DE116195C

DE116195C -

Info

Publication number: DE116195C
Application number: DENDAT116195D
Authority: DE

Description

Die den Gegenstand vorliegender Erfindung bildende Sortirvorrichtung soll zur Trennung von Mahlproducten, insbesondere von Mineralien in Feinmehl und nahezu mehlfreien Gries dienen.The sorting device forming the subject of the present invention is intended for separation of ground products, especially of minerals in fine flour and almost flour-free semolina to serve.

Um diesen Zweck zu erreichen, werden die von einem Zerkleinerungsapparat (Kugelmühle) kommenden Mineralien Streuscheiben zugeführt, welche dieselben bei ihrer Rotation gegen Anwurfringe schleudern, von welch letzteren die Materialien nach abwärts fallen und während dieses Vorganges durch einen Luftstrom getrennt werden.In order to achieve this, the crushing apparatus (ball mill) incoming minerals scattering discs supplied, which the same against throwing rings during their rotation hurl, from which latter the materials fall downwards and during this process can be separated by a stream of air.

Das Schleudern des zu sortirenden Gutes mittels Streuteller gegen Anwurfringe unter Verwendung eines Luftstromes ist nicht neu und bildet somit nicht den Gegenstand vorliegender Erfindung, sondern letztere ist in der besonderen Construction einer solchen Vorrichtung zu sehen. Nach vorliegender Erfindung sind mehrere solcher bekannten Schleuderscheiben unter einander angeordnet, wobei diese Schleuderscheiben von oben nach unten an Gröfse zunehmen. Von dem Anwurfringe der oberen Schleuderscheibe fallen die Materialien auf die nächst tiefer liegende Schleuderscheibe u. s. w. Auf dem Wege von der oberen Schleuderscheibe zu der tiefer liegenden werden die zu' trennenden Materialien von einem in entgegengesetzter Richtung geführten, in der Maschine kreisenden Luftstrom durchstrichen, derart, dafs die Luft mit den feinen Mehltheilchen geschwängert und diese so abgeführt werden, während die schweren Griese abwärts fallen und gesondert abgeführt werden. Da der Luftstrom ein kreisender oder drehender ist, so mufs er in einem besonderen Raum der Maschine die Staubtheilchen absetzen, um dann aufs Neue mit solchen geschwängert zu werden. Besonders durch das > Schleudern der Materialien gegen die Anwurfringe wird eine Lockerung der den Griesen anhaftenden Mehltheilchen erreicht, so dafs letztere von dem Luftstrom weggetragen werden können.The hurling of the goods to be sorted by means of a spreading plate against throwing rings Use of an air stream is not new and thus does not form the subject matter here Invention, but the latter, is in the special construction of such a device to see. According to the present invention, several such known centrifugal discs are arranged one below the other, these slingshot discs increasing in size from top to bottom. From the throwing ring of the upper slinger the materials fall onto the next lower lying centrifugal disc and so on Paths from the upper centrifugal disk to the lower one become the ones to be separated Materials from one that is guided in the opposite direction and circling in the machine The air flow was passed through in such a way that the air was impregnated with the fine particles of flour and these are thus carried away, while the heavy grits fall downwards and separately be discharged. Since the air flow is circling or rotating, it must be in deposit the dust particles in a special room of the machine and then again to get pregnant with such. Especially by> throwing the materials against the thrown rings there is a loosening of the flour particles clinging to the semolina achieved so that the latter can be carried away by the air stream.

Die neue Sortirvorrichtung ist auf der beiliegenden Zeichnung im Verticalschnitt veranschaulicht. The new sorting device is illustrated in the accompanying drawing in vertical section.

Das zu sortirende Material gelangt von dem Mahlapparat durch den Einlauftrichter α auf eine Schleuderscheibe b (Streuteller), welche dasselbe gegen einen Anwurfring c schleudert. Dieser Anwurfring c ist so angeordnet und hat eine solche Form (ein cylin drischer oder nach unten sich erweiternder Mantel), dafs das Material von seiner Richtung abgelenkt wird und in vertheiltem Zustande nach unten fällt j hier trifft es auf eine zweite rotirende Schleuderscheibe d (Streuteller), die einen gröfseren Durchmesser hat als die obere Scheibe. Das Material wird durch diese Scheibe d nochmals nach aufsen gegen einen zweiten Anwurfring e, und zwar mit gröfserer Kraft geschleudert, der das Material in gleicher Weise ablenkt und vertheilt; die Schleuderscheibe d ist in der Mitte mit einer Oeffnung versehen. Beide Schleuderscheiben b und d sitzen auf der vertical en Achse/. Diese trägt auch den oberhalbThe material to be sorted comes from the grinding apparatus through the inlet funnel α onto a centrifugal disc b (spreading plate), which hurls it against a throwing ring c. This starting ring c is arranged and has such a shape (a cylindrical or downwardly widening jacket) that the material is deflected from its direction and falls downwards in a distributed state j here it meets a second rotating centrifugal disk d (spreading disc ), which has a larger diameter than the upper disk. The material is thrown through this disk d again outwards against a second throwing ring e, with a greater force, which deflects and distributes the material in the same way; the centrifugal disc d is provided with an opening in the middle. Both slinger discs b and d sit on the vertical axis /. This also carries the one above

Claims

the centrifugal disks arranged fan g and is driven from the outside by conical wheels. The fan and centrifugal discs are enclosed by a jacket w which ends at the bottom in a funnel m ^1. A second funnel η is arranged within this funnel m ¹ , which catches the material falling from the lower centrifugal disk d. The air flow generated by the fan g circulates in the apparatus in the direction of the arrows drawn, ie it makes a cycle,. as already mentioned at the beginning. On the way from the upper centrifugal disk b to the lower centrifugal disk d , the material is swept through by the air flow, and the fine flour particles follow the air flow. The material collected on the lower centrifugal disk and thrown apart a second time is loosened even more completely by this repeated operation and as a result of the larger diameter of the centrifugal disk, so that the flour particles are easily detached from the grains. The fine flour is then separated out by the upward air stream, which carries along the dust particles, while the heavy semolina, falling down into the funnel η , is discharged from this through the outlet pipe n ^l.

The dust entrained by the air separates after passing the fan from the former by the centrifugal effect or. by the greater specific gravity, and that of dust or. Air, for the most part freed from the flour, returns under the centrifugal disks, while the flour enters the funnel m ¹ and is discharged from this through the outlet pipe m ' ^2. The spinning can also be done more than twice by z. B. the material from the second centrifugal disk d still reaches a third, etc.

Patent claims:

ι. A device for the separation of ground products, in particular minerals, into fine flour and almost flour-free semolina using a sucking and continuously circulating air stream, as well as centrifugal disks and throwing rings, characterized in that two or more centrifugal disks (bd ....) ( spreading plate) extending from top to bottom - increasing magnitude are arranged on the same axis in the same space, wherein the centrifugal discs because of their ver ¹ different magnitude in conjunction -with throw-off rings (CE) to be separated feed during its movement downwards with ever Throw at the throwing rings with greater force than with the previous centrifugal disk, for the purpose of forming a cloud of dust, the lighter parts of which (flour) are sucked upwards, while the almost flour-free semolina falls down from the lowest centrifugal disk.

2. A device for the separation of Mahlproducten, in particular minerals, according to patent claim ι, characterized in that the lower centrifugal disk (d) is perforated in its center, so that the sucking and rotating air flow both in the middle of the centrifugal disk as well can enter the area between the centrifugal discs and throwing rings, which is impregnated with fine flour.

For this purpose ι sheet of drawings.