Infectious medical waste treatment system

An infectious medical waste treatment system, comprising:

• an infectious medical waste sterilizing and volume-reducing apparatus including heating and compressing means for sterilizing, reducing in volume and detoxifying plastic infectious medical waste by heating and compressing the infectious medical waste;
• a cake cutting device including cutting means for cutting a treated cake that is obtained by sterilization, volume-reduction and detoxification by heating and compression in the infectious medical waste sterilizing and volume-reducing apparatus, into an arbitrary size;
• a cake shredding device including shredding means for shredding the treated cake cut by the cake cutting device into a fixed grain size;
• a flake conveying device including conveying means for conveying flakes obtained by shredding in the cake shredding device;
• a flake temporary storage tank with a discharge mechanism for temporarily storing the flakes that are conveyed by the flake conveying device;
• a sealed-type flake supplying device including sealed-type supplying means for supplying the flakes that are supplied from the flake temporary storage tank to a sealed vessel;
• a heating, dry distilling and gasifying apparatus including heating and dry distilling means for heating and dry distilling the flakes that are supplied by the sealed-type flake supplying device to gasify the flakes;
• a gas cooling and liquefying apparatus including gas cooling and liquefying means connected by piping to the heating, dry distilling and gasifying apparatus for cooling and liquefying gas that is generated in the heating, dry distilling and gasifying apparatus;
• an exhaust gas treatment apparatus including removing means connected by piping to the gas cooling and liquefying apparatus for removing chloride/nitride/sulfide and the like included in residual gas that is not liquefied by the gas cooling and liquefying apparatus;
• an unburnt gas combustion apparatus including combustion means connected by piping to the exhaust gas treatment apparatus for burning unburnt gas that is discharged from the exhaust gas treatment apparatus and removing odor;
• and
• a system control device including system control means for electrically interlocking and integrally controlling the infectious medical waste treatment apparatus, the cake cutting device, the cake shredding device, the flake conveying device, the flake temporary storage tank, the sealed-type flake supplying device, the heating, dry distilling and gasifying apparatus, the gas cooling and liquefying apparatus, the exhaust gas treatment apparatus, an unburnt gas burner and the unburnt gas combustion apparatus, and
• the infectious medical waste sterilizing and volume-reducing apparatus also includes treated-cake cooling and solidifying means in the heating and compressing means to obtain a consolidated treated cake by cooling treated matter after the infectious medical waste is subjected to sterilizing, volume-reducing and detoxifying treatment by a heating and compressing operation, includes gas filtering means that filters out by an HEPA filter pathogenic bacteria included in generated gas in a step of heating and compressing the infectious medical waste in the heating and compressing means, further includes gas filtrating means that filters out odor included in the generated gas with an activated carbon filter, and can purify the generated gas.

An infectious medical waste treatment system, comprising:

• an infectious medical waste sterilizing and volume-reducing apparatus including heating and compressing means for sterilizing, reducing in volume and detoxifying plastic infectious medical waste by heating and compressing the infectious medical waste;
• a cake cutting device including cutting means for cutting a treated cake that is obtained by performing sterilization, volume-reduction and detoxification by heating and compression in the infectious medical waste sterilizing and volume-reducing apparatus, into an arbitrary size;
• a cake shredding device including shredding means for shredding the treated cake cut by the cake cutting device into a fixed grain size;
• a flake conveying device including conveying means for conveying flakes obtained by shredding in the cake shredding device;
• a flake temporary storage tank with a discharge mechanism for temporarily storing the flakes conveyed by the flake conveying device;
• a sealed-type flake supplying device including sealed-type supplying means for supplying the flakes that are supplied from the flake temporary storage tank to a sealed vessel;
• a heating, dry distilling and gasifying apparatus including heating and dry distilling means for heating and dry distilling the flakes that are supplied by the sealed-type flake supplying device to gasify the flakes;
• a gas cooling and liquefying apparatus including gas cooling and liquefying means connected by piping to the heating, dry distilling and gasifying apparatus for cooling and liquefying gas that is generated in the heating, dry distilling and gasifying apparatus;
• an exhaust gas treatment apparatus including removing means connected by piping to the gas cooling and liquefying apparatus for removing chloride/nitride/sulfide and the like included in residual gas that is not liquefied by the gas cooling and liquefying apparatus;
• an unburnt gas combustion apparatus including combustion means connected by piping to the exhaust gas treatment apparatus for burning unburnt gas that is discharged from the exhaust gas treatment apparatus and removing odor;
• and
• a system control device including system control means for electrically interlocking and integrally controlling the infectious medical waste treatment apparatus, the cake cutting device, the cake shredding device, the flake conveying device, the flake temporary storage tank, the sealed-type flake supplying device, the heating, dry distilling and gasifying apparatus, the gas cooling and liquefying apparatus, the exhaust gas treatment apparatus, an unburnt gas burner and the unburnt gas combustion apparatus,
• wherein the sealed-type flake supplying device is a vertical cylindrical pipe connecting the flake temporary storage tank and the heating, dry distilling and gasifying apparatus, with the vertical cylindrical pipe being provided with two flow path opening and closing means capable of opening and closing a flow path of the vertical cylindrical pipe, up and down, and can intermittently supply the flakes to the heating, dry distilling and gasifying apparatus while a sealed state of the heating, dry distilling and gasifying apparatus is kept by repeating an operation of initially opening upper-side opening and closing means of the flow path opening and closing means to actuate the exhaust mechanism of the flake temporary storage tank to supply the flakes for a fixed time period and stopping the discharge mechanism of the flake temporary storage tank, thereafter, closing the upper-side opening and closing means, subsequently opening a lower-side opening and closing means to cause the flakes to fall freely to the heating, dry distilling and gasifying apparatus, and thereafter closing the lower-side opening and closing means.