Minerals Engineering最新文献

{"title":"Enhancing the flotation performances of molybdenite fines relied on the synergistic interface regulation of faces and edges","authors":"Siyi Li ,&nbsp;Bingqiao Yang ,&nbsp;Yudi Yan ,&nbsp;Jie Wu ,&nbsp;Yang Xu ,&nbsp;Bing Deng ,&nbsp;Feifei Jia","doi":"10.1016/j.mineng.2025.109579","DOIUrl":"10.1016/j.mineng.2025.109579","url":null,"abstract":"<div><div>The flotation of molybdenite particles smaller than 20 μm is inefficient primarily due to the reduction in overall hydrophobicity as particle size decreases. However, previous studies mainly focused on interfacial regulation of molybdenite faces or edges individually, resulting in unsatisfactory recovery and high collector consumption. In this work, an attempt was made to regulate the interfacial properties of both faces and edges synchronously to achieve highly efficient beneficiation of molybdenite fines utilizing a new compound collector consisting of emulsified kerosene and fatty alcohol polyoxyethylene ether phosphate (AEOP). The flotation results demonstrated that the compound collector was more superior than single collector in flotation, which promoted the flotation recovery greatly compared to emulsified kerosene or AEOP. In addition, the synergistic effect of kerosene and AEO-3P was much stronger than that of kerosene and AEO-9P. The results of zeta potential, electrochemical tests and scanning electron microscopy energy dispersive spectrometer (SEM-EDS) indicated that AEOP species preferentially adsorbed on edges, which enhanced the adsorption of emulsified kerosene droplets on edges via intermolecular interactions. Moreover, a portion of AEOP combined with kerosene droplets adsorbed on the molybdenite faces. X-ray photoelectron spectroscopy (XPS) results suggested that the phosphoric acid groups in AEOP bonded with Mo sites on edges. The contact angle results further confirmed that the compound collector synergistically acted on both faces and edges to improve its hydrophobicity. This work provides an innovative perspective to design effective compound collector for the flotation of molybdenite fines in future.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109579"},"PeriodicalIF":4.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid tailings dewatering by flocculation-sedimentation-filtration-microwave sequential treatment","authors":"Daowei Wang ,&nbsp;Filipe S. Araujo ,&nbsp;Cate MacKenzie ,&nbsp;Jashkumar Ukani ,&nbsp;Abu Junaid ,&nbsp;Givemore Sakuhuni ,&nbsp;Xiaoli Tan ,&nbsp;Qi Liu","doi":"10.1016/j.mineng.2025.109561","DOIUrl":"10.1016/j.mineng.2025.109561","url":null,"abstract":"<div><div>Achieving low-water-content oil sands fluid fine tailings (FFT) for reclamation is a significant challenge, even with the otherwise effective dewatering methods such as pressure filtration. FFT from mineable oil sands processing comprises high concentrations of clays,which impede its dewatering. This study established a classification of the dominant forms of water in oil sands tailings, namely free water (FW), interstitial pore water (IPW), vicinal pore water (VPW), and surface-bound water (SBW), based on the ease of their removal in dewatering. Most FW and IPW could be removed by sedimentation and filtration following chemical treatment with polymeric flocculants and coagulants. However, removing the VPW and SBW by mechanical dewatering methods was very challenging. Microwave heating was found to be an effective alternative to remove part of the VPW and SBW from filtered FFT or to facilitate subsequent water removal treatment by other less energy-intensive methods, such as air drying. Based on these findings, we propose a concept of an oil sands tailings dewatering process for targeted removal of different forms of water by specific methods. It consists of a sequential chemical treatment of FFT with a flocculant and coagulant, followed by gravity sedimentation and vacuum filtration to remove FW and IPW, generating 50–55 wt% solids filter cakes. This is followed by a microwave treatment with or without subsequent air drying to partially remove the VPW and SBW, achieving ≥65 wt% solids in filter cakes that would be ready for preliminary reclamation activities.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109561"},"PeriodicalIF":4.9,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144524160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking the potential of sustainable bioleaching: evaluating microbially induced metal recovery in copper-bearing black shales","authors":"Mateusz Wolszczak ,&nbsp;Anna Potysz ,&nbsp;Grzegorz P. Lis ,&nbsp;Ariel Wojciuszkiewicz ,&nbsp;Marcin Siepak","doi":"10.1016/j.mineng.2025.109555","DOIUrl":"10.1016/j.mineng.2025.109555","url":null,"abstract":"<div><div>Some of deposits parameters, such as lower grade or peculiar composition (i.e. refractory phases, organic compounds) hinder their effective processing for metal recovery. However, bioleaching-based methods could support metal extraction from materials showing either poor metal content or complex mineralogy. In this study, two distinctly different samples of Kupferschiefer shale (LG – with low copper content, HG – organic-rich with high copper content) were examined in terms of metal bioleaching using two bacteria: <em>Acidithiobacillus thiooxidans</em> and <em>Pseudomonas fluorescens</em>. For LG sample, activity of <em>P. fluorescens</em> supports high extraction of Cu and Mo, while <em>A. thiooxidans</em> supports As extraction. For HG sample, activity of <em>A. thiooxidans</em> and <em>P. fluorescens</em> resulted in poor copper recovery of 1.8% and 7.26%, respectively. Alteration on shale surfaces were specific to the applied microorganism, revealing different features of post-leaching sulfides.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109555"},"PeriodicalIF":4.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144524159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimising SAG mill throughput and circulating load using machine learning models: A multi-objective approach for identifying optimal process parameters","authors":"Zahra Ghasemi ,&nbsp;Mehdi Neshat ,&nbsp;Chris Aldrich ,&nbsp;Max Zanin ,&nbsp;Lei Chen","doi":"10.1016/j.mineng.2025.109551","DOIUrl":"10.1016/j.mineng.2025.109551","url":null,"abstract":"<div><div>Grinding is a fundamental operation in mineral processing plants. Semi-autogenous grinding (SAG) mills are widely utilised in these circuits. Enhancing SAG mill throughput is crucial due to its significant financial impact. However, controlling the mill discharge particle size is also essential. If the discharge particles are oversized, a substantial portion of the SAG mill output is recirculated to pebble crushers. Therefore, the challenge addressed in this research is how to set controllable process parameters to achieve both maximum mill throughput and minimum circulating load. This research addresses the problem by formulating it as a constrained multi-objective optimisation problem. An industrial dataset, consisting of 66,776 records is utilised. Initially, three gradient boosting methods including CatBoost, XGBoost, and HGBM are compared for modelling both objectives. The most precise prediction models are subsequently employed within four multi-objective optimisation algorithms consisting of NSGA-II, MOEA/D, RVEA, and SPEA2. The comparative results indicated that CatBoost is the best-performing prediction model with an average <span><math><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> of 0.9304 and 0.9031 for mill throughput and circulating load, respectively. NSGA-II is also identified as the best-performing optimiser, achieving the highest average hypervolume of 291,489. A sensitivity analysis demonstrated how changes in input features affect objectives and confirmed the robustness of the optimal solutions. By analysing the top-performing solutions, recommendations for process parameter setting are provided. Additionally, the advantage of the developed framework in this research is providing a set of Pareto-optimal solutions, allowing experts to select the most suitable settings based on real-time process conditions.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109551"},"PeriodicalIF":4.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potential for hydroxamic acid modification via electronic effect: A case study of enhanced cassiterite flotation","authors":"Zhifeng Zhang ,&nbsp;Yao Yu ,&nbsp;Junhao Fu ,&nbsp;Jian Cao ,&nbsp;Chaozheng Deng ,&nbsp;Wei Sun ,&nbsp;Haisheng Han","doi":"10.1016/j.mineng.2025.109582","DOIUrl":"10.1016/j.mineng.2025.109582","url":null,"abstract":"<div><div>Despite the selectivity highlighting, the improvement of collecting capacity of hydroxamic acids remains a significant challenge. In this study, commencing from the electronic effect and based on the benzohydroxamic acid (BHA) skeleton, three novel hydroxamic acids, anisohydroxamic acid (AHA), cinnamohydroxamic acid (CHA), and p-methoxy cinnamohydroxamic acid (PHA), were designed and synthesized via double-bond extension and the introduction of a para-methoxy group. Taking cassiterite as the research subject, the impact of hydroxamic acids with enhanced electronic effect on the collecting performance was explored. Results of single-mineral flotation tests indicated that, with identical dosages, the cassiterite recovery decreased in the following order: PHA &gt; CHA &gt; AHA &gt; BHA, aligning with the prediction derived from quantum chemical properties. Subsequent investigation revealed that the methoxy group of AHA not only served as an electron-donating moiety, conducting electrons to the functional hydroxamic acid group via the conjugated system of benzene ring, but also significantly enhance the hydrophobic property of the collector, as evidenced by the contact angle tests. Besides, FTIR and XPS analysis suggested that the incorporation of unsaturated bonds within CHA boosted its adsorption intensity at the Sn⁴⁺ active sites, benefiting from the extended conjugation effect. AFM imaging confirmed the above conclusions and determined that PHA, featuring both double bond and para-methoxy group, emerged as a preferable collector for cassiterite. In contrast to BHA, PHA, acting as a bidentate ligand, exhibited a more compact adsorption configuration on cassiterite (110) plane, accompanied by a significantly lower adsorption energy. Collectively, the hydroxamic acid modification strategy grounded in electronic effect proved to be highly efficient and viable, offering substantial potential for enhancing the flotation performance of refractory oxidized ores.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109582"},"PeriodicalIF":4.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of technologies to extract lithium from hard rock lithium minerals","authors":"Mingliang Yang ,&nbsp;Yuncheng Zhong ,&nbsp;Xuefeng Liu ,&nbsp;Shichao Wang ,&nbsp;Tao Qu","doi":"10.1016/j.mineng.2025.109577","DOIUrl":"10.1016/j.mineng.2025.109577","url":null,"abstract":"<div><div>Lithium (Li) is becoming increasingly important for energy applications driven by rapid advancements in lithium-ion battery technologies, the move toward vehicle electrification, and increasing demands for grid energy storage systems. Although brine deposits are the main lithium source, the role of lithium-bearing minerals for producing lithium salts is expanding because of their widespread availability and historical market establishment. Methods of extracting lithium from ores fall into five key categories: acid leaching, alkaline leaching, salt roasting, pressure leaching, and chlorination roasting. Sulfuric acid leaching is particularly efficient for processing spodumene ores and is expected to maintain its lead amongst extraction techniques that use spodumene as the primary raw material. Additionally, a technique combining sulfuric and hydrofluoric acid has shown potential for lowering energy consumption compared with the conventional sulfuric acid process, but this benefit must be carefully weighed against the environmental and operational impacts of the use of fluorides. Pressure leaching has proven especially effective for treating lepidolite and has achieved high recovery rates of lithium and valuable by-products such as rubidium and cesium, yielding high-purity products. Although this method has advanced to.</div><div>commercial production, it is still under development and requires further research to improve its performance. Chlorination roasting is an alternative lithium extraction method that can directly process a variety of lithium ores with a high extraction efficiency. Despite substantial research dedicated to chlorination roasting, further studies are essential to determine its economic feasibility, environmental sustainability, and operational safety.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109577"},"PeriodicalIF":4.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distribution and washing of residual ammonia nitrogen from soils of ionic rare earth mine after in-situ leaching","authors":"Yiting Zeng ,&nbsp;Hui Qiu ,&nbsp;Xinyi Xie ,&nbsp;Caigui Luo ,&nbsp;Ming Chen ,&nbsp;Chunying Wang","doi":"10.1016/j.mineng.2025.109578","DOIUrl":"10.1016/j.mineng.2025.109578","url":null,"abstract":"<div><div>Ionic rare earth mining mainly employs in-situ leaching process with ammonium sulphate serving as the primary early leaching agent, and causes substantial ammonia nitrogen (AN) pollution in the mine area and surrounding environment. The distribution of AN is significantly influenced by the size of soil particles, yet little is known about how residual AN is washed out from different size of soil particles. In this study, soil samples were collected from multiple depths at an in-situ leaching mining area of ionic rare earth and subsequently fractionated into five particle size classes (&gt;2 mm, 2–1 mm, 1–0.25 mm, 0.25–0.075 mm, and &lt; 0.075 mm) for systematic analysis. Key takeaways include that finer soil particles exhibit higher AN accumulation, showing strong correlation with clay mineral content. In the cup washing experiment, the larger the particle size of the soil AN was basically removed, the highest washing rate was up to 96 %, while the smallest particle size soil was essentially maintained at 65 % to 70 %; Column washing experiments further demonstrated that AN removal efficiency increased with decreasing particle size, indicating that finer soil particles released more AN when treated with equivalent amounts of washing agent. Moreover, calcium lignosulfonate exhibited significantly superior washing performance compared to water, removing approximately 73 % of AN from the finest soil particles, whereas water achieved only 23 % removal efficiency. Importantly, calcium lignosulfonate washing generates minimal secondary pollution to soil and can even enhance soil stability and fertility to some extent. Analysis of mixed soil washing revealed that water soluble (85 %) and exchangeable ammonium (52 %) were the dominant removable fractions under natural rainfall conditions, representing the primary sources of environmental AN pollution. These findings underscore the effectiveness of particle size-based separation combined with chemical washing for optimizing AN remediation—simultaneously improving removal efficiency and enabling resource recovery. This study provides significant information for analyzing the effects of soil particle size on the distribution of AN and its release, as well as providing theoretical research on the management mechanism and pollution prevention of residual AN in in-situ leaching mine soils.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109578"},"PeriodicalIF":4.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced hydrogen-based reduction of hematite by bastnaesite: Kinetics and microstructural evolution mechanisms","authors":"Lingbo Zhao ,&nbsp;Peng Gao ,&nbsp;Bing Zhao ,&nbsp;Zhenyue Zhang ,&nbsp;Xiangyan Kong ,&nbsp;Yuexin Han ,&nbsp;Yanjun Li","doi":"10.1016/j.mineng.2025.109574","DOIUrl":"10.1016/j.mineng.2025.109574","url":null,"abstract":"<div><div>To investigate the hydrogen-based reduction mechanism of the polymetallic Bayan Obo hematite, this study utilized pure hematite and bastnaesite minerals to conduct fundamental kinetic research on the hydrogen reduction process of hematite influenced by bastnaesite, Isothermal reduction experiments were conducted under controlled hydrogen atmospheres, followed by kinetic modeling to elucidate reaction parameters, while phase and microstructural evolution were revealed through XRD, SEM, and BET analyses. Kinetic models were applied to compare the hydrogen reduction kinetics of pure Bayan Obo hematite and its mixture with bastnaesite, highlighting the promoting effect of bastnaesite on the reaction rate. Results show that bastnaesite accelerates the reduction process and reduces the apparent activation energy (<em>E_α</em>). X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) surface area analysis were employed to examine phase transformation and microstructural evolution process. XRD revealed that bastnaesite promotes the efficient conversion phenomenon of hematite to magnetite. SEM images showed that bastnaesite enhances crack and pore formation and development in hematite particles. BET analysis confirmed that bastnaesite increases the surface area of the reduction products. These results not only reveal the promoting effect of bastnaesite on the hydrogen-based reduction of hematite, but also suggest its potential application in low-carbon metallurgical processes involving rare earth minerals. With hydrogen-based reduction technologies advancing, rare earth minerals are expected to play a key role in efficient, cleaner steel production, contributing to the green transformation of metallurgy.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109574"},"PeriodicalIF":4.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The development of process-based techno-economic models for the assessment of critical minerals recovery from bitumen extraction tailings","authors":"M. Baritto,&nbsp;A. Kumar","doi":"10.1016/j.mineng.2025.109583","DOIUrl":"10.1016/j.mineng.2025.109583","url":null,"abstract":"<div><div>Critical minerals such as zircon and titanium are essential for the development of a low-carbon economy, with increasing demand driven by advancements in renewable energy technologies. Bitumen extraction tailings, specifically from froth treatment operations, represent an underused source of these minerals. This study presents a techno-economic assessment of recovering zircon and titanium from bitumen froth treatment tailings (FTT). The process has two stages: heavy mineral concentration and separation. In the first stage, tailings undergo desliming, flotation, and solvent extraction to concentrate heavy minerals. In the second stage, the concentrate is separated into zircon, rutile, ilmenite, and leucoxene using flotation, gravity, electrostatic, and magnetic techniques. A data-intensive process model was developed to calculate material and energy balances, equipment sizes, capital and operating costs, and internal rate of return (IRR). A plant processing 15.5 million tonnes of tailings annually can recover 157,000 tonnes of heavy minerals, generating an IRR of 9.8% at current market prices for zircon and rutile. Separating the process into two stages results in an IRR of 7.6%, with capacity and zircon price being the most influential factors. Sensitivity analysis shows that the IRR could range from 6.9% to 11.5% depending on input uncertainties. This study provides valuable insights for stakeholders interested in the economic potential of recovering critical minerals from bitumen extraction waste, supporting the circular economy and energy transition goals.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109583"},"PeriodicalIF":4.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144521542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In-depth analysis of the dynamic features and screening performance of high-elasticity projection vibrating screen","authors":"Jiale Yuan ,&nbsp;Long Huang ,&nbsp;Runyu Liu ,&nbsp;Yuqing Feng ,&nbsp;Tao Huang ,&nbsp;Chenlong Duan ,&nbsp;Haishen Jiang","doi":"10.1016/j.mineng.2025.109558","DOIUrl":"10.1016/j.mineng.2025.109558","url":null,"abstract":"<div><div>With the increasingly stringent requirements of industrial production on the particle size of the material, dry depth screening technology came into being. In order to further realize effective separation and efficient classification of fine-grained coal, a new high-elasticity screen surface equipped with additional striking shaft was designed in this paper. The performance of vibrating screen was explored by combining theoretical modeling, vibration testing, numerical simulation, and screening tests. The dynamical model of the vibrating screen was established using concentrated mass method, showing that the equipment underwent a linear motion of low vibration intensity perpendicular to the screen surface. The trajectories of the machine and the striking shaft under different excitation parameters obtained from the vibration test showed regular straight lines, and the relative errors between the theoretical and actual displacements were controlled within 3 %. The dynamics of an elastic screen surface of a four-sided simply supported shaft was built, and expression for its transient steady-state response to an impact was derived. Vibration tests showed that the spatial trajectory of the screen surface was relatively chaotic, but the maximum acceleration could be as high as 304.61 m/s², and the displacement reached 30.31 mm, which promoted the movement of particles with high ejection intensity. In contrast, the elastic screen surface under simulation exhibited hysteresis and nonlinearity, and the excitation parameters significantly affected the contact stresses and forces, with significant peaks in stresses and contact forces at <em>L</em> = 7.5 cm and <em>f</em> = 11.4 Hz, and the largest displacements and penetrations generated at point P1. Additionally, 3 mm classification tests were carried out for sticky-wet materials with different excitation forces, frequencies and shaft distance to optimize the processing parameters, and it was found that when <em>F</em> = 19 kN, <em>f</em> = 12.0 Hz, <em>Δl</em> = −0.5 and <em>k_l</em> = 0.938, the screening efficiency was up to 92.45 % and the total mismatched content was only 4.78 %. The paper discussed the relationship between additional striking shafts, elastic screen surfaces, and classification effects, aiming to provide theoretical and technical guidance for elastic screening equipment.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109558"},"PeriodicalIF":4.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}