DE512672C - Device for sifting fine-grained or dust-shaped material by means of an air or gas stream - Google Patents
Device for sifting fine-grained or dust-shaped material by means of an air or gas streamInfo
- Publication number
- DE512672C DE512672C DEST46381D DEST046381D DE512672C DE 512672 C DE512672 C DE 512672C DE ST46381 D DEST46381 D DE ST46381D DE ST046381 D DEST046381 D DE ST046381D DE 512672 C DE512672 C DE 512672C
- Authority
- DE
- Germany
- Prior art keywords
- air
- grained
- gas stream
- dust
- shaped material
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/086—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by the winding course of the gas stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G3/00—Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Combined Means For Separation Of Solids (AREA)
Description
Vorrichtung zum Sichten von feinkörnigem oder staubförmigem Gut mittels eines Luft- oder Gasstromes Bei bekannten Vorrichtungen zum Sichten von Stoffen mittels eines Luft- oder Gasstromes tritt das zu sichtende Gut mit dem Luftstrom tangential in ein schüsselartiges Gefäß, welches in einem trichterförmigen Gehäuse angeordnet ist, welches oben eine Austrittsöffnung für den Luftstrom hat. Die Sichtung wird durch Umkehr des Luftstromes hervorgerufen. Die ausfallenden Grieße reißen jedoch stets feine Teile mit sich, sd daß eine saubere Sichtung nicht stattfindet. Dieser Lbelstand soll gemäß der Erfindung dadurch vermieden werden, daß in der Wandung des unteren Teiles des Sichters, in dem sich die Grieße sammeln und aus dem die Grieße ausgetragen werden, Schlitze oder öffnungen vorgesehen sind, durch die ein Luftstrom in den Sichter tritt, der die abfallenden Grieße einer Nachsichtung unterwirft.Device for sifting fine-grained or powdery material by means of an air or gas flow In known devices for sifting substances by means of an air or gas stream, the material to be sifted enters with the air stream tangentially into a bowl-like vessel, which is in a funnel-shaped housing is arranged, which has an outlet opening for the air flow at the top. The sighting is caused by reversing the air flow. The failing semolina tear but always fine parts with it, so that a clean sifting does not take place. This Lbelstand should be avoided according to the invention that in the wall of the lower part of the sifter, in which the grit collects and from which the Grits are discharged, slots or openings are provided through which a Air flow enters the sifter, which subjects the falling grits to an indulgence.
In der Abbildung ist ein Beispiel des Erfindungsgegenstandes in zwei Schnitten dargestellt.In the figure is an example of the subject matter in two Sections shown.
In einem trichterförmigen Gehäuse a befindet sich ein schüsselartiges Gefäß b (Teller o. dgl.), in das das zu sichtende Gut mittels eines Luftstromes durch das Rohr c eingeführt wird. Das Feingut wird durch das Rohrd abgesaugt, und die Grieße sinken in dem Trichter nach unten. In der Wandung des letzteren sind im unteren Teil verstellbare Schlitze h vorgesehen, durch die Luft in das Gehäuse gesaugt oder gedrückt -wird. Diese Luft unterzieht die nach unten gleitenden Grieße einer Nachsichtung, wodurch die noch in ihnen befindlichen feinen; Teile ausgetragen -werden.In a funnel-shaped housing a there is a bowl-like one Vessel b (plate or the like) into which the goods to be sifted by means of an air stream is inserted through the tube c. The fine material is sucked off through the pipe, and the semolina sink down in the funnel. In the wall of the latter are adjustable slots h provided in the lower part, through the air into the housing sucked or pressed. This air undergoes the semolina sliding downwards an indulgence, whereby the fine ones still in them; Parts discharged -will.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST46381D DE512672C (en) | Device for sifting fine-grained or dust-shaped material by means of an air or gas stream |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST46381D DE512672C (en) | Device for sifting fine-grained or dust-shaped material by means of an air or gas stream |
Publications (1)
Publication Number | Publication Date |
---|---|
DE512672C true DE512672C (en) | 1930-11-15 |
Family
ID=7465145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEST46381D Expired DE512672C (en) | Device for sifting fine-grained or dust-shaped material by means of an air or gas stream |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE512672C (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE839153C (en) * | 1950-02-23 | 1952-05-15 | Alpine Ag Eisengiesserei | Process for cleaning coarse material from adhering fine material in air separators and air separators |
DE895691C (en) * | 1951-04-03 | 1953-11-05 | Hamburger Gaswerke Gmbh | Grinding device, especially of the so-called Fullermuehle type |
DE934926C (en) * | 1952-12-07 | 1955-11-10 | Ind G M B H | Gas stream separator |
DE939123C (en) * | 1952-04-01 | 1956-02-16 | Miag Vertriebs Gmbh | Method and device for pneumatic conveying or sifting of bulk goods |
DE1001883B (en) * | 1951-01-09 | 1957-01-31 | Vokes Ltd | Device for separating solid particles from an air stream |
EP1457268A2 (en) | 2003-03-10 | 2004-09-15 | Aco Co., Ltd. | Separation method and separation device |
DE10234280B4 (en) * | 2002-07-26 | 2009-12-03 | Otto Martin Maschinenbau Gmbh & Co. Kg | Thickness Planer |
-
0
- DE DEST46381D patent/DE512672C/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE839153C (en) * | 1950-02-23 | 1952-05-15 | Alpine Ag Eisengiesserei | Process for cleaning coarse material from adhering fine material in air separators and air separators |
DE1001883B (en) * | 1951-01-09 | 1957-01-31 | Vokes Ltd | Device for separating solid particles from an air stream |
DE895691C (en) * | 1951-04-03 | 1953-11-05 | Hamburger Gaswerke Gmbh | Grinding device, especially of the so-called Fullermuehle type |
DE939123C (en) * | 1952-04-01 | 1956-02-16 | Miag Vertriebs Gmbh | Method and device for pneumatic conveying or sifting of bulk goods |
DE934926C (en) * | 1952-12-07 | 1955-11-10 | Ind G M B H | Gas stream separator |
DE10234280B4 (en) * | 2002-07-26 | 2009-12-03 | Otto Martin Maschinenbau Gmbh & Co. Kg | Thickness Planer |
EP1457268A2 (en) | 2003-03-10 | 2004-09-15 | Aco Co., Ltd. | Separation method and separation device |
EP1457268A3 (en) * | 2003-03-10 | 2005-12-07 | Aco Co., Ltd. | Separation method and separation device |
CN100406142C (en) * | 2003-03-10 | 2008-07-30 | 亚科株式会社 | Separating method and separator |
US7424956B2 (en) | 2003-03-10 | 2008-09-16 | Aco, Co., Ltd. | Separation method and separation device |
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