DE1051815B - Process for granulating powders - Google Patents
Process for granulating powdersInfo
- Publication number
- DE1051815B DE1051815B DEF21586A DEF0021586A DE1051815B DE 1051815 B DE1051815 B DE 1051815B DE F21586 A DEF21586 A DE F21586A DE F0021586 A DEF0021586 A DE F0021586A DE 1051815 B DE1051815 B DE 1051815B
- Authority
- DE
- Germany
- Prior art keywords
- granules
- granulating powders
- granulating
- rolling process
- powders
- 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
Links
- 238000000034 method Methods 0.000 title claims description 7
- 239000000843 powder Substances 0.000 title claims description 6
- 239000008187 granular material Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/18—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using a vibrating apparatus
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Glanulating (AREA)
- Medicinal Preparation (AREA)
Description
DEUTSCHESGERMAN
Die Hauptpatentammeidung F 20087 IVa/12g betrifft ein Verfahren zur Granulierung feiner Pulver zu Granulaten gewünschter Korngröße ohne Zusatz von Bindemitteln, bei dem nach einem vorzugsweise klassierenden Anigranulierverfahren Keimgranulate mit definiertem Korngrößenbereich erzeugt werden und diese in einem anschließenden, eine Aufbaugranulation begünstigenden Prozeß mit Relativbewegung der Teilchen zu größeren und/oder dichteren Fertiggranulaten umgewandelt werden. Nach diesem Verfahren können Granulate mit hervorragenden Fließeigenschaften hergestellt werden, die sich beispielsweise in begasten Rinnen flüssigkeitsähnlich fortbewegen. Solche Granulate können je nach Dauer und Art der Nachbehandlung im Rollprozeß eine mehr oder minder große Druckfestigkeit erhalten.The main patent F 20087 IVa / 12g relates to a process for granulating fine powders to granules of the desired grain size without the addition of binders, in which case one is preferred seed granulates with a defined grain size range can be produced and this in a subsequent process with relative movement that promotes build-up granulation the particles are converted into larger and / or denser finished granules. After this Process, granules with excellent flow properties can be produced, for example move in a liquid-like manner in fumigated channels. Such granules can vary depending on the duration and type of aftertreatment in the rolling process obtain a more or less high compressive strength.
Es hat sich nun gezeigt, daß man eine Erhöhung der Druckfestigkeit der Granulate erreichen kann, wenn erfindungsgemäß das staub- oder pulverförmige Gut in vorverdichtetem Zustand der Keimgranulierang zugeführt wird.· Der Vorrichtung zur Herstellung der Keimgranulate werden Verdichtungsvorrichtungen für das Pulver, z. B. elastisch gelagerte Preßwalzen, zwischen denen das Gut auf luftdurchlässigen Transportbändern geführt wind, vorgeschaltet. So vorbehandelte Puh^er ergeben bei der Keimgranulierung dichtere und deshalb festere Keimgranulate, deren Festigkeit auch nach Anlagerung von nicht angranuliertem Staub bestehenbleibt. Solche Granulate sind widerstandsfähiger gegen Zerdrücken bei dem Transport z. B. in Säcken oder in begasten Kesselwagen.It has now been shown that the compressive strength of the granules can be increased, if, according to the invention, the dusty or powdery material in the pre-compressed state of the germ granulation range · The device for the production of the seed granules are compacting devices for the powder, e.g. B. elastically mounted press rolls, between which the goods on air-permeable conveyor belts guided wind, upstream. So pretreated puh ^ er result in the germ granulation denser and therefore stronger seed granules, their strength even after the accumulation of non-granulated Dust persists. Such granules are more resistant to crushing during transport z. B. in bags or in fumigated tank wagons.
In der Abbildung ist ein Vorrichtungsbeispiel zur Durchführung des Verfahrens schematisch dargestellt.An example of a device for carrying out the method is shown schematically in the figure.
Über einen Vorratsbehälter 1 mit regelbarem Auslauf läuft das zu granulierende Material, beispielsweise ein trockenes Pigment, mit etwa 0,3 °/o Feuchtigkeit einer Bandpresse 2 zu und wird hier zu plättchenartigen Gebilden verdichtet. Die Plättchen gelangen durch den Trichter 3 auf eine Schwingsiebeinrichtung 4, auf der sie wieder zerschlagen werden. Dabei entstehen einerseits unrunde Teilchen, von der Siebmaschenweite entsprechenden Teilchengröße als Keimgranulate und andererseits durch Zerschlagen und Abrieb Feinstaub. Das Gemisch aus KeimgranulatThe material to be granulated, for example, runs over a storage container 1 with a controllable outlet a dry pigment, with about 0.3% moisture to a belt press 2 and here becomes platelet-like Forms condensed. The platelets pass through the funnel 3 onto a vibrating screen device 4 on which they will be smashed again. On the one hand, this results in non-circular particles with a particle size corresponding to the screen mesh size as seed granules and on the other hand particulate matter from smashing and abrasion. The mixture of seed granules
Verfahren zum Granulieren von PulvernProcess for granulating powders
Zusatz zur Patentanmeldung F 20087 IVa/12 g
(Auslegeschrift 1 041 472)Addition to patent application F 20087 IVa / 12 g
(Interpretation document 1 041 472)
Anmelder:Applicant:
Farbenfabriken Bayer Aktiengesellschaft,
Leverkusen-BayerwerkPaint factories Bayer Aktiengesellschaft,
Leverkusen-Bayerwerk
Dipl.-Ing. Julius Wehn, Leverkusen,
Dr. Richard Schlee, Leverkusen-Bayerwerk,Dipl.-Ing. Julius Wehn, Leverkusen,
Dr. Richard Schlee, Leverkusen-Bayerwerk,
Dr. Hans Rumpf, Karlsruhe,Dr. Hans Rumpf, Karlsruhe,
Dr. Wolfgang Stroh, Leverkusen,Dr. Wolfgang Stroh, Leverkusen,
und Dipl.-Ing. Rudolf Erdmenger, Bergisch Gladbach,and Dipl.-Ing. Rudolf Erdmenger, Bergisch Gladbach,
sind als Erfinder genannt wordenhave been named as inventors
und Feinstaub wird über das Transportband 6 einem Fließbettraum 7 zugeführt, in dem, wie in der Hauptpatentanmeldung F 20087 IV a/12 g beschrieben, durch Anlagerung des Feinststaubes an die Keimgranulate unter dem Einfluß des Rolldrucks größere und festere Granulate aufgebaut werden. Die Fertiggranuläte werden über die Auslaufeinrichtung 8 abgezogen.and fine dust is fed via the conveyor belt 6 to a fluidized bed space 7 in which, as in the main patent application F 20087 IV a / 12 g, due to the accumulation of the fine dust on the germ granules larger and firmer granules are built up under the influence of the roll pressure. The finished granules are withdrawn via the outlet device 8.
Claims (5)
I. Considered publications:
I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF21586A DE1051815B (en) | 1956-04-19 | 1956-11-06 | Process for granulating powders |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF20087A DE1041472B (en) | 1956-04-19 | 1956-04-19 | Process for granulating powders into granules of the desired grain size without the addition of binders |
| DEF21586A DE1051815B (en) | 1956-04-19 | 1956-11-06 | Process for granulating powders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1051815B true DE1051815B (en) | 1959-03-05 |
Family
ID=25973967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEF21586A Pending DE1051815B (en) | 1956-04-19 | 1956-11-06 | Process for granulating powders |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1051815B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3167442A (en) * | 1960-02-12 | 1965-01-26 | Internat Protected Metals Inc | Method of forming a resin coating on metal |
| DE3908022C1 (en) * | 1988-09-23 | 1990-03-29 | Degussa Ag, 6000 Frankfurt, De | |
| CN104271254A (en) * | 2012-03-30 | 2015-01-07 | 杜尔系统有限责任公司 | Dry-ice cleaning device and process for a painting installation |
-
1956
- 1956-11-06 DE DEF21586A patent/DE1051815B/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| None * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3167442A (en) * | 1960-02-12 | 1965-01-26 | Internat Protected Metals Inc | Method of forming a resin coating on metal |
| DE3908022C1 (en) * | 1988-09-23 | 1990-03-29 | Degussa Ag, 6000 Frankfurt, De | |
| CN104271254A (en) * | 2012-03-30 | 2015-01-07 | 杜尔系统有限责任公司 | Dry-ice cleaning device and process for a painting installation |
| CN104271254B (en) * | 2012-03-30 | 2018-06-01 | 杜尔系统有限责任公司 | For the dry ice cleaning device and method of spraying equipment |
| US10279453B2 (en) | 2012-03-30 | 2019-05-07 | Durr Systems Gmbh | Dry-ice cleaning in a painting installation |
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