Patent ID: 8561314

Claim:
An installation for drying organic matter comprising: (a) a vacuum mixer having at least one mixing blade in a housing and having a closable filling opening for introducing organic matter and a closable emptying opening on the underside or laterally toward the underside for the dried matter, (b) at least one vacuum pump, connected to at least one extraction connector fitted in the housing of the mixer above a maximum filling height, in order to extract the air in the mixer to produce the vacuum, (c) a heating device for heating the organic matter, (d) at least one condenser, connected to the waste air line of the vacuum pump, and having a cooling unit connected thereto for condensing the extracted air, and (e) a drain line for the condensate obtained from the waste air by cooling in the condenser, wherein the mixer has an elongated housing which, in the event of horizontal arrangement of its longitudinal axis, is formed in its lower region as a trough shaped like a circular segment and, at its two ends, in each case has an end wall and side walls extending upward, which at the top delimit the filling opening, which can be closed off in an airtight manner by a cover or a hood, wherein at least one emptying opening is provided in the housing in the lower region of the trough, wherein at least one outer and at least one inner mixing blade are arranged in the housing, are mounted on a common axis on at least one end wall and can be driven separately or in a coupled fashion, the outer mixing blade conveying the material to be mixed in a specific longitudinal direction of the housing, and the inner mixing blade conveying the material to be mixed in the same or opposite longitudinal direction as the outer mixing blade, and wherein the outer mixing blade is at least partly hollow, and in that the heating device is inserted into the hollow or a heat exchange medium can be led into and out of the hollow via a lateral distributor having a central pipe connection, the inner mixing blade being continuous or being replaced by at least one rotating impact knife, the impact knives being fixed to a shaft.