Method and equipment for preparing fertilizer by anaerobic fermentation of agricultural waste organic materials

The invention belongs to the technical field of microbial fermentation, particularly relates to an agricultural waste organic material anaerobic bacteria fermentation fertilizer preparation method and equipment, and provides the following scheme aiming at the problems that the crushing process needs to be independently carried out, and crushed materials cannot reach the preparation standard easily, so that the subsequent mixing effect is poor, and the whole fertilizer preparation process is long in time. The fertilizer preparation method comprises the following steps: adding agricultural waste organic materials into the inner cylinder, adding earthworm slurry into the inner cylinder, uniformly stirring and then heating, preserving heat and fermenting, adding protease, uniformly stirring and then heating, preserving heat and performing enzymolysis. Added agricultural waste organic materials are subjected to secondary grinding and smashing through the material grinding assembly, so that prepared raw material pa