A novel cryogenic grinding system for recycling scrap tire peels

By using a thermal separator and a vortex mill, a cryogenic grinding system was established in which experiments were performed to grind scrap tire peels into fine powders. The new grinding device is more effective than mechanical mills such as the ACM pulverizer. The cryogenic grinding results also...

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Bibliographic Details
Published in:Advanced powder technology : the international journal of the Society of Powder Technology, Japan Japan, 2000-01, Vol.11 (2), p.187-197
Main Authors: Liang, S.B., Hao, Y.C.
Format: Article
Language:English
Subjects:
cryogenic grinding
Cryogenics
Design
Efficiency
Energy consumption
Exergy
exergy efficiency
Fines
Grinding
Grinding mills
Particle shape
Particle size
Powders
Process parameters
Pulverizing
Recycling
Rubber
Scrap
scrap tire peels
Separators
Thermal separator
Tires
vortex mill
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Summary:By using a thermal separator and a vortex mill, a cryogenic grinding system was established in which experiments were performed to grind scrap tire peels into fine powders. The new grinding device is more effective than mechanical mills such as the ACM pulverizer. The cryogenic grinding results also show that rubber products of sizes less than that 50 μm are difficult to attain. Sharp corners and smooth surfaces were visible on the ground rubber particles that have the much better flowability. The optimal feed rate and size of scrap tire peels were investigated. The characteristics of final rubber products and the energy consumption in the grinding process were examined in detail. The exergy efficiency of the cryogenic grinding system is 10.9%.
ISSN:0921-8831
1568-5527
DOI:10.1163/156855200750172303