Patent Number: 6,253,927

Title: Roller screen

Abstract: The invention relates to a roller screen for screening pellets for sintering, the roller screen including several successive rotating rollers that are spaced apart and arranged transversally in relation to the proceeding direction of the material. The roller screen is provided with separate rotation motors for rotating each of the rollers and an adjusting member for adjusting the mutual position of the rollers in order to screen a desired particle size. The screen path of the roller screen is composed of three successive screening parts, which are mutually connected so that the rollers of the screening parts are made to rotate in relation to each other, and the speed of rotation of the roller increases in the proceeding direction of the material towards the final end of the roller screen.

Inventors: Vaananen; Eero (Tornio, FI), Jankkila; Martti (Tornio, FI), Mustikka; Lauri (Tornio, FI), Rantala; Pekka (Tornio, FI)

Assignee: Outokumpu Technology Oy

International Classification: B07B 1/14 (20060101); B07B 1/12 (20060101); B07B 013/05 ()

Expiration Date: 07/03/2018