▎ 摘　　要

NOVELTY - Device comprises a detonation reaction system, an air inlet system and an exhaust system, where the detonation reaction system comprises a detonation chamber (8), whose top and bottom are respectively fixed with an upper end cover (4) and a lower end cover (12), forming a sealed space, the upper end cover is provided with a high-energy igniter (2), the high-energy igniter is connected with the detonation chamber (7). The exhaust pipe is provided with an exhaust valve, the exhaust pipe through the gas path pipeline and the vacuum pump, the waste gas collecting device is connected, the outlet of the vacuum pump is provided with a vacuum valve and the inlet of the waste gas collecting device is provided with a waste gas valve. USE - The device is useful for preparing graphene (claimed). ADVANTAGE - The device: uses the theory of detonation mechanism to obtain controllable detonation waves, can reduces the detonation wave distribution and dispersion in the detonation chamber, improves the energy utilization rate; uses structure of the prepared graphene powder, which is more controllable and is suitable for industrial production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the graphene based on the device, comprising (i) filling the graphite raw material in the filling groove in the detonation chamber, or suspending in the air mode uniformly distributed with detonation chamber; (ii) injecting the gas fuel and oxidant into the detonation chamber; (iii) using high-energy ignition device, detonating the mixed gas of gas fuel and oxidant, forming a detonation wave; (iv) using high pressure and partial heat carried by detonation wave,providing energy greater than the graphite interlayer Van der Waals force; crushing and peeling thegraphite raw material, obtaining the mixture of graphite and graphene; (v) collecting the obtained mixture of graphite and graphene, and sieving. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the device. High-energy igniter (1) Upper end cover (4) Detonation chamber (7) Detonation chamber (8) Lower end cover (12)