ПОКРЫТАЯ СТЕКЛОМ, ДИСПЕРГИРУЮЩАЯ ГАЗ, МЕШАЛКА

Покрытая стеклом, диспергирующая газ мешалка, содержащая ступицу, имеющую расположенное в центре отверстие. Отверстие имеет центральную ось и заданный размер для прохождения через него ведущего вала, имеющего, по существу, вертикально проходящую продольную ось, так что центральная ось расположенного в центре отверстия совпадает с продольной осью вала. Мешалка имеет множество углов и кромок, имеющих закругленную форму. Кроме того, мешалка содержит множество лопастей, присоединенных к ступице, которые проходят радиально наружу от центральной оси. Каждая из лопастей имеет переднюю вогнутую поверхность и заднюю выпуклую поверхность, определяемые нижней кромкой, верхней кромкой, внутренней кромкой и наружной кромкой. Вогнутая поверхность имеет такую форму, при которой верхняя кромка выступает над нижней кромкой, причем выступающая часть вогнутой поверхности лопасти находится под углом от примерно –5° до примерно +30° относительно горизонтали. Лопасти могут быть соединены со ступицей непосредственно ...

СПОСОБ ОКИСЛЕНИЯ ОРГАНИЧЕСКИХ СОЕДИНЕНИЙ И СИСТЕМА ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

Окисление органических соединений проводят чистым или практически чистым кислородом с испарительным охлаждением. Окисление органических соединений, сопровождающееся образованием твердых продуктов или побочных продуктов, облегается благодаря исключению прямого контакта поверхностей теплообмена, которые покрываются твердыми продуктами окисления и побочными продуктами.

Rührorgan

Liquid aerating tower contg perforated trays - with bottom gas inlet and downward flow between trays and wall

A liq. aeration appts. comprises a vessel (tower) with bottom inlet pipe for the aerating gas a number of perforated plates or the like arranged at vertical intervals above the pipe, each (generally horizontal) plate has a downward hanging edge at a little distance from the vessel inner wall, thus forming a circulation passage between plate and wall. All plates may either be mounted on a vertical revolving shaft or suspended fixed from the vessel wall. Typical uses are for culture growth, gas absorption and reaction processes.

METHOD AND APPARATUS FOR DISSOLVING GAS IN AND STRIPPING GAS FROM WATER

... 1326457 Dispersing gases in liquids R E SPEECE 23 April 1971 [29 April 1970] 11058/ 71 Heading B1C Gas such as air or oxygen is dissolved in and gas such as nitrogen is stripped from a body of water by inducing a downflowing stream of the water in the body of the water and injecting bubbles of the first said gas into the upstream end of the stream which has at that point a velocity greater than the buoyant velocity of the bubbles and confining the stream of water and gas bubbles in a downwardly extending flow path having a progressively increasing transverse cross-sectional area whereby the bubbles have prolonged contact with the water. The stream of water is induced by an impeller 20 to flow through an intake tube 14 leading to an inverted funnel 16, and the treating gas is introduced from a source 30 under static pressure through a bubble dispersed 34. In a modification, Fig. 2 (not shown), the downflowing stream is induced by a hydrostatic head of water. A plurality of apparatuses may ...

SUBMERGED TURBINE AERATOR

... 1380774 Aerating liquids WESTINGHOUSE ELECTRIC CORP 24 April 1972 [15 June 1971] 18871/72 Heading B1C Aerating apparatus comprises an impeller 12 formed as a circular platform 22 supporting vanes only on its upper side and means in the form of a sparge ring 16 to feed gas to the lower side of the platform and thus cause the gas to ascend to the lower side of the platform and thence through an outwardly-direction stream of liquid caused by the rotation of the impeller by a motor 30 and gearing 32. A conical fairing 26 is arranged below the platform which is itself concentric with the sparge ring 16.

APPARATUS FOR INTRODUCING A GAS INTO A LIQUID

Apparatus for introducing a gas into a liquid

An apparatus for introducing a gas into a liquid comprising a container, at least one vertical conduit in fluid communication with the container, the conduit having therein at least one mixer assembly for breaking up gas bubbles into bubbles having small diameters, and a means for introducing a gas into the conduit at a point below the mixer assembly, the mixer assembly comprising at least two freely rotating turbines which are spaced apart axially and have different direction or speed of rotation.

Method and apparatus for aeration of fluid media

APPARATUS FOR GAS-LIQUID CONTACT

SEALED PROPELLER FOR PRODUCING METAL FOAM AND APPROPRIATE SYSTEM

MIXING APPARATUS FOR MIXING AT LEAST TWO FLUIDS, AND ITS USE

PROCEDURE AND DEVICE FOR THE AERATION OF FLUSSIGKEITEN

DEVICE FOR GAS ENTRY INTO A LIQUID

MIX STAFF SUITABLY FOR EMULSIFYING LIQUIDS.

RUEHRER.

PROCEDURE FOR THE LEACHING OF CELEBRATIONS COMPONENTS FROM MUD

PROCEDURE AND DEVICE FOR THE AERATION OF FLUSSIGKEITEN

DEVICE TO THE BEGASEN OF LIQUIDS

MECHANISM FOR UMWALZEN AND/OR BELUFTEN ONE FLUSSIGKEIT AND USE OF THE MECHANISM

DEVICE FOR AGITATING AND VENTILATING A LIQUID AS WELL AS FOR FOAM DISTANCE IN A LIQUID TREATMENT TANK

DEVICE FOR LEACHING OUT SOLIDS FROM MUD

AGITATING ORGAN

FLOTATION APPARATUS

PROCESS AND APPARATUS FOR PERFORMING A GAS-SPARGED REACTION

Method and mixer apparatus for mixing gas into slurry in a closed reactor

Stirred tank reactor

The invention relates to a stirred tank reactor for gas-liquid mass transfer in a slurry. The reactor includes a reactor tank (1) having a first volume (V ...

Multistage reactor, uses and method for making hydrogen peroxide

Low pressure process for entraining gas into liquid solution

IMPROVED AERATOR AND MIXER

A diffuser which includes a cylinder open at one end and closed at the opposite end, the open end of the cylinder being securable to air supply; the wall of the diffuser being formed with a plurality of holes therethrough, each hole having a large diameter on the exterior of the wall of the diffuser than on the interior of the wall of the diffuser; the longitudinal axis of each hole being inclined at an acute angle to both the radius and the longitudinal axis of the diffuser, and the orientation of each hole with respect to the longitudinal axis of the diffuser being such that when the diffuser is rotated about it longitudinal axis in use, the leading edge of each hole is at a higher elevation than the trailing edge of each hole.

AERATION METHOD AND APPARATUS

SEALED IMPELLER FOR PRODUCING METAL FOAM AND SYSTEM AND METHOD THEREFOR

A system for producing a metal foam comprises a bath containing a molten metal, a rotating shaft or impeller extending through the base of the bath into, and submerged in the molten metal, and a gas discharge nozzle provided on the submerged end of the shaft. The opposite end of the shaft is connected to a gas supply line and the shaft is rotated with a motor. A seal is provided at the opening in the base of the bath for preventing leakage of the molten metal there-through.

MODULAR AERATION DEVICE

SPARGE FOR A HIGH-PRESSURE VESSEL

A sparge (20, 40, 60 and 80) for use in a high-pressure vessel (26) operated at elevated temperatures and having high energy agitators (16) for suspending mineral containing particles in a slurry (36). The sparge (20, 40, 60 and 80) injects reagent fluids into the slurry (36) to reduce reaction times and for controlling process parameters for extracting valuable minerals from the particles. The sparge (20, 40, 60 and 80) has a vapour lock (constituted by components 24, 29, 30, 32, 44, 46, 64, 65, 66) to inhibit the flow of particulate material and detritus material under low or no fluid flow situations which occur commonly in the operation of high pressure autoclaves (26). The sparge (20, 40, 60 and 80) has a fluid flow path that increases in cross sectional area in the direction of flow of reagent fluids so as to keep reagent fluids flowing at a velocity below a critical impingement velocity that can cause metal materials of the sparge (20, 40, 60 and 80) to either wear rapidly or even ...

A REACTOR FOR MIXING LIQUID, GAS AND SOLID MATERIAL

The reactor (10) comprises a vertical cylindrical reactor tank (11) and a concentrically within the reactor tank (11) positioned vertical draft tube (100). The draft tube (100) comprises a first conical portion (110), a first cylindrical portion (120), a second conical portion (130) and a second cylindrical portion (140). An axial flow impeller (20) is positioned at a lower end (122) of the first cylindrical portion (120) and a vertical shaft (35) extends upwards through an upper end (12) of the reactor tank (11). A baffle arrangement (180) is positioned within the second conical portion (130) and a gas supply device (170) is positioned within the draft tube (100) below the impeller (20).

SINGLE-USE MIXING AND BIOREACTOR SYSTEMS

Disclosed are magnetic agitation mixing systems for use with flexible container reaction vessels. In one aspect of the invention, the orientation of magnetic coupling between the impeller magnets and the external driver magnets is modified such that the coupling is neither strictly axial nor strictly radial. Also disclosed are "receiver-less" retainer configurations whereby the single-use container need not have a rigid base that defines a cup or post to engage of rotatable agitator.

DEVICE FOR STIRRING AND AERATING A LIQUID AND ELIMINATING THE FOAM IN A VAT FOR TREATING THIS LIQUID

The invention concerns a device for stirring and aerating a liquid and eliminating the foam in a vat for treating this liquid. The device comprises a vertical casing (11) extending over part of the height of the vat (1), a funnel (14) arranged around the upper part of the casing (11), a first series of windows (17) provided in the uppe r part of the casing (11), a second series of windows (18) provided in the casing (11) abo ve the base of the funnel (14), a vertical shaft (19) arranged inside the casing (11), a helix (20) fixed at the free end of the shaft (19), beneath the base of the funnel (14), an anti-vortex device (24) arranged inside the casing (11), beneath said helix (20), means (25) for regulating the level of liquid in the funnel (14) and means (33) for injecti ng pressurised gas in to the casing (11). The invention is applicable for instance to the treatment of greasy waste extracted from urban effluents of waste water or of agro- industries.

Apparat zur Herstellung flüssiger Gaslösungen, insbesondere Kohlensäurelösung für die Bereitung moussierender Getränke.

Apparat zur Herstellung flüssiger Gaslösungen, insbesondere Kohlensäurelösung für die Bereitung moussierender Getränke.

Apparat zum Sättigen von Wasser mit Kohlensäure.

Vorrichtung zum Mischen und Sättigen von Flüssigkeiten, insbesondere von Fruchtsäften, mit Gasen.

Installation pour le traitement d'un liquide.

Vorrichtung zum Begasen, insbesondere Belüften von Flüssigkeiten

Liquid effluent aerated by two propellors

Sewage or other effluent is agitated and aerated in tank contg. two coaxial propellers, each surrounded by a fixed sleeve, one propeller sucking from the tank itself, the other directly from the effluent inlet line. Air is injected near one or both propellers.

Aggregat zur Herstellung von Gemischen, Lösungen, Emulsionen und Suspensionen

Einrichtung zum Umwälzen und Belüften von Flüssigkeiten, insbesondere Gewässer und Abwasser, in einem Becken

VORRICHTUNG ZUM LOESEN EINES GASES IN EINER FLUESSIGKEIT.

Procédé de préparation du diuranate d'ammonium et dispositif pour la mise en oeuvre du procédé

Verfahren zur Eintragung und Umwälzung von Sauerstoff oder sauerstoffhaltigem Gas in eine zu klärende Flüssigkeit und Einrichtung zur Durchführung des Verfahrens

Belüftungseinrichtung für Flüssigkeiten und Verfahren zu deren Betrieb

Liquid manure aeration - by nozzles attached to revolving stirrer blades fed through hollow shaft and thrust bearing

In a system for the treatment of liquid manure and other sewage before its discharge into the drainage system, air is introduced into the fluid through aerator nozzles. The basin includes a revolving stirring mechanism and each stirrer blade is fitted with nozzles which are connected to an air compressor. This avoids the frequent blockages caused by air injector atomizer nozzles and requires a much lower power input.

GAS LIQUID CONTACTING DEVICE.

СПОСОБ И СМЕСИТЕЛЬНОЕ УСТРОЙСТВО ДЛЯ СМЕШИВАНИЯ ГАЗА С СУСПЕНЗИЕЙ В ЗАКРЫТОМ РЕАКТОРЕ

Смесительное устройство в соответствии с данным изобретением включает закрытый реактор (20); две мешалки (28, 29) на различной высоте, которые расположены на одном валу (27); подводящую газ трубу (30) под нижней мешалкой и направляющие перегородки. Лопасти мешалок имеют, по существу, прямоугольную форму; их минимальное число равно шести. Угол наклона лопастей нижней мешалки составляет приблизительно 50-70°, а угол наклона лопастей верхней мешалки составляет приблизительно 25-35°. Число направляющих перегородок (23) равно по меньшей мере шести, а их протяженность составляет приблизительно 20% от диаметра реактора. Данное изобретение также относится к соответствующему способу.

СПОСОБ И СМЕСИТЕЛЬНОЕ УСТРОЙСТВО ДЛЯ СМЕШИВАНИЯ ГАЗА С СУСПЕНЗИЕЙ В ЗАКРЫТОМ РЕАКТОРЕ

Смесительное устройство в соответствии с данным изобретением включает закрытый реактор (20); две мешалки (28, 29) на различной высоте, которые расположены на одном валу (27); подводящую газ трубу (30) под нижней мешалкой и направляющие перегородки. Лопасти мешалок имеют, по существу, прямоугольную форму; их минимальное число равно шести. Угол наклона лопастей нижней мешалки составляет приблизительно 50-70°, а угол наклона лопастей верхней мешалки составляет приблизительно 25-35°. Число направляющих перегородок (23) равно по меньшей мере шести, а их протяженность составляет приблизительно 20% от диаметра реактора. Данное изобретение также относится к соответствующему способу.

СПОСІБ ОДЕРЖАННЯ СОЛЕЙ ГІДРОКСИЛАМІНУ

Винахід стосується способу одержання солей гідроксиламіну шляхом каталітичного відновлення монооксиду азоту воднем у розведеному водному розчині неорганічної кислоти в присутності суспендованого платинового каталізатора на носії за декілька стадій, що здійснюються послідовно. Відповідно до винаходу спосіб здійснюється в реакторі змішування, у нижній частині якого встановлена система введення і розподілу газу, безпосередньо над нею знаходиться дискова мішалка, у якій навколо втулки на несучій поверхні або несучому диску розташовані кутові, увігнуті і встановлені радіальнo одна навпроти іншої лопатки мішалки, що своїми кутами або увігнутими сторонами обертаються в напрямку руху, а у верхній частині реактора змішування на валу мішалки встановлена дволопатева плосколопатева мішалка, кожна лопать якої складається з окремих пластин, встановлених під кутом до осі лопаті, які при своєму обертанні постійно зволожують кришку реактора. Перевагою способу відповідно до винаходу є те, що завдяки дії ...

СПОСОБ ПОЛУЧЕНИЯ СОЛЕЙ ГИДРОКСИЛАММОНИЯ

Изобретение относится к способу получения солей гидроксиламмония путем каталитического восстановления моноксида азота водородом в разбавленном водном растворе неорганической кислоты в присутствии суспендированного катализатора на основе платины на подложке за несколько последовательных реакционных стадий. Согласно изобретению способ осуществляется в реакторе смешения, в нижней части которого установлена система ввода и распределения газа, непосредственно над ней находится дисковая мешалка, у которой вокруг втулки с опорной поверхностью или опорными кронштейнами располагаются скошенные, вогнутые и установленные наклонно лопасти мешалки, которые своими углами или вогнутыми сторонами вращаются в направлении движения, а в верхней части реактора смешения на валу мешалки установлена двухлопастная плосколопастная мешалка с отдельными лопастями в виде пластин, установленными со смещением от центра, которые при своем вращении постоянно увлажняют крышку реактора. Способ согласно изобретению имеет ...

УСТРОЙСТВО И СПОСОБ ПОЛУЧЕНИЯ ПЕРОКСИДА ВОДОРОДА

... 1. Устройство, включающее цилиндрический вертикальный смесевой реактор, снабженный устройством впрыскивания газовых реагентов на дне, устройством отвода газа наверху и, при необходимости, рассекателями и/или теплообменником, отличающееся тем, что реактор снабжен радиально осевыми турбинами, расположенными предпочтительно регулярно вдоль одного вертикального перемешивающего вала. 2. Устройство по п.1, отличающееся тем, что высота реактора составляет от 1,5 до 10 диаметров и предпочтительно от 2 до 4 диаметров. 3. Устройство по п.1 или 2, отличающееся тем, что турбины являются радиальными. 4. Устройство по п.3, отличающееся тем, что турбины являются фланцевыми. 5. Устройство по п.4, отличающееся тем, что турбины имеют одно или два центральных отверстия. 6. Устройство по одному из пп.1-5, отличающееся тем, что число турбин составляет от 2 до 20 и предпочтительно от 3 до 8. 7. Устройство по одному из пп.1-6, отличающееся тем, что внешний диаметр турбин составляет от 0,2 до 0,5 диаметра реактора ...

GAS-DISPERSING MIXER AND MIXING UNIT

DEVICE AND METHOD FOR PRODUCING HYDROGEN PEROXIDE

MIXING APPARATUS

УСТРОЙСТВО ДЛЯ ПЕРЕМЕШИВАНИЯ И АЭРАЦИИ ЖИДКОСТИ, А ТАКЖЕ ДЛЯ УДАЛЕНИЯ ПЕНЫ ИЗ БАЧКА

СМЕСИТЕЛЬНЫЙ АППАРАТ

Предложен смесительный аппарат (100) для смешивания по меньшей мере двух текучих сред, содержащий вал (120), выполненный с возможностью вращения вокруг своей продольной оси (121), первую (122) и вторую (124) радиально проходящие крыльчатки, установленные на валу (120) и соответственно разнесенные в осевом направлении, причем первая крыльчатка (122) содержит множество изогнутых лопастей (125), выполненных с возможностью обеспечения перемещения текучих сред в осевом направлении ко второй крыльчатке (124), а вторая крыльчатка (124) содержит множество изогнутых лопастей (125), выполненных с возможностью обеспечения перемещения текучих сред в осевом направлении к первой крыльчатке (122).

Apparatus for dispersing a gas in a liquid

PROCESS AND APPARATUS FOR THE CULTURE OF MICROORGANISMS

AERATION APPARATUS FOR LIQUIDS

MIXING DEVICE FOR INTRODUCING ADDITIVES INTO A LIQUID

Installation improved for the treatment of the liquids

Device aeration and agitation of a liquid such as effluent fat

L'invention a pour objet un dispositif d'aération et de brassage d'un liquide comme par exemple les effluents graisseux extraits des effluents urbains d'eaux usées. Le dispositif comprend une cheminée verticale (11), un arbre vertical (15) entraîné en rotation, disposé à l'intérieur et s'étendant sur toute la hauteur de la cheminée (11), une hélice (18) solidaire en rotation avec l'arbre (15) et disposée à l'intérieur de la cheminée (11), un organe anti-vortex (19) disposé à l'intérieur de la cheminée (11) au-dessous de ladite hélice (18), des moyens (22)de brassage du liquide solidaires en rotation avec l'arbre (15) et disposés à l'intérieur de la cheminée (11) et des moyens (26) d'injection d'un gaz sous pression dans la cheminée (11) au-dessous de l'organe anti-vortex (19).

AERATION APPARATUS FOR LIQUIDS

aerador e misturador aprimorados

Processo e sistema aperfeiçoado para a produçao de ácido tereftálico através da oxidaçao de p-xileno

misturador e método para misturar um gás e uma solução

PROCESS AND DEVICE OF FUMIGATION OF LIQUIDS

GAS-LIQUID-SOLID PRECIPITATION REACTOR

The invention relates to a gas-liquid-solid precipitation reactor including scrubbing means (17, 18, 19, 20) associated with the lower outlet of a central tube (4) of an agitator (3), having an upper inlet through which a gas enters, said gas flowing through the central tube (4) and being released inside the lower part of the container (1) through a diffuser outlet (5), such as to bubble into a liquid reagent contained in the reactor. The aforementioned scrubbing means (17, 18, 19, 20) enable the simultaneous precipitation and discharge of solid particles contained in the gas when bubbled, without the reactor having to be stopped. The draining of the solids is facilitated with the use of a trap disk (24) on the internal base of the container (1), the upper face of which is provided with descending grooves (25) which direct the solids towards the base of the container (1) by means of agitation.

METHOD FOR PRODUCING POLYPEPTIDE VIA BACTERIAL FERMENTATION

A process for producing a polypeptide of interest from fermentation of bacterial host cells comprising nucleic acid encoding the polypeptide is provided. In this method, the host cells employed have an inactivated electron transport chain. Further provided is a method for determining if a particular bacterial cell culture has a propensity for dissolved oxygen instability when fermented on a large scale.

SYSTEM, METHOD AND APPARATUS FOR DIFFUSING GAS BUBBLES INTO A BODY OF WATER

System, method and apparatus for diffusing gas bubbles into a body of water such as a pond, lagoon or basin (26). A small amount of water is continuously removed from the bottom of the body of water by one or more counterflow gas lift diffusers (20). This small amount of water is flowed down underground, has gas bubbles introduced into it, and is then returned to the body of water. The quantity of water removed and treated in this way is a small fraction of the total body of water in the pond, lagoon or basin. The ratio of (1) the volume of the body of water to (2) the total volume of the channels through which the water flows downward, and then back up into the body of water, is at all times at least about 10:1. In the broadest form of the invention, a gas diffuser (54) introduces gas bubbles into the water in the return channel (36) at a level at least about 2 feet below the bottom of the body of water. Improved results are obtained if this distance is at least about 3 feet, and it is ...

MIXER SYSTEMS

L'invention concerne un système de mélange amélioré de liquides en vrac et de mise en contact efficace gaz-liquide pour permettre un transfert de masse du gaz au liquide, notamment un liquide non Newtonien dont la viscosité est réduite dans des conditions de cisaillement (fluidification par cisaillement) dans un réservoir vertical. On peut réaliser dans le réservoir un procédé, tel qu'une fermentation, permettant de produire des quantités commerciales de polysaccharides, tels que de la gomme xanthane. On monte un tube de circulation vertical dans le réservoir, le tube d'aspiration comportant une extrémité inférieure espacée du fond du réservoir et une extrémité supérieure espacée de la surface du liquide dans le réservoir, au-dessous de laquelle elle se trouve. Plusieurs palettes de mélange dans le tube de circulation sont suffisamment proches l'une de l'autre pour établir un champ ou une configuration d'agitation qui provoquent une fluidification par cisaillement et un flux ascendant dans ...

Apparatus for incorporating gas into a sugar mass

An apparatus for incorporating gas under pressure into a fused sugar mass, said vessel having an interior oriented to have top region and a bottom region an agitator in said interior and a bubble forming means for introducing compressed gas into said fused sugar mass as a curtain of gas bubbles, said bubble forming means being in the bottom of the pressure vessel below said agitator.

Mixing apparatus

An apparatus for mixing a liquid and a gas in a tank includes a means for circulating the liquid in the tank and a sparge ring for dispersing gas into the tank. The circulating means includes a plurality of blades extending downwardly from a bottom surface of a disc so that rotation of the blades creates a suction area. The sparge ring introduces gas into the tank in a direction that bypasses the suction area to prevent the gas from flowing into the suction area. Preferably, the sparge ring has a discharge means with a radius that is larger than the distance from the center of the disc to the outer tips of the blades.

FERMENTER FOR PRODUCING A PSEUDOPLASTIC MEDIUM

Fermenter for producing a shear-thinning medium comprising a tank volume and a stirring arrangement having an improved distribution capacity or a more uniform shear stress. 116.-. (canceled)17. A fermenter for producing a shear-thinning medium , comprising:{'b': '70', 'a tank volume () and'}{'b': 10', '11', '20', '21', '60, 'a stirring arrangement having a first stirring element () having at least one stirring blade (), a second stirring element () having at least one stirring blade (), and a rotation axis (),'}{'b': 10', '20', '60, 'wherein the first stirring element () and the second stirring element () are fixed on the rotation axis () such that they rotate with the rotation axis and are spaced axially,'}{'b': '60', 'wherein the rotation axis () when used as intended is aligned substantially parallel with respect to the direction of the earth gravitation field, and'}{'b': 70', '10', '20', '75', '60', '75', '11', '12', '10', '21', '22', '20', '75', '71, 'wherein the tank volume () has in the region of the stirring elements (, ) substantially the shape of a circular cylinder () and the rotation axis () is situated substantially on the central axis of the circular cylinder (), wherein the stirring blades (, ) of the first stirring element () and the stirring blades (, ) of the second stirring element () extend up to at least 0.8 times the distance between central axis of the circular cylinder () and a wall () of the circular cylinder, giving a ratio (d/D) of stirring-element diameter (d) to inner diameter (D) of the tank of at least 0.8,'}{'b': 80', '7, 'further comprising an active temperature-adjustable surface () for heating and/or cooling, wherein the flow profile () is guided along the temperature-adjustable surface,'}{'b': 80', '85', '60', '88', '10', '20, 'and wherein the temperature-adjustable surface () is formed as circumferential pipe sections () which are, with respect to the rotation axis (), arranged in groups () in the axial direction, wherein one ...

REACTION APPARATUS

A reaction apparatus which is used for conducting a gas-liquid chemical reaction in a state that a liquid is in a continuous phase, wherein its reactor has therein a shear type stirring impeller for dispersing a raw reaction gas or a carrier gas and a film-formed catalyst, which apparatus is capable of producing a target reaction product; and a process for producing a tertiary amine in such reaction apparatus.

METHOD FOR THE LEACHING OF SOLID MATTER FROM SLUDGE

The invention relates to a method for the leaching of solid matter from a sludge with the aid of a gas containing oxygen, whereby the solid matter of the sludge is recirculated in a tall reactor equipped with a central pipe in the centre of the reactor and a double-action mixer located in the vicinity of the lower edge of the central pipe. A flow is formed with the aid of the mixer which sucks the sludge from the central pipe downward, and a gas to be conducted into the sludge in the bottom part of the reactor is dispersed in the form of small bubbles into the sludge outside the central pipe and the flow direction of the sludge is turned upwards in the outer casing of the reactor.

Apparatus for treatment of organic waste water and contactor for use therein

An apparatus for treating organic waste water including a treating tank (1) equipped with oscillatable submerged type contactors in which the organic waste water is treated. A top mixer (4) is disposed under water in a top portion of the treating tank for creating a current of water in agitated condition. Pipe mixers (5) are disposed below the top mixer, each pipe mixer including a pipe which is open at both ends and a band-like agitating blade fitted in the pipe and having a baffle plate portion. One end opening of each pipe mixer is positioned below the top mixer and the other end opening thereof is positioned in a lower portion of the treating tank, so that the current of water from the top mixer can pass through the pipe mixer from the one end opening toward the other end opening and can be discharged from the other end opening. An air feeder pipe (7) extends from an external source (6) to a position intermediate between the water-current generating top mixer (4) and the pipe mixers ...

Fluid agitation and aeration - has hyperboloid agitator body which separates actions for min. energy consumption

To operate a hyperboloid agitating and aerating system, for single- and multiple-phase fluids, the tank or other vessel is initially filled with waste water and the agitator is driven for a time period to aerate the liquid. In a third stage, the water is only recirculated and in a fourth stage, the agitator is stopped for the sludge to settle and the clear water drawn off. ADVANTAGE - The method gives a clear sepn. between agitation, mixing and aerating to give min. energy consumption in a combined waste water processing action.

VERFAHREN UND VORRICHTUNG ZUR KULTIVIERUNG EINES MIKROORGANISMUS

RUEHRER.

Turbine agitator assembly for the dispersion of a fluid in a liquid comprises (a) a reservoir for liquid; (b) a rotor mounted in the reservoir with a number of radially extending blades; and (c) means for sparging a fluid into liuqid liquid in the reservoir; in which (d) the fluid sparging means and the rotor being so constructed and arranged that the submerged rotor blades and/or the liquid flow they generate disperse the sparged fluid; such that (e) each of the blades is hollow and has a discontinuous leading edge, only a single trailing edge along an acute angle, no external concave surface and an open radially outer end.

Rühr- und Begasungsvorrichtung für Belebtschlämme

APPARATUS AND PROCESS FOR THE AERATION OF A HIGH SOLIDS CONCENTRATION PSEUDOPLASTIC LIQUID-SOLID MIXTURE

APPARATUS FOR INTRODUCING A GAS INTO A LIQUID

Mixing apparatus

A mixing apparatus 100 for mixing at least two fluids, the mixing apparatus 100 comprising a shaft 120 rotatable about its longitudinal axis 121, a first 122 and a second 124 radially extending impeller mounted on the shaft 120 and respectively axially spaced apart, characterised in that the first impeller 122 comprises a plurality of curved blades 125 operable to move said fluids in an axial direction towards the second impeller 124, and the second impeller 124 comprises a plurality of curved blades 125 operable to move said fluids in an axial direction towards the first impeller 122.

GAS INJECTION METHOD AND APPARATUS

A method and apparatus for injecting a gas into a liquid in which a rotating helical impeller within a draft tube submerged in the liquid creates a liquid flow within the draft tube. Gas bubbles are injected into the draft tube either above or below or alongside the helical impeller or in all three locations. The liquid is drawn into the draft tube with a superficial velocity greater than a substantially uniform terminal ascent velocity of the gas bubbles to allow entrainment of undissolved gas bubbles in the bulk liquid into the liquid being drawn into the draft tube. The gas bubbles are injected with a uniform diameter of between about 10.0 microns and about 1.0 millimeters. The small bubble size enhances the dissolution of the gas into the liquid and also allow the entrainment of the gas into the liquid being drawn into the draft tube. 1. An apparatus for injecting a gas into a liquid comprising:a draft tube adapted to be submerged in a liquid and having at least one inlet opening situated at one end of the draft tube and a discharge opening located at the other end thereof;a helical impeller located within the draft tube;a motor connected to the draft tube and a shaft projecting into the draft tube from the one end of the draft tube and connected to the helical impeller to rotate the helical impeller and thereby to create a liquid flow by drawing the liquid into the draft tube from the at least one inlet opening and discharging the liquid flow from a discharge opening; 'the gas bubble injector means configured to inject the gas bubbles with at least a substantially uniform diameter of between about 10.0 microns and about 1.0 millimeter to enhance the surface area of the gas bubbles and therefore, a dissolution rate of the gas within the liquid and to impart a buoyancy to the further part of the remaining portion of the gas bubbles that will result in at least a substantially uniform terminal ascent velocity thereof; and', 'means for injecting gas bubbles of the ...

Heat exchanger system with flexible bag

A bag assembly for use with a heat exchanger includes a flexible bag having of one or more sheets of polymeric material, the bag having a first end that bounds a first compartment and an opposing second end that bounds a second compartment, a support structure being disposed between the first compartment and the second compartment so that the first compartment is separated and isolated from the second compartment. A first inlet port, a first outlet port, and a first drain port are coupled with the flexible bag so as to communicate with the first compartment. A second inlet port, a second outlet port, and a second drain port are coupled with the flexible bag so as to communicate with the second compartment.

Gas-Liquid Dispersion Impeller Assembly With Annular-Sector-Shaped Concave Blades

The invention discloses an agitation device comprising an impeller, an agitating shaft and a power device. The impeller includes a disc, a hub and concave blades. Each blade consists of a concave surface which extends radially and has an annular sector-like shape, the projections of the upper and lower portions of the blade in the horizontal plane are two annular sectors, and the radian of the annular sector obtained by the projection of the upper portion is larger than that of the lower portion, and the annular sector-like shape and the rotation direction of blades are the same, so that each portion of the blades directly faces an incoming flow, the utilization efficiency of blades is increased and the impeller has low energy consumption and high gas-liquid dispersion efficiency. The device is efficient and energy-saving, has low power consumption, high mixing performance and high gas holdup and mass transfer performance.

System and method for aerating a fluid

An aeration system including a frame and an aerator. The aerator may be supported by the frame. The aerator may include an input and an output. The aerator may be configured to rotate with respect to the frame, and upon rotating, receive a first fluid at the input and output the first fluid into a second fluid at the output.

REACTOR FOR HYDROTHERMAL CARBONIZATION WITH OPTIMIZED MIXTURE OF SLUDGE AND STEAM

Disclosed is a reactor for treating, particularly by hydrothermal carbonization, sludge containing organic matter, including, with: 2. The reactor according to claim 1 , wherein the inner chamber is of vertical dimension L claim 1 , and wherein the steam injection zone is separated from the sludge introduction zone by a distance greater than L/12 claim 1 , preferably greater than L/8 claim 1 , more preferably greater than L/4.32. The reactor according to claim 1 , wherein the steam injection direction is against the sludge circulation direction () in the steam injection zone.46. The reactor according to claim 1 , further comprising a circulator () arranged to circulate the sludge in the inner chamber along the circulation path.5810. The reactor according to claim 1 , further comprising claim 1 , in an upper portion of the inner chamber claim 1 , a degassing volume () arranged to collect gaseous effluents contained in the sludge claim 1 , the reactor further comprising at least one vent () arranged to discharge these gaseous effluents.69100. The reactor according to claim 1 , further comprising at least one orifice () arranged to inject the acid to the vessel ().710010124. The reactor according to claim 1 , wherein the vessel () comprises a wall () arranged to separate two parts of the circulation path having opposing sludge circulation directions ( claim 1 , ).8101. The reactor according to claim 7 , wherein the wall () forms a tube.921014101bb. The reactor according to claim 4 , wherein the inner chamber comprises an inner space () located inside the tube () and an outer space () located outside the tube () claim 4 , the reactor being arranged:{'b': 2', '101', '101, 'i': 'b', 'so that the steam injection zone is located in a lower region of the inner space () of the tube (), the lower region comprising a first end of the tube (),'}{'b': 6', '2', '101', '101, 'i': 'b', 'so that the circulator () is located, at least in part, in an upper region of the inner space () ...

Mixer-container and method for assembling a mixer-container including a telescopic shaft

Disclosed is a method for assembling a mixer-container intended for receiving a biopharmaceutical fluid in which: a container is provided, the container including: a mixing device including at least one shaft having an adjustable length, and at least one first bearing attached to the wall, the shaft extending at least into the inner space from the first bearing; a rigid outer device that compresses the container is provided; a drive motor located outside the container is provided; the first bearing of the container is placed so as to be spaced apart from the motor; the length of the shaft is adjusted along the main axis by arranging the shaft opposite the motor to enable the motor to rotate the shaft.

FLUID MIXING SYSTEMS INCLUDING HELICAL MIXING ASSEMBLY WITH IMPELLER ATTACHMENT AND METHODS OF USE

The present set of embodiments relate to a bioproduction system, method, and apparatus for mixing a fluid. The bioproduction mixing system includes an offset helical assembly having a stabilizer and impeller for mixing a fluid within a flexible compartment The bioproduction mixing system is designed for efficient mixing of the fluid and for use with a variety of different impellers that can be located at different locations according to the volume and shape characteristics of the flexible compartment. The bioproduction mixing system is optimized to eliminate stagnation zones while maximizing bulk fluid flow. 1. A bioproduction mixing assembly , comprising:a helical assembly including a first line and a second line;a stabilizer including a first portion and a cross member having a first end and a second end, wherein the first end engages the first line and the second end engages the second line;an impeller including a second portion, a first attachment, and a second attachment, wherein the first attachment engages the first line and the second attachment engages the second line, and the first portion interacts with the second portion to orient the impeller relative to the first and second lines.2. The bioproduction mixing assembly of wherein the first portion is a stem and the second portion is a tubular receiver configured to accept the stem.3. The bioproduction mixing assembly of wherein the first and second lines each include a plurality of openings and the first end projects into a first opening on the first line and the second end projects into a first opening on the second line.4. The bioproduction mixing assembly of wherein the first attachment projects into an opening on the first line and the second attachment projects into an opening on the second line.5. The bioproduction mixing assembly of wherein stabilizer caps affix to the ends to secure the stabilizer to the first and second lines.6. The bioproduction mixing assembly of wherein impeller caps affix to ...

Modular Aeration Device

An aeration device, and containers or vessels incorporating the same. The aeration device can comprise a plurality of interchangeable aeration elements that can produce gas bubble of different sizes and deliver them to the contents of the container. Also disclosed are containers, such as a disposable or single-use container, optionally having one or more inlets and one or more outlets, an aeration device including a plurality of aeration elements, and a mixer to cause mixing, dispersing, homogenizing and/or circulation of one or more ingredients contained or added to the container. The container can be a bioreactors and the aeration device controls the dissolved gas concentration content of the bioreactor contents, thereby facilitating proper growth of cell cultures in the bioreactor. 1. An aeration device , comprising:a base member;a plurality of aeration elements each removably attached to said base member, each said aeration element comprising a gas permeable material and an inlet adapted to connect to a gas source, said inlet being in fluid communication with said gas permeable material.2. The aeration device of claim 1 , wherein there are first and second aeration elements claim 1 , said first aeration element having a first gas permeable material having a first pore size claim 1 , and said second aeration element having a second gas permeable material having a second pore size different from said first pore size.3. The aeration device of claim 1 , wherein said gas permeable material comprises a spunbond olefin material.4. The aeration device of claim 1 , wherein said gas permeable material comprises a membrane.6. The aeration and mixing assembly of claim 5 , wherein said aeration device comprises first and second aeration elements claim 5 , said first aeration element having a first gas permeable material having a first pore size claim 5 , and said second aeration element having a second gas permeable material having a second pore size different from said ...

MIXER-CONTAINER AND METHOD FOR ASSEMBLING A MIXER-CONTAINER INCLUDING A TELESCOPIC SHAFT

A method for assembling a mixer-container intended for receiving a biopharmaceutical fluid includes providing a container with a mixing device including at least one shaft having an adjustable length, and at least one first bearing attached to a wall of the container, the shaft extending at least into the inner space from the first bearing; a rigid outer device that compresses the container; and a drive motor located outside the container, the first bearing of the container is placed so as to be spaced apart from the motor, and the length of the shaft is adjusted along the main axis by arranging the shaft opposite the motor to enable the motor to rotate the shaft.

Impeller including one or m ore turbulators, for a bioreactor system

An impeller ( 18 ), for example, a Rushton impeller for a bioreactor system ( 10 ) is disclosed. The impeller ( 18 ) includes a hub ( 44 ), optionaly including a slot ( 168 ), a plurality of blades ( 46 ), and one or more turbulators ( 64 ). The plurality of blades ( 46 ) is disposed along a circumferential direction ( 48 ) of the hub ( 44 ) and spaced apart from each other. Each of the plurality of blades ( 46 ) is coupled to at least a portion of a circumference ( 50 ) and/or a top surface ( 1351;1451;1551 ) of the hub ( 44 ). Each blade of the plurality of blades ( 46 ) includes a pressure face ( 52 ) and a suction face ( 54 ). The one or more turbulators ( 64 ) is disposed on at least a portion of the suction face ( 54 ), the pressure face ( 52 ), or both, of a blade of the plurality of blades ( 46 ).

Shaft-Mounted Fluid Transfer Assembly for a Disosable Bioreactor

A fluid transfer assembly for single use bioreactors includes a fluid transfer housing that can be mounted to the impeller shaft using a bearing that places the fluid transfer assembly directly below the lowest impeller but allows the impeller shaft to spin inside independently of the fluid transfer assembly. A fluid conduit connects the fluid transfer housing to a port in the single use bag wall which allows fluids to be introduced into the sparger and which also helps prevent the fluid transfer assembly from rotating with the impeller shaft. 1. A fluid transfer assembly for a disposable bioreactor comprising:a fluid transfer housing having a housing body defining an input port, at least one outlet port and an elongate housing passageway extending in fluid communication therebetween;said housing body further defining an open shaft passageway extending therethrough; anda rolling element bearing, such as a roller bearing or a ball bearing, affixed within said shaft passageway, said rolling element bearing comprising concentric inner and outer bearing races and a plurality of rolling elements, such as rollers or balls, positioned between the inner and outer bearing races, the outer bearing race being affixed to the housing body and the inner bearing race including an inner surface defining a shaft aperture such that the inner race is affixable to an impeller shaft so that the shaft may rotate independently of said housing body.2. The fluid transfer assembly of claim 1 , further comprising a plurality of outlet ports in fluid communication with said housing passageway.3. The fluid transfer assembly of claim 1 , wherein said housing body includes opposed first and second planar major surfaces and a perimetrical side wall extending between said first and second major surfaces.4. The fluid transfer assembly of claim 3 , wherein said input port is defined by said perimetrical side wall of said housing.5. The fluid transfer assembly of claim 3 , wherein said first major ...

Stirring blade and stirring device

교반장치에 구비된 교반축에 장착되는 교반날개로서, 교반축에 장착되는 판형상의 지지부와, 지지부의 바깥둘레 가장자리측에 배치된 복수의 블레이드부를 구비한다. 블레이드부는, 지지부의 일방의 면으로부터 돌출되는 제1 블레이드부와, 지지부의 타방의 면으로부터 돌출됨과 함께, 제1 블레이드부와는 비대칭이 되는 제2 블레이드부와, 제1 블레이드부와 제2 블레이드부 중 적어도 일방에 형성되는 개구부를 포함한다.

Stirred tank reactor

The invention relates to a stirred tank reactor for gas-liquid mass transfer in a slurry. The reactor includes a reactor tank ( 1 ) having a first volume (V 1 ), a drive shaft ( 2 ) that extends vertically in the reactor tank, a motor ( 3 ) for rotating the drive shaft ( 2 ), a main impeller ( 4 ) which is a downward pumping axial flow impeller attached to the drive shaft ( 2 ) to create a main flow pattern in the reactor tank, and a gas inlet ( 5 ) arranged to supply gas into the reactor tank ( 1 ) to be dispersed to the liquid. The reactor includes a mechanical gas sparging apparatus ( 6 ) comprising a dispersion chamber ( 7 ) having a second volume (V 2 ) which is substantially smaller than the first volume (V 1 ) of the reactor tank ( 1 ), the dispersion chamber being arranged coaxial with the drive shaft ( 2 ), and the gas inlet ( 5 ) being arranged to feed gas into the dispersion chamber ( 7 ), and mixing means ( 8, 9, 10, 11, 12 ) arranged within the dispersion chamber ( 7 ) for mixing the gas into liquid by dispersing the gas to fine bubbles before the bubbles enter the main flow pattern. The mixing power per unit volume inside the dispersion chamber ( 7 ) is significantly larger than the mixing power elsewhere in the reactor.

Aeration device

An aeration device includes a pipe, connection members and a first connection unit which is connected to the connection member. The first connection unit includes a first connector, a first connection part, a one-way member, a second connector, a turbine unit and a shell. When air enters into the pipe, the shell guides the air and liquid in the pound into the turbine unit via the second and third rooms so as to increase the mixing feature of the air and the liquid in the pound.

Gas injection method and apparatus

A method and apparatus for injecting a gas into a liquid in which a rotating helical impeller within a draft tube submerged in the liquid creates a liquid flow within the draft tube. Gas bubbles are injected into the draft tube either above or below or alongside the helical impeller or in all three locations. The liquid is drawn into the draft tube with a superficial velocity greater than a substantially uniform terminal ascent velocity of the gas bubbles to allow entrainment of undissolved gas bubbles in the bulk liquid into the liquid being drawn into the draft tube. The gas bubbles are injected with a uniform diameter of between about 10.0 microns and about 1.0 millimeters. The small bubble size enhances the dissolution of the gas into the liquid and also allow the entrainment of the gas into the liquid being drawn into the draft tube.

Aeration device for bioreactors

Aeration device for bioreactors with a first aeration element with gas outlet openings of a first size and with at least one second aeration element with gas outlet openings of a second size, the aeration elements being formed by a common housing with separate aeration channels.

Single-use mixing and bioreactor systems

Disclosed are magnetic agitation mixing systems for use with flexible container reaction vessels. In one aspect of the invention, the orientation of magnetic coupling between the impeller magnets and the external driver magnets is modified such that the coupling is neither strictly axial nor strictly radial. Also disclosed are “receiver-less” retainer configurations whereby the single-use container need not have a rigid base that defines a cup or post to engage of rotatable agitator.

Heat exchanger system with flexible bag

A heat exchanger system includes a heat exchanger having a body with a first side face and an opposing second side face, the body bounding a fluid channel disposed between the opposing side faces and extending between an inlet port and an outlet port. A flexible first bag has of one or more sheet of polymeric material and bounds a fluid pathway that extends between a fluid inlet and a fluid outlet. The first bag is removably retained against the first side face of the body of the heat exchanger, the fluid channel of the body of the heat exchanger being sealed from fluid communication with the fluid pathway of the first bag.

Gas injection method and apparatus

A method and apparatus for injecting a gas into a liquid in which a rotating helical impeller within a draft tube submerged in the liquid creates a liquid flow within the draft tube. Gas bubbles are injected into the draft tube either above or below or alongside the helical impeller or in all three locations. The liquid is drawn into the draft tube with a superficial velocity greater than a substantially uniform terminal ascent velocity of the gas bubbles to allow entrainment of undissolved gas bubbles in the bulk liquid into the liquid being drawn into the draft tube. The gas bubbles are injected with a uniform diameter of between about 10.0 microns and about 1.0 millimeters. The small bubble size enhances the dissolution of the gas into the liquid and also allow the entrainment of the gas into the liquid being drawn into the draft tube.

Vertical wheel bioreactors

A pneumatic bioreactor includes a vessel containing a fluid to be mixed and at least one mixing device driven by gas pressure. A first embodiment includes a floating impeller that rises and falls in the fluid as gas bubbles carry it upward to the surface where the gas is then vented, permitting the impeller to sink in the fluid. The floating impeller may be tethered to a second impeller with a flexible member and pulley. The mixing speed is controlled with electromagnets in the vessel acting upon magnetic material in the impeller or its guides. In another embodiment, floating pistons mix the fluid, pushing it through a mixing plate with one or more apertures. In a third embodiment, the mixing device is a rotating drum with bubble-catching blades and rotating mixing plates with apertures. The top of the vessel for these mixers may include a closed top and sterile filters.