DE1019260B - Method and device for sieving starch milk - Google Patents
Method and device for sieving starch milkInfo
- Publication number
- DE1019260B DE1019260B DEST10742A DEST010742A DE1019260B DE 1019260 B DE1019260 B DE 1019260B DE ST10742 A DEST10742 A DE ST10742A DE ST010742 A DEST010742 A DE ST010742A DE 1019260 B DE1019260 B DE 1019260B
- Authority
- DE
- Germany
- Prior art keywords
- nozzles
- starch milk
- screened
- supply
- sieve
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/52—Regenerating the filter material in the filter by forces created by movement of the filter element
- B01D33/56—Regenerating the filter material in the filter by forces created by movement of the filter element involving centrifugal force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/60—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for washing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
- B01D33/763—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes for continuously discharging concentrated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
- B04B15/12—Other accessories for centrifuges for drying or washing the separated solid particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
- B04B3/04—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/02—Filtering elements having a conical form
Description
Verfahren und Vorrichtung zum Sieben von Stärkemilch Zusatz zum Patent 963 590 Zum Abtrennen von Feinfaser aus der beim Auswaschen der Stärke aus dem Mahlgut des Rohstoffes anfallenden Stärkemilch benutzt man heute ausschließlich Siebmaschinen, z. B. Schüttelsiebe oder umlaufende Rund- oder Sechskantsiebe. Für das Abtrennen der Feinfaser ist je nach Art der Stärke eine sehr feine Bespannung, beispielsweise Seidengaze Nr. 12 bis 20, erforderlich. Diese Siebvorrichtungen nehmen sehr viel Platz in Anspruch, es werden sehr große Siebflächen benötigt. Vor allem setzt sich aber die Siebbespannung nach verhältnismäßig kurzer Zeit je nach Stärkeart in 8 bis 24 Stunden so mit feinen Fasern zu, daß die Siebrahmen abgenommen und gereinigt werden müssen. Method and device for sieving starch milk Addition to the patent 963 590 For separating fine fibers from when washing the starch from the ground material The starch milk obtained from the raw material is used today exclusively by sieving machines, z. B. shaking sieves or rotating round or hexagonal sieves. For severing the fine fiber is a very fine covering, for example, depending on the type of thickness No. 12 to 20 silk gauze required. These sieving devices take up a lot Requires space, very large screen areas are required. Above all, sits down but the screen covering after a relatively short time depending on the type of starch in 8 up to 24 hours so with fine fibers that the sieve frames are removed and cleaned Need to become.
Alle diese Nachteile vermeidet man, wenn man die zum Auswaschen von Stärke vorgeschlagenen Schleudereinrichtungen nach dem Patent 963 590 zum Sieben verwendet, bei dem innerhalb einer rotierenden Siebtrommel Strahldüsen mit relativer Drehzahl zur Siebtrommel umlaufen. All of these disadvantages are avoided by using the washing machine Strength proposed centrifugal devices according to the patent 963 590 for sieving used in which jet nozzles with relative Rotate speed to the sieve drum.
Während bei den genannten Vorrichtungen zur Auswaschung von Stärke aus dem Mahlgut dieses in die Siebtrommel eingeführt und das Waschwasser den Strahldüsen zugeführt wird, wird nach der Erfindung die zu siebende faserhaltige Stärkemilch den Strahldüsen zugeführt und durch diese auf die Siebfläche aufgegeben. While with the mentioned devices for washing out starch from the ground material this is introduced into the sieve drum and the washing water the jet nozzles is supplied, the fiber-containing starch milk to be sieved is according to the invention fed to the jet nozzles and passed through them onto the screen surface.
Zur Erläuterung dient die schematische Darstellung einer Siebschleuder der genannten Art, wie sie im Patent 963 590 vorgeschlagen ist. Innerhalb der Siebtrommel 10 mit den Sieben 20 ist das mit Düsen besetzte Düsenbrausensystem 2 angeordnet, das sich mit relativer Drehzahl gegenüber der Trommel dreht. Die Arme 2 sitzen mit Zuleitungen 21 auf dem Rohr 22, das seinen Antrieb über das Rad 23 erhält, während die Trommel 10 und das Sieb 20 über ein Rad 24 angetrieben werden. Das Rohr 22 dient als Welle und trägt am rechten Ende einen feststehenden Zuleitungskörper 25. The schematic representation of a centrifugal sieve serves as an explanation of the type mentioned, as proposed in patent 963,590. Inside the sieve drum 10 with the sieves 20, the nozzle shower system 2, which is equipped with nozzles, is arranged, which rotates at a relative speed in relation to the drum. The arms 2 sit with Supply lines 21 on the tube 22, which receives its drive via the wheel 23 while the drum 10 and the sieve 20 are driven via a wheel 24. The tube 22 is used as a shaft and carries a stationary lead body 25 at the right end.
Die zu siebende Stärkemilch wird für den Siebvorgang bei B dem ringförmigen Rohrkanal 1 zugeführt und gelangt durch diesen über die Querleitungen 21 in das Düsenbrausensystem 2. Die Düsen 26 strahlen die Stärkemilch auf die Siebfläche 20 auf. Deren Bespannung ist so fein gewählt, daß nur die Flüssigkeit mit der Stärke hindurchtritt, während die Faser mit dem Siebgewebe verbleibt. Bei kegeligen Siebtrommeln bewegt sich infolge der Einwirkung der Zentrifugalkraft die Faser selbsttätig nach dem Ablaufende E der Siebtrommel hin und tritt bei C aus. The starch milk to be sieved becomes the ring-shaped for the sieving process at B Pipe channel 1 is supplied and passes through it via the cross lines 21 into the Nozzle shower system 2. The nozzles 26 jet the starch milk onto the sieve surface 20 on. Their covering is chosen so fine that only the liquid with the starch passes while the fiber remains with the screen fabric. With conical sieve drums The fiber moves automatically as a result of the effect of centrifugal force the drain end E of the sieve drum and exits at C.
Durch die Relativbewegung der Düsenstrahlen zu der Siebtrommel werden die feinen Fasern während des Durchlaufens immer wieder aufgespült und dadurch gehindert, sich auf der Siebfläche festzusetzen. Die Strahldüsen reinigen also laufend die Siebfläche. Bei schwach kegeligen Siebtrommeln bzw. bei zylindrischen Siebtrommeln bewirken entsprechend gerichtete Strahlen der einströmenden Stärkemilch die Beförderung der feinen Fasern zum Auslaufende der Trommel.Due to the relative movement of the nozzle jets to the sieve drum the fine fibers washed up again and again during the passage and thus prevented, to settle on the sieve surface. the Jet nozzles constantly clean the screen surface. Effect on slightly conical screen drums or on cylindrical screen drums accordingly directed jets of the inflowing starch milk the transport of the fine fibers at the end of the drum.
In den meisten Fällen ist es notwendig, die Feinfaser vor dem Verlassen der Siebfläche noch auszuwaschen, d. h. die anhaftenden Stärketeilchen von der Faser abzutrennen.In most cases it is necessary to remove the fine fiber before leaving the sieve surface to be washed out, d. H. the adhering starch particles from the fiber to separate.
Bei dem aus der Zeichnung ersichtlichen Ausführungsbeispiel dient dazu Frischwasser. Dieses wird bei A in das Rohr 3 eingeleitet und gelangt dadurch zu Waschdüsen 4, die an Querleitungen 27 sitzen. In the embodiment shown in the drawing is used plus fresh water. This is introduced into the pipe 3 at A and passes through it to washing nozzles 4, which are seated on cross lines 27.
Diese stehen in direkter Verbindung mit Rohr 3. Die Düsen 4 bestrahlen die Feinfaser vor deren Austritt mit Frischwasser und waschen dadurch die letzten Stärkereste von der Feinfaser ab.These are in direct connection with pipe 3. The nozzles 4 irradiate the fine fibers with fresh water before they exit, thereby washing the last Stronger residues from the fine fibers.
Claims (4)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL108540D NL108540C (en) | 1956-01-09 | ||
NL213535D NL213535A (en) | 1956-01-09 | ||
DEST10742A DE1019260B (en) | 1956-01-09 | 1956-01-09 | Method and device for sieving starch milk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST10742A DE1019260B (en) | 1956-01-09 | 1956-01-09 | Method and device for sieving starch milk |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1019260B true DE1019260B (en) | 1957-11-07 |
Family
ID=7455180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEST10742A Pending DE1019260B (en) | 1956-01-09 | 1956-01-09 | Method and device for sieving starch milk |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1019260B (en) |
NL (2) | NL108540C (en) |
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0
- NL NL213535D patent/NL213535A/xx unknown
- NL NL108540D patent/NL108540C/xx active
-
1956
- 1956-01-09 DE DEST10742A patent/DE1019260B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
NL108540C (en) | |
NL213535A (en) |
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