|Publication number||US3785620 A|
|Publication date||Jan 15, 1974|
|Filing date||Jun 2, 1971|
|Priority date||Apr 29, 1971|
|Also published as||CA975355A, CA975355A1, CA987300A, CA987300A1, DE2205371A1, DE2205371B2, DE2205371C3, US3871624|
|Publication number||US 3785620 A, US 3785620A, US-A-3785620, US3785620 A, US3785620A|
|Original Assignee||Sulzer Ag|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (94), Classifications (31)|
|External Links: USPTO, USPTO Assignment, Espacenet|
[451 Jan. 15,1974
United States Patent [191 Huber 3,286,992 11/1966 Armeniades............................ 259/4 MIXING APPARATUS AND METHOD FOREIGN PATENTS OR APPLICATIONS Switzerland Primary ExaminerBilly J. Wilhite  Flled: June 1971 Assistant Examiner-Alan 1. Cantor  Appl. No.1 149,230 Att0rneyKenyon & Kenyon Reilly Carr & Chapin Foreign Application Priority Data ABSTRACT Switzerland....1.................... 6303/71 1 7 9 9 2 r P A l. 0 3 .l.
M m 9m w "B5 l .Hm6 m D B5,. 9 m M3 98 mu mm 3 nm mur "Ha e s a 0 Std UhF ll] 2 8 555 [[1 gularly  A References Cited UNITED STATES PATENTS 3,466,151 9/1969 Sicard et 23/283 X 7 Claims, 7 Drawing Figures PMEMED JAN I 5W4 sum 2 or 2 QM w MIXING APPARATUS AND METHOD This invention relates to a mixing apparatus and method.
It is an object of the invention to obtain an efficient rapid mixing of one or more media in a relatively short distance.
It is another object of the invention to obtain efficient mixing of different mixable media.
It is another object of the invention to mix various media together in vessels of large cross-section while achieving a high degree of uniformity.
Briefly, the invention provides a mixing apparatus and method for media which are directed to flow in a uniflow relation. The apparatus utilizes packing elements in the path of flow which serves to mix the various media together both by longitudinal and transverse mixing. Each packing element includes a plurality of lamellas in contact with each other, each of which has corrugations thereon with the corrugations of sequentially arranged lamellas being oriented in different directions. In addition, the corrugations of at least one of two sequentially arranged lamellas relative to the direction of media flow are disposed at an angle to the axis of the apparatus. Also, the adjacent packing elements abut and are angularly offset to each other about the axis of theapparatus to enhance mixing.
The method effects the directing of two mixable media in a single flow direction through the above packing elements so as to achieve a longitudinally and transverse mixing of the part-flows of the media within the elements. This allows the media or mass to be uniformly mixed together or homogenized in a relatively short length.
The basis of the invention is the surprising recognition that the information of packing elements that are of themselves known for counterflow substanceinterchange columns, for example, rectification columns, into a mixing apparatus makes it possible to obtain excellent mixing together of fluid media passing through in uniflow. These media include two or more liquids or gases, or a number of gas mixtures, or a liquid with a gas. Also, very viscous media and particles of solid substances that are capable of flowing can be mixed.
The invention is particularly advantageous for mixing apparatus of relatively large diameter, e.g. more than 50 millimeters (mm) such as tubes or vessels, because, even in such contrivances, any lack of uniformity can be quickly corrected by the good transverse mixing achieved by the packing elements.
In one embodiment, perforations are provided at spaced apart positions in the lamellas in order to further improve the mixing effect since part-quantities of the fluid mediums are able to flow through a lamella from one side to the other.
Under certain conditions, it may also be advantageous to dispose an uncorrugated lamella between two corrugated lamella in a filler.
The mixing apparatus according to the invention can be used to carry out various processes such as:
a. For the mixing of two liquids: The neutralization of an acid, for example, a waste acid from pickling baths, by the aid of a lye. The lamella could, for example, consist of synthetic material.
b. For mixing a gas with a liquid: A hydrogenation process; or the chlorination of water.
c. For mixing two gases together: Oxygen and ammonia for producing nitric acid.
These and other objects and advantages of the invention will become more apparent from the following detailed description and appended claims taken in conjunction with the accompanying drawings in which:
FIG. 1 schematically illustrates a mixing apparatus with two superposed packing elements offset relative to one another;
FIGS. la and lb schematically illustrate views taken along lines la-la and lb-lb of FIG. 1 to show the orientation of the lamellas in vertically adjacent packing elements;
FIG. 2 illustrates a perspective view of the individual lamellas of a packing element;
FIG. 3a illustrates a lengthwise cross-sectional view of a packing element including a number of equally sized packing elements in contact with each other;
FIG. 3b illustrates a cross-sectional view of the packing element of FIG. 3a; and
FIG. 30 illustrates a perspective view of the packing element of FIGS. 30 and 3b.
Referring to FIG. I, the mixing apparatus has a cylindrical circular tube 1 for defining a passageway along a longitudinal axis. Alternatively, the tube 1 can be of any suitable cross-section, for example, square. Also, the tube 1 may be set either vertically or horizontally.
The tube 1 has a lower flange 2 for connecting to a pipe supplying a fluid medium a and an upper flange 3 for connecting to an outflow pipe for the mixture, or for the chemical compound c, whereby c is formed of the components a and a fluid medium b introduced into the mixing apparatus through a tube 4. In addition, two packing elements 5a, 5b are superposed in the tube 1 and are offset 90 relative to one another (see FIGS. 1a and lb).
Referring to FIG. 2, each packing element has corrugated lamellas 6 which adjoin one another to form the element. The element can then be pushed into the tube 1 of the mixing apparatus. As shown, different sizes of individual lamellas are used which increase from the two outsides toward the middle so that a cylindrical shape results. The lamellas, of which only four are shown accurately and the remainder schematically, are made of sheet metal, and are perforated at spaced apart positions to produce an improved mixing together of the fluid mediums in the packing element. In addition, the corrugations of each lamella are of substantially equal slope and the corrugations of adjacent lamellas are directed so that they intersect.
The dots of FIG. 1 show schematically the distribution of the medium b in the medium a within the mixing apparatus. In the case where the mixing apparatus is of very large diameter, it may be advantageous to make each packing element of a number of parts.
As shown, the packing elements 5a, 5b are adapted to the inner cross-section of the tube 1 of the mixing apparatus. Because each two adjacent packing elements 5a, 5b are offset relative to one another, preferably at an angle of 90, excellent distribution is produced and thereby excellent mixing together of the two fluid mediums passing in uniflow (i.e. concurrent) through the apparatus. If, in the case of certain mixing processes, there simultaneously occurs a chemical reaction, then because of the lateral mixing, any maldistribution or irregular course of reaction that might occur is compensated for.
Referring to FIGS. 3a, 3b and 3c, a packing element as described above can include a number of equally sized part packing elements in contact with each other as shown. The construction of each part packing element is similar to that described above.
The invention thus provides an apparatus in which two or more flowable media can be suitably mixed in longitudinal and transverse directions by directing the media part-flows in a plurality of criss-crossing zig-zag paths through the length of the packing elements. The mixing action obtained is such that a homogenous mixture is easily and rapidly obtained over a relatively short tube length.
It is also noted that, in the case of chemical reactions, the apparatus of the invention permits a considerable improvement in the heat transfer from the flowable media during reaction through the outer walls of the apparatus.
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 two mixable media therethrough in concurrent flow relation;
at least two packing elements disposed in said passageway for the flow of the media therethrough, each said packing element including a plurality of lamellas in contact with each other and in parallel relation to said longitudinal axis, each lamella having corrugations thereon with the corrugations of sequentially arranged lamellas being oriented in different directions and with the corrugations of at least one of two sequentially arranged lamellas relative to the direction of media flow being disposed at an angle to said longitudinal axis of said means, and each said packing element being angularly offset to an adjacent packing element about said longitudinal axis of said means at an angle not more than 90; and
means disposed on one side of said packing elements for introducing at least two mixable media into said passageway to flow through said packing elements in the same direction relative to said longitudinal axis for mixing therein.
2. A mixing apparatus as set forth in claim 1 wherein said corrugations of said lamellas are of substantially equal slope and said corrugations of adjacent lamellas are disposed in an intersecting direction.
3. A mixing apparatus as set forth in claim 1 wherein each packing element includes a number of equallysized part-packing elements in contact with each other.
4. A mixing apparatus as set forth in claim 1 wherein each said lamella is unperforated.
5. A mixing apparatus as set forth in claim 1 wherein each said lamella is made of a metal weave.
6. A mixing apparatus as set forth in claim 1 wherein each lamella has a plurality of spaced perforations therein for the passage of a flowable medium therethrough from one side to the opposite side.
7. A method of mixing at least two mixable media which comprises the steps of directing two mixable media in a concurrent flow direction through a common passageway, and passing the media into and through at least two packing elements within said passageway wherein each packing element includes a plurality of lamellas in contact with each other and in parallel relation to said flow direction, each lamella having corrugations thereon with the corrugations of sequentially arranged lamellas being oriented in different directions and with the corrugations of at least one of two sequentially arranged lamellas relative to the direction of media flow being disposed at an angle to the axis of flow, and each said packing element being angularly offset to an adjacent packing element about said axis of flow, the media being mixed within the packing elements.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3286992 *||Nov 29, 1965||Nov 22, 1966||Little Inc A||Mixing device|
|US3466151 *||Sep 22, 1964||Sep 9, 1969||Tissmetal Lionel Dupont Teste||Fluid exchange column|
|FR78782E *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3918688 *||Mar 27, 1974||Nov 11, 1975||Sulzer Ag||Static mixing device|
|US4186159 *||Oct 26, 1977||Jan 29, 1980||Sulzer Brothers Limited||Packing element of foil-like material for an exchange column|
|US4207202 *||Jun 5, 1978||Jun 10, 1980||Cole Howard W Jr||Apparatus for making small bubble foam|
|US4225540 *||Apr 10, 1979||Sep 30, 1980||Carl Munters-Euroform||Packing for heat and material exchange, particularly for cooling towers|
|US4296050 *||Oct 26, 1977||Oct 20, 1981||Sulzer Brothers Ltd.||Packing element for an exchange column|
|US4296204 *||Jul 7, 1980||Oct 20, 1981||Merck & Co., Inc.||Use of motionless mixer as cell culture propagator|
|US4303600 *||Jan 8, 1981||Dec 1, 1981||The Munters Corporation||Reactor column|
|US4333894 *||Jan 10, 1980||Jun 8, 1982||Veb Chemieanlagenbaukombinat Leipzig-Grimma||Mass-transfer column|
|US4415670 *||Jun 22, 1981||Nov 15, 1983||Merck & Co., Inc.||Motionless mixer as cell culture propagator|
|US4471014 *||Mar 29, 1982||Sep 11, 1984||Atomic Energy Of Canada Limited||Ordered bed packing module|
|US4493735 *||Jul 12, 1982||Jan 15, 1985||Sulzer Brothers Limited||Device and method for forming a fluidized bed|
|US4514092 *||May 4, 1983||Apr 30, 1985||Burlington Industries, Inc.||Automated sizing system controlling|
|US4532086 *||Jul 12, 1982||Jul 30, 1985||Sulzer Brothers Limited||Packing made of one-piece layers|
|US4595546 *||Nov 14, 1983||Jun 17, 1986||Crompton & Knowles Corporation||Manufacture of elongated extruded cross-linked products|
|US4597916 *||Apr 19, 1985||Jul 1, 1986||Glitsch, Inc.||Method of and apparatus for intermediate lamella vapor liquid contact|
|US4599174 *||Feb 27, 1984||Jul 8, 1986||Polybac Corporation||Submerged fixed film biological treatment system|
|US4604247 *||Apr 19, 1985||Aug 5, 1986||Glitsch, Inc.||Tower packing material and method|
|US4605310 *||Feb 8, 1985||Aug 12, 1986||Burlington Industries, Inc.||Automated sizing system controlling using a radio transmitter level control|
|US4643853 *||Mar 27, 1985||Feb 17, 1987||Raschig Gmbh||Packing element for use in mass transfer or heat transfer columns|
|US4670196 *||Sep 13, 1985||Jun 2, 1987||Norton Company||Tower packing element|
|US4701287 *||Aug 30, 1985||Oct 20, 1987||Manteufel Rolf P C||Apparatus for the exchange of material and/or heat between and/or for mixing of gaseous and/or liquid substances|
|US4719090 *||Feb 20, 1985||Jan 12, 1988||Ngk Insulators, Ltd.||Porous structure for fluid contact|
|US4725287 *||Nov 24, 1986||Feb 16, 1988||Canadian Occidental Petroleum, Ltd.||Preparation of stable crude oil transport emulsions|
|US4731229 *||Apr 23, 1986||Mar 15, 1988||Sulzer Brothers Limited||Reactor and packing element for catalyzed chemical reactions|
|US4842778 *||Nov 23, 1987||Jun 27, 1989||Glitsch, Inc.||Apparatus for flow distribution in packed towers|
|US4848920 *||Feb 26, 1988||Jul 18, 1989||Husky Injection Molding Systems Ltd.||Static mixer|
|US4919541 *||Apr 7, 1986||Apr 24, 1990||Sulzer Brothers Limited||Gas-liquid mass transfer apparatus and method|
|US4929399 *||Oct 12, 1989||May 29, 1990||Union Carbide Industrial Gases Technology Inc.||Structured column packing with liquid holdup|
|US4950430 *||Oct 24, 1988||Aug 21, 1990||Glitsch, Inc.||Structured tower packing|
|US4966235 *||Jan 31, 1989||Oct 30, 1990||Canadian Occidental Petroleum Ltd.||In situ application of high temperature resistant surfactants to produce water continuous emulsions for improved crude recovery|
|US4978365 *||Oct 27, 1987||Dec 18, 1990||Canadian Occidental Petroleum Ltd.||Preparation of improved stable crude oil transport emulsions|
|US4981621 *||Apr 23, 1990||Jan 1, 1991||Sulzer Brother Limited||Regular packing element of thin foil-like material for mass transfer and heat exchange columns|
|US4983319 *||Jul 14, 1988||Jan 8, 1991||Canadian Occidental Petroleum Ltd.||Preparation of low-viscosity improved stable crude oil transport emulsions|
|US5013492 *||Apr 6, 1990||May 7, 1991||Munters Corporation||Arrangement for contact bodies for liquid and gas|
|US5057250 *||Nov 27, 1990||Oct 15, 1991||Glitsch, Inc.||Tower packing with small louvers|
|US5080836 *||Nov 27, 1990||Jan 14, 1992||Glitsch, Inc.||Tower packing with small and large louvers|
|US5132056 *||May 28, 1991||Jul 21, 1992||Union Carbide Industrial Gases Technology Corporation||Structured column packing with improved turndown and method|
|US5139544 *||Oct 22, 1990||Aug 18, 1992||Koch Engineering Company, Inc.||Gas-liquid contact column with improved mist eliminator and method|
|US5156652 *||Dec 13, 1989||Oct 20, 1992||Canadian Occidental Petroleum Ltd.||Low-temperature pipeline emulsion transportation enhancement|
|US5185106 *||Aug 19, 1991||Feb 9, 1993||Glitsch, Inc.||Tower packing with small louvers and mixing method|
|US5188773 *||Aug 19, 1991||Feb 23, 1993||Glitsch, Inc.||Tower packing with small and large louvers and mixing method|
|US5283001 *||Apr 18, 1991||Feb 1, 1994||Canadian Occidental Petroleum Ltd.||Process for preparing a water continuous emulsion from heavy crude fraction|
|US5380088 *||Jan 21, 1994||Jan 10, 1995||Sulzer Brothers Limited||Mixing device for small fluid quantities|
|US5407274 *||Feb 22, 1994||Apr 18, 1995||Texaco Inc.||Device to equalize steam quality in pipe networks|
|US5437784 *||May 3, 1994||Aug 1, 1995||J. M. Voith Gmbh||Injector for a flotation device|
|US5476783 *||Aug 31, 1993||Dec 19, 1995||Koch Engineering Company, Inc.||Bioreactor method of culturing and propagating cells with a woven motionless mixing element|
|US5536454 *||Jun 5, 1995||Jul 16, 1996||Mitsubishi Jukogyo Kabushiki Kaisha||Apparatus for gas-liquid contact|
|US5636981 *||May 19, 1994||Jun 10, 1997||Lilly Engineering Company||Fuel oil burner|
|US5653126 *||Sep 1, 1995||Aug 5, 1997||Hitachi, Ltd.||Packing material and air separator|
|US5709468 *||Jun 19, 1995||Jan 20, 1998||Texaco Group, Inc.||Method for equalizing steam quality in pipe networks|
|US5730000 *||May 14, 1996||Mar 24, 1998||Air Products And Chemicals, Inc.||Structured packing element and a mass and heat transfer process using such packing element|
|US5813451 *||Sep 9, 1997||Sep 29, 1998||Caldyn, Inc.||Apparatus for heat transfer from dust laden gases to fluids|
|US5816317 *||Aug 16, 1996||Oct 6, 1998||Caldyn, Inc.||Apparatus for heat transfer from dust laden gases to fluids|
|US5876638 *||May 14, 1996||Mar 2, 1999||Air Products And Chemicals, Inc.||Structured packing element with bi-directional surface texture and a mass and heat transfer process using such packing element|
|US5997173 *||Feb 24, 1999||Dec 7, 1999||Koch-Glitsch, Inc.||Packing brick and method of constructing packing bed in exchange column using same|
|US6089549 *||Sep 25, 1997||Jul 18, 2000||Koch-Glitsch, Inc.||Exchange column structured packing bed having packing bricks|
|US6186223||Aug 27, 1999||Feb 13, 2001||Zeks Air Drier Corporation||Corrugated folded plate heat exchanger|
|US6224654||Jul 23, 1999||May 1, 2001||Daniel Chawla||Method for enhancement of duct removal out of chimney gases|
|US6244333||May 19, 1999||Jun 12, 2001||Zeks Air Drier Corporation||Corrugated folded plate heat exchanger|
|US6503460||Mar 17, 1999||Jan 7, 2003||Kellogg Brown & Root, Inc.||Staged catalyst regeneration in a baffled fluidized bed|
|US6560990||Jun 13, 2002||May 13, 2003||Nippon Sanso Corporation||Vapor-liquid contactor, cryogenic air separation unit and method of gas separation|
|US6565629 *||Dec 22, 1999||May 20, 2003||Nippon Sanso Corporation||Vapor-liquid contactor, cryogenic air separation unit and method of gas separation|
|US6575617 *||May 3, 2001||Jun 10, 2003||Sulzer Chemtech Ag||Static mixer with profiled layers|
|US7063817 *||Dec 31, 2001||Jun 20, 2006||Siemens Aktiengesellschaft||Device for cleaning flue gas|
|US7105036||Dec 8, 2003||Sep 12, 2006||C. E. Shepherd Co., Inc.||Drift eliminator, light trap, and method of forming same|
|US7198400||May 3, 2003||Apr 3, 2007||Husky Injection Molding Systems Ltd.||Static mixer and a method of manufacture thereof|
|US7390121 *||Mar 24, 1999||Jun 24, 2008||Bayer Aktiengesellschaft||Static mixer module|
|US7445715||Nov 22, 2005||Nov 4, 2008||Entex Technologies Inc.||System for treating wastewater and a controlled reaction-volume module usable therein|
|US7566487||Jul 7, 2004||Jul 28, 2009||Jonathan Jay Feinstein||Reactor with primary and secondary channels|
|US7691262||Apr 6, 2010||Entex Technologies Inc.||System for treating wastewater having a controlled reaction-volume module usable therein|
|US7854843||Mar 8, 2010||Dec 21, 2010||Entex Technologies Inc.||Wastewater treatment method|
|US7959134 *||Mar 24, 2006||Jun 14, 2011||Gea 2H Water Technologies Gmbh||Contact body for an evaporation humidifier or material exchanger|
|US8061890 *||May 10, 2007||Nov 22, 2011||Sulzer Chemtech Ag||Static mixer|
|US8568593||Jun 2, 2010||Oct 29, 2013||Entex Technologies, Inc.||Anoxic system screen scour|
|US20020081241 *||Dec 31, 2001||Jun 27, 2002||Ralph Sigling||Device for cleaning flue gas|
|US20030058737 *||Sep 25, 2001||Mar 27, 2003||Berry Jonathan Dwight||Mixer/flow conditioner|
|US20040218469 *||May 3, 2003||Nov 4, 2004||Husky Injection Molding Systems Ltd||Static mixer and a method of manufacture thereof|
|US20050051916 *||Sep 8, 2003||Mar 10, 2005||C.E. Shepherd Co., Inc.||Cooling media pack|
|US20050120688 *||Dec 8, 2003||Jun 9, 2005||C.E. Shepherd Co., Inc.||Drift eliminator, light trap, and method of forming same|
|US20060008399 *||Jul 7, 2004||Jan 12, 2006||Feinstein Jonathan J||Reactor with primary and secondary channels|
|US20070263486 *||May 10, 2007||Nov 15, 2007||Sulzer Chemtech Ag||Static mixer|
|US20080159069 *||Apr 6, 2006||Jul 3, 2008||Stichting Voor De Technische Wentenschappen||Inlet Section for Micro-Reactor|
|US20080286177 *||May 13, 2008||Nov 20, 2008||Tribute Creations, Llc||Reactor with differentially distributed catalytic activity|
|US20090038999 *||Oct 13, 2008||Feb 12, 2009||Entex Technologies Inc.||System for treating wastewater and a controlled reaction-volume module usable therein|
|US20100072636 *||Mar 24, 2006||Mar 25, 2010||Helgo Hagemann||Contact body for an evaporation humidifier or material exchanger|
|US20100163485 *||Mar 8, 2010||Jul 1, 2010||Entex Technologies Inc.||System for treating wastewater and a controlled reaction-volume module usable therein|
|EP0130745A2 *||Jun 21, 1984||Jan 9, 1985||Glitsch, Inc.||Expanded metal packing and method of manufacture|
|EP0158917A2 *||Apr 1, 1985||Oct 23, 1985||Raschig Aktiengesellschaft||Packing element for mass and heat transfer columns|
|EP0237942A1 *||Mar 11, 1987||Sep 23, 1987||Gebrüder Sulzer Aktiengesellschaft||Process and apparatus for evaporating liquefied hydrocarbons|
|EP0270476A1 *||Nov 23, 1987||Jun 8, 1988||Canadian Occidental Petroleum Ltd.||Preparation of stable crude oil transport emulsions|
|EP1123737A1 *||Feb 8, 2001||Aug 16, 2001||Basf Aktiengesellschaft||Fabrication of a catalytic packing, reactor with a catalytic packing and use thereof|
|EP2172442A1||Sep 3, 2009||Apr 7, 2010||Sulzer Chemtech AG||Method and device for separating carboxylic acids and/or carboxylic acid esters|
|EP2399664A1||Jun 7, 2011||Dec 28, 2011||Sulzer Chemtech AG||Method for mixing dust|
|WO1992006776A1 *||Oct 21, 1991||Apr 30, 1992||Koch Engineering Company, Inc.||Gas-liquid contact column with improved mist eliminator and method|
|U.S. Classification||366/175.2, 366/181.5, 261/98, 366/340, 261/DIG.720, 261/112.2, 261/103|
|International Classification||B01J16/00, B01J19/32, B01J19/30, B01J15/00, B01F5/06|
|Cooperative Classification||B01J2219/32255, B01J2219/32408, B01J15/005, B01J2219/32213, B01J2219/32268, B01J19/305, B01J2219/3221, B01J19/32, B01J16/005, B01J2219/32279, B01J2219/32206, Y10S261/72, B01J2219/32237, B01F5/0643|
|European Classification||B01J19/30B, B01J16/00P, B01J19/32, B01J15/00P, B01F5/06B3C3|