Advanced Powder Technology最新文献

英文中文

DEM study of the shear behavior at the nodular pile-cemented soil interface in static drill-rooted nodular pile 静力钻孔桩桩-水泥土界面剪切特性的DEM研究

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-01-01 Epub Date: 2025-12-24 DOI: 10.1016/j.apt.2025.105157

Yu-liang Yan , Bang-long Xie , Peng-yuan Zhao , Yong-chao Liu , Bi-sheng Xu

The bearing capacity of static drill-rooted nodular piles (SDRN) can be significantly affected by the load transfer and failure modes at the nodular pile-cemented soil interface. This study conducted a series of three-dimensional nodular pile-cemented soil interface shear tests, and the corresponding numerical models were established using the continuum-discrete coupling method. The evolution of the shear behavior of the nodular pile-cemented soil interface was analyzed, and the effects of nodular pile node angle and width on the interface shear characteristics were investigated. The results indicate that the increase of the node angle not only reduces the interface bonding force, but also weakens the interlocking effect between the node and cemented soil. Increasing the node width within a certain range can significantly improve the interface shear resistance and deformation coordination by enhancing the mechanical interlocking effect and optimizing the stress transfer path. However, excessive increase of node width leads to intensified stress concentration within the cemented soil, resulting in a decrease in peak shear resistance. Finally, a nonlinear mechanical behavior model is proposed for the nodular pile-cemented soil interface. This study provides technical guidance for the design and application of SDRN piles in engineering.

静力钻孔根桩的承载能力受到桩-水泥土界面荷载传递和破坏模式的显著影响。本研究进行了一系列三维结节桩-水泥土界面剪切试验，并采用连续-离散耦合方法建立了相应的数值模型。分析了结桩-水泥土界面抗剪特性的演变过程，研究了结桩节点角度和宽度对界面抗剪特性的影响。结果表明：节点角度的增大不仅降低了界面结合力，而且削弱了节点与胶结土之间的联锁效应；在一定范围内增加节点宽度可以通过增强机械联锁效应和优化应力传递路径，显著提高界面抗剪能力和变形协调性。而节点宽度的过大增大，则会导致胶结土内部应力集中加剧，峰值抗剪能力下降。最后，建立了桩-水泥土界面的非线性力学行为模型。本研究为SDRN桩在工程中的设计和应用提供了技术指导。

{"title":"DEM study of the shear behavior at the nodular pile-cemented soil interface in static drill-rooted nodular pile","authors":"Yu-liang Yan , Bang-long Xie , Peng-yuan Zhao , Yong-chao Liu , Bi-sheng Xu","doi":"10.1016/j.apt.2025.105157","DOIUrl":"10.1016/j.apt.2025.105157","url":null,"abstract":"<div><div>The bearing capacity of static drill-rooted nodular piles (SDRN) can be significantly affected by the load transfer and failure modes at the nodular pile-cemented soil interface. This study conducted a series of three-dimensional nodular pile-cemented soil interface shear tests, and the corresponding numerical models were established using the continuum-discrete coupling method. The evolution of the shear behavior of the nodular pile-cemented soil interface was analyzed, and the effects of nodular pile node angle and width on the interface shear characteristics were investigated. The results indicate that the increase of the node angle not only reduces the interface bonding force, but also weakens the interlocking effect between the node and cemented soil. Increasing the node width within a certain range can significantly improve the interface shear resistance and deformation coordination by enhancing the mechanical interlocking effect and optimizing the stress transfer path. However, excessive increase of node width leads to intensified stress concentration within the cemented soil, resulting in a decrease in peak shear resistance. Finally, a nonlinear mechanical behavior model is proposed for the nodular pile-cemented soil interface. This study provides technical guidance for the design and application of SDRN piles in engineering.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105157"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836928","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

Simulation of the biomass pyrolysis process of cubic particles in a fluidized bed using the superquadric method 用超二次法模拟立方颗粒在流化床中的生物质热解过程

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-01-01 Epub Date: 2025-12-05 DOI: 10.1016/j.apt.2025.105144

Haoyuan Li , Jiajie Sun , Jun Xie , Xuejiao Liu , Xiaole Chen , Miaomiao Niu

Most biomass particles exhibit non-spherical geometries, while their thermochemical conversion mechanisms remain insufficiently understood. This study extends the CFD-DEM framework through incorporation of the superquadric method to investigate cubic biomass particle pyrolysis in fluidized beds, with an isotropic shrinkage model developed to describe particle size evolution. Following model validation, the typical particle-scale characteristics including trajectory, velocity, temperature, and size distribution are analyzed. Notably, biomass particles demonstrate greater bed height compared to sand particles due to differences in density and size variation.

The parametric investigation examined the effects of bed temperature, gas velocity, and particle size distribution on flow and reactive characteristics. Results indicate that both gas velocity and bed temperature significantly influence particle hydrodynamics, while particle size distribution shows negligible effects. Elevated bed temperatures substantially enhance particle heating rates, shrinkage behavior, mass loss, and component conversion efficiency. Product composition analysis reveals that higher temperatures promote light gas formation while suppressing tar and char yields, with gas velocity and particle size distribution demonstrating minimal impact on composition. These findings provide fundamental insights into non-spherical biomass particle behavior in fluidized bed systems.

大多数生物质颗粒表现出非球形几何形状，而它们的热化学转化机制仍然不充分了解。本研究扩展了CFD-DEM框架，通过引入超二次方法来研究立方生物质颗粒在流化床中的热解，并建立了一个各向同性收缩模型来描述颗粒尺寸的演变。在模型验证之后，分析了典型的颗粒尺度特征，包括轨迹、速度、温度和尺寸分布。值得注意的是，由于密度和尺寸变化的差异，生物质颗粒比砂粒表现出更高的床层高度。参数化研究考察了床层温度、气速和粒度分布对流动和反应特性的影响。结果表明，气速和床层温度对颗粒流体力学有显著影响，而粒径分布对颗粒流体力学的影响可以忽略不计。升高的床层温度大大提高了颗粒的加热速率、收缩行为、质量损失和组分转换效率。产品成分分析表明，较高的温度促进轻气的形成，同时抑制焦油和炭的产率，气体速度和粒度分布对成分的影响最小。这些发现为非球形生物质颗粒在流化床系统中的行为提供了基本的见解。

{"title":"Simulation of the biomass pyrolysis process of cubic particles in a fluidized bed using the superquadric method","authors":"Haoyuan Li , Jiajie Sun , Jun Xie , Xuejiao Liu , Xiaole Chen , Miaomiao Niu","doi":"10.1016/j.apt.2025.105144","DOIUrl":"10.1016/j.apt.2025.105144","url":null,"abstract":"<div><div>Most biomass particles exhibit non-spherical geometries, while their thermochemical conversion mechanisms remain insufficiently understood. This study extends the CFD-DEM framework through incorporation of the superquadric method to investigate cubic biomass particle pyrolysis in fluidized beds, with an isotropic shrinkage model developed to describe particle size evolution. Following model validation, the typical particle-scale characteristics including trajectory, velocity, temperature, and size distribution are analyzed. Notably, biomass particles demonstrate greater bed height compared to sand particles due to differences in density and size variation.</div><div>The parametric investigation examined the effects of bed temperature, gas velocity, and particle size distribution on flow and reactive characteristics. Results indicate that both gas velocity and bed temperature significantly influence particle hydrodynamics, while particle size distribution shows negligible effects. Elevated bed temperatures substantially enhance particle heating rates, shrinkage behavior, mass loss, and component conversion efficiency. Product composition analysis reveals that higher temperatures promote light gas formation while suppressing tar and char yields, with gas velocity and particle size distribution demonstrating minimal impact on composition. These findings provide fundamental insights into non-spherical biomass particle behavior in fluidized bed systems.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105144"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145682958","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

Study on flow characteristics of pulverized coal in eccentrically bent coal hopper 偏心弯曲煤斗内煤粉流动特性研究

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-01-01 Epub Date: 2025-11-27 DOI: 10.1016/j.apt.2025.105132

Yanni Jiang , Tengfei Ma , Yong Wu , Zhihui Zheng , Xiaoming Zhou

Particle blockage is a persistent issue during the discharge of coal bunkers. To achieve stable and rapid discharge, an eccentrically bent hopper is proposed, and this structure combines the advantages of both curved and eccentric hoppers. This paper employs Discrete Element Method (DEM) to investigate the discharge characteristics of eccentrically bent hoppers with semi-vertex angles ranging from 15° to 75°. The results show that when the semi-vertex angle exceeds 45°, the average mass flow rate of pulverized coal does not change significantly with semi-vertex angle, and the velocity distribution of coal particles during discharge exhibits an asymmetric pattern. In contrast, when the semi-vertex angle is less than 45°, the average mass flow rate increases obviously as the semi-vertex angle decreases, and the asymmetry of velocity distribution during discharge is reduced. Furthermore, the stability of coal particle discharge with respect to the semi-vertex angle is analyzed using the coefficient of variation (C_v) over both the stable discharge period and the entire discharge process. When semi-vertex angle is greater than 45°, the discharge stability of pulverized coal is relatively poor. As semi-vertex angle is less than 45°, the C_v remains at a stable value, indicating smooth and stable discharge of pulverized coal.

颗粒堵塞是煤仓排放过程中一个长期存在的问题。为了实现稳定、快速的出料，提出了一种偏心弯曲料斗结构，该结构结合了弯曲料斗和偏心料斗的优点。本文采用离散元法（DEM）研究了半顶角为15°~ 75°的偏心弯曲料斗的出料特性。结果表明：当半顶角大于45°时，煤粉的平均质量流量随半顶角的变化不明显，出料过程中煤粉颗粒的速度分布呈不对称分布；当半顶角小于45°时，随着半顶角的减小，平均质量流量明显增大，降低了流量分布的不对称性。在此基础上，利用稳定排放周期和整个排放过程的变异系数（Cv）分析了半顶角下煤粒排放的稳定性。当半顶角大于45°时，煤粉出料稳定性相对较差。当半顶角小于45°时，Cv保持稳定，表明煤粉排出平稳。

{"title":"Study on flow characteristics of pulverized coal in eccentrically bent coal hopper","authors":"Yanni Jiang , Tengfei Ma , Yong Wu , Zhihui Zheng , Xiaoming Zhou","doi":"10.1016/j.apt.2025.105132","DOIUrl":"10.1016/j.apt.2025.105132","url":null,"abstract":"<div><div>Particle blockage is a persistent issue during the discharge of coal bunkers. To achieve stable and rapid discharge, an eccentrically bent hopper is proposed, and this structure combines the advantages of both curved and eccentric hoppers. This paper employs Discrete Element Method (DEM) to investigate the discharge characteristics of eccentrically bent hoppers with semi-vertex angles ranging from 15° to 75°. The results show that when the semi-vertex angle exceeds 45°, the average mass flow rate of pulverized coal does not change significantly with semi-vertex angle, and the velocity distribution of coal particles during discharge exhibits an asymmetric pattern. In contrast, when the semi-vertex angle is less than 45°, the average mass flow rate increases obviously as the semi-vertex angle decreases, and the asymmetry of velocity distribution during discharge is reduced. Furthermore, the stability of coal particle discharge with respect to the semi-vertex angle is analyzed using the coefficient of variation (<em>C<sub>v</sub></em>) over both the stable discharge period and the entire discharge process. When semi-vertex angle is greater than 45°, the discharge stability of pulverized coal is relatively poor. As semi-vertex angle is less than 45°, the <em>C<sub>v</sub></em> remains at a stable value, indicating smooth and stable discharge of pulverized coal.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105132"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145610554","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

Simultaneously improving the permeability, core loss and frequency stability of Fe-based soft magnetic composite by optimizing the aspect ratio of reduced Fe powders 通过优化还原铁粉的长径比，同时提高铁基软磁复合材料的磁导率、铁心损耗和频率稳定性

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-01-01 Epub Date: 2025-12-23 DOI: 10.1016/j.apt.2025.105156

Shuainan Xu , Yang Zhou , Hongya Yu , Haiping Wei , Jinwen Hu , Zhongwu Liu

Aiming at developing Fe-based soft magnetic composites (SMCs) with good high-frequency performance, the aspect ratio of reduced Fe powders was modified by ball-milling. The SMCs were prepared by phosphating treatment and resin binding followed by pressing forming. It is found that a large aspect ratio of the powder can effectively reduce the demagnetizing field and suppress the intra-particle eddy loss in the SMC by forming a lamellar structure. As a result, the effective permeability μ_e, core loss P_s, and frequency stability of the SMC can be simultaneously improved. The excellent magnetic properties with high μ_e of 84, low core loss P_s of 552 kW/m³ at 50 mT and 100 kHz, and high-quality factor Q of 62, together with a high frequency stability up to 2.5 MHz, were obtained by using the reduced Fe powders with the aspect ratio of 30:1. Electromagnetic simulation further verified that the increased aspect ratio contributes to the reduced eddy current loss. This work provides a possibility for the application of reduced Fe powder in SMCs for high performance power inductors or other electronic components.

为了研制具有良好高频性能的铁基软磁复合材料，采用球磨法对还原铁粉的长径比进行了改性。采用磷化处理、树脂结合、压制成型法制备了SMCs。研究发现，大长径比的粉末可以有效地降低退磁场，并通过形成层状结构来抑制SMC中的颗粒内涡流损失。同时提高了SMC的有效磁导率μe、磁芯损耗Ps和频率稳定性。采用长径比为30:1的还原铁粉，在50 mT和100 kHz条件下，获得了高μe为84、低磁芯损耗Ps为552 kW/m3、高质量因数Q为62的优异磁性能和高达2.5 MHz的高频稳定性。电磁仿真进一步验证了宽高比的增大有助于减小涡流损耗。这项工作为还原铁粉在高性能功率电感或其他电子元件的SMCs中的应用提供了可能性。

{"title":"Simultaneously improving the permeability, core loss and frequency stability of Fe-based soft magnetic composite by optimizing the aspect ratio of reduced Fe powders","authors":"Shuainan Xu , Yang Zhou , Hongya Yu , Haiping Wei , Jinwen Hu , Zhongwu Liu","doi":"10.1016/j.apt.2025.105156","DOIUrl":"10.1016/j.apt.2025.105156","url":null,"abstract":"<div><div>Aiming at developing Fe-based soft magnetic composites (SMCs) with good high-frequency performance, the aspect ratio of reduced Fe powders was modified by ball-milling. The SMCs were prepared by phosphating treatment and resin binding followed by pressing forming. It is found that a large aspect ratio of the powder can effectively reduce the demagnetizing field and suppress the intra-particle eddy loss in the SMC by forming a lamellar structure. As a result, the effective permeability <em>μ</em><sub>e</sub>, core loss <em>P</em><sub>s</sub>, and frequency stability of the SMC can be simultaneously improved. The excellent magnetic properties with high <em>μ</em><sub>e</sub> of 84, low core loss <em>P</em><sub>s</sub> of 552 kW/m<sup>3</sup> at 50 mT and 100 kHz, and high-quality factor Q of 62, together with a high frequency stability up to 2.5 MHz, were obtained by using the reduced Fe powders with the aspect ratio of 30:1. Electromagnetic simulation further verified that the increased aspect ratio contributes to the reduced eddy current loss. This work provides a possibility for the application of reduced Fe powder in SMCs for high performance power inductors or other electronic components.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105156"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836924","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

2025 Reviewer Appreciation 2025审稿人致谢

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-01-01 Epub Date: 2025-12-31 DOI: 10.1016/j.apt.2025.105149

引用次数: 0

Comparative study on centrifugal granulation behavior of blast furnace slag and copper slag 高炉渣与铜渣离心造粒性能的比较研究

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-01-01 Epub Date: 2025-12-01 DOI: 10.1016/j.apt.2025.105128

Ting Yang , Junxiang Liu , Wenjun Duan , Jiaqu Yu , Jianrong Xu , Qingbo Yu

The adoption of environmental protection and energy conservation measures has led to increased interest among researchers and scholars in the centrifugal granulation of metallurgical slag and waste heat recovery technology. Variations in the production processes of metallurgical slag result in significant disparities in the physical properties of slag from different sources. Blast furnace slag and copper slag are two types of metallurgical slags distinguished by their characteristic properties. Blast furnace slag exhibits higher viscosity and surface tension, whereas copper slag displays lower viscosity and surface tension, resulting in differing granulation characteristics. This study employs numerical simulations to examine the flow patterns during centrifugal granulation and elucidate the mechanism of centrifugal granulation. The study determined that the breaking length to tip diameter ratio was consistent with the findings of Weber’s research. Additionally, it observed the atypical granulation evolution of two types of slag at elevated flow rates, and examined the variation rules of breakup wavelength, tip diameter, crushing length, particle size distribution, and average particle size across varying flow rates. The study also noted that the centrifugal granulation effect of copper slag was significantly influenced by its surface tension. The aforementioned findings can offer theoretical guidance for the implementation of the centrifugal granulation process in the treatment of metallurgical slag.

随着环保节能措施的采用，冶金渣离心造粒和余热回收技术越来越受到研究人员和学者的关注。冶金渣生产工艺的变化导致不同来源的渣在物理性质上存在显著差异。高炉渣和铜渣是两种冶金渣，它们具有不同的特性。高炉渣具有较高的粘度和表面张力，而铜渣具有较低的粘度和表面张力，从而导致不同的造粒特性。本文采用数值模拟的方法研究了离心造粒过程中的流动形态，阐明了离心造粒的机理。研究确定断裂长度与尖端直径之比与Weber的研究结果一致。此外，观察了两种矿渣在高流速下的非典型成粒演化，考察了不同流速下破碎波长、破碎端直径、破碎长度、粒径分布和平均粒径的变化规律。研究还发现，铜渣的离心造粒效果受其表面张力的显著影响。上述研究结果可为离心造粒工艺在冶金渣处理中的应用提供理论指导。

{"title":"Comparative study on centrifugal granulation behavior of blast furnace slag and copper slag","authors":"Ting Yang , Junxiang Liu , Wenjun Duan , Jiaqu Yu , Jianrong Xu , Qingbo Yu","doi":"10.1016/j.apt.2025.105128","DOIUrl":"10.1016/j.apt.2025.105128","url":null,"abstract":"<div><div>The adoption of environmental protection and energy conservation measures has led to increased interest among researchers and scholars in the centrifugal granulation of metallurgical slag and waste heat recovery technology. Variations in the production processes of metallurgical slag result in significant disparities in the physical properties of slag from different sources. Blast furnace slag and copper slag are two types of metallurgical slags distinguished by their characteristic properties. Blast furnace slag exhibits higher viscosity and surface tension, whereas copper slag displays lower viscosity and surface tension, resulting in differing granulation characteristics. This study employs numerical simulations to examine the flow patterns during centrifugal granulation and elucidate the mechanism of centrifugal granulation. The study determined that the breaking length to tip diameter ratio was consistent with the findings of Weber’s research. Additionally, it observed the atypical granulation evolution of two types of slag at elevated flow rates, and examined the variation rules of breakup wavelength, tip diameter, crushing length, particle size distribution, and average particle size across varying flow rates. The study also noted that the centrifugal granulation effect of copper slag was significantly influenced by its surface tension. The aforementioned findings can offer theoretical guidance for the implementation of the centrifugal granulation process in the treatment of metallurgical slag.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105128"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145682955","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

Maltodextrin spray drying in a compact radial multizone dryer – First pilot plant findings 麦芽糖糊精喷雾干燥在一个紧凑的径向多区干燥-第一个试点工厂的发现

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-01-01 Epub Date: 2025-12-11 DOI: 10.1016/j.apt.2025.105148

Santanu Dey, Thomas Tourneur, Axel de Broqueville, Armand Béché, Juray De Wilde

A novel compact radial multizone dryer (RMD) has been tested at the pilot scale. In the radial centre of the chamber, hot air and the atomized solution are injected axially and counter current. In the periphery, mild temperature air is injected through multiple short vortex chambers to generate a rotational motion in the chamber and ensure high-G intensified drying and separation of the produced powder and hot drying air. The RMD allows fast initial drying of the injected droplets with hot air in the radial centre and fast evacuation of the initially dried powder to the periphery for final drying with mild temperature air. First, dry and water evaporation tests were carried out to gain insight in the flow pattern and temperature profile in the chamber. Next, a 4.5 min duration spray drying test was carried out using a 40 % maltodextrin model solution at a solution feed rate of 16.1 g/s. The tests demonstrated the working principle and performance of the RMD. Powder recovery and quality, as well as energy efficiency are discussed.

一种新型紧凑型径向多区干燥机（RMD）已在中试规模进行了测试。在腔室的径向中心，热空气和雾化溶液被轴向和逆流注入。在外围，通过多个短涡室注入温和温度的空气，在室内产生旋转运动，保证生产的粉末和热干空气的高g强化干燥和分离。RMD允许在径向中心用热空气对注入的液滴进行快速初始干燥，并将最初干燥的粉末快速疏散到外围，以使用温和温度的空气进行最终干燥。首先，进行了干燥和水蒸发试验，以了解室内的流动模式和温度分布。其次，采用40%麦芽糖糊精模型溶液，溶液进料速率为16.1 g/s，进行持续4.5 min的喷雾干燥试验。试验验证了RMD的工作原理和性能。讨论了粉末的回收和质量，以及能源效率。

引用次数: 0

Full title (Editorial Board Members) 全称（编委成员）

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-01-01 Epub Date: 2026-01-09 DOI: 10.1016/S0921-8831(26)00004-X

引用次数: 0

Controllable preparation and characterization of single-phase W-10Ti powder for high-performance refractory alloy targets 高性能耐火合金靶用单相W-10Ti粉末的可控制备与表征

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-01-01 Epub Date: 2025-12-05 DOI: 10.1016/j.apt.2025.105135

Baokai Wang , Ning Luo , Zewen Wang , Chengcheng Ye , Zongwen Fu , Xiaochao Wu , Qingkui Li , Jilin He

In this work, mechanical alloying is used to prepare single-phase W-10Ti alloy powder. The effects of ball milling time on the phase constitution, morphology, particle size, composition, oxygen content and the occurrence state of oxygen of W-10Ti alloy powder are thoroughly studied. The results show that the morphology of particles gradually changes from the irregular polyhedron to the sphere with increasing milling time. The D₅₀ of the powder increases from ∼13.9 µm for initial powder to ∼24.1 µm after 2 h ball milling, and then decreases to ∼6.7 µm after 16 h ball milling. When milling for 8 h, W and Ti achieve a complete solid solution. The application of an excessive ball milling time readily results in a drastic increase in the oxygen content. The oxygen content of the powder increases from 1082.1 ppm for initial powder over 4130.9 ppm after 8 h ball milling to 6343.3 ppm after 16 h ball milling. This work offers critical theoretical insights and technical guidance for the controllable synthesis and characterization of pre-alloyed powders by physical metallurgy methods.

本工作采用机械合金化法制备单相W-10Ti合金粉末。研究了球磨时间对W-10Ti合金粉末的相组成、形貌、粒度、成分、氧含量及氧赋存状态的影响。结果表明：随着磨矿时间的延长，颗粒形貌逐渐由不规则多面体向球体转变；粉末的D50从初始粉末的~ 13.9µm增加到2 h球磨后的~ 24.1µm，然后在球磨16 h后下降到~ 6.7µm。当铣削8 h时，W和Ti达到完全固溶体。球磨时间过长很容易导致氧含量急剧增加。球磨8 h后，粉末的氧含量从初始粉末的1082.1 ppm增加到4130.9 ppm，球磨16 h后增加到6343.3 ppm。这项工作为物理冶金方法可控合成和表征预合金粉末提供了重要的理论见解和技术指导。

{"title":"Controllable preparation and characterization of single-phase W-10Ti powder for high-performance refractory alloy targets","authors":"Baokai Wang , Ning Luo , Zewen Wang , Chengcheng Ye , Zongwen Fu , Xiaochao Wu , Qingkui Li , Jilin He","doi":"10.1016/j.apt.2025.105135","DOIUrl":"10.1016/j.apt.2025.105135","url":null,"abstract":"<div><div>In this work, mechanical alloying is used to prepare single-phase W-10Ti alloy powder. The effects of ball milling time on the phase constitution, morphology, particle size, composition, oxygen content and the occurrence state of oxygen of W-10Ti alloy powder are thoroughly studied. The results show that the morphology of particles gradually changes from the irregular polyhedron to the sphere with increasing milling time. The <em>D</em><sub>50</sub> of the powder increases from ∼13.9 µm for initial powder to ∼24.1 µm after 2 h ball milling, and then decreases to ∼6.7 µm after 16 h ball milling. When milling for 8 h, W and Ti achieve a complete solid solution. The application of an excessive ball milling time readily results in a drastic increase in the oxygen content. The oxygen content of the powder increases from 1082.1 ppm for initial powder over 4130.9 ppm after 8 h ball milling to 6343.3 ppm after 16 h ball milling. This work offers critical theoretical insights and technical guidance for the controllable synthesis and characterization of pre-alloyed powders by physical metallurgy methods.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105135"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145682959","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

Effect of residual CO2 on three-phase flow characteristics of carbon sequestration backfill slurry in straight horizontal pipeline 残余CO2对直水平管道固碳回填浆三相流动特性的影响

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-01-01 Epub Date: 2025-12-01 DOI: 10.1016/j.apt.2025.105124

Yujiao Zhao , Yingnan Han , Cong Zhou , Yan Li , Zhiyu Fang , Lei Xia , Dachuan Lu , Qifeng Jia , Yuheng Gao

As a new approach for large-scale solid waste utilization and carbon sequestration, carbon sequestration backfilling technology requires a clear understanding of slurry pipeline transport characteristics. As an unstable gas-phase component, the influence of CO₂ on multiphase flow behavior must be considered. This study establishes a gas–liquid-solid Eulerian model coupled with Population Balance Model (PBM) to characterize CO₂ bubble aggregation and reveal how inlet velocity, pipe diameter and residual CO₂ content affect slurry flow characteristics. The results show that: (1) Slurry velocity presents an asymmetric distribution (top > bottom), due to multiphase coupling effect- CO₂ enrichment at the top forms a gas–liquid lubricating layer to reduce resistance, while gangue particles deposition at the bottom increases resistance; (2) Parameter sensitivity: Increasing inlet velocity increases flow core velocity and pressure drop; Expanding pipe diameter reduces flow core velocity and pressure drop, while intensifying slurry-particle slip; Increasing residual CO₂ content reduces pressure drop, slightly inhibits flow core velocity, and exacerbates the flow core offset. This study confirms residual CO₂ content, inlet velocity, and pipe diameter as key parameters regulating pipeline transportation performance of carbon sequestration backfill slurry, providing theoretical support for parameter optimization and energy consumption control of slurry transportation system.

固碳回填技术作为一种大规模固废利用和固碳的新途径，需要对浆料管道输送特性有清晰的认识。CO2作为一种不稳定的气相组分，必须考虑其对多相流动行为的影响。本研究建立气液固耦合人口平衡模型（Population Balance model， PBM）的欧拉模型来表征CO2气泡聚集，揭示入口速度、管径和残余CO2含量对浆体流动特性的影响。结果表明：(1)浆体速度呈现不对称分布（顶部>；底部），由于多相耦合效应，顶部CO2富集形成气液润滑层，降低阻力，而底部脉石颗粒沉积增加阻力；(2)参数敏感性：进口速度增大，流心速度增大，压降增大；扩大管径会降低岩心流速和压降，加剧泥浆颗粒滑移；增加残余CO2含量可降低压降，轻微抑制流心速度，加剧流心偏移。本研究确定了剩余CO2含量、进口流速和管径是调节固碳回填浆体管道输送性能的关键参数，为浆体输送系统参数优化和能耗控制提供理论支持。

{"title":"Effect of residual CO2 on three-phase flow characteristics of carbon sequestration backfill slurry in straight horizontal pipeline","authors":"Yujiao Zhao , Yingnan Han , Cong Zhou , Yan Li , Zhiyu Fang , Lei Xia , Dachuan Lu , Qifeng Jia , Yuheng Gao","doi":"10.1016/j.apt.2025.105124","DOIUrl":"10.1016/j.apt.2025.105124","url":null,"abstract":"<div><div>As a new approach for large-scale solid waste utilization and carbon sequestration, carbon sequestration backfilling technology requires a clear understanding of slurry pipeline transport characteristics. As an unstable gas-phase component, the influence of CO<sub>2</sub> on multiphase flow behavior must be considered. This study establishes a gas–liquid-solid Eulerian model coupled with Population Balance Model (PBM) to characterize CO<sub>2</sub> bubble aggregation and reveal how inlet velocity, pipe diameter and residual CO<sub>2</sub> content affect slurry flow characteristics. The results show that: (1) Slurry velocity presents an asymmetric distribution (top > bottom), due to multiphase coupling effect- CO<sub>2</sub> enrichment at the top forms a gas–liquid lubricating layer to reduce resistance, while gangue particles deposition at the bottom increases resistance; (2) Parameter sensitivity: Increasing inlet velocity increases flow core velocity and pressure drop; Expanding pipe diameter reduces flow core velocity and pressure drop, while intensifying slurry-particle slip; Increasing residual CO<sub>2</sub> content reduces pressure drop, slightly inhibits flow core velocity, and exacerbates the flow core offset. This study confirms residual CO<sub>2</sub> content, inlet velocity, and pipe diameter as key parameters regulating pipeline transportation performance of carbon sequestration backfill slurry, providing theoretical support for parameter optimization and energy consumption control of slurry transportation system.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105124"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145682956","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

首页上一页

下一页尾页

类型

全部化学•材料生命科学医学物理工程技术环境•农林材料科学地球科学法学管理学化学环境科学与生态学计算机科学教育学经济学农林科学人文科学生物学数学物理与天体物理心理学综合性期刊其他工业工程理学历史学农学文学信息工程

数据库

全部 ACS Publications Elsevier ieeexplore Springer The Royal Society of Chemistry Wiley

期刊

Advanced Powder Technology

全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.

﹀