低温脆性を利用した二元冷凍低温破砕システム

Japanese Patent JP4201936

B2

Low temperature waste crushing system composed of a low temperature freezing section (30) for cooling waste material below their cold shortness transition temperature by receiving supply of cold heat from a cold heat source (10) and a crushing section (34) for crushing the material cooled in the low temperature freezing section (30) by taking advantage of cold shortness, so as to enable bringing efficiency to cooling by adopting stepwise cooling and enable effective removal of heat, whereby the cold heat source (10) is configured as a binary refrigerating cycles (11,21) combining the first refrigerating cycle of ammonia refrigerant (11) for obtaining the first cold heat higher in temperature than the cold shortness transition temperature and the second refrigerating cycle of ethane refrigerant (21) for obtaining the second cold heat lower in temperature than the cold shortness transition temperature, the low temperature freezing section (30) is configured as a dual steps cooling section (32,33), the preceding and succeeding step, each of which receives cold heat of different temperatures, and the preceding step of the dual steps cooling section (32) is supplied with the higher temperature cold heat of the first refrigerating cycle (11) and the succeeding step (33) is supplied with the lower temperature cold heat of the second refrigerating cycle (21).

Yukio Hirano
Seiichiro Matsuda
Yasuhiro Hirao
Yoshikawa Asahi
Kazutoshi Ito

JP27966199A

December 24, 2008

September 30, 1999

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Maekawa Manufacturing Co., Ltd.

B02C19/18; B29B13/04; B29B13/10; B29B17/00; B29B17/04; F25B7/00; F25D13/06; B29K21/00

JP8001035A
JP61140752A
JP11158461A
JP6201204A
JP10127384A
JP10267427A

Masahisa Takahashi
Hisamaru Hanada

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