Minerals Engineering最新文献_第8页

Recovery of niobium and tantalum from tin slags: An alternative approach using acid roasting and oxalic leaching 从锡渣中回收铌和钽：酸焙烧和草酸浸的替代方法

IF 4.9 2区工程技术

Minerals Engineering Pub Date : 2025-06-28 DOI: 10.1016/j.mineng.2025.109564

Darwin Michell Cheje Machaca , Rosario Belen Juyo Salazar , Thamyres Cardoso de Carvalho , Denise Crocce Romano Espinosa , Jorge Alberto Soares Tenório

{"title":"Recovery of niobium and tantalum from tin slags: An alternative approach using acid roasting and oxalic leaching","authors":"Darwin Michell Cheje Machaca , Rosario Belen Juyo Salazar , Thamyres Cardoso de Carvalho , Denise Crocce Romano Espinosa , Jorge Alberto Soares Tenório","doi":"10.1016/j.mineng.2025.109564","DOIUrl":"10.1016/j.mineng.2025.109564","url":null,"abstract":"<div><div>An alternative approach for extracting Nb and Ta was investigated, based on the acid roasting of tin slags using the KHSO<sub>4</sub>-H<sub>2</sub>SO<sub>4</sub> system, followed by oxalic leaching. Roasting experiments demonstrated the formation of soluble sulfated products, optimized through thermodynamic modeling: mineral grain size fraction −75 µm, Slag-KHSO<sub>4</sub>-H<sub>2</sub>SO<sub>4</sub> ratio 1:0.5:0.5 (g:g:ml), roasting temperature 300 °C, and roasting time 2 h. Under these conditions, the material conversion rate was maximized, characterized by mineralogical and morphological analyses that showed the chemical changes occurring during roasting helped explain the mechanisms at work during the process. After optimizing the treatment parameters by varying process conditions, it was found that approximately 94 % of Nb and 75 % of Ta were dissolved during the oxalic leaching stage, under the following conditions: concentration 0.5 mol L<sup>−1</sup>, S/L ratio 50 g L<sup>−1</sup>, reaction temperature 60 °C for 60 min. Consequently, this innovative alternative could reduce reagent and energy consumption, promoting a sustainable approach with a lower environmental footprint.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109564"},"PeriodicalIF":4.9,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502325","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}

引用次数: 0

Selective depression of galena by tamarind seed gum during chalcopyrite flotation 罗望子胶对黄铜矿浮选过程中方铅矿的选择性抑制

IF 4.9 2区工程技术

Minerals Engineering Pub Date : 2025-06-27 DOI: 10.1016/j.mineng.2025.109554

Tichen Wang , Jiushuai Deng , Tianyu Cheng , Qiong Yin , Bozeng Wu , Mingzhen Hu , Ruofan Sun , Xincun Leng , Youyuan Yang

{"title":"Selective depression of galena by tamarind seed gum during chalcopyrite flotation","authors":"Tichen Wang , Jiushuai Deng , Tianyu Cheng , Qiong Yin , Bozeng Wu , Mingzhen Hu , Ruofan Sun , Xincun Leng , Youyuan Yang","doi":"10.1016/j.mineng.2025.109554","DOIUrl":"10.1016/j.mineng.2025.109554","url":null,"abstract":"<div><div>The similar flotation properties of chalcopyrite and galena pose significant challenges for their flotation separation. To address this, tamarind seed gum (TSG) was evaluated as an galena depressant with butyl xanthate (BX) as the collector in the flotation separation of chalcopyrite and galena. The depression mechanism of TSG on galena was investigated through flotation tests, contact angle measurements, zeta potential measurements, X-ray photoelectron spectroscopy (XPS) analyses, inductively coupled plasma optical emission spectrometer (ICP-OES) tests, Atomic force microscopy (AFM) tests and density functional theory (DFT) calculations. The flotation tests demonstrated that TSG had strong depression effect on galena under neutral condition. However, it slightly affected chalcopyrite flotation. The adsorption of TSG on the galena surface was confirmed through contact angle measurements, zeta potential measurements, XPS analyses. The ICP-OES tests revealed that TSG impeded the dissolution of Pb<sup>2+</sup> and improved its hydrophilicity. AFM tests demonstrated a pronounced augmentation in the adsorption affinity of TSG towards the galena surface as opposed to chalcopyrite, consequently hindering subsequent collector attachment onto galena. Density Functional Theory (DFT) calculations indicated the active hydroxyl groups in the polysaccharide structure of TSG have a strong interaction with lead hydroxide of galena surface, while exhibiting very low affinity for the lead hydroxide of galena surface. This study provides a theoretical basis for using TSG as an galena depressant in the flotation separation of galena from chalcopyrite.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109554"},"PeriodicalIF":4.9,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502328","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}

引用次数: 0

Utilization of entrainment for a gravity based recovery of ultrafine particles 利用夹带法对超细颗粒进行重力回收

IF 4.9 2区工程技术

Minerals Engineering Pub Date : 2025-06-27 DOI: 10.1016/j.mineng.2025.109520

Ruben M. Dewes, Britta Bor, Martin Rohde

{"title":"Utilization of entrainment for a gravity based recovery of ultrafine particles","authors":"Ruben M. Dewes, Britta Bor, Martin Rohde","doi":"10.1016/j.mineng.2025.109520","DOIUrl":"10.1016/j.mineng.2025.109520","url":null,"abstract":"<div><div>Ultrafine particle recovery poses a complicated challenge to be solved, due to the low collision efficiency with bubbles in flotation processes and a high recovery of gangue material by entrainment. As a result, losses of valuable metals occur. In the present work, a novel approach was chosen for the recovery of ultrafine particles. Instead of flotation, entrainment was used for a gravity based particle recovery. A 3D-printed particle collector was designed to recover the particles at the top of a bubble column. To obtain a good understanding about the density dependence of the process, SiO<sub>2</sub>, Ni and W particles were used to cover a density range of 2.65-19.28 g<span><math><mi>⋅</mi></math></span>cm<sup>-3</sup>. High recoveries were achieved for Ni (73 %) and W (59 %) particles. SiO<sub>2</sub> was only recovered in high amounts (<span><math><mo>≈</mo></math></span>50 %) when particle sizes exceeded <span><math><mrow><mn>10</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>. An extensive investigation of the flow regime was performed to gain an overview about the correlation in between flow regime and particle recovery results.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109520"},"PeriodicalIF":4.9,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502327","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}

引用次数: 0

Selective flotation separation of smithsonite and calcite using sodium dodecyl phosphonate as a collector: Flotation performance and adsorption characteristics 十二烷基膦酸钠作为捕收剂选择性浮选分离菱锌矿和方解石：浮选性能和吸附特性

IF 4.9 2区工程技术

Minerals Engineering Pub Date : 2025-06-27 DOI: 10.1016/j.mineng.2025.109533

Zehang Guo , Haiyang He , Peilun Shen , Rong Peng , Haiyun Xie , Dianwen Liu

{"title":"Selective flotation separation of smithsonite and calcite using sodium dodecyl phosphonate as a collector: Flotation performance and adsorption characteristics","authors":"Zehang Guo , Haiyang He , Peilun Shen , Rong Peng , Haiyun Xie , Dianwen Liu","doi":"10.1016/j.mineng.2025.109533","DOIUrl":"10.1016/j.mineng.2025.109533","url":null,"abstract":"<div><div>Smithsonite stands as a representative zinc oxide ore and is frequently found co − occurring with calcite. These two minerals possess similar physical and chemical characteristics, which consequently pose difficulties in their separation. To tackle the problem of separating smithsonite from calcite, this research employs sodium dodecyl phosphinate (NaDDP) as an effective and eco − friendly collector for the selective flotation of smithsonite and calcite. The obtained zinc concentrate features a Zn grade of 42.97 % and a recovery rate of 93.65 %, along with a Ca grade of 6.10 % and a recovery rate of 12.51 %, achieving an efficient flotation separation of the two minerals. Total Organic Carbon (TOC) analysis and Inductively Coupled Plasma (ICP) spectrometry reveal that a substantial amount of NaDDP is consumed by the Ca<sup>2+</sup> released from calcite, leading to a restricted effective adsorption capacity of the reagent on the mineral surface. Nevertheless, the solubility of smithsonite is lower than that of calcite, and the quantity of NaDDP consumed in the solution is small, whereas the amount of the reagent adsorbed on the mineral surface is large. X-ray Photoelectron Spectroscopy (XPS), Zeta potential, time − of − flight secondary ion mass spectrometry (ToF − SIMS), and Density Functional Theory (DFT) calculation and analysis demonstrate that the interaction ability of NaDDP with Zn sites is stronger than that with Ca sites. When both are present at the same time, NaDDP reacts preferentially with Zn. This gives rise to adsorption differences between the two minerals for this reagent, resulting in variations in flotation behavior.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109533"},"PeriodicalIF":4.9,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490110","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}

引用次数: 0

Extraction of lithium from cookeite-bearing claystone by chlorination roasting: From thermodynamic calculation to experimental practice 氯化焙烧法从含沸石粘土岩中提取锂：从热力学计算到实验实践

IF 4.9 2区工程技术

Minerals Engineering Pub Date : 2025-06-27 DOI: 10.1016/j.mineng.2025.109557

Ya Chen , Penghui Ping , Huoqiang Tang , Renlong Liang , Yongfeng Huang , Xilong Gu , Jiaqing Fan , Jiuqing Liu , Xichang Shi

{"title":"Extraction of lithium from cookeite-bearing claystone by chlorination roasting: From thermodynamic calculation to experimental practice","authors":"Ya Chen , Penghui Ping , Huoqiang Tang , Renlong Liang , Yongfeng Huang , Xilong Gu , Jiaqing Fan , Jiuqing Liu , Xichang Shi","doi":"10.1016/j.mineng.2025.109557","DOIUrl":"10.1016/j.mineng.2025.109557","url":null,"abstract":"<div><div>With the rapid increase in lithium consumption, extracting lithium from unusual lithium resources has attracted much attention. Herein, a lithium-bearing claystone sample was characterized to determine the existence state of lithium, and the thermodynamic and practical feasibility for extracting lithium from the claystone was evaluated. The analysis indicates that cookeite is the main independent lithium-containing phase in the claystone, which has an estimated Gibbs free energy of formation: −8283.7 + 1.586<em>T</em> (kJ·mol<sup>−1</sup>). Further thermodynamic calculation demonstrates that the chlorination roasting process using CaCl<sub>2</sub> as the chlorinating agent is suitable for lithium extraction from the claystone. The experiment results of chlorination roasting followed by water leaching show that under optimized conditions, the extraction efficiency of lithium can reach 84.17 %, and the obtained leaching liquor is suitable for lithium carbonate preparation. It is believed that these results will provide an avenue toward development of highly efficient processes for utilization of the unusual lithium resource.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109557"},"PeriodicalIF":4.9,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502326","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}

引用次数: 0

Deep learning-enabled semantic segmentation for high-accuracy fluid inclusions quantification in high-purity quartz 支持深度学习的语义分割，用于高纯度石英中高精度流体包裹体定量

IF 4.9 2区工程技术

Minerals Engineering Pub Date : 2025-06-27 DOI: 10.1016/j.mineng.2025.109569

Ting Fan , Zijie Ren , Qiankun Zhang , Zhi Liu , Hao Liu , Guocheng Lv

{"title":"Deep learning-enabled semantic segmentation for high-accuracy fluid inclusions quantification in high-purity quartz","authors":"Ting Fan , Zijie Ren , Qiankun Zhang , Zhi Liu , Hao Liu , Guocheng Lv","doi":"10.1016/j.mineng.2025.109569","DOIUrl":"10.1016/j.mineng.2025.109569","url":null,"abstract":"<div><div>Fluid inclusions content is critical factor affecting the suitability of quartz for high-purity processing. While conventional identification methods are typically non-quantitative, time-consuming and heavily reliant on expert knowledge, developing rapid and accurate methods for quantitatively assessing fluid inclusions is of great practical importance. This study proposes the use of semantic segmentation techniques to automate the process of identifying quartz fluid inclusions with four semantic segmentation models—U-Net, DeepLabV3+, PSPNet, and HRNet. Leveraging a comprehensive dataset comprising 17 quartz samples with 9,348 meticulously annotated microscopic images, our comparative analysis demonstrates HRNet’s superior performance in fluid inclusions segmentation, achieving a remarkable mean intersection over union (mIoU) score of 81.75%, and outstanding reliability. Furthermore, this model enables the calculation of the pixel ratio of quartz and its internal fluid inclusions, thus facilitating the automated quantitative detection of fluid inclusions. This work not only expedites the quartz fluid inclusions Segmentation process but also enhances reliability to effectively overcome technical barriers in high-purity quartz resource evaluation, providing a valuable AI-driven solution for the high purity quartz industry.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109569"},"PeriodicalIF":4.9,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490111","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}

引用次数: 0

ZnO/activated carbon composites based gas sensor for flotation gases detection 基于ZnO/活性炭复合材料的浮选气体传感器

IF 4.9 2区工程技术

Minerals Engineering Pub Date : 2025-06-26 DOI: 10.1016/j.mineng.2025.109562

Fangzheng Liu , Yongkang Chen , Lu Qiu , Zhaoyang Zhang , Shiyi Huang , Tianhao Liu , Xinyao Xie , Junwei Ke , Xiangxiang Chen , Yunfei Ouyang

{"title":"ZnO/activated carbon composites based gas sensor for flotation gases detection","authors":"Fangzheng Liu , Yongkang Chen , Lu Qiu , Zhaoyang Zhang , Shiyi Huang , Tianhao Liu , Xinyao Xie , Junwei Ke , Xiangxiang Chen , Yunfei Ouyang","doi":"10.1016/j.mineng.2025.109562","DOIUrl":"10.1016/j.mineng.2025.109562","url":null,"abstract":"<div><div>At present, there is still a lack of monitoring of the gases produced in the flotation process in mines. As these gases with low concentration are mainly produced by flotation reagents, and the single metal oxide semiconductor based gas sensors are difficult to meet the requirements of use. Activated carbon is a porous material that is cheap and widely available, which can make enough flotation gases adsorb on the surface of gas sensing materials and change the sensor’s conductivity obviously. In this work, ZnO/activated carbon composites were synthesized by a facile one-pot hydrothermal method. The crystal structure, morphology, nanosize and chemical composition of the samples were investigated by XRD, FESEM, TEM, Raman spectroscopy, XPS and BET, respectively. The results showed that the gas sensing materials based on ZnO/activated carbon composites were able to detect the flotation gases such as butyl xanthate and terpineol. The gas sensor based on ZnO/activated carbon (10/1.5) composite reached the best response value of 28.90 at 75 ℃ for 1 ppm butyl xanthate gas, 8.67 at 100 ℃ for 0.5 ppm terpineol gas, as well as good reproducibility, which is potential for practical detection of flotation gases.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109562"},"PeriodicalIF":4.9,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480917","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}

引用次数: 0

Influence of process variables on the operational capacity of an industrial vibrating screening 工艺变量对工业振动筛运行能力的影响

IF 4.9 2区工程技术

Minerals Engineering Pub Date : 2025-06-26 DOI: 10.1016/j.mineng.2025.109565

Vinícius Lara Sousa, Vinícius Pimenta Barbosa, Rafael Yuri Medeiros Barbosa, Rubens Gedraite, Marina Seixas Pereira, Cláudio Roberto Duarte

{"title":"Influence of process variables on the operational capacity of an industrial vibrating screening","authors":"Vinícius Lara Sousa, Vinícius Pimenta Barbosa, Rafael Yuri Medeiros Barbosa, Rubens Gedraite, Marina Seixas Pereira, Cláudio Roberto Duarte","doi":"10.1016/j.mineng.2025.109565","DOIUrl":"10.1016/j.mineng.2025.109565","url":null,"abstract":"<div><div>This study examines the key parameters influencing solid–liquid separation on an industrial vibrating screen. A screen with a 74 µm opening was employed to separate a suspension of sand particles (mean Sauter diameter of 288 µm) dispersed in a water phase containing smectite clay thickener. The independent variables investigated included screen inclination, feed flow rate, and vibration intensity (g-force). The responses evaluated were the moisture content of retained solids, the progression of the region predominantly occupied by the liquid phase (referred to as the pool region), and the level of the pool region on the screen. The results indicated that increasing g-force, increasing screen inclination, and reducing the feed flow rate contributed to a decrease in the advancement of the pool region. Regarding the pool region level, a reduction was observed with higher g-force, lower screen inclination, and decreased feed flow rate. For the moisture content of the retained solids, an increase was observed with higher feed flow rates. However, the effects of screen inclination and g-force on moisture content were opposing, as their interaction influenced the observed experimental outcomes. These effects were associated with the operational capacity of the vibrating screen, which demonstrated sufficient processing capability for up to 96 % screen occupancy by the pool region. Additionally, a linear relationship was observed between the advancement of the pool region and its level at constant screen inclination values.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109565"},"PeriodicalIF":4.9,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490060","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}

引用次数: 0

Improving copper sulfides liberation using pulse power comminution (PPC). Application to Escondida hard ore deposit 利用脉冲功率粉碎（PPC）提高硫化铜析出率。应用于埃斯康迪达硬矿床

IF 4.9 2区工程技术

Minerals Engineering Pub Date : 2025-06-26 DOI: 10.1016/j.mineng.2025.109570

J. Guignard, J. Brousseau, M. Siguier, R. Pecquois

{"title":"Improving copper sulfides liberation using pulse power comminution (PPC). Application to Escondida hard ore deposit","authors":"J. Guignard, J. Brousseau, M. Siguier, R. Pecquois","doi":"10.1016/j.mineng.2025.109570","DOIUrl":"10.1016/j.mineng.2025.109570","url":null,"abstract":"<div><div>High Pulse Power (HPP) has been developed for mining applications (comminution) in the late 70s-early 80s <em>(Andres., 1989</em>). The main principle of HPP is compressing a slowly stored energy (ms-s) that is delivered quickly (<10 µs) in order generate a peak of electric power. This later is then transmitted in a media chamber to create an electric arc and shockwaves that pulverize rocks. Based on these assumptions, using I-ROX HPP technologies, different experimental procedures (PPC) have been developed to investigate the selective liberation of copper sulfides minerals from Escondida hard ore deposit (partnership with BHP) using SEM automated mineralogy (SEM-MLA-<em>AMICS</em>). Results have been compared with conventional comminution (CC) (crushing (C-for coarse) and grinding (F- for fine)) and with initial texture of the deposit. In all PPC experiments, liberation in coarser sizes is better than in CC. During coarse crushing, a stronger Cu enrichment is observed in the fine particles created by PPC than that by CC. Other results from fine grinding show that overgrinding can be prevented, resulting in better liberation in the floatable sizes. Overall, results show 10 % increase of highly liberated particles in F-PPC compared to F-CC, most likely implying that copper recovery after rougher flotation could be equivalent/better to CC at bigger/similar particle size, respectively.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109570"},"PeriodicalIF":4.9,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480787","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}

引用次数: 0

Multi-rate data-driven model predictive control for ball mill grinding process 球磨机磨矿过程多速率数据驱动模型预测控制

IF 4.9 2区工程技术

Minerals Engineering Pub Date : 2025-06-25 DOI: 10.1016/j.mineng.2025.109535

Wei Dai , Qian Tian , Yi-Zhuo Yang

{"title":"Multi-rate data-driven model predictive control for ball mill grinding process","authors":"Wei Dai , Qian Tian , Yi-Zhuo Yang","doi":"10.1016/j.mineng.2025.109535","DOIUrl":"10.1016/j.mineng.2025.109535","url":null,"abstract":"<div><div>Industrial Internet of Things (IIoT) is widely used in ball mill grinding process to meet the intelligent requirements of production process. Through massive data collection and analysis, the Industrial Internet of Things has significantly improved production quality and enhanced economic efficiency. However, the introduction of more and more sensors with different sampling periods results in the multi-rate control problem. Meanwhile, the complex working conditions of the grinding process cause persistent changes in model parameters. To solve these problems, a multi-rate data-driven model predictive control algorithm is proposed in this paper. A multi-rate Hankel matrix is first designed according to the characteristics of sampling periods. Then the future data are predicted by using Willems fundamental lemma. A correction term is added to the data-driven model predictive controller to obtain offset-free tracking. Finally, experiments have been carried out to verify the effectiveness of the proposed method. This method offers a new approach for solving the multi-rate and time-varying problems in grinding process, and is expected to be implemented in practical mining scenarios.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"232 ","pages":"Article 109535"},"PeriodicalIF":4.9,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144471071","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}

引用次数: 0