EP0558588B1 - Vorrichtung für das mischen, homogenisieren oder umsetzen von wenigstens zwei komponenten - Google Patents

Vorrichtung für das mischen, homogenisieren oder umsetzen von wenigstens zwei komponenten Download PDF

Info

Publication number: EP0558588B1
Authority: EP; European Patent Office
Prior art keywords: pipe; lengths; container; mixing; pipe sections
Prior art date: 1990-11-23
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

EP91920834A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0558588A1 (en

Inventor

Wolf-Dieter Kreuziger

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.)

KREUZIGER WOLF DIETER

Original Assignee

KREUZIGER WOLF DIETER

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.)

1990-11-23

Filing date

1991-11-22

Publication date

1995-02-22

1991-11-22 Application filed by KREUZIGER WOLF DIETER filed Critical KREUZIGER WOLF DIETER

1993-09-08 Publication of EP0558588A1 publication Critical patent/EP0558588A1/xx

1995-02-22 Application granted granted Critical

1995-02-22 Publication of EP0558588B1 publication Critical patent/EP0558588B1/de

2011-11-22 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/60—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers

Definitions

the invention relates to a device for mixing, homogenizing or converting at least two, in particular flowable or free-flowing, components with a container which is rotatably mounted about an axis and can be driven to rotate, with at least one closable opening for filling and / or emptying the container, such as emerges from DE-C-130850.
Mixing devices in which a container in which an agitator is immersed and its axis is driven to rotate are known, for example, in the chemical industry.
a number of designs of a mixer shaft have become known for the mixing of viscous or pasty masses, the stirrers or mixing tools, depending on the nature of the material, having to be subjected to relatively complex cleaning after the mixing process has ended.
the use of a mixing tool can lead to local heating of the material to be mixed in the immediate vicinity of the mixing tool, and there may also be inhomogeneities in the temperature distribution in the immediate vicinity of the mixing tool if such mixing tools are moved at a high rotational speed.
the transfer of energy in such a mixing process using a mixing tool is associated with losses due to the frictional heat occurring between the mixing tool and the mass to be mixed, and in particular if the mixing process is intended to achieve homogeneous heating of the components to be mixed at the same time Such heating cannot be transferred to the components to be mixed without loss.
the invention now aims to provide a device of the type mentioned at the outset, with which the mechanical energy expended can be converted directly into the material to be mixed, with which it can be used separately and occasionally cleaning mixing tools can be dispensed with and which also offers the possibility of adapting the mixing parameters, in particular the extent of homogenization or a homogeneous temperature distribution desired for the chemical conversion of components, to the respective requirements without disturbing losses.
the device according to the invention consists essentially in the fact that the container is formed by at least two pipe sections which are openly connected to one another and can be driven separately, that the pipe sections are sealingly mounted on their mutually facing end faces, that the ends of the container which are on the outside in the axial direction each have a sealing end wall, and that at least one sealing end wall is slidable in the axial direction of the pipe sections.
the mixing effect in the mixing area can be controlled, and in particular for the optionally desired chemical reaction of such components with one another, an increase in pressure is made possible, which in some cases enables such chemical reactions to be carried out.
Due to the displaceability at least one End wall in the axial direction of the pipe sections is also created the possibility of working semi-continuously or continuously, and it is in particular possible, by axially displacing at least one end wall, possibly enclosed gases or gases formed in the course of a chemical reaction separately from the reaction product or the mixed product to apply, since such gases remain in a region close to the axis of the container due to their lower specific masses when the container wall rotates rapidly.
the homogenization and mixing is controlled in a wide range by selecting a suitable speed, and it is possible in particular for components with widely differing specific masses or for mixing or reacting liquids with solids by systematically introducing the components to be converted or mixed To ensure a path for the complete implementation or the complete mixing from a region close to the center in the direction of the jacket of the rotatable container.
the individual pipe sections can be driven in the same direction and at different rotational speeds, with a particularly intensive mixing naturally occurring when adjacent pipe sections are driven in opposite directions.
the material to be mixed or converted can be transported through the mixing zone by axially displacing at least one end wall while at the same time pressing out already mixed or converted products. In this way it is also possible to work continuously.
the shape and extent of the mixing zone which is formed in particular between adjoining end walls can be adapted to different requirements of the mixing or conversion process in that the axes are preferably the pipe sections are arranged coaxially with one another or with the inclusion of an obtuse angle. If the axes are arranged at an obtuse angle, a flexing effect can be achieved in the area of the mixing zone when the pipe sections are rotated, which supports mixing of the at least two components.
the device can advantageously be developed in such a way that at least one end wall has an axial opening, in particular with a sieve, for filling and / or emptying the container.
an axial opening for filling and / or emptying the container can be securely sealed even at a relatively high pressure in view of the peripheral speed which is only low in the vicinity of the axis.
the design is advantageously made such that the rotary drives for the pipe sections arranged next to one another in the axial direction act on the respective outer circumference of the pipe sections, preferably the pipe sections on their outer circumference in Bearings are supported.
Such an embodiment allows high speeds to be mastered safely with only little design effort.
the design is made in such a way that a bearing ring is provided in the area of the facing ends of the pipe sections, which cooperates sealingly with the ends of the pipe sections, such a design can advantageously be further developed that at least one opening for filling and / or emptying the container passes through the particularly fixed bearing ring.
the arrangement of an opening for filling and / or emptying the container in such a fixed bearing ring is natural associated with the lowest sealing effort and particularly advantageous when using high compression pressures during the mixing process or during the implementation.
the formation is advantageously made using a bearing ring in such a way that a stationary bearing ring is arranged between adjacent pipe sections, which with the interposition of sealing elements with mutually facing end faces Front ends of the pipe sections is connected.
the discharge of the mixed or reaction product can take place according to a preferred embodiment in that at least one end of a pipe section can be displaced in the bearing ring. This enables a precise setting of a separation gap between mutually facing end faces, via which gap material of a certain grain size can escape.
the design is advantageously made such that both sealingly sealing end walls can be displaced in the axial direction and can be driven separately from one another or can be coupled for joint movement.
the material to be mixed can be transported several times through the mixing zone between adjacent pipe sections, in particular when the end walls are moved in the same direction, thereby ensuring intensive and rapid mixing.
the design is advantageously made such that the container is provided with at least one opening for applying a vacuum. If necessary, inert gas can also be injected via such a connection.
the design is such that the common axis of the pipe sections is arranged essentially horizontally, wherein the pipe sections can have heating and / or cooling devices on their jacket in order to optimize chemical conversions or also mixing processes.
the design is preferably such that the surface of the end walls facing the inside of the pipe sections has a surface that deviates from a flat surface that runs normally on the axis of the corresponding pipe section.
additional movement components can be introduced into the material in addition to the components caused by the rotation, and in this way an acceleration of a mixing or transfer process can be achieved.
FIG. 1 shows a section through a first embodiment of a device according to the invention with two adjoining pipe sections; 2 shows a section through a modified embodiment of a device according to the invention with three coaxial pipe sections; 3 shows a section through a again modified embodiment of a device according to the invention, only one of the adjoining pipe sections one has movable end wall; the 4, 5 and 6 sections through an embodiment similar to Figure 1 at different times of a mixing or implementation process, the adjacent pipe sections having an opposite direction of rotation; 7, 8 and 9 in a representation similar to FIGS.
FIGS. 13a, b, c show schematic representations of modified surface structures for the end walls sealing the pipe sections at the free ends.
FIG. 1 shows a container 1 for mixing, homogenizing or converting at least two components, which is formed by two coaxially arranged, adjoining pipe sections 2, which are in open connection with one another.
the pipe sections 2 are mounted in schematically indicated bearings 3, a separate drive 4 or part of a transmission gear being indicated for each of the pipe sections in the area of one of the bearings.
the pipe sections 2 close to each other with their mutually facing end faces of the end faces 5 via a fixed bearing ring 6.
an end wall 7 which closes the open end of the pipe sections 2 and which can be moved in the axial direction in the direction of the double arrows 8. 7 seals 9 are indicated on the outer circumference of the end walls.
the bearing ring 6 For filling and emptying the container 1 formed by the coaxially arranged and separately drivable pipe sections, the bearing ring 6 has access openings into the interior of the container, which are indicated by 10 and 11.
access openings 12 can also be provided in the region of the end walls 7, which are connected to channels 14 which run essentially axially through the shafts 13 of the end walls 7.
an opening 12, in particular intended for emptying is equipped with a schematically indicated sieve 24.
the pipe sections 2 have cooling and / or heating devices in their jacket, as indicated schematically by 15, the connections to such cooling and / or heating devices 15 not being shown for the sake of clarity.
cooling and / or heating devices 15 instead of such devices integrated in the jacket, for example, radiation devices surrounding the outer circumference of the pipe sections can also be provided.
FIG. 1 the reference numerals of FIG. 1 have been retained for the same components. Furthermore, only the most important components are shown for the sake of clarity, so that in particular the representation of the bearings and drives and the different possibilities of the feed and / or discharge openings are dispensed with.
the outer pipe sections 2 are similar to the pipe sections of Figure 1 and in turn point to Completion of their open outer ends end walls 7, which are separately movable.
the middle pipe section 16 can be driven according to the requirements, for example in the opposite direction to the outside pipe sections 2, the facing end faces of the pipe sections 2 and 16 in turn connecting to one another via a fixed bearing ring 6.
a pipe section 2 with a movable end wall 7 and a second pipe section 17 with a rigid wall 18 are used.
Such an embodiment can be selected, for example, if the pipe section 17 is to be designed as a removable end container, which is disconnected from the pipe section 2 after the mixing or conversion process has taken place and is, for example, delivered to a consumer.
the movable end wall 7 of the adjacent pipe section 2 it becomes possible in the course of the mixing process to transfer the mixture or the converted products into the vessel or container formed by the pipe section 17.
the pipe sections 2 are driven in the same direction of rotation 23 but at different speeds.
a mixing or friction zone 21 is thus formed in the area of the bearing ring 6, in which a particularly intensive mixing or homogenization of the introduced components takes place.
a stationary bearing ring 25 which overlaps the end faces of the ends 5 is used, sealing surfaces of the bearing ring 25, which interact with the outer surface of the pipe sections 2, being indicated schematically by 26.
the mixed or converted material is discharged through a separating gap 27 which can be set between the mutually facing end faces 5 of the pipe sections 2, with at least one of the pipe sections 2 in the sense after mixing or implementation to set this separating gap 27 of the double arrow 34 is guided in the bearing ring 25 so as to be displaceable in the direction of the longitudinal axis.
the material exits through the separating gap 27, which is matched to a certain grain size, into the interior of the bearing ring 25 and is withdrawn therefrom through the opening 11.
the axis of the mixing container 1 formed by at least two coaxial pipe sections 2 runs essentially horizontally.
An arrangement inclined to the horizontal or a vertical arrangement can of course also be selected in accordance with the requirements.
the axes 28 of the pipe sections 2 which are in open connection with one another form an obtuse angle ⁇ with one another.
a suitably designed stationary bearing ring 29 is used, the bearing rings interacting with the end faces of the ends 5 of the pipe sections 2 being designated by 30.
the mixing zone that arises in the area of the connection of the pipe sections has an asymmetrical shape, whereby the rotating movement of the pipe sections 2 results in a flexing effect and, in connection with this, an accelerated mixing process can be carried out, because due to the inclined position of the axes 28, this occurs on the inner surface the pipe sections 2 adhering material is subjected to different additional movements, in particular in an essentially axial direction, depending on the position.
movement components are also exerted in an essentially axial direction of the pipe sections, which promotes the mixing or conversion process and furthermore achieves special mixing effects can.
the speeds and directions of rotation can be set and selected separately from one another and furthermore at least one end wall can be moved in the direction of the axis of the mixing container formed by the pipe sections, a wide variety of mixing zones and intensities can be achieved. Dry substances, liquids or pastes can thus be processed, and the parameters for proper mixing, homogenization or conversion can be set in a wide range by using cooling and / or heating devices and pressing pressures which can be introduced through the end walls.
the overall result is a slight adjustment of the adjustable parameters, such as the direction of rotation, speed of rotation, contact pressure of the end walls, temperature and the like, to the material consistency, as a result of which a very rapid mixture can be achieved in the entire material.
the heat generated during the mixing process is generated directly in the material and a temperature setting, as mentioned above, can be supported by additional heating and cooling processes and can thus be carried out evenly and quickly by exchanging it over a large surface.
the openings or feed lines provided in the bearing ring and / or in the end walls can of course not only be used for the supply of material and the withdrawal of the mixed or reacted products, but also for example to create a vacuum or to apply inert gas or protective gas.
small friction bodies can also be contained therein.
a continuous mode of operation can be such that the material to be mixed is fed continuously via a feed 14 arranged in an end wall 7 and is discharged via the opening 12 provided in the opposite end wall 7, which is equipped, for example, with a sieve, as shown in FIG Fig.1 is indicated.
the material can be introduced in batches, whereupon after the mixing process has been carried out, the mixed product or reaction product is in turn discharged, for example, via the opening 12 provided in the opposite end wall 7 by moving at least one end wall.

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Mixers Of The Rotary Stirring Type (AREA)
Accessories For Mixers (AREA)
Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
Physical Or Chemical Processes And Apparatus (AREA)
Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

EP91920834A 1990-11-23 1991-11-22 Vorrichtung für das mischen, homogenisieren oder umsetzen von wenigstens zwei komponenten Expired - Lifetime EP0558588B1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
AT0238490A AT395544B (de)	1990-11-23	1990-11-23	Vorrichtung fuer das mischen, homogenisieren oder umsetzen von wenigstens zwei komponenten
AT2384/90		1990-11-23
PCT/AT1991/000121 WO1992009361A1 (de)	1990-11-23	1991-11-22	Vorrichtung für das mischen, homogenisieren oder umsetzen von wenigstens zwei komponenten

Publications (2)

Publication Number	Publication Date
EP0558588A1 EP0558588A1 (en)	1993-09-08
EP0558588B1 true EP0558588B1 (de)	1995-02-22

Family

ID=3533388

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91920834A Expired - Lifetime EP0558588B1 (de)	1990-11-23	1991-11-22	Vorrichtung für das mischen, homogenisieren oder umsetzen von wenigstens zwei komponenten

Country Status (10)

Country	Link
US (1)	US5350232A (es)
EP (1)	EP0558588B1 (es)
JP (1)	JPH06504226A (es)
KR (1)	KR930703067A (es)
AT (1)	AT395544B (es)
CA (1)	CA2096137A1 (es)
DE (1)	DE59104731D1 (es)
DK (1)	DK0558588T3 (es)
ES (1)	ES2071347T3 (es)
WO (1)	WO1992009361A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2337274B (en)	1998-05-12	2001-10-17	Notetry Ltd	Method and apparatus for agitating the contents of a container
US6854300B2 (en)	1998-05-12	2005-02-15	Dyson Limited	Method and apparatus for containing and agitating the contents of a container
AT405085B (de) *	1998-05-28	1999-05-25	Voith Ag J M	Hochdruckfeste dichtungseinrichtung sowie verwendung einer derartigen dichtungseinrichtung
US6799884B2 (en) *	2002-12-23	2004-10-05	The Goodyear Tire And Rubber Company	Dual chamber orifice mixer and method of use
CN101428957B (zh) *	2007-11-09	2011-07-20	深圳市环源科技发展有限公司	污泥反应釜
DE102014113986A1 (de) *	2014-09-26	2016-03-31	Krones Ag	Vorrichtung und Verfahren zum Befüllen von Behältern mit einem Füllprodukt
CN118001999B (zh) *	2024-04-07	2024-05-31	广州市哲铭油墨涂料有限公司	一种油漆颜填料分散湿润的加料装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE130850C (es) *
US1812146A (en) *	1929-04-26	1931-06-30	Forville Constant	Rotary mixing machine
US2297804A (en) *	1939-06-03	1942-10-06	James F Siegfried	Material reducing mill
US2376106A (en) *	1944-06-12	1945-05-15	Joseph F Gohn	Agitating mechanism
GB792240A (en) *	1955-07-26	1958-03-19	Fritz Moser	Improvements in or relating to concrete mixers
DE2323579C2 (de) *	1973-05-10	1975-03-06	Gerd 5138 Heinsberg Meuser	Mischer für trockenes oder erdfeuchtes Mischgut z.B. Beton
US4831959A (en) *	1980-11-19	1989-05-23	Turner Harold D	Blender for applying finely dispersed liquid droplets of resins and/or waxes on surfaces of particulate wood materials

1990
- 1990-11-23 AT AT0238490A patent/AT395544B/de not_active IP Right Cessation
1991
- 1991-11-22 CA CA002096137A patent/CA2096137A1/en not_active Abandoned
- 1991-11-22 DK DK91920834.8T patent/DK0558588T3/da not_active Application Discontinuation
- 1991-11-22 ES ES91920834T patent/ES2071347T3/es not_active Expired - Lifetime
- 1991-11-22 WO PCT/AT1991/000121 patent/WO1992009361A1/de active IP Right Grant
- 1991-11-22 JP JP3518628A patent/JPH06504226A/ja active Pending
- 1991-11-22 DE DE59104731T patent/DE59104731D1/de not_active Expired - Fee Related
- 1991-11-22 US US08/064,130 patent/US5350232A/en not_active Expired - Fee Related
- 1991-11-22 EP EP91920834A patent/EP0558588B1/de not_active Expired - Lifetime
1993
- 1993-05-24 KR KR1019930701539A patent/KR930703067A/ko active IP Right Grant

Also Published As

Publication number	Publication date
EP0558588A1 (en)	1993-09-08
US5350232A (en)	1994-09-27
WO1992009361A1 (de)	1992-06-11
ATA238490A (de)	1992-06-15
CA2096137A1 (en)	1992-05-24
JPH06504226A (ja)	1994-05-19
AT395544B (de)	1993-01-25
DE59104731D1 (de)	1995-03-30
ES2071347T3 (es)	1995-06-16
DK0558588T3 (da)	1995-07-17
KR930703067A (ko)	1993-11-29

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