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发明公开
CN104874280A 一种层燃炉炉外SNCR脱硝装置 有权

  • 专利标题： 一种层燃炉炉外SNCR脱硝装置
  • 专利标题（英）： SNCR denitration device outside grate-fired furnace
  • 申请号： CN201510290475.3
    申请日： 2015-05-29
  • 公开(公告)号： CN104874280A
    公开(公告)日： 2015-09-02
  • 发明人: 孙永宏
  • 申请人： 孙永宏
  • 申请人地址： 辽宁省沈阳市和平区西安街93号1-6-2
  • 专利权人： 孙永宏
  • 当前专利权人： 孙永宏
  • 当前专利权人地址： 辽宁省沈阳市和平区西安街93号1-6-2
  • 主分类号： B01D53/79
  • IPC分类号： B01D53/79 ;  B01D53/56 ;  F23J15/02
一种层燃炉炉外SNCR脱硝装置
摘要：
本发明提供一种层燃炉炉外SNCR脱硝装置，包括：炉膛，所述炉膛上部沿烟气行进方向设有温度调节机构、辐射换热区和烟气通道，所述烟气通道与对流管束区连结，所述对流管束区和尾部烟道连接，所述尾部烟道中沿烟气行进方向依次布置有省煤器和换热器，所述温度调节机构为可调遮挡辐射隔板，用于将炉膛内的固定换热面积变为可调换热面积。本发明结构简单，操作方便，可将炉膛内的固定辐射换热面积变为可变辐射换热面积，保证在炉膛出口处的烟气温度满足SNCR脱硝工艺的最佳反应温度要求，从而提高脱销效率。
摘要（英）：

The invention provides an SNCR denitration device outside a grate-fired furnace. The SNCR denitration device comprises a hearth, wherein a temperature adjusting mechanism, a radiation heat exchanging area and a smoke passage are disposed on the upper portion of the hearth and along the moving direction of smoke, the smoke passage is connected with a convection bank area, the convection bank area is connected with a tail flue, an economizer and a heat exchanger are sequentially arranged in the tail flue and along the moving direction of the smoke, the temperature adjusting mechanism is an adjustable radiation-blocking baffle, and the temperature adjusting mechanism can change the fixed heat exchanging area in the hearth into adjustable heat exchanging area. The SNCR denitration device has the advantages that the device is simple in structure and convenient to operate, the fixed heat exchanging area in the hearth can be changed into the adjustable heat exchanging area, the smoke temperature at the outlet of the hearth is allowed to satisfy the optical temperature requirement of an SNCR denitration process, and denitration efficiency is increased.

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