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Title:
METHOD FOR CONTROLLING PEST IN STORED GRAIN AND SYSTEM THEREFOR
Document Type and Number:
Japanese Patent JP3560382
Kind Code:
B2
Abstract:

PURPOSE: To provide a method and system therefor designed to prevent air pollution due to the mass release of a pest-controlling gas and also ensure pests living among stored grains to be exterminated by the use of relatively small amounts of the gas.
CONSTITUTION: A vacuum vessel 2 is first filled with stored grains 18 and the inside of the vessel 2 is kept at a specified degree of vacuum to cool both the grains 3-8 and pests living among them. Secondly, a high-pressure pest- controlling gas such as carbon dioxide is introduced into the vessel 2 and made to selectively absorb into the pests by making use of moisture content difference to effect extermination or deactivation of the pests. Then, the grains 18 are fed into a large-sized vacuum vessel 9 and the pests are ground by making use of the abrupt expansion of the pest-controlling gas such as carbon dioxide.


Inventors:
Ota, Shingi
Application Number:
JP1995000051373
Publication Date:
June 04, 2004
Filing Date:
March 10, 1995
Export Citation:
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Assignee:
HISAKA WORKS LTD
International Classes:
A01F25/14; A23B9/00; A23L3/3418; A23L7/10; (IPC1-7): A23L3/3418; A01F25/14; A23B9/00; A23L1/10
Attorney, Agent or Firm:
江原 省吾
田中 秀佳
白石 吉之