Reactor to ferment suspended biological substances has external pump

摘要

In a reactor to ferment biological substances has a container (1) holding the substances as a suspension. The reactor has an inlet (2) and outlets (4, 5) for the fermented reaction products, and means by which the suspension is circulated in an overflow pattern. The container (1) chamber has a number of upright pref. hexagonal shafts (6) submerged within the suspension an located close to the reactor centre and terminating above or below the fluid surface. The reactor (1) has an external displacement pump (10) with a pipe (11) drawing the suspension from the chamber, and an outlet pipe (12, 13) to the base of the shafts (6). The pipe (13) discharge (13) point within the shaft (6) is located below the intake point (11) to the pump (10).