EP1175256A1 - Dispositif mobile destine a la production continue et discontinue de couleurs liquides aqueuses composees de constituants pulverulents et d'eau - Google Patents
Dispositif mobile destine a la production continue et discontinue de couleurs liquides aqueuses composees de constituants pulverulents et d'eauInfo
- Publication number
- EP1175256A1 EP1175256A1 EP00922574A EP00922574A EP1175256A1 EP 1175256 A1 EP1175256 A1 EP 1175256A1 EP 00922574 A EP00922574 A EP 00922574A EP 00922574 A EP00922574 A EP 00922574A EP 1175256 A1 EP1175256 A1 EP 1175256A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixing
- water
- mobile device
- container
- aqueous liquid
- 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.)
- Granted
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
- B01F23/50—Mixing liquids with solids
- B01F23/56—Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving
-
- 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
- B01F27/805—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
- B01F27/807—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle with the stirrer-head pivoting about a horizontal axis to bring it in and out of operative position, e.g. with receptacles pivoting about a horizontal axis for emptying
-
- 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
- B01F35/71—Feed mechanisms
- B01F35/714—Feed mechanisms for feeding predetermined amounts
- B01F35/7141—Feed mechanisms for feeding predetermined amounts using measuring chambers moving between a loading and unloading position, e.g. reciprocating feed frames
- B01F35/71411—Feed mechanisms for feeding predetermined amounts using measuring chambers moving between a loading and unloading position, e.g. reciprocating feed frames rotating or oscillating about an axis
- B01F35/714111—Feed mechanisms for feeding predetermined amounts using measuring chambers moving between a loading and unloading position, e.g. reciprocating feed frames rotating or oscillating about an axis the measuring chambers being pockets on the circumference of a drum rotating about a horizontal axis with discharging by gravity
-
- 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
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
-
- 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
- B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/50—Movable or transportable mixing devices or plants
- B01F33/502—Vehicle-mounted mixing devices
Definitions
- the invention relates to a mobile device for the continuous and discontinuous production of aqueous liquid paints from pulverulent constituents and water, especially based on dispersion powders, and to a method for producing aqueous liquid colors by means of dispersing powder compositions in water using this device.
- Aqueous liquid paints are manufactured in large-scale dissolvers by the paint manufacturers.
- water is first introduced into the dissolver, if appropriate in a mixture with secondary constituents such as wetting agents, anti-foaming agents and preservatives, and pigments and fillers are slowly introduced with a high-speed stirrer.
- the pigment paste obtained in this way is mixed with a plastic dispersion as a binder while the agitator is running slowly.
- the finished paint is delivered in containers with a water content of 30 to 50% in the emulsion paint.
- Plastic powders (dispersion powders) redispersible in water can also be used to produce emulsion paints.
- water-redispersible plastic powders such as the Vinnapas R dispersion powders from Wacker-Chemie
- the procedure has been such that the dispersion powder or the powder composition containing the dispersion powder was stirred into the mixing water on site by means of a stirring stick or a drilling machine equipped with a stirrer.
- this procedure does not result in the same Before quality is achieved as with a liquid emulsion paint manufactured in the factory in permanently installed dissolvers.
- the object was therefore to develop a mobile device with which a liquid paint can also be produced in a continuous manner from powdery constituents.
- the invention relates to a mobile device for the continuous and discontinuous production of aqueous liquid colors from powdery constituents and water, comprising a mobile frame 1 with a) a mixing unit comprising a mixing motor 2, the dissolver 3 and the mixing container 4, and b) a metering unit with metering motor 5, the filling container 6 with a conveying element 7, and the filling funnel 8, and c) a switching unit 9 with control elements for controlling the metering process and the mixing process, characterized in that the conveying element 7 has a rotatable allocation disk 11 equipped with an allocation chamber 10 is, and the dosing unit is equipped with a load cell 12.
- the device is explained in more detail below with reference to drawings.
- the drawings show schematic representations of a preferred exemplary embodiment.
- the mobile device comprises a mobile frame 1, for example a metal frame provided with lockable rollers.
- the metering unit for metering the powdery constituents is arranged, which comprises a cylindrical filling container 6 which is open at the top.
- the filling container 6 it is equipped with a filling funnel 8.
- the hopper 8 can be closed with a lid 13.
- the dimensions of the filling funnel 8 are arbitrary, in general the volume is from 5 to 50 liters.
- the diameter of the filling container 6 is preferably from 150 to 400 mm.
- the filling container 6 is equipped with a conveying element 7 at its lower end, lying on the bottom of the filling container.
- the conveying element 7 is shown in FIG. 3 and comprises an allocation disk 11, for example a rotor disk with a diameter corresponding to the diameter of the filling container 6, preferably 150 to 400 mm in diameter.
- the thickness of the allocation disk 11 is preferably 25 to 50 mm.
- the allocation disk 11 can be made of metal or plastic, preferably of plastic, for example Teflon.
- the filling material is allocated to the mixing container via an allocation chamber 10.
- the allocation chamber 10 represents a recess of any shape on the allocation disc 11 the bottom of the filling container 6 can be conveyed into the mixing container 4; in general, the base area of the dispensing chamber 10 is larger than that of the opening 14.
- an obtuse-angled segment of a circle is cut out, an obtuse-angled preferably means an angle of greater than 45 °.
- Preferred is the in The direction of rotation of the allotment chamber surface is convex.
- the allocation disk 11 is driven by the metering motor 5. A slow-running disk with a circulation speed of 10 to 20 rpm has proven to be useful for conveying.
- the bottom of the filling container 6 has an opening 14 in the area which projects into the mixing container 4, through which the powder material is conveyed from the allocation chamber 10 into the mixing container 4.
- the filling container 6 is arranged contactlessly on the upper edge of the mixing container 4 in such a way that the opening 14 of the filling container 6 lies above the mixing container 4. In the rest position, when the filling container 6 is filled, the allocation disk 11 covers the opening 14.
- the mixing container 4 is a usually cylindrical container, possibly with a rounded bottom, which is preferably made of metal, for example stainless steel.
- the diameter D of the mixing container 4 is preferably 200 mm to 400 mm.
- the ratio H / D from the height H of the mixing container to the diameter D is preferably 1: 1 to 2: 1.
- the mixing container 4 preferably at the bottom of the container, is equipped with a motor-driven removal valve 15.
- the mixing container 4 is preferably attached to the frame 1 with a parallel suspension with two parallel links.
- An electronic load cell 12 is arranged on the frame 1 below the mixing container 4, with which the amount of powder metered into the mixing tank 4 and the metered amount of water are continuously measured.
- the weighing cell 12 is a conventional, electronic weighing device, as is also commercially available. This load cell is locked when the mobile device moves and is only activated when the device is started up.
- the weighing cell 12 continuously detects the quantities of powder constituents and water added to the mixing container and forwards the measured values to the switching unit 9 On the one hand, the metering of the mixture constituents is controlled, and on the other hand, the complete metering is registered, and after the metering has ended, the dispersing process is initiated by the control element.
- the powdery constituents of the formulation are mixed with the water by means of a dissolver 3.
- the dissolver 3 comprises a shaft 3a arranged vertically downwards and centrally to the mixing container 4 and a dissolver disk 3b.
- the dissolver disk 3b is usually a steel disk which is equipped with teeth.
- the dissolver 3 can be folded away laterally by means of a steel arm 16 which is firmly connected to the mixing container 4 in order to ensure better cleaning of the mixing container and the dissolver shaft and disk. Furthermore, a plate 17 is attached to the underside of the dissolver, preferably made of stainless steel, which, when the dissolver 3 is lowered into the mixing container 4, closes it completely upwards.
- the mixing container 4 can be opened or the dissolver 3 can be opened up only when the machine is switched off.
- a contact in the form of a safety locking device can be attached to the frame of the mixing container 4, so that only currentless opening is possible. As a result, when the device is in operation, the mixing container 4 cannot be opened.
- the dispersion performance is largely determined by the dimensioning of the shaft 3a and the dissolver disk 3b.
- the ratio d / D of the diameter d of the dissolver disc 3b to the diameter D of the mixing container 4 is preferably 0.3 to 0.5.
- the shaft 3a is preferably dimensioned such that the dissolver disk 3b can be lowered from 0.3 d to 0.7 d during the mixing process to a floor distance h from the bottom of the mixing container 4, where d stands for the diameter of the dissolver disk 3a.
- the device according to the invention is equipped with a switching unit 9.
- the switching unit 9 is a commercially available, freely programmable, electronic control element with software adapted to it.
- the switching unit is preferably equipped with a colored, two-part display, with which the optimal mixing ratios of powder content and water, the mixing times and the addition rates of water and powder can be entered and the program sequence can be observed. Furthermore, the functional status of the mobile device can be read continuously on the display and it is shown which further steps are to follow.
- An embodiment is also preferred in which the device is equipped with a connection 18 for supplying water.
- a permanently installed line 19 leads from the water connection to the mixing container 4.
- an additional water extraction possibility can also be created, from which, for example, water can be removed for cleaning the device.
- the finished mixed color is generally filled into buckets. Therefore, in a preferred embodiment, a component (bucket guard) is installed on the frame, which monitors whether a bucket is ready for filling, so that the control element does not allow the finished paint to be removed without the bucket under it.
- the device is equipped with a fill level indicator based on ultrasound, with which the fill level of the bucket can be monitored.
- Another object of the invention is a process for the preparation of aqueous liquid paints by means of dispersion of powder compositions, preferably of dispersion powder. ver compositions in water using this device. Due to the built-in load cell, work can now be carried out continuously, since any quantity of powdery material can be refilled without having to weigh it exactly beforehand, because the load of powder metered in is continuously and precisely measured via the load cell 12 and required depending on the recipe Water quantity is automatically allocated by the switching unit 9.
- the pulverulent constituents are filled into the hopper 8 and continuously conveyed into the mixing container 4 by means of the distribution disk 11.
- the quantity added is continuously measured by the weighing cell 12 and the quantities metered in are reported to the switching unit 9.
- part of the water generally half to two thirds of the total amount of water of the formulation in the mixing container 4, is preferably introduced.
- the dissolver 3 is started by the switching unit 9.
- the speed of rotation of the dissolver 3 can be set variably and adapted to the respective production status.
- the stirring speeds are preferably 500 to 1500 rpm, the procedure being to operate at a higher stirring speed during the dispersion and to stir at a lower speed after the dispersing phase.
- compositions in addition to the proportion of dispersion powder, the compositions also contain pigments, for example titanium dioxide or inorganic or organic colored pigments, fillers such as calcite, dolomite or chalk.
- pigments for example titanium dioxide or inorganic or organic colored pigments
- fillers such as calcite, dolomite or chalk.
- the addition of water, the powder conveyance, the duration of the mixing process, the dispersing process and, if appropriate, the variation of the conveying speed of the powder and the rotational speed of the dissolver, are regulated automatically via the switching unit 9.
- the entire manufacturing process is carried out in a program-controlled manner from the start of filling up to the removal of the finished dispersion, with the optimal mixing ratios, mixing times, dosing rates and dissolver speed being preprogrammed and all process steps taking place automatically.
- the switching unit 9 ends the mixing process automatically. After the dispersion has ended, the finished liquid paint is removed from the removal valve 15 for filling.
- a new mixing process is preferably started only after the mixing container 4 has been completely emptied. But it can also be done in such a way that, despite the fact that one
- a further preferred embodiment can also be carried out in such a way that water is automatically metered in after the liquid ink thus obtained has been completely removed, whereby the mixing container 4 is immediately rinsed are set so that the operator can decide whether the replenishment of water should only be used to clean the mixing container 4 or should be used as a batch for a new mixture.
- manual actuation is limited to filling in the powder shaped material and taking the ready mixed liquid paint.
- the advantage of the device according to the invention is that due to the mobile mixing device, it is able to produce a liquid, aqueous emulsion paint directly at the point of use, for example at the construction site, from the powder components and water in the quality that was previously only possible at the factory installed dissolvers could be obtained.
- the monitoring of the dosing by means of the load cell 12 continuous operational management is now possible. It is no longer necessary to add batches of precisely weighed powder, which are then mixed with the appropriate amount of water. The continuous metering is monitored with the load cell and the appropriate amount of water is continuously supplied with the switching unit 9.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Accessories For Mixers (AREA)
- Paints Or Removers (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Extraction Or Liquid Replacement (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19916373 | 1999-04-12 | ||
DE19916373A DE19916373A1 (de) | 1999-04-12 | 1999-04-12 | Mobile Vorrichtung zur kontinuierlichen und diskontinuierlichen Herstellung von wässrigen Flüssigfarben aus pulverförmigen Bestandteilen und Wasser |
PCT/EP2000/002812 WO2000061270A1 (fr) | 1999-04-12 | 2000-03-30 | Dispositif mobile destine a la production continue et discontinue de couleurs liquides aqueuses composees de constituants pulverulents et d'eau |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1175256A1 true EP1175256A1 (fr) | 2002-01-30 |
EP1175256B1 EP1175256B1 (fr) | 2002-07-31 |
Family
ID=7904232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00922574A Expired - Lifetime EP1175256B1 (fr) | 1999-04-12 | 2000-03-30 | Dispositif mobile destine a la production continue et discontinue de couleurs liquides aqueuses composees de constituants pulverulents et d'eau |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1175256B1 (fr) |
AT (1) | ATE221413T1 (fr) |
AU (1) | AU4291800A (fr) |
DE (2) | DE19916373A1 (fr) |
WO (1) | WO2000061270A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVI20040227A1 (it) * | 2004-09-24 | 2004-12-24 | Peron Srl Unipersonale | Procedimento per ottenere un impasto per la realizzazione di sottofondi per pavimentazione ed un relativo dispositivo di miscelazione |
CN103315012B (zh) * | 2013-07-05 | 2015-12-23 | 上海金禾实业发展有限公司 | 一种粉料计量分配装置和方法 |
CN110975747B (zh) * | 2020-03-02 | 2020-06-02 | 胜利油田海发环保化工有限责任公司 | 一种油漆颜填料分散湿润的加料装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2366379A (en) * | 1943-11-22 | 1945-01-02 | Kenneth E Bemis | Apportioning apparatus |
US4177941A (en) * | 1977-11-02 | 1979-12-11 | International Research And Development Corporation | Metering device |
GB2207415A (en) * | 1987-07-27 | 1989-02-01 | Shell Int Research | Dosing apparatus for powder; mixing the dose with water |
DE4418547C2 (de) * | 1994-05-27 | 2001-05-23 | Happle Maschinenfabrik Anlagen | Vorrichtung zur Herstellung von Schüttgutgemischen |
FR2743509B1 (fr) * | 1996-01-17 | 1998-02-27 | Henkel Ecolab Snc | Melangeur a vis convoyeuse et dispositif de pesage |
DE19714264A1 (de) * | 1997-04-07 | 1998-10-08 | Wacker Chemie Gmbh | Mobile Vorrichtung zur Herstellung von wäßrigen Flüssigfarben aus pulverförmigen Bestandteilen und Wasser |
-
1999
- 1999-04-12 DE DE19916373A patent/DE19916373A1/de not_active Withdrawn
-
2000
- 2000-03-30 WO PCT/EP2000/002812 patent/WO2000061270A1/fr active IP Right Grant
- 2000-03-30 DE DE50000344T patent/DE50000344D1/de not_active Expired - Fee Related
- 2000-03-30 EP EP00922574A patent/EP1175256B1/fr not_active Expired - Lifetime
- 2000-03-30 AT AT00922574T patent/ATE221413T1/de not_active IP Right Cessation
- 2000-03-30 AU AU42918/00A patent/AU4291800A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0061270A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19916373A1 (de) | 2000-10-26 |
EP1175256B1 (fr) | 2002-07-31 |
AU4291800A (en) | 2000-11-14 |
ATE221413T1 (de) | 2002-08-15 |
DE50000344D1 (de) | 2002-09-05 |
WO2000061270A1 (fr) | 2000-10-19 |
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