METHOD FOR SEPARATING AND RECOVERING UNUSED RECOVERY POWDER FIRE EXTINGUISHER

PROBLEM TO BE SOLVED: To provide a method for separating and recovering an unused powder fire extinguisher for using the unused powder fire extinguisher as a reusable material by securely and easily separating foreign matter mixed in the unused recovery powder fire extinguisher removed to a containe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FUKUDA TAIKIN, OKUGAWA YOSHINORI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING ORPROTECTING AGAINST HARMFUL CHEMICAL AGENTS DISPOSAL OF SOLID WASTE FIRE-FIGHTING HUMAN NECESSITIES LIFE-SAVING MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL PERFORMING OPERATIONS RECLAMATION OF CONTAMINED SOIL SOIL SEPARATING SOLIDS FROM SOLIDS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS SORTING TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for separating and recovering an unused powder fire extinguisher for using the unused powder fire extinguisher as a reusable material by securely and easily separating foreign matter mixed in the unused recovery powder fire extinguisher removed to a container such as a drum can from the unused recovery powder fire extinguisher. SOLUTION: The unused recovery powder fire extinguisher removed from a plurality of extinguishers filled with a prescribed quantity of unused recovery fire extinguisher is transferred to a plurality of containers and delivered to a disposal facility 1, where the unused recovery fire extinguisher is screened through a screen 2A on a first stage of a screen separating device 2, and large foreign matter such as factory waste containing magnetic metals is captured, separated and removed. After that, medium-sized foreign matter is captured in a screen 2B on a second stage and separated and removed. Then, fine foreign matter slightly larger than the particle diameter of the unused recovery powder fire extinguisher is captured in a screen 2C on a final stage, and separated and removed. After the above processes, the unused recovery powder fire extinguisher suitable to be used as a reusable material is recovered. COPYRIGHT: (C)2005,JPO&NCIPI