A drying apparatus of porous material includes a reduced-pressure fermentation dryer configured to: store porous material containing water in an airtight container; heat and stir the porous material under reduced pressure so that a temperature of the porous material is within a predetermined temperature range; feed microorganisms into the airtight container so that the microorganisms enter pores of the porous material; and evaporate the water contained in the porous material by fermentation heat by the microorganisms so as to dry the porous material.

A drying apparatus of porous material includes a reduced-pressure fermentation dryer configured to: store porous material containing water in an airtight container; heat and stir the porous material under reduced pressure so that a temperature of the porous material is within a predetermined temperature range; feed microorganisms into the airtight container so that the microorganisms enter pores of the porous material; and evaporate the water contained in the porous material by fermentation heat by the microorganisms so as to dry the porous material.

The present invention relates to a livestock excrement sterilizing and drying system comprising including: a grinder for pulverizing livestock excrement so as to increase the drying efficiency for the livestock excrement; a transfer unit for transferring the pulverized livestock excrement; a drying chamber which dries the livestock excrement while rotating in a state where the livestock excrement transferred by the transfer unit is inserted therein; a combustion unit for allowing a combustion gas of a combustion device to be supplied into the drying chamber in order to dry the livestock excrement inserted into the drying chamber; a dried excrement discharge unit for discharging the livestock excrement which has been dried by the combustion gas of the combustion device and has a reduced volume; and an exhaust gas processing unit for filtering an exhaust gas generated in the process of drying the livestock excrement so as to discharge the exhaust gas to the air, wherein the livestock excrement dried in the drying chamber is not burned during heat-exchange with the combustion gas, but only moisture thereof is reduced and microorganisms and odors thereof are removed.

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.

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.

The vacuum dryer includes: a first half chamber having a first opening, and a drying table on which a workpiece is fixed and positioned at a drying phase; a second half chamber having a second opening and coupled with the first half chamber to form a hermetic chamber; a first moving device that moves the second half chamber relative to the first half chamber between a separated position and a coupled position; a first volume adjusting body disposed in the second half chamber and having a shape that does not collide with the workpiece and the drying table when the drying table is positioned at the drying phase and the second half chamber is located at the coupled position; and a vacuum pump.

The vacuum dryer includes: a first half chamber having a first opening, and a drying table on which a workpiece is fixed and positioned at a drying phase; a second half chamber having a second opening and coupled with the first half chamber to form a hermetic chamber; a first moving device that moves the second half chamber relative to the first half chamber between a separated position and a coupled position; a first volume adjusting body disposed in the second half chamber and having a shape that does not collide with the workpiece and the drying table when the drying table is positioned at the drying phase and the second half chamber is located at the coupled position; and a vacuum pump.

The present invention relates to a processing system (0) intended to dehydrate food waste (4) comprising at least one device (200) for storing and heating food waste (4) comprising at least one device for stirring the food waste (4), a direct contact heat exchange condenser (34) comprising an opening (37) for extracting incondensable gases from the condenser (34), a first pipe (3) allowing direct communication between the storage device (200) and the condenser (34) to allow the passage of gaseous effluents (22) particularly comprising steam, produced by the heating of said food waste (4) in the waste storage and heating device (200), to the direct contact heat exchange condenser (34), where the steam condenses in contact with a shower of the coolant liquid. The recycling of heat between the condenser (34) and the device (200) for storing and heating food waste is provided by a heat pump (6).

The present invention relates to a processing system (0) intended to dehydrate food waste (4) comprising at least one device (200) for storing and heating food waste (4) comprising at least one device for stirring the food waste (4), a direct contact heat exchange condenser (34) comprising an opening (37) for extracting incondensable gases from the condenser (34), a first pipe (3) allowing direct communication between the storage device (200) and the condenser (34) to allow the passage of gaseous effluents (22) particularly comprising steam, produced by the heating of said food waste (4) in the waste storage and heating device (200), to the direct contact heat exchange condenser (34), where the steam condenses in contact with a shower of the coolant liquid. The recycling of heat between the condenser (34) and the device (200) for storing and heating food waste is provided by a heat pump (6).

A wind permeation-type dryer capable of scraping material has a cavity and includes a heating assembly. The experiment cavity and a dropping cavity; the experiment cavity is located above the dropping cavity. The heating assembly communicates with the experiment cavity or the dropping cavity. The cavity is provided with a sieve tray assembly therein for placing materials. The assembly is provided with a rotating scraping assembly provided thereabove for scraping and flattening the materials on the sieve tray assembly. The rotating scraping assembly includes a rotating drive piece, a scraping sheet, and a rotating rod, wherein one end of the rotating rod is connected to the rotating drive piece and the other end of the rotating rod is connected to the scraping sheet adjacent to the sieve tray assembly. The rotating drive piece drives the rotating rod to rotate so as to drive the scraping sheet to rotate together therewith, such that the materials contacting the scraping sheet is scraped and flattened. The device has an automatic sample flattening function, ensuring the uniformity of sample drying and increasing a working efficiency.