AN APPARATUS FOR DISCHARGING PULP FROM A VESSEL, METHOD OF DISCHARGING PULP FORM A VESSEL AND METHOD OF UPGRADING A PULP VESSEL

摘要

Invention relates to an apparatus for discharging pulp from a vessel (10) comprising a first section (14) for pulp at a second consistency and a second section (12) for pulp at a first consistency, in which vessel the pulp is arranged to flow from the second section (12) to the first section (14), the first section is provided with means for diluting (22, 24) the consistency of the pulp in the first section tohave a second consistency lower than the first consistency, the apparatus further comprising means for discharging pulp having a first discharge conduit (26) arranged to discharge pulp from the first section (14) of the vessel and being provided with a first outlet (32), and a second discharge conduit (34) arranged to discharge pulp from the second section (12) of the vessel (10) and being provided with a second outlet (40). The first outlet (32) is in flow connection with the second discharge conduit (34) up-stream the second outlet (40), so that pulp flowing at the second outlet has a third consistency between the first and the second consistency. The invention also relates to method of discharging pulp from a vessel and to method of upgrading an existing pulp vessel.