"TITLE","AUTHORS","SUBJECT","SUBJECT_RELATED","DESCRIPTION","PUBLISHER","AVAILABILITY","RESEARCH_ORG","SPONSORING_ORG","PUBLICATION_COUNTRY","PUBLICATION_DATE","CONTRIBUTING_ORGS","LANGUAGE","RESOURCE_TYPE","TYPE_QUALIFIER","JOURNAL_ISSUE","JOURNAL_VOLUME","RELATION","COVERAGE","FORMAT","IDENTIFIER","REPORT_NUMBER","DOE_CONTRACT_NUMBER","OTHER_IDENTIFIER","DOI","RIGHTS","ENTRY_DATE","OSTI_IDENTIFIER","PURL_URL" "Development of a 100KW class plasma torch for ash-melting plasma furnaces; Funensei haikibutsu yoyuyo plasma ro no kaihatsu (toshi haikibutsu no shokyakubai yoyuyo 100KW kyu torch no kaihatsu)","Shibuya, M; Amakawa, T; Adachi, K; Yasui, S; Iwata, M [Central Research Institute of Electric Power Industry, Tokyo (Japan)]; Yamazaki, T [The Tokyo Electric Power Co. Inc., Tokyo (Japan)]; Kinoshita, K [Kawasaki Steel Corp., Tokyo (Japan)]; Iida, K [Koike Sanso Kogyo Co. Ltd., Tokyo (Japan)]","32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; MUNICIPAL WASTES; VOLUME; COMPACTING; RECYCLING; MELTING POINTS; PLASMA FURNACES; SLAGGING PYROLYSIS PROCESS; BURNERS; POWER RANGE 10-100 KW; ELECTRODES; TUNGSTEN; SERVICE LIFE; OPERATING COST; NITROGEN; JETS; HEAT LOSSES; NITROGEN OXIDES; 320604; MUNICIPAL WASTE MANAGEMENT","","Wastes processing technologies are demanded in recent years for wastes increasing especially in urban areas to be turned harmless, reduced in volume, and reutilized as resources. This paper reports development of a 100 Kw class plasma torch applicable to ash-melting plasma furnaces and summarizes the results of a performance verification test on the torch trially used in a 300 kW class model plasma furnace. The developed torch is of a low-flow nitrogen gas blowing type using compact and solid tungsten electrodes for the reasons of long-term durability and processing expense reduction. The trial use in the model plasma furnace proved assurance in reducing heat loss, NO{sub x} contained in the waste gas, and plasma gas cost, as well as the durability as a result of 100-hour continuous operation. The incineration furnace has a melting capacity of 50 kg/100kw{center_dot}h, which could be increased up to 100 kg with practical usefulness if an improvement is given to reduce the size. A prospect was obtained that the ash volume could be reduced by (2/3) by melting and solidifying it. The melting point temperature is about 1200{degree}C, though depending on types of ashes. 15 figs., 2 tabs.","","OSTI; NTIS","Central Research Inst. of Electric Power Industry, Tokyo (Japan)","","Japan","1991-08-01","","Japanese","Technical Report","","","","Other Information: PBD: Aug 1991","","Medium: X; Size: 18 p.","ON: DE93754079","CRIE-W-0384","","Other: ON: DE93754079; TRN: 92:950384","https://doi.org/","","2008-02-12","10115581",""