Graphene atmosphere protection continuous reduction furnace

Abstract

The invention relates to a graphene atmosphere protection continuous reduction furnace mainly including an electrical control system, a feeding device, a transmission device, a furnace body heating device, a cooling device and a discharging device; the feeding device comprises a feeding port, a stirrer, a material bin speed reducer, a material bin and a feeding pipe, a pneumatic ball valve is arranged between the material bin and the feeding pipe; the furnace body heating device mainly comprises a heating pipe furnace, an electric heater, heat insulation cotton, a casing and a protecting pipe; the discharging device mainly comprises a discharging pipe, a discharging speed reducer, a dust collector, a discharge port and an exhaust port; the cooling device is a cooling sleeve pipe arranged on the feeding pipe and the discharging pipe; the transmission device is a level spiral rod arranged in the feeding pipe, the heating pipe and the discharging pipe; in the production process, the furnace body of the graphene atmosphere protection continuous reduction furnace may not be cooled, and continuous feeding and continuous discharging can be realized, so that graphene continuous production can be realized, production efficiency is high, energy consumption is low, and the cost of production is saved.

Description

technical field [0001] The invention belongs to the field of preparation equipment, and in particular relates to a graphene atmosphere-protected continuous reduction furnace. Background technique [0002] Graphene (that is, single-layer graphite) is a new carbonaceous material that is tightly packed into a two-dimensional honeycomb lattice structure by a single layer of carbon atoms. Its theoretical thickness is only 0.335 nm, which is the thinnest substance known so far. Graphene is highly conductive, and its internal electron mobility is about ten times faster than conventional silicon materials. Graphene has huge potential application prospects in high-performance nanoelectronic devices (especially high field effect transistors), single-molecule sensors, transparent conductive films, high-strength films, electrode materials for lithium-ion batteries / supercapacitors, and composite materials. . [0003] There are many methods for preparing graphene, such as: mechanical ex...

AI Technical Summary

Problems solved by technology

Mechanical exfoliation can obtain high-quality single-layer graphene, but the efficiency is extremely low and is only suitable for academic research; CVD method can produce large-area graphene, but the production efficiency is low and the cost is high; solvothermal method has low yield; chemical exfoliation method can be mass-produced , the preparation cost is low, but the produced graphene has more defects

[0004] At present, the graphene high-temperature reduction equipment is an intermittent furnace, which has low production efficiency, small production capacity, and high energy consumption. After each batch of graphene is reduced, the furnace cools down for a long time.

The present invention mainly aims at the defects in the preparation of graphene by chemical exfoliation, such as problems such as reduced electrical conductivity, and proposes a new solution

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