Apparatus for producing feeds comprising dried and fermented animal and plant residues and dried and fermented fertilizers

An apparatus for producing feeds/fertilizers containing dried and fermented animal and plant residues, the apparatus comprising:

• a fermentation tank having an inlet for animal and plant residues, a circulation inlet provided in an upper part thereof, a circulation outlet provided in a bottom part thereof, and a discharge outlet provided in the upper part thereof;
• an unobstructed circulation duct connected at an upper end thereof with the circulation inlet and at a lower end thereof with the circulation outlet of the fermentation tank at a connection point spaced from the circulation outlet;
• a screw conveyor located beneath the circulation outlet of the fermentation tank for transferring residues from the circulation outlet of the fermentation tank to the connection point of the circulation duct with the circulation outlet;
• a blower located at the lower end of the circulation duct behind the connection point of the circulation duct with the circulation outlet of the fermentation tank and directly connected with the circulation duct for supplying air for advancing the residues up in the circulation duct with a generated air stream and for providing fermentation oxygen, the generated air stream being a sole source for advancing the residue up the circulation duct;
• a product reception tank having an air inlet for receiving dried fermented residues, an air discharge outlet, both the inlet and the air discharge outlet being located in an upper part of the product reception tank and a discharge outlet for discharging the dried and fermented residue;
• and
• a discharge duct connecting the inlet of the product reception tank with the discharge outlet of the fermentation tank, the fermented and dried residues being transmitted from the fermentation tank to the product reception tank with discharge air flowing through the discharge duct.