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    • 63. 发明专利
    • CHEMICAL CONTAINER WASHING METHOD AND EQUIPMENT THEREFOR
    • JPH01213191A
    • 1989-08-25
    • JP3715188
    • 1988-02-18
    • KANEBO LTDHISAKA WORKS LTD
    • KAIMORI MICHINOBUAIKAWA AKIRAURAGAMI AKIRAISHIMARU OSAMUTAKIGAWA MASAOSHIRAI BUNRO
    • B08B9/093B08B9/28
    • PURPOSE:To keep the water consumption at the final stage minimum and prevent the dilution or variation of the chemical fluid, becoming more than a desired concentration, by washing the inside of a chemical container previously with a chemical fluid for which a chemical is dissolved with water, then washing it with water, and collecting the washing water in the dissolution tank. CONSTITUTION:Into a dissolution tank 2, a chemical is thrown in, and the chemical and water are stirred for circulation through a circulation pipe 5 for a prescribed period of time. When the chemical has been dissolved evenly, a circulation valve 9 is closed, and a washing valve 10 is opened to make the chemical fluid inject from a chemical container washing nozzle 12 through a pipe for container washing 6. Thus the remaining chemical in a chemical container 20 is washed way and thrown into the dissolution tank 2. By closing the washing valve 10, and opening the circulation valve 9 and a pouring valve 8, the pouring to the next process is started while stirring the washing fluid and chemical fluid so that they dissolve evenly. At the same time, by opening a washing valve 11, a small amount of water is made to inject from the chemical container washing nozzle 12 through a pipe for container washing 7 to give a final washing to the chemical container 20, and the water is thrown into the dissolution tank 2.