This installation is based on the principle of drying in a continuous process in a rotary dryer, with direct passage of the combustion gases inside. These gases are forced by the draft fan and thus proceed to the drying of the raw material. The solid fuel burner supplies the necessary combustion for the drying process. The growing interest in the use of plant residues (wood chips, sawdust, pomace, pine husks, cork cuttings, rice and almond husks, coal, etc.) led us to build burners for various productions, which could be used for any fuel. properly granulated solid.