Fecha de publicación: 30/10/2020 Fuente: WIPO "circular economy" The utility model discloses a multifunctional cooking device for softening wheat straw fibers. Cooking pot, a low-temperature pipe, a medium-temperature pipe and a high-temperature pipe are respectively arranged at the upper part, the middle part and the lower part in the cooking pot; the outer ends of the low-temperature pipe, the medium-temperature pipe and the high-temperature pipe are connected to a water outlet pipe, the water outlet pipe is connected with a hot water outlet of a boiler, a steam outlet of the boiler is connected with an annular pipe, a drain pipe is arranged at the innerbottom of the cooking pot, penetrates through the side wall of the cooking pot and is connected with a return pipe, and the return pipe is connected to the boiler; simple structure, reasonable design,novel and unique thought, feeding the cleaned and dehydrated wheat straws into a cooking pot, and respectively adding hot water with the same temperature into the wheat straws at different positionsin the cooking pot through a low-temperature pipe, a medium-temperature pipe and a high-temperature pipe; the wheat straw fibers in the tank are preheated, the water temperatures of all positions in the tank are consistent, then medium-high pressure steam is introduced from the bottom of the tank to conduct heat to the outside, the wheat straw fibers in the tank are softened in a static state, andno chemical agent is added.