专利名称：Lime slaking and grit removal process utilized in SO.sub.2 removal
发明人：Robert C. Emmett
申请号：US06/456923
申请日：19830110
公开号：US04482528A
公开日：
19841113
reactive diluent
专利内容由知识产权出版社提供
摘要：A lime slaking system for hydration of lime and removal of unwanted grit, particularly for formation of reactive slaked lime to be used in SO. sub.2 scrubbing of effluent gases, comprising a series of slaking vessels (10,12) for reacting CaO and water while agitating the reactants, a dilution mix tank (14) receiving a viscous slaked lime slurry from the vessels, diluent for the dilution tank comprising an upstream classifier overflow stream (16), a cyclone (19) receiving pumped diluted slurry from tank (14), the overflow (21) of the cyclone providing usable slaked lime product and the underflow (22) exiting to the upstream classifier 24 where grit materials are separated and removed. Dilution for effective classification is provided by spent scrubbing process water containing appreciable sulfate ions. Detention time is such in the classifier (24) along with presence of a prescribed amount of slaked lime exiting the cyclone underflow (22), to allow precipitation of the sulfate ion as gypsum in the classifier (24) to prevent scaling in the gas scrubbing equipment. Optionally an attrition machine (30) may be incorporated along with a subsequent classifier (32) to recover any occluded slaked lime particles reporting with the grit discharge (27) from classifier (24).
申请人：ENVIROTECH CORPORATION
代理人：Robert E. Krebs 更多信息请下载全文后查看

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。