The invention discloses a triplet mill with a
screw conveyor. The triplet mill comprises a bottom frame and a material screening box body, wherein the top of the bottom frame is fixedly connected withthe material screening box body, and one side of the material screening box body is provided with a first-stage
grinding mechanism. By arranging the multi-stage
grinding mechanisms, generated bean dregs are conveyed through the
screw conveyor, clear water is added in the conveying process for mixing, the bean dregs mixed with the clear water enter the next stage of
grinding mechanism to be pulped, so that the process that a grinding
machine needs to repeatedly pump and
grind is simplified, the grinding time is saved, and the grinding efficiency is improved; and by arranging a
threaded rod andan adjusting ring and shifting an adjusting knob, the
threaded rod rotates, so that the adjusting ring connected with the
threaded rod in a meshed mode moves up and down and drives a rotary grindingdisc to move along with the threaded rod, then the attaching strength between a fixed grinding disc and the rotary grinding disc is adjusted, control over the
slag granularity is achieved, and the
slurry discharging efficiency and quality are improved.