The principle of operation of the flash dryer system. The fish wastes are poured into the bunker slurry (1). After that, they are carried into the drying system with a double helix (2). They are taken into the dehydrator for drying of the product (3 and 4). Hot air intake is provided into the system with the help of a burner (5). Decomposition of the dried product and its being dropped is ensured (6). The entrance of air into the system from outside is prevented and the drying efficiency shall be brought to an upper level (7). The hot air that is dormant in the system is taken into circulation again and the moist air is thrown out (8, 9, and 10). Finally, carrying the dried product to the desired point is ensured (11).