Title:
METHOD FOR REMOVING CONTAMINATION DUE TO MATTER CONTAMINATED BY PCB
Document Type and Number:
Japanese Patent JP3685316
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for removing contamination due to a matter contaminated by PCB by a vacuum heating method in which temp. rising speed is high and the temp. rises with narrow temp. distribution.
SOLUTION: In the method for removing contamination, the mater contaminated by the PCB is heated under vacuum to evaporate and remove the PCB in the contaminated matter. In this case, the matter 2 contaminated by the PCB is charged in a furnace 1 heated under vacuum, and high temp. oil is supplied in circulation 5→4→3→5 to the matter 2 contaminated by the PCB as a part of a heating means for the charged matter contaminated by the PCB, and the matter 2 contaminated by the PCB is an electric equipment stuck or impregnated with PCB-containing insulating oil, and transformer oil is used as the high temp. oil.
Inventors:
Kubota Yoko
Takuya Nakamura
Takuya Nakamura
Application Number:
JP23387299A
Publication Date:
August 17, 2005
Filing Date:
August 20, 1999
Export Citation:
Assignee:
Ebara Corporation
International Classes:
B09B3/00; (IPC1-7): B09B3/00
Domestic Patent References:
| JP9192534A | ||||
| JP9192535A | ||||
| JP4188711A | ||||
| JP3178675A | ||||
| JP10289824A | ||||
| JP10225667A | ||||
| JP5007860A | ||||
| JP10137734A | ||||
| JP5022088U | ||||
| JP7204698A | ||||
| JP11092588A |
Attorney, Agent or Firm:
Dai Matsuda
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