HomeMy WebLinkAbout03. (Handout) CORSolutions organic recycling proposal for Central San Buffer Land Item 3.
(Committee Handout)
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Cryogenic Grinding. Fine-Particle Pulverization with
Nitrogen or Carbon Dioxide.
Plastic,elastic,and heat-sensitive materials have properties that make fine grinding quite difficult,which can
create additional process and performance difficulties.With cryogenic size reduction,Linde offers a process
which economically pulverizes many different materials with low-temperature gases.This process can provide
benefits such as reduced energy costs and increased production rates.
Cryogenic gases provide flexibility across a wide range of grinding temperatures.For example,carbon dioxide is
traditionally used for cooling in the spice industry. The process usually utilizes fine impact mills,although other
types of milling systems can also be applied.
Linde has decades of experience in the application of cryogenic grinding in customers'facilities. This expertise
includes the selection, implementation,and optimization of suitable cryogenic grinding processes.
Advantages Increased productivity through optimized particle-size and increased throughput
Elimination of caking product within the mill
Decreased wear on grinding equipment
Improved pouring properties due to finely ground material
Increased protection from fire and product oxidation due to inert milling atmosphere
Separation of composite materials within the mill
Numerous application Fine-particle size reduction for thermoplastics and elastomers
possibilities The aroma from spices as well as heat-sensitive fats are preserved by utilizing low-temperature gases,which
mitigate the effects from heat degradation
Oxidizable materials,e.g.fine metal powder,are best protected in an inert gas atmosphere
The treatment of production residues guarantees high product quality as well as the separation of individual
components by recycling the composite
Linde offers a full service Consultation on technical application
y Experimentation and testing within laboratory and production mills
y Adaptation of present grinding systems for use in controlled temperature grinding
Profitability analysis
Applications for cryogenic grinding include rubber, plastic,metal,composites,spices,pharmaceuticals:waxes,
or other materials.
Item 3.
(Committee Handout)
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