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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)

Technical Report:

Abstract

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.
Authors:
Shibuya, M; Amakawa, T; Adachi, K; Yasui, S; Iwata, M; [1]  Yamazaki, T; [2]  Kinoshita, K; [3]  Iida, K [4] 
  1. Central Research Institute of Electric Power Industry, Tokyo (Japan)
  2. The Tokyo Electric Power Co. Inc., Tokyo (Japan)
  3. Kawasaki Steel Corp., Tokyo (Japan)
  4. Koike Sanso Kogyo Co. Ltd., Tokyo (Japan)
Publication Date:
Aug 01, 1991
Product Type:
Technical Report
Report Number:
CRIE-W-0384
Reference Number:
SCA: 320604; PA: NEDO-92:950384; EDB-93:014287; SN: 93000919555
Resource Relation:
Other Information: PBD: Aug 1991
Subject:
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
OSTI ID:
10115581
Research Organizations:
Central Research Inst. of Electric Power Industry, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE93754079; TRN: 92:950384
Availability:
OSTI; NTIS
Submitting Site:
NEDO
Size:
18 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Shibuya, M, Amakawa, T, Adachi, K, Yasui, S, Iwata, M, Yamazaki, T, Kinoshita, K, and Iida, K. 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). Japan: N. p., 1991. Web.
Shibuya, M, Amakawa, T, Adachi, K, Yasui, S, Iwata, M, Yamazaki, T, Kinoshita, K, & Iida, K. 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). Japan.
Shibuya, M, Amakawa, T, Adachi, K, Yasui, S, Iwata, M, Yamazaki, T, Kinoshita, K, and Iida, K. 1991. "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)." Japan.
@misc{etde_10115581,
title = {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)}
author = {Shibuya, M, Amakawa, T, Adachi, K, Yasui, S, Iwata, M, Yamazaki, T, Kinoshita, K, and Iida, K}
abstractNote = {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.}
place = {Japan}
year = {1991}
month = {Aug}
}