초록 ▼

An appliance for sorting and deflaking fiber suspensions has a rotor with a horizontal axis rotatively mounted in a housing. In a first, inlet rotor zone the rotor is provided with entraining means for extracting by centrifugation contaminating particles of high relative density. The rotor is surrou

An appliance for sorting and deflaking fiber suspensions has a rotor with a horizontal axis rotatively mounted in a housing. In a first, inlet rotor zone the rotor is provided with entraining means for extracting by centrifugation contaminating particles of high relative density. The rotor is surrounded donwstream by a screening cylinder and is also provided with entraining means for the fiber suspension, which deflake and sort out the fiber suspension in a second rotor zone. In a third rotor zone the fibers are washed out of the rejects after water has been added and in a fourth zone the rejects are dehydrated.

대표청구항 ▼

An apparatus for sorting and deflaking fibrous suspension, comprising: at least one annular screen; a housing accommodating said screen and having a first and a second housing end region, said housing including an inlet for the fibrous suspension to be processed being disposed proximate said first h

An apparatus for sorting and deflaking fibrous suspension, comprising: at least one annular screen; a housing accommodating said screen and having a first and a second housing end region, said housing including an inlet for the fibrous suspension to be processed being disposed proximate said first housing end region, an accepted material outlet for receiving a sorted suspension portion passed through said screen, and a rejected material outlet for receiving a rejected suspension portion not passed through said screen, said rejected material outlet being disposed proximate said second housing end region; rotor means mounted within said housing for rotation about a substantially horizontal rotor axis for sorting and deflaking fibrous suspension, said rotor means having (a) a first rotor region facing said first housing end region with projections for circulating the suspension to be processed, said first rotor region being surrounded by an annular housing wall section with a bottom zone having an outlet opening, said projections centrifuging impurity particles having at least a predetermined specific weight against said annular housing wall section; (b) a last rotor region facing said second housing end region with projections disposed at a periphery of the last rotor region for circulating said rejected suspension portion in an annular chamber between the last rotor region and a portion of said screen surrounding said last rotor region for draining the rejected suspension portion; and (c) an intermediate rotor region for sorting the fibrous suspension and for deflaking and disintegration of fiber agglomerations contained in the fibrous suspension to be processed, said intermediate rotor region having projections disposed at a periphery of the intermediate rotor region for effecting deflaking and disintegration of fibre agglomerations and being surrounded by a portion of said screen which has an inlet side facing said intermediate rotor region and an outlet side which is in communication with said accepted material outlet.