发明授权
US08647473B2 Continuous digester with a bottom scraper equipped with draining apertures 失效
连续消化器,底部刮刀配有排水孔

  • 专利标题: Continuous digester with a bottom scraper equipped with draining apertures
  • 专利标题(中): 连续消化器,底部刮刀配有排水孔
  • 申请号: US13979851
    申请日: 2011-01-25
  • 公开(公告)号: US08647473B2
    公开(公告)日: 2014-02-11
  • 发明人: Krister Olsson
  • 申请人: Krister Olsson
  • 申请人地址: SE Sundsvall
  • 专利权人: Metso Paper Sweden AB
  • 当前专利权人: Metso Paper Sweden AB
  • 当前专利权人地址: SE Sundsvall
  • 代理机构: Fasth Law Offices
  • 代理商 Rolf Fasth
  • 国际申请: PCT/SE2011/050075 WO 20110125
  • 国际公布: WO2012/102650 WO 20120802
  • 主分类号: D21C7/00
  • IPC分类号: D21C7/00
Continuous digester with a bottom scraper equipped with draining apertures
摘要:
The continuous digester is for producing pulp from comminuted cellulosic material. The digester has a cone diverter on a bottom scraper arranged in the bottom of the digester for assisting in out feed of pulp produced. The cone diverter of the bottom scraper has an upper inclined surface of the cone diverter with an inclination angle in the range 30±10 degrees in relation to the vertical. In order to improve washing performance in the bottom of the digester, especially for overloaded digesters, the upper inclined surface is equipped with draining apertures in fluid communication with a liquid receiving chamber inside the cone diverter. The liquid receiving chamber is connected via a drainage channel to the exterior of the vessel.
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