Pulp screen device
AssigneeEur-Control Kalle AB
InventorGosta Ingemarsson
Life of this patent
Estimating the term…
Abstract
A screen device for separating undesirable impurities from a pulp suspension is provided with at least one continuous circular screen slot between a first chamber into which the suspension is conducted and from which undesirable material is removed and a second chamber from which the screen pulp suspension is transported. The slot is formed by two walls which are stationary in relation to each other and a cleaning device such as a doctor or knife bears against the screen slot, the cleaning device and slot being movable in relation to each other for continuous cleaning of the screen slot.
Claims10
A screen device for separating undesirable impurities from a pulp suspension, said device is provided with at least one continuous circular screen slot provided between a first chamber into which suspension to be screened is conducted through an inject-inlet and from which undesirable material is passed away through a reject-outlet, and a second chamber from which screened suspension is forwarded through an accept-outlet, characterized in that the screen slot is formed by two walls stationary in relation to each other and that a cleaning device bears against the screen slot, said cleaning device and slot being movable in relation to each other for continuous cleaning of the screen slot.
A screen device for separating undesirable impurities from a pulp suspension, said device provided with at least one continuous circular screen slot provided between a first chamber into which suspension to be screened is conducted through an inject-inlet and from which undesirable material is passed away through a reject-outlet and a second chamber from which screened suspension is forwarded through an accept-outlet, characterized in that the screen slot is formed by two walls stationary in relation to each other, the screen slot extending radially between the two walls from a shaft adapted to bring the walls into rotation, one of the walls consisting of an outer edge of a first plate fixed to the rotary shaft and the other wall consisting of an outer edge of a second plate also fixed to the shaft and provided with openings for the accept, the second plate having the same diameter as the first plate, and a cleaning device bearing against the screen slot, said cleaning device and slot being movable in relation to each other for continuous cleaning of the screen slot.
Dependencies are inferred from the claim text.