Fine powdered sand gathering system in dry condition

A triturator to crush or triturate raw material under dried condition, said triturator comprising:

• a drum body including an inlet port to bring in raw material arranged in one end part, and a plurality of outlet ports to discharge processed material after processing arranged in another end part;
• a rotation shaft which pierces the inside of the drum body in the direction of axial length of the drum body;
• at least one partition member attached to the shaft at an inclined angle to divide the inside of the drum body and form a plurality of processing spaces which communicates mutually in the drum body;
• plural loadings in said processing spaces that move up and down repeatedly with rotation of the rotation shaft for processing said raw materials;
• a blower having a plurality of outlets for blowing air into each said processing space to float fine powder caused by said processing;
• and
• an aspirator having a plurality of inlets to suck in fine powder floated from each said processing space by said blower.