The expanded grain flour production line can use single or compound natural grains as the main raw materials, and adopt twin-screw extrusion and ripening processing technology to produce various nutritious cereal meal substitutes, such as baby rice flour, rice porridge, corn paste, grain cereals, red bean barley flour, yam flour, etc; It can also produce extruded corn flour, extruded rice flour and other food and feed raw ingredients. After extruding, extruding and ripening, this kind of product has strong aroma of grains, easy absorption of nutrients, and low bulk density. As a substitute for meal meal, it has a good mixing effect, and is well mixed and not easy to agglomerate. The production process of the production line is simple, and the whole process from extrusion, ripening, granulation, drying to final grinding is uninterrupted and continuous, without manual operation. The continuous operation time is not less than 72 hours, and there is no waste water or waste material discharged in the whole process; Its main equipment includes mixer (mixing raw materials), twin-screw extruder (extrusion curing), dryer (removing moisture), pulverizer (grinding), etc; All the food contacting parts of the equipment are produced and processed with food grade materials that meet the requirements of food safety production. The whole line is customized. The supporting scheme and workshop layout are customized according to the actual needs of customers. The designed output ranges from 100 kg per hour to thousands of kg, wholeheartedly meeting your production needs.