Device for sifting granular material
AssigneeMaschinenfabrik Koeppern GmbH & Co. KG
InventorsHarald Guenter, Thomas Hanstein, Eberhard Neumann, Eggert De Weldige
Life of this patent
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Abstract
An apparatus for separating granular material into at least three fractions a static cross-flow sifter and a dynamic sifter. The static has several impact and flow-conducting elements stepped one below the other in a housing having a first material inlet, at least one sifting-gas inlet and at least one coarse-particle outlet. The dynamic sifter has a rod basket rotatable about a vertical axis, a housing containing the basket, and at least one medium-particle outlet and one fine-particle outlet. The housing of the static sifter merges directly horizontally and laterally into the housing of the dynamic sifter.
Claims22
An apparatus for separating granular material into at least three fractions and comprising:
- at least one static cross-flow sifter having several impact and flow-conducting elements stepped one below the other in a housing having a first material inlet, at least one sifting-gas inlet and at least one coarse-particle outlet, and
- a dynamic sifter having a rotary rod basket and a housing containing the basket and having at iz least one medium-particle outlet and one fine-particle outlet, the housing of the static sifter merging directly horizontally and laterally into the housing of the dynamic sifter, the rod basket of the dynamic sifter being rotatable about a vertical axis.
An apparatus for separating granular material into at least three fractions and comprising:
- at least one static cross-flow sifter having
- a housing having a first material inlet and a sifting-gas inlet,
- several impact and flow-conducting elements stepped one below the other in the housing below the inlets, and
- a downwardly opening coarse-particle outlet below the elements;
- and a dynamic sifter having
- an upper housing part having a fine-particle outlet,
- a rotary rod basket rotatable about a vertical axis and contained in the upper housing part, and
- a lower housing part underneath the upper housing part and having a downwardly opening medium-particle outlet, the housing of the static sifter being level with and merging in a spiral or tangential manner and directly laterally into the lower housing part.
Dependencies are inferred from the claim text.