DE371504C - Air sifter with a cone-shaped prescreen arranged in the air sifter housing above the spreading plate for pre-separating all coarse deposits from the material to be classified - Google Patents

Air sifter with a cone-shaped prescreen arranged in the air sifter housing above the spreading plate for pre-separating all coarse deposits from the material to be classified

Info

Publication number
DE371504C
DE371504C DEB103403D DEB0103403D DE371504C DE 371504 C DE371504 C DE 371504C DE B103403 D DEB103403 D DE B103403D DE B0103403 D DEB0103403 D DE B0103403D DE 371504 C DE371504 C DE 371504C
Authority
DE
Germany
Prior art keywords
air sifter
classified
cone
separating
prescreen
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
DEB103403D
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEB103403D priority Critical patent/DE371504C/en
Application granted granted Critical
Publication of DE371504C publication Critical patent/DE371504C/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
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • B07B4/025—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall the material being slingered or fled out horizontally before falling, e.g. by dispersing elements

Description

Windsichter mit einem im Windsichtergehäuse -über dem Streuteller angeordneten kegelförmigen Vorsieb zum Vorabscheiden aller gröberen Überschläge aus dem Sichtgut. Die vorliegende Erfiiidun:g bezieht sich auf Windsichter, hei denen das zu sichtende Gut durch drei getrennte Ausläufe je nach -der Feinheit des Sichtgutes als Mehl, Grieße und Gberschläge abgeschieden wird. Zu dem "Zwecke ist über dein Streuteller ein kegelföriniges Vorsieb eingebaut, das zur Entlastung des Windsichters alle gröberen Überschläge unmittelbar vorweg ausscheidet. so -d-aß sich die eigentliche Windsichtung lediglich auf (lie Trennung von Feingrießen und Feinmehl beschränkt. Die Erfindung besteht nun. darin. tlaß das kegelförmige Vorsieb mit einer Antriebvorrichtung versehen ist, so daß es gleichzeitig mit dem Streuteller in Uni-?> versetzt wird, wodurch das am äußeren Umfange aufgegebene Mahlgut nacheinander auf alle Teile des Siebes gelangt. Zweckmäßig erscheint es, daß das Vorsieb außerdem noch mit einer Klopfvorrichtung versehen ist, so daß es in ständiger Rüttelbewegung ist.Air sifter with a conical pre-screen arranged in the air sifter housing above the spreading disc for pre-separating all coarse flashovers from the material to be classified. The present invention relates to air separators, in which the goods to be classified are separated through three separate outlets, depending on the fineness of the goods to be classified, as flour, grits and flakes. For this purpose, a cone-shaped pre-sieve is installed over your spreading plate, which separates out all coarse flashovers immediately in advance to relieve the wind sifter. therein. Tlass the conical pre-screen is provided with a drive device, so that?> is added simultaneously with the spreading plate in Uni-, thereby the checked at the outer circumference grinding stock passes successively on all parts of the screen. Suitably, it appears that the preliminary screen also is still provided with a knocking device, so that it is in constant shaking motion.

Die Zeichnung stellt eine beispielsweise Ausführungsform des Erfindungsgegenstandes im Längsschnitt dar.The drawing represents an example embodiment of the subject matter of the invention in longitudinal section.

Das durch den Trichter a aufgegebene Sichtgut fließt auf das kegelförmige Vorsieb b, das alle gröberen Überschläge von dem Streuteller zurückhält und sie durch die Hohlnabe c dein Überschlagtrichter d zuführt, aus dem sie durch das Rohr e entfernt werden. Das durch das Sieb tretende, iin Windsichter zu sichtende Feingut gelängt auf den auf der Hohlnabe c befestigten Streuteller f, wird von diesem gegen den Verteilungsring geschleudert und dadurch aufgewirbelt. Die schwereren Grieße fallen in den Grießtrichter 1a und werden durch das Anschlußrohr i abgezogen, während das vom Ventilator k angesaugte Feinmehl in den Mehltrichter l gelangt und durch die Öffnung lia ausgeschieden wird.The material to be classified through the funnel a flows onto the conical one Pre-sieve b, which holds back all coarser flashovers from the spreading plate and they through the hollow hub c your rollover funnel d supplies, from which it passes through the pipe e removed. The fine material that passes through the sieve and is to be sifted in an air sifter lengthened to the spreading plate f, which is attached to the hollow hub c, is counteracted by this thrown the distribution ring and whirled it up. The heavier semolina fall into the semolina funnel 1a and are withdrawn through the connecting pipe i while the fine flour sucked in by the fan k enters the flour funnel l and passes through it the opening lia is excreted.

Der ;antrieb des Streutellers f geschieht von einer durch Riemenscheiben n angetriebenren Welle o aus mittels Kegelräilervorgeleges p. - Das kegelförmige Vorsieb b wird von derselben Welle o mittels eines Kegelrädervorgelegesl q in Umdrehung versetzt, daß seine Bewegung auf einen mit dem Siebe verbundenen und mittels Laufrollen r auf einem Laufring s geführten Zahnkranz t überträgt. Der Laufring s kann mit Nocken versehen sein, wodurch das Vorsieb b hei seinem Umlauf geklopft wird.The drive of the spreader plate f is done by one of belt pulleys n driven shaft o from by means of conical rail reduction gear p. - The cone-shaped one Pre-sieve b is rotated by the same shaft o by means of a bevel gear reduction q offset that its movement on one connected to the sieve and by means of rollers r on a bearing ring s guided ring gear t transmits. The race s can with Be provided cams, whereby the pre-screen b is knocked hot its circulation.

Claims (1)

PATENTANSPRÜCHE: i. Windsichter finit einem ini W indsichtergehäuse über dem Streuteller angeordneten kegelförmigen Vorsieb zum Voräbscheiden aller gröberen Überschläge aus dein-Sichtzut, dadurch gekennzeichnet, daß das Vorsieb mit einer Antriebvorrichtung versehen ist, so daß es in Umdrehung versetzt wird. . z. Windsichter nach Anspruch i, dadurch gekennzeichnet, daß das kegelför-Z, in "e Vorsieb mit einer Klopfvorrichtung it, e versehen ist. PATENT CLAIMS: i. Wind sifter finitely a conical pre-screen arranged ini windsifter housing above the spreading plate for pre-separating all coarser flashovers from your-sight-giving, characterized in that the pre-screen is provided with a drive device so that it is set in rotation. . z. Wind sifter according to claim i, characterized in that the cone-Z, in "e prescreen is provided with a knocking device it, e.
DEB103403D Air sifter with a cone-shaped prescreen arranged in the air sifter housing above the spreading plate for pre-separating all coarse deposits from the material to be classified Expired DE371504C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB103403D DE371504C (en) Air sifter with a cone-shaped prescreen arranged in the air sifter housing above the spreading plate for pre-separating all coarse deposits from the material to be classified

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB103403D DE371504C (en) Air sifter with a cone-shaped prescreen arranged in the air sifter housing above the spreading plate for pre-separating all coarse deposits from the material to be classified

Publications (1)

Publication Number Publication Date
DE371504C true DE371504C (en) 1923-03-16

Family

ID=6990735

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB103403D Expired DE371504C (en) Air sifter with a cone-shaped prescreen arranged in the air sifter housing above the spreading plate for pre-separating all coarse deposits from the material to be classified

Country Status (1)

Country Link
DE (1) DE371504C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198655B (en) * 1964-05-30 1965-08-12 Hazemag Hartzerkleinerung Circulating air air separator
EP0593955A2 (en) * 1992-10-20 1994-04-27 BUEHLER GmbH Device and method for cleaning a mixture of substantially granule-shape grains

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198655B (en) * 1964-05-30 1965-08-12 Hazemag Hartzerkleinerung Circulating air air separator
EP0593955A2 (en) * 1992-10-20 1994-04-27 BUEHLER GmbH Device and method for cleaning a mixture of substantially granule-shape grains
EP0593955A3 (en) * 1992-10-20 1995-04-05 Buehler Gmbh Device and method for cleaning a mixture of substantially granule-shape grains.
US5458245A (en) * 1992-10-20 1995-10-17 Buhler Gmbh Device for cleaning a mixture of substantially granular grains and method for cleaning this mixture of grains

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