DE1027966B - Process for mixing and homogenizing dry powdery substances, partly pneumatically - Google Patents

Process for mixing and homogenizing dry powdery substances, partly pneumatically

Info

Publication number
DE1027966B
DE1027966B DEP10199A DEP0010199A DE1027966B DE 1027966 B DE1027966 B DE 1027966B DE P10199 A DEP10199 A DE P10199A DE P0010199 A DEP0010199 A DE P0010199A DE 1027966 B DE1027966 B DE 1027966B
Authority
DE
Germany
Prior art keywords
mixing
floor
silo
ventilated
homogenizing
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.)
Pending
Application number
DEP10199A
Other languages
German (de)
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.)
Claudius Peters AG
Original Assignee
Claudius Peters 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 Claudius Peters AG filed Critical Claudius Peters AG
Priority to DEP10199A priority Critical patent/DE1027966B/en
Publication of DE1027966B publication Critical patent/DE1027966B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/402Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements
    • B01F33/4021Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements the gas being introduced through the shaft of the stirring element

Description

Verfahren zum Mischen und Homogenisieren trockener pulveriger Stoffe auf teilweise pneumatischem Wege Die Erfindung bezieht sich auf ein Verfahren zum Mischen und Homogenisieren trockener pulveriger beispielsweise für die Zementherstellung dienender Stoffe in einem Silo od. dgl., wobei dem Mischgut von dem in getrennt zu belüftende Zonen unterteilten Siloboden her Druckluft in feiner Verteilung durch eine poröse Schicht zugeführt und das Gut mittels eines mechanischen Rührwerkes ständig in Bewegung gehalten wird. Process for mixing and homogenizing dry powdery substances partially pneumatic way The invention relates to a method for Mixing and homogenizing of dry powdery products, for example for cement production Serving substances in a silo or the like. The mix is separated from that in zones to be ventilated through the subdivided silo floor through fine distribution of compressed air a porous layer and the material by means of a mechanical agitator is kept in constant motion.

Von den bekannten Ausführungsformen. bei denen die Bodenfläche des Mischbehälters entweder gleichmäßig belüftet wird oder aber Teile der Fläche unbeliiftet bleiben, unterscheidet sich die Erfindung vor allem dadurch. daß die eine Belüftungszone der Bodenfläche mit Luft höheren Druckes gespeist wird als gleichzeitig die andere Zone. Dadurch ergibt sich der Vorteil einer wesentlich besseren Durchmischung des Gutes im Silo oder Bunker, weil die über der stärker belüfteten Zone aufsteigende, oben seitwärts abfließende Gutsäule über das weniger stark belüftete Gut geschichtet und dieses gleichzeitig in einem solchen Maße aufgelockert wird. daß beide Gutsäulen dabei teilweise ineinanderfließen und eine intensive Umwälzung des Mischgutes erfolgt. Das Tneinanderfließen der Gutsäulen kann noch gesteigert werden. wenn in weiterer Ausgestaltung der Erfindung zusätzlich Homogenisierungsluft in bekannter Weise über das Rührwerk fein verteilt zugeführt wird. From the known embodiments. where the floor area of the Mixing tank is either evenly ventilated or parts of the surface are not ventilated stay, the invention differs mainly in this. that the one ventilation zone the floor surface is fed with air of higher pressure than the other at the same time Zone. This has the advantage of a much better mixing of the Good things in the silo or bunker, because the rising above the more ventilated zone, At the top, the product column flowing sideways is layered over the less well ventilated product and at the same time it is loosened up to such an extent. that both estate columns partially flow into one another and the mixture is intensively circulated. The flowing together of the manor columns can be increased. if in further Embodiment of the invention in addition to homogenizing air in a known manner the agitator is fed in finely divided.

Das Verfahren gemäß der Erfindung ist jedoch nicht an die Aufteilung des Silobodens in nur zwei Belüftungszonen gebunden; es können auch deren mehrere vorgesehen sein. wobei dann jeweils eine stark belüftete an eine schwächer helüftete Zone angrenzt. However, the method according to the invention is not limited to the division of the silo floor bound in only two ventilation zones; there can also be several be provided. one strongly ventilated to one less ventilated Zone adjoins.

In gewissen Zeitabständen werden die Druckhöhen in den Belüftungszonen des Silobodens in bekannter Weise mittels einer Schaltuhr od. dgl. periodisch selbsttätig umgeschaltet, sodaß die vorher stärker belüftete Zone bzw. Zonen nun weniger stark belüftet werden und umgekehrt. The pressure levels in the ventilation zones are increased at certain time intervals of the silo floor in a known manner by means of a timer or the like. Periodically automatically switched, so that the previously more ventilated zone or zones is now less strong ventilated and vice versa.

Nachstehend ist ein Beispiel für die Durchführung des Verfahrens an Hand der schematischen Darstellung in der Zeichnung näher erläutert. Below is an example of how the procedure might be carried out explained in more detail on the basis of the schematic representation in the drawing.

Als Mischvorrichtung ist ein Silo mit einem Zwischenboden 9 aus porösem, luftdurchlässigem Material vorgesehen. Der obere Siloraum 1 dient zur Aufnahme des zu homogenisierenden Gutes, der Bodenraum 2 unterhalb des porösen Zwischenbodens zur Zuführung und Verteilung der Druckluft. Der Bodenraum 2 ist durch die Zwischenwände 3 quadrantenförmig in vier gegeneinander luftdicht abgeschlossene und mit je einer eigenen Luftzuleitung 8 versehene Kammern 4, 5, 6, 7 aufgeteilt, so daß die der Quadrantenteilung entsprechenden Belüftungszonen des die Kammern abdeckenden Zwischenbodens 9 getrennt mit Druckluft gespeist werden können. A silo with an intermediate floor 9 made of porous, air-permeable material provided. The upper silo space 1 is used to accommodate the Goods to be homogenized, the floor space 2 below the porous intermediate floor for supplying and distributing the compressed air. The floor space 2 is through the partition walls 3 quadrant-shaped in four hermetically sealed against each other and with one each own air supply 8 provided chambers 4, 5, 6, 7 divided so that the Ventilation zones of the corresponding quadrant division the intermediate floor covering the chambers 9 can be fed separately with compressed air.

Das in der Silomitte vertikal angeordnete Rührwerk wird durch die Zahnräder 11 angetrieben. Durch die Leitung 12, die hohle Rührwerkswelle 13 und die in verschiedenen Höhen angeordneten, mit düsenartigen Ausblasöffnungen oder porösen Austrittsflächen versehenen Rührflügel 14 kann zusätzliche Homogenisierungsluft zugeführt werden. Diebeiden Stutzen 15 und 16 im Silodeckel dienen zum Füllen bzw. Entlüften des Siloraumes 1. Die Entleerung erfolgt durch den seitlichen Auslaufstutzen 10 zu dem hin der Zwischenboden 9 schwach gegen die Horizontale geneigt ist. Bei waagerechtem oder trichterförmigem Boden kann die Siloentleerung durch nach unten gerichtete Auslauföffnangen erfolgen. The agitator, which is arranged vertically in the middle of the silo, is driven by the Gear wheels 11 driven. Through the line 12, the hollow agitator shaft 13 and those arranged at different heights, with nozzle-like exhaust openings or The agitator blades 14 provided with porous outlet surfaces can provide additional homogenizing air are fed. The two nozzles 15 and 16 in the silo lid are used for filling or Venting the silo space 1. It is emptied through the side outlet 10 towards which the intermediate floor 9 is slightly inclined to the horizontal. at The silo can be emptied downwards through a horizontal or funnel-shaped floor directed outlet openings take place.

Die vorstehenden Einzelheiten der Mischvorrichtung sind nur zur Erläuterung angeführt und gehören nicht zur Erfindung. The above details of the mixing device are illustrative only listed and do not belong to the invention.

Wie aus der Zeichnung ersichtlich ist, werden in der dargestellten Mischperiode gerade der Bodenquadrant 4 erfindungsgemäß durch erhöhte Luftzufuhr stark und die übrigen Bodenquadranten 5, 6, 7 weniger stark belüftet. Infolge der stärkeren Belüftung wird die über dem Bodenquadranten4 befindliche Gutsäule derartig aufgelockert und angehoben, daß sie nach oben steigt und sich dort seitwärts über den Mischgutspiegel der benachbarten, den Quadranten 5 bis 7 entsprechenden Zonen wälzt. Diese benachbarten Gutsäulen sind weniger stark belüftet, da die Luftzufuhr zu deren Bodenquadranten geringer eingestellt ist als zu dem Quadranten 4. Infolge des fehlenden Auftriebes über den Bodenquadranten 5, 6, 7 wandert hier das Gut abwärts und fließt in die Auftriebszone iiber dem Quadranten 4 hinein. Die Abwärtsbewegung wird dabei durch das Gewicht der oben aus der aufsteigenden Säule über dem Quadranten 4 ständig überquellenden Gutmenge unterstützt. As can be seen from the drawing, are shown in the Mixing period just the floor quadrant 4 according to the invention by increased air supply strongly and the remaining floor quadrants 5, 6, 7 less strongly ventilated. As a result of The column of goods located above the floor quadrant4 becomes such a strong ventilation loosened and lifted so that it rises up and over there sideways the mix level of the neighboring zones corresponding to quadrants 5 to 7 wallows. These neighboring manor columns are less ventilated because the Air supply to whose bottom quadrant is set lower than to quadrant 4. As a result Due to the lack of buoyancy over the bottom quadrants 5, 6, 7, the good moves downwards here and flows into the upwelling zone above quadrant 4. The downward movement is determined by the weight of the top of the ascending column above the quadrant 4 supports the constantly overflowing amount of material.

Auf diese Weise wird also eine vertikale Mischgutumwälzung mit schneller Aufwärtsbewegung des stark belüfteten und langsamer Abwärtsbewegung des schwächer belüfteten Gutes bewirkt.In this way, vertical mix circulation is faster Upward movement of the highly ventilated and slower downward movement of the weaker well ventilated.

Die Umwälzung. bei welcher die einzelnen Gutsäulen auch teilweise ineinanderfließen, wird noch durch das mlechanische Rührwerk und durch die Einführung zusätzlicher Homogenisierungsluft durch das Rührwerk gefördert. The upheaval. in which the individual manor columns also partially flow into one another, is made possible by the mechanical agitator and the introduction additional homogenizing air is conveyed through the agitator.

Nach einiger Zeit wird die unterschiedliche Bodenbelüftung in bekannter Weise mittels einer Schaltuhr od. dgl. umgeschaltet, so daß also dann z. B. der Bodenquadrant 5 stark und die übrigen Quadranten 4. After a while, the different types of floor ventilation become more familiar Way by means of a timer od. Like. Switched so that then z. B. the Floor quadrant 5 strong and the remaining quadrants 4.

6. 7 weniger stark belüftet werden. Infolgedessen wird die jetzt stattfindende Umwälzbewegung in einer anderen Vertikalebene vor sich gehen, da nunmehr das über dem Ouadranten5 befindliche Material nach oben steigt und das in den Zonen über den übrigen Quadranten liegende Gut nach unten fließt. Nach einem oder zwei Schaltumläufen ist in der Praxis meistens eine vollkommene Homogenisierung der ganzen Silofüllung zu verzeichnen.6. 7 need less ventilation. As a result, the one that is now taking place Overturning movement in a different vertical plane go ahead, since now that over The material located in the ouadrant5 rises upwards and that in the zones the other quadrants lying good flows downwards. After one or two switching cycles in practice is usually a complete homogenization of the entire silo filling to be recorded.

PATEXT TNSPRUSCHE 1. Verfahren zum Mischen und Homogenisieren trockener pulveriger, beispielsweise für die Zementherstellung dienender Stoffe in einem Silo, wobei dem Mischgut von dem in getrennt zu belüftende Zonen unterteilten Siloboden her Druclcluft in feiner Verteilung durch eine poröse Schicht zugeführt und das Mischgut mittels eines oneeManischen Rührwerkes ständig in Bewegung gehalt ten wird, dadurch gekennzeichnet, daß die eine Belüftungszone (4) mit Luft höheren Druckes gespeist wird als gleichzeitig die andere Zone (5+6+7) . PATEXT TNSPRUSCHE 1. Method of mixing and homogenizing drier powdery substances, e.g. used for cement production in a silo, where the mix is separated from the silo floor, which is divided into zones to be ventilated separately A fine distribution of compressed air is supplied through a porous layer and the The mix is kept in constant motion by means of an on-man agitator, characterized in that the one ventilation zone (4) with air of higher pressure is fed as the other zone (5 + 6 + 7) at the same time.

Claims (1)

2. Verfahren nach Anspruch 1, dadurch gekennzeichnet. daß zusätzliche Homogenisierungsluft, wie an sich bekannt, über das Rührwerk (13, 14) fein verteilt zugeführt wird. 2. The method according to claim 1, characterized. that additional Homogenizing air, as is known per se, finely distributed over the agitator (13, 14) is fed. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Druckhöhen in den Belüftungszonen des Silobodens in bekannter Weise mittels einer Schaltuhr od. dgl. periodisch selbsttätig umgeschaltet werden. 3. The method according to claim 1 or 2, characterized in that the pressure levels in the ventilation zones of the silo floor in a known manner by means of a timer or the like. Periodically be switched automatically. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 78 123, 226 323, 263 l.n4, 439 113, 516 055, 525 077, 539 141, 584 190, 625 876, 629 722, 669 206; schweizerische Patentschriften Nr. 115696, 345, 207 033; USA.-Patentschrift Nr. 2 292 897. Considered publications: German Patent Specifications No. 78 123, 226 323, 263 l.n4, 439 113, 516 055, 525 077, 539 141, 584 190, 625 876, 629 722, 669 206; Swiss patents No. 115696, 345, 207 033; U.S. Patent No. 2,292,897.
DEP10199A 1953-07-29 1953-07-29 Process for mixing and homogenizing dry powdery substances, partly pneumatically Pending DE1027966B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP10199A DE1027966B (en) 1953-07-29 1953-07-29 Process for mixing and homogenizing dry powdery substances, partly pneumatically

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP10199A DE1027966B (en) 1953-07-29 1953-07-29 Process for mixing and homogenizing dry powdery substances, partly pneumatically

Publications (1)

Publication Number Publication Date
DE1027966B true DE1027966B (en) 1958-04-10

Family

ID=7362750

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP10199A Pending DE1027966B (en) 1953-07-29 1953-07-29 Process for mixing and homogenizing dry powdery substances, partly pneumatically

Country Status (1)

Country Link
DE (1) DE1027966B (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099827B (en) * 1959-05-16 1961-02-16 Kloeckner Humboldt Deutz Ag Pneumatic mixer for powdery or fine-grained goods
DE1138608B (en) * 1960-09-07 1962-10-25 Peters Ag Claudius Process and device for the pneumatic mixing of dusty or fine-grained dry material
DE1146734B (en) * 1960-04-21 1963-04-04 Franz Josef Gattys Ingenieurbu Device for pneumatic mixing of dusty or granular substances
DE1152876B (en) * 1958-05-20 1963-08-14 Fuller Co Method and device for conditioning, in particular mixing, of powdery material
DE1173318B (en) * 1961-10-25 1964-07-02 Schilde Maschb Ag Device for mixing pneumatically conveyable goods
US3307834A (en) * 1963-03-05 1967-03-07 Pilkington Brothers Ltd Methods for mixing finely-divided materials
DE1299009B (en) * 1965-09-04 1969-07-10 Peters Ag Claudius Device for cooling or heating flowable, grainy or powdery bulk material
DE2332948A1 (en) * 1972-06-28 1974-01-10 Du Pont METHOD AND DEVICE FOR MIXING SOLIDS
DE2527359A1 (en) * 1975-06-19 1976-12-30 Luco Technic Ag Mixer for powdered and granular materials - utilising combined fluidisation and mechanical stirring
US4323312A (en) * 1977-08-26 1982-04-06 Werner Glatt Fluidized bed apparatus
EP0111294A2 (en) * 1982-12-09 1984-06-20 Claudius Peters Aktiengesellschaft Mixing silo for the pneumatic homogenisation of granulated or powdery materials
EP0197400A3 (en) * 1985-03-23 1987-08-26 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Treating apparatus having multifunction
WO1990006173A1 (en) * 1988-12-09 1990-06-14 Bouheben, Christophe Apparatus for the treatment with a sweeping gas of a particulate thermoplastic material
WO2000061272A2 (en) * 1999-04-14 2000-10-19 Modutech S.A. Mixer for liquid or solid substances
EP2447047A1 (en) * 2010-10-29 2012-05-02 EOS GmbH Electro Optical Systems Device for treating powder for a device for producing a three-dimensional object and device for producing a three-dimensional object

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE78123C (en) * HEINR. SELLER-BECK & COMP., Oberhausen, Rheinl Movable agitator spindle for mortar mixing machines
DE226323C (en) *
DE263154C (en) *
CH115696A (en) * 1924-09-04 1926-07-01 Carl Pontoppidan Method and device for mixing powdery material.
DE439113C (en) * 1924-09-05 1927-01-04 Carl Pontoppidan Dipl Ing Method of mixing stored material
DE516055C (en) * 1927-11-01 1931-01-17 Kloeckner Werke A G Abteilung Mixing tool for plate mixers, which is attached to the drive pulley so that it can swing
DE525077C (en) * 1925-05-09 1931-05-18 Ciments Luxembourgeois Sa Des Process for the production of a uniform mixture in powder form, for example substances suitable for cement preparation
DE539141C (en) * 1930-10-21 1931-11-21 Polysius A G G Method and device for mixing flour-like or dusty material
DE584190C (en) * 1931-12-22 1933-09-15 Internat Precipitation Company Method of mixing flour-like substances
CH171345A (en) * 1932-12-08 1934-08-31 Nielsen Niels Homogenization system for powdery material.
DE625876C (en) * 1934-10-26 1936-02-17 Ciments Luxembeourgeois Sa Des Method and device for uniform mixing of powdery mixtures
DE629722C (en) * 1934-10-25 1936-05-09 Louis Peters Method and device for uniformly mixing powdery material
DE669206C (en) * 1937-02-10 1938-12-19 Polysius Akt Ges G Device for mixing dusty or powdery material
CH207033A (en) * 1938-12-07 1939-09-15 Polysius G Ag Method and device for loosening dusty goods in containers.
US2292897A (en) * 1940-02-13 1942-08-11 Smidth & Co As F L Method and apparatus for mixing

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE78123C (en) * HEINR. SELLER-BECK & COMP., Oberhausen, Rheinl Movable agitator spindle for mortar mixing machines
DE226323C (en) *
DE263154C (en) *
CH115696A (en) * 1924-09-04 1926-07-01 Carl Pontoppidan Method and device for mixing powdery material.
DE439113C (en) * 1924-09-05 1927-01-04 Carl Pontoppidan Dipl Ing Method of mixing stored material
DE525077C (en) * 1925-05-09 1931-05-18 Ciments Luxembourgeois Sa Des Process for the production of a uniform mixture in powder form, for example substances suitable for cement preparation
DE516055C (en) * 1927-11-01 1931-01-17 Kloeckner Werke A G Abteilung Mixing tool for plate mixers, which is attached to the drive pulley so that it can swing
DE539141C (en) * 1930-10-21 1931-11-21 Polysius A G G Method and device for mixing flour-like or dusty material
DE584190C (en) * 1931-12-22 1933-09-15 Internat Precipitation Company Method of mixing flour-like substances
CH171345A (en) * 1932-12-08 1934-08-31 Nielsen Niels Homogenization system for powdery material.
DE629722C (en) * 1934-10-25 1936-05-09 Louis Peters Method and device for uniformly mixing powdery material
DE625876C (en) * 1934-10-26 1936-02-17 Ciments Luxembeourgeois Sa Des Method and device for uniform mixing of powdery mixtures
DE669206C (en) * 1937-02-10 1938-12-19 Polysius Akt Ges G Device for mixing dusty or powdery material
CH207033A (en) * 1938-12-07 1939-09-15 Polysius G Ag Method and device for loosening dusty goods in containers.
US2292897A (en) * 1940-02-13 1942-08-11 Smidth & Co As F L Method and apparatus for mixing

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152876B (en) * 1958-05-20 1963-08-14 Fuller Co Method and device for conditioning, in particular mixing, of powdery material
DE1099827B (en) * 1959-05-16 1961-02-16 Kloeckner Humboldt Deutz Ag Pneumatic mixer for powdery or fine-grained goods
DE1146734B (en) * 1960-04-21 1963-04-04 Franz Josef Gattys Ingenieurbu Device for pneumatic mixing of dusty or granular substances
DE1138608B (en) * 1960-09-07 1962-10-25 Peters Ag Claudius Process and device for the pneumatic mixing of dusty or fine-grained dry material
DE1173318B (en) * 1961-10-25 1964-07-02 Schilde Maschb Ag Device for mixing pneumatically conveyable goods
US3307834A (en) * 1963-03-05 1967-03-07 Pilkington Brothers Ltd Methods for mixing finely-divided materials
DE1299009B (en) * 1965-09-04 1969-07-10 Peters Ag Claudius Device for cooling or heating flowable, grainy or powdery bulk material
DE2332948A1 (en) * 1972-06-28 1974-01-10 Du Pont METHOD AND DEVICE FOR MIXING SOLIDS
DE2527359A1 (en) * 1975-06-19 1976-12-30 Luco Technic Ag Mixer for powdered and granular materials - utilising combined fluidisation and mechanical stirring
USRE32307E (en) * 1977-08-26 1986-12-16 Werner Glatt Fluidized bed apparatus
US4323312A (en) * 1977-08-26 1982-04-06 Werner Glatt Fluidized bed apparatus
EP0111294A2 (en) * 1982-12-09 1984-06-20 Claudius Peters Aktiengesellschaft Mixing silo for the pneumatic homogenisation of granulated or powdery materials
EP0111294A3 (en) * 1982-12-09 1985-07-03 Claudius Peters Aktiengesellschaft Mixing silo for the pneumatic homogenisation of granulated or powdery materials
EP0197400A3 (en) * 1985-03-23 1987-08-26 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Treating apparatus having multifunction
WO1990006173A1 (en) * 1988-12-09 1990-06-14 Bouheben, Christophe Apparatus for the treatment with a sweeping gas of a particulate thermoplastic material
FR2640186A1 (en) * 1988-12-09 1990-06-15 Guy Bouheben APPARATUS FOR TREATING A SCANNING GAS OF A PARTICULATE THERMOPLASTIC MATERIAL
EP0374058A1 (en) * 1988-12-09 1990-06-20 Guy Bouheben Device for treating thermoplastic particulate material with an agitation gas
US5056926A (en) * 1988-12-09 1991-10-15 Guy Bouheben Apparatus for treating a particulate thermoplastic material with a purging gas
WO2000061272A2 (en) * 1999-04-14 2000-10-19 Modutech S.A. Mixer for liquid or solid substances
WO2000061272A3 (en) * 1999-04-14 2001-03-08 Modutech S A Mixer for liquid or solid substances
US6634625B1 (en) 1999-04-14 2003-10-21 Modutech Sa Mixer for fluid or solid substances
EP2447047A1 (en) * 2010-10-29 2012-05-02 EOS GmbH Electro Optical Systems Device for treating powder for a device for producing a three-dimensional object and device for producing a three-dimensional object

Similar Documents

Publication Publication Date Title
DE1027966B (en) Process for mixing and homogenizing dry powdery substances, partly pneumatically
EP0324090A1 (en) Device for dosing fibrous bulk goods difficult to dose
CH630408A5 (en) METHOD AND DEVICE FOR BREEDING ANIMAL AND HUMAN TISSUE CELLS.
DE900795C (en) Filling machine for powdery or grainy goods
DE2824480A1 (en) METHOD AND APPARATUS FOR MIXING POWDER IN A FLUID BED
DE1057425B (en) Method and device for the pneumatic mixing of powdery material stored in silos
EP2504287A2 (en) Method and system for dewatering and preheating mixtures for glass melting plants
EP0111294B1 (en) Mixing silo for the pneumatic homogenisation of granulated or powdery materials
DE867180C (en) Double-walled pot for flower pots
DE524869C (en) Foam float apparatus for preparing coal feasts
DE461220C (en) Trough mixer for the production of mortar
DE939606C (en) Pneumatic device for mixing and emptying storage silos for dusty and fine-grained goods
DE1138608B (en) Process and device for the pneumatic mixing of dusty or fine-grained dry material
US1872628A (en) Material coating apparatus
DE2158579C3 (en) Device for mixing granular substances, in particular plastic granulate
DE964308C (en) Process for the continuous cooling and drying of granular materials
DE513340C (en) Method and device for mixing liquids and slurries using compressed air
DE937766C (en) Method and device for mixing solids with liquids
DE859223C (en) Method and device for dosing wood chips for the production of chipboard
DE2714903C2 (en) Method and device for continuous weighing or continuous volumetric metering of uncompacted silicon dioxide produced by pyrogenic means
DE2047616C2 (en) Bitumen blowing reactor
DE126203C (en)
DE4231911A1 (en) Controlled feed device for issue of pourable fodder in poultry houses - has controlled feed housing beneath filling funnel and build-up chamber and contg. one or more feed worms driven by electric motor
DE1139724B (en) Mixing device for powdery or grainy substances
DE4319864A1 (en) Organic fertiliser prodn. appts. - comprises immersed mixing and aerating combination with protective housing, for immersion in liq. for fermentation