| 摘要 |
Liquid carbon dioxide is injected through one end into the upper compartment (14) of the tunnel. The gaseous CO2 is circulated in the lower compartment (13) partly in a countercurrent manner and partly in a cocurrent manner relative to the objects (22) to be cooled, by a central fan (9). Application in the temporary hardening of products of rubber and plastics material and in the precise cooling of food products.
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