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Equipment for producing graphene by utilizing spray drying and microwaves

A graphene and microwave technology, applied in the field of graphene new material preparation, can solve the problems of cumbersome process of drying graphite oxide, difficult to collect, high energy consumption, and achieve the effects of convenient operation, simple equipment structure, and improved product yield.

Inactive Publication Date: 2015-05-06
江苏江大环保科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the material added by ordinary microwave irradiation heating must be powder, and the process of drying graphite oxide is cumbersome and consumes a lot of energy.
Moreover, the graphene obtained by microwave irradiation is very bulky (up to 100L / g), and its mass is easy to fly, making it difficult to collect.
These problems have become obstacles to the industrial production of graphene by microwave irradiation

Method used

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  • Equipment for producing graphene by utilizing spray drying and microwaves

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:

[0016] As shown in the figure, a device for producing graphene by spray drying and microwave, including atomizer 1, drying chamber 2, microwave cavity 3, observation port 4, cyclone collector 5, wind-closing unloader 6 and exhaust Tube 7. The atomizer 1 is installed on the top of the inner cavity of the drying chamber 2, and the bottom of the drying chamber 2 is connected to the head of the cyclone collector 5 through a connecting pipe 8; the drying chamber 2 is arranged in the microwave cavity 3, and the A plurality of microwave emitters are arranged on two opposite inner walls in the microwave cavity 3, the microwave cavity 3 and the connecting pipe 8 are made of stainless steel and lined with polytetrafluoroethylene, the atomizer 1 and the drying The material of the chamber 2 is quartz, corundum or ceramics; the top of the cy...

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Abstract

The invention relates to equipment for producing graphene by utilizing spray drying and microwaves. The equipment comprises a microwave oven cavity, a spray drying device, a cyclone collector, an air-lock discharger and an exhaust pipe, wherein the spray drying device is arranged in the microwave oven cavity and comprises an atomizer and a drying chamber; the atomizer is arranged at the upper part of the drying chamber; the cyclone collector is connected with the drying chamber through a connecting pipe; the air-lock discharger is arranged at the bottom of the cyclone collector; and the exhaust pipe is arranged at the top of the cyclone collector.

Description

technical field [0001] The invention relates to the technical field of graphene new material preparation, in particular to a device and process for industrially producing graphene by spray drying and microwave radiation. Background technique [0002] Graphene is a layer of carbon atoms with a thickness of one atom, and carbon atoms are separated by sp 2 The thickness of hybridized carbon atoms is only a single layer of two-dimensional crystals arranged in a hexagonal plane of atoms in a honeycomb crystal lattice. Graphene is the thinnest known material, and it is also very strong and hard; as a single substance, it can transfer electrons faster than all known conductors and semiconductors at room temperature (the migration speed of electrons in graphene reaches the speed of light 1 / 300 of). At the same time, as a single-layer carbon atom structure, the theoretical specific surface area of ​​graphene is as high as 3000m 2 / g. Such a high specific surface area makes graphe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04
Inventor 李在均蔡金飞张明
Owner 江苏江大环保科技开发有限公司