CN106090967A - A kind of boiler energy-saving environment protection method and device - Google Patents

A kind of boiler energy-saving environment protection method and device Download PDF

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Publication number
CN106090967A
CN106090967A CN201610362091.2A CN201610362091A CN106090967A CN 106090967 A CN106090967 A CN 106090967A CN 201610362091 A CN201610362091 A CN 201610362091A CN 106090967 A CN106090967 A CN 106090967A
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CN
China
Prior art keywords
aerosol
alkalescence
alkaline
boiler
boiler energy
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CN201610362091.2A
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Chinese (zh)
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杨天宇
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Individual
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Priority to CN201610362091.2A priority Critical patent/CN106090967A/en
Publication of CN106090967A publication Critical patent/CN106090967A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • 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
    • B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
    • 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
    • B01D53/76—Gas phase processes, e.g. by using aerosols
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/10—Gas phase, e.g. by using aerosols
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/10—Nitrogen; Compounds thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/10—Nitrogen; Compounds thereof
    • F23J2215/101—Nitrous oxide (N2O)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/20—Sulfur; Compounds thereof

Abstract

The present invention provides a kind of boiler energy-saving environment protection method and device.Including apparatus for aerosol creation and carrier, alkaline solution is prepared as alkalescence aerosol；And described alkalescence aerosol delivery being participated in burning to boiler furnace, to form alkalescence burning situation in burner hearth, it is achieved alkalescence aerosol and solid fuel reach to burn completely or close to burning completely.Compared with traditional desulphurization and denitration device, small investment, floor space is little, has minimizing Coal-fired capacity and improves boiler thermal output and reduce the dual unique effects of pollutant emission simultaneously, and the suitability is strong, is widely used.

Description

A kind of boiler energy-saving environment protection method and device
Technical field
The present invention relates to a kind of boiler energy-saving environment protection method and device, belong to energy-conserving and environment-protective technical field.
Background technology
It is known that energy-consuming is to cause a main cause of current ecological deterioration, especially coal directly making For in energy combustion process, there is efficiency problem low, with serious pollution.Statistics shows, China enters the pollution of air every year Thing has the flue dust of 80%, the SO of 87%2, the NOx of 67% derives from burning of coal.The atmospheric pollution of China be mainly boiler, Kiln fire coal produces the coal-smoke pollution that flue gas is formed.The pollution of burning becomes increasingly conspicuous, and occurs haze weather the most in the recent period, makes Obtain China's energy resource structure problem based on coal burning to reproduce.Reducing coal burning amount, controlling pollutant discharge amount is when business Anxious, and current energy-conserving and environment-protective technology mainly includes desulphurization denitration and the clean-burning technology that boiler smoke processes.
The limestone-gypsum method flue gas desulfurization technology of coal-fired flue-gas is the desulfurization technology that current application is the widest, efficiency is the highest. The mechanism of limestone-gypsum method flue gas desulfurization is: is added water by agstone and makes serosity and pump into absorption tower and cigarette as absorbent Gas is fully contacted mixing, and the sulfur dioxide in flue gas and the calcium carbonate in serosity and the air blasted from tower bottom aoxidize Reaction generates calcium sulfate, thus removes the SO in flue gas2.The shortcoming of this technique is obvious, and such as initial investment is costly, Operating cost is high, and system complex, erosion corrosion phenomenon is the most serious.
Selective catalytic reduction flue gas denitration technology (SCR) controls to boiler smoke NOx that effect is very notable, technology more Maturation, the most become apply in the world at most, the most fruitful a kind of gas denitrifying technology.SCR technology refers to urge at metal Under the effect of agent, be reducing agent in temperature range with liquefied ammonia it is 300～400 DEG C of removing nitrogen oxides in effluents.SCR technology Shortcoming is that operating cost is high, is mainly manifested in the renewal cost height of catalyst, reducing agent consumption costs height, NH in addition3Itself is also Being a kind of atmosphere pollution, and currently used most of catalyst are all poisonous, the control of this material and process are still It it is so problem.
Summary of the invention
For the technical problem of above-mentioned existence, the present invention provides a kind of boiler energy-saving environment protection method and device, it is possible to save Coal-fired capacity improves boiler thermal output, simultaneously effective reduces the sulfur dioxide after boiler combustion and the content of nitrogen oxides, reduces Pollutant emission, and its simple in construction, it is possible to be applied to various types of boiler, the suitability is wide, makes boiler reach efficiently, saves Energy, the needs of environmental protection.
In order to achieve the above object, the technical scheme is that a kind of boiler energy-saving environment protection method, it is characterised in that In fuel combustion process, to burner hearth conveying alkalescence aerosol to form alkalescence burning situation, specifically include following steps: at gas Alkaline solution is prepared as alkalescence aerosol by colloidal sol generating means；Described alkalescence aerosol is transported to boiler by carrier Burner hearth.
Moreover, it relates to a kind of boiler energy-saving environmental protecting device, including: apparatus for aerosol creation, for by alkalescence Solution is prepared as alkalescence aerosol；Carrier, for participating in described alkalescence aerosol delivery in burning to boiler furnace, with at stove Thorax is formed alkalescence burning situation.
Boiler energy-saving environmental protecting device also includes that blender, alkaline matter and water are mixed into alkaline solution, institute in blender State alkaline matter and be preferably sodium bicarbonate or sodium hydroxide.
Described apparatus for aerosol creation is nebulizer, and the most described nebulizer uses sound wave atomization, is internally provided with sound wave Generator, alkaline aerocolloidal dispersed phase size is preferably 0.8-10.8 μm.
Boiler energy-saving environmental protecting device also includes automatic control cabinet, and apparatus for aerosol creation, blender and automatic control cabinet are equal For cuboid box structure, and from top to bottom setting gradually, automatic control cabinet is for controlling mixing and the alkali of alkaline solution The aerocolloidal preparation of property and conveying.
The aerocolloidal pumped (conveying) medium of alkalescence is high-pressure hot wind, and the temperature range of hot blast is preferably between 200-350 DEG C.
The present invention contrasts prior art, has following beneficial effect: by alkaline solution condensation aerosol technology, constitutes Base catalysis burns, so that burning is more abundant, improves boiler efficiency；By alkaline solution condensation aerosol technology, improve Boiler combustion condition, thus process sulfide, itrated compound in burning link so that emission pollutant load is up to standard.
1, save the energy, improve efficiency
Alkalescence aerosol burns in stove with solid fuel, it is possible to accelerates burning of coal reaction, reaches to burn completely or connect Closely burn completely, reduce Coal-fired capacity and improve boiler thermal output.
2, sulfur dioxide and the discharge of nitrogen oxides are reduced
The pollutant acid gas such as SO that alkalescence aerosol produces with burning2、NOXReact Deng occurring to neutralize, thus reduce pollution Thing discharges.
In sum, the boiler energy-saving environmental protecting device of the present invention compared with traditional desulphurization and denitration device, small investment, account for Ground area is little, has minimizing Coal-fired capacity and improves boiler thermal output and reduce the dual unique effects of pollutant discharge amount simultaneously, suitable Strong by property, it is widely used.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention；
Fig. 2 is the structural representation of the present invention；
Wherein: 1-automatic control cabinet；2-blender；3-nebulizer；4-boiler；5-pond；6-alkaline matter storage tank；7-flows Gauge one；8-electromagnetic valve one；9-pump；10-Pressure gauge；11-effusion meter two；12-electromagnetic valve two；13-carrier；14-carries Jie Matter.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, and it is as follows to coordinate accompanying drawing to describe in detail.
As it is shown in figure 1, the boiler energy-saving environment protection method of the present invention is in fuel combustion process, to burner hearth conveying alkalescence gas Colloidal sol, to form base catalysis burning situation, specifically includes following steps: prepared by alkaline solution in apparatus for aerosol creation Become alkalescence aerosol；Alkalescence aerosol is transported to boiler furnace by carrier.
Wherein alkaline solution can be prepared by blender.Alkaline matter and water are delivered to blender, proportionally Mixing.Alkaline matter can be sodium bicarbonate or sodium hydroxide.
Apparatus for aerosol creation is aerosol atomizing device, and the alkalescence aerocolloidal particle size of atomization is 0.8-10.8 μm； Atomizing type can be sound wave atomization.
In course of conveying, carrier, such as pipeline and blower fan can be passed through, by alkalescence aerosol delivery to Boiler Furnace Thorax, preferably conveying gas is high-pressure hot wind, and the temperature range of hot blast is between 200-350 DEG C.
As in figure 2 it is shown, boiler energy-saving environmental protecting device includes blender 2, apparatus for aerosol creation 3 and carrier 13.Mixing Device 2 is for being mixed into alkaline solution by alkaline matter and water.Apparatus for aerosol creation 3 for being prepared as alkalescence gas by alkaline solution Colloidal sol.Carrier 13 is used for alkalescence aerosol delivery to boiler furnace.
Blender 2 includes alkaline matter import and water inlet.Alkaline matter storage tank 6 and the alkaline matter import of blender 2 Connection, pond 5 connects with the water inlet of blender 2.Alkaline matter inlet pipeline between alkaline matter storage tank 6 and blender 2 On be disposed with effusion meter 1 and electromagnetic valve 1.It is disposed with pump on water inlet pipeline between pond 5 and blender 2 9, Pressure gauge 10, effusion meter 2 11 and electromagnetic valve 2 12.In blender 2, agitator, alkaline matter and high pressure can also be set Water realizes uniformly mixing in blender 2.Alkaline matter can be sodium bicarbonate or sodium hydroxide.The alkaline solution of blender 2 Outlet is connected with the alkaline solution import of apparatus for aerosol creation 3.
Apparatus for aerosol creation 3 is positioned on blender 2, and blender 2 both sides are respectively arranged with solution output channel, aerosol Generating means 3 is connected with blender 2 by solution output channel.Apparatus for aerosol creation 3 is aerosol atomizing device, alkaline solution The alkaline aerosol that liquid particle is 0.8-10.8 μm it is atomized in nebulizer.Nebulizer can be Sonic nebulizers, interior Portion is provided with sonic generator, is atomized by the alkaline solution of mix homogeneously by altofrequency sound wave.Sonic generator is preferably super Sonic wave vibrator.
The both sides of apparatus for aerosol creation 3 are provided with pumped (conveying) medium connector, and pumped (conveying) medium 14 passes through blower fan by carrying Jie Matter connector enters apparatus for aerosol creation 3, is carried by alkaline aerocolloidal delivery outlet by the alkaline aerosol that atomization generates Output, the alkaline aerocolloidal delivery outlet of apparatus for aerosol creation 3 is positioned at body top, with the alkaline aerosol import of carrier 13 Connect, and be delivered to the burner hearth of boiler 4 by carrier 13.
The carrier 13 of boiler energy-saving environmental protecting device uses pressed gas to carry alkalescence aerosol.Carrier 13 wraps Including the pipeline being connected with boiler furnace and the blower fan being disposed thereon, pumped (conveying) medium is empty by alkalescence aerosol delivery to burner hearth Between, participate in burning.Pumped (conveying) medium 14 can be high-pressure hot wind, and hot blast temperature scope is between 200-350 DEG C.
Boiler energy-saving environmental protecting device also includes automatic control cabinet 1.Automatic control cabinet 1 is made up of regulator cubicle, control system etc., For electric, observing and controlling, adjustment etc..Sonic generator, agitator, blower fan, effusion meter 1, effusion meter 2 11, electromagnetic valve 1, electricity Magnet valve 2 12, Pressure gauge 10 and pump 9 are all connected with the control system in automatic control cabinet 1, it is achieved to alkaline matter and water Ratio controls, and alkaline aerocolloidal preparation and conveying control, and reach accurately to control to spray into the amount of the alkaline matter of burner hearth, thus more Add the technique effect of the raising efficiency of combustion being advantageously carried out in boiler furnace desulphurization and denitration simultaneously.
Automatic control cabinet 1, blender 2, apparatus for aerosol creation 3 are cuboid box structure, and the most successively Arrange.Blender 2 is arranged on automatic control cabinet 1, can not only dispel the heat the electronic component in automatic control cabinet 1, i.e. The heat produced in utilizing solution in blender and automatic control cabinet 1 carries out heat exchange, thus beneficially electronic control cabinet Heat radiation, and beneficially alkaline matter dissolves in water, forms uniform alkaline solution.Apparatus for aerosol creation 3 is arranged on mixed In clutch 2, it is possible to effectively shorten the duct length between blender 2 and apparatus for aerosol creation 3.Apparatus for aerosol creation 3 sets Put the top at energy-saving environmental protection device, be conducive to the alkaline aerosol generated directly to draw from the top of apparatus for aerosol creation 3 Go out and be delivered to boiler furnace, convenient installation.Automatic control cabinet 1, blender 2 and apparatus for aerosol creation 3 three are stacked up and down, knot Structure is compact, it is simple to mobile, it is possible to use with boiler combination neatly, applied widely.
This device relies on alkaline solution to be atomized into aerosol and participates in combustion technology, utilizes sonic generator, makes alkaline solution Atomization is aerosol, generates the alkaline aerosol of 0.8-10.8 μm, and this alkalescence aerosol not only specific surface area is very big, and inhales Attached vigor is the strongest, it is possible to moment adsorbs, and can accelerate chemical reaction.The alkaline aerosol of alkaline matter is entering into boiler furnace Contact with solid fuel afterwards, it is possible to accelerate burning of coal reaction, the alkaline aerosol of alkaline matter and the alkali of the fuel of solid phase state Property burning belong to catalysis burning, the burning of its mechanism of action and conventional catalyst has a great difference.In chemical reaction process, alkalescence The aerocolloidal addition of alkalescence of material can not change original molecular balance, and changed is only chemical reaction velocity, instead Before and after should, the character of alkalescence aerosol itself change.In catalyticing combustion process, alkalescence aerosol is anti-with high bond energy Answer thing and low bond energy product to be respectively formed the transition state of different degree of stability, make reactant random collision " be attracted " at catalyst table Collide in order on face, improve effective collision number of times, former according to energy minimum under alkaline aerocolloidal coordinated electronic participates in Then, produce the product of low bond energy, release heat simultaneously, thus reach to burn completely or close to the purpose burnt completely, be conducive to Improve boiler combustion efficiency 0.5～1%.The acid pollution gas that the alkaline aerosol of alkaline matter can also produce with burning simultaneously Body such as SO2、NOXReact Deng occurring to neutralize, thus reduce pollution.Alkalescence aerosol specific surface area is more than 20m2/ g, has tradition de- The chemical kinetics advantage that sulfur, denitration technology are incomparable.As can be seen here, the alkaline aerosol of alkaline matter is not only in burner hearth Participate in burning, improve efficiency of combustion, and in whole combustion process, it is possible to pollutant acid gas such as SO2、NOXDeng generation Reaction, greatly reduces the generation of nitrogen oxides and sulfur dioxide, and then reaches clean combustion and improve boiler combustion efficiency Double effects.
On the basis of having carried out a large amount of technical investigation and market exploration, it is determined that utilize and carry out energy-conservation in coal burning link Potentiation, desulphurization and denitration process alkaline matter aerosol combustion technology, be a kind of clean burning comprehensive control boiler waste gas former Firstly appear new technique.At present in China most absolutely boiler desulfurization, denitration Treatment process, it processes technique and belongs to passiveness passively " consuming " type treatment technology, enterprise exchanges the improvement of discharge quality for increase input often.And alkaline matter aerosol combustion Technical finesse boiler harmful exhaust is possible not only to reduce the generation of master control pollutant, also has the effect of catalysis burning to coal burning Really, efficiency of combustion can be effectively improved, reduce smoke discharge amount, reach the purpose that cleaning produces.
Although the present invention discloses as above with preferred embodiment, so it is not limited to the present invention, any this area skill Art personnel, without departing from the spirit and scope of the present invention, when making a little amendment and perfect, the therefore protection model of the present invention Enclose when with being as the criterion that claim is defined.

Claims (10)

1. a boiler energy-saving environment protection method, it is characterised in that in fuel combustion process, to burner hearth conveying alkalescence aerosol with Form base catalysis burning situation, specifically include following steps:
In apparatus for aerosol creation, alkaline solution is prepared as alkalescence aerosol；
Described alkalescence aerosol is transported to boiler furnace by carrier.
2. boiler energy-saving environment protection method as claimed in claim 1, it is characterised in that further comprising the steps of: by alkaline matter Being mixed into alkaline solution in blender with water, alkaline matter is preferably sodium bicarbonate or sodium hydroxide.
3. boiler energy-saving environment protection method as claimed in claim 1 or 2, it is characterised in that described apparatus for aerosol creation is mist Changing device, the most described nebulizer uses sound wave atomization, and it is internally provided with sonic generator, the aerocolloidal dispersion phase of described alkalescence It is preferably 0.8-10.8 μm.
4. boiler energy-saving environment protection method as claimed in claim 2, it is characterised in that also including automatic control cabinet, aerosol is raw Becoming device, blender and automatic control cabinet is cuboid box structure, and from top to bottom sets gradually, and automatic control cabinet is used for Control the mixing of alkaline solution and alkaline aerocolloidal preparation and conveying.
5. the boiler energy-saving environment protection method as described in any one of Claims 1-4, it is characterised in that alkaline aerocolloidal conveying Medium is high-pressure hot wind；The preferably temperature range of hot blast is between 200-350 DEG C.
6. a boiler energy-saving environmental protecting device, it is characterised in that including:
Apparatus for aerosol creation, for being prepared as alkalescence aerosol by alkaline solution；
Carrier, for participating in described alkalescence aerosol delivery in burning to boiler furnace, to form alkalescence burning in burner hearth Environment.
7. boiler energy-saving environmental protecting device as claimed in claim 6, it is characterised in that also include blender, alkaline matter and water Being mixed into alkaline solution in blender, described alkaline matter is preferably sodium bicarbonate or sodium hydroxide.
Boiler energy-saving environmental protecting device the most as claimed in claims 6 or 7, it is characterised in that described apparatus for aerosol creation is mist Changing device, the most described nebulizer uses sound wave atomization, is internally provided with sonic generator, and alkaline aerocolloidal dispersed phase size is excellent Elect 0.8-10.8 μm as.
9. boiler energy-saving environmental protecting device as claimed in claim 7 or 8, it is characterised in that also include automatic control cabinet, aerosol Generating means, blender and automatic control cabinet are cuboid box structure, and from top to bottom set gradually, and automatic control cabinet is used In controlling the mixing of alkaline solution and alkaline aerocolloidal preparation and conveying.
10. the boiler energy-saving environmental protecting device as described in any one of claim 6 to 9, it is characterised in that alkaline aerocolloidal conveying Medium is high-pressure hot wind, and the temperature range of hot blast is preferably between 200-350 DEG C.
CN201610362091.2A 2016-05-30 2016-05-30 A kind of boiler energy-saving environment protection method and device Pending CN106090967A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113308302A (en) * 2021-04-26 2021-08-27 杨天宇 System for extracting effective ingredients of materials

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101091868A (en) * 2007-04-13 2007-12-26 赵琪琤 Desulfurization method by ultrasonic atomization
CN101406803A (en) * 2008-10-28 2009-04-15 浙江大学 Ultrasonic wave denitration method for flue gas
CN102179161A (en) * 2011-05-04 2011-09-14 山东大学 Slurry for desulfuration and denitration of recirculating fluidized bed boiler
US8293200B2 (en) * 2009-12-17 2012-10-23 Alstom Technology Ltd Desulfurization of, and removal of carbon dioxide from, gas mixtures
CN105233656A (en) * 2015-11-02 2016-01-13 中电投远达环保工程有限公司 Process used for removing sulfur trioxide in flue gas of coal-fired power plant
CN205109379U (en) * 2015-11-17 2016-03-30 中电投远达环保工程有限公司 Sulfur trioxide's desorption system in coal fired power plant flue gas
CN206073113U (en) * 2016-05-30 2017-04-05 杨天宇 A kind of boiler energy-saving environmental protecting device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101091868A (en) * 2007-04-13 2007-12-26 赵琪琤 Desulfurization method by ultrasonic atomization
CN101406803A (en) * 2008-10-28 2009-04-15 浙江大学 Ultrasonic wave denitration method for flue gas
US8293200B2 (en) * 2009-12-17 2012-10-23 Alstom Technology Ltd Desulfurization of, and removal of carbon dioxide from, gas mixtures
CN102179161A (en) * 2011-05-04 2011-09-14 山东大学 Slurry for desulfuration and denitration of recirculating fluidized bed boiler
CN105233656A (en) * 2015-11-02 2016-01-13 中电投远达环保工程有限公司 Process used for removing sulfur trioxide in flue gas of coal-fired power plant
CN205109379U (en) * 2015-11-17 2016-03-30 中电投远达环保工程有限公司 Sulfur trioxide's desorption system in coal fired power plant flue gas
CN206073113U (en) * 2016-05-30 2017-04-05 杨天宇 A kind of boiler energy-saving environmental protecting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113308302A (en) * 2021-04-26 2021-08-27 杨天宇 System for extracting effective ingredients of materials

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