• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Developments in chemical engineering and mineral processing >Electrolyte Inventory Control in a Sulphide Leach Plant
【24h】

Electrolyte Inventory Control in a Sulphide Leach Plant

机译：硫化物浸出厂中的电解质库存控制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The regulation of electrolyte inventory in a zinc leaching plant is a challenging process control problem. This paper presents a simple plant-wide control strategy to maintain level in the Electrolytic and Melting (E&M) feed tank at the operator-specified upper limit. Electrolyte production is thereby maximized while ensuring that the outlet temperature of the Hot Stage Purification heat exchanger remains greater than its lower limit, and that levels in the other vessels are kept in their desired ranges. The basic principle underlying this approach is to set throughput at a value which will consume spare capacity in the E&M tank over the next M hours of operation. To tune the strategy, the user must choose the prediction horizon M, as well as a maximum allowable rate-of-change in plant throughput. The algorithm is easily programmed using standard DCS functions and does not require the purchase of third-party optimization software. Simulation results are included which demonstrate that the proposed method provides high-performance control of electrolyte inventory in response to typical plant disturbances, such as reductions in steam header pressure and step changes in E&M feedrate.
机译：锌浸出厂中电解液存量的调节是一个挑战性的过程控制问题。本文提出了一种简单的全厂控制策略，以将电解和熔融（E＆M）进料罐的液位保持在操作员指定的上限。因此，在确保热段纯化热交换器的出口温度保持高于其下限的同时，使电解质的产量最大化，并使其他容器中的液位保持在所需范围内。此方法的基本原理是将吞吐量设置为一个值，该值将在接下来的M个小时的运行中消耗E＆M储罐中的备用容量。要调整策略，用户必须选择预测范围M以及工厂生产量的最大允许变化率。使用标准DCS功能可以轻松地对该算法进行编程，并且无需购买第三方优化软件。包括的仿真结果表明，该方法可响应典型的工厂干扰（例如降低蒸汽总管压力和E＆M进料速度的阶跃变化）提供高性能的电解质库存控制。

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