Patent ID: 9637687
Date: 2017-05-02
CPC Classifications: B01D,B02C,B09B,C10G

Claim:
1. An infectious medical waste treatment system, comprising: an infectious medical waste sterilizing and volume-reducing apparatus including a heating and compressing device for sterilizing, reducing in volume and detoxifying plastic infectious medical waste by heating and compressing the infectious medical waste; a cake cutting device including a cutter 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 a shredder for shredding the treated cake cut in the cake cutting device into a fixed grain size; a flake conveying device including a conveyor 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 a sealed-type supplier for supplying the flakes that are supplied from the flake temporary storage tank to a heating, dry distilling and gasifying apparatus; the heating, dry distilling and gasifying apparatus is 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 a gas cooling and liquefier 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 a remover connected by piping to the gas cooling and liquefying apparatus for removing chloride, nitride and sulfide included in residual gas that is not liquefied by the gas cooling and liquefying apparatus; an unburnt gas combustion apparatus 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 a system controller 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 gas cooling and liquefying apparatus is a multitubular heat exchanger, and is a gas cooling and liquefying apparatus with an automatic cleaning and removing function for scale on tubes that can remove the scale on all tubes at the same time by placing a movable plate in a position facing one tube plate of the multitubular heat exchanger, fastening rod-shaped members to a position facing tube opening portions on the movable plate, fastening scraper metal fittings to distal ends of the respective rod-shaped members, and reciprocating the scraper metal fittings from one tube opening portions to the other tube opening portions by a reciprocator for the movable plate, and can clean and remove scale adhering to the scraper metal fittings by placing cleaning nozzles that are connected by piping to a detergent supplying pump on a base member in a position opposing the tube opening portions in the other tube opening portions of the multitubular heat exchanger, and actuating the detergent supplying pump to inject a detergent from the cleaning nozzles when the scraper metal fittings reach the other tube opening portions.