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JPS59169523A Control of wet waste gas desulfurization apparatus 失效
标题翻译：湿废气脱硫装置的控制
公开(公告)号：JPS59169523A
公开(公告)日：1984-09-25
申请号：JP4141683
申请日：1983-03-15
申请人： Babcock Hitachi Kk
发明人： NARITA TSUNEO , NISHIMURA TSUCHI , KATSUBE TOSHIO , ASANO HIROMITSU , OBATA KOUZOU , SOGA MITSUSACHI
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77 , C01F11/46
摘要： PURPOSE: To attain to reduce the power cost of an air compressor, by controlling the amount and pressure of air supplied to an oxidizing tower corresponding to the amount of calcium sulfite generated in an exhaust gas absorbing tower supplied to the oxidizing tower.
CONSTITUTION: In a wet waste gas desulfurization by absorbing SO
x in exhaust gas with a limestone slurry is supplied to an oxidizing tower 15 through an oxidizing tower supply tank 13 to be oxidized to calcium sulfate with air sent into said tower 15 from an oxidizing air compressor 21 while the reaction mixture is withdrawn to a gypsum thickener 16 to recover gypsum, the air amount sent to the oxidizing tower 15 is controlled corresponding to the amount of calcium sulfite supplied to said oxidizing tower 15 by a flow meter 105 and a control valve 111 or air pressure is controlled by a pressure controller 107 and a control valve 110. In parallel to this operation, a suction valve 113 and an air release valve 112 are opened and closed by the pressure switch 106 provided to an air tank 22 for storing oxidizing air to subject the air compressor 21 to repeated load and unload operations and the power reduction during low load is performed.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了降低空气压缩机的动力成本，通过控制供给氧化塔的空气的量和压力，与供给氧化塔的废气吸收塔中产生的亚硫酸钙的量相对应。构成：在通过用石灰石浆料吸收废气中的SO x的湿废气中，通过氧化塔供应罐13将氧化塔15供给到氧化塔15中，以从氧化空气压缩机送入塔15的空气被氧化成硫酸钙 21，同时将反应混合物取出到石膏增稠剂16中以回收石膏，送入氧化塔15的空气量通过流量计105和控制阀111对应于供给到氧化塔15的亚硫酸钙的量来控制或气压由压力控制器107和控制阀110控制。与此同时，吸入阀113和排气阀112被设置在用于储存氧化的空气罐22的压力开关106打开和关闭空气对空气压缩机21进行重复的负载和卸载操作，并且执行低负载期间的功率降低。

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