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发明授权
CN107096371B 一种宽负荷调节的石灰石浆液供应系统及调节方法 有权

一种宽负荷调节的石灰石浆液供应系统及调节方法
摘要：
本发明涉及一种宽负荷调节的石灰石浆液供应系统及调节方法，属于脱硫技术领域。所述石灰石浆液供应系统，包括：石灰石浆液箱，石灰石浆液箱的出口接石灰石浆液泵入口，石灰石浆液泵出口分别接石灰石浆液密度测量管路和石灰石浆液流量测量管路的入口，石灰石浆液密度测量管路的出口连接石灰石浆液箱的入口，石灰石浆液流量测量管路的出口连接脱硫吸收塔；石灰石浆液泵入口还接有工艺水管路；其中，所述石灰石浆液泵连接有变频器。本发明还涉及一种基于所述的宽负荷调节的石灰石浆液供应系统的调节方法。本发明解决了低SO2负荷工况下石灰石添加量不能实时跟随SO2负荷变化的问题，实现了脱硫系统pH值和SO2排放浓度的稳定控制。
摘要（英）：

The invention relates to a limestone slurry supply system with wide load adjustment and an adjusting method based thereon and belongs to the technical field of desulfurization; the limestone slurry supply system comprises a limestone slurry tank, an outlet of the limestone slurry tank is connected to an inlet of a limestone slurry pump, an outlet of the limestone slurry pump is connected to an inlet of a limestone slurry density measuring pipeline and an inlet of a limestone slurry flow measuring pipeline, an outlet of the limestone slurry density measuring pipeline is connected to an inlet of the limestone slurry tank, an outlet of the limestone slurry flow measuring pipeline is connected to a desulfurization absorbing column, and the inlet of the limestone slurry pump is also connected with a process water pipeline, wherein the limestone slurry pump is connected with a frequency converter. The invention also relates to an adjusting method based on the limestone slurry supply system with wide load adjustment. The problem that limestone addition is unable to vary in real time along with SO2 load under low SO2 load is solved, and pH value and SO2 emission concentration are stably controlled for a desulfurization system.

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