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 stream

Info

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
Application number
DEST46381D
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.)
Steitz & Co GmbH
Original Assignee
Steitz & Co GmbH
Publication date
Priority to DEST46381D priority Critical patent/DE512672C/en
Application granted granted Critical
Publication of DE512672C publication Critical patent/DE512672C/en
Expired legal-status Critical Current

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

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)

PATENTANSPRUCH: Vorrichtung zum Sichten von feinkörnigem oder staubförmigem Gut mittels eines Luft- oder Gasstromes mit einem trichterförmigen, oben mit einem mittleren Luft-(Gas-) Abzug versehenen Gehäuse und einer mittleren Schüssel, in welche das Sichtgut eingeführt wird, dadurch gekennzeichnet, daß in der Wandung des Sichtergehäuses in dessen unterem Teil regelbare Lufteintrittsöffnungen vorgesehen sind.PATENT CLAIM: Device for sifting fine-grained or dusty Well by means of an air or gas stream with a funnel-shaped, above with a middle air (gas) ventilated housing and a middle bowl, in which the cut material is introduced, characterized in that in the wall of the separator housing provided in its lower part adjustable air inlet openings are.
DEST46381D Device for sifting fine-grained or dust-shaped material by means of an air or gas stream Expired DE512672C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (10)

* Cited by examiner, † Cited by third party
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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