SK304690A3 - Process and device for wet purification of gases especially of flue gases - Google Patents
Process and device for wet purification of gases especially of flue gases Download PDFInfo
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- SK304690A3 SK304690A3 SK3046-90A SK304690A SK304690A3 SK 304690 A3 SK304690 A3 SK 304690A3 SK 304690 A SK304690 A SK 304690A SK 304690 A3 SK304690 A3 SK 304690A3
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- gas
- reaction space
- foam
- cleaning liquid
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/04—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour through foam
-
- 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
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Oblast technikyTechnical field
Vynález sa týka spôsobu Čistenia plynov, najmä dymových plynov, za mokra a zariadenie na realizovanie tohoto spôsobu.The present invention relates to a process for the wet scrubbing of gases, in particular flue gases, and to an apparatus for carrying out the process.
Doterajší stav technikyBACKGROUND OF THE INVENTION
Spôsob a zariadenia tohoto druhu sú známe z európskej patentovej prihlášky 86 109 070.8 . Pri tomto spôsobe sa čistený plyn zavádza pod tlakom do čistiacej kvapaliny vytvárajúcej penu. Turbulentným zariadením v tvare prstenca so spodnou stranou, ktorá je opatrená väčším počtom rýh alebo vo forme zvislých zvlnených plechov dochádza k tvorbe peny, ktorej bublinky viažu na seba častice, ktoré sa majú z plynu, ktorý sa Čistí, odstrániť. Nedostatkom tohto spôsobu a zodpovedajúceho zariadenia Je to, že sa čistený plyn musí vtlačovať pod povrch čistiacej kvapaliny, aby sa mohlo dosiahnúť Intenzívneho styku s čistiacou kvapalinou a tvorby peny. Nedostatkom Je aj to, že sa týmto pracovným spôsobom dá s ohľadom ako na časovo tak aj plošne obmedzený styk plynu s čistiacou kvapalinou dosiahnúť len omedzená tvorba peny.A method and apparatus of this kind are known from European patent application 86 109 070.8. In this method, the purified gas is introduced under pressure into a foam-forming cleaning liquid. A turbulent, ring-shaped device with a underside, which is provided with a plurality of grooves or in the form of vertical corrugated sheets, generates a foam whose bubbles bind to each other the particles to be removed from the gas to be cleaned. A drawback of this method and of the corresponding device is that the cleaned gas must be pressed under the surface of the scrubbing liquid in order to achieve intensive contact with the scrubbing liquid and foam formation. It is also a drawback that only a limited formation of foam can be achieved in this way with regard to both the time and surface contact of the gas with the cleaning liquid.
Vynález si preto kladie za základnú úlohu zlepšiť spôsob a zariadenie vyššie uvedeného druhu s ohľadom na potrebný náklad na energiu a tvorbu peny.It is therefore an object of the present invention to improve the method and apparatus of the aforementioned type with regard to the energy and foam costs required.
Táto úloha Je podľa vynálezu vyriešená znakmi uvedenými vo význakovej časti bodov 1 až 7 .According to the invention, this object is achieved by the features set out in the characterizing part of points 1 to 7.
Pri navrhnutom druhu čistenia sa Intenzívny styk čisteného plynu s Čistiacou kvapalinou dosiahne tým, že v dôsledku sa meniacich prierezov prestupov vznikne v reakčnom priestore pulzujúce prúdenie, takže dôjde na vznik turbulencie, ktorá sa ešte priaznivo ovplyvní pohybujúcim sa nerovnomerným povrchom obmedzovacej steny reakčného priestoru, zmáčané čistiacou kvapalinou. Tým dochádza obzvlášť k veľkému filtračnému účinku,lebo vznikajúce bublinky tvoria veľkú filtračnú plochu. Pri tom nedochádza len na tvorbu Jednotlivých bubliniek, skôr tieto môžu v sebe uzavierať opäť viac menších bubliniek.In the proposed type of purification, intensive contact of the gas to be cleaned with the cleaning liquid is achieved by the fact that the varying cross-sections of the transfer space result in a pulsating flow in the reaction space so that turbulence occurs. with cleaning liquid. This results in a particularly large filtration effect, since the bubbles formed form a large filtration surface. In doing so, it is not only the formation of individual bubbles, but rather that they can enclose again more smaller bubbles.
Povrch obmedzovacej steny má s výhodou otvory, takže sa tvorí dalši reakčný priestor. V tomto sekundárnom reakčnom priestore panujú podobné pomery ako v primárnom reakčnom priestore.The surface of the limiting wall preferably has openings so that an additional reaction space is formed. There are similar ratios in this secondary reaction space as in the primary reaction space.
Výhodne konštruované zariadenie na uskutočňovanie čistiaceho spôsobu má dva voľnobežné valce obmedzujúce bočné, primárny reakčný priestor v smere prúdenia, ktoré sú poháňané prúdom plynu v opačnom zmysle. Nepravidelný povrch týchto valcov tvoria lopatkovité,v smere dovnútra vyčnievajúce výstupky, ktoré sú tlačené z povrchu valcov smerom dovnútra, takže tým súčasne vzniknú otvory, pomocou ktorých Je vytvorený sekundárny priestor. Sekundárny priestor Je v smere prúdenia ohraničený bočné Jednou stojacou vratnou trubkou, ktorá Je 'osovo rovnobežne usporiadaná v zodpovedajúcom voľnobežnom valci. Na každej vratnej trubke Je usporiadaná klapka na vyrovnávanie tlaku, ktorá môže dosadať na povrch čitlačeJ kvapaliny. Povrch Čistiacej kvapaliny ohraničuje prúd plynu v smere prúdenia, takže časti primárneho a sekundárneho prúdu plynu sú pohltené čistiacou kvapalinou. · Ďalšia časť týchto prúdov sa dostáva cez klapku na vyrovnávanie tlaku a otvormi valcov do čistiacej komory obklopujúcej valce. Z Čistiacej komory sa môže vytvorená pena odvádzať a rozkladať. Pritom vznikajúca kvapalina sa privádza späť do zbernej nádrže pre čistiacu kvapalinu a vyčistený plyn vystupuje. Kal, tvoriaci sa v zbernej nádrži pre čistiacu kvapalinu sa odvádza a môže sa sušiť pomocou nečisteného plynu, pokiaľ má tento plyn postačujúcu teplotu. Časť tohto kalu sa vracať späť na ďalšie čistenie do sekundárneho reakčného priestoru.Advantageously, the constructed apparatus for carrying out the purification method has two free rollers limiting the lateral, primary reaction space in the flow direction, which are driven by a gas flow in the opposite sense. The irregular surface of these rollers is formed by blade-like inwardly projecting projections which are pushed from the surface of the rollers inwardly, so that at the same time holes are formed through which the secondary space is created. The secondary space is bounded laterally by one standing return pipe, which is arranged axially parallel in the corresponding freewheel cylinder. A pressure-equalizing flap is provided on each return pipe and can rest on the surface of the liquid reader. The surface of the scrubbing liquid limits the gas flow in the flow direction so that portions of the primary and secondary gas streams are absorbed by the scrubbing liquid. A further portion of these streams passes through the pressure equalization flap and cylinder openings into the cleaning chamber surrounding the cylinders. The foam formed can be removed and decomposed from the cleaning chamber. The resulting liquid is fed back to the cleaning liquid collection tank and the cleaned gas exits. The sludge formed in the collecting tank for the cleaning liquid is drained and can be dried using uncleaned gas as long as the gas has a sufficient temperature. Part of this sludge is returned for further purification to the secondary reaction space.
ale môže tiež primárneho abut can also primary and
Prehľad obrázkov na výkresochBRIEF DESCRIPTION OF THE DRAWINGS
Vynález Je dalej vysvetlený pomocou príkladov znázornených na obr. 1 až 4 .The invention is further explained by the examples shown in FIG. 1 to 4.
Obr. 1 ukazuje schematické znázornenie zariadenia na čistenie plynu .Obr. 8 ukazuje schemické znázornenie čistiacej komory a v nej usporiadaného primárneho a sekundárneho reakčného priestoruFig. 1 shows a schematic representation of a gas scrubber. FIG. 8 shows a schematic representation of the purification chamber and the primary and secondary reaction compartments arranged therein.
Obr. 3 znázorňuje bokorys aFig. 3 shows a side view of a
Obr. 4 pohľad zhora, z ktorého Je patrné uloženie a kryt valcov z obr. 8 .Fig. 4 is a top view showing the bearing and cylinder cover of FIG. 8.
Príklady'uskutočnenia vynálezuEXAMPLES OF THE INVENTION
Zariadenie na čistenie plynu, znázornené na obr. 1, má čistiacu komoru 10, ktorá Je detailne znázornená na obr. 1 . Do čistiacej komory 10 sa privádza plyn, ktorý sa má čistili, cez vstupnú trubku 18 plynu. Tento plyn sa dostáva do primárneho reakčného priestoru 11a a sekundárneho reakčného priestoru 1lb .Oba priestory sú v smere prúdenia bočné ohraničené voľnobeinými valcamiThe gas purification device shown in FIG. 1 has a cleaning chamber 10, which is shown in detail in FIG. 1. The purge chamber 10 is fed with the gas to be cleaned through the gas inlet tube 18. This gas enters the primary reaction chamber 11a and the secondary reaction chamber 11b. Both spaces are laterally delimited in the direction of flow by free rollers.
15. ktoré sú poháňané privádzaným plynom v opačnom zmysle. Čistiaca komora 10 má dolu nádrž 15 s čistiacou kvapalinou, ktorá vytvára penu. Pena, ktorej tvorba bude pozdejšie detailne popísaná, sa vedie cez odvodnú trubku 16 pre odvádzanie peny k zariadeniu 83 pre jej rozklad , ktoré môže pozostávať napríklad z radiálneho dúchadlového zariadenia, ktoré Je poháňané motorom 88. Kvapalina vzniknutá rozkladom peny sa vedie do zbernej nádrže 18 čistiacej kvapaliny, zatiaľ čo sa vyčistený plyn odvádza výstupnou trubkou SS. Do zbernej nádrže 18 sa vedie tiež cez prietokovú trubku 17 z nádrže 15. čistiaca kvapalina. Kal, ktorý sa usadzuje v zbernej nádrži 18 sa vedie úplne alebo sčasti cez výstupnú trubku 80 a dalšiu výstupnú trubku 86 do zbernej nádrže 89 na kal. Ako Je znázornené, môže sa časť kalu vracať cez predkvapovú trubku 19 opäť do vtokovej trubky 12 na Plyn.15. which are driven by the gas supplied in the opposite sense. The cleaning chamber 10 has a tank 15 of cleaning fluid which forms a foam downwards. The foam, the formation of which will be described in detail later, is passed through the foam discharge pipe 16 to a blow-down device 83, which may consist, for example, of a radial blower device driven by a motor 88. of the cleaning liquid while the cleaned gas is discharged through the outlet pipe SS. The cleaning liquid 18 is also fed to the collecting tank 18 via a flow pipe 17 from the tank 15. The cleaning fluid is also conveyed to the collecting tank. The sludge deposited in the collecting tank 18 is fed wholly or partially through the outlet tube 80 and the other outlet tube 86 to the slurry collection tank 89. As shown, a portion of the sludge can be returned to the gas inlet pipe 12 via the pre-drip pipe 19.
Hnací motor 88 poháňa rovnako koleso 84 dúchadla, ktoré nasáva z konštrukčnej skupiny tepelných výneníkov 87 plyn, ktorý sa má čistiť. Konštrukčná skupina tepelných výmeníkov 27, skríň 30. v ktorej dolu stojí kruhovž. zberná nádrž 89 na kal. Nad ňou sa nachádza na rošte 38 dalšia zberná nádrž na kal. Obidve nádrže 82 sú vyhrievané čisteným plynom, prichádzajúcim od vykurovacieho kotla 34 a vstupujúcim do skrine 30, na sušenie kalu. Skriňa 30 môže dalej ' mať prídavné chladiace trubky 36 pre zásobovanie boileru 35. na teplú vodu.The drive motor 88 also drives the blower wheel 84, which sucks the gas to be cleaned from the heat exchanger assembly 87. A heat exchanger assembly 27, a housing 30 in which a ring stands downwardly. collecting tank 89 for sludge Above it is on the grate 38 another sludge collection tank. Both tanks 82 are heated with clean gas coming from the boiler 34 and entering the housing 30 to dry the sludge. The housing 30 may further have additional cooling tubes 36 for supplying the boiler 35 with hot water.
Náhradný tank Si, ktorý sa nachádza v čerpacej a regulačnej montážnej skupine 88. obsahujúcej zariadenie 83 pre rozklad peny, motor 88. dúchadlo 84 ako aj meracie zariadenie obsahuje čistiacu kvapalinu,ktorá sa privádza do Čistiaceho procesu, ked sa čistiaca kvapalina spotrebuje.The replacement tank Si, which is located in the pumping and regulating assembly 88, comprising the foam decomposition device 83, the engine 88, the blower 84, and the metering device, comprises a cleaning fluid that is fed to the cleaning process when the cleaning fluid is consumed.
Ako ukazuje obr. 8 dostáva sa čistený plyn cez vstupnú trubku 18 do primárneho a sekundárneho reakčného priestoru 1 la prípadne 11b . Tlakové stavy, stavy rýchlosti prúdenia a teplotné stavy, panujúce v reakčných priestoroch a na ne naväzujúce oblasti sú uvedené v nasledujúcej tabuľke:As shown in FIG. 8, the purified gas passes through the inlet tube 18 into the primary and secondary reaction compartments 11a and 11b, respectively. The pressure states, flow velocities and temperature states prevailing in the reaction spaces and the adjacent regions are shown in the following table:
Prierezy priestupuCross sections
Primárny reakčný priestor 11a Je pri predloženom príklade ohraničený bočné v smere prúdenia obidvomi valcami 15., ktoré sú poháňané prúdom plynu v opačnom zmysle. Valce 15 majú smerom dovnútra vyčnievajúce lopatkovité výstupky 59, pomocou ktorých vznikajú otvory 38. Cez tieto otvory sa môže dostať prúd plynu dovnútra do valcov 15, čím sa vytvorí sekundárny reakčný priestor llb. Reakčný priestor 1lb Je v smere prúdu bočné ohraničený vratnými trubkami 13, ktoré sú usporiadané vo valcoch 13 rovnobežne s ich osou. Každá vratná trubka 14 má kývne prikíbenú klapku 37 na vyrovnávanie tlaku, ktorá vyčnieva smerom dole a spolu s čistiacou kvapalinou utesňuje primárny reakčný priestor 1 la a sekundárny reakčný priestor llb. Pri prevádzke sa klapka 37 na vyrovnávanie tlaku tlakom plynu a vytvorenou penou vhodne nadvihuje nad povrch čistiacej kvapaliny.The primary reaction space 11a in the present example is delimited laterally in the flow direction by the two cylinders 15, which are driven by a gas flow in the opposite direction. The rollers 15 have inwardly projecting blade-like projections 59, through which openings 38 are formed. Through these openings, a gas flow can be introduced into the rollers 15, thereby creating a secondary reaction space 11b. The reaction space 11b is laterally delimited by the return pipes 13 which are arranged in the cylinders 13 parallel to their axis. Each return pipe 14 has a pressure-swinging pressure relief flap 37 that protrudes downwardly and, together with the cleaning fluid, seals the primary reaction chamber 11a and the secondary reaction chamber 11b. In operation, the pressure equalization flap 37 of the gas and the foam formed is conveniently raised above the surface of the cleaning liquid.
Obidva valce 13 sa ponorujú do čistiacej kvapaliny, takže ich povrch sa zmáča ako zvonku tak aj zvnútra stále čistiacou kvapalinou. Aj na vratných trubkách 14 sa nachádza čistiaca kvapalina. Týmto spôsobom prívodu čistiacej kvapaliny do reakčných priestorov dochádza k intenzívnemu styku čisteného plynu a čistiacej kvapaliny a veľkej tvorbe turbulencie, čím sa priaznivo ovplyvní tvorba peny. Častice viazané penou sa dostanú nielen do čistiacej komory 10 odkiaľ sú privádzané do zariadenia na rozklad peny, ale aj bezprostredne do čistiacej kvapaliny v nádrži 15 a odtiaľ do zbernej nádrže 18.The two rollers 13 are immersed in the cleaning liquid, so that their surface is wetted both outside and inside with the cleaning liquid. A cleaning liquid is also present on the return pipes 14. In this way, the supply of scrubbing liquid to the reaction spaces leads to intensive contact of the cleaned gas and scrubbing liquid and a large amount of turbulence, thereby favorably affecting foam formation. The foam bound particles reach not only into the cleaning chamber 10 from where they are fed to the foam decomposition device, but also directly to the cleaning liquid in the tank 15 and from there to the collection tank 18.
Obr. 3 a 4 ukazujú, že valce 13, ktoré sú uložené v podstavci 40 sú sčasti obklopené krytom 41. ktorý uzatvára primárny reakčný priestor 1 la a sekundárny reakčný priestor 1lb.Fig. Figures 3 and 4 show that the rollers 13 housed in the pedestal 40 are partially surrounded by a cover 41 which encloses the primary reaction space 11a and the secondary reaction space 11b.
Claims (17)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3920321A DE3920321A1 (en) | 1989-06-21 | 1989-06-21 | METHOD AND DEVICE FOR WET PURIFYING GASES, ESPECIALLY SMOKE GASES |
Publications (2)
Publication Number | Publication Date |
---|---|
SK279330B6 SK279330B6 (en) | 1998-10-07 |
SK304690A3 true SK304690A3 (en) | 1998-10-07 |
Family
ID=6383249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SK3046-90A SK304690A3 (en) | 1989-06-21 | 1990-06-19 | Process and device for wet purification of gases especially of flue gases |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0422337B1 (en) |
AT (1) | ATE102844T1 (en) |
DD (1) | DD300074A5 (en) |
DE (1) | DE3920321A1 (en) |
SK (1) | SK304690A3 (en) |
YU (1) | YU47359B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE159665T1 (en) * | 1991-07-04 | 1997-11-15 | Hermann Berthold | DEVICE FOR CLEANING GASES, IN PARTICULAR SMOKE GASES |
DE9108270U1 (en) | 1991-07-04 | 1991-11-28 | Berthold, Hermann, 8510 Fürth | Device for cleaning gases, in particular flue gases |
DE20122515U1 (en) | 2001-07-26 | 2005-12-22 | Berthold, Hermann | Car wash treatment process maintains closed circuit return of air bubbles and ionised radials |
DE102015202150A1 (en) | 2015-02-06 | 2016-08-11 | Inno-Gas GmbH | Device for cleaning gases laden with foreign particles, in particular flue gases |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB850944A (en) * | 1957-11-27 | 1960-10-12 | Cecil Henry Taylor | Improvements in or relating to gas purifiers |
DE2205600A1 (en) * | 1972-02-07 | 1973-08-16 | Ohlmann Hans Armin | Domestic air purifier - being rotating vaned impeller through which air is drawn and which dips into a scrubbing agent |
JPS55109430A (en) * | 1979-02-16 | 1980-08-22 | Shigeru Kataoka | Washing apparatus |
US4472324A (en) * | 1983-01-13 | 1984-09-18 | John Hawryluk | Gas purifier unit |
DE3336840A1 (en) * | 1983-10-11 | 1985-04-25 | Heinz Prof. Dr.-Ing. 1000 Berlin Brauer | Machine for mass transfer and for the separation of dust and droplets |
PL143692B1 (en) * | 1985-01-23 | 1988-03-31 | Politechnika Lodzka | Apparatus for purifying gases by wet process |
DE3523731A1 (en) * | 1985-07-03 | 1987-01-15 | Otmato Ag | DEVICE FOR WET PURIFYING SMOKE GAS |
-
1989
- 1989-06-21 DE DE3920321A patent/DE3920321A1/en active Granted
-
1990
- 1990-06-19 EP EP90111586A patent/EP0422337B1/en not_active Expired - Lifetime
- 1990-06-19 SK SK3046-90A patent/SK304690A3/en unknown
- 1990-06-19 AT AT90111586T patent/ATE102844T1/en not_active IP Right Cessation
- 1990-06-20 YU YU120890A patent/YU47359B/en unknown
- 1990-06-21 DD DD341934A patent/DD300074A5/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP0422337A2 (en) | 1991-04-17 |
DE3920321A1 (en) | 1991-01-24 |
SK279330B6 (en) | 1998-10-07 |
YU47359B (en) | 1995-01-31 |
YU120890A (en) | 1992-12-21 |
DE3920321C2 (en) | 1991-08-29 |
ATE102844T1 (en) | 1994-04-15 |
EP0422337A3 (en) | 1991-04-24 |
EP0422337B1 (en) | 1994-03-16 |
DD300074A5 (en) | 1992-05-21 |
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