真空黑箱可视化的新方法：真空蒸馏过程中铅银合金流场的模拟与实验分析

IF 3.9 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Vacuum Pub Date : 2025-09-11 DOI:10.1016/j.vacuum.2025.114734

Jiahao Dong , Jiapeng Zhang , Meiying Zhang , Lingxin Kong , Baoqiang Xu , Bin Yang , Yuxu Bao

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引用次数: 0

摘要

随着矿产资源的不断减少，从次生资源中回收银、铅势在必行。真空冶金是一种重要的金属回收方法。真空炉是一个“黑盒子”，流场是模糊的，阻碍了金属的有效提取。采用模拟和实验相结合的方法对1073 ~ 1273 K的铅银合金蒸馏过程进行了研究。结果表明，在本文研究的温度范围内，可以有效地模拟金属蒸汽的挥发和冷凝过程。模拟结果与实验数据非常吻合，显示挥发速率偏差≤12%。根据模拟结果，可以快速确定收集Pb的冷凝塔板位置，从而收集更多、更纯的Pb。本研究建立的合金体系流场仿真模型可靠，可用于可视化真空炉，指导合金的真空分离，从而提高金属的直接收率和纯度。该方法可用于指导工业上新型真空冶金技术和设备的开发，大大减少了实验探索次数，节省了时间，降低了成本。

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A novel method for visualizing vacuum black box: Simulation and experimental analyses on flow field of Pb-Ag alloy in vacuum distillation

With the continuous reduction of mineral resources, it is imperative to recover Ag and Pb from secondary resources. Vacuum metallurgy is an important metal recovery method. The vacuum furnace is a ' black box ', and the flow field is blurred, which hinders the efficient extraction of metals. This study investigates Pb-Ag alloy distillation (1073–1273 K) through coupled simulations and experiments. The results show that the volatilization and condensation of metal vapor can be effectively simulated in the temperature range of this study. Simulations demonstrated strong agreement with experimental data, showing ≤12 % deviation in volatilization rates. The position of the condensation tray for collecting Pb can be quickly determined based on the simulation results, so as to collect more and purer Pb. The simulation model for flow field of alloy system established in this study is reliable and can be used to visualize vacuum furnace and guide the vacuum separation of alloys, thereby improving metal direct yield and purity. This method can be used to guide the development of new vacuum metallurgy technologies and equipment in industry, greatly reducing the number of experimental explorations, saving time, and reducing costs.

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来源期刊

Vacuum 工程技术-材料科学：综合

CiteScore

6.80

自引率

17.50%

发文量

审稿时长

34 days

期刊介绍： Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below. The scope of the journal includes: 1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes). 2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis. 3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification. 4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.