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Graphene production equipment

Graphene production equipment

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Technical parameters
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Graphene production equipmentOverview of graphene production equipment

At present, the preparation methods of graphene are mainly mechanical method, oxidation method, substrate growth method and liquid phase method. Most of these production techniques and methods have shortcomings such as low yield, high energy consumption, and poor quality, and thus are also limited. Production and development of domestic graphene. Nantong Fleck Graphene Production Research Group has made unremitting efforts to invent a graphene which is continuously dispersed in the liquid phase and continuously stripped graphite sheets by high-speed dispersion, crushing and grinding, vortex cavitation and shearing ultrasonic. The production line has realized the production of high-quality graphene by mechanical shearing fluid cavitation and other technical means, which is favored by the majority of graphene producers.

The graphene production equipment is a high-tech advanced equipment for high-quality graphene such as single layer and multi-layer produced by mechanical hydraulic shearing and cavitation stripping of graphite sheets. The invention and application of this advanced technology have accelerated the pace of graphene production to a certain extent, and also promoted the confidence of graphene production enterprises in large-scale, high-efficiency, low-cost, pollution-free production. Moreover, the production process of the mechanical hydraulic shearing and cavitation vortex stripping graphite sheet has the characteristics of simple operation, safety and reliability, no oxidation, no high temperature, high quality and high quality, and is very suitable for mass production of high quality graphene.

Graphene production equipment process

Graphene production process: Firstly, the high-shear dispersion stirring batching tank is equipped with graphite powder, dispersant or surface modifier and water to disperse and stir, first close the circulation valve and then open the storage tank and the dispersion grinding pump connection valve. The graphite solution is passed through a fine dispersion mill, a hydraulic shear vortex cavitation, and then a pressure into a high shear cyclone ultrasonic hopper. When the batching tank is empty, the lower connecting valve is automatically closed and the circulation valve is opened to allow the graphite solution to continuously unravel from the circulation to make the graphene single layer multi-layered to the desired effect, and the pressure control, time control and temperature control are designed in the integrated control system. You can also use computer control or touch frequency control or fully automatic control.

Corresponding parameter set not found, please add it in property template of background

Graphene production equipment works

Working principle of graphene production equipment: Firstly, graphite powder, dispersant or surface modifier and water are added to the high-speed dispersing and stirring storage tank, and then dispersed and stirred by a high-speed disperser to prepare graphite with good dispersion stability. The solution enters the finely dispersed grinding chamber from the pipeline through a special pulverizing cutting and stripping device, and rapidly disperses and shears the particles of the powder mass, the sticky mass, the agglomerates and the like in the graphite solution, and then inhales the shear pulverized delamination zone, In the very narrow working aisle, the rotor blade and the stator blade are relatively high-speed cut to generate strong friction and grinding and cutting. Under the action of mechanical motion and centrifugal force, the stripped graphite is pressed into the cutting and stripping zone for grinding and crushing. The fine grinding distinguishes three grades. The more outwardly, the higher the precision of the first-stage grinding disc, the smaller the pitch, the higher the linear velocity. Long, the more the graphite sheet is peeled off, and the fluid gradually curves toward the radial direction. The direction velocity of each fluid changes instantaneously, and is subjected to tens of millions of high-speed shears per minute, strong friction, extrusion grinding, particle pulverization, etc., in tens of millions of high speeds passing through three refining zones. After shearing, grinding and pulverization, graphite strand molecular chain breakage, sheet cutting tearing, and the like are produced. Then through the high pressure pipe into the hydraulic vortex shear cavitation generator; hydraulic vortex shear cavitation technology is a process in which the graphite solution flows into the vortex low pressure region to form vapor vacuoles, when the internal pressure of the graphite solution is reduced to saturated vapor When the pressure is below, the bubbles formed by the hydraulic shear cavitation process begin to appear and grow, and as time passes, the bubbles expand, grow, compress and collapse. But this process is explosive. In less than a minute and a half, the bubble can release huge energy at the moment of rapid collapse, and instantaneous local high temperature (1900-5000K) and high pressure (140Mpa-170Mpa) are generated, and the speed is about It is a 110m/s, powerful impact micro-jet, which causes a series of phenomena such as cavitation, air noise, vibration and luminescence. Usually these effects caused by cavitation are called hydraulic vortex shear cavitation effects. The graphite sheet layer peels off the single layer and the multilayer graphene. Then, the new hydraulic shear cavitation cyclone ultrasonic generator is re-entered through the pipeline, so that the graphite solution is subjected to high-speed jet shear shock and swirling cavitation ultrasonic wave, and the graphite layer is not subjected to cyclic cutting and stripping. High-quality single-layer and multi-layer graphene enters the storage tank, and then enters the fine disperser and the hydraulic vortex cavitation device through the condenser return line. The entire cutting and stripping process of the graphene solution is in a closed pipeline. Reciprocating high-speed impact cutting, hydraulic shear vortex cavitation, swirling ultrasonic cavitation and other effects under strong effects of cutting and uninterrupted peeling, thereby achieving higher quality single-layer and multi-layer graphene; The hydrodynamic cavitation stripping graphene process can strongly promote and promote the large-scale, high-efficiency, low-cost, pollution-free production of graphene.

Main structure of graphene production equipment

Main structure of graphene production equipment: high shear dispersion mixing batching tank, fine dispersion grinding machine, hydraulic vortex cavitation, high shear swirling ultrasonic machine, multi-pipe condenser, ultrasonic storage tank, integrated control system , pressure gauge temperature controller and other components.

Accessories: Equipment selection parameters and technical requirements (downloadable)

 First, the technical parameters of your company's materials:
Material medium   Processing capacity(m³/h)  
Liquid category Water-based, Oily, Solvent Solid category Agglomerate, Crystals, Primary particle
Liquid to solid ratio(%)        Viscosity    Pa.s   Material flow Very good (water), 可以, difference, Very poor
Feed contains Large particles   mm,Take up    % Medium particle   mm,Take up     % Small particles   mm,Take up      %
Solid particles (fragile, Not fragile, Viscous) Discharge granule    μm Head    m temperature    
 Second, your company's requirements for equipment:
 1. Material contact part material stainless steel 304, stainless steel 316L, Duplex steel 2205, TA2, HastelloyC276
 2, rotating stator material stainless steel 304, stainless steel 316L, Duplex steel 2205, TA2, Hastelloy C276,
Wear-resistant steel NM500, Wear-resistant steel 38CrMoAl, Tungsten carbide treatment, Emery treatment
 3, sealed Ordinary single-sided mechanical seal, Ordinary double-sided mechanical seal, Custom double-sided mechanical seal
O-ring configuration Ding O-ring, Fluoro rubber O-ring, Fluorine-containing O-ring, Perfluoroether O-ring
Material contact surface Tungsten carbide-silicon carbide, Tungsten carbide-tungsten carbide, Silicon carbide-silicon carbide
 4, the motor Ordinary motor, Inverter motor, Ordinary explosion-proof motor, Explosion-proof inverter motor, Dust explosion-proof motor
Class 2 energy efficient motor, Marine motor, Waterproof motor Self-contained control box With control box
 Third, the corresponding device model:
Full name of the equipment Model Processing capacitym³/h) Motor Power(kw) Amount Remarks

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