6), the precipitate of isolated in step 5 is dried obtains white carbon;
The wash tub pipe for rinsing flue gas screen cloth 4 it is additionally provided with in described housing 1.
Sodium citrate, zinc oxide are as follows with the reaction formula of flue gas:
SO2+RCOONa+H2O→NaHSO3+RCOOH
NaHSO2+1/2O2+RCOONa→Na2SO4+RCOOH
ZnO+SO2+2.5H2O→ZnSO3·2.5H2O
ZnO+2SO2+H2O→Zn(HSO3)2
After desulfurization, acid pickle is as follows with sodium silicate solution precursor reactant formula:
Na2O·nSiO2+H2SO4→Na2SO4+nSiO3·H2O
White carbon is used for the sector application such as coating, rubber, and middle water can continue reuse, reaches to cause secondary dirty without waste water and dregs The purpose of dye.
In a particular embodiment, long in time limit due to spray atomizing tower cost height, it is adaptable to large-scale flue gas desulfurization, for little The flue gas desulfurization of type can use dynamically except fog chamber, dynamically can the size of desulfurization fume amount according to specific needs set except fog chamber Fixed, low cost.
Flue gas enters spray atomizing tower or dynamically except fog chamber, carries out cleaning for the first time to flue gas by spray atomizing, due to Containing moisture in flue gas after cleaning, can will be discharged after the condensate moisture in flue gas by cold plate, flue gas enters dynamic screen cloth Dust granules in flue gas can be separated, mesh density can be set according to the smoke density processed, by power set (electricity Machine) drive dynamic screen cloth to rotate, dynamic screen cloth is again to flue gas and filtering dust, and the droplet of condensation throws tank wall by rotation, for Avoid the strong adsorptivity of flue dust, wash tub pipe is installed in housing, automatically screen cloth carried out variable interval according to pressure change clear Washing, sewage is discharged by discharge outlet, is sent to detention tank, and after precipitation, clear liquid enters next operation use, reaches to control cigarette The purpose that in gas, dust and droplet dam.
The present invention process to flue gas, does not has waste water, waste residue, non-secondary pollution, and treatment effect is preferable.
Being described the present invention and embodiment thereof above, this description does not has restricted, shown in accompanying drawing yet Simply one of embodiments of the present invention, actual structure is not limited thereto.If the generally speaking ordinary skill of this area Personnel are enlightened by it, in the case of without departing from the invention objective, design and this technical scheme phase without creative As frame mode and embodiment, protection scope of the present invention all should be belonged to.

Claims (3)

1. a high atomization flue gas desulfurization processing method, it is characterised in that: comprise the following steps:
(1), choose buffer agent and amphoteric oxide mixes with water as mixture, mixture concentration in water be 1 ‰~ 5‰;
(2), fume pipe and spray atomizing tower or is dynamically connected except fog chamber, described spray atomizing tower or dynamically remove fog chamber internal junction Structure mainly includes housing (1), be provided with at smoke inlet in described housing (1) be sequentially provided with sprinkler head (2), cold plate (3), Flue gas screen cloth (4), blower fan (5) and exhanst gas outlet (6), the bottom of described housing (1) is additionally provided with discharge outlet (7);By spray mist Changing and carry out flue gas cleaning for the first time, the flue gas after cleaning is condensed by the segmentation of cold plate, then makes flue gas enter by negative pressure Flue gas screen cloth screens out the dust granules in flue gas, and the flue gas after process is discharged from exhanst gas outlet;
(3), the sewage in step 2 is sent into detention tank, after precipitation, clear liquid is collected and enter next process;
(4), precipitation after clear liquid be acid pickle, acid pickle is mixed with sodium silicate solution, in the adsorbable waste water of material of generation Cadmium, hydrargyrum, lead, the heavy metal such as chromium;
(5), being separated from water by the precipitate in step 4, the middle water separated may be used on, in step 1, playing and recycling Purpose;
(6), the precipitate of isolated in step 5 is dried obtains white carbon;
Described buffer agent is citric acid, sodium citrate, ferrous sulfate, zinc sulfate, and described amphoteric oxide is zinc oxide, oxygen Change magnesium.
A kind of high atomization flue gas desulfurization processing method the most according to claim 1, it is characterised in that: described housing (1) Inside it is additionally provided with the wash tub pipe for rinsing flue gas screen cloth (4).
A kind of high atomization flue gas desulfurization processing method the most according to claim 1, it is characterised in that: the buffer agent used For sodium citrate, amphoteric oxide used is zinc oxide.
CN201610634341.3A 2016-08-04 2016-08-04 A kind of high atomization flue gas desulfurization processing method Pending CN106215626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610634341.3A CN106215626A (en) 2016-08-04 2016-08-04 A kind of high atomization flue gas desulfurization processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610634341.3A CN106215626A (en) 2016-08-04 2016-08-04 A kind of high atomization flue gas desulfurization processing method

Publications (1)

Publication Number Publication Date
CN106215626A true CN106215626A (en) 2016-12-14

Family

ID=57547069

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610634341.3A Pending CN106215626A (en) 2016-08-04 2016-08-04 A kind of high atomization flue gas desulfurization processing method

Country Status (1)

Country Link
CN (1) CN106215626A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106731608A (en) * 2017-01-04 2017-05-31 长沙汇聚环境技术有限公司 A kind of administering method of waste gas containing lead
CN107051152A (en) * 2017-01-04 2017-08-18 长沙汇聚环境技术有限公司 A kind of method of the leaded treating flour dust of sintering machine wet desulfurization flue gas
CN108043198A (en) * 2017-12-06 2018-05-18 安徽凤阳赛吉元无机材料有限公司 A kind of method for preparing doctor solution using waterglass water quenching water
CN108355464A (en) * 2018-04-27 2018-08-03 马鞍山金安环境科技有限公司 A kind of stuffing spray-washing sewage deodorizing device
CN112772972A (en) * 2019-11-06 2021-05-11 上海新型烟草制品研究院有限公司 Water smoke filters smoking set
CN120204909A (en) * 2025-03-31 2025-06-27 江苏敏禾科技有限公司 Industrial flue gas water glass desulfurization device and desulfurization method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101530730A (en) * 2009-04-17 2009-09-16 华东理工大学 Method for simultaneously treating waste gas pollution of NOX and SO2
CN201815236U (en) * 2010-10-13 2011-05-04 中国石油化工股份有限公司 Gas-liquid cross-flow contact device
CN205269381U (en) * 2015-11-25 2016-06-01 龙南县京利有色金属有限责任公司 Aeration tower on europia production line

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101530730A (en) * 2009-04-17 2009-09-16 华东理工大学 Method for simultaneously treating waste gas pollution of NOX and SO2
CN201815236U (en) * 2010-10-13 2011-05-04 中国石油化工股份有限公司 Gas-liquid cross-flow contact device
CN205269381U (en) * 2015-11-25 2016-06-01 龙南县京利有色金属有限责任公司 Aeration tower on europia production line

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106731608A (en) * 2017-01-04 2017-05-31 长沙汇聚环境技术有限公司 A kind of administering method of waste gas containing lead
CN107051152A (en) * 2017-01-04 2017-08-18 长沙汇聚环境技术有限公司 A kind of method of the leaded treating flour dust of sintering machine wet desulfurization flue gas
CN108043198A (en) * 2017-12-06 2018-05-18 安徽凤阳赛吉元无机材料有限公司 A kind of method for preparing doctor solution using waterglass water quenching water
CN108355464A (en) * 2018-04-27 2018-08-03 马鞍山金安环境科技有限公司 A kind of stuffing spray-washing sewage deodorizing device
CN108355464B (en) * 2018-04-27 2024-07-16 马鞍山金安环境科技有限公司 Filling type spraying and washing sewage deodorizing device
CN112772972A (en) * 2019-11-06 2021-05-11 上海新型烟草制品研究院有限公司 Water smoke filters smoking set
CN112772972B (en) * 2019-11-06 2025-03-18 上海新型烟草制品研究院有限公司 A water mist filtering smoking device
CN120204909A (en) * 2025-03-31 2025-06-27 江苏敏禾科技有限公司 Industrial flue gas water glass desulfurization device and desulfurization method

Similar Documents

Publication Publication Date Title
CN106215626A (en) A kind of high atomization flue gas desulfurization processing method
CN102008886B (en) Zinc oxide wet turbulent washing flue gas desulfurization device and process
CN105727720A (en) Spiral bubble flue gas cleaning device
CN102380308A (en) Sintering flue gas desulfurization and purification method and equipment
CN101347706A (en) Flue gas desulfurization technique using dual alkali method with acetylene sludge as recycling agent
CN104474878A (en) Double-tower double-medium energy-saving high-efficiency flue gas desulfurization dust-removal combined device
CN201304321Y (en) A closed cycle desulphurization denitration and sulphur reclamation device
CN102631837B (en) Integrated type sulfur-containing waste gas purifying device
CN202478814U (en) Integral equipment integrating downstream washing desulfuration with ozone jetting back-flow denitration
CN107261778A (en) A kind of flue gas high-efficiency desulfurization equipment and processing method
CN204806906U (en) Big flue low temperature waste gas waste heat recovery of sintering and purifier
CN105032173A (en) Device and process of ammonia-soda-process combined desulfurization and denitrification
CN209501361U (en) Novel energy-conserving Complexing Iron desulphurization plant
CN108261913B (en) A kind of magnesium oxide semi-dry desulfurization process
CN212523615U (en) Water-saving and white-removing device for sulfur dioxide in zinc oxide removal flue gas
CN212819076U (en) System for flue gas pollutant degree of depth desorption
CN108404654A (en) A kind of garbage incinerating power plant flue gas purification system
CN103691294A (en) Device and technology for wet-type double-alkali method-based desulphurization and dedusting
CN106039941A (en) Method used for desulphurization and denitration closed cycle and sulfur resource recovery
CN107899399A (en) A kind of low-temperature denitration technique of flue gas cleaning discharge
CN206121505U (en) Flue gas desulphurization device of zinc smelting power plant for self -supply
CN204502800U (en) A kind of ammonia-soda process combined desulfurization and denitration device
CN205461702U (en) Haze processing system
CN211487169U (en) Sodium-alkali desulfurization unit
CN208177247U (en) A waste incineration power plant flue gas purification system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
AD01 Patent right deemed abandoned

Effective date of abandoning: 20200228

AD01 Patent right deemed abandoned