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研究了测量浮选设备中气泡尺寸的光学方法。该方法将气泡光学测定方法与数字图象方法结合起来以处理获得的信息。该方法用简单的装置将气泡吸到观察室中 ,并将它们暴露在单色CCD逐行扫描摄象机下。在规定的时间间隔内捕俘光学数据 ,并储存起来。自动获取图象 ,并离线处理。在 5 0L实验室型浮选槽中用两相体系对该光学体系进行了试验 ,以研究大量的气泡特性。改变浮选槽的操作条件和化学条件 (叶轮转速、空气流量和起泡剂浓度 ) ,以研究新方法的特点。将试验结果与用UCT气泡尺寸分析仪获得的结果进行比较。本文讨论了新方法的特点 ,并解释了两种方法之间的区别。
Optical methods for measuring bubble size in flotation equipment were studied. This method combines the bubble optics method with the digital image method to process the information obtained. The method uses simple devices to draw bubbles into the viewing chamber and expose them to a monochrome CCD progressive scan camera. Capture optical data at regular intervals and store it. Automatically get the image, and offline processing. The optical system was tested in a 50 L laboratory-type flotation cell using a two-phase system to study a large number of bubble characteristics. The operating conditions and chemical conditions of the flotation cell (impeller speed, air flow and foamer concentration) were changed to investigate the characteristics of the new method. The test results were compared to the results obtained with the UCT bubble size analyzer. This article discusses the characteristics of the new method and explains the differences between the two methods.