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JP2006040619A D.c. power supply device for plasma ash melting furnace and operation method of plasma ash melting furnace 审中-公开
标题翻译：用于等离子熔融炉的电源装置和等离子熔融炉的操作方法
公开(公告)号：JP2006040619A
公开(公告)日：2006-02-09
申请号：JP2004215812
申请日：2004-07-23
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社 , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： MIYAJIMA NORIYUKI , SONOBE KAORU , YABUKI MASAAKI , MIURA AKIZO , WAKAHARA TOSHIHIRO , SAKAKIBARA SHINICHI
IPC分类号： H05B7/18 , F27D11/08 , F27D11/10 , H02M7/12 , H05B7/144
CPC分类号： Y02P10/256 , Y02P10/259
摘要： PROBLEM TO BE SOLVED: To solve a problem where an arc is not generated between a main electrode and a furnace bottom electrode of a plasma ash melting furnace and a side arc is generated between the main electrode and a furnace wall outer shell conductive part; and to solve a problem where the size of a device is increased when an auxiliary power supply circuit is formed for conduction confirmation in restart to increase a cost. SOLUTION: This D.C. power supply device 10 is connected between the main electrode 51 and the furnace bottom electrode 52 of the plasma ash melting furnace 50. An initial charge circuit 30 is connected to a smoothing capacitor 16 of its main rectification circuit 15; the smoothing capacitor 16 is so controlled as to be previously charged to a predetermined low voltage in starting operation; and a conduction detection means 31 for detecting a conduction state between the main electrode 51 and the furnace bottom electrode 52 from output variation of a chopper circuit 17 is formed. After conduction confirmation, the smoothing capacitor 16 is charged from the main rectification circuit 15, and ash is heated and melted by a plasma arc generated by applying a capacitor voltage between the electrodes by a direction of a plasma control panel 1. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：为了解决在等离子灰熔化炉的主电极和炉底电极之间不产生电弧的问题，并且在主电极和炉壁外壳之间产生侧电弧导电部分; 并且为了解决在重新启动时形成辅助电源电路用于导通确认的装置的尺寸增加以增加成本的问题。
解决方案：该直流电源装置10连接在等离子灰熔化炉50的主电极51和炉底电极52之间。初始充电电路30连接到其主整流电路15的平滑电容器16 ; 平滑电容器16被控制为在启动操作中预先充电到预定的低电压; 并且形成用于从斩波电路17的输出变化检测主电极51和炉底电极52之间的导通状态的导通检测装置31。在导通确认之后，从主整流电路15对平滑电容器16进行充电，并且通过等离子体控制面板1的方向在电极之间施加电容器电压而产生的等离子体电弧来加热和熔化灰分。（C）2006，JPO＆NCIPI

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