WO2001005494A1 - Method and device for producing foams, especially foamed porous light-density materials - Google Patents
Method and device for producing foams, especially foamed porous light-density materials Download PDFInfo
- Publication number
- WO2001005494A1 WO2001005494A1 PCT/EP2000/006687 EP0006687W WO0105494A1 WO 2001005494 A1 WO2001005494 A1 WO 2001005494A1 EP 0006687 W EP0006687 W EP 0006687W WO 0105494 A1 WO0105494 A1 WO 0105494A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- injection pump
- foam
- foaming
- sludge
- additives
- Prior art date
Links
Classifications
-
- 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
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
-
- 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
- B01F25/311—Injector mixers in conduits or tubes through which the main component flows for mixing more than two components; Devices specially adapted for generating foam
Definitions
- the invention relates to a process for the production of a foam, in particular a foamed porous substance, in which a slurry which contains a carrier liquid and a foaming agent and optionally further additives, such as, for example, retarders, accelerators, stabilizers, liquefiers, binders and fillers, comprises Addition of a gas into a foam or pores is easily converted.
- the invention is therefore based on the object of developing a method and a device of the type mentioned at the outset so that it is independent of the type of carrier liquids used and the additives and depending on how the pressure and mixing ratios are expediently set optimal results should always be achieved, even if the system is to operate in discontinuous mode.
- the sludge is first conveyed to an intermediate store from which it is subsequently switched, a controllable air supply valve having foaming device is supplied.
- This method according to the invention is preferably carried out in such a way that a carrier liquid, or a sludge containing this carrier liquid and the additives, is mixed with the foaming agent in a first injection pump and introduced into the intermediate store, and that a second injection pump is used as the foaming device , which is used for the foaming gas under suction of the sludge from the intermediate store under pressure.
- the provision according to the invention of an intermediate store between the first injection pump, which only serves to mix the carrier liquid with all the desired additives, and the second, the actual foaming with the addition of a gas, for example air, has the advantage that accurate and uniform metering
- the additive is also possible in the smallest quantities and that the pressure ratios of the first injection pump and in the second injection pump can also be set and regulated completely independently of one another. This in turn enables the production of light pores with a dry bulk density below 100 kg / m 3 .
- the process for the production of the foam or a pore lightweight differs only in the additives used. If only a carrier liquid, a foaming agent and, if appropriate, a stabilizer are used, a foam is produced therefrom. If other binders, for example cement or the like and, if appropriate, also additives such as granules or the like are also added, a foamed lightweight pore material can be produced instead of a foam. Regardless of whether a foam or a foamed pore lightweight material is to be produced, it can be provided in a further development of the invention that the carrier liquid and / or the additives, and / or the sludge and / or the foaming gas via adjustable metering devices, in particular through flow meters, pumps and control valves.
- the various metering devices have to be adjusted by hand, for example by means of appropriate adjusting wheels, in Another embodiment of the invention has proven to be particularly expedient if the metering devices are regulated in a coordinated manner to achieve the desired properties of the foam or of the porous lightweight material via a program-controlled electrical control device.
- Both a foam and a foamed pore lightweight material can be produced by such a program-controlled electrical control device in a variable composition, in addition to being freely adjustable and programmable, a large number of standard programs can preferably be provided, which are suitable for a very wide variety of applications and for the most varied Types of foams or foamed porous substances automatically specify the suitable production conditions and ensure that the optimal amounts of additives or additives are added to a certain amount of the carrier liquid, and both the mixing under the optimal pressure conditions and the foaming in the second injection pump in each case under the most suitable Process printing takes place.
- the sludge is produced as a function of the fill level of the intermediate store, ie. H. the first
- Injection pump continuously up to a certain fill level of the intermediate Storage manufactures, regardless of whether there is consumption on the second injection pump or not.
- This continuous or quasi-continuous operation of the first injection pump allows the sludge to be manufactured in a much more uniform manner and the additives can actually be sucked in in a metered manner, which results in very discontinuous consumption of the frothing device and a correspondingly simultaneous discontinuous operation of the first , injection pump serving to admix the aggregates would not be the case.
- the operation according to the invention with the intermediate store, to which the first injection pump delivers until it is filled to a certain extent, has the advantage that, in addition to the more uniform mixture and the resulting better quality of the foam or the foamed pore lightweight material, the device parts are also less are worn out and consequently the system can run longer and maintenance-free.
- a device which is characterized in that the outlet of a first injection pump with an upstream liquid feed pump and an intake inlet for additives with the inlet and the inlet inlet of a second injection pump provided with an upstream gas feed device with the outlet of the buffer store connected is.
- the gas supply device can either be a gas pump or possibly also a gas pressure accumulator, for example a high-pressure gas bottle with a connected control outlet valve.
- metering devices are at least partially controllable by remote control and are connected to a programmable control unit.
- the device according to the invention comprises a first injection pump 1 with an inlet 3 leading to a nozzle 2, to which either a carrier liquid, such as water (especially in the production of a foam), or also a pre-slurry consisting of a carrier liquid and additives, such as binders, fillers, granules or the like.
- a carrier liquid such as water (especially in the production of a foam)
- additives such as binders, fillers, granules or the like.
- the injection pump 1 has a suction inlet 4 for additional additives, in particular for a foaming agent, which is sucked in under the action of the negative pressure generated by the nozzle 2 and mixed intimately with the carrier liquid or the sludge becomes.
- the sludge 6 produced in this way is conveyed into a buffer store 7, which is connected with its outlet 8 to the suction inlet 9 of a second injection pump 10.
- a second injection pump 10 constructed with the injection pump 1, also with a nozzle 11 and an inlet 12, with this inlet being connected to a gas pressure accumulator, that is to say either a gas bottle with a pressure reducing valve or else a gas feed pump which processes simple ambient air as a foaming gas.
- the gas emerging from the nozzle 11 sucks the sludge out of the intermediate container 7 and brings it to the end of the preferably conically expanded discharge foam tube 13 to foam, so that at 14 a foam or, when the corresponding binders and fillers are added, a foamed pore-type light substance exit.
- the pumps for supplying the injection pump 1 and 10 and all other metering devices and valves, which are not shown in the drawing for the sake of simplicity, and, if appropriate, the adjustable nozzles 2 and 11 can be NEN both adjustable by hand and preferably at least partially remotely controllable and connected to a programmable control unit.
- production conditions that are optimally adapted to the respective desired conditions i.e. the type and degree of foaming of a foam and the dry bulk density of a pore lightweight material, can be achieved.
- the intermediate container 7 is equipped with a fill level measuring device, indicated only schematically as a box 15, for the sludge introduced by the injection pump 1 into the inlet 16 of the intermediate container, which is also connected to the programmable control unit already mentioned in order to avoid that the first injection pump in must be operated intermittently like the second injection pump, which is often switched on and off very discontinuously when working on a construction site.
- the first injection pump 1 conveys sludge into the intermediate container until it is filled to a predetermined fill level, regardless of whether the second injection pump is working or not, ie regardless of whether foam or porous substance should actually be produced at the moment.
- the first injection pump either works continuously (if there is a constant need for the second injection pump) or at least operates almost continuously over a longer period of time and is not always switched on and off at very short notice. This brief switching on and off would severely impair the exact mixing and suction of the carrier liquid or the pre-sludge and the additives in the injection pump 1 and their intimate mixing, and would thus prevent foams or porous substances that actually have optimally stable and uniform product properties from being achieved.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU66930/00A AU6693000A (en) | 1999-07-15 | 2000-07-13 | Method and device for producing foams, especially foamed porous light-density materials |
AT00954492T ATE232753T1 (en) | 1999-07-15 | 2000-07-13 | METHOD AND DEVICE FOR PRODUCING FOAM, IN PARTICULAR FOAMED POROLEIGHT MATERIALS |
EP00954492A EP1198287B1 (en) | 1999-07-15 | 2000-07-13 | Method and device for producing foams, especially foamed porous light-density materials |
DE50001291T DE50001291D1 (en) | 1999-07-15 | 2000-07-13 | METHOD AND DEVICE FOR PRODUCING FOAMS, ESPECIALLY FOAMED POROUS LIGHT MATERIALS |
DK00954492T DK1198287T3 (en) | 1999-07-15 | 2000-07-13 | Method and apparatus for making foam, especially foamed porous lightweight materials |
PL00353402A PL353402A1 (en) | 1999-07-15 | 2000-07-13 | Method and device for producing foams, especially foamed porous light-density materials |
JP2001510573A JP2003504191A (en) | 1999-07-15 | 2000-07-13 | Method and apparatus for the production of foams, especially foamed porous light materials |
CA002379226A CA2379226A1 (en) | 1999-07-15 | 2000-07-13 | Method and device for producing foams, especially foamed porous light-density materials |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19933245A DE19933245A1 (en) | 1999-07-15 | 1999-07-15 | Method and device for producing foams, in particular foamed porous substances |
DE19933245.2 | 1999-07-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001005494A1 true WO2001005494A1 (en) | 2001-01-25 |
Family
ID=7914924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/006687 WO2001005494A1 (en) | 1999-07-15 | 2000-07-13 | Method and device for producing foams, especially foamed porous light-density materials |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP1198287B1 (en) |
JP (1) | JP2003504191A (en) |
AT (1) | ATE232753T1 (en) |
AU (1) | AU6693000A (en) |
CA (1) | CA2379226A1 (en) |
CZ (1) | CZ2002155A3 (en) |
DE (2) | DE19933245A1 (en) |
DK (1) | DK1198287T3 (en) |
ES (1) | ES2193101T3 (en) |
HU (1) | HUP0202633A2 (en) |
PL (1) | PL353402A1 (en) |
TR (1) | TR200200059T2 (en) |
WO (1) | WO2001005494A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10110917C2 (en) * | 2001-03-07 | 2003-05-15 | Axel Kretzschmar | Method and device for producing a binder foam |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011125816A (en) * | 2009-12-18 | 2011-06-30 | Tosetsu:Kk | Gas-liquid mixture stirring device |
CN102228812B (en) * | 2011-04-25 | 2013-04-17 | 青岛高远热能动力设备有限公司 | Multichannel steam-steam ejector |
JP5749702B2 (en) * | 2012-11-21 | 2015-07-15 | 株式会社タカギ | Liquid dilution device |
CN105233744A (en) * | 2015-10-29 | 2016-01-13 | 宝鸡航天动力泵业有限公司 | Blending device for high-pressure foams and mud |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3547409A (en) * | 1968-05-23 | 1970-12-15 | Jacuzzi Bros Inc | Assembly for producing detergent foam |
GB1407281A (en) * | 1971-10-14 | 1975-09-24 | Basf Ag | Method of achieving rapid mixing of two liquids |
DE3040834A1 (en) * | 1979-11-15 | 1981-06-11 | Dietrich Dipl.-Phys. Dr. 5300 Bonn Bachner | Toxic gas discharged from nuclear or chemical plant - is enclosed in rigid plastics foam mixed as gas is released |
EP0517207A1 (en) * | 1991-06-06 | 1992-12-09 | RUME MASCHINENBAU GmbH | Method and device to make construction foam, in particular cement foam |
US5556033A (en) * | 1989-05-10 | 1996-09-17 | New Waste Concepts, Inc. | Apparatus for forming a foamed outdoor protective cover layer |
-
1999
- 1999-07-15 DE DE19933245A patent/DE19933245A1/en not_active Withdrawn
-
2000
- 2000-07-13 WO PCT/EP2000/006687 patent/WO2001005494A1/en active IP Right Grant
- 2000-07-13 DE DE50001291T patent/DE50001291D1/en not_active Expired - Fee Related
- 2000-07-13 AT AT00954492T patent/ATE232753T1/en not_active IP Right Cessation
- 2000-07-13 TR TR2002/00059T patent/TR200200059T2/en unknown
- 2000-07-13 JP JP2001510573A patent/JP2003504191A/en active Pending
- 2000-07-13 PL PL00353402A patent/PL353402A1/en unknown
- 2000-07-13 AU AU66930/00A patent/AU6693000A/en not_active Abandoned
- 2000-07-13 EP EP00954492A patent/EP1198287B1/en not_active Expired - Lifetime
- 2000-07-13 CA CA002379226A patent/CA2379226A1/en not_active Abandoned
- 2000-07-13 HU HU0202633A patent/HUP0202633A2/en unknown
- 2000-07-13 ES ES00954492T patent/ES2193101T3/en not_active Expired - Lifetime
- 2000-07-13 CZ CZ2002155A patent/CZ2002155A3/en unknown
- 2000-07-13 DK DK00954492T patent/DK1198287T3/en active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3547409A (en) * | 1968-05-23 | 1970-12-15 | Jacuzzi Bros Inc | Assembly for producing detergent foam |
GB1407281A (en) * | 1971-10-14 | 1975-09-24 | Basf Ag | Method of achieving rapid mixing of two liquids |
DE3040834A1 (en) * | 1979-11-15 | 1981-06-11 | Dietrich Dipl.-Phys. Dr. 5300 Bonn Bachner | Toxic gas discharged from nuclear or chemical plant - is enclosed in rigid plastics foam mixed as gas is released |
US5556033A (en) * | 1989-05-10 | 1996-09-17 | New Waste Concepts, Inc. | Apparatus for forming a foamed outdoor protective cover layer |
EP0517207A1 (en) * | 1991-06-06 | 1992-12-09 | RUME MASCHINENBAU GmbH | Method and device to make construction foam, in particular cement foam |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10110917C2 (en) * | 2001-03-07 | 2003-05-15 | Axel Kretzschmar | Method and device for producing a binder foam |
Also Published As
Publication number | Publication date |
---|---|
JP2003504191A (en) | 2003-02-04 |
CZ2002155A3 (en) | 2002-10-16 |
CA2379226A1 (en) | 2001-01-25 |
AU6693000A (en) | 2001-02-05 |
PL353402A1 (en) | 2003-11-17 |
DK1198287T3 (en) | 2003-06-16 |
ATE232753T1 (en) | 2003-03-15 |
TR200200059T2 (en) | 2002-06-21 |
ES2193101T3 (en) | 2003-11-01 |
DE19933245A1 (en) | 2001-01-18 |
EP1198287A1 (en) | 2002-04-24 |
DE50001291D1 (en) | 2003-03-27 |
HUP0202633A2 (en) | 2002-11-28 |
EP1198287B1 (en) | 2003-02-19 |
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