EP1695803B1 - Mixing tube - Google Patents

Mixing tube Download PDF

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Publication number
EP1695803B1
EP1695803B1 EP06400001A EP06400001A EP1695803B1 EP 1695803 B1 EP1695803 B1 EP 1695803B1 EP 06400001 A EP06400001 A EP 06400001A EP 06400001 A EP06400001 A EP 06400001A EP 1695803 B1 EP1695803 B1 EP 1695803B1
Authority
EP
European Patent Office
Prior art keywords
mixing tube
mixing
tube
impact
faces
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.)
Active
Application number
EP06400001A
Other languages
German (de)
French (fr)
Other versions
EP1695803A3 (en
EP1695803A2 (en
Inventor
Hans Schuller
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.)
Individual
Original Assignee
Individual
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
Priority claimed from EP05000200A external-priority patent/EP1559524A3/en
Application filed by Individual filed Critical Individual
Priority to EP06400001A priority Critical patent/EP1695803B1/en
Publication of EP1695803A2 publication Critical patent/EP1695803A2/en
Publication of EP1695803A3 publication Critical patent/EP1695803A3/en
Application granted granted Critical
Publication of EP1695803B1 publication Critical patent/EP1695803B1/en
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Anticipated expiration legal-status Critical

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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
    • 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
    • B01F23/54—Mixing liquids with solids wetting 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
    • 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
    • B01F25/433—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
    • 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
    • B01F25/4332—Mixers with a strong change of direction in the conduit for homogenizing the flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/12—Supplying or proportioning liquid ingredients

Definitions

  • the object of the invention is to find a simple, cost-effective and site-specific solution. This object is achieved with a post-mixing tube according to claim 1. Further advantageous embodiments are specified in the dependent claims.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Lubricants (AREA)
  • Detergent Compositions (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

A dry mixture of concrete and aggregates is mixed with water prior to bulk injection by tube or pipe to a structure. The mixing action of water to dry components is supplemented in a secondary mixing assembly which is a pipe (1) containing a rising V-shaped plane, translating through a saddle to a descending through a V-shaped plane.

Description

Ein wesentliches Problem beim Trockenspritzbetonverfahren ist u.a. das 100%ige Vermischen des trockenen Mischguts mit Wasser. Um dieses Problem zu lösen, gibt es zahlreiche Vorrichtungen, sowohl im Wasserdüsenbereich, als auch an anderen Stellen des Systems. Es ist jedoch nach wie vor ein Problem, trockenes Mischgut im Durchlaufmischen staubfrei mit Wasser zu vermischen. Es gibt bereits ein Nachmischrohr, wie in der Patentanmeldung EP 05 000 200.5 beschrieben. Dieses Nachmischrohr kann sich jedoch zusetzen.A major problem with the dry spray concrete method is, inter alia, the 100% mixing of the dry mix with water. To solve this problem, there are numerous devices, both in the water jet area, and in other parts of the system. However, it is still a problem to mix dry mix in continuous mixing dust-free with water. There is already a Nachmischrohr, as in the patent application EP 05 000 200.5 described. However, this post-mixing tube can become clogged.

Ein derartiges Nachmischrohr ist in der DE 20 2004 000 656 U1 gezeigt. Das Nachmischrohr weist einen zuführenden und einen abführenden Rohrabschnitt auf, zwischen denen ein Mischabschnitt mit schräg bezüglich dem durchströmenden Mischgut orientierten Aufprallflächen und Reflexionsflächen angeordnet ist. Anströmseitige und abströmseitige Aufprallflächen weisen eine im Querschnitt v-förmige Form auf, während die Reflexionsflächen im Querschnitt flach ausgebildet sind.Such a mixing tube is in the DE 20 2004 000 656 U1 shown. The post-mixing tube has an inlet and a discharge tube section, between which a mixing section is arranged with impact surfaces and reflection surfaces oriented obliquely with respect to the mixture to be flowed through. The flow-side and downstream-side impact surfaces have a cross-sectionally v-shaped form, while the reflection surfaces are flat in cross-section.

Die Aufgabenstellung der Erfindung besteht darin, eine einfache, kostengünstige und baustellengerechte Lösung zu finden. Diese Aufgabe wird gelöst mit einem Nachmischrohr gemäß Anspruch 1. Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben.The object of the invention is to find a simple, cost-effective and site-specific solution. This object is achieved with a post-mixing tube according to claim 1. Further advantageous embodiments are specified in the dependent claims.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen erläutert. Es zeigen:

Fig.I.
Nachmischrohr (1)
Axonometrie
Fig. II.
Nachmischrohr (1),
Zuführender Rohrabschnitt (1.1)
Abführender Rohrabschnitt (1.2)
Mischabschnitt (1.3)
Anordnung (2)
Erste Aufprallfläche (2.1)
Zweite Aufprallfläche (2.2)
Erste Reflexionsfläche (3.1)
Zweite Reflexionsfläche (3.2)
Axonometrie
Fig. III.
Nachmischrohr (1) mit zuführendem Rohr (5)
und Aufnahmeteil (6)
Ansicht und Schnitt
Fig. IV.
Nachmischrohr (1) mit zusätzlicher
Aufprallfläche (4.1)
Axonometrie
Fig. V.
Nachmischrohr (1) mit zusätzlicher
Aufprallfläche (4.1)
Ansicht und Schnitt
Fig. VI.
Nachmischrohr (1) mit zusätzlichen
Teilaufprallflächen (4.1 a und 4.1 b)
Axonometrie
Fig. VII.
Nachmischrohr (1) mit zusätzlichen
Anschlussflächen (2.3)
Ansicht und Schnitt
The invention will be explained below with reference to embodiments with reference to the drawings. Show it:
Fig.I.
Post-mixing pipe (1)
axonometry
Fig. II.
Post-mixing tube (1),
Feeding pipe section (1.1)
Leaking pipe section (1.2)
Mixing section (1.3)
Arrangement (2)
First impact surface (2.1)
Second impact surface (2.2)
First reflection surface (3.1)
Second reflection surface (3.2)
axonometry
Fig. III.
Post-mixing pipe (1) with feeding pipe (5)
and receiving part (6)
View and cut
Fig. IV.
Post-mixing pipe (1) with additional
Impact surface (4.1)
axonometry
Fig. V.
Post-mixing pipe (1) with additional
Impact surface (4.1)
View and cut
Fig. VI.
Post-mixing pipe (1) with additional
Partial impact surfaces (4.1 a and 4.1 b)
axonometry
Fig. VII.
Post-mixing pipe (1) with additional
Connection surfaces (2.3)
View and cut

Im Nachmischrohr trifft das mit Wasser benetzte Mischgut zunächst auf die Aufprallflächen (2.1) und (4.1) und wird von diesen auf die Reflexionsflächen (3.1) und (3.2) umgelenkt. Ein weiteres Umlenken erfolgt beim Auftreffen auf die Aufprallfläche (2.2) von wo aus das Mischgut weiter nach unten und vorne ins Rohr geblasen wird.In the post-mixing tube, the wetted material first meets the impact surfaces (2.1) and (4.1) and is deflected by these onto the reflection surfaces (3.1) and (3.2). Another deflection occurs when hitting the impact surface (2.2) from where the mix is further blown down and forward into the pipe.

Die Aufprallflächen (2.2) gehen mit einer oder mehreren Anschlussflächen (2.3) flacher in den nachfolgenden unteren Rohrbereich konisch oder konkav oder aber flach über.The impact surfaces (2.2) go with one or more connection surfaces (2.3) shallower in the subsequent lower tube area conical or concave or flat.

Durch diesen Umlenkprozess erfolgt ein intensives Vermischen des Mischguts mit Wasser, sodass die Staubbildung beim Austritt des Mischguts aus dem Rohr vernachlässigbar gering bzw. nicht vorhanden ist. Der Rückprall wird durch die gute Durchmischung des Mischguts mit Wasser ebenfalls wesentlich geringer.This deflection process results in intensive mixing of the mixed material with water, so that dust formation on leaving the mixture from the pipe is negligible or absent. The rebound is also much lower due to the good mixing of the mix with water.

Eine Ausführung des Nachmischrohres ist so ausgeführt, dass die Wasserdüsen für die Benetzung des Mischgutes im verlängerten, zuführenden Rohr (5) angeordnet sind. Dieses zuführende Rohr (5) wird in ein Aufnahmeteil (6) mit Wasseranschluss geschoben. 3An embodiment of the post-mixing tube is designed so that the water nozzles for the wetting of the mixed material in the extended, feeding tube (5) are arranged. This feeding tube (5) is pushed into a receiving part (6) with water connection. 3

Claims (14)

  1. Mixing tube for mixing shotcrete with water, the said mixing tube including a supplying tube section (1.1) that is connected downstream of a water mixing part, a discharging tube section (1.2) and a mixing section (1.3), which is disposed in between the two and includes an arrangement (2) of, with reference to the traversing shotcrete, inclinedly orientated, first and second impact faces (2.1 and 2.2) and reflection faces (3.1 and 3.2), wherein the first and/or the second impact faces (2.1, 2.2) have a V-shaped or concave form that is conical in cross-section and they concentrate the flowing mixture in the cross-sectional direction, characterised in that at least the reflection face (3.2) on the discharge side has two part reflection faces (3.2a and 3.2b) that are set at an angle one relative to the other or are concave.
  2. Mixing tube according to claim 1, characterised in that the first impact face (2.1) is disposed opposite the supplying and/or discharging tube section at an angle of between 30° and 70°, the second impact face (2.2) is disposed at an angle of between 20° and 60° and the refection face (3.2) is disposed at an angle of between 45° and 80°.
  3. Mixing tube according to claim 1 or 2, characterised in that the impact faces (2.1 and 2.2) have two part impact faces (2.1 a, 2.1 b, 2.2a and 2.2b) that are set at an angle one relative to the other.
  4. Mixing tube according to one of the preceding claims, characterised in that the first and/or the second impact faces (2.1) are shortened in the supplying and/or discharging region and are closed off towards the tube by means of a step.
  5. Mixing tube according to claim 4, characterised in that the first and/or second impact faces (2.2) are shortened in the lower region and are closed off downwards towards the tube.
  6. Mixing tube according to one of the preceding claims, (characterised in) that the second impact faces (2.2) merge with one or more connecting faces (2.3) flatter into the following lower tube region in a conical or concave or even flat manner.
  7. Mixing tube according to one of the preceding claims, characterised in that all impact faces and reflection faces as well as tube sections (1.1, 1.2) are coated over the entire surface or only over part of the surface with hard and/or resilient materials.
  8. Mixing tube according to one of the preceding claims, characterised in that the entire mixing tube is made from metal, ceramics, plastics material or a similar material.
  9. Mixing tube according to one of the preceding claims, characterised in that parts of the mixing tube are made from metal, ceramics, plastics material or a similar material.
  10. Mixing tube according to one of the preceding claims, characterised in that the mixing tube is made completely or partially of resilient material.
  11. Mixing tube with wetting with water according to one of the preceding claims, characterised in that water nozzles are provided directly in front of or in the mixing tube in the extended supplying tube (5).
  12. Mixing tube with wetting with water according to claim 10 or 11, characterised in that the supplying tube (5) is provided with water nozzles and is disposed so as to be removable from the receiving part (6) for cleaning the water nozzles and the mixing chamber.
  13. Mixing tube according to one of the preceding claims, characterised in that an additional impact face (4.1) is disposed directly downstream of the supplying tube section (1.1).
  14. Mixing tube according to one of the preceding claims, characterised in that the impact face (4.1) has two part impact faces (41.a and 4.1 b) set at an angle one relative to the other.
EP06400001A 2005-01-07 2006-01-02 Mixing tube Active EP1695803B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06400001A EP1695803B1 (en) 2005-01-07 2006-01-02 Mixing tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05000200A EP1559524A3 (en) 2004-01-17 2005-01-07 Mixing tube for gunned concrete
EP06400001A EP1695803B1 (en) 2005-01-07 2006-01-02 Mixing tube

Publications (3)

Publication Number Publication Date
EP1695803A2 EP1695803A2 (en) 2006-08-30
EP1695803A3 EP1695803A3 (en) 2006-09-20
EP1695803B1 true EP1695803B1 (en) 2008-06-04

Family

ID=39495099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06400001A Active EP1695803B1 (en) 2005-01-07 2006-01-02 Mixing tube

Country Status (3)

Country Link
EP (1) EP1695803B1 (en)
AT (1) ATE397519T1 (en)
DE (1) DE502006000852D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011151055A1 (en) 2010-05-31 2011-12-08 Johann Schuller Re-mixing device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390281A (en) * 1979-04-23 1983-06-28 Muskogee Environmental Conservation Co. Slurry gun
JP2001232164A (en) * 2000-02-22 2001-08-28 Maeda Corp Kneading device
DE20106434U1 (en) * 2001-04-12 2001-10-25 Opitz, Günther, 45721 Haltern Deflection chamber mixing tube
DE202004000656U1 (en) * 2003-01-23 2004-04-01 Schuller, Hans Concrete mixing pipe has internal rising V-shaped plane translating through a saddle to a descending V-shaped plane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011151055A1 (en) 2010-05-31 2011-12-08 Johann Schuller Re-mixing device

Also Published As

Publication number Publication date
ATE397519T1 (en) 2008-06-15
EP1695803A3 (en) 2006-09-20
EP1695803A2 (en) 2006-08-30
DE502006000852D1 (en) 2008-07-17

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