US3635444A - Static mixer - Google Patents

Static mixer Download PDF

Info

Publication number
US3635444A
US3635444A US70288A US3635444DA US3635444A US 3635444 A US3635444 A US 3635444A US 70288 A US70288 A US 70288A US 3635444D A US3635444D A US 3635444DA US 3635444 A US3635444 A US 3635444A
Authority
US
United States
Prior art keywords
barrel
unit
vanes
structure according
plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US70288A
Inventor
Charles Potter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AMVIT
Original Assignee
AMVIT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AMVIT filed Critical AMVIT
Application granted granted Critical
Publication of US3635444A publication Critical patent/US3635444A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements

Definitions

  • coaxial barrel which is mounted at its ends, respectively, in an inlet header through which materials to be mixed are fed under pressure to and through the unit, by which they are mixed, and in an outlet header through which the mixture is discharged.
  • the unit comprises a row of vanes arranged to divide the material into separate streams, reassemble them in different combinations, and redivide and combine the combinations, repeatedly, as the material passes through the unit.
  • This invention relates to a static mixer and particularly to a static mixer of the general type disclosed in US. Pat. No. 3,286,992 of Nov. 22, 1966.
  • Such static mixers have been found very effective for mixing moldable plastic compositions, usually by the introduction thereinto of soluble plastic material, filler, solvent, and catalytic setting agent. Generally such a mixer can be used for a few hours after which it must be flushed out with a suitable solvent, but after a period of about a week or two it must be replaced with an entirely new and clean mixer.
  • the mixing unit generally comprises fixed mixing vanes arranged in a row which extends endwise of the barrel.
  • the vanes are arranged so that as the material is discharged from one vane it discharges with a swirling action about the axis of the barrel and strikes the next vane which subdivides the stream before passing it on to the next succeeding vane which subdivides these subdivisions.
  • each subdivided stream is recombined with a subdivided stream different from the one from which it was subdivided the instant before.
  • the stream is subdivided and recombined in many different subcombinations so many times that a completely homogeneous mixture is discharged from the discharge end of the mixer.
  • vanes of these units have been made of very durable material, such as a stainless steel, carbon steel, glass, titanium, or Teflon, and the barrel made of ordinary steel. While this type of structure can be cleaned, provided only a very small amount of settable plastic accumulates therein and is of a type that can be dissolved readily, it cannot be cleaned once a substantial amount of plastic has formed in any one place or the mixer has become completely clogged. This is due primarily to the inaccessibility of the plastic, by solvents, in portions of the passages through the barrel and vane unit, or inaccessibility inherent if the vanes are arranged for efi'rcient mixing. For like reasons, an effective air supply cannot be applied to the clogging plastic in the mixer for use in burning out the plastic effectively.
  • very durable material such as a stainless steel, carbon steel, glass, titanium, or Teflon
  • the outer case or barrel is made of a material which is so related to the material of which the vanes are composed that, the barrel can readily be destroyed or rendered readily destructible by means which when applied in the intended manner to the combined barrel and unit for the destruction of the barrel leave the vane units and headers substantially intact.
  • the specific material of the barrel per se and of vane unit per se is secondary. It is the relation of the material of the one to the material of the other that is controlling. If the barrel is removed by destroying it by means which do not affect the headers and unit when applied to the entire assembly, then all parts of the vane unit are rendered readily accessible for cleaning by the application of chemicals, heat, mechanical forces, or other means.
  • the barrel may be formed of plastic, ceramic, or other material which can be readily fragmented, burnt or melted off, slit and pulled off, shattered at room temperature or in frozen condition, or dissolved chemically by means which, when and as applied to the mixer, does not deleteriously affect the material of the vane unit.
  • the vanes therefore, must be of a material such that they willnot be deleteriously affected or changed substantially in any manner as the result of the means used for destroying the barrel.
  • the vanes are of a hard metal, suchas steel or the like
  • the barrel may be made of a plastic which can be burnt off or rendered very frangible readily at temperatures around 400 F. which, of course, would not affect the steel appreciably.
  • the 'quick settingplastic is of a composition which can be burnt off the vanes at this same temperature, once adequate air can gain access to it. lnthe method of cleaning by heat, the entire mixer is placed. in an oven and heated to the temperature requisite to burn up and consume the barrel or to render it very frangible so that it can be fragmented and broken off readily,'thereby exposing the vane unit and all the intricate passages within the vane unit for cleaning. Generally all that is necessary is to heat the entire combination of casing and unit and then with a heavy brush, brush off the weakened plastic barrel and the plastic adhering to the vanes themselves.
  • Polyvinylchloride, polyethelene, and other types of commercially available synthetic plastic pipes have been found to be effective for the barrels, so long as the unit is of a material which would not be destroyed by the destruction of the barrel.
  • the outer barrel may be of a metal which can be dissolved chemically by a solvent which would not adversely afiect the vane unit, in which case the vane units are readily exposed for cleaning by any conventional means.
  • the barrel might by of ceramic or glass or a composition which can readily be fragmented by a series of sharp blows without damage to the vane unit or headers.
  • the cleaning problem is simplified so that cleaning can be effected at very little expense in man-hours, materials, and down time.
  • cleaning can be effected by an average workman in the plant where the unit is in use.
  • FIG. 1 is a side elevation of a mixer embodying the principles of the present invention
  • FlG. 2 is a cross-sectional view of the mixer taken on line 2-2 ofFlG. 1;
  • HG. 3 is a cross-sectional view of the mixer taken on line 3-3 of FIG. 1.
  • the mixer indicated generally at l, comprises a tubular barrel 2 having at its inlet end a feed header 3 and at its outlet end a discharge header 4.
  • the feed header is provided with one or more feedpipes or ducts 5 which supply the separate ingredients, or a preliminary mixture thereof, as preselected, into the header under pressure sufficient to cause a relatively rapid flow of the material through the mixer.
  • a static vane mixing unit 6 which is in the form of a plurality of blades 7 which may be directly fastened together or fastened to a center rod or support.
  • the blades are arranged in a row extending from one end of the barrel to the other and, if desired, the row may be connected at its ends to the headers.
  • the outer periphery of the vanes of this mixing unit may fit rather snugly against the interior wall of the barrel 2, but may terminate close thereto and not necessarily bein sealing relation thereto.
  • the vanes 7 are arranged so that the material entering through the header 3 is divided initially at that end of the barrel and unit. The two streams resulting from this division pass to the next vanes which subdivide each of these streams and recombines each subdivided stream with another subdivided stream different from the one from which it was previously subdivided. As the material passes to successive vanes, further subdividing and combining are caused so that by the time the material reaches the discharge header 4, a multitudinous number of streams have been divided, subdivided, and intermixed with each other to an extent such that the mixture discharged from the mixer is substantially homogeneous and uniform throughout.
  • the discharge header 4 is provided with a discharge pipe 8 which is arranged to discharge into molds, not shown, which are moved successively therebeneath.
  • the timing for as short a cycle as possible is important from the economic standpoint and hence it is desirable to pass the material through the mixer at the maximum rate permissible, this rate, of course, depending on the nature of the plastic material which is passed through the mixer and the viscosities and chemical characteristics.
  • the materials are supplied to the mixer under pressure so as to maintain the proper flow, but in seeking as short a cycle as possible, the danger of setting up" of the material because of a slight increase in resistance to flow slowing down the stream is increased.
  • vane unit of course, is dictated to some extent by the type of materials which are to be mixed. This dictates, in turn, the type of material to be used for the barrel and the type of destruction of the barrel casing to be employed to afford access to the vane unit for cleaning.
  • the invention is also applicable to mixers with other types of mixing units operating in a barrel or container where clogging by setting up" or by sludge due to increase in viscosity, and the like, occur and the interior is inaccessible for cleaning in the assembled relation of the parts.
  • a continuous static type continuous mixer for flowable ingredients of a quick-setting plastic fed continuously under pressure and for mixing the ingredients and discharging the resultant plastic in flowable moldable condition, comprising:
  • a header on one end of the barrel adapted for connection to a source for receiving the ingredients under pressure and admitting the received ingredients into the barrel;
  • a static rigid mixing unit within the barrel and comprising a row of mixing vanes extending endwise of the barrel and arranged so that the stream of material is caused to flow through tortuous paths and to be subdivided and the subdivided streams mixed repeatedly as the material passes through the barrel to the discharge means;
  • said barrel being composed of a material different from that of the vanes, said material being such, relative to the material of the vanes, that saidmaterial can be destroyed or rendered readily destructible by means which, when and as applied so that the combined barrel and unit are subjected thereto, leave the vanes substantially intact.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The static mixer has a static rigid mixing unit contained in a coaxial barrel which is mounted at its ends, respectively, in an inlet header through which materials to be mixed are fed under pressure to and through the unit, by which they are mixed, and in an outlet header through which the mixture is discharged. The unit comprises a row of vanes arranged to divide the material into separate streams, reassemble them in different combinations, and redivide and combine the combinations, repeatedly, as the material passes through the unit. The characteristic feature is that the barrel and unit are composed of different materials so related that the barrel can be destroyed readily, or rendered readily destructible, by means which, when and as applied to the combined barrel and unit so that both are subjected thereto, leaves the unit substantially intact.

Description

Unite States Patent Potter [451 Jan 18, 11972 [54] STATIC MIXER Primary ExaminerRobert W. Jenkins Attorney-John Harrow Leonard [72] Inventor: Charles Potter, Lakewood, Ohio [73] Assignee: AMVIT, Cleveland, Ohio [57] ABSTRACT [22] Filed: Sept 8, 1970 The static mixer has a static rigid mixing unit contained in a Appl. No.: 70,288
coaxial barrel which is mounted at its ends, respectively, in an inlet header through which materials to be mixed are fed under pressure to and through the unit, by which they are mixed, and in an outlet header through which the mixture is discharged. The unit comprises a row of vanes arranged to divide the material into separate streams, reassemble them in different combinations, and redivide and combine the combinations, repeatedly, as the material passes through the unit.
8 Claims, 3 Drawing Figures STATIC MIXER This invention relates to a static mixer and particularly to a static mixer of the general type disclosed in US. Pat. No. 3,286,992 of Nov. 22, 1966.
Such static mixers have been found very effective for mixing moldable plastic compositions, usually by the introduction thereinto of soluble plastic material, filler, solvent, and catalytic setting agent. Generally such a mixer can be used for a few hours after which it must be flushed out with a suitable solvent, but after a period of about a week or two it must be replaced with an entirely new and clean mixer.
When used, however, for mixing quick-setting plastic compositions, an additional problem is involved. Due to thequicksetting characteristics, the flow throughthemixer must be at a rate above a predetermined minimum, or else the plastic will set up within the mixer instead of being discharged into the usual succession of molds which generallyare moved on suita ble belts past the discharge of the mixer in timed relation to the discharge therefrom. If for any reason a slight delay or decrease in rate of the passage of the plastic mixture through the mixer occurs, the mixture sets up in portions of the mixer and restricts the flow, thus further slowing the discharge and resulting in the entire mixer being clogged with the hardsetting plastic. Generally such static mixers are in the form of a tubular barrel in whichis arranged a rigid static mixing unit. The mixing unit generally comprises fixed mixing vanes arranged in a row which extends endwise of the barrel. The vanes are arranged so that as the material is discharged from one vane it discharges with a swirling action about the axis of the barrel and strikes the next vane which subdivides the stream before passing it on to the next succeeding vane which subdivides these subdivisions. At each subdivision, each subdivided stream is recombined with a subdivided stream different from the one from which it was subdivided the instant before. Thus as the materials pass through the length of the barrel, the stream is subdivided and recombined in many different subcombinations so many times that a completely homogeneous mixture is discharged from the discharge end of the mixer. By the very nature of these vanes, however, and their arrangement in the barrel, they cannot be cleaned readily once any appreciable quantity of plastic has set up in the various interstices and along the serpentine passages defined by the unit and the barrel.
Attempts have been made to make the barrel, headers, and unit readily separable for cleaning, but due to the cementing and interlocking effects of the plastic, this approach has proven impractical.
Also attempts have been made to clean by introducing plastic solvents, but they cannot be circulated effectively through the tortuous passages in the units, especially when the entire flow has been blocked at some location in the mixer.
Heretofore the vanes of these units have been made of very durable material, such as a stainless steel, carbon steel, glass, titanium, or Teflon, and the barrel made of ordinary steel. While this type of structure can be cleaned, provided only a very small amount of settable plastic accumulates therein and is of a type that can be dissolved readily, it cannot be cleaned once a substantial amount of plastic has formed in any one place or the mixer has become completely clogged. This is due primarily to the inaccessibility of the plastic, by solvents, in portions of the passages through the barrel and vane unit, or inaccessibility inherent if the vanes are arranged for efi'rcient mixing. For like reasons, an effective air supply cannot be applied to the clogging plastic in the mixer for use in burning out the plastic effectively.
In accordance with the present invention, however, the outer case or barrel is made of a material which is so related to the material of which the vanes are composed that, the barrel can readily be destroyed or rendered readily destructible by means which when applied in the intended manner to the combined barrel and unit for the destruction of the barrel leave the vane units and headers substantially intact.
The specific material of the barrel per se and of vane unit per se is secondary. It is the relation of the material of the one to the material of the other that is controlling. If the barrel is removed by destroying it by means which do not affect the headers and unit when applied to the entire assembly, then all parts of the vane unit are rendered readily accessible for cleaning by the application of chemicals, heat, mechanical forces, or other means.
For example, the barrelmay be formed of plastic, ceramic, or other material which can be readily fragmented, burnt or melted off, slit and pulled off, shattered at room temperature or in frozen condition, or dissolved chemically by means which, when and as applied to the mixer, does not deleteriously affect the material of the vane unit. The vanes, therefore, must be of a material such that they willnot be deleteriously affected or changed substantially in any manner as the result of the means used for destroying the barrel. Assuming that the vanes are of a hard metal, suchas steel or the like, the barrel may be made of a plastic which can be burnt off or rendered very frangible readily at temperatures around 400 F. which, of course, would not affect the steel appreciably. Generally the 'quick settingplastic is of a composition which can be burnt off the vanes at this same temperature, once adequate air can gain access to it. lnthe method of cleaning by heat, the entire mixer is placed. in an oven and heated to the temperature requisite to burn up and consume the barrel or to render it very frangible so that it can be fragmented and broken off readily,'thereby exposing the vane unit and all the intricate passages within the vane unit for cleaning. Generally all that is necessary is to heat the entire combination of casing and unit and then with a heavy brush, brush off the weakened plastic barrel and the plastic adhering to the vanes themselves.
Polyvinylchloride, polyethelene, and other types of commercially available synthetic plastic pipes have been found to be effective for the barrels, so long as the unit is of a material which would not be destroyed by the destruction of the barrel.
On the other hand, the outer barrel may be of a metal which can be dissolved chemically by a solvent which would not adversely afiect the vane unit, in which case the vane units are readily exposed for cleaning by any conventional means.
Again, the barrel might by of ceramic or glass or a composition which can readily be fragmented by a series of sharp blows without damage to the vane unit or headers.
Thus by using for the barrel a material properly related to the material of the vane unit, the cleaning problem is simplified so that cleaning can be effected at very little expense in man-hours, materials, and down time. Such cleaning can be effected by an average workman in the plant where the unit is in use.
A preferred embodiment of the invention is illustrated in the drawings, in which:
FIG. 1 is a side elevation of a mixer embodying the principles of the present invention;
FlG. 2 is a cross-sectional view of the mixer taken on line 2-2 ofFlG. 1; and
HG. 3 is a cross-sectional view of the mixer taken on line 3-3 of FIG. 1.
In the illustrative example, the mixer, indicated generally at l, comprises a tubular barrel 2 having at its inlet end a feed header 3 and at its outlet end a discharge header 4. The feed header is provided with one or more feedpipes or ducts 5 which supply the separate ingredients, or a preliminary mixture thereof, as preselected, into the header under pressure sufficient to cause a relatively rapid flow of the material through the mixer.
Within and coaxial with the barrel 2 is a static vane mixing unit 6 which is in the form of a plurality of blades 7 which may be directly fastened together or fastened to a center rod or support. The blades are arranged in a row extending from one end of the barrel to the other and, if desired, the row may be connected at its ends to the headers. The outer periphery of the vanes of this mixing unit may fit rather snugly against the interior wall of the barrel 2, but may terminate close thereto and not necessarily bein sealing relation thereto.
The vanes 7 are arranged so that the material entering through the header 3 is divided initially at that end of the barrel and unit. The two streams resulting from this division pass to the next vanes which subdivide each of these streams and recombines each subdivided stream with another subdivided stream different from the one from which it was previously subdivided. As the material passes to successive vanes, further subdividing and combining are caused so that by the time the material reaches the discharge header 4, a multitudinous number of streams have been divided, subdivided, and intermixed with each other to an extent such that the mixture discharged from the mixer is substantially homogeneous and uniform throughout.
The discharge header 4 is provided with a discharge pipe 8 which is arranged to discharge into molds, not shown, which are moved successively therebeneath. The timing for as short a cycle as possible is important from the economic standpoint and hence it is desirable to pass the material through the mixer at the maximum rate permissible, this rate, of course, depending on the nature of the plastic material which is passed through the mixer and the viscosities and chemical characteristics. The materials are supplied to the mixer under pressure so as to maintain the proper flow, but in seeking as short a cycle as possible, the danger of setting up" of the material because of a slight increase in resistance to flow slowing down the stream is increased.
The specific type of vane unit, of course, is dictated to some extent by the type of materials which are to be mixed. This dictates, in turn, the type of material to be used for the barrel and the type of destruction of the barrel casing to be employed to afford access to the vane unit for cleaning.
It is apparent from the foregoing description that regardless of how badly clogged the unit may become, cleaning is made possible by the relative destructibility and indestructibility of the barrel and vane unit, respectively.
The invention is also applicable to mixers with other types of mixing units operating in a barrel or container where clogging by setting up" or by sludge due to increase in viscosity, and the like, occur and the interior is inaccessible for cleaning in the assembled relation of the parts.
Having thus described my invention, 1 claim:
1. A continuous static type continuous mixer for flowable ingredients of a quick-setting plastic fed continuously under pressure and for mixing the ingredients and discharging the resultant plastic in flowable moldable condition, comprising:
a tubular barrel;
a header on one end of the barrel adapted for connection to a source for receiving the ingredients under pressure and admitting the received ingredients into the barrel;
discharge means at the other end of the barrel;
a static rigid mixing unit within the barrel and comprising a row of mixing vanes extending endwise of the barrel and arranged so that the stream of material is caused to flow through tortuous paths and to be subdivided and the subdivided streams mixed repeatedly as the material passes through the barrel to the discharge means;
said barrel being composed of a material different from that of the vanes, said material being such, relative to the material of the vanes, that saidmaterial can be destroyed or rendered readily destructible by means which, when and as applied so that the combined barrel and unit are subjected thereto, leave the vanes substantially intact.
2. The structure according to claim 1 wherein the barrel is composed of material which is rendered readily destructible by the application of heat to the combined barrel and unit at predetermined low temperatures below temperatures which have deleterious effects on the unit.
3. The structure according to claim 1 wherein the barrel is composed of material which is soluble readily in a solvent in which the unit is insoluble.
4. The structure according to claim 1 wherein the barrel is composed of material which can be broken into fragments readily by mechanical forces which, as applied to the combined barrel and unit, leave the vanes substantially intact.
5. The structure according to claim 1 wherein the barrel is set plastic material.
6. The structure according to claim 5 wherein the barrel is ceramic material.
7. The structure according to claim 5 wherein the unit is of hard metal.
8. The structure according to claim 1 wherein the barrel is composed of synthetic organic plastic and filler and the vanes are ferrous metal.

Claims (8)

1. A continuous static type continuous mixer for flowable ingredients of a quick-setting plastic fed continuously under pressure and for mixing the ingredients and discharging the resultant plastic in flowable moldable condition, comprising: a tubular barrel; a header on one end of the barrel adapted for connection to a source for receiving the ingredients under pressure and admitting the received ingredients into the barrel; discharge means at the other end of the barrel; a static rigid mixing unit within the barrel and comprising a row of mixing vanes extending endwise of the barrel and arranged so that the stream of material is caused to flow through tortuous paths and to be subdivided and the subdivided streams mixed repeatedly as the material passes through the barrel to the discharge means; said barrel being composed of a material different from that of the vanes, said material being such, relative to the material of the vanes, that said material can be destroyed or rendered readily destructible by means which, when and as applied so that the combined barrel and unit are subjected thereto, leave the vanes substantially intact.
2. The structure according to claim 1 wherein the barrel is composed of material which is rendered readily destructible by the application of heat to the combined barrel and unit at predetermined low temperatures below temperatures which have deleterious effects on the unit.
3. The structure according to claim 1 wherein the barrel is composed of material which is soluble readily in a solvent in which the unit is insoluble.
4. The structure according to claim 1 wherein the barrel is composed of material which can be broken into fragments readily by mechanical forces which, as applied to the combined barrel and unit, leave the vanes substantially intact.
5. The structure according to claim 1 wherein the barrel is set plastic material.
6. The structure according to claim 5 wherein the barrel is ceramic material.
7. The structure according to claim 5 wherein the unit is of hard metal.
8. The structure according to claim 1 wherein the barrel is composed of synthetic organic plastic and filler and the vanes are ferrous metal.
US70288A 1970-09-08 1970-09-08 Static mixer Expired - Lifetime US3635444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7028870A 1970-09-08 1970-09-08

Publications (1)

Publication Number Publication Date
US3635444A true US3635444A (en) 1972-01-18

Family

ID=22094376

Family Applications (1)

Application Number Title Priority Date Filing Date
US70288A Expired - Lifetime US3635444A (en) 1970-09-08 1970-09-08 Static mixer

Country Status (1)

Country Link
US (1) US3635444A (en)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2163459A1 (en) * 1971-12-15 1973-07-27 Corning Glass Works
US3751009A (en) * 1972-03-02 1973-08-07 Mc Hugh J Motionless mixing device
US3794300A (en) * 1971-12-30 1974-02-26 Dow Badische Co Annular spiral isg
US3800985A (en) * 1971-04-15 1974-04-02 Kenics Corp System and method for distributing highly viscous molten material
US3806097A (en) * 1972-06-05 1974-04-23 Kenics Corp Mixer structure for distributing molten material
US3861652A (en) * 1972-11-15 1975-01-21 Du Pont Mixing device
US4183682A (en) * 1978-08-10 1980-01-15 Union Oil Company Of California Motionless mixer and method for removing scaled mixing elements therefrom
US4208136A (en) * 1978-12-01 1980-06-17 Komax Systems, Inc. Static mixing apparatus
US4351664A (en) * 1981-03-16 1982-09-28 Corning Glass Works Furnace delivery system
US4365986A (en) * 1981-03-16 1982-12-28 Corning Glass Works Furnace delivery system
US4408038A (en) * 1982-03-29 1983-10-04 E. I. Du Pont De Nemours & Co. In-line coagulation process for fluoroelastomer emulsions
US4538920A (en) * 1983-03-03 1985-09-03 Minnesota Mining And Manufacturing Company Static mixing device
US4776704A (en) * 1986-12-15 1988-10-11 Dentsply Research & Development Corp. Mixing and dispensing syringe
US5053202A (en) * 1990-08-02 1991-10-01 Olin Corporation Static mixer configuration
US5225168A (en) * 1991-09-03 1993-07-06 Caterpillar Inc. Static mixing apparatus
EP0709166A1 (en) * 1994-10-24 1996-05-01 Motorola, Inc. Chemical-mechanical polisher and a process for polishing
US5759603A (en) * 1996-11-15 1998-06-02 Kellogg Company Process for producing a food product having a distinct phase
US6079868A (en) * 1997-12-18 2000-06-27 Advanced Bio Surfaces, Inc. Static mixer
US6365080B1 (en) 1999-06-09 2002-04-02 Ronald J. Parise Method of making a multi-portion mixing element
WO2003041605A1 (en) 2001-11-16 2003-05-22 3M Espe Ag Device for storing, mixing and dispensing a free-flowing material
US20070077328A1 (en) * 2005-10-04 2007-04-05 Gheorghe Olaru Melt redistribution element for an injection molding apparatus
US20080106969A1 (en) * 2006-11-02 2008-05-08 Anemos Company Ltd. Fluid mixer and mixing element member
US20080117715A1 (en) * 2006-11-16 2008-05-22 Gc Corporation Mixing element
US20100155643A1 (en) * 2005-11-01 2010-06-24 Robles Antonio T Method for preparing acidic solutions of activated silica for water treatment
WO2010092413A2 (en) 2009-02-16 2010-08-19 Iris Vrus-Pervan Precise hair dyeing set with hair lock fastener
CN102001486A (en) * 2009-08-28 2011-04-06 翁文桂 Barrier-property lapped polymer film packaging material
US20110182134A1 (en) * 2010-01-22 2011-07-28 Dow Global Technologies Inc. Mixing system comprising an extensional flow mixer
US20120039147A1 (en) * 2009-06-05 2012-02-16 Medmix Systems Ag Mixing apparatus for producing a mixture composed of at least three components
US20140261713A1 (en) * 2013-03-13 2014-09-18 Medrad, Inc. Fluid Path Set with Turbulent Mixing Chamber, Backflow Compensator
US20150016214A1 (en) * 2011-08-24 2015-01-15 Michael Mueller Mixer device
CN105617896A (en) * 2014-11-25 2016-06-01 爱思株式会社 Pipeline mixer
WO2017194652A1 (en) 2016-05-13 2017-11-16 Ge Healthcare Bio-Sciences Ab Support vessels for single use bioreactors and mixers
US20170326032A1 (en) * 2015-09-22 2017-11-16 Aiying Wang Drug decocting container
US10710035B1 (en) * 2017-09-01 2020-07-14 Outotec (Finland) Oy Feed mixture distribution device
US10850236B2 (en) 2015-08-31 2020-12-01 Palo Alto Research Center Incorporated Low dispersion, fast response mixing device
US11141535B2 (en) 2017-08-31 2021-10-12 Bayer Healthcare Llc Fluid path impedance assessment for improving fluid delivery performance
EP3735317A4 (en) * 2018-01-05 2021-10-13 Sabic Sk Nexlene Company Pte. Ltd. Mixing system
US20220243853A1 (en) * 2021-02-02 2022-08-04 Big Elk Energy Systems, LLC Inline ultrasonic attenuator with helical baffle
US11478581B2 (en) 2017-08-31 2022-10-25 Bayer Healthcare Llc Fluid injector system volume compensation system and method
US11598664B2 (en) 2017-08-31 2023-03-07 Bayer Healthcare Llc Injector pressure calibration system and method
US11672902B2 (en) 2016-03-03 2023-06-13 Bayer Healthcare Llc System and method for improved fluid delivery in multi-fluid injector systems
US11712552B2 (en) 2020-02-28 2023-08-01 Bayer Healthcare Llc Fluid mixing set
US11779702B2 (en) 2017-08-31 2023-10-10 Bayer Healthcare Llc Method for dynamic pressure control in a fluid injector system
US11786652B2 (en) 2017-08-31 2023-10-17 Bayer Healthcare Llc System and method for drive member position and fluid injector system mechanical calibration
US11839751B2 (en) 2020-06-18 2023-12-12 Bayer Healthcare Llc In-line air bubble suspension apparatus for angiography injector fluid paths
US11938093B2 (en) 2020-02-21 2024-03-26 Bayer Healthcare Llc Fluid path connectors for medical fluid delivery

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051453A (en) * 1958-07-08 1962-08-28 American Enka Corp Mixing apparatus
US3286992A (en) * 1965-11-29 1966-11-22 Little Inc A Mixing device
US3406947A (en) * 1966-08-19 1968-10-22 Dow Chemical Co Interfacial surface generator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051453A (en) * 1958-07-08 1962-08-28 American Enka Corp Mixing apparatus
US3286992A (en) * 1965-11-29 1966-11-22 Little Inc A Mixing device
US3406947A (en) * 1966-08-19 1968-10-22 Dow Chemical Co Interfacial surface generator

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800985A (en) * 1971-04-15 1974-04-02 Kenics Corp System and method for distributing highly viscous molten material
FR2163459A1 (en) * 1971-12-15 1973-07-27 Corning Glass Works
US3794300A (en) * 1971-12-30 1974-02-26 Dow Badische Co Annular spiral isg
US3751009A (en) * 1972-03-02 1973-08-07 Mc Hugh J Motionless mixing device
US3806097A (en) * 1972-06-05 1974-04-23 Kenics Corp Mixer structure for distributing molten material
US3861652A (en) * 1972-11-15 1975-01-21 Du Pont Mixing device
US4183682A (en) * 1978-08-10 1980-01-15 Union Oil Company Of California Motionless mixer and method for removing scaled mixing elements therefrom
US4208136A (en) * 1978-12-01 1980-06-17 Komax Systems, Inc. Static mixing apparatus
US4351664A (en) * 1981-03-16 1982-09-28 Corning Glass Works Furnace delivery system
US4365986A (en) * 1981-03-16 1982-12-28 Corning Glass Works Furnace delivery system
US4408038A (en) * 1982-03-29 1983-10-04 E. I. Du Pont De Nemours & Co. In-line coagulation process for fluoroelastomer emulsions
US4538920A (en) * 1983-03-03 1985-09-03 Minnesota Mining And Manufacturing Company Static mixing device
US4776704A (en) * 1986-12-15 1988-10-11 Dentsply Research & Development Corp. Mixing and dispensing syringe
US5053202A (en) * 1990-08-02 1991-10-01 Olin Corporation Static mixer configuration
US5225168A (en) * 1991-09-03 1993-07-06 Caterpillar Inc. Static mixing apparatus
EP0709166A1 (en) * 1994-10-24 1996-05-01 Motorola, Inc. Chemical-mechanical polisher and a process for polishing
US5985045A (en) * 1994-10-24 1999-11-16 Motorola, Inc. Process for polishing a semiconductor substrate
US5759603A (en) * 1996-11-15 1998-06-02 Kellogg Company Process for producing a food product having a distinct phase
US6079868A (en) * 1997-12-18 2000-06-27 Advanced Bio Surfaces, Inc. Static mixer
US6365080B1 (en) 1999-06-09 2002-04-02 Ronald J. Parise Method of making a multi-portion mixing element
US20040262332A1 (en) * 2001-11-16 2004-12-30 Helmut Pauser Device for storing mixing and dispensing a free-flowing material
DE10156075A1 (en) * 2001-11-16 2003-06-05 3M Espe Ag Device for storing, mixing and dispensing a flowable mass
DE10156075B4 (en) * 2001-11-16 2004-04-15 3M Espe Ag Device and method for storing, mixing and dispensing a flowable mass
WO2003041605A1 (en) 2001-11-16 2003-05-22 3M Espe Ag Device for storing, mixing and dispensing a free-flowing material
US20080099507A9 (en) * 2001-11-16 2008-05-01 Helmut Pauser Device for storing, mixing and dispensing a free-flowing material
US7806297B2 (en) 2001-11-16 2010-10-05 3M Innovative Properties Company Device for storing, mixing and dispensing a free-flowing material
US20070077328A1 (en) * 2005-10-04 2007-04-05 Gheorghe Olaru Melt redistribution element for an injection molding apparatus
US7614872B2 (en) * 2005-10-04 2009-11-10 Mold-Masters (2007) Limited Melt redistribution element for an injection molding apparatus
US7959800B2 (en) * 2005-11-01 2011-06-14 Robles Antonio T Method for preparing acidic solutions of activated silica for water treatment
US20100155643A1 (en) * 2005-11-01 2010-06-24 Robles Antonio T Method for preparing acidic solutions of activated silica for water treatment
US20080106969A1 (en) * 2006-11-02 2008-05-08 Anemos Company Ltd. Fluid mixer and mixing element member
US7874721B2 (en) * 2006-11-16 2011-01-25 Gc Corporation Mixing element
US20080117715A1 (en) * 2006-11-16 2008-05-22 Gc Corporation Mixing element
WO2010092413A2 (en) 2009-02-16 2010-08-19 Iris Vrus-Pervan Precise hair dyeing set with hair lock fastener
US20120039147A1 (en) * 2009-06-05 2012-02-16 Medmix Systems Ag Mixing apparatus for producing a mixture composed of at least three components
US9056288B2 (en) * 2009-06-05 2015-06-16 Medmix Systems Ag Mixing apparatus for producing a mixture composed of at least three components
CN102001486A (en) * 2009-08-28 2011-04-06 翁文桂 Barrier-property lapped polymer film packaging material
CN102001486B (en) * 2009-08-28 2014-01-15 翁文桂 Barrier-property lapped polymer film packaging material
US20110182134A1 (en) * 2010-01-22 2011-07-28 Dow Global Technologies Inc. Mixing system comprising an extensional flow mixer
US20120287744A1 (en) * 2010-01-22 2012-11-15 Dow Global Technologies Llc Mixing system comprising an extensional flow mixer
US8876365B2 (en) * 2010-01-22 2014-11-04 Dow Global Technologies Llc Mixing system comprising an extensional flow mixer
US9835068B2 (en) * 2011-08-24 2017-12-05 Friedrich Boysen Gmbh & Co. Kg Mixer device
US20150016214A1 (en) * 2011-08-24 2015-01-15 Michael Mueller Mixer device
US10029220B2 (en) 2013-03-13 2018-07-24 Bayer Healthcare Llc Fluid path set with turbulent mixing chamber, back flow compensator
US11278853B2 (en) 2013-03-13 2022-03-22 Bayer Healthcare Llc Method for controlling fluid accuracy and backflow compensation
US20140261713A1 (en) * 2013-03-13 2014-09-18 Medrad, Inc. Fluid Path Set with Turbulent Mixing Chamber, Backflow Compensator
US9555379B2 (en) * 2013-03-13 2017-01-31 Bayer Healthcare Llc Fluid path set with turbulent mixing chamber, backflow compensator
CN105617896A (en) * 2014-11-25 2016-06-01 爱思株式会社 Pipeline mixer
US10850236B2 (en) 2015-08-31 2020-12-01 Palo Alto Research Center Incorporated Low dispersion, fast response mixing device
US11904277B2 (en) 2015-08-31 2024-02-20 Xerox Corporation Low dispersion, fast response mixing device
US10548812B2 (en) * 2015-09-22 2020-02-04 Aiying Wang Drug decocting container
US20170326032A1 (en) * 2015-09-22 2017-11-16 Aiying Wang Drug decocting container
US11672902B2 (en) 2016-03-03 2023-06-13 Bayer Healthcare Llc System and method for improved fluid delivery in multi-fluid injector systems
WO2017194652A1 (en) 2016-05-13 2017-11-16 Ge Healthcare Bio-Sciences Ab Support vessels for single use bioreactors and mixers
US11598664B2 (en) 2017-08-31 2023-03-07 Bayer Healthcare Llc Injector pressure calibration system and method
US11478581B2 (en) 2017-08-31 2022-10-25 Bayer Healthcare Llc Fluid injector system volume compensation system and method
US11779702B2 (en) 2017-08-31 2023-10-10 Bayer Healthcare Llc Method for dynamic pressure control in a fluid injector system
US11786652B2 (en) 2017-08-31 2023-10-17 Bayer Healthcare Llc System and method for drive member position and fluid injector system mechanical calibration
US11826553B2 (en) 2017-08-31 2023-11-28 Bayer Healthcare Llc Fluid path impedance assessment for improving fluid delivery performance
US11141535B2 (en) 2017-08-31 2021-10-12 Bayer Healthcare Llc Fluid path impedance assessment for improving fluid delivery performance
US10710035B1 (en) * 2017-09-01 2020-07-14 Outotec (Finland) Oy Feed mixture distribution device
EP3735317A4 (en) * 2018-01-05 2021-10-13 Sabic Sk Nexlene Company Pte. Ltd. Mixing system
US11938093B2 (en) 2020-02-21 2024-03-26 Bayer Healthcare Llc Fluid path connectors for medical fluid delivery
US11712552B2 (en) 2020-02-28 2023-08-01 Bayer Healthcare Llc Fluid mixing set
US11839751B2 (en) 2020-06-18 2023-12-12 Bayer Healthcare Llc In-line air bubble suspension apparatus for angiography injector fluid paths
US20220243853A1 (en) * 2021-02-02 2022-08-04 Big Elk Energy Systems, LLC Inline ultrasonic attenuator with helical baffle

Similar Documents

Publication Publication Date Title
US3635444A (en) Static mixer
US2319859A (en) Process and apparatus for the preparation of rubber compounds
DE102006049171A1 (en) Device for mixing dry mortar with water comprises a mixing container and a cylindrical mixing chamber with flanges having a concentric inlet opening on one side and a concentric outlet opening having a concentric recess on the other side
EP0149990B1 (en) Device for the combustion of bio-mass
DE2943537A1 (en) METHOD AND SYSTEM FOR CONVERTING COAL WITH HYDROGEN INTO HYDROCARBON
DE1043719B (en) End hood for the flame tube of a gas turbine combustion chamber
EP0927095A1 (en) Device for homogenizing, mixing and/or granulating chemical substances
GB1162071A (en) Method and Apparatus for Continuous Dispersion of Viscous Substances
DE7242670U (en) MIXING DEVICE FOR MIXING COMPONENTS OF SYNTHETIC PLASTIC MATERIALS
DE1501462A1 (en) Heat exchanger with Waelzkoerfuellung and process for the operation of the same
US3536300A (en) Apparatus for continuously mixing powders and oils to make putty
DE578652C (en) Method and device for heating or cooling solids
EP4302036A1 (en) Rotary kiln and method for calcining carbonate-containing material, in particular limestone or dolomite
DE1476475B2 (en) DEVICE FOR AFTERBURNING EXHAUST GASES
EP1439360B1 (en) Process for firing a mineral material mixture
KR960041055A (en) Granulated activated carbon production apparatus and its manufacturing method
US701465A (en) Mixing-machine for concrete, &c.
DE19706077A1 (en) Hot gas generator with burner for dust fuels
DE2935865A1 (en) ROCKING OVEN FOR CALCINATING OR THE LIKE OF SOLIDS
DE457863C (en) Mixing device, especially for pulverized coal furnaces
DE10156616A1 (en) Clarification slurry combustion injects pumpable slurry into fluidized boiler bed via lance combining compressed air feed with slurry in mixer tube for spreading over fluidized bed.
DE2201730A1 (en) Bulk material cooling plant - two stage with second stage barrel cooler
US3677523A (en) Rebound pug mill
DE1253639B (en) Hot gas conveyor for fountain dryer
DE2411594C3 (en) Device for generating smoking smoke for food