• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Clearwater clean coal conference;International technical conference on clean energy >INLINE ANALYSIS OF WASHABILITY PARAMETERS FOR PROCESS CONTROL
【24h】

INLINE ANALYSIS OF WASHABILITY PARAMETERS FOR PROCESS CONTROL

机译：用于过程控制的可洗性参数的在线分析

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In washability, the objective is to establish the set of maximum possible separation performance criteria for a given mineral feed. The method of choice for this has been the conventional sink-float analysis. Using traditional float sink methods it is not possible to sample and automatically measure. This fact as well as time, cost and safety aspects as well as required and manageable sample size of the sink-float method have prompted the search for a new approach for establishing separation performance criteria. This is especially important as performance levels of separator plants can be maximised if reliable information based on an analysis of washability in conjunction with particle size distribution, elemental constituency becomes available in time. The new method to establish washability and associated performance information utilises at least two measurement technologies concurrently: single energy X-ray transmission and image processing. For porous or very inhomogeneous materials the results can be refined further by using dual energy X-ray transmission and image processing. If used as a standard laboratory device the continuous build-up of the washability curve allows to evaluate the statistical significance of the sample size during measurement. The measuring method can even be improved if it is combined with an automatic sampling system which feeds a continuous and representative particle stream to the analyser. Then the value of the collected data increases considerably since the washability data are additionally available in time to be considered in the control of the process plant. The washability curve can be derived and is continuously updated based on the particles measured during the past time interval. Older curves and results are stored in a database and can be retrieved for later reference. This technology now enables automated sampling and integrated automated measurement which was previously not possible. This incorporation of an automated washability monitor at a representative sample gives near real-time data that would impinge positively on the profitability of the plant operation. The method was extensively tested using a range of samples with different densities, varying from 1 g/cm3 (coal) to 5 g/cm~3 (iron ore).
机译：在可洗性方面，目标是为给定的矿物饲料建立一套最大可能的分离性能标准。为此选择的方法是常规的沉浮分析。使用传统的浮沉法不可能进行采样和自动测量。这一事实以及时间，成本和安全性方面，以及沉浮法所需的样本量和可管理的样本量，促使人们寻求建立分离性能标准的新方法。这一点尤其重要，因为如果基于对可洗性的分析以及粒度分布以及元素组成的及时获得的可靠信息可以使分离设备的性能水平最大化，那么这是非常重要的。建立耐洗性和相关性能信息的新方法至少同时使用了两种测量技术：单能X射线透射和图像处理。对于多孔或非常不均匀的材料，可以通过使用双能量X射线透射和图像处理来进一步完善结果。如果用作标准实验室设备，则可洗性曲线的不断建立可以评估测量过程中样本量的统计显着性。如果将测量方法与将连续且有代表性的颗粒流馈入分析仪的自动采样系统结合使用，则甚至可以改进该测量方法。然后，所收集的数据的值显着增加，因为可洗性数据可在处理工厂的控制中及时获得，因此可以及时获得。可以得出可洗性曲线，并根据在过去的时间间隔内测得的颗粒不断对其进行更新。较旧的曲线和结果存储在数据库中，可以进行检索以供以后参考。该技术现在可以实现以前无法实现的自动采样和集成自动测量。在代表性样本中加入自动清洗性监控器可提供近乎实时的数据，这将积极影响工厂运营的盈利能力。使用范围从1 g / cm3（煤）到5 g / cm〜3（铁矿石）的不同密度的样品对方法进行了广泛的测试。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号