公开(公告)号：US5282429A

公开(公告)日：1994-02-01

申请号：US897083

申请日：1992-06-11

申请人： Masami Kato ,  Tadashi Tanaka ,  Yasuki Nishimura ,  Katsutoshi Yata ,  Masahiko Nakao ,  Takeshi Sakai ,  Tsuyoshi Ohishi ,  Tsuneo Higashi

发明人： Masami Kato ,  Tadashi Tanaka ,  Yasuki Nishimura ,  Katsutoshi Yata ,  Masahiko Nakao ,  Takeshi Sakai ,  Tsuyoshi Ohishi ,  Tsuneo Higashi

IPC分类号： B03C3/01 ,  B03C3/014 ,  B03C3/019 ,  B03C3/74 ,  F23J15/00 ,  F23J3/00

CPC分类号： B03C3/01 ,  B03C3/014 ,  B03C3/019 ,  B03C3/74 ,  F23J15/006 ,  F23J2215/20 ,  F23J2217/102 ,  F23J2219/60

摘要： In a coal-fired boiler, a heat recovery unit is located upstream of a dry electrostatic precipitator so as to reduce the temperature of exhaust gas flowing to the dry electrostatic precipitator and thus prevent reverse ionization in the electrostatic precipitator. The heat recovery unit located upstream of the dry electrostatic precipitator will in no way be corroded even if the concentration of dust is reduced in the dry electrostatic precipitator. A desulfurization unit does not require a cooling/dust removing section and eliminates the need for a wet electrostatic precipitator. The dry electrostatic precipitator includes a gas passage divided into a plurality of parallel passages and dampers operable to close the passages. This arrangement prevents dust from being dispersed as a result of hammering without charge.

摘要翻译： 在燃煤锅炉中，热回收装置位于干式静电除尘器的上游，以便降低流向干式静电除尘器的废气的温度，从而防止静电除尘器中的反向电离。 即使在干式静电除尘器中灰尘浓度降低，位于干式静电除尘器上游的热回收单元也不会被腐蚀。 脱硫装置不需要冷却除尘部，不需要湿式静电除尘器。 干式静电除尘器包括分成多个平行通道的气体通道和可操作以封闭通道的阻尼器。 这种布置防止灰尘由于锤击而没有充电而分散。