Patent ID: 8835707
Filing Date: 2014-09-16
Classification: A62D,B09B

Abstract:
1. An asbestos detoxification method for disposing of an existing asbestos layer sprayed onto a surface of a base material, the method comprising: a step C1 of impregnating an existing asbestos layer sprayed onto a surface of a base material with an asbestos melting agent and then detaching the existing asbestos layer from the surface of the base material, wherein the asbestos melting agent is at least one calcium compound selected from the group consisting of calcium fluoride, calcium carbonate, calcium oxide, and calcium hydroxide; a step C2 of pulverizing the detached asbestos layer and a resin subsidiary material used for disposal of the asbestos layer; a step C3 of heating the pulverized material obtained in step C2 to vaporize a resin portion thereof and to separate the resin portion from an asbestos portion; a step C4 of loading the asbestos portion separated in step C3 into a melting furnace; a step C5 of converting the vaporized resin portion into plastic oil and combusting either or both of the oil and a fuel; and a step C6 of heating and melting the asbestos portion in the melting furnace using the heat obtained in step C5.