Cryo-grinding

You wish to...

• Enlarge the range of substances to grind?
• Get the requested granulometry?
• Keep the physical and chemical characteristics of products?

Principle:

Low temperatures allow to harden and to weaken substances to grind.

Advantage:

• Preserve physical and chemical characteristics of heat sensitive products
• To grind products of very different nature with an homogeneous particle sizing
• To directly obtain finest powders with minimum power and retraining
• To optimize the treatment capacity of the installation

Air Liquide achieves turnkey installations and liquid nitrogen pre-cooling materials, adapted to different products to be grind.

Today 2 techniques are used for freeze-grinding :

The cryogenic screw:

• Very efficient for in-line treatment of product whose out-flow is difficult
• Fast cooling and a high temperature accuracy
• Excellent output
• Total recovery of residual refrigerates from the grinder

The hopper to pulverization:

• Vertical system designed for in-line treatment of sensitive products to cluster
• Simple and compact design
• Fast cooling and excellent output of refrigeration (recovery of the sensitive heat of cold gases)
• Helical wiper who assures the granules out-flow and the temperature homogenization

Your Industry: Laboratory Quaity Control...

Contact us for more information...