| 摘要 |
PROBLEM TO BE SOLVED: To provide a melting pretreatment process of asbestos waste capable of perfectly preventing scattering of asbestos, high in safety and making the maintenance of an apparatus easy, and an apparatus therefor. SOLUTION: The apparatus comprises a primary crushing roller 6 and a secondary crushing roller 7 provided on the front stage side of a melting furnace for carrying out melting treatment of the asbestos waste 50 to crush the asbestos waste 50, wherein these crushing rollers 6 and 7 are placed in a casing 4 extended in a vertical direction with a waste introduction chute 2 installed above the casing 4 and a crushed material discharge port installed on the lower end 8 of the casing, and with the lower end of the casing immersed in a water tank 9 to seal it by water, thereby forming a closed space to maintain the closed space in a negative condition. COPYRIGHT: (C)2008,JPO&INPIT
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