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1.发明公开SETTLER FOR DECANTING MINERAL SLURRIES AND METHOD FOR SEPARATING CLARIFIED LIQUID FROM THICKENED SLURRY OF SAID MINERAL SLURRIES 审中-公开沉淀矿物泥浆罐倾析法分离的一个澄清液体增厚泥矿物泥浆
公开(公告)号：EP3082992A1
公开(公告)日：2016-10-26
申请号：EP14872607.8
申请日：2014-11-28
IPC分类号： B01D21/24
CPC分类号： B01D21/08 , B01D21/01 , B01D21/06 , B01D21/2405 , B01D21/2411 , B01D21/2427 , B01D21/2444 , B01D21/32 , C01F7/0646 , C01P2006/80
摘要： A settler (201) for decanting mineral slurries comprising a tank (203) having a side wall (205), a bottom (207) and a top (209), an outlet (211) for a thickened slurry at the bottom of the tank, a first overflow outlet (213) for withdrawing an overflow stream of a clarified liquid, a slurry inlet means (215) for introducing fresh slurry into the tank, the slurry inlet means (215) having a slurry opening (261) through which fresh slurry joins a body of slurry in the tank, and a stirrer (217) having a vertical axis (239) around which the stirrer rotates or reciprocates, in said settler the slurry opening (261) is displaced laterally relative to said vertical axis of the stirrer and said slurry inlet means (215) comprises mixing means (251). A separation installation comprising the above settler and a method for separating a clarified liquid from a thickened slurry of a mineral slurry.
摘要翻译： 一种用于滗析矿物浆料包括在所述罐的底部具有用于增稠泥浆的侧壁（205），底部（207）和一个顶部（209）到出口（211）的箱（203）沉降器（201） ，用于取出溢出澄清的液体的流，浆料入口装置（215）用于引入新鲜浆料到罐的第一溢流出口（213），具有通过将新鲜的浆料开口（261）的浆液入口装置（215） 浆液加入具有垂直轴（239）围绕该搅拌器旋转或所述沉降往复运动将浆料开口（261）在罐中淤浆的主体，和搅拌器（217）相对于晚集会的所述垂直轴位移 搅拌器和所述泥浆进口手段（215）包括混合装置（251）。 的分离设备，其包括上述的沉降和用于从矿物浆料的增稠泥浆分离澄清的液体的方法。
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2.发明公开PROCESS AND INSTALLATION FOR PRODUCING ALUMINA TRIHYDRATE BY ALKALINE DIGESTION OF BAUXITE ORE 审中-公开方法和制度与氢氧化铝BY铝土矿降解碱性
公开(公告)号：EP3084023A1
公开(公告)日：2016-10-26
申请号：EP14870988.4
申请日：2014-11-28
摘要： A process for producing alumina trihydrate comprising an digestion step (26), a separation step (70), and a precipitation step (52) the separation step including: b1) pretreating a slurry from the digestion step by adding a flocculant to said slurry and mixing the flocculant and the slurry, b2) settling the resulting flocculated slurry in a gravity settler vessel, b3) determining a measured value representative of the concentration of solid particles in the resulting clarified liquor, b4) comparing the measured value with a predetermined threshold, b5) feeding said clarified liquor directly to the precipitation step (52), while the measured value is less than said predetermined threshold, and b6) redirecting said clarified liquor to the pre-treatment step b1), when the measured value is more than said predetermined threshold. An installation for operating said process.
摘要翻译： 一种用于生产三水合氧化铝消化步骤（26），一个分离步骤（70），和一个沉淀步骤（52）的分离步骤，包括的方法，包括：b1）中通过添加絮凝剂向所述的浆液和预处理从消化步骤的浆料 混合絮凝剂和浆料，b2）的沉降所得絮凝浆料在重力沉降器，b3）的确定性采矿测量代表固体颗粒的浓度在所得澄清液体值，B4）与预定阈值进行比较的测量值， B5）将所述澄清液体直接向沉淀步骤（52），而所测得的值小于所述预定阈值，和b6）重定向。所述澄清液到预处理步骤b1）中当测量值比所述更 预定阈值。 用于操作安装所述过程。
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3.发明授权
公开(公告)号：EP3084023B1
公开(公告)日：2020-01-08
申请号：EP14870988.4
申请日：2014-11-28
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