SK279330B6 - 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
- Publication number
- SK279330B6 SK279330B6 SK3046-90A SK304690A SK279330B6 SK 279330 B6 SK279330 B6 SK 279330B6 SK 304690 A SK304690 A SK 304690A SK 279330 B6 SK279330 B6 SK 279330B6
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- reaction space
- gas
- foam
- primary reaction
- 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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- Engineering & Computer Science (AREA)
- 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
Vynález sa týka spôsobu čistenia plynov, najmä dymových plynov, za mokra a zariadenie na realizovanie tohto spôsobu.BACKGROUND OF THE INVENTION The present invention relates to a process for wet cleaning of gases, in particular flue gases, and to an apparatus for carrying out the process.
Doterajší stav technikyBACKGROUND OF THE INVENTION
Spôsob a zariadenia tohto druhu sú známe z európskej patentovej prihlášky 86 109 070.2 . 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 dosiahnuť intenzívneho styku s čistiacou kvapalinou a tvorby peny. Nedostatkom je aj to, že sa týmto pracovným spôsobom dá vzhľadom tak na časovo, ako aj plošne obmedzený styk plynu s čistiacou kvapalinou dosiahnuť len obmedzená tvorba peny.A method and apparatus of this kind are known from European patent application 86 109 070.2. 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. A disadvantage is also that only limited foam formation can be achieved in this process due to both the time and area-limited contact of the gas with the cleaning liquid.
Vynález si preto kladie za základnú úlohu zlepšiť spôsob a zariadenie uvedeného druhu vzhľadom na potrebný náklad na energiu a tvorbu peny.It is therefore an essential object of the present invention to improve the method and apparatus of the above-mentioned type with regard to the energy and foam costs required.
Táto úloha je podľa vynálezu vyriešená znakmi uvedenými v nárokovej časti bodov 1 až 7.According to the invention, this object is achieved by the features set forth in the claims section 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.With 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 produce a pulsating flow in the reaction space, so that turbulence is created, which is favorably affected by the uneven surface. 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 several smaller bubbles.
Povrch obmedzovacej steny má výhodne otvory, takže sa tvorí ďalší 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 rúrkou, ktorá je osovo rovnobežne usporiadaná v zodpovedajúcom voľnobežnom valci. Na každej vratnej rúrke je usporiadaná klapka na vyrovnávanie tlaku, ktorá môže dosadať na povrch čistiacej 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 na čistiacu kvapalinu a vyčistený plyn vystupuje. Kal, tvoriaci sa v zbernej nádrži na čistiacu kvapalinu sa odvádza a môže sa sušiť pomocou nečisteného plynu, pokiaľ má tento plyn postačujúcu teplotu. Časť tohto kalu sa ale môže tiež vracať späť na ďalšie čistenie do primárneho a 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 direction. The irregular surface of these rollers is formed by blade-like inwardly projecting projections which are pushed inwardly from the surface of the rollers so that at the same time holes are formed through which the secondary space is created. The secondary space is delimited in the direction of flow by a lateral one standing return tube, which is arranged axially parallel in the corresponding idling cylinder. A pressure-equalizing flap is provided on each return pipe and can rest on the surface of the cleaning liquid. 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 discharged and decomposed from the cleaning chamber. The resulting liquid is returned to the cleaning liquid collection tank and the cleaned gas exits. The sludge formed in the cleaning liquid collecting tank is drained and can be dried with uncleaned gas as long as the gas has a sufficient temperature. However, part of this sludge may also be returned for further purification to the primary and secondary reaction compartments.
Prehľad obrázkov na výkresochBRIEF DESCRIPTION OF THE DRAWINGS
Vynález je ďalej 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.Fig. 1 shows a schematic representation of a gas cleaning device.
Obr. 2 ukazuje schematické znázornenie čistiacej komory a v nej usporiadaného primárneho a sekundárneho reakčného priestoru.Fig. 2 shows a schematic representation of the purification chamber and the primary and secondary reaction compartments arranged therein.
Obr. 3 znázorňuje bokorys a obr. 4 pohľad zhora, z ktorého je zrejmé uloženie a kryt valcov z obr. 2.Fig. 3 shows a side view and FIG. 4 is a plan view showing the bearing and cylinder cover of FIG. Second
Príklady uskutočnenia vynálezuDETAILED DESCRIPTION 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 čistiť, cez vstupnú rúrku 12 plynu. Tento plyn sa dostáva do primárneho reakčného priestoru 11a a sekundárneho reakčného priestoru 11b.Oba priestory sú v smere prúdenia bočné ohraničené voľnobežnými valcami 13, 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 detailne popísaná, sa vedie cez odvodnú rúrku 16 pre odvádzanie peny k zariadeniu 23 pre jej rozklad, ktoré môže pozostávať napríklad z radiálneho dúchadlového zariadenia, ktoré je poháňané motorom 22. Kvapalina vzniknutá rozkladom peny sa vedie do zbernej nádrže 18 čistiacej kvapaliny, zatiaľ čo sa vyčistený plyn odvádza výstupnou rúrkou 25. Do zbernej nádrže 18 sa vedie tiež cez prietokovú rúrku 17 z nádrže 15 čistiaca kvapalina. Kal, ktorý’ sa usadzuje v zbernej nádrži 18 sa vedie úplne alebo sčasti cez výstupnú rúrku 20 a ďalšiu výstupnú rúrku 26 do zbernej nádrže 29 na kal. Ako je znázornené, môže sa časť kalu vracať cez predkvapovú rúrku 19 opäť do vtokovej rúrky 12 na plyn.The gas purification device shown in FIG. 1, has a cleaning chamber 10, which is shown in detail in FIG. 1. The gas to be cleaned is supplied to the purge chamber 10 via a gas inlet tube 12. This gas enters the primary reaction space 11a and the secondary reaction space 11b. Both spaces are laterally limited in the direction of flow by the idling cylinders 13, which are driven by the supplied gas in the opposite direction. 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, is passed through a foam discharge pipe 16 to a decomposition device 23, which may consist, for example, of a radial blower device driven by a motor 22. The liquid formed by the decomposition of the foam is fed to a collecting tank 18 The cleaned gas is also discharged into the collecting tank 18 through the flow pipe 17 from the tank 15 to the cleaning liquid. The sludge deposited in the collecting tank 18 is fed wholly or partially through the outlet tube 20 and the other outlet tube 26 to the slurry collection tank 29. As shown, a portion of the sludge can be returned via the pre-drip tube 19 to the gas inlet tube 12 again.
Hnací motor 22 poháňa rovnako koleso 24 dúchadla, ktoré nasáva z konštrukčnej skupiny tepelných výmenníkov 27 plyn, ktorý sa má čistiť. Konštrukčná skupina tepelných výmenníkov 27, skríň 30, v ktorej dolu stojí kruhová zberná nádrž 29 na kal. Nad ňou sa nachádza na rošte 32 ďalšia zberná nádrž na kal. Obidve nádrže 29 sú vyhrievané čisteným plynom, prichádzajúcim od vykurovacieho kotla 34 a vstupujúcim do skrine 30, na sušenie kalu. Skriňa 30 môže ďalej mať prídavné chladiace rúrky 36 na zásobovanie bojlera 35 na teplú vodu.The drive motor 22 also drives the blower wheel 24, which sucks the gas to be cleaned from the heat exchanger assembly 27. The heat exchanger assembly 27, housing 30, in which a circular sludge collecting tank 29 stands down. Above it is on the grate 32 another sludge collection tank. Both tanks 29 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 hot water boiler 35.
Náhradný tank 31, ktorý sa nachádza v čerpacej a regulačnej montážnej skupine 28, obsahujúcej zariadenie 23 na rozklad peny, motor 22, dúchadlo 24, ako aj meracie zariadenie obsahuje čistiacu kvapalinu, ktorá sa privádza do čistiaceho procesu, keď sa čistiaca kvapalina spotrebuje.The replacement tank 31, which is located in the pumping and regulating assembly 28, comprising the foam decomposition device 23, the motor 22, the blower 24, as well as the metering device, comprises a cleaning fluid that is fed to the cleaning process when the cleaning fluid is consumed.
Ako ukazuje obr. 2 dostáva sa čistený plyn cez vstupnú rúrku 12 do primárneho a sekundárneho reakčného priestoru 11a prípadne 11b. Tlakové stavy, stavy rýchlosti prúde2 nia a teplotné stavy, panujúce v reakčných priestoroch a naAs shown in FIG. 2, the purified gas is passed through the inlet pipe 12 to the primary and secondary reaction compartments 11a and 11b, respectively. Pressure states, flow velocities and temperature states prevailing in reaction spaces and
Primárny reakčný priestor 11a je pri predloženom príklade ohraničený bočné v smere prúdenia obidvomi valcami 13, ktoré sú poháňané prúdom plynu v opačnom zmysle. Valce 13 majú smerom dovnútra vyčnievajúce lopatkovité výstupky 39, pomocou ktorých vznikajú otvory 38. Cez tieto otvory sa môže dostať prúd plynu dovnútra do valcov 13, čím sa vytvorí sekundárny reakčný priestor 11b. Reakčný priestor 11b je v smere prúdu bočné ohraničený vratnými rúrkami 12, ktoré sú usporiadané vo valcoch 13 rovnobežne s ich osou. Každá vratná rúrka 14 má kývne prikíbenú klapku 37 na vyrovnávanie tlaku, ktorá vyčnieva smerom dole a spolu s čistiacou kvapalinou utesňuje primárny reakčný priestor 11a a sekundárny reakčný priestor 11b. 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 13, which are driven by the gas flow in the opposite direction. The rollers 13 have inwardly projecting blade-like projections 39, through which openings 38 are formed. Through these openings, a gas stream can be introduced into the rollers 13, thereby creating a secondary reaction space 11b. The reaction space 11b is laterally delimited by the return pipes 12, which are arranged in the cylinders 13 parallel to their axis. Each return tube 14 has a pressure-swinging pressure relief flap 37 that projects downwardly and seals the primary reaction chamber 11a and the secondary reaction chamber 11b together with the cleaning fluid. 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 tak zvonku ako aj zvnútra stále čistiacou kvapalinou. Aj na vratných rúrkach 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.Both rollers 13 are immersed in the cleaning liquid, so that their surface is wetted both outside and inside with the cleaning liquid. Also on the return pipes 14 is a cleaning liquid. 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 11a a sekundárny reakčný priestor 11b.Fig. Figures 3 and 4 show that the rollers 13 housed in the pedestal 40 are partially surrounded by a cover 41 that encloses the primary reaction space 11a and the secondary reaction space 11b.
Claims (22)
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 true SK279330B6 (en) | 1998-10-07 |
SK304690A3 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 |
---|---|---|---|---|
EP0549756B1 (en) * | 1991-07-04 | 1997-10-29 | Hermann Berthold | Gas scrubbing device, in particular for flue gas |
DE9108270U1 (en) | 1991-07-04 | 1991-11-28 | Berthold, Hermann, 8510 Fuerth, De | |
DE10136084B4 (en) | 2001-07-26 | 2010-04-29 | Hermann Berthold | Process and installation for treating liquids, in particular for cleaning contaminated water |
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 SK SK3046-90A patent/SK304690A3/en unknown
- 1990-06-19 AT AT90111586T patent/ATE102844T1/en not_active IP Right Cessation
- 1990-06-19 EP EP90111586A patent/EP0422337B1/en not_active Expired - Lifetime
- 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 |
---|---|
DD300074A5 (en) | 1992-05-21 |
DE3920321C2 (en) | 1991-08-29 |
SK304690A3 (en) | 1998-10-07 |
EP0422337A3 (en) | 1991-04-24 |
YU47359B (en) | 1995-01-31 |
ATE102844T1 (en) | 1994-04-15 |
DE3920321A1 (en) | 1991-01-24 |
EP0422337A2 (en) | 1991-04-17 |
YU120890A (en) | 1992-12-21 |
EP0422337B1 (en) | 1994-03-16 |
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