DE738286C - Process for fine comminution - Google Patents
Process for fine comminutionInfo
- Publication number
- DE738286C DE738286C DEG102564D DEG0102564D DE738286C DE 738286 C DE738286 C DE 738286C DE G102564 D DEG102564 D DE G102564D DE G0102564 D DEG0102564 D DE G0102564D DE 738286 C DE738286 C DE 738286C
- Authority
- DE
- Germany
- Prior art keywords
- dispersion liquid
- fine
- fine comminution
- comminution
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/06—Lysis of microorganisms
- C12N1/066—Lysis of microorganisms by physical methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C19/186—Use of cold or heat for disintegrating
Description
Verfahren zur Feinstzerkleinerung Die Erfindung betrifft ein Verfahren zur Feinstzerkleinerung, bei dem in an sich bekannter Weise das zu mahlende bzw. zu dispergierendeGut in einerDispersionsflüssigkeit, z. B. Wasser, zerteilt wird. Es handelt sich also um die besondere Durchführung eines Zerkleinerungs- bzw. Mahlverfahrens, bei d"em in einer Flüssigkeit zu zerteilendes bzw. zu zerkleinerndes Gut, insbesondere in schnell laufenden Mühlen, z. B. Kodloidmühlen, 'behandelt wird.Method for fine comminution The invention relates to a method for fine comminution, in which the material to be ground or material to be dispersed in a dispersing liquid, e.g. B. water is divided. It is about the special implementation of a comminution or grinding process, in the case of the material to be divided or comminuted in a liquid, in particular in high-speed mills, e.g. B. Kodloidmühlen, 'is treated.
Die bekannten Naßmahlverfahren beruhen alle darauf, daß die zu dispergierende Substanz mit Hilfe einer Dispersionseinrichtung in Anwesenheit von mehr oder weniger Flüssigkeit gegebenenfalls bis zu kolloidet Feinheit zerteilt wird. Der Zerteilung des Gutes in der Flüssigkeit sind technische Grenzen ge, setzt.The known wet milling processes are all based on the fact that the to be dispersed Substance using a dispersing device in the presence of more or less Liquid is broken up to colloidal fineness if necessary. The division There are technical limits to the good in the liquid.
Es wurde nun gefunden, daß sich die Mahlwirkung in Feinstzerkleinerungs- bzw. Dispersionseinrichtungen, wie schnellaufenden Mühlen, insbesondere Kodloidmühlen, z. B. einer Vibrationskolloidmühle, oder überhaupt Kolloidmühlen, bei denen das Gut einen engen Arbeitsspalt zwischen einem Rotor und einem Stator durchläuft, wesentlich für viele-Zwecke steigern läßt, wenn man dgs Gut- mit seiner Dispersionsflüssigkeit, die gegebenenfalls von Natur aus auch in dem Gut vorhanden sein bann, zunächst durch Gefrieren verfestigt und dieses verfestigte Gut durch die. Feinstzer-' kleinerungseinrichtung, also sozusagen in fester Form; führt; dabei hat man es in der Hand, den Mahlvorgang in jeder gewünschten Weise je nach der Kühlung des Gutes, die bis zu Tiefsttemperaturen erfolgen kann, abzustimmen, wobei die gewünschte Temperatur auch während des Mahlvorgangs praktisch aufrechterhalten werden kann, indem die Mühle selbst entsprechend tief gekühlt wird.It has now been found that the grinding action in fine comminution or dispersion devices, such as high-speed mills, in particular codloid mills, z. B. a vibratory colloid mill, or even colloid mills, where the Well passing through a narrow working gap between a rotor and a stator is essential for many purposes can be increased if one dgs Gut- with its dispersion liquid, which may also be naturally present in the property, initially through Freeze solidified and this solidified good through the. Fine shredding device, so, so to speak, in solid form; leads; you have it in your hand, the grinding process in any desired way, depending on the cooling of the goods, which can be as low as the lowest possible temperatures can be done to match, the desired temperature also during the grinding process can practically be sustained by making the grinder itself appropriately deep is cooled.
Die Zerstörungswirkung bei dieser Arbeitsweise tritt besonders in Erscheinung bei der Zerstörung tierischer und pflanzlicher Zellen, z. B. bei gefrorenen Zellaufschwemmungen. Das gefrorene Gut wird den Feinstzerkleinerungseinrichtungen, zweckmäßig in vorzerkleinerter Form, z. B. Grießform, zugeführt.The destructive effect in this way of working occurs particularly in Appearance in the destruction of animal and plant cells, e.g. B. frozen Cell suspensions. The frozen goods are sent to the ultra-fine shredding equipment, appropriately in pre-shredded form, for. B. semolina form supplied.
Die Wirkung ist wahrscheinlich darauf zurückzuführen, daß bei der Zerstörung der kleinsten Kriställchen der Dispersionsflüssigkeit durch den Feinstmahlvorgang eine Mitzerstörung von pflanzlichen Zellen oder tierischen Zelleibern erfolgt, die sonst der unmittelbaren Zerstörung im flüssigen Medium nicht oder nur sehr schwer zugänglich sind. 1 Es läßt sich z. B. mit gutem Erfolg nach dem Verfahren eine Hefeaufschwemmung in Wasser verarbeiten, die io °/o Hefetrockensubstanz enthält.The effect is probably due to the fact that the destruction of the smallest crystals of the dispersion liquid by the finest grinding process also destroys plant cells or animal cell veins, which otherwise are not or only with great difficulty amenable to immediate destruction in the liquid medium. 1 It can be z. B. process with good success by the method a yeast suspension in water which contains 10% dry yeast substance.
Wesentlich bei dem neuen Verfahren xs.' daß schon von vornherein eine ziemlich weit=' gehende Zerteilung des Gutes in der Dispersionsflüssigkeit vorliegt, wie es bei der Durchführung von Feinstzerkleinerungen üblich und notwendig ist.Essential in the new method xs. ' that a fairly far = 'there is extensive fragmentation of the material in the dispersion liquid, as is customary and necessary when performing ultra-fine comminution.
Das neue Verfahren betrifft also eine besondere Abwandlung der bekannten Naßmahlverfahren, indem die Naßmahlung durch einen Gefrierprozeß in eine neue Art von Mahlung übergeführt wird, bei der sowohl die Vorteile ,ler Naß- als auch der Trockenvermählung gegeben sind. Das Verfahren unterscheidet sich dadurch grundsätzlich von bekannten Mahlverfahren, bei denen auch schon tiefe Temperaturen angewendet worden sind und bei denen stets nur eine übliche Vermählung des Gutes und nicht eine Feinstzerkleinerung entsprechend den Wirkungen einer Naßvermahlung stattfindet.The new method thus concerns a special modification of the known Wet milling process by changing wet milling through a freezing process in a new way is transferred from grinding, in which both the advantages, ler wet as well as the Dry marriage are given. The procedure is fundamentally different of known grinding processes, in which low temperatures are also used have been and where always only a customary marriage of the property and not a fine comminution takes place corresponding to the effects of wet milling.
Es ist z. B. schon bekannt, wenig spröde Stoffe, wie z. B. Holz, Kork usw., gegebenenfalls in Verbindung mit die Vermählung an sich fördernden Stoffen, wie Zement usw., unter Anwendung von Kältemitteln, beispielsweise flüssiger Luft, der Zerkleinerung zu unterwerfen; es liegt in diesem Falle im Gegensatz zu dem neuen Verfahren von vornherein keine Zerteilung des Gutes in einer Dispersionsflüssigkeit vor, die dann gefroren und zusammen mit dem Gut vermahlen wird. Es ist weiter bekannt, braunen Zucker bei Temperaturen unter o° zu vermahlen, um dadurch die klebrigen Eigenschaften des Rohrzuckers zu überwinden; auch dieses Verfahren 'ist dem vorliegenden Verfahren nicht als äquivalent anzusehen.It is Z. B. already known, little brittle substances such. B. wood, cork etc., possibly in connection with substances that promote the marriage, such as cement, etc., using refrigerants such as liquid air, subject to crushing; in this case it is opposed to the new one Procedure from the outset, no division of the material in a dispersion liquid which is then frozen and ground together with the goods. It is further known to grind brown sugar at temperatures below 0 ° to make the sticky To overcome properties of cane sugar; this procedure is also the present one Procedure not to be regarded as equivalent.
Es gehört ferner zum Stand der Technik, Stoffe bei tiefer Temperatur zu vermahlen, die sich sonst infolge ihrer Klebrigkeit an den Wänden der Mühle festsetzen und die Siebbleche verschmieren würden oder die zur Klumpenbildung neigen; auch die Vermählung von explosiven Stoffen bei tiefen Temperaturen kommt hier in Frage. Bei diesem bekannten Verfahren wird wiederum nicht ein schon in der Dispersionsflüssigkeit zerteiltes Gut zum Gefrieren gebracht, um dann zusammen mit dem gefrorenen Dispersionsmittel feinst zermahlen zu werden.It is also part of the state of the art, substances at low temperatures to grind, which otherwise stick to the walls of the mill due to their stickiness and the sieve plates would smear or which tend to form lumps; even the marriage of explosive substances at low temperatures is an option here. In this known method, in turn, there is no already in the dispersion liquid cut up material to freeze, then together with the frozen dispersant to be finely ground.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG102564D DE738286C (en) | 1940-11-16 | 1940-11-16 | Process for fine comminution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG102564D DE738286C (en) | 1940-11-16 | 1940-11-16 | Process for fine comminution |
Publications (1)
Publication Number | Publication Date |
---|---|
DE738286C true DE738286C (en) | 1943-08-10 |
Family
ID=7141605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG102564D Expired DE738286C (en) | 1940-11-16 | 1940-11-16 | Process for fine comminution |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE738286C (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE945475C (en) * | 1954-11-04 | 1957-02-21 | Groneweg & Meintrup | Process for comminuting or grinding grainy foodstuffs or luxury foods, especially roasted coffee beans |
DE1053292B (en) * | 1954-04-08 | 1959-03-19 | Rene Marie Berthier | Process for shredding fiber material into short pieces |
FR2567042A1 (en) * | 1984-07-04 | 1986-01-10 | Kohlensaeurewerk Deutschland | Process for crushing (milling, pulverising) cell-containing material via explosion |
WO2005056748A1 (en) * | 2003-12-08 | 2005-06-23 | Covaris, Inc. | Apparatus and methods for sample preparation |
DE102007016221A1 (en) * | 2007-04-04 | 2008-10-09 | Qiagen Gmbh | Pulverizer and associated method for preparing to process a biological sample |
EP2166335A1 (en) | 2008-09-18 | 2010-03-24 | Qiagen GmbH | Method and device for simultaneous automatic decomposition of several biological probes |
US7686500B2 (en) | 1998-10-28 | 2010-03-30 | Covaris, Inc. | Method and apparatus for acoustically controlling liquid solutions in microfluidic devices |
US7687026B2 (en) | 1998-10-28 | 2010-03-30 | Covaris, Inc. | Apparatus and methods for controlling sonic treatment |
US7981368B2 (en) | 1998-10-28 | 2011-07-19 | Covaris, Inc. | Method and apparatus for acoustically controlling liquid solutions in microfluidic devices |
US8709359B2 (en) | 2011-01-05 | 2014-04-29 | Covaris, Inc. | Sample holder and method for treating sample material |
-
1940
- 1940-11-16 DE DEG102564D patent/DE738286C/en not_active Expired
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1053292B (en) * | 1954-04-08 | 1959-03-19 | Rene Marie Berthier | Process for shredding fiber material into short pieces |
DE945475C (en) * | 1954-11-04 | 1957-02-21 | Groneweg & Meintrup | Process for comminuting or grinding grainy foodstuffs or luxury foods, especially roasted coffee beans |
FR2567042A1 (en) * | 1984-07-04 | 1986-01-10 | Kohlensaeurewerk Deutschland | Process for crushing (milling, pulverising) cell-containing material via explosion |
US7686500B2 (en) | 1998-10-28 | 2010-03-30 | Covaris, Inc. | Method and apparatus for acoustically controlling liquid solutions in microfluidic devices |
US7981368B2 (en) | 1998-10-28 | 2011-07-19 | Covaris, Inc. | Method and apparatus for acoustically controlling liquid solutions in microfluidic devices |
US7687026B2 (en) | 1998-10-28 | 2010-03-30 | Covaris, Inc. | Apparatus and methods for controlling sonic treatment |
US7328628B2 (en) * | 2003-12-08 | 2008-02-12 | Covaris, Inc. | Apparatus and methods for sample preparation |
US7677120B2 (en) | 2003-12-08 | 2010-03-16 | Covaris, Inc. | Apparatus for sample preparation |
WO2005056748A1 (en) * | 2003-12-08 | 2005-06-23 | Covaris, Inc. | Apparatus and methods for sample preparation |
WO2008122550A3 (en) * | 2007-04-04 | 2009-03-19 | Qiagen Gmbh | Pulverizer and corresponding method for preparing a biological sample for processing |
WO2008122550A2 (en) * | 2007-04-04 | 2008-10-16 | Qiagen Gmbh | Pulverizer and corresponding method for preparing a biological sample for processing |
DE102007016221A1 (en) * | 2007-04-04 | 2008-10-09 | Qiagen Gmbh | Pulverizer and associated method for preparing to process a biological sample |
EP2166335A1 (en) | 2008-09-18 | 2010-03-24 | Qiagen GmbH | Method and device for simultaneous automatic decomposition of several biological probes |
EP2503316A1 (en) | 2008-09-18 | 2012-09-26 | Qiagen GmbH | Method and device for simultaneous automatic decomposition of several biological probes |
US9243984B2 (en) | 2008-09-18 | 2016-01-26 | Qiagen Gmbh | Method and apparatus for the simultaneous, automated decomposition of a plurality of biological samples |
US8709359B2 (en) | 2011-01-05 | 2014-04-29 | Covaris, Inc. | Sample holder and method for treating sample material |
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