公开(公告)号：WO2013024198A1

公开(公告)日：2013-02-21

申请号：PCT/FI2011/050727

申请日：2011-08-18

Applicant: OUTOTEC OYJ ,  LEHIKOINEN, Anssi ,  VAUHKONEN, Marko

Inventor： LEHIKOINEN, Anssi ,  VAUHKONEN, Marko

IPC: G01F23/26 ,  B03D1/02 ,  G01N27/02

CPC classification number: G01N27/04 ,  B03D1/02 ,  B03D1/028 ,  G01F23/0023 ,  G01F23/242 ,  G01F23/245 ,  G01F23/26

Abstract: The present invention relates to interface level measurements in a tank or container comprising different material layers and especially to flotation processes which are especially applied in mineral industry. The method according to the invention comprises analyzing material in a container (10) comprising slurry (11a) and/or froth (11b) and/or gas and/or a transitional area between the froth (11b) and the slurry (11a), using at least one probe (12) comprising a plurality of electrodes (12') capable of being in contact with the material (11a, 11b), injecting and measuring currents or voltages through at least two electrodes (12'), and determining the conductivity distribution for the material (11a, 11b) using model based calculations, which comprise reconstruction of a vertical conductivity profile among the material (11a, 11b).

Abstract translation: 本发明涉及包含不同材料层的罐或容器中的界面液位测量，特别涉及特别适用于矿物工业的浮选工艺。 根据本发明的方法包括分析包含浆液（11a）和/或泡沫（11b）和/或气体和/或泡沫（11b）和浆料（11a）之间的过渡区域的容器（10）中的材料， 使用包括能够与所述材料（11a，11b）接触的多个电极（12'）的至少一个探针（12），通过至少两个电极（12'）注入和测量电流或电压，并且确定 使用基于模型的计算的材料（11a，11b）的导电率分布，其包括在材料（11a，11b）中重建垂直导电率分布。

公开(公告)号：WO2011039416A1

公开(公告)日：2011-04-07

申请号：PCT/FI2010/050749

申请日：2010-09-29

Applicant: NUMCORE OY ,  KAIPIO, Jari ,  LEHIKOINEN, Anssi ,  VOUTILAINEN, Arto ,  VAUHKONEN, Marko

Inventor： KAIPIO, Jari ,  LEHIKOINEN, Anssi ,  VOUTILAINEN, Arto ,  VAUHKONEN, Marko

IPC: G01N27/06 ,  G01N27/07 ,  G01R27/22 ,  G01V3/06

CPC classification number: G01N27/06 ,  G01N33/02 ,  G01N33/34

Abstract: A method for determining the electrical conductivity of a mass flow in a three dimensional target volume (2) comprises the steps of placing electrodes (3) in a measuring connection with the target volume;supplying alternating voltage or alternating current to the tar- get volume between two of the electrodes (3) and measuring the current or the voltage between two of the electrodes (3);determining a state space model which defines the relationships between the electrical conductivity, the voltage and the current in the target volume (2) and which also defines the evolution of the electrical conductivity as a function of time; comparing the currents and/or the voltages according to the state space model with the supplied and the measured ones; and modifying as needed the state space model to decrease the differences between the calculated and the measured results. According to the present invention, the electrodes (3) are placed substantially within one plane (4); and the state space model is determined so as to comprise the time-dependent flow field of the mass flow within the target volume (2).

Abstract translation: 一种用于确定三维目标体积（2）中的质量流的电导率的方法包括以下步骤：将电极（3）放置在与目标体积的测量连接中;向目标体积提供交流电压或交流电 在两个电极（3）之间并且测量两个电极（3）之间的电流或电压;确定限定目标体积（2）中的电导率，电压和电流之间的关系的状态空间模型， 并且还定义了作为时间的函数的电导率的演变; 根据状态空间模型与提供的和测量的电流和/或电压进行比较; 并根据需要修改状态空间模型，以减少计算结果与测量结果之间的差异。 根据本发明，电极（3）基本位于一个平面（4）内; 并且确定状态空间模型以便包括目标体积（2）内的质量流的时间相关流场。

公开(公告)号：WO2011107657A1

公开(公告)日：2011-09-09

申请号：PCT/FI2011/050169

申请日：2011-02-25

Applicant: NUMCORE OY ,  KAIPIO, Jari ,  VAUHKONEN, Marko ,  REUNANEN, Juha ,  LEHIKOINEN, Anssi

Inventor： KAIPIO, Jari ,  VAUHKONEN, Marko ,  REUNANEN, Juha ,  LEHIKOINEN, Anssi

IPC: G01F23/26 ,  G01V3/08

CPC classification number: G01F23/242 ,  G01F23/0061 ,  G01F23/268

Abstract: The present invention describes a method, apparatus and computer program for detecting the locations of boundaries between different materials in a desired measurement volume. The apparatus uses at least one measuring probe, the electrodes of which are characterized in that they together form an assembly that differs from a straight line. In addition, a volume at a further distance from the assembly can also be observed by the assembly, so that measurements can be conducted remotely and, on the other hand, the apparatus stays unbroken in diverse measurement situations. By using the EIT-measurement and applying for example a so-called 1D-σ-method or methods of machine learning, electrical conductivity distributions in the measured volume are detected. As a result, the locations of the possible boundaries between different materials or for example thicknesses of different material layers are detected.

Abstract translation: 本发明描述了一种用于在期望的测量体积中检测不同材料之间的边界的位置的方法，装置和计算机程序。 该装置使用至少一个测量探针，其电极的特征在于它们一起形成与直线不同的组件。 此外，通过组件也可以观察到与组件更远的距离的体积，从而可以远程进行测量，另一方面，设备在不同的测量情况下保持不间断。 通过使用EIT测量并应用所谓的1D-s方法或机器学习方法，检测测量体积中的电导率分布。 结果，检测不同材料之间的可能边界的位置或例如不同材料层的厚度的位置。