Device and method for preparing fully granular cigarette/filter rod, and prepared fully granular cigarette/filter rod

A device for preparing a fully granular cigarette and filter rod, comprising a mesh conveyor belt-mounted on a bracket, characterized in that a feeding apparatus, a pre-forming apparatus with a pre-forming cavity, a curing apparatus with a forming cavity, and a cooling and drying assembly with a cooling and drying cavity are sequentially disposed on the bracket in a conveying direction of the mesh conveyor belt;

• the mesh conveyor belt comprises an upper conveyor belt and a lower conveyor belt connected into a whole, and the upper conveyor belt passes a feeding port of the feeding apparatus and passes through the pre-forming cavity of the pre-forming apparatus, the forming cavity of the curing apparatus, and the cooling and drying cavity of the cooling and drying assembly;
• a side wall of the pre-forming cavity is provided with a plurality of first through holes for providing negative pressure;
• a side wall of the forming cavity of the curing apparatus is provided with a plurality of second through holes for providing water-containing hot air and/or saturated water vapor;
• a side wall of the cooling and drying cavity of the cooling and drying assembly is provided with a plurality of third through holes for providing negative pressure and discharging excess moisture;
• central positions of the pre-forming cavity, the forming cavity, and the cooling and drying cavity are kept on the same horizontal straight line;
• the pre-forming cavity, the forming cavity, and the cooling and drying cavity have the same cross-sectional shape, the cross-sectional area of a discharge port of the pre-forming cavity is larger than that of the forming cavity, and the cross-sectional area of the forming cavity is larger than that of the cooling and drying cavity.