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Due to their relatively low bulk density, unfavourable buoyancy, critical consistence or static electricity, light-weight filling materials such as film flakes easily tend to bridge when being discharged. The KREYENBORG special film flake silo avoids this unwanted effect of bridging. The silo mainly consists of a cylindrical storage bin, interior cone segments, three agitating screws and the discharge device under the cone. The three agitators bring motion into the stored material and thus prevent bridging.
After a while, the agitators‘ movement provokes the homogenisation of film flakes of variable thickness rates and thus creates a uniform bulk density. Their constructional shape is determined according to the properties of the plastic materials to be stored and discharged and they are designed to cope with quite a variety of different materials. The screws are driven by geared motors installed beneath the storage bin.
The KREYENBORG special fibre silo is primarily designed to store extremely light and quickly bridging fibre materials. It is even suitable for fibres having a bulk density far below 0.1 kg/dm3. Furthermore, it is also suitable for very light and bridging fluffs and powder. The silo essentially consists of a cylindrical or slightly conical storage bin, an agitating shaft fitted with a stirring arm and a discharge screw.
The shape of the storage bin favours the material‘s sinking even if its bulk density is very low. With each revolution the stirring arm mounted at the bottom of the agitation shaft pushes the product over the open section above the discharge screw. Thanks to the slow motion of the stirring arm the dropping fibres are discharged effectively and continuously.
For the storage and the dosed discharge of ground materials, such as film flakes, fibres, foams etc.
KREYENBORG offer their special block-type silo. The special block-type silo is a two-piece equipment. It consists of the rectangular storage bin placed at the top of the funnel-shaped substructure. The bottom of this substructure contains a twin discharge screw and stepped loosening elements that prevent the material from bridging.
The discharge hopper extends over the complete silo length and thus covers the entire bottom of the storage bin. By its constructional shape the storage bin makes the material sink smoothly without any obstructions and it excludes dead spots where material could deposit.