Rotating-screw drying reactor

A screw conveyor drying reactor, wherein the screw conveyor drying reactor has at least a first screw conveyor housing and at least one outer vacuum housing that at least partially surrounds the first screw conveyor housing,

• wherein the first screw conveyor housing has at least one housing wall, wherein the housing wall has at least one gas- and liquid-permeable but solid-impermeable wall section, wherein the vacuum housing is arranged at least below the gas- and liquid-permeable but solid-impermeable wall section and receives gas and liquid passing through the permeable wall section,
• wherein a conveying screw extends into the first screw conveyor housing and is mounted at least at one end of the first screw conveyor housing, wherein the conveying screw is connected to a drive motor to form a continuous rotary connection,
• wherein the first screw conveyor housing has at least one inlet port for a fluid-comprising material, and at least one outlet opening for removal of particles from which fluid has been extracted,
• wherein the conveying screw extends into the first screw conveyor housing in such a way that the material is transported from the inlet port to the outlet opening, and wherein the conveying screw has screw flights,
• wherein the vacuum housing is sealed off with respect to the first screw conveyor housing for the purpose of applying a vacuum,
• wherein the vacuum housing has at least one connection port for applying a vacuum and for discharging fluid which penetrates into the vacuum housing through the gas- and liquid-permeable wall section of the screw conveyor housing,
• wherein the first screw conveyor housing additionally has at least one washing solution port for introducing a washing solution into the first screw conveyor housing for washing the material.