CN107281920A - A kind of flue gas desulfurization device - Google Patents

A kind of flue gas desulfurization device Download PDF

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Publication number
CN107281920A
CN107281920A CN201710438080.2A CN201710438080A CN107281920A CN 107281920 A CN107281920 A CN 107281920A CN 201710438080 A CN201710438080 A CN 201710438080A CN 107281920 A CN107281920 A CN 107281920A
Authority
CN
China
Prior art keywords
flue gas
cyclone separator
scrubbing tower
naoh
pipeline
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
CN201710438080.2A
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Chinese (zh)
Inventor
张利
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.)
Taicang Yunquan Chemical Anticorrosive Equipment Co Ltd
Original Assignee
Taicang Yunquan Chemical Anticorrosive Equipment Co Ltd
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 Taicang Yunquan Chemical Anticorrosive Equipment Co Ltd filed Critical Taicang Yunquan Chemical Anticorrosive Equipment Co Ltd
Priority to CN201710438080.2A priority Critical patent/CN107281920A/en
Publication of CN107281920A publication Critical patent/CN107281920A/en
Pending legal-status Critical Current

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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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/50Sulfur oxides
    • B01D53/501Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B01D53/502Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
    • 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
    • B01D50/20Combinations of devices covered by groups B01D45/00 and B01D46/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/06Arrangements of devices for treating smoke or fumes of coolers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/30Alkali metal compounds
    • B01D2251/304Alkali metal compounds of sodium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/60Inorganic bases or salts
    • B01D2251/604Hydroxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

Abstract

The invention discloses a kind of flue gas desulfurization device, including:Scrubbing tower, cyclone separator, wherein scrubbing tower uses cylinder form, smoke air inlet is provided with the top of scrubbing tower, in wash tower bottoms there is provided flue gas gas outlet, and flue gas gas outlet is connected with cyclone separator, flue gas access is connected on smoke air inlet, dust separation net is provided with flue gas access, big solid powder particle is intercepted by dust separation net, a kind of flue gas desulfurization device of the invention, structure design is compact, desulfuration efficiency can be more than 90%, and investment cost is low.

Description

A kind of flue gas desulfurization device
Technical field
The present invention relates to anti-corrosion technical field of environment protection equipment, more particularly to a kind of flue gas desulfurization device.
Background technology
With China's expanding economy and the progress of society, environmental issue is increasingly serious, and present acid rain problem is that country is anti- The major issue controlled, the main component of acid rain is sulfur dioxide, and in order to reduce the discharge of sulfur dioxide, country has promulgated desulfurization Hard and fast rule, flue gas desulfurization has been related to many parameter designings and technology Calculation, engineering management and installation, also related to very Many equipment, such as absorption tower, pump, blower fan, flue gas heat-exchange unit, electric valve control system etc., the discharge of sulfur dioxide is reduced, at present Mainly based on Limestone-gypsum Wet Flue Gas Desulfurization Process technique, substantial amounts of lime stone is added in absorption tower and carrys out sulfur dioxide absorption, Calcium sulfite, the calcium sulfate generated after sulfur dioxide absorption, reaches the purpose for removing sulfur dioxide, using 30% Ca(OH)2, In operation, easy fouling so that the spray nozzle clogging of processing, and alkali charge is high, and the sludge quantity of generation is big, floor space Greatly, water consumption is big, meanwhile, dedusting need of work installs other pocket type or electric cleaner, so that equipment investment is big, is This can realize high-efficiency desulfurization the invention provides a kind of flue gas desulfurization device, and substitute calcium salt using sodium salt, can be effective Sludge yield is reduced, and smoke desulfurization efficiency is high.
The content of the invention
The present invention solves the technical problem of a kind of flue gas desulfurization device is provided, dioxy in flue gas can be effectively realized Change the absorption of sulphur, realize air qualified discharge.
A kind of described flue gas desulfurization device, including:Scrubbing tower, wherein cyclone separator, scrubbing tower use cylindrical Formula, scrubbing tower is made using PP plate materials, smoke air inlet is provided with the top of scrubbing tower, in wash tower bottoms there is provided flue gas Gas outlet, and flue gas gas outlet is connected with cyclone separator.
Flue gas access is connected on smoke air inlet, dust separation net is provided with flue gas access, it is net by dedusting Change net to intercept big solid powder particle.
Flue gas gas outlet enters cyclone separator, and cyclone separator lower end is connected to blower motor, passes through blower motor Power is provided for cyclone separator, also, NAOH storage tanks are provided between blower motor and cyclone separator, passes through shower Road causes NAOH storage tanks to be connected with scrubbing tower.
A kind of optimal technical scheme, described blower motor uses fluoroplastics housing, and water resistance is excellent.
Chilling device pipeline is set gradually inside scrubbing tower, pre-washing device pipeline Venturi scrubbing installs pipes, It is NAOH liquid inside above-mentioned pipeline, wherein, chiller is provided with chilling device pipeline, by chiller so that flue Temperature is reduced, and is provided with mouth spray in pre-washing device pipeline so that the sulfur dioxide in flue gas is contacted with water, generates sulfurous Acid, SO2+H2O->H2SO3, NAOH desulphurization stage reason with to be alkaline matter with sulfur dioxide be dissolved in water generates sulfurous acid solution and enter Row acid-base neutralization reaction, NA2SO3 and H2SO3 further reacts generation NAHSO3, NAHSO3 and accelerates generation sub- with NAOH reactions again Sodium sulphate;The sodium sulfite of generation is recycled as absorbent, untapped after peroxidating, is used as harmless sodium sulphate water Solution discharge, NA2SO3+H2SO3=NAHSO3, NAHSO3+NAOH=2NA2SO3+2H2O, NA2SO3+1/2O2=NA2SO4.
10-20 washing unit is provided with wherein on Venturi scrubber pipeline, venturi aditus laryngis sets rectangular configuration, made The absorbing liquid atomization of aditus laryngis, which must be entered, turns into superfine small mist particles, so that producing huge gas liquid contact compares surface Product so that the pending composition in waste gas is efficiently quickly transferred in liquid, promotes the absorption of the sulfur dioxide in flue gas.
Connection is provided with cisten mechanism in the middle part of cyclone separator, and water tank is connected to the fresh water tank of supplement by pipeline, made Water circulation must be realized, air outlet slit is provided with the top of cyclone separator, the flue gas after processing is discharged by air outlet slit, reached Safety dumping.
Also, the air outlet slit at the top of cyclone separator is provided with as rainhat and air detecting device, it is ensured that air The safety of discharge.
In chilling device pipeline, pre-washing device pipeline Venturi scrubbing install pipes it is upper connection be provided with gravitation motor, The filter by gravitation motor connection, the sodium salt liquid that the liquid of desulfurization is generated enters filter, enters in filter Row reaction filtering.
Filter is connected to dewaterer, and dewaterer transports outward the sludge of generation, in order to control the desulfuration efficiency of flue gas desulfurization With the precision of monitoring desulfurization, PH meter A are provided with cyclone separator lower end, PH meter B are provided with the filter, A is counted by PH The safe operation that B ensures desulfurizer is counted with PH.
PH counts A and PH meters B includes glass shell respectively, is provided with glass marble in glass shell one end, is filled out in glass marble The electrolyte to be measured has been filled, internal reference electrode, reference electrode dimension are provided with the centre position of glass shell inner space A constant current potential is held, the controls for measuring various deviation current potentials are used as.
A kind of optimal technical scheme, described reference electrode is used as reference electrode using silver-silver oxide electrode.
The beneficial effects of the invention are as follows:A kind of flue gas desulfurization device of the present invention, structure design is compact, and desulfuration efficiency can be More than 90%, the discharge of sulfur dioxide is reduce further, and invest low with expense, it is adapted to the row of industry-by-industry enterprise of China Exhaust-gas treatment, protects atmospheric environment after treatment, improves environmental quality.
Brief description of the drawings
Fig. 1 is a kind of structural representation of flue gas desulfurization device of the invention;
The mark of each part is as follows in accompanying drawing:
1 is flue gas access, and 101 be dust separation net;
2 be scrubbing tower, and 201 be chilling device pipeline, and 202 be pre-washing device pipeline, and 203 install pipes for Venturi scrubbing, 204 be chiller;
3 be cyclone separator, and 301 be rainhat, and 302 be air detecting device;
4 is supplement fresh water tank, and 5 be NAOH storage tanks, and 6 be gravitation motor, and 7 be filter,
8 be dewaterer, and 901 be that PH counts A, and 902 be that PH counts B, and 10 be blower motor.
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention includes:
A kind of described flue gas desulfurization device, including:Scrubbing tower, wherein cyclone separator, scrubbing tower use cylinder form, wash Wash tower to make using PP plate materials, smoke air inlet is provided with the top of scrubbing tower, in wash tower bottoms there is provided flue gas outlet Mouthful, and flue gas gas outlet is connected with cyclone separator.
Flue gas access is connected on smoke air inlet, dust separation net is provided with flue gas access, it is net by dedusting Change net to intercept big solid powder particle.
Flue gas gas outlet enters cyclone separator, and cyclone separator lower end is connected to blower motor, passes through blower motor Power is provided for cyclone separator, also, NAOH storage tanks are provided between blower motor and cyclone separator, passes through shower Road causes NAOH storage tanks to be connected with scrubbing tower.
A kind of optimal technical scheme, described blower motor uses fluoroplastics housing, and water resistance is excellent.
Chilling device pipeline is set gradually inside scrubbing tower, pre-washing device pipeline Venturi scrubbing installs pipes, It is NAOH liquid inside above-mentioned pipeline, wherein, chiller is provided with chilling device pipeline, by chiller so that flue Temperature is reduced, and is provided with mouth spray in pre-washing device pipeline so that the sulfur dioxide in flue gas is contacted with water, generates sulfurous Acid, SO2+H2O->H2SO3, NAOH desulphurization stage reason with to be alkaline matter with sulfur dioxide be dissolved in water generates sulfurous acid solution and enter Row acid-base neutralization reaction, NA2SO3 and H2SO3 further reacts generation NAHSO3, NAHSO3 and accelerates generation sub- with NAOH reactions again Sodium sulphate;The sodium sulfite of generation is recycled as absorbent, untapped after peroxidating, is used as harmless sodium sulphate water Solution discharge, NA2SO3+H2SO3=NAHSO3, NAHSO3+NAOH=2NA2SO3+2H2O, NA2SO3+1/2O2=NA2SO4.
10-20 washing unit is provided with wherein on Venturi scrubber pipeline, venturi aditus laryngis sets rectangular configuration, made The absorbing liquid atomization of aditus laryngis, which must be entered, turns into superfine small mist particles, so that producing huge gas liquid contact compares surface Product so that the pending composition in waste gas is efficiently quickly transferred in liquid, promotes the absorption of the sulfur dioxide in flue gas.
Connection is provided with cisten mechanism in the middle part of cyclone separator, and water tank is connected to the fresh water tank of supplement by pipeline, made Water circulation must be realized, air outlet slit is provided with the top of cyclone separator, the flue gas after processing is discharged by air outlet slit, reached Safety dumping.
Also, the air outlet slit at the top of cyclone separator is provided with as rainhat and air detecting device, it is ensured that air The safety of discharge.
In chilling device pipeline, pre-washing device pipeline Venturi scrubbing install pipes it is upper connection be provided with gravitation motor, The filter by gravitation motor connection, the sodium salt liquid that the liquid of desulfurization is generated enters filter, enters in filter Row reaction filtering.
Filter is connected to dewaterer, and dewaterer transports outward the sludge of generation, in order to control the desulfuration efficiency of flue gas desulfurization With the precision of monitoring desulfurization, PH meter A are provided with cyclone separator lower end, PH meter B are provided with the filter, A is counted by PH The safe operation that B ensures desulfurizer is counted with PH.
PH counts A and PH meters B includes glass shell respectively, is provided with glass marble in glass shell one end, is filled out in glass marble The electrolyte to be measured has been filled, internal reference electrode, reference electrode dimension are provided with the centre position of glass shell inner space A constant current potential is held, the controls for measuring various deviation current potentials are used as.
A kind of optimal technical scheme, described reference electrode is used as reference electrode using silver-silver oxide electrode.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims (3)

1. a kind of flue gas desulfurization device, it is characterised in that including:Scrubbing tower, wherein cyclone separator, scrubbing tower use cylinder Form, scrubbing tower is made using PP plate materials, smoke air inlet is provided with the top of scrubbing tower, in wash tower bottoms there is provided cigarette Gas gas outlet, and flue gas gas outlet is connected with cyclone separator, and flue gas access is connected on smoke air inlet, is entered in flue gas Dust separation net is provided with road, big solid powder particle is intercepted by dust separation net, flue gas gas outlet enters rotation Wind separator, cyclone separator lower end is connected to blower motor, and power is provided for cyclone separator by blower motor, also, NAOH storage tanks are provided between blower motor and cyclone separator, by spray piping so that NAOH storage tanks connect with scrubbing tower Connect, chilling device pipeline has been set gradually inside scrubbing tower, pre-washing device pipeline Venturi scrubbing installs pipes, above-mentioned pipe It is NAOH liquid inside road, wherein, chiller is provided with chilling device pipeline, by chiller so that flue temperature drops It is low, it is provided with mouth spray in pre-washing device pipeline so that the sulfur dioxide in flue gas is contacted with water, generates sulfurous acid, SO2+ H2O->H2SO3, NAOH desulphurization stage reason are with being that alkaline matter is dissolved in water generation sulfurous acid solution progress soda acid with sulfur dioxide And reaction, NA2SO3 and H2SO3, which further reacts generation NAHSO3, NAHSO3 and reacted again with NAOH, accelerates generation sodium sulfite; The sodium sulfite of generation is recycled as absorbent, untapped after peroxidating, is arranged as harmless aqueous sodium persulfate solution Put, NA2SO3+H2SO3=NAHSO3, NAHSO3+NAOH=2NA2SO3+2H2O, NA2SO3+1/2O2=NA2SO4, its Chinese mound In 10-20 washing unit is provided with washer pipeline, venturi aditus laryngis setting rectangular configuration connects in the middle part of cyclone separator Connect and be provided with cisten mechanism, water tank is connected to the fresh water tank of supplement by pipeline so that water circulation is realized, on cyclone separator top Portion is provided with air outlet slit, and the flue gas after processing is discharged by air outlet slit, and the air outlet slit at the top of cyclone separator is set It is rainhat and air detecting device, in chilling device pipeline, pre-washing device pipeline Venturi scrubbing installs pipes upper company Connect and be provided with gravitation motor, the filter by gravitation motor connection, the sodium salt liquid that the liquid of desulfurization is generated was entered Filter, carries out reaction filtering in filter, and filter is connected to dewaterer, and dewaterer transports outward the sludge of generation, in order to control The desulfuration efficiency of tobacco curing desulfurization and the precision of monitoring desulfurization, PH meter A are provided with cyclone separator lower end, are set on the filter PH meter B have been put, A and PH is counted by PH and counts the safe operation that B ensures desulfurizer.
2. a kind of flue gas desulfurization device according to claim 1, it is characterised in that blower motor uses fluoroplastics housing.
3. a kind of flue gas desulfurization device according to claim 1, it is characterised in that PH counts A and PH meters B includes glass respectively Glass housing, glass marble is provided with glass shell one end, the electrolyte to be measured is filled with glass marble, in glass shell The centre position of inner space is provided with internal reference electrode, and reference electrode maintains a constant current potential, various inclined as measuring The control of ionization potential, reference electrode is used as reference electrode using silver-silver oxide electrode.
CN201710438080.2A 2017-06-12 2017-06-12 A kind of flue gas desulfurization device Pending CN107281920A (en)

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CN201710438080.2A CN107281920A (en) 2017-06-12 2017-06-12 A kind of flue gas desulfurization device

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CN201710438080.2A CN107281920A (en) 2017-06-12 2017-06-12 A kind of flue gas desulfurization device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109364670A (en) * 2018-11-28 2019-02-22 刘同� A kind of equipment for treating industrial waste gas

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102049167A (en) * 2009-10-27 2011-05-11 中国石油化工股份有限公司 High-SO2 concentration pressure smoke desulfuration method and device
US20140248201A1 (en) * 2011-09-30 2014-09-04 Alfa Laval Corporate Ab Scrubber system and method
CN105013311A (en) * 2015-07-28 2015-11-04 青岛京润石化工程有限公司 Flue gas desulfurization dust and mist removal method
CN204853524U (en) * 2015-06-15 2015-12-09 吕江良 Desulfurizing dust remover

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102049167A (en) * 2009-10-27 2011-05-11 中国石油化工股份有限公司 High-SO2 concentration pressure smoke desulfuration method and device
US20140248201A1 (en) * 2011-09-30 2014-09-04 Alfa Laval Corporate Ab Scrubber system and method
CN204853524U (en) * 2015-06-15 2015-12-09 吕江良 Desulfurizing dust remover
CN105013311A (en) * 2015-07-28 2015-11-04 青岛京润石化工程有限公司 Flue gas desulfurization dust and mist removal method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109364670A (en) * 2018-11-28 2019-02-22 刘同� A kind of equipment for treating industrial waste gas
CN109364670B (en) * 2018-11-28 2020-10-30 广东净境环保股份有限公司 Industrial waste gas treatment device

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Application publication date: 20171024