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首页> 外文会议>41th Annual Conference of Metallurgists of CIM International Symposium on New Technology Implementation Metallurgical Processes Aug 11-14, 2002 Montreal, Quebec, Canada >Process modeling as a tool for improving the hot-stage zinc dust purification process
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Process modeling as a tool for improving the hot-stage zinc dust purification process

机译：工艺建模作为改善热锌粉净化工艺的工具

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摘要

This paper highlights how an empirical kinetic process model was developed from laboratory and plant test results and applied to optimize the hot-stage zinc dust purification plant at Teck Cominco's Trail Operations. Making major modifications to a commercial operating plant by trial and error is extremely difficult and time-consuming. The kinetic model was originally developed to understand how more than 36 process control variables contributed to quality control excursions in the recycled purification process and was later applied to the current straight-through process. The kinetic model allows the engineer to determine the operating limits of key parameters such as flow rate, reagent addition, tank requirements, temperature and zinc dust size distribution based on equipment available in the plant and the desired electrolyte quality specifications. Modeling helped test new ideas in purification without extensive laboratory and pilot work, save development time and costs, and accelerate the incorporation of new concepts into the commercial plant. It also improved the understanding of the process and established the foundation for future process control improvements.
机译：本文重点介绍了如何根据实验室和工厂的测试结果开发经验动力学过程模型，并将其用于优化Teck Cominco的Trail Operations的热阶段锌粉净化工厂。通过反复试验对商业运营工厂进行重大修改非常困难且耗时。最初开发动力学模型是为了了解超过36个过程控制变量如何在循环纯化过程中促成质量控制偏移，后来被应用到当前的直通式过程中。动力学模型使工程师可以根据工厂中可用的设备和所需的电解质质量规格，确定关键参数的操作极限，例如流速，试剂添加，槽要求，温度和锌粉粒度分布。建模有助于在无需大量实验室和试验工作的情况下测试纯化中的新概念，节省了开发时间和成本，并加速了将新概念并入商业工厂。它还提高了对过程的理解，并为将来的过程控制改进奠定了基础。

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