Pyrolysis of tires is a process that decomposes waste tires into reusable resources through pyrolysis technology. The primary products of the pyrolysis process include pyrolysis oil, carbon black, and combustible gas. The specific proportions vary depending on the pyrolysis conditions (such as temperature, time, and catalyst usage) and the composition of the tires. Typically, pyrolysis of waste tires yields approximately 40% – 60% pyrolysis oil, 30% – 40% pyrolysis carbon black, and 10% – 20% combustible gas.
The specific fineness required for pyrolyzed carbon black depends on its final use. The fineness of carbon black affects its surface area, dispersibility, and reinforcing properties, which vary according to different applications. Here are some common applications and their requirements for carbon black fineness:
Requirement: Fineness usually ranges between 200 mesh and 400 mesh, equivalent to a particle size of 75 µm to 38 µm.
Reason: This fineness allows the carbon black to disperse well within the rubber matrix, providing good reinforcement, improving abrasion resistance, and enhancing aging resistance.
Available equipment: MTW European Trapezium Mill, LM Vertical Mill, MRN Pendulum Roller Mill
Requirement: Fineness generally ranges between 325 mesh and 600 mesh, equivalent to a particle size of 45 µm to 25 µm.
Reason: This fineness of carbon black used in plastics can enhance the UV resistance and durability of plastic products, while also providing some coloring effects.
Available equipment: LM Vertical Mill, LUM Ultrafine Vertical Mill
Requirement: Fineness typically ranges between 800 mesh and 2000 mesh, equivalent to a particle size of 20 µm to 7.5 µm.
Reason: This high fineness of carbon black offers excellent coloring power and dispersibility, ensuring uniformity and stability in paints and inks, providing a deep black color and high contrast.
Available equipment: LUM Ultrafine Vertical Mill, SCM Ultrafine Mill
Requirement: Fineness is usually very high, possibly reaching 2000 mesh or higher, equivalent to a particle size below 10 µm, even down to the nanometer scale.
Reason: Ultrafine carbon black particles provide good conductivity, widely used in manufacturing conductive adhesives, conductive plastics, and electronic devices.
Available equipment: SCM Ultrafine Mill
Requirement: Fineness requirements are relatively low, possibly ranging between 60 mesh and 200 mesh, equivalent to a particle size of 250 µm to 75 µm.
Reason: These applications do not have high demands on the physical and chemical properties of carbon black, focusing more on cost-effectiveness and ease of large-scale use.
Available equipment: MTW European Trapezium Mill, LM Vertical Mill, MRN Pendulum Roller Mill
Based on the absorption of advanced technologies of famous international corporations and 30 years’ experience in grinding mill production, SBM has launched the LM Vertical Grinding Mill which integrates five functions of crushing, grinding, powder selection, drying and material conveying. It is characterized by centralized technological process, small occupational area, low investment, high efficiency, energy conservation and environment protection.
LUM Ultrafine Vertical Grinding Mill is independently designed by SBM on the basis of years of experience in grinding mill production. LUM grinding mill adopts the latest Taiwan grinding roller technology and German powder separating technology. The ultrafine vertical grinding mill integrating ultrafine powder grinding, grading and transporting has become a better choice in the ultrafine powder grinding industry.
MTW European Grinding Mill is innovatively designed through deep research on grinding mills and development experience. It absorbs the latest European powder grinding technology and concept, and combines the suggestions of 9158 customers on grinding mills. This grinding mill perfectly satisfies the production demands of the customers on 200-33μm (80-425Mesh) fine powder.
SCM Ultrafine Grinding Mill is a new superfine powder (325-2500 mesh) production equipment developed through accumulating years of experience in grinding mill production, absorbing Swedish advanced machine manufacturing technology, and undergoing many years of tests and improvements. The SCM Ultrafine Grinding Mill is the result of combination of advanced Chinese and Swedish technologies. Meanwhile, it symbolizes the new development and new science in the grinding world.
