Patent ID: 8709212
Filing Date: 2014-04-29
Classification: D21C

Abstract:
1. A feed system for a continuous steam phase digester wherein wood chips are continuously fed into a top of the digester and fed out from a bottom of the digester, comprising: the digester having a chips level (CH a first and a second pump connected in parallel to a bottom of a vessel, a chips suspension being pumpable by the first pump and the second pump through a first transfer line and a second transfer line, respectively, the first transfer line extending from the first pump to the top of the digester, the second transfer line extending from the second pump to the top of the digester, the first transfer line being separate from the second transfer line, the first transfer line having no other pump but the first pump connected thereto, the second transfer line having no other pump but the second pump connected thereto, and the first transfer line having a first outlet defined therein, the second transfer line having a second outlet defined therein, the first and second outlets opening directly down into a steam-phase of the digester so that the chips suspensions fall directly into the steam phase of the digester without passing through a top separator.