▎ 摘　　要

NOVELTY - Novel graphene composite material comprises 100 pts. wt. graphene, 1-3 pts. wt. calcium oxide, 0.5-2 pts. wt. manganese, 1-2 pts. wt. chromium and 1-2 pts. wt. silicon. USE - The novel graphene composite material is useful in preparation of high-strength structure material, catalyst, sensor and energy device, and also useful in electronic device, optical device, thermal device and mechanical device. ADVANTAGE - The material realizes sieving work of the mixed powder, improves fine degree of mixed powder, reduces damage to the stirring device, improves preparation quality of the graphene composite material, blocks particle with large volume by screen plate, and discharges small volume and light weight particle from feed opening. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation method of novel graphene composite material using sieving device comprising a box body (1), a feeding port (2), a feed opening (3), a waste material opening (4) and a fan box (6). DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of sieving device. Box body (1) Feeding port (2) Feed opening (3) Waste material opening (4) Fan box (6)