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US3871624A - Mixing apparatus and method - Google Patents

Mixing apparatus and method Download PDF

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Publication number
US3871624A
US3871624A US254645A US25464572A US3871624A US 3871624 A US3871624 A US 3871624A US 254645 A US254645 A US 254645A US 25464572 A US25464572 A US 25464572A US 3871624 A US3871624 A US 3871624A
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Prior art keywords
mixing
elements
disposed
adjacent
flow
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US254645A
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Max Huber
Gerhard Schutz
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Sulzer AG
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Sulzer AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/30—Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
    • B01J19/305—Supporting elements therefor, e.g. grids, perforated plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
    • B01F25/4322—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa essentially composed of stacks of sheets, e.g. corrugated sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J15/00—Chemical processes in general for reacting gaseous media with non-particulate solids, e.g. sheet material; Apparatus specially adapted therefor
    • B01J15/005—Chemical processes in general for reacting gaseous media with non-particulate solids, e.g. sheet material; Apparatus specially adapted therefor in the presence of catalytically active bodies, e.g. porous plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J16/00—Chemical processes in general for reacting liquids with non- particulate solids, e.g. sheet material; Apparatus specially adapted therefor
    • B01J16/005—Chemical processes in general for reacting liquids with non- particulate solids, e.g. sheet material; Apparatus specially adapted therefor in the presence of catalytically active bodies, e.g. porous plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B01J2219/32206—Flat sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B01J2219/3221—Corrugated sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B01J2219/32213—Plurality of essentially parallel sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B01J2219/32237—Sheets comprising apertures or perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B01J2219/32255—Other details of the sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B01J2219/32265—Sheets characterised by the orientation of blocks of sheets
    • B01J2219/32268—Sheets characterised by the orientation of blocks of sheets relating to blocks in the same horizontal level
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32279—Tubes or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/324—Composition or microstructure of the elements
    • B01J2219/32408—Metal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/72—Packing elements

Definitions

  • At least one fluid medium is passed in uniflow relation through one or more filler elements comprising layers [52] US. Cl, 259/4 which contact one another and bound flow channels, [51] Int. Cl lBtllf 5/06 the longitudinal axes of the flow channels in each [58] Field of Search 259/4, 95, DIG. 30; layer extending substantially parallel to one another at 23/283, 29l; 261/101; 148/42, 43, 44, 45, 46 least in groups, the longitudinal axes of the flow channels in adjacent layers being inclined relatively to one [56] References Cited another, the flow channels of at least any two adjacent UNITED STATES PATENTS layers being at least partly open towards one another.
  • This invention relates to a mixing apparatus and method. More particularly, this invention relates to a mixing apparatus and method for the mixing of concurrent flows of at least one fluid medium.
  • the invention provides a mixing apparatus and method for fluid media which are directed to flow in a concurrent relation.
  • the apparatus utilizes at least one mixing element in the path of flow which serves to mix the various media together both under longitudinal and transverse mixing.
  • the fluid media may have uniform or different chemical composition and may also be nonhomogeneous in regard to temperature, velocity and so on.
  • Each mixing element includes a plurality of layers which contact each other and bound flow channels.
  • the longitudinal axes of the flow channels in each layer extend substantially parallel to one another at least in groups while the longitudinal axes of the flow channels in adjacent layers are inclined relatively to one another.
  • the flow channels of at least any two adjacent layers are at least partly open towards one another.
  • at least two adjacent mixing elements with the layers of adjacent elements are staggered angularly to one another, advantageously by 90, around the mixer longitudinal axis.
  • the fluid media experience one kind of mixing as a result of being compelled to flow through the flow channels in the layers. Since the flow channels of adjacent layers are at least partly open towards one another, the media also experience mixing by shear forces on those surfaces of the flow channels which contact one another. The shear forces detach boundary layers of the fluid media, particularly in the case of highly viscous liquids and turbulence is produced on the contact surfaces, so that the distribution of the media over the mixing element cross-section is further improved and very good mixing achieved.
  • a mixing element is formed of layers of flat thin plates to which flat thin guide elements disposed at an angle are connected, so that the flat thin plates bound the various flow channels on one side, and two parallel adjacent guide or deflector elements in each case bound the flow channels on two other sides.
  • the guiding or deflecting elements on a layer can have a herringbone pattern.
  • e:. ;h layer of the mixing element comprises a tube bank in which the tubes form the flow channels and contact one another longitudinally, the tubes of at least any two adjacent tube banks may communicate with one another by way of apertures.
  • Mixing elements according to the invention can be used with advantage in relatively large diameter, e.g., more than 50 millimeters (mm), mixers, e.g., in tubes or receptacles, since the good transverse mixing properties rapidly ensure uniform conditions in such mixers.
  • a mixer according to the invention can be used to improve, simultaneously'with and in addition to a rapid uniform mixing of the media flowing through the mixer in concurrent relation, a chemical reaction of the-fluid media which have been brought into contact with one another.
  • the channel-bounding layers themselves can be made of a catalyst material or to apply such a material to the layers.
  • fluid media is to be understood as denoting liquids, gases and their mixtures, low viscosity media, high-vicosity media and flowable solid particles.
  • the device can be flowed through, e.g., by one or more concurrent liquids, by gases and mixtures thereof, by a liquid and a gas or a liquid and a finely divided solid.
  • Catalytic reactions e.g., ammonia synthesis.
  • FIG. 1 illustrates a [mageiaem'constmctd of flat thin plates according to the invention
  • FIG. 2 illustrates a mixing element constructed of tubes according to the invention
  • FIG. 3 diagrammatically illustrates a view of a mixer constructed according to the invention to accommodate fluid media flows of varying supply rates
  • FIG. 4 diagrammatically illustrates a view of a mixer constructed in accordance with the invention to obtain axial mixing
  • FIG. 5a illustrates a cross-sectional view of a mixer element as shown in FIG. 1 wherein different layers have channels of different cross-section;
  • FIG. 5b illustrates a view similar to FIG. 5a wherein alternate layers have channels with different crosssection.
  • each mixing element is made of discrete layers of flat thin plates 20, e.g., of sheet metal while rows of spaced-apart parallel guide or deflector elements 21, e.g., in the form of metal strips are connected to the two major surfaces of the elements 20 at an angle, preferably a right-angle, to the plane of the elements 20.
  • the connection can be, for example, by welding or brazing.
  • adjacent layers of the mixing element are so disposed that the guide elements 21 contact one another at intersections, thus providing the same distribution in a mixing process as is provided by a mixing element shown in the US. Pat. No. 3,785,620, assigned to a common assignee.
  • each mixing element can also be constructed so that each layer 22 comprises a tube bank 23.
  • Each tube bank 23 includes tubes 24 which contact one another along their length and are angled to the longitudinal axis of the layers.
  • each tube 24 may be provided with apertures 25.
  • the tube axes of adjacent layers cooperate to include an angle, and the tubes 24 which define the flow channels communicate with one an other via the apertures 25.
  • a mixer having mixing elements of the kind shown in FIGS. 1 and 2 comprises at least two mixing elements, with the layers of adjacent elements being offset from one another around the mixer longitudinal axis by an angle, preferably a right-angle.
  • the cross-section of the rectangular flow channels (FIG. 1) or the tube diameter of the flow channels (FIG. 2) can be adapted to suit individual mixing requirements. For instance, if it is required to disperse in one another two low-viscosity liquids having a viscosity of, for example 1 to 5 centipoise, the operation is, with advantage, performed in mixing elements whose flow channels are relatively narrow so that the resulting shear forces are sufficient to distribute the fluid media but are not so strong that stable emulsions are produced.
  • Liquids having very different viscosities are very difficult to mix.
  • An example is the mixing of water, with a viscosity of I centipoise, with a flow of methyl cellulose, whose viscosity is I0 centipoise.
  • high water concentrations of, for example there is a tendency for the water to form its own flow channel and to flow virtually unmixed through the methyl cellulose introduced into the mixing element. The result is water break-through upon leaving the mixing element.
  • the main problem is the initial coarse distribution of the admixed water. If a coarse or rough .distribution can be performed rapidly, i.e., if the water can be distributed to a very large number of channels at the start of the mixing path, subsequent further reduction is facilitated and the risk of water breakthrough greatly reduced.
  • coarse distribution can be in relatively narrow channel mixing elements, but to ensure very reduced loss of pressure in the mixing elements, subsequent further homogenisation may be obtained in mixing elements having relatively large cross-section channels.
  • each volume element of the fluid media to be mixed stays in the mixing zone for about the same time. This behavior is required for a number of mixing problems.
  • a second tube 30 of smaller cross-section than the outer tube 26 and filled with mixing elements 29 is introduced into the free zones 28 between each two groups of elements 27.
  • the annular gap between the tubes 26 and 30 can be filled with mixing elements 29 while the central tube 30 is left open. Since the volume flows through the inner tube 30 and the empty annular gap are in inverse proportion to the corresponding pressure drops, the volume flows are displaced longitudinally in the mixer, and the same therefore provides the required axial mixing.
  • axial mixing can also be obtained by forming mixing elements, for example, of the kind shown in FIG. 1 with channels of different cross-sections.
  • the fluid media moves faster in the large cross-section flow channels than in the narrow cross-section flow channels. This also stretches the residence time distribution and thus leads to axial mixing in addition to thorough cross-mixing.
  • the channels of the centrally located layers as viewed have larger cross-sections than the laterally placed layers.
  • the layers are alternately provided with larger or smaller cross-sections of the channels.
  • a mixing apparatus comprising a first means for defining a passageway along a longitudinal axis thereof for the flow of at least one fluid medium therethrough;
  • each said element including a plurality of layers, each layer having a spaced apart flat thin plate and a plurality of flat guide elements disposed angularly on at least one side of said plate with adjacent ones of said guide elements being in spaced apart parallel relation to define flow channels therebetween, said guide elements being angularly disposed with respect to said guide elements of an adjacent layer,
  • each said mixing element being angularly offset to an adjacent mixing element about said longitudinal axis of siad means;
  • a mixing apparatus comprising a first means for defining a passageway along a longitudinal axis thereof for the flow of at least one fluid medium therethrough;
  • each said mixing element including a plurality of tube banks in contact with each other, each tube bank having a plurality of tubes disposed in contiguous relation and oriented in a different direction from said tubes of an adjacent tube bank, at least one of two sequentially arranged tube banks relative to the direction of media flow being disposed at an angle to said longitudinal axis of said means, and each said mixing element being angularly offset to an adjacent mixing element about said longitudinal axis of said means;
  • a mixing apparatus as set forth in claim 3 wherein said tubes are provided with apertures longitudinally thereof.
  • a mixing apparatus as set forth in claim 3 wherein said tubes of each tube bank are disposed in parallel planes and in intersecting relation to said tubes of an adjacent tube bank.
  • a mixing element comprising a plurality of layers, each layer having a spaced apart flat thin plate and a plurality of flat guide elements disposed angularly on at least one side of said plate with adjacent ones of said guide elements being in spaced apart parallel relation to define flow channels therebetween. said guide elements being angularly disposed with respect to said guide elements of an adjacent layer.
  • a mixing element comprising a plurality of tube banks in contact with each other, each tube bank having a plurality of tubes disposed in contiguous relation and oriented in a different direction from said tubes of an adjacent tube bank.
  • a mixing apparatus comprising a first tube
  • each mixing element includes a plurality of layers in contacting relation, each layer defining a plurality of flow channels having longitudinal axes extending in parallel at least in groups, said longitudinal axes of said flow channels in adjacent layers being inclined relative to each other, said flow channels of at least two adjacent layers being at least partly open towards each other.
  • a mixing element having a plurality of layers in contacting relation, each layer defining a plurality of flow channels having longitudinal axes extending in parallel, said axes of said flow channels in adjacent layers being inclined relative to each other, said flowchannels of at least two adjacent layers being at least partly open towards each other, a plurality of said layers having flow channels of different cross-section from others of said layers.
  • said mixing element including a plurality of rows of flat guide elements
  • each row being disposed in spaced apart parallel relation to each other to bound flow channels between adjacent ones of said guide elements
  • said elements in adjacent rows being disposed in angular relation and in contact with each other, said flow channels of at least two adjacent rows being at least partly open towards one another;
  • a mixing element for disposition in a passageway of a mixing apparatus for mixing a flow of at least one fluid medium under longitudinal and transverse mixing, said mixing element including a plurality of rows of flat guide elements,
  • said elements in each row being disposed in spaced apart parallel relation to each other to bound flow channels between adjacent ones of said guide elements
  • said elements in adjacent rows being disposed in angular relation and in contact with each other, said flow channels of at least two adjacent rows being at least partly open towards one another.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

At least one fluid medium is passed in uniflow relation through one or more filler elements comprising layers which contact one another and bound flow channels, the longitudinal axes of the flow channels in each layer extending substantially parallel to one another at least in groups, the longitudinal axes of the flow channels in adjacent layers being inclined relatively to one another, the flow channels of at least any two adjacent layers being at least partly open towards one another.

Description

o l t l Unite ttes atet 1 1 3,871,624
Huber et al. Mar. 18, 1975 [54] MllXllNG APPARATUS AND METHOD 3,466,151 9/1969 Sicard et al 23/283 X Inventors: Max Huber; Gerhard Schutz, both 3,664,638 5/l972 Grout et al. 259/4 Assigneez Sulzer Brothers Ltd. winterthur 78,782 7/1962 France 23/283 Switzerland Primary Examiner-Peter Feldman [22] Filed: May 18, 1972 Assistant Examiner-Alan Cantor Attorney, Agent, or Firml(enyon & Kenyon Reilly [2l] Appl. No.. 254,645 Carr & Chapin [30] Foreign Application Priority Data [57] ABSTRACT Jan. 24, 1972 Switzerland 000982/72 At least one fluid medium is passed in uniflow relation through one or more filler elements comprising layers [52] US. Cl, 259/4 which contact one another and bound flow channels, [51] Int. Cl lBtllf 5/06 the longitudinal axes of the flow channels in each [58] Field of Search 259/4, 95, DIG. 30; layer extending substantially parallel to one another at 23/283, 29l; 261/101; 148/42, 43, 44, 45, 46 least in groups, the longitudinal axes of the flow channels in adjacent layers being inclined relatively to one [56] References Cited another, the flow channels of at least any two adjacent UNITED STATES PATENTS layers being at least partly open towards one another.
3,286,992 1 1/1966 Armendiades et a1 259/4 16 Claims, 6 Drawing Figures MIXING APPARATUS AND METHOD This invention relates to a mixing apparatus and method. More particularly, this invention relates to a mixing apparatus and method for the mixing of concurrent flows of at least one fluid medium.
It is an object of the invention to provide a mixer with mixing elements of simple, relatively inexpensive construction.
It is another object of the invention to obtain ready adaption of a mixing element in a mixer to any specific mixing problem without regard to the diameter or length of the mixer.
It is another object of the invention to obtain axial mixing of fluid media in a mixer utilizing filler elements having criss-cross flow passages.
It is another object of the invention to obtain uniform mixing of fluid media introduced at different rates into a mixer.
Briefly, the invention provides a mixing apparatus and method for fluid media which are directed to flow in a concurrent relation. The apparatus utilizes at least one mixing element in the path of flow which serves to mix the various media together both under longitudinal and transverse mixing. The fluid media may have uniform or different chemical composition and may also be nonhomogeneous in regard to temperature, velocity and so on. Each mixing element includes a plurality of layers which contact each other and bound flow channels. The longitudinal axes of the flow channels in each layer extend substantially parallel to one another at least in groups while the longitudinal axes of the flow channels in adjacent layers are inclined relatively to one another. In addition, the flow channels of at least any two adjacent layers are at least partly open towards one another. Advantageously, to achieve substantially uniform mixing over the whole cross-section of the mixer, at least two adjacent mixing elements with the layers of adjacent elements are staggered angularly to one another, advantageously by 90, around the mixer longitudinal axis.
In the mixing elements according to the invention, the fluid media experience one kind of mixing as a result of being compelled to flow through the flow channels in the layers. Since the flow channels of adjacent layers are at least partly open towards one another, the media also experience mixing by shear forces on those surfaces of the flow channels which contact one another. The shear forces detach boundary layers of the fluid media, particularly in the case of highly viscous liquids and turbulence is produced on the contact surfaces, so that the distribution of the media over the mixing element cross-section is further improved and very good mixing achieved.
In one embodiment, a mixing element is formed of layers of flat thin plates to which flat thin guide elements disposed at an angle are connected, so that the flat thin plates bound the various flow channels on one side, and two parallel adjacent guide or deflector elements in each case bound the flow channels on two other sides. For instance, the guiding or deflecting elements on a layer can have a herringbone pattern.
In another embodiment, e:. ;h layer of the mixing element comprises a tube bank in which the tubes form the flow channels and contact one another longitudinally, the tubes of at least any two adjacent tube banks may communicate with one another by way of apertures.
Mixing elements according to the invention can be used with advantage in relatively large diameter, e.g., more than 50 millimeters (mm), mixers, e.g., in tubes or receptacles, since the good transverse mixing properties rapidly ensure uniform conditions in such mixers.
If required, a mixer according to the invention can be used to improve, simultaneously'with and in addition to a rapid uniform mixing of the media flowing through the mixer in concurrent relation, a chemical reaction of the-fluid media which have been brought into contact with one another. In this case it is possible, if necessary, either for the channel-bounding layers themselves to be made of a catalyst material or to apply such a material to the layers.
The term fluid media is to be understood as denoting liquids, gases and their mixtures, low viscosity media, high-vicosity media and flowable solid particles. The device can be flowed through, e.g., by one or more concurrent liquids, by gases and mixtures thereof, by a liquid and a gas or a liquid and a finely divided solid.
Some of the problems which a mixer of this kind can help to solve are as follows:
a. Mixing of two liquids: Neutralization of an acid, e.g., the waste acid from pickling baths, by means of an alkali liquor. The plates or lamella can be made, e.g., of plastics.
b. Mixing a gas with a liquid: Hydrogenation processes, water chlorination or waste water aeration.
c. Mixing two gases: Oxygen and ammonia to produce nitric acid.
d. Catalytic reactions: e.g., ammonia synthesis.
e. Mixing highly viscous media: e.g., plastics, doughy media.
These and other objects and advantages of the invention will become more apparent from the following detaild description and appended claims taken in con junction with the accompanying drawings in which;
FIG. 1 illustrates a [mageiaem'constmctd of flat thin plates according to the invention;
FIG. 2 illustrates a mixing element constructed of tubes according to the invention;
FIG. 3 diagrammatically illustrates a view of a mixer constructed according to the invention to accommodate fluid media flows of varying supply rates;
FIG. 4 diagrammatically illustrates a view of a mixer constructed in accordance with the invention to obtain axial mixing;
FIG. 5a illustrates a cross-sectional view of a mixer element as shown in FIG. 1 wherein different layers have channels of different cross-section; and
FIG. 5b illustrates a view similar to FIG. 5a wherein alternate layers have channels with different crosssection.
Referring to FIG. 1 each mixing element is made of discrete layers of flat thin plates 20, e.g., of sheet metal while rows of spaced-apart parallel guide or deflector elements 21, e.g., in the form of metal strips are connected to the two major surfaces of the elements 20 at an angle, preferably a right-angle, to the plane of the elements 20. The connection can be, for example, by welding or brazing. As shown, adjacent layers of the mixing element are so disposed that the guide elements 21 contact one another at intersections, thus providing the same distribution in a mixing process as is provided by a mixing element shown in the US. Pat. No. 3,785,620, assigned to a common assignee.
Referring to FIG. 2, each mixing element can also be constructed so that each layer 22 comprises a tube bank 23. Each tube bank 23 includes tubes 24 which contact one another along their length and are angled to the longitudinal axis of the layers. Also, each tube 24 may be provided with apertures 25. As shown in the U.S. Pat. No. 3,785,620, where the corrugated sheets or the guide element of adjacent layers contact one another at intersections, the tube axes of adjacent layers cooperate to include an angle, and the tubes 24 which define the flow channels communicate with one an other via the apertures 25.-
Advantageously, a mixer having mixing elements of the kind shown in FIGS. 1 and 2, comprises at least two mixing elements, with the layers of adjacent elements being offset from one another around the mixer longitudinal axis by an angle, preferably a right-angle.
The cross-section of the rectangular flow channels (FIG. 1) or the tube diameter of the flow channels (FIG. 2) can be adapted to suit individual mixing requirements. For instance, if it is required to disperse in one another two low-viscosity liquids having a viscosity of, for example 1 to 5 centipoise, the operation is, with advantage, performed in mixing elements whose flow channels are relatively narrow so that the resulting shear forces are sufficient to distribute the fluid media but are not so strong that stable emulsions are produced.
For gas mixing, for example, mixing warm air and cool air in air conditioning the losses of heat in the mixer must be small so as to keep down fan or compressor power consumption. Since gas-mixing processes usually do not present anything like the same dificulties as liquid-mixing processes, mixing elements having flow channels of fairly large cross-section can be used. In addition to the gases being distributed in the mixing elementsv as a result of constrained guidance in the flow channels, mixing is further improved by the turbulence produced at the intersections of the flow channels of adjacent layers.
Liquids having very different viscosities are very difficult to mix. An example is the mixing of water, with a viscosity of I centipoise, with a flow of methyl cellulose, whose viscosity is I0 centipoise. With high water concentrations of, for example there is a tendency for the water to form its own flow channel and to flow virtually unmixed through the methyl cellulose introduced into the mixing element. The result is water break-through upon leaving the mixing element.
It has been found that the main problem is the initial coarse distribution of the admixed water. If a coarse or rough .distribution can be performed rapidly, i.e., if the water can be distributed to a very large number of channels at the start of the mixing path, subsequent further reduction is facilitated and the risk of water breakthrough greatly reduced. In this kind of mixing, coarse distribution can be in relatively narrow channel mixing elements, but to ensure very reduced loss of pressure in the mixing elements, subsequent further homogenisation may be obtained in mixing elements having relatively large cross-section channels.
The mixers hereinbefore described and shown in the drawings provide satisfactory cross-mixing but relatively little axial mixing, i.e., each volume element of the fluid media to be mixed stays in the mixing zone for about the same time. This behavior is required for a number of mixing problems.
However, in some cases it is advantageous to have some stretching of the residence time distribution for instance, in cases where the quantities of fluid media injected into mixers are not constant in time. For instance, a big problem in continuous mixing is accurate metering of the fluid media. If each volume element has the same residence time in the mixer, variations in metering are noticeable in the end product. It may therefore be desirable precisely in the case of metering difficulties for different volume particles to have different holdup times, for variations in dosage, which take the form of concentration variations in the mixer, are stretched in time and compensated.
Referring to FIG. 3, in order to extend the reside time distribution a number of mixing elements 27, e.g., of the kind shown in FIGS. 1 or 2, are arranged in spaced apart groups in an outer tube 26 of a mixer to define free zones 28 therebetween. A second tube 30 of smaller cross-section than the outer tube 26 and filled with mixing elements 29 is introduced into the free zones 28 between each two groups of elements 27. Of course, it is not necessary to enclose the mixing elements 29, within a tube. The annular gap between the tubes 26 and 30 can be filled with mixing elements 29 while the central tube 30 is left open. Since the volume flows through the inner tube 30 and the empty annular gap are in inverse proportion to the corresponding pressure drops, the volume flows are displaced longitudinally in the mixer, and the same therefore provides the required axial mixing.
Of course, when there is an axial flow in an empty tube the maximum velocity at the center of the tube is twice as great as the mean velocity. The result is a wide residence time distribution over tube cross-section. Consequently, and as shown in FIG. 4, a desired axial distribution can be provided by groups of mixing elements 31 alternating with empty tube portions 32.
Referring to FIGS. 5a and 5b, axial mixing can also be obtained by forming mixing elements, for example, of the kind shown in FIG. 1 with channels of different cross-sections. The fluid media moves faster in the large cross-section flow channels than in the narrow cross-section flow channels. This also stretches the residence time distribution and thus leads to axial mixing in addition to thorough cross-mixing. As shown in FIG. 5a, the channels of the centrally located layers as viewed, have larger cross-sections than the laterally placed layers. As shown in FIG. 5b, the layers are alternately provided with larger or smaller cross-sections of the channels.
What is claimed is:
l. A mixing apparatus comprising a first means for defining a passageway along a longitudinal axis thereof for the flow of at least one fluid medium therethrough;
at least two mixing elements disposed in said passageway for the flow of the medium therethrough, each said element including a plurality of layers, each layer having a spaced apart flat thin plate and a plurality of flat guide elements disposed angularly on at least one side of said plate with adjacent ones of said guide elements being in spaced apart parallel relation to define flow channels therebetween, said guide elements being angularly disposed with respect to said guide elements of an adjacent layer,
and each said mixing element being angularly offset to an adjacent mixing element about said longitudinal axis of siad means; and
means disposed on one side of said mixing element for introducing at least one fluid medium into said passageway to flow through said mixing elements for mixing therein.
2. A mixing apparatus as set forth in claim 1 wherein said guide elements of one layer are disposed in intersecting relation to said guide elements of an adjacent layer.
3. A mixing apparatus comprising a first means for defining a passageway along a longitudinal axis thereof for the flow of at least one fluid medium therethrough;
at least two mixing elements disposed in said passage for the flow of the media therethrough, each said mixing element including a plurality of tube banks in contact with each other, each tube bank having a plurality of tubes disposed in contiguous relation and oriented in a different direction from said tubes of an adjacent tube bank, at least one of two sequentially arranged tube banks relative to the direction of media flow being disposed at an angle to said longitudinal axis of said means, and each said mixing element being angularly offset to an adjacent mixing element about said longitudinal axis of said means; and
means disposed on one side of said mixing elements for introducing at least one fluid medium into said passageway to flow through said packing element for mixing therein.
4. A mixing apparatus as set forth in claim 3 wherein said tubes are provided with apertures longitudinally thereof.
5. A mixing apparatus as set forth in claim 3 wherein said tubes of each tube bank are disposed in parallel planes and in intersecting relation to said tubes of an adjacent tube bank.
6. A mixing element comprising a plurality of layers, each layer having a spaced apart flat thin plate and a plurality of flat guide elements disposed angularly on at least one side of said plate with adjacent ones of said guide elements being in spaced apart parallel relation to define flow channels therebetween. said guide elements being angularly disposed with respect to said guide elements of an adjacent layer.
7. A mixing element as set forth in claim 6 wherein said guide elements of one layer are disposed in intersecting relation to said guide elements of an adjacent layer.
8. A mixing element comprising a plurality of tube banks in contact with each other, each tube bank having a plurality of tubes disposed in contiguous relation and oriented in a different direction from said tubes of an adjacent tube bank.
9. A mixing element as set forth in claim 8 wherein said tubes of each tube bank are disposed in parallel planes and in intersecting relation to said tubes of an adjacent tube bank.
10. A mixing element as set forth in claim 8 wherein said tubes are provided with apertures longitudinally thereof.
11. A mixing apparatus comprising a first tube;
at least two groups of mixing elements disposed in said first tube for mixing fluid media flowing therethrough together, said groups of mixing elements being spaced from each other;
' at least one second tube of smaller cross-section than said first tube disposed in said first tube between said groups of mixing elements to define an annular gap with said first tube;
a plurality of mixing elements disposed between said groups of mixing elements selectively in one of said second tube and said gap for mixing fluid media flowing therethrough together whereby fluid media passing from one of said groups of mixing elements is axially mixed with fluid media passing from said plurality of mixing elements upon entering the other of said groups of mixing elements.
12. A mixing apparatus as set forth in claim lll wherein each mixing element includes a plurality of layers in contacting relation, each layer defining a plurality of flow channels having longitudinal axes extending in parallel at least in groups, said longitudinal axes of said flow channels in adjacent layers being inclined relative to each other, said flow channels of at least two adjacent layers being at least partly open towards each other.
13. A mixing apparatus as set forth in claim 12 wherein a plurality of said layers have flow channels of different cross-section from other of said layers.
14. A mixing element having a plurality of layers in contacting relation, each layer defining a plurality of flow channels having longitudinal axes extending in parallel, said axes of said flow channels in adjacent layers being inclined relative to each other, said flowchannels of at least two adjacent layers being at least partly open towards each other, a plurality of said layers having flow channels of different cross-section from others of said layers.
15. In a mixing apparatus,
a first means for defining a passageway along a longitudinal axis for the flow of at least one fluid medium therethrough;
at least one mixing element in said passageway for mixing the flow of fluid medium under longitudinal and transverse mixing, said mixing element including a plurality of rows of flat guide elements,
said elements in each row being disposed in spaced apart parallel relation to each other to bound flow channels between adjacent ones of said guide elements,
said elements in adjacent rows being disposed in angular relation and in contact with each other, said flow channels of at least two adjacent rows being at least partly open towards one another; and
means disposed on one side of said mixing element for introducing at least one fluid medium into said passageway to flow through said mixing elements for mixing therein.
16. A mixing element for disposition in a passageway of a mixing apparatus for mixing a flow of at least one fluid medium under longitudinal and transverse mixing, said mixing element including a plurality of rows of flat guide elements,
said elements in each row being disposed in spaced apart parallel relation to each other to bound flow channels between adjacent ones of said guide elements, and
said elements in adjacent rows being disposed in angular relation and in contact with each other, said flow channels of at least two adjacent rows being at least partly open towards one another.

Claims (16)

1. A mixing apparatus comprising a first means for defining a passageway along a longitudinal axis thereof for the flow of at least one fluid medium therethrough; at least two mixing elements disposed in said passageway for the flow of the medium therethrough, each said element including a plurality of layers, each layer having a spaced apart flat thin plate and a plurality of flat guide elements disposed angularly on at least one side of said plate with adjacent ones of said guide elements being in spaced apart parallel relation to define flow channels therebetween, said guide elements being angularly disposed with respect to said guide elements of an adjacent layer, and each said mixing element being angularly offset to an adjacent mixing element about said longitudinal axis of siad means; and means disposed on one side of said mixing element for introducing at least one fluid medium into said passageway to flow through said mixing elements for mixing therein.
2. A mixing apparatus as set forth in claim 1 wherein said guide elements of one layer are disposed in intersecting relation to said guide elements of an adjacent layer.
3. A mixing apparatus comprising a first means for defining a passageway along a longitudinal axis thereof for the flow of at least one fluid medium therethrough; at least two mixing elements disposed in said passage for the flow of the media therethrough, each said mixing element including a plurality of tube banks in contact with each other, each tube bank having a plurality of tubes disposed in contiguous relation and oriented in a different direction from said tubes of an adjacent tube bank, at least one of two sequentially arranged tube banks relative to the direction of media flow being disposed at an angle to said longitudinal axis of said means, and each said mixing element being angularly offset to an adjacent mixing element about said longitudinal axis of said means; and means disposed on one side of said mixing elements for introducing at least one fluid medium into said passageway to flow through said packing element for mixing therein.
4. A mixing apparatus as set forth in claim 3 wherein said tubes are provided with apertures longitudinally thereof.
5. A mixing apparatus as set forth in claim 3 wherein said tubes of each tube bank are disposed in parallel planes and in intersecting relation to said tubes of an adjacent tube bank.
6. A mixing element comprising a plurality of layers, each layer having a spaced apart flat thin plate and a plurality of flat guide elements disposed angularly on at least one side of said plate with adjacent ones of said guide elements being in spaced apart parallel relation to define flow channels therebetween. said guide elements being angularly disposed with respect to said guide elements of an adjacent layer.
7. A mixing element as set forth in claim 6 wherein said guide elements of one layer are disposed in intersecting relation to said guide elements of an adjacent layer.
8. A mixing element comprising a plurality of tube banks in contact with each other, each tube bank having a plurality of tubes disposed in contiguous relation and oriented in a different direction from said tubes of an adjacent tube bank.
9. A mixing element as set forth in claim 8 wherein said tubes of each tube bank are disposed in parallel planes and in intersecting relation to said tubes of an adjacent tube bank.
10. A mixing element as set forth in claim 8 wherein said tubes are provided with apertures longitudinally thereof.
11. A mixing apparatus comprising a first tube; at least two groups of mixing elements disposed in said first tube for mixing fluid media flowing therethrough together, said groups of mixing elements being spaced from each other; at least one second tube of smaller cross-section than said first tube disposed in said first tube between said groups of mixing elements to define an annular gap with said first tube; a plurality of mixing elements disposed between said groups of mixing elements selectively in one of said second tube and said gap for mixing fluid media flowing therethrough together whereby fluid media passing from one of said groups of mixing elements is axially mixed with fluid media passing from said plurality of mixing elements upon entering the other of said groups of mixing elements.
12. A mixing apparatus as set forth in claim 11 wherein each mixing element includes a plurality of layers in contacting relation, each layer defining a plurality of flow channels having longitudinal axes extending in parallel at least in groups, said longitudinal axes of said flow channels in adjacent layers being inclined relative to each other, said flow channels of at least two adjacent layers being at least partly open towards each other.
13. A mixing apparatus as set forth in claim 12 wherein a plurality of said layers have flow channels of different cross-section from other of said layers.
14. A mixing element having a plurality of layers in contacting relation, each layer defining a plurality of flow channels having longitudinal axes extending in parallel, said axes of said flow channels in adjacent layers being inclined relative to each other, said flow-channels of at least two adjacent layers being at least partly open towards each other, a plurality of said layers having flow channels of different cross-section from others of said layers.
15. In a mixing apparatus, a first means for defining a passageway along a longitudinal axis for the flow of at least one fluid medium therethrough; at least one mixing element in said passageway for mixing the flow of fluid medium under longitudinal and transverse mixing, said mixing element including a plurality of rows of flat guide elements, said elements in each row being disposed in spaced apart parallel relation to each other to bound flow channels between adjacent ones of said guide elements, said elements in adjacent rows being disposed in angular relation and in contact with each other, said flow channels of at least two adjacent rows being at least partly open towards one another; and means disposed on one side of said mixing element for introducing at least one fluid medium into said passageway to flow through said mixing elements for mixing therein.
16. A mixing element for disposition in a passageway of a mixing apparatus for mixing a flow of at least one fluid medium under longitudinal and transverse mixing, said mixing element including a plurality of rows of flat guide elements, said elements in each row being disposed in spaced apart parallel relation to each other to bound flow channels between adjacent ones of said guide elements, and said elements in adjacent rows being disposed in angular relation and in contact with each other, said flow channels of at least two adjacent rows being at least partly open towards one another.
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Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111402A (en) * 1976-10-05 1978-09-05 Chemineer, Inc. Motionless mixer
FR2415661A1 (en) * 1978-01-25 1979-08-24 Merck & Co Inc USE OF A SURFACE OR NON-MOVEMENT MIXER AS A CELL CULTURE PROPAGATOR
US4170446A (en) * 1976-04-29 1979-10-09 Sulzer Brothers Limited Plastics-processing machine
FR2425888A1 (en) * 1978-05-20 1979-12-14 Sulzer Ag INTERNAL STATIC OR DYNAMIC MIXER ELEMENT
US4213403A (en) * 1977-05-20 1980-07-22 Sulzer Brothers Limited Incineration plant
US4259024A (en) * 1978-05-09 1981-03-31 Heinrich Clasen Device for mixing flowable materials
US4296204A (en) * 1978-01-25 1981-10-20 Merck & Co., Inc. Use of motionless mixer as cell culture propagator
DE3136138A1 (en) * 1980-10-01 1982-04-29 MTA Müszaki Kémiai Kutató Intézet, Veszprém Process and apparatus for the continuous dissolution or digestion and further processing of the aluminium content of aluminium-containing raw materials by the Bayer process
EP0070917A1 (en) * 1981-07-30 1983-02-09 GebràœDer Sulzer Aktiengesellschaft Column for mass-and/or heat transfer-processes
EP0070921A1 (en) * 1981-07-30 1983-02-09 GebràœDer Sulzer Aktiengesellschaft Installation element for an apparatus for mass transfer, direct heat exchange and mixing
US4374542A (en) * 1977-10-17 1983-02-22 Bradley Joel C Undulating prismoid modules
US4415670A (en) * 1980-07-07 1983-11-15 Merck & Co., Inc. Motionless mixer as cell culture propagator
US4436679A (en) 1981-11-09 1984-03-13 Maryland Cup Corporation Method and apparatus for generating foamed thermoplastic materials
US4514092A (en) * 1983-05-04 1985-04-30 Burlington Industries, Inc. Automated sizing system controlling
US4519899A (en) * 1982-12-13 1985-05-28 Sulzer-Escher Wyss Ltd. Purification of oil using a jet pump mixer
US4595546A (en) * 1983-11-14 1986-06-17 Crompton & Knowles Corporation Manufacture of elongated extruded cross-linked products
US4605310A (en) * 1983-05-04 1986-08-12 Burlington Industries, Inc. Automated sizing system controlling using a radio transmitter level control
US4731229A (en) * 1985-05-14 1988-03-15 Sulzer Brothers Limited Reactor and packing element for catalyzed chemical reactions
US4848920A (en) * 1988-02-26 1989-07-18 Husky Injection Molding Systems Ltd. Static mixer
US5250234A (en) * 1992-10-08 1993-10-05 Koch Engineering Company, Inc. Liquid distributor apparatus and method for high viscosity liquids
US5404913A (en) * 1992-12-15 1995-04-11 Gilligan; Michael Fuel reduction device
US5407274A (en) * 1992-11-27 1995-04-18 Texaco Inc. Device to equalize steam quality in pipe networks
US5437784A (en) * 1993-05-03 1995-08-01 J. M. Voith Gmbh Injector for a flotation device
US5476783A (en) * 1992-03-23 1995-12-19 Koch Engineering Company, Inc. Bioreactor method of culturing and propagating cells with a woven motionless mixing element
US5605399A (en) * 1995-10-17 1997-02-25 Komax Systems, Inc. Progressive motionless mixer
US5636981A (en) * 1994-05-19 1997-06-10 Lilly Engineering Company Fuel oil burner
US5709468A (en) * 1992-11-27 1998-01-20 Texaco Group, Inc. Method for equalizing steam quality in pipe networks
US6019092A (en) * 1997-05-17 2000-02-01 Fuelsaver Overseas Limited Fuel conditioning device
US6321998B1 (en) * 1995-11-06 2001-11-27 Bayer Aktiengesellschaft Method of producing dispersions and carrying out of chemical reactions in the disperse phase
US6412975B1 (en) * 1998-08-20 2002-07-02 Bayer Aktiengesellschaft Static mixer
US6422738B2 (en) * 1998-09-25 2002-07-23 Man Nutzfahrzeuge Ag Compact cross-channel mixer
US6615507B2 (en) * 2000-06-19 2003-09-09 Balcke-Durr Energietechnik Gmbh Mixer for mixing gases and other newton liquids
US20040218469A1 (en) * 2003-05-03 2004-11-04 Husky Injection Molding Systems Ltd Static mixer and a method of manufacture thereof
US6976508B2 (en) * 2001-01-17 2005-12-20 Trojan Technologies Inc. Flow diffusers in a UV pressurized reactor
US20070263486A1 (en) * 2006-05-15 2007-11-15 Sulzer Chemtech Ag Static mixer
US20170056846A1 (en) * 2014-05-09 2017-03-02 Dow Global Technologies Llc Static mixer

Families Citing this family (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH563802A5 (en) * 1973-04-18 1975-07-15 Sulzer Ag
CH595516A5 (en) * 1975-07-23 1978-02-15 Sulzer Ag
DE2642105C2 (en) * 1976-09-18 1983-01-05 Fryma-Maschinen AG, 4310 Rheinfelden Static mixer
CH611178A5 (en) * 1976-12-03 1979-05-31 Sulzer Ag Process for manufacturing a stack for a static mixing device
HU175820B (en) * 1977-04-27 1980-10-28 Richter Gedeon Vegyeszet Charge, mainly in equipments for contacting gaseous and liquid media
CH618006A5 (en) * 1977-05-12 1980-06-30 Sulzer Ag
CH617357A5 (en) * 1977-05-12 1980-05-30 Sulzer Ag
US4207202A (en) * 1978-06-05 1980-06-10 Cole Howard W Jr Apparatus for making small bubble foam
US4225540A (en) * 1979-04-10 1980-09-30 Carl Munters-Euroform Packing for heat and material exchange, particularly for cooling towers
US4333894A (en) * 1980-01-10 1982-06-08 Veb Chemieanlagenbaukombinat Leipzig-Grimma Mass-transfer column
US4303600A (en) * 1981-01-08 1981-12-01 The Munters Corporation Reactor column
US4471014A (en) * 1981-06-30 1984-09-11 Atomic Energy Of Canada Limited Ordered bed packing module
CH647162A5 (en) * 1981-07-17 1985-01-15 Sulzer Ag DEVICE FOR LIQUID-SOLID FLUID FILMS.
JPS5946484A (en) * 1982-06-18 1984-03-15 ロルフ・ピ−・シ−・マントイフエル Method and apparatus for mass transfer and/or heat exchange and/or mixing between gaseous phase, liquid phase, and/or between them
DE3234796C2 (en) * 1982-09-20 1986-11-13 Dr. Goldberg & Partner Umwelttechnik GmbH, 8000 München Method and device for separating gaseous pollutants from flue gases by means of dust-like additives
CH660308A5 (en) * 1983-03-01 1987-04-15 Sulzer Ag DEVICE FOR DISTRIBUTING LIQUID IN A FABRIC AND HEAT EXCHANGE COLUMN.
FR2548043A1 (en) * 1983-06-14 1985-01-04 Saint Gobain Vitrage METHOD AND DEVICE FOR CASTING MANUFACTURE OF TRANSPARENT OPTICALLY HOMOGENEOUS LAYER FROM COMPONENT MIXTURE
US4597916A (en) * 1983-06-21 1986-07-01 Glitsch, Inc. Method of and apparatus for intermediate lamella vapor liquid contact
EP0300506B1 (en) * 1983-06-21 1995-06-14 Glitsch, Inc. Tower packing from corrugated metal sheets
BR8403035A (en) * 1983-06-21 1985-05-28 Glitsch PERFECTED TOWER FILLING GRID AND PERFECTED PROCESS TO PERFORM THE STEAM AND LIQUID CONTACT
US4604247A (en) * 1983-06-21 1986-08-05 Glitsch, Inc. Tower packing material and method
DE3400280C1 (en) * 1984-01-05 1985-03-14 Reinhardt-Technik Gmbh & Co, 5883 Kierspe Dosing and mixing device for highly viscous two-component materials
US4599174A (en) * 1984-02-27 1986-07-08 Polybac Corporation Submerged fixed film biological treatment system
JPS60179101A (en) * 1984-02-28 1985-09-13 Ngk Insulators Ltd Porous body for contacting with fluid
DE3414267A1 (en) * 1984-04-14 1985-11-07 Raschig Gmbh, 6700 Ludwigshafen INSTALLATION ELEMENT FOR TUBE OR HEAT EXCHANGE COLUMN
CH664091A5 (en) * 1985-01-30 1988-02-15 Sulzer Ag PACKING BODY MADE OF THIN, FILM-LIKE MATERIAL FOR FABRIC AND HEAT EXCHANGE COLUMNS BETWEEN LIQUID AND GASEOUS PHASES.
DE3520555A1 (en) * 1985-06-07 1986-12-11 H.P. + H.P. Chemie-Stellglieder GmbH, 4156 Willich QUIET CONTROL VALVE
US4670196A (en) * 1985-09-05 1987-06-02 Norton Company Tower packing element
CH670573A5 (en) * 1985-11-22 1989-06-30 Sulzer Ag
US4842778A (en) * 1985-12-23 1989-06-27 Glitsch, Inc. Apparatus for flow distribution in packed towers
CH669829A5 (en) * 1986-03-20 1989-04-14 Sulzer Ag
US4919541A (en) * 1986-04-07 1990-04-24 Sulzer Brothers Limited Gas-liquid mass transfer apparatus and method
US4978365A (en) * 1986-11-24 1990-12-18 Canadian Occidental Petroleum Ltd. Preparation of improved stable crude oil transport emulsions
US4983319A (en) * 1986-11-24 1991-01-08 Canadian Occidental Petroleum Ltd. Preparation of low-viscosity improved stable crude oil transport emulsions
US5283001A (en) * 1986-11-24 1994-02-01 Canadian Occidental Petroleum Ltd. Process for preparing a water continuous emulsion from heavy crude fraction
US4725287A (en) * 1986-11-24 1988-02-16 Canadian Occidental Petroleum, Ltd. Preparation of stable crude oil transport emulsions
US4950430A (en) * 1986-12-01 1990-08-21 Glitsch, Inc. Structured tower packing
US5156652A (en) * 1986-12-05 1992-10-20 Canadian Occidental Petroleum Ltd. Low-temperature pipeline emulsion transportation enhancement
EP0279159B2 (en) * 1987-01-19 1995-07-05 Emitec Gesellschaft für Emissionstechnologie mbH Metallic catalyst support body made of two different layers of corrugated iron
US4929399A (en) * 1988-03-17 1990-05-29 Union Carbide Industrial Gases Technology Inc. Structured column packing with liquid holdup
US4865460A (en) * 1988-05-02 1989-09-12 Kama Corporation Static mixing device
USRE34255E (en) * 1988-05-02 1993-05-18 Krup Corporation Static mixing device
US4966235A (en) * 1988-07-14 1990-10-30 Canadian Occidental Petroleum Ltd. In situ application of high temperature resistant surfactants to produce water continuous emulsions for improved crude recovery
CH676799A5 (en) * 1988-11-01 1991-03-15 Sulzer Ag
JP3096302B2 (en) * 1989-12-11 2000-10-10 ゲブリユーダー ズルツアー アクチエンゲゼルシヤフト Heterogeneous reaction type reactor and reactor catalyst
US5013492A (en) * 1990-04-06 1991-05-07 Munters Corporation Arrangement for contact bodies for liquid and gas
US5139544A (en) * 1990-10-22 1992-08-18 Koch Engineering Company, Inc. Gas-liquid contact column with improved mist eliminator and method
US5080836A (en) * 1990-11-27 1992-01-14 Glitsch, Inc. Tower packing with small and large louvers
US5188773A (en) * 1990-11-27 1993-02-23 Glitsch, Inc. Tower packing with small and large louvers and mixing method
US5057250A (en) * 1990-11-27 1991-10-15 Glitsch, Inc. Tower packing with small louvers
US5185106A (en) * 1990-11-27 1993-02-09 Glitsch, Inc. Tower packing with small louvers and mixing method
US5132056A (en) * 1991-05-28 1992-07-21 Union Carbide Industrial Gases Technology Corporation Structured column packing with improved turndown and method
EP0526392B1 (en) * 1991-07-30 1995-11-15 Sulzer Chemtech AG Mixing-in device for small amounts of fluid
GB9217933D0 (en) * 1992-08-22 1992-10-07 Melhuish Roger Mixing device and related method
DE69409264T2 (en) * 1993-01-13 1998-09-03 Kansai Electric Power Co Device for carrying out a gas-liquid contact
EP0693025B1 (en) * 1993-04-08 1997-07-16 Christopher Green Mixing apparatus and method
JP3319174B2 (en) * 1994-09-19 2002-08-26 株式会社日立製作所 Packing and air separation equipment
US5816317A (en) * 1996-08-16 1998-10-06 Caldyn, Inc. Apparatus for heat transfer from dust laden gases to fluids
US5876638A (en) * 1996-05-14 1999-03-02 Air Products And Chemicals, Inc. Structured packing element with bi-directional surface texture and a mass and heat transfer process using such packing element
US5730000A (en) * 1996-05-14 1998-03-24 Air Products And Chemicals, Inc. Structured packing element and a mass and heat transfer process using such packing element
US6089549A (en) * 1997-09-25 2000-07-18 Koch-Glitsch, Inc. Exchange column structured packing bed having packing bricks
DE19813600A1 (en) * 1998-03-27 1999-09-30 Bayer Ag Static disc mixer
US6186223B1 (en) 1998-08-27 2001-02-13 Zeks Air Drier Corporation Corrugated folded plate heat exchanger
US6244333B1 (en) 1998-08-27 2001-06-12 Zeks Air Drier Corporation Corrugated folded plate heat exchanger
US6565629B1 (en) * 1998-12-28 2003-05-20 Nippon Sanso Corporation Vapor-liquid contactor, cryogenic air separation unit and method of gas separation
US6503460B1 (en) 1999-03-17 2003-01-07 Kellogg Brown & Root, Inc. Staged catalyst regeneration in a baffled fluidized bed
DE19929765A1 (en) * 1999-06-29 2001-01-11 Siemens Ag Flue gas cleaning device
US6224654B1 (en) 1999-07-23 2001-05-01 Daniel Chawla Method for enhancement of duct removal out of chimney gases
DE10005663A1 (en) * 2000-02-09 2001-08-23 Basf Ag Manufacturing process for a catalyst pack, reactor with a catalyst pack and their use
US6517058B1 (en) * 2000-03-02 2003-02-11 Sandkuhl Clay Works, Inc. Fill packs for use in heat and mass transfer devices
CA2343538C (en) * 2000-05-08 2004-09-28 Sulzer Chemtech Ag Static mixer with profiled layers
US20030058737A1 (en) * 2001-09-25 2003-03-27 Berry Jonathan Dwight Mixer/flow conditioner
DE10159818A1 (en) * 2001-12-06 2003-07-10 Basf Ag Ordered packing for a reactor
US20050051916A1 (en) * 2003-09-08 2005-03-10 C.E. Shepherd Co., Inc. Cooling media pack
US7105036B2 (en) * 2003-12-08 2006-09-12 C. E. Shepherd Co., Inc. Drift eliminator, light trap, and method of forming same
US7566487B2 (en) * 2004-07-07 2009-07-28 Jonathan Jay Feinstein Reactor with primary and secondary channels
US7445715B2 (en) * 2004-11-22 2008-11-04 Entex Technologies Inc. System for treating wastewater and a controlled reaction-volume module usable therein
DE202005004859U1 (en) * 2005-03-26 2006-08-03 2H Kunststoff Gmbh Contact body for an evaporative humidifier or material exchanger for humidifying, cooling and / or purifying air
WO2006107206A2 (en) * 2005-04-06 2006-10-12 Stichting Voor De Technische Wetenschappen Inlet section for micro-reactor
USD672009S1 (en) 2009-11-02 2012-12-04 Entex Technologies Inc. Extruded media for supporting growth biology within a wastewater treating system
JP2008196479A (en) 2007-02-09 2008-08-28 Sulzer Chemtech Ag Exhaust gas cleaning system
US20080286177A1 (en) * 2007-05-18 2008-11-20 Tribute Creations, Llc Reactor with differentially distributed catalytic activity
PL2172442T3 (en) 2008-10-06 2017-07-31 Sulzer Chemtech Ag Method and device for separating carboxylic acids and/or carboxylic acid esters
US8568593B1 (en) 2009-06-02 2013-10-29 Entex Technologies, Inc. Anoxic system screen scour
EP2368625A1 (en) 2010-03-22 2011-09-28 Sulzer Chemtech AG Method and device for dispersion
US20110310697A1 (en) 2010-06-22 2011-12-22 Sebastian Hirschberg Dust mixing device
EP2801374A1 (en) 2013-05-08 2014-11-12 Sulzer Chemtech AG An apparatus for germ reduction of a fluid and a process for use thereof
US9956540B1 (en) 2015-03-31 2018-05-01 Gtc Technology Us Llc Structured packing with enhanced fluid-flow interface
RU2744373C1 (en) * 2019-09-24 2021-03-05 Ильдар Ринатович Вальшин Method for mixing medium transported through pipeline and device for carrying out said method
CN117683735B (en) * 2024-01-31 2024-04-26 广东永顺生物制药股份有限公司 Production process for improving yield of swine fever vaccine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286992A (en) * 1965-11-29 1966-11-22 Little Inc A Mixing device
US3466151A (en) * 1963-09-26 1969-09-09 Tissmetal Lionel Dupont Teste Fluid exchange column
US3664638A (en) * 1970-02-24 1972-05-23 Kenics Corp Mixing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR78782E (en) * 1960-12-03 1962-09-07 Contact and separation column packings
CH398503A (en) * 1962-07-31 1966-03-15 Sulzer Ag Mass transfer column

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466151A (en) * 1963-09-26 1969-09-09 Tissmetal Lionel Dupont Teste Fluid exchange column
US3286992A (en) * 1965-11-29 1966-11-22 Little Inc A Mixing device
US3664638A (en) * 1970-02-24 1972-05-23 Kenics Corp Mixing device

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170446A (en) * 1976-04-29 1979-10-09 Sulzer Brothers Limited Plastics-processing machine
US4111402A (en) * 1976-10-05 1978-09-05 Chemineer, Inc. Motionless mixer
US4213403A (en) * 1977-05-20 1980-07-22 Sulzer Brothers Limited Incineration plant
US4374542A (en) * 1977-10-17 1983-02-22 Bradley Joel C Undulating prismoid modules
FR2415661A1 (en) * 1978-01-25 1979-08-24 Merck & Co Inc USE OF A SURFACE OR NON-MOVEMENT MIXER AS A CELL CULTURE PROPAGATOR
US4296204A (en) * 1978-01-25 1981-10-20 Merck & Co., Inc. Use of motionless mixer as cell culture propagator
US4259024A (en) * 1978-05-09 1981-03-31 Heinrich Clasen Device for mixing flowable materials
FR2425888A1 (en) * 1978-05-20 1979-12-14 Sulzer Ag INTERNAL STATIC OR DYNAMIC MIXER ELEMENT
US4201482A (en) * 1978-05-20 1980-05-06 Bayer Aktiengesellschaft Perforated mixing elements for static and dynamic mixers
US4415670A (en) * 1980-07-07 1983-11-15 Merck & Co., Inc. Motionless mixer as cell culture propagator
DE3136138A1 (en) * 1980-10-01 1982-04-29 MTA Müszaki Kémiai Kutató Intézet, Veszprém Process and apparatus for the continuous dissolution or digestion and further processing of the aluminium content of aluminium-containing raw materials by the Bayer process
EP0070921A1 (en) * 1981-07-30 1983-02-09 GebràœDer Sulzer Aktiengesellschaft Installation element for an apparatus for mass transfer, direct heat exchange and mixing
EP0070917A1 (en) * 1981-07-30 1983-02-09 GebràœDer Sulzer Aktiengesellschaft Column for mass-and/or heat transfer-processes
US4744928A (en) * 1981-07-30 1988-05-17 Sulzer Brothers Limited Regular packing for countercurrent mass and direct heat transfer columns
US4436679A (en) 1981-11-09 1984-03-13 Maryland Cup Corporation Method and apparatus for generating foamed thermoplastic materials
US4519899A (en) * 1982-12-13 1985-05-28 Sulzer-Escher Wyss Ltd. Purification of oil using a jet pump mixer
US4514092A (en) * 1983-05-04 1985-04-30 Burlington Industries, Inc. Automated sizing system controlling
US4605310A (en) * 1983-05-04 1986-08-12 Burlington Industries, Inc. Automated sizing system controlling using a radio transmitter level control
US4595546A (en) * 1983-11-14 1986-06-17 Crompton & Knowles Corporation Manufacture of elongated extruded cross-linked products
US4731229A (en) * 1985-05-14 1988-03-15 Sulzer Brothers Limited Reactor and packing element for catalyzed chemical reactions
US4848920A (en) * 1988-02-26 1989-07-18 Husky Injection Molding Systems Ltd. Static mixer
US5476783A (en) * 1992-03-23 1995-12-19 Koch Engineering Company, Inc. Bioreactor method of culturing and propagating cells with a woven motionless mixing element
US5250234A (en) * 1992-10-08 1993-10-05 Koch Engineering Company, Inc. Liquid distributor apparatus and method for high viscosity liquids
US5407274A (en) * 1992-11-27 1995-04-18 Texaco Inc. Device to equalize steam quality in pipe networks
US5709468A (en) * 1992-11-27 1998-01-20 Texaco Group, Inc. Method for equalizing steam quality in pipe networks
US5404913A (en) * 1992-12-15 1995-04-11 Gilligan; Michael Fuel reduction device
US5437784A (en) * 1993-05-03 1995-08-01 J. M. Voith Gmbh Injector for a flotation device
US5636981A (en) * 1994-05-19 1997-06-10 Lilly Engineering Company Fuel oil burner
US5605399A (en) * 1995-10-17 1997-02-25 Komax Systems, Inc. Progressive motionless mixer
US6321998B1 (en) * 1995-11-06 2001-11-27 Bayer Aktiengesellschaft Method of producing dispersions and carrying out of chemical reactions in the disperse phase
US6019092A (en) * 1997-05-17 2000-02-01 Fuelsaver Overseas Limited Fuel conditioning device
US6412975B1 (en) * 1998-08-20 2002-07-02 Bayer Aktiengesellschaft Static mixer
US6422738B2 (en) * 1998-09-25 2002-07-23 Man Nutzfahrzeuge Ag Compact cross-channel mixer
US6615507B2 (en) * 2000-06-19 2003-09-09 Balcke-Durr Energietechnik Gmbh Mixer for mixing gases and other newton liquids
US6976508B2 (en) * 2001-01-17 2005-12-20 Trojan Technologies Inc. Flow diffusers in a UV pressurized reactor
US20040218469A1 (en) * 2003-05-03 2004-11-04 Husky Injection Molding Systems Ltd Static mixer and a method of manufacture thereof
US7198400B2 (en) * 2003-05-03 2007-04-03 Husky Injection Molding Systems Ltd. Static mixer and a method of manufacture thereof
US20070263486A1 (en) * 2006-05-15 2007-11-15 Sulzer Chemtech Ag Static mixer
US8061890B2 (en) * 2006-05-15 2011-11-22 Sulzer Chemtech Ag Static mixer
US20170056846A1 (en) * 2014-05-09 2017-03-02 Dow Global Technologies Llc Static mixer

Also Published As

Publication number Publication date
CS167981B2 (en) 1976-05-28
NL7205821A (en) 1972-10-31
AU4166972A (en) 1973-11-01
GB1373142A (en) 1974-11-06
CA987300A (en) 1976-04-13
CH537208A (en) 1973-07-13
US3785620A (en) 1974-01-15
PL87268B1 (en) 1976-06-30
FR2134377A1 (en) 1972-12-08
CA975355A (en) 1975-09-30
CH547120A (en) 1974-03-29
IT959596B (en) 1973-11-10
DE2205371A1 (en) 1972-11-16
DE2205371B2 (en) 1979-04-12
AU450762B2 (en) 1974-07-18
FR2134377B1 (en) 1976-08-06
DE2205371C3 (en) 1979-12-06

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