Instantaneous sterilization device for edible mushroom cultivation base material and application

The invention provides an instant sterilization device for an edible mushroom cultivation base material. The instantaneous sterilization device comprises a flow channel and a screw rod, wherein the screw rod is arranged in the flow channel in a penetrating manner; spiral pieces and extrusion pieces are arranged on the periphery of the screw rod, the spiral pieces are arranged in a segmented mode, and the extrusion pieces are arranged between the adjacent spiral pieces and are close to an outlet of the flow channel; and the flow area of the extrusion piece is smaller than that of the spiral piece. The extrusion pieces are additionally arranged on the screw rod with the spiral pieces, the extrusion pieces are arranged between the segmented spiral pieces, materials in a flow channel are extruded, the phenomena of blocking, spraying explosion and the like are avoided, meanwhile, large frictional resistance is provided for heat generation when the materials pass through, and it is guaranteed that needed high tempe