EP1475143B1 - Vorrichtung zum Dispergieren und/oder Homogenisieren - Google Patents

Vorrichtung zum Dispergieren und/oder Homogenisieren Download PDF

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Publication number
EP1475143B1
EP1475143B1 EP04007370A EP04007370A EP1475143B1 EP 1475143 B1 EP1475143 B1 EP 1475143B1 EP 04007370 A EP04007370 A EP 04007370A EP 04007370 A EP04007370 A EP 04007370A EP 1475143 B1 EP1475143 B1 EP 1475143B1
Authority
EP
European Patent Office
Prior art keywords
pump
tool
dispersing
line
homogenising
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.)
Expired - Lifetime
Application number
EP04007370A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1475143A3 (de
EP1475143A2 (de
EP1475143A8 (de
Inventor
Jörg Gassenschmidt
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.)
IKA Werke GmbH and Co KG
Original Assignee
IKA Werke GmbH and Co KG
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 IKA Werke GmbH and Co KG filed Critical IKA Werke GmbH and Co KG
Priority to PL04007370T priority Critical patent/PL1475143T3/pl
Publication of EP1475143A2 publication Critical patent/EP1475143A2/de
Publication of EP1475143A8 publication Critical patent/EP1475143A8/de
Publication of EP1475143A3 publication Critical patent/EP1475143A3/de
Application granted granted Critical
Publication of EP1475143B1 publication Critical patent/EP1475143B1/de
Anticipated expiration legal-status Critical
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
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/81—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow
    • B01F27/811—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump
    • B01F27/8111—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump the stirrers co-operating with stationary guiding elements, e.g. surrounding stators or intermeshing stators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/7544—Discharge mechanisms characterised by the means for discharging the components from the mixer using pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/75455—Discharge mechanisms characterised by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the receptacle

Definitions

  • the invention relates to a device for dispersing and / or homogenizing with a dispersing and / or homogenizing tool, in which a pumpable substance or a pumpable mixture is mixed with at least one additive, wherein the pumpable substance or the like from a container, in particular from a container or from a tube to which the dispersing and / or homogenizing tool can be fed and for which the additives or feeds are provided in the supply line of the pumpable substance in front of the tool, wherein the supply line and the supply line are concentric with each other at least in the area of the orifice are.
  • a structurally comparable device is known from DE 196 29 945 A1 and has proven itself. In this case, however, a dry material or free-flowing solid material is fed centrally and liquid from the side concentrically, and from this initially a pumpable mixture is formed with the aid of mixing tools, which mixture is fed to the dispersing and / or homogenizing tool in this form.
  • a substance of high viscosity with sufficient fluidity can be understood as meaning, for example, a cream, a dental gel or a substance having an approximately honey-like consistency.
  • the device defined above is characterized in that in the feed direction of the substance at a distance in front of the dispersing and / or homogenizing and before the mouth of the supply line at least one pump is arranged, the pump pressure in the flow direction in the mouth of the Supply line is less than the suction pressure of the dispersing and / or homogenizing tool.
  • the pumpable or flowable substance before the access of the additive or additives is exposed to a conveying effect by a pump, so that this substance, despite its relatively high viscosity of the dispersing or homogenizing, hereinafter also referred to as "homogenizer” is supplied without its tearing off. Nevertheless, from the one or more supply lines, a respective additive can be sucked in and entrained and thereby reach the homogenizer. Thus, at the required point, the suction effect of the homogenizer can be effective without having to completely suck in the pumpable substance.
  • the pump ensures that, in spite of its high viscosity, this pumpable substance reaches into the area of the suction effect of the homogenizer or supports this suction, so that the additive (s) can also be entrained in order to be dispersed and / or homogenized together.
  • An embodiment of the invention of quite considerable, possibly even own worthy of protection importance may be that in the supply of the pumpable substance from the pump to the mouth of the supply line, a means for changing or reducing the cross section of this supply line is arranged.
  • the device can be adapted to pumpable substances of different viscosities or possibly to substances whose viscosity changes during processing, for example when a part of the pumpable substance is branched off and returned to the container and then transported again through the pump and the supply line.
  • the viscosity may change when starting the device and thus during a corresponding process, for example, when gradually adding certain thickening or diluting the pumpable and flowable material, for example, before entering the pump, that is the means for Changing or reducing the cross-section of the supply line can be helpful especially in a start-up phase of the device or the process performed by this device.
  • the result behind the homogenizer may vary in viscosity due to additives, so that, for this reason, throttling or increasing the cross section of the feed line and thus the amount of the pumpable substance may be expedient in order to be able to set a desired end result.
  • this possibility of changing or reducing the cross section of the feed line is advantageous because the device can be used for starting materials of different viscosities and can be optimally adapted to these different viscosities of different substances.
  • a further embodiment of the invention may consist in that the device for changing the cross section of the supply line is designed as a shut-off device and that in particular a return line is branched into the container between the pump and the device for changing the cross section of the supply line.
  • the supply line can not only be changed in its cross-section, but also be completely closed. This is particularly useful if the pumpable and flowable material from the container is to be pumped back into this, for example, this substance, which may contain several components, first better pre-mix before it is fed to the homogenizer and before entering the Homogenizer with one or more Additives is brought together.
  • this arrangement with a shut-off device and at least one return line has the advantage that the device can be cleaned well by circulating a corresponding cleaning liquid with the aid of the pump and introduced into the container as high as possible or even via spray heads provided there.
  • the pump or the pump impeller is arranged on the same shaft as the dispersing and / or homogenizing and if between the pressure-side pump chamber and the shaft and the concentrically arranged especially within the supply line for the Additive is arranged a shaft acting on this seal, which separates the pressure part of the pump from the suction region of the additive in the supply line.
  • a single drive motor is needed in this way. At the same time, it is ensured that the entry of the additive into the pumpable substance is as even as possible.
  • the concentrically arranged supply line and supply line is also arranged concentrically to the shaft sealingly passing through it for the pump and the dispersing and / or homogenizing tool.
  • annular channels for the pumpable substance and the additive (s) result, whereby the correspondingly sealed and shielded shaft runs from the homogenizer to the pump through the innermost ring. This also leads to a compact space-saving arrangement.
  • an outlet line may be provided, which may in particular be returned to the container in front of the pump.
  • a filling line or filling fitting can be provided, which can be connected via a fitting, for example a three-way cock, with the outlet and return line.
  • the outlet line can open into the recirculation line going out immediately behind the pump, and a shut-off device, in particular in the form of a three-way cock, can be arranged at the mouth.
  • a shut-off device in particular in the form of a three-way cock, can be arranged at the mouth.
  • a portion of the recycle line can serve both to return the pumpable material before it enters the homogenizer and to mix and homogenize it with an additive.
  • the suction effect of the dispersing and / or homogenizing tool can be reinforced by at least one arranged in the conveying direction behind this tool and / or at the entrance to this tool and in particular connected to the tool pump blades. This is particularly advantageous if the pumpable substance and / or the additives have a high viscosity.
  • At least one stirring tool can be arranged in the container.
  • the container vertically above the pump and the pump are arranged vertically above the dispersing and / or homogenizing and if the supply and the supply line in the area before the dispersing and / or homogenizing, so in particular in the region of their concentric arrangement, are directed downward.
  • the promotion of the often highly viscous substances supported by gravity are expedient if the container vertically above the pump and the pump are arranged vertically above the dispersing and / or homogenizing and if the supply and the supply line in the area before the dispersing and / or homogenizing, so in particular in the region of their concentric arrangement, are directed downward.
  • the supply line for the additive may be formed in front of this area arranged concentrically to the feed line leading laterally to this area.
  • this supply line to the container as close as possible, run as close as possible below the container to its concentric region in a vertical arrangement.
  • the mouth of the feed line into the feed line can be provided at the entrance to the dispersing and / or homogenizing tool. The closer the mouth is arranged to the homogenizer, the more effective is its suction effect.
  • the dispersing and / or homogenizing tool may be a rotor-stator device with, in particular, a plurality of rotor toothed rings and / or stator rings in a concentric arrangement with one another. A correspondingly intensive homogenizing effect is possible.
  • a device that can be used separately or installed in pipelines. It can be used advantageously in mixing and emulsifying plants and preferably have a mixing tank with central bottom outlet leading to the pump.
  • an external circulation line which is led out of the container in the bottom outlet and laterally leads back into a riser in the upper part of the container to enhance the mixing effect and used for a good cleaning.
  • the arrangement of the homogenizing and / or dispersing tool in a circulation line which leads back into the container, allows more effective and intensive dispersion or homogenization of the mix and allows additional functions such as pumping and especially circulation of the mix and later a cleaning medium.
  • a device denoted as a whole by 1 is used for dispersing and / or homogenizing and has for this purpose a dispersing and / or homogenizing tool 2, also referred to as “homogenizer” 2 or optionally “tool” 2, recognizable above all in FIG.
  • a dispersing and / or homogenizing tool 2 also referred to as "homogenizer” 2 or optionally “tool” 2, recognizable above all in FIG.
  • a pumpable and flowable substance or a corresponding pumpable substance mixture can be mixed with at least one additive.
  • the pumpable substance from a container, in the embodiment of a container 3, which may be at least partially also double-walled according to Figures 1 and 2, the homogenizer 2 via a supply line 4, which is at least partially a pumping chamber in the embodiment, zuleitbar ,
  • a Supply line 5 is provided, which opens into the supply line 4 in front of the tool 2, wherein the supply line 5 and the supply line 4 at least in the region of the mouth 6 and before run concentric to each other.
  • a pump 7 is arranged, whose impeller, especially in FIG. 2, can be clearly seen below a bottom outlet 8 a of the container 3 is.
  • the downwardly directed pump pressure in the flow direction in the embodiment is less in the region of the mouth 6 of the supply line 5 than the suction pressure of the dispersing and / or homogenizing tool 2, so that even at high viscosity, the flow of the substance can not tear off before this orifice 6, the means by this measure it is ensured that at the mouth 6 of the material coming from the container 3 flows at a high viscosity in a desired amount to flow together with an appropriate amount of the additive and then mixed and / or homogenized can.
  • the supply line 4 of the pumpable material can be seen between the pump 7 and the mouth 6 means for changing or reducing the cross section of this supply line 4, which is formed in the embodiment as a shut-8, so that by this shut-off device 8 either only partially Operation, the amount of the pumpable substance throttled or the flow can be completely shut off.
  • shut-off device 8 allows adaptation to different viscosities of this substance, which can either occur during the process itself or must be taken into account when treated with the device 1 sequentially different substances.
  • the pump 7 or its pump impeller is arranged on the same shaft 10 as the dispersing and / or homogenizing tool 2, so that only a single drive 11, for example the motor shown in FIG 12 with belt drive 13, is required.
  • a single drive 11 for example the motor shown in FIG 12 with belt drive 13
  • a shaft 10 acting on the seal 14 is arranged which separates the pressure part of the pump 7 from the suction area in the supply line 5 and the mouth 6.
  • the concentrically arranged supply line 4 and supply line 5 with its area 5a are also arranged concentrically to the sealed shaft passing through them 10 and separated by a shaft sleeve enclosing the shaft 15 of this.
  • an outlet line 16 is provided, the course of which is shown mainly in FIG.
  • the outlet pipe 16 is returned in a manner to be described in the container 3 in front of the pump 7.
  • a filling line 17 is provided with filling fitting 18 at the recirculating into the container 3 outlet 16, so that via this valve 18, for example, a three-way valve, the filling line 17 is connected to the outlet or return line 9, which in still to be described manner with the outlet pipe 16 is in communication or forms part of it.
  • a shut-off valve 19 is arranged in the form of a three-way cock, so that from this shut-off valve 19, the return line 9 and the outlet 16 a common line, which leads to the filling line 17 on the one hand and in the container 3 on the other.
  • the mixture formed in the homogenizer 2 can either be filled or likewise pumped one or more times in order to increase the concentration of the feed in the end product.
  • the important for the uniform supply of the substance and the additive suction of the dispersing and / or homogenizing tool 2 is in the exemplary embodiment by a downstream in the conveying direction of this tool 2 and an am Entrance into this tool 2 arranged pump blades 20 and 21 reinforced.
  • the container or the container 3 is located vertically above the pump 7 and the pump 7 is in turn vertically above the homogenizer 2, so that the supply line 4 and the concentric region 5 a of the supply line 5 are directed downwards in the region before the homogenizer 2, so that the conveyance of the substance to the homogenizer 2 is supported by gravity, which is advantageous in particular for substances of high viscosity.
  • the supply line 5 is in front of its concentric to the feed line 4 arranged area 5a side leading to this area 5a leader, so that they can extend below the container 3 to save space.
  • 1 shows a filling or metering funnel 23, through which an additive can be introduced into the supply line 5.
  • the mouth 6 of the supply line 5 or its concentric region 5 a in the supply line 4 is provided directly at the entrance to the dispersing and / or homogenizing tool 2 in order to make the best possible use of its suction effect.
  • This dispersing and / or homogenizing tool 2 is a rotor-stator device with a plurality of rotor sprockets and stator sprockets in a concentric arrangement in order to be able to work effectively.
  • the shut-off device 8 is closed.
  • this shut-off device 8 is only partially closed and used as a throttle, the flow coming from the pump 7 is throttled. In this case, one can choose the throttling so that the pumping action or the suction of the subsequent homogenizer is greater than that of the pump 7. This creates a negative pressure between the homogenizer 2 and pump 7, which then rests against the inlet for the additive. By opening a valve 24 provided there, the additive can be sucked out of the feed hopper 23, which may be liquid or powdery substances. Applying vacuum or negative pressure to the mixing tank 3 is not required, but can further improve the suction performance.
  • the device 1 has a dispersing and / or homogenizing tool 2 and on the same shaft 10, a pump 7, whereby a pumpable substance from a container, in particular a container 3 or a tube, the dispersing and / or homogenizing tool 2 is zuleitbar.
  • This substance can be mixed in the dispersing and homogenizing tool 2 with an additive which passes through a feed line 5 and a region 5a arranged concentrically to the feed line 4 to an opening 6 in front of the dispersing and homogenizing tool 2.
  • a device for changing or reducing the cross section of this supply line 4 that is arranged a throttle, which is preferably designed as a shut-off device 8 in order to complete the supply line 4 completely.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Colloid Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Confectionery (AREA)
EP04007370A 2003-05-09 2004-03-26 Vorrichtung zum Dispergieren und/oder Homogenisieren Expired - Lifetime EP1475143B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04007370T PL1475143T3 (pl) 2003-05-09 2004-03-26 Urządzenie do dyspergowania i/lub homogenizowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10320739A DE10320739B3 (de) 2003-05-09 2003-05-09 Vorrichtung zum Dispergieren und/oder Homogenisieren
DE10320739 2003-05-09

Publications (4)

Publication Number Publication Date
EP1475143A2 EP1475143A2 (de) 2004-11-10
EP1475143A8 EP1475143A8 (de) 2005-01-19
EP1475143A3 EP1475143A3 (de) 2005-07-06
EP1475143B1 true EP1475143B1 (de) 2006-06-21

Family

ID=32981295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04007370A Expired - Lifetime EP1475143B1 (de) 2003-05-09 2004-03-26 Vorrichtung zum Dispergieren und/oder Homogenisieren

Country Status (7)

Country Link
US (1) US7325966B2 (da)
EP (1) EP1475143B1 (da)
AT (1) ATE330698T1 (da)
DE (2) DE10320739B3 (da)
DK (1) DK1475143T3 (da)
ES (1) ES2266943T3 (da)
PL (1) PL1475143T3 (da)

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DE102004040446A1 (de) * 2004-08-20 2006-03-09 A. Berents Gmbh & Co Kg Vorrichtung und Verfahren zum Mischen eines fließfähigen Produkts und eines insbesondere pulverförmigen Zuschlagstoffes
FR2877333B1 (fr) * 2004-11-02 2007-09-07 Snpe Materiaux Energetiques Sa Procede et dispositif de preparation d'une pate de propergol de type composite
DE102005007175A1 (de) * 2005-02-16 2006-08-17 Knape, Sandra Vorrichtung und Verfahren zum Homogenisieren
DE102005017075A1 (de) * 2005-04-13 2006-10-19 Ekato Unimix Gmbh Vorrichtung zum Homogenisieren und/oder Dispergieren fliessfähiger Stoffe
US20110235460A1 (en) * 2005-07-22 2011-09-29 Schlumberger Technology Corporation Method and apparatus to optimize the mixing process
DE202005018432U1 (de) 2005-11-23 2006-08-24 Frymakoruma Ag Homogenisator-Vorrichtung mit gegenläufig rotierbaren Zahnkränzen
DE202006008820U1 (de) * 2006-06-03 2006-08-17 Frymakoruma Ag Homogenisator-Vorrichtung mit horizotal gelagerten Zahnkränzen
FR2929133B1 (fr) 2008-03-31 2010-12-10 Vmi Dispositif de melange comprenant un conduit d'amenee de particules debouchant dans la zone de turbulences
DE102008045820A1 (de) 2008-09-05 2010-04-08 Axel Wittek Übergangselemente zum Überleiten einer Dispersion bei der Behandlung in einer Rotor-Stator-Dispergiermaschine
JP5222183B2 (ja) * 2009-03-03 2013-06-26 正夫 金井 連続式乾燥装置
FR2970879B1 (fr) * 2011-01-31 2013-02-15 Vmi Dispositif de melange
EP2574396B1 (en) * 2011-09-30 2014-06-04 Alfa Laval Corporate AB Apparatus for mixing and pumping
DE202016000169U1 (de) * 2016-01-14 2017-04-20 Symex Gmbh & Co. Kg Pump- und/oder Mischeinrichtung zum Fördern, Homogenisieren und/oder Dispergieren fließfähiger Produkte
CN105854680A (zh) * 2016-05-11 2016-08-17 范绍玉 一种机械工程用搅拌装置
CN107816421A (zh) * 2017-10-20 2018-03-20 项达章 一种混合泵
CN112354457A (zh) * 2020-11-05 2021-02-12 安徽飞达消防设备工程有限公司 一种消防喷头用液体搅拌机
DE102022101814A1 (de) 2022-01-26 2023-07-27 Ekato Systems Gmbh Vorrichtung zum Homogenisieren und/oder Dispergieren fließfähiger Stoffe

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Also Published As

Publication number Publication date
ATE330698T1 (de) 2006-07-15
EP1475143A3 (de) 2005-07-06
ES2266943T3 (es) 2007-03-01
DK1475143T3 (da) 2006-10-23
PL1475143T3 (pl) 2006-11-30
US20040223407A1 (en) 2004-11-11
DE502004000796D1 (de) 2006-08-03
EP1475143A2 (de) 2004-11-10
US7325966B2 (en) 2008-02-05
EP1475143A8 (de) 2005-01-19
DE10320739B3 (de) 2004-10-21

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