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Jet device for continuous preparation of graphene and method thereof

A jet device and graphene technology, applied in graphene, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of high energy consumption, long production cycle, and difficulty in ultrafine jet pulverization, and achieve environmental friendliness, Improved stripping efficiency and less environmental pollution

Active Publication Date: 2017-04-19
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the high energy consumption of ultrafine jet pulverization, the difficulty of pulverizing to micron and nanoscale, the contamination of grinding media, the difficulty of obtaining high-quality and high-purity ultrafine graphene powder, the discontinuous process, and the long production cycle, etc.

Method used

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  • Jet device for continuous preparation of graphene and method thereof
  • Jet device for continuous preparation of graphene and method thereof
  • Jet device for continuous preparation of graphene and method thereof

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Embodiment 1

[0036] like figure 1 As shown, a jet device for continuously preparing graphene in the present invention is characterized in that it includes: a mixing mechanism 10 consisting of a first body 11, a high-mix agitator 12 and a feed connection A arranged on the body And B, discharge connecting pipe C; nozzle crushing mechanism 20, including a second body 21 connected to the first body, a main nozzle 22, 4 uniformly distributed converging nozzles 23 with an angle of 60° to the vertical direction and a high-pressure water jet nozzle 24 arranged at the bottom of the second body to spray inside the second body, an ultrasonic probe 25 is arranged at the bottom of the second body, and a homogenizing valve 26 is arranged at the end of the nozzle crushing mechanism , the gap size of the homogenizing valve is 0.5 mm; the spray drying chamber 30, the acceleration pump 31 is set between the spray drying chamber 30 and the nozzle crushing mechanism 20, and the gas heating nozzle 32 is set in...

Embodiment 2

[0042] like figure 1 As shown, a jet device for continuously preparing graphene in the present invention is characterized in that it includes: a mixing mechanism 10 consisting of a first body 11, a high-mix agitator 12 and a feed connection A arranged on the body And B, discharge connecting pipe C; nozzle crushing mechanism 20, including the second body 21 connected to the first body, the main nozzle 22, 6 uniformly distributed converging nozzles 23 with an angle of 60° to the vertical direction and a high-pressure water jet nozzle 24 arranged at the bottom of the second body to spray inside the second body, an ultrasonic probe 25 is arranged at the bottom of the second body, and a homogenizing valve 26 is arranged at the end of the nozzle crushing mechanism , the gap size of the homogenizing valve is 0.6 mm; the spray drying chamber 30, the acceleration pump 31 is set between the spray drying chamber 30 and the nozzle crushing mechanism 20, and the spray drying chamber is pro...

Embodiment 3

[0048] like figure 1 As shown, a jet device for continuously preparing graphene in the present invention is characterized in that it includes: a mixing mechanism 10 consisting of a first body 11, a high-mix agitator 12 and a feed connection A arranged on the body And B, discharge connecting pipe C; nozzle crushing mechanism 20, including a second body 21 connected to the first body, a main nozzle 22, 8 uniformly distributed converging nozzles 23 with an angle of 70° to the vertical direction and a high-pressure water jet nozzle 24 arranged at the bottom of the second body to spray inside the second body, two ultrasonic probes 25 are arranged at the bottom of the second body, and two homogenizing valves 26 are arranged at the end of the nozzle crushing mechanism , the gap size of the homogenizing valve is 1.0 mm; the spray drying chamber 30, an acceleration pump 31 is set between the spray drying chamber 30 and the nozzle crushing mechanism 20, and the spray drying chamber is p...

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Abstract

The invention provides a jet device for continuous preparation of graphene and a method thereof. The method includes: mixing a graphite raw material with a medium solution, passing the mixture through a main nozzle for accelerated ejection, impacting and stripping the material with high speed air flow ejected by uniformly distributed convergence nozzles so as to obtain a mixed slurry, finally pumping the mixed slurry into a spray drying chamber by a super high pressure pump, conducting drying treatment to obtain a graphene material, and collecting graphene with a collecting mechanism. The method has low energy consumption, improves the graphene stripping efficiency, employs air flow and liquid flow to strip graphite, and does not introduce grinding medium pollution. The stripped material passes through a homogenizing valve with tiny gap at a high speed, and the generated strong shear force and friction force can homogenize and strip the material. Through further shearing and screening by the homogenizing valve, the graphene stripping efficiency is improved, and at the same time liquid is added in the graphite shear process to serve as the medium, the structure of graphene can be well maintained, thus obtaining high quality graphene, and promoting the mass production of graphene.

Description

technical field [0001] The invention relates to the field of nanomaterial preparation, in particular to a jet device and method for continuously preparing graphene. Background technique [0002] In 2004, two scientists from the University of Manchester in the United Kingdom discovered graphene using the method of micromechanical exfoliation, and won the Nobel Prize in Physics in 2010. Graphene is a single atom thick and has sp 2 The flat plate structure of bonded carbon atoms, in theory, has a perfect hexagonal network structure, showing excellent electronic stability, thermal conductivity, optical properties, mechanical properties, etc. Since the discovery of graphene, due to its excellent performance and huge market application prospects, it has triggered a research boom in the fields of physics and material science. At present, the preparation methods of graphene include mechanical exfoliation method, epitaxial growth method, redox method, organic synthesis method, solv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/19
CPCC01B2204/04C01B2204/22C01B2204/32
Inventor 陈庆曾军堂陈兵王镭迪
Owner CHENDU NEW KELI CHEM SCI CO LTD
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