EP1758672A1 - Dispositif melangeur et procede permettant d'ajouter un adjuvant a un melange apte au pompage - Google Patents

Dispositif melangeur et procede permettant d'ajouter un adjuvant a un melange apte au pompage

Info

Publication number
EP1758672A1
EP1758672A1 EP05752749A EP05752749A EP1758672A1 EP 1758672 A1 EP1758672 A1 EP 1758672A1 EP 05752749 A EP05752749 A EP 05752749A EP 05752749 A EP05752749 A EP 05752749A EP 1758672 A1 EP1758672 A1 EP 1758672A1
Authority
EP
European Patent Office
Prior art keywords
mixing
additive
mixture
concrete
mixing device
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.)
Withdrawn
Application number
EP05752749A
Other languages
German (de)
English (en)
Inventor
Alexander Bleibler
Cyrill Spirig
Alexander Stücheli
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.)
Sika Technology AG
Original Assignee
Sika Technology AG
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 Sika Technology AG filed Critical Sika Technology AG
Priority to EP05752749A priority Critical patent/EP1758672A1/fr
Publication of EP1758672A1 publication Critical patent/EP1758672A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1246—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with feeding devices
    • 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
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/47—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt
    • 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
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • 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
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3132—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/50—Pipe mixers, i.e. mixers wherein the materials to be mixed flow continuously through pipes, e.g. column mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means
    • B01F27/621—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means the liquid being fed through the shaft of the stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B01F27/721—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle
    • B01F27/722—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle the helices closely surrounded by a casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/28—Mixing cement, mortar, clay, plaster or concrete ingredients

Definitions

  • the invention is based on a mixing device according to the preamble of the first claim.
  • the invention is also based on a method for adding an additive to a pumpable mixture according to the preamble of the independent method claim.
  • a static mixer is used to mix an additive, such as an activator with fine mortar. If you also use such static mixers on conventional concrete, the static mixer becomes blocked due to the coarse gravel content and the mixer can even be destroyed.
  • the addition of the activator to the ready-mixed concrete and the mixing is therefore often already carried out in the vehicle drum.
  • the activator liquefies the concrete and starts the setting mechanism.
  • the disadvantage is that after the activator has been added to the concrete in the vehicle drum, not much time must pass before the activated concrete is processed in the building, otherwise it will harden beforehand.
  • the invention is based on the object of specifying, in a mixing device and a method of the type mentioned at the outset, a mixing device which makes it possible to introduce additives rapidly into a plastic-viscous mixture and to achieve thorough mixing.
  • the essence of the invention is therefore that at least one in a line
  • Injection means for adding additive is arranged in the mixture that a mixing space is arranged downstream, in which the additive is dynamically mixed with the plastic-viscous mixture.
  • the advantages of the invention can be seen, inter alia, in the fact that good mixing of the plastic-viscous mixture and additive is achieved. This with a relatively short mixing section and that the mixing can be carried out shortly before the processing location.
  • the one shown here The method and the device are particularly suitable for the continuous addition and mixing of very small amounts of chemical additives into a pumpable mixture with plastic-viscous behavior, in particular into a granule-suspension mixture such as concrete.
  • Figure 1 shows schematically the processing of concrete in a building.
  • FIG. 2 shows schematically the mixing device according to the invention; 3a schematically means for rough distribution for the additive;
  • FIG. 3b shows a detailed illustration of the injection means for the additive from FIG. 3a;
  • FIG. 4b shows a detailed illustration of the injection means for the additive from FIG. 4a;
  • FIG. 4c shows a detailed illustration of the injection means for the additive from FIG. 4a;
  • 6 shows a mixing element with injection means for the additive in partial cross section; 7 schematically possible mixing elements; 8 schematically shows a further embodiment of the mixing room; 9 schematically shows a further embodiment of the mixing room with several mixing shafts; Fig. 10 mixing with two waves corresponding to Fig. 9; 11 schematically shows a further embodiment of the mixing room.
  • FIG. 1 schematically shows the processing of a plastic-viscous mixture, here of concrete 10 in a building. Concrete is delivered to the construction site by means of a transport vehicle 1. It is not shown that the concrete is usually transported in a rotating drum mounted on the transport vehicle. This concrete was treated in the concrete plant with additives that the hydration or
  • the setting mechanism is delayed by several hours.
  • This concrete generally corresponds to a pumpable granulate-suspension mixture with plastic-viscous behavior.
  • the concrete 10 is temporarily stored in a container 2 or pumped directly from the vehicle to the construction site using a pump 3 and a line 4 under pressure. Such a line can be used to transport the concrete over several 100 meters or even a few kilometers.
  • additives 5 also additive called
  • activators such as a setting accelerator
  • the concrete 10 'mixed with the additive 5 is then correspondingly on the construction site at the processing site 20 processed.
  • the processing of the concrete can be carried out by any method, for example by spraying, pouring, etc.
  • the distance from the mixing device to the processing site is in itself arbitrary, but is advantageously chosen to be as short as possible so that as little waste is generated or activated concrete in the line remains and may make it unusable.
  • the present mixing device it is also possible to fill the line from the mixing device to the processing location with non-activated concrete 10 by no longer adding any activator in the mixing device. This prevents the line from becoming blocked.
  • the mixing device shown here allows small
  • additives to the plastic-viscous mixture, especially in a ratio of 1: 100 to 1: 1000.
  • This mixing device 6 comprises a feed line 8 and a mixing space 9.
  • the diameter of the mixing space 9 is advantageously larger than that of the feed line 8 in order to reduce the flow rate through the mixing space.
  • the mixing chamber is preferably shaped cylindrically because of the high pressures and can have a small volume of less than 100 liters.
  • the present mixing process is preferably carried out as an inline mixing process which is under pressure.
  • a mixing element (not shown) is arranged in the mixing chamber and can be driven by a drive 13 via a shaft 12. Additional admixture 5 can be introduced into the concrete through the shaft 12 and the mixing element arranged in the mixing chamber 9.
  • Additive 5 can also be used in the initial area of the mixing chamber 9 are injected, wherein the injection means to be used can be shaped analogously to the injection means 14, 14a.
  • the additive can thus be introduced simultaneously at several points over the line cross-section and homogeneously distributed or mixed both axially and radially through the downstream mixing space. This results in a homogeneous distribution of the admixture in the concrete 10 'at the end of the mixing room, so that the concrete is activated evenly.
  • Bending the feed line has several advantages. The bend allows the drive and the shaft for the mixing chamber to be arranged on one axis without the mixture flow being impeded.
  • injection means 14a can be arranged in the bend, via which additive can be introduced into the edge region of the pumped concrete despite the lubricating layer in the edge region.
  • the additive 5 is advantageously added at the same or a higher flow rate than that of the concrete. The relative speed of the admixture is then greater than zero compared to the concrete. This ensures a safe injection of the additive and that the nozzles to be used for the injection do not become blocked.
  • the means 11 for the rough distribution of the additive are shown in more detail in FIG. 3a.
  • the additive 5 is introduced into the concrete by means of several nozzles 15 via injection means 14 arranged in the feed line 8.
  • the injection means 14 are shown in FIG. 3 as tubes with bores as nozzles 15, but can also be shaped differently.
  • the additive is not caused by turbulence is mixed, but remains as a "thread" for a long time.
  • the injection means 14, 14a arranged over the line length and cross-section place several "threads" distributed over the cross-section in the laminar concrete flow. Since mixtures such as concrete create a smear layer on the edge of the cross-section of the line and because of the rheological properties of the concrete, the additive is advantageously added over the entire cross-section and not at the edge so that the additive can be introduced into the concrete.
  • the nozzles 15 in the injection means 14 are preferably arranged such that the additive is injected in the flow direction of the concrete 10. As a result, the nozzles 15 are not blocked by the concrete and the additive added forms a thread-like structure in the concrete and does not remain in the lubricating layer, as would happen when it was added via wall openings in the feed line 8.
  • the feed line 8 has an extension in which an injection means 14 'is arranged.
  • the injection means 14 ' serves as a flow divider which divides the concrete stream 10 into two parts.
  • the additive 5 is introduced into the concrete at the downstream end of the injection means 14 'by means of several nozzles 15, see FIGS. 4b, 4c.
  • the injection means 14 ' has an essentially elliptical cross section with sharp leading and trailing edges.
  • This injection means 14 ' is built relatively solid, for example to be able to withstand stones in the concrete and thus prevent damage to the injection means.
  • the cross section of the feed line 8 is expanded in accordance with the dimensions of the injection means, so that the concrete flow flows evenly and the flow of the concrete is influenced as little as possible. If desired, the cross-section can also be adjusted so that in the area of Injection of the additive accelerates or slows the flow.
  • injection means 14a can also be arranged here in the edge region of the feed line, in the region of the nozzles 15, in order to spray additives in the edge region.
  • the injection means 14 ' can be aligned differently in the feed means 8.
  • the injection means 14 ' can be aligned differently in the feed means 8.
  • FIGS. 4b and 4c show the admixture distribution in the concrete downstream of two injection means 14 'corresponding to FIGS. 4b and 4c. There is a good distribution of the admixture in the concrete, which can be further improved by additional injection means.
  • the addition of additives via the injection means 14, 14 ', 14a is advantageously carried out in such a way that the additive volume flow is adapted everywhere proportionally to the volume flow of the granule-suspension mixture, and thus the same amount of additive is distributed over the entire cross section. This means that less additive is added on the margins than in the middle area of the line. This is because the granulate-suspension mixture has a much lower flow velocity at the edge than in the middle. Adding the same amount of additive immediately on the edge would cause the additive to accumulate on the edge opposite the central area of the line.
  • FIG. 5 shows the mixing space 9 in detail.
  • several stages of mixing elements 16 are arranged on the shaft 12 in the direction of flow, but only one mixing element can also be used.
  • the shaft 12 is set in rotation via the drive, not shown here that the thread-like admixture already added is cross-mixed in the concrete.
  • the shape of the mixing elements is arbitrary per se, with some possible embodiments being described in the following FIG. 7.
  • Additive 5 can also be fed into the concrete directly via the mixing elements 16, the nozzles being shaped analogously to the injection means.
  • the addition of the additive takes place via the shaft 12.
  • Static mixing elements 17 can also be arranged at the edge of the mixing space 9, which support the mixing process of the mixing elements 16.
  • the number, shape and position of the static mixing elements 17 mounted on the wall or also inside are such that they do not cause blockage.
  • the static mixing elements 17 prevent offsets.
  • the shaft 12 which is supported by a bearing 12a, does not necessarily have to lie on the central axis of the line 8, but in individual cases can also be arranged next to the central axis for better mixing, as is symbolized in the figure by the double arrow.
  • the shaft 12 and the mixing element 16 have bores through which the additive 5 is directed to nozzles 15 through which the additive exits.
  • the nozzles 15 are preferably arranged in the mixing element 16 such that the admixture is injected in the flow direction of the concrete 10. As a result, the nozzles 15 are not blocked by the concrete.
  • the nozzles can of course be arranged over the entire radial extent of the mixing element 16 or only over certain partial areas.
  • the nozzles do not have to be arranged symmetrically either, so that the mixing can be improved depending on the design by a certain asymmetry.
  • mixing elements 16 are a) propeller stirrers, b) Disc stirrer, c) toothed disc stirrer, d) inclined blade stirrer, e) impeller stirrer, f) anchor stirrer, g) grid stirrer or blade stirrer, h) cross bar stirrer, i) MIG stirrer and k) spiral stirrer.
  • propeller stirrers b) Disc stirrer, c) toothed disc stirrer, d) inclined blade stirrer, e) impeller stirrer, f) anchor stirrer, g) grid stirrer or blade stirrer, h) cross bar stirrer, i) MIG stirrer and k) spiral stirrer.
  • these types of mixing elements can be used alone, in combination or in a modification.
  • the mixing element should preferably be designed such that it generates as little resistance as possible in the concrete.
  • mixing space 8 shows a further embodiment of the mixing space 9.
  • stages of mixing elements 16 are arranged as spiral stirrers in the mixing chamber on the shaft 12. Additive 5 is added to the concrete during the transverse mixing via the shaft 12 and the mixing elements 16. This configuration of the mixing element generates little resistance in the concrete and allows the admixture to be mixed evenly.
  • two or more nested spiral stirrers can also be used, so that the mixing is improved and the addition of additives over the entire cross section is made possible.
  • FIG. 9 shows a further embodiment of a mixing room 9.
  • Two shafts 12 with several stages of mixing elements 16 are arranged in the flow direction in the mixing space.
  • the two shafts 12 preferably rotate against each other and the mixing elements can interlock, but if possible without touching one another.
  • the intermeshing of the mixing elements is shown in detail in FIG. 10.
  • the effect of this mixture, i.e. stretching and folding, or the fine distribution of the admixture in the concrete, is shown schematically on the right.
  • any number of additional waves can be used.
  • FIGS. 11a and 11b A further embodiment of the mixing space 9 is shown in FIGS. 11a and 11b.
  • the shaft 12 'for driving the mixing elements 16' is not in here Mixing room arranged, but outside.
  • Mixing elements 16 'rotating around the mixing space are driven by means of the shaft 12', which is driven by a drive 13.
  • the drive is advantageously carried out via gearwheels 18 arranged on the shaft 12 ', which mesh with the ring gear 19 of the mixing elements 16'.
  • the actual mixing elements protrude into the concrete conveyed through the mixing room and mix the concrete and the admixture, especially in the edge area.
  • the extent to which the mixing elements protrude must be adapted to the particular circumstances, such as, for example, the plastic-viscous mixture, the geometry of the mixing room, etc.
  • Additive 5 can also be added to the concrete here during the transverse mixing via the mixing elements 16 '. This configuration of the mixing element generates little resistance in the concrete and allows the admixture to be
  • any additives or other substances can be used which are to be mixed into a plastic-viscous mixture in relatively small amounts.
  • the plastic-viscous mixture to be used is also arbitrary in itself.
  • such mixing devices as described above can be used not only for mixing admixtures into concrete, but also wherever something has to be mixed into a mixture with plastic-viscous behavior. Fields of application are therefore in the construction industry, oil refining, pyrometallurgical addition in the extraction of metals from ores, alloys of metals, pasta production, incorporation of additives in doughs, e.g. nuts in bread, introduction of berries etc.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

L'invention concerne un dispositif mélangeur (6) permettant d'ajouter un adjuvant à un mélange (10) apte au pompage et ayant un comportement plastique visqueux, notamment du béton. Ce mélange est transporté dans une conduite (4, 8). Au moins un moyen d'injection (14, 14', 14a) implanté dans la conduite (8) permet d'ajouter un adjuvant (5) au mélange (10). Dans un compartiment de mélange (9) situé en aval, l'adjuvant (5) est mélangé de manière dynamique au mélange (10) plastiquement visqueux.
EP05752749A 2004-05-28 2005-05-30 Dispositif melangeur et procede permettant d'ajouter un adjuvant a un melange apte au pompage Withdrawn EP1758672A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05752749A EP1758672A1 (fr) 2004-05-28 2005-05-30 Dispositif melangeur et procede permettant d'ajouter un adjuvant a un melange apte au pompage

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04102373A EP1600205A1 (fr) 2004-05-28 2004-05-28 Mélangeur et procédé pour l'addition d'un additif à un mélange pompable
EP05752749A EP1758672A1 (fr) 2004-05-28 2005-05-30 Dispositif melangeur et procede permettant d'ajouter un adjuvant a un melange apte au pompage
PCT/EP2005/052447 WO2005115600A1 (fr) 2004-05-28 2005-05-30 Dispositif melangeur et procede permettant d'ajouter un adjuvant a un melange apte au pompage

Publications (1)

Publication Number Publication Date
EP1758672A1 true EP1758672A1 (fr) 2007-03-07

Family

ID=34929140

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04102373A Withdrawn EP1600205A1 (fr) 2004-05-28 2004-05-28 Mélangeur et procédé pour l'addition d'un additif à un mélange pompable
EP05752749A Withdrawn EP1758672A1 (fr) 2004-05-28 2005-05-30 Dispositif melangeur et procede permettant d'ajouter un adjuvant a un melange apte au pompage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04102373A Withdrawn EP1600205A1 (fr) 2004-05-28 2004-05-28 Mélangeur et procédé pour l'addition d'un additif à un mélange pompable

Country Status (2)

Country Link
EP (2) EP1600205A1 (fr)
WO (1) WO2005115600A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012042012A1 (fr) * 2010-10-01 2012-04-05 Sika Technology Ag Appareil mélangeur pour mélanges pompables et procédé s'y rapportant
EP2436496A1 (fr) * 2010-10-01 2012-04-04 Sika Technology AG Dispositif de mélange pour mélanges aptes au pompage, en particulier pour béton projeté
EP3939695A1 (fr) * 2020-07-14 2022-01-19 Sika Technology Ag Dispositif et procédé d'ajout et de mélange d'un additif dans un mélange durcissable par voie hydraulique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2161508A (en) * 1938-08-12 1939-06-06 Claude W Ensor Molasses feed mixer
DE1058022B (de) * 1957-06-27 1959-05-27 Bayer Ag Verfahren und Vorrichtung um mindestens eine Zusatzfluessigkeit einer im kontinuierlichen Strom fliessenden viskosen Masse durch Umruehren beizumischen
DK123146B (da) * 1966-12-19 1972-05-23 H Larsen Apparat til indføring af et første fluidum i et andet.
AT413017B (de) * 2002-03-21 2005-10-15 Andritz Ag Maschf Verfahren und vorrichtung zum einmischen von fluiden in fliessfähige medien
US6869213B2 (en) * 2002-07-17 2005-03-22 Itt Manufacturing Enterprises, Inc. Apparatus for injecting a chemical upstream of an inline mixer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005115600A1 *

Also Published As

Publication number Publication date
EP1600205A1 (fr) 2005-11-30
WO2005115600A1 (fr) 2005-12-08

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