DE102012006049A1 - Static mixer has input-sided admixing device, downstream mixing device for mixing two or multiple fluid components with different specific gravities, and vertical strands, in which mixing elements are arranged, which passes through mixture - Google Patents
Static mixer has input-sided admixing device, downstream mixing device for mixing two or multiple fluid components with different specific gravities, and vertical strands, in which mixing elements are arranged, which passes through mixture Download PDFInfo
- Publication number
- DE102012006049A1 DE102012006049A1 DE201210006049 DE102012006049A DE102012006049A1 DE 102012006049 A1 DE102012006049 A1 DE 102012006049A1 DE 201210006049 DE201210006049 DE 201210006049 DE 102012006049 A DE102012006049 A DE 102012006049A DE 102012006049 A1 DE102012006049 A1 DE 102012006049A1
- Authority
- DE
- Germany
- Prior art keywords
- static mixer
- mixing
- strand
- mixing elements
- vertical
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/02—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
-
- 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
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3141—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector mixers
-
- 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
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
- B01F25/31423—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction with a plurality of perforations in the circumferential direction only and covering the whole circumference
-
- 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
- B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
- B01F25/43161—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod composed of consecutive sections of flat pieces of material
-
- 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
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
- B01F25/431972—Mounted on an axial support member, e.g. a rod or bar
-
- 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
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
- B01F25/4331—Mixers with bended, curved, coiled, wounded mixing tubes or comprising elements for bending the flow
Abstract
Description
Bei der Herstellung von Schaumbeton muss in einen fließfähigen kompakten, inkompressiblen Materialstrom aus Zement, Zuschlagsstoffen und Wasser mit hohem spezifischen Gewicht ein, aufgrund eines hohen Luft- oder Gasgehalts kompressibler Fertigschaum mit niedrigem spezifischem Gewicht und großem Volumenanteil eingebracht und die Komponenten müssen anschließend mit einander vermischt werden, wobei ein vorgegebenes Volumenverhältnis von Schaum zu Zementschlempe eingehalten werden muss, um eine erforderliche Rohdichte des fertigen Schaumbeton zu erreichen.In the production of foam concrete must be introduced into a flowable compact, incompressible material flow of cement, aggregates and water with a high specific gravity, due to a high air or gas content compressible ready foam with low specific gravity and high volume fraction and the components must then be mixed with each other be, with a predetermined volume ratio of foam to cement slurry must be complied with in order to achieve a required density of the finished foam concrete.
Wegen der stark unterschiedlichen spezifischen Gewichte von Schaum und Zementschlempe und darüber hinaus der stark unterschiedlichen Konsistenz der beiden Mischkomponenten ist, wie die Praxis gezeigt hat, eine zuverlässige homogene Vermischung mit herkömmlichen Mischern nur ungenügend oder gar nicht möglich, weil die Schwerkraft die Vermischung behindert.Because of the very different specific weights of foam and cement slurry and beyond the greatly varying consistency of the two components is mixed, as practice has shown, a reliable homogeneous mixing with conventional mixers insufficient or not possible because gravity hinders mixing.
Da Zementschlempe allein zudem zu Anhaftungen neigt, ergeben sich immer wieder Verstopfungen, wenn die Durchmischung von Schaum und Zementschlempe ungenügend ist. Das Verstopfungsproblem erhöht sich noch, wenn aus Kosten- oder Beschaffungsgründen als Zuschlagsstoffe gebrochener Sand und/oder gebrochenes Gestein zum Einsatz kommt.In addition, as cement sludge alone tends to build up, blockages occur again and again when the mixing of foam and cement slurry is insufficient. The clogging problem is further increased if, for cost or procurement reasons, crushed sand and / or crushed rock are used as aggregates.
Erfolgt die Mischung vom Schaum und Schlempe nicht intensiv und ausdauernd genug, können sich anschließend die Komponenten wegen der unterschiedlichen spezifischen Gewichte unter dem Einfluss der Schwerkraft wieder entmischen.If the mixture of foam and vinasse is not intensive and persistent enough, then the components can separate again under the influence of gravity because of the different specific weights.
Ein intensiver und ausdauernder Mischvorgang kann jedoch zu einer Zerstörung des Schaumgefüges und als Folge davon zu einer undefinierten und ungenügenden Rohdichte des fertigen Schaumbeton führen.However, an intensive and enduring mixing process can lead to a destruction of the foam structure and as a consequence to an undefined and insufficient bulk density of the finished foam concrete.
Die vorliegender Erfindung zugrundeliegende Aufgabe besteht darin, ein Verfahren mit zugehöriger Vorrichtung vorzuschlagen, mit deren Hilfe vorstehende Schwierigkeiten und Unzulänglichkeiten überwunden werden können.The object underlying the present invention is to propose a method with associated device, with the help of which the above difficulties and shortcomings can be overcome.
Hierzu kommt ein Statikmischer zum Einsatz, dem eingangsseitig eine Einrichtung zum Einbringen von Schaum in die Zementschlempe vorgeschaltet ist, der in einem vertikalen Abschnitt der Zumischeinrichtung in den Materialstrom eingebracht wird, um nach Eintritt in den vertikalen Strang des Statikmischers durch die zugehörigen Mischelementen untergemischt zu werden. Bedarfsweise kann durch eine Richtungsänderung um 180° in einem weiteren Mischerstrang das Mischgut durch weitere zugehörige Mischelemente weiter homogenisiert werden.For this purpose, a static mixer is used, the input side of a device for introducing foam is placed in the cement mortar, which is introduced in a vertical portion of the admixing in the flow of material to be mixed in after entering the vertical strand of the static mixer by the associated mixing elements , If required, the mixture can be further homogenized by further associated mixing elements by a change in direction by 180 ° in another mixer strand.
Bei der Vermischung von Schaum und Zementschlempe in der Phase vertikaler Fließrichtung tritt die Auswirkung der Schwerkraft auf das Mischgut nicht negativ in Erscheinung, so dass sich die Vermischung leichter bewerkstelligen lässt, ohne dass die Schaumstruktur durch einen zu intensiven Mischvorgang beeinträchtigt oder zerstört wird. Gleichzeitig wird dadurch einer Verstopfung des Statikmischers vorgebeugt, weil der homogen eingemischte Schaum als Gleitmittel wirkt.When mixing foam and cement slurry in the vertical flow phase, the effect of gravity on the mix does not appear negative, making mixing easier without interfering or destroying the foam structure by over-mixing. At the same time a blockage of the static mixer is prevented, because the homogeneously blended foam acts as a lubricant.
Nachstehend wird die Erfindung in Verbindung mit den zugehörigen Zeichnungen an Hand eines Ausführungsbeispieles näher beschrieben. Von den Zeichnungen zeigt:The invention will be described in conjunction with the accompanying drawings with reference to an embodiment in more detail. From the drawings shows:
Statikmischer
Die Zumischeinrichtung
Der Zulauf
An dem Ausgang des zweiten vertikalen Strangs kann ein nicht dargestellter Schlauch an den Flansch
Über den Stutzen
In dem vertikalen Strang
Die Zumischeinrichtung nach
Der Fertigschaum wird zusammen mit dem Materialstrom über die Mischelemente
In dem zweiten, vertikalen Strang
Wie aus
Weiterhin können zwischen die Flansche
Wie die Erfahrung gezeigt hat, kann es vorteilhaft sein, den Schaumeintrag in einen aufsteigenden Materialstrom vorzunehmen und die Vermischung der beiden Komponenten in den vertikalen Strang des Statikmischers bei einer zunächst nach oben gerichteten Fließbewegung des Mischgutes vorzunehmen und die weitere Homogenisierung des Mischgutes in abwärtsgerichteter Fließbewegung vorzusehen. Zu diesem Zweck kann der Statikmischer in einfacher Weise um 180° gedreht betrieben werden.As experience has shown, it may be advantageous to carry out the foam entry into an ascending flow of material and to carry out the mixing of the two components in the vertical strand of the static mixer with an initially upward flow of the mix and provide the further homogenization of the mix in downward flow , For this purpose, the static mixer can be operated in a simple manner rotated by 180 °.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Statikmischerstatic mixer
- 22
- Zulauf bzw. EinlassInlet or inlet
- 33
- Zumischeinrichtungadmixing
- 44
- Vertikaler StrangVertical strand
- 55
- Mischelementmixing element
- 66
- 180° Rohrbogen180 ° elbow
- 77
- Mischerstrangmixer strand
- 88th
- Mischelementemixing elements
- 99
- 90° Rohrbogen90 ° elbow
- 1010
- Auslaßoutlet
- 1111
- Flanschkupplung bzw. Ein-/AusgangsflanschFlange coupling or input / output flange
- 1212
- Flanschkupplungflange
- 1313
- Flanschflange
- 1414
- Flanschflange
- 1515
- StutzenSupport
- 1616
- Verdrängungskörperdisplacer
- 1717
- UnterdruckbereichUnder pressure range
- 1818
- Ringkanalannular channel
- 1919
- Stichkanälebranch channels
- 2020
- Mischschaufelmixing paddle
- 2121
- Mischschaufelmixing paddle
- 2222
- Querträgercrossbeam
- 2323
- Aufnahmeadmission
- 2424
- StabRod
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210006049 DE102012006049A1 (en) | 2012-03-27 | 2012-03-27 | Static mixer has input-sided admixing device, downstream mixing device for mixing two or multiple fluid components with different specific gravities, and vertical strands, in which mixing elements are arranged, which passes through mixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210006049 DE102012006049A1 (en) | 2012-03-27 | 2012-03-27 | Static mixer has input-sided admixing device, downstream mixing device for mixing two or multiple fluid components with different specific gravities, and vertical strands, in which mixing elements are arranged, which passes through mixture |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012006049A1 true DE102012006049A1 (en) | 2013-10-02 |
Family
ID=49154356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210006049 Withdrawn DE102012006049A1 (en) | 2012-03-27 | 2012-03-27 | Static mixer has input-sided admixing device, downstream mixing device for mixing two or multiple fluid components with different specific gravities, and vertical strands, in which mixing elements are arranged, which passes through mixture |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102012006049A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140219047A1 (en) * | 2011-08-04 | 2014-08-07 | Holger Blum | Mixing and metering device for mixing and metering chemicals |
EP4176967A1 (en) | 2021-11-05 | 2023-05-10 | Fixit Trockenmörtel Holding AG | Device and method for mixing a mineral foam and application method for a mineral foam |
-
2012
- 2012-03-27 DE DE201210006049 patent/DE102012006049A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140219047A1 (en) * | 2011-08-04 | 2014-08-07 | Holger Blum | Mixing and metering device for mixing and metering chemicals |
US9162197B2 (en) * | 2011-08-04 | 2015-10-20 | Holger Blum | Mixing and metering device for mixing and metering chemicals |
EP4176967A1 (en) | 2021-11-05 | 2023-05-10 | Fixit Trockenmörtel Holding AG | Device and method for mixing a mineral foam and application method for a mineral foam |
DE102021128804A1 (en) | 2021-11-05 | 2023-05-11 | Fixit Trockenmörtel Holding AG | Device and method for mixing a mineral foam and application method for a mineral foam |
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Legal Events
Date | Code | Title | Description |
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R082 | Change of representative | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |