Method for drying preferably biogenic residues, and bioreactor for carrying out the method
AssigneeMutec Markgraf GmbH
InventorsUdo COMES, Karl MARKGRAF
Life of this patent
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Abstract
The invention relates to a method and a bioreactor for drying biogenic residues to a dry mass comprising filling the residues into a bioreactor filled with spheres and mixing the spheres and the residues so that films of the residues form on the surfaces of the spheres, drying the films of residues with the formation of crusts of dry mass with a residual water content on the surfaces of the spheres by feeding a drying medium into the bioreactor, grinding and further drying the dry mass by mixing and grinding off powdery dry mass from the spheres.
Claims18
A method for drying biogenic residues to a dry mass, comprising the following steps:
- a) filling the residues (4) having a liquid content into a bioreactor (0) filled with spheres (3) and having a mixer (2), and mixing the spheres (3) and the residues (4) by operating the mixer (2) at least intermittently during the filling and/or after the filling, so that films of the residues (4) form on the surfaces of the spheres (3),
- b) drying the films of residues (4) with the formation of crusts of dry mass (4.1) with a residual water content on the surfaces of the spheres (3) by feeding a drying medium into the bioreactor (0), which flows around the spheres (3), with at least temporary operation of the mixer (2),
- c) grinding and further drying the dry mass (4.1) by operating the mixer (2) at least intermittently while grinding off powdery dry mass (4.2) from the spheres (3),
- d) discharging the powdery dry mass (4.2) from the bioreactor (0).
Dependencies are inferred from the claim text.