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2. 发明授权

US4804460A Column flotation 失效
标题翻译：柱浮选
公开(公告)号：US4804460A
公开(公告)日：1989-02-14
申请号：US162457
申请日：1988-03-01
申请人： Michael H. Moys , James A. Finch
发明人： Michael H. Moys , James A. Finch
IPC分类号： B03D1/02 , B03D1/14 , B03D1/24
CPC分类号： B03D1/02 , B03D1/028 , B03D1/082 , B03D1/14 , B03D1/24
摘要： In the froth flotation of ore in a column, the froth/pulp interface level and the efficiency of the froth washing operation are controlled by determining a profile of temperatures measured in the froth layer and slurry below the interface. Temperatures are measured with temperature sensing elements immersed in the froth layer and extending to below the interface level. The measured profile is compared with a target profile and deviations are corrected by changing the tailings flowrate or the washwater flowrate to return a measured profile to the target profile. An inflection point in the profile occurs at the interface level. The inflection point in a measured profile is compared with a level set point, and a deviation from set point value is corrected by increasing or decreasing the flow of tailings whereby the interface level returns to its set point. The washwater rate is controlled by measuring the slope or the position of a measured temperature profile and comparing the measured slope or position with the slope or position of a target profile, i.e. slope or position set point, and a deviation from set point value is corrected by increasing or decreasing the flow of washwater. The washwater distribution is controlled by measuring the concentrate temperature at a plurality of points at the concentrate overflow, comparing each measured temperature with a set point value, and a deviation from set point value is corrected by adjusting the distribution of washwater. A programmed computer may be used for calculating profiles, comparing measured values with set point values and sending a signal for controlling washwater rate or distribution or tailings flow when the deviation of measured values exceeds set point values by a predetermined amount.
摘要翻译：在塔中的矿石的泡沫浮选中，通过确定在泡沫层和界面下面的浆料中测量的温度分布来控制泡沫/纸浆界面水平和泡沫洗涤操作的效率。温度用浸入泡沫层的温度感测元件测量并延伸到界面水平以下。将测得的轮廓与目标轮廓进行比较，并且通过改变尾矿流量或冲洗水流量来校正偏差，以将测量的轮廓返回到目标轮廓。配置文件中的拐点发生在界面级别。将测量轮廓中的拐点与水平设定点进行比较，通过增加或减少尾矿流量来校正与设定值的偏差，由此界面水平返回到其设定点。通过测量测量温度曲线的斜率或位置来控制洗涤水速率，并将测量的斜率或位置与目标曲线的斜率或位置（即斜率或位置设定点）进行比较，并且校正与设定值的偏差。通过增加或减少洗涤水的流量。通过在浓缩物溢出处测量多个点处的浓缩温度来控制洗涤水分布，将每个测量温度与设定值进行比较，并且通过调节洗涤水的分布来校正与设定值的偏差。编程计算机可用于计算轮廓，将测量值与设定值相比较，并且当测量值的偏差超过设定点值预定量时，发送用于控制洗涤水速率或分布或尾矿流量的信号。

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