Graphene powder cyclone screen

Graphene powder cyclone screen is a device commonly used for screening and grading graphene powder. It uses airflow to assist material separation and screening, and is widely used in high-precision grading, clean screening and separation of ultrafine materials. As a nano-scale ultrafine material, graphene often needs to be processed under very fine grading conditions due to its unique physical and chemical properties.

Video of graphene powder cyclone screen

How does the graphene powder cyclone screen work

Graphene powder cyclone screen separates graphene powder by particle size through a combination of high-speed rotating airflow and screen:

① Airflow drive: Graphene powder enters the screening chamber through the feed port, and the airflow blows the graphene powder away and brings it into the rotating area.

② Centrifugal separation: The rotating airflow generates centrifugal force, and larger graphene powder particles are thrown to the outside of the screen. Ultrafine graphene powder smaller than the screen hole passes through the screen and enters the collection device with the airflow.

③ Cyclone collection: Larger particles that do not pass through the screen are captured by the cyclone separator and settle in the collector below.

What are the disadvantages of graphene powder cyclone screen?

1. Sensitive to the humidity of graphene powder: Graphene powder cyclone screen relies on airflow to disperse materials. If the humidity of graphene powder is too high, it is easy to cause the material to adhere to the screen or the inner wall of the equipment, and may even cause equipment blockage.

2. Risk of fine powder loss: Graphene powder cyclone screen relies on airflow to transport materials. Some ultrafine powders may escape in the airflow and are difficult to collect completely, causing material loss, affecting production efficiency and product quality.

3. Relatively limited processing capacity: For large-scale production needs, the processing capacity of a single device may be relatively small. If a large amount of graphene powder needs to be processed, multiple devices need to be operated in parallel.

4. Limited processing particle size range: Graphene powder cyclone screen is suitable for ultrafine powders (<50μm), and the screening efficiency of larger particles (>100μm) or mixed particle size materials is low. It is not suitable for the situation where larger particles are mixed in graphene powder, and a pre-coarse screening device may be required.

Technical parameters of graphene powder cyclone screen

Application fields of graphene powder cyclone screen

1. Graphene production and research: Graphene powder cyclone screen is used to separate and screen graphene powders of different particle sizes to ensure the uniformity of the particle size of each batch of graphene powder.

2. Electronic materials industry: Graphene is widely used in supercapacitors, electronic devices, conductive materials and other fields. Graphene powder cyclone screen can ensure the screening of high-quality graphene powder to meet the needs of high-performance applications.

3. New energy industry: Graphene powder is used in new energy fields such as lithium batteries and hydrogen storage. High-precision screening helps to improve the conductivity and performance of graphene in batteries.

4. Coatings and inks industry: Graphene is a filler and modifier. Graphene powder cyclone screen can be finely graded to ensure the uniformity and stability of coatings or inks.

5. Composite materials industry: Graphene composite materials require uniform particle distribution. Graphene powder cyclone screen can separate graphene powder that does not meet the particle size requirements to ensure the stability and performance of the material.

Precautions for selecting graphene powder cyclone screen

Screen accuracy: Select the appropriate screen aperture to ensure that the particle size requirements of graphene powder can be met.

Airflow adjustment: The airflow velocity of the cyclone screen needs to be adjusted according to the powder characteristics of graphene to ensure the classification effect.

Material selection: Graphene powder has a certain degree of corrosiveness. Corrosion-resistant materials are selected to extend the service life of the equipment.

As a powder processing equipment, the graphene powder cyclone screen has a precise classification ability that is directly related to the value realization of graphene materials in new energy, electronics and other fields, and is an indispensable key link in the industrialization process.