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Journal of Iron and Steel Research International 2021年第5期28卷 507-519页

作者： Quan Shi jue Tang man-sheng Chu School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina Institute for Frontier Technologies of Low-Carbon Steelmaking Northeastern UniversityShenyang 110819LiaoningChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819LiaoningChina

The core of the long-life copper stave was to ensure the stability of the slag layer,and the uniform distribution of the slag layer was beneficial to restrict the generation of the overthick slag layer.A novel model for calculating the thickness and distribution of the slag layer in the part of copper stave was established based on the finite element theory through the ANSYS birth-death element *** distribution and thickness of the slag layer on the hot surface of copper stave were calculated and analyzed when the gas temperature and slag properties tended to be changed,which was applied to characterize the slag-hanging capability of copper stave with the changes of furnace *** was shown that the thickness of hot surface slag layer in the part of copper stave decreased obviously while the temperature of stave body raised rapidly with increasing gas *** the gas temperature was 1400℃,the inlaid slag layer was gradually melted,and the maximum temperature of the stave body was closed to 120℃.The change of gas temperature was very sensitive to the adherent dross capability of copper stave which would be enhanced by the promotion of slag-hanging ***,when the slag-hanging temperature was 1150℃and the gas temperature was lower than 1250℃,the overlhick slag layer was easily formed on the hot surface of the copper stave,and its stability was *** improvement in the thermal conductivity of slag could be conducive to the formation of the uniform and stable slag layer on the hot surface of copper stave,especially in the dovetail *** the thermal conductivity of the slag was greater than 1.8 W m^(-2)℃^(-1),the inlaid slag layer in the dovetail groove was not melted,although the gas temperature reached 1500℃.

关键词： Copper stave Heat transfer Birth-death element Numerical simulation Slag-hanging capability

Optimized use of MgO flux in the agglomeration of high-chromium vanadium–titanium magnetite

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International Journal of Minerals,Metallurgy and Materials 2015年第4期22卷 371-380页

作者： jue Tang man-sheng Chu Xiang-xin Xue School of Material and Metallurgy Northeastern University

The optimized use of MgO flux in the agglomeration of high-chromium vanadium-titanium magnetite was investigated system- atically through sinter and pellet experiments. MgO was added in the form of magnesite. When the content of MgO in the sinter was in- creased from 1.95wt% to 2.63wt%, the low-temperature reduction degradation index increased from 80.57% to 82.71%. When the content of MgO in the pellet was increased from 1.14wt% to 2.40wt%, the reduction swelling index decreased from 15.2% to 8.6%; however, the com- pressive strength of the oxidized pellet decreased dramatically and it was 1985 N with an MgO content of 1.14wt%. This compressive strength does not satisfy the requirements for blast-furnace production. When all of the aforementioned results were taken into account, the sinter with a high MgO content （2.63wt%） matching the pellet with a low MgO content （less than 1.14wt%） was the rational burden structure for smelting high-chromium vanadium-titanium magnetite in blast furnaces.

关键词： magnetite ore pellets magnesia agglomeration burden sintering

Effects of smelting parameters on the slag/metal separation behaviors of Hongge vanadium-bearing titanomagnetite metallized pellets obtained from the gas-based direct reduction process

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International Journal of Minerals,Metallurgy and Materials 2018年第6期25卷 609-622页

作者： Cong Feng man-sheng Chu jue Tang Zheng-gen Liu School of Metallurgy Northeastern University

Smelting separations of Hongge vanadium-bearing titanomagnetite metallized pellets（HVTMP）prepared by gas-based direct reduction were investigated,and the effects of smelting parameters on the slag/metal separation behaviors were *** mechanisms were elucidated using X-ray diffraction analysis,FACTSAGE 7.0 calculations,and scanning electron microscopy *** results show that,when the smelting temperature,time,and C/O ratio are increased,the recoveries of V and Cr of HVTMP in pig iron are improved,the recovery of Fe initially increases and subsequently decreases,and the recovery of Ti O_2 in slag *** the smelting Ca O/Si O_2 ratio is increased,the recoveries of Fe,V,and Cr in pig iron increase and the recovery of Ti O_2 in slag initially increases and subsequently *** appropriate smelting separation parameters for HVTMP are as follows：smelting temperature of 1873 K;smelting time of 30–50 min;C/O ratio of 1.25;and Ca O/Si O_2 ratio of *** these optimized parameters（smelting time：30 min）,the recoveries of Fe,V,Cr,and Ti O_2 are 99.5%,91.24%,92.41%,and 94.86%,respectively.

关键词： titanomagnetite vanadium chromium metallized pellets smelting separation recovery

Physical rehabilitation for sensorineural hearing loss in childhood:Progress and challenges

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World Journal of Clinical Cases 2025年第7期13卷 57-62页

作者： Lu Zhang Pu-jue Huang Xue Deng Jiao Tang Yang zhai Tao Wang Department of Pediatrics Luzhou Maternal and Child Health HospitalLuzhou 646600Sichuan ProvinceChina Department of Pediatrics West China Second University HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Pediatrics The First People's Hospital of Longquanyi DistrictChengdu 610100Sichuan ProvinceChina Ministry of Education Key Laboratory of Birth Defects and Related Diseases of Women and Children(Sichuan University)Chengdu 610041Sichuan ProvinceChina Department of Pediatrics Chengdu Women’s and Children’s Central HospitalChengdu 610000Sichuan ProvinceChina

Early intervention for sensorineural hearing loss(SNHL)in childhood is crucial for auditory and language *** recent years,innovative auditory stimulation techniques and speech therapy strategies,such as middle ear implants,cochlear implants,auditory brainstem implants,and midbrain implants,have provided new avenues for improving patient ***,basic research advancements in cell reprogramming and regeneration,stem cell therapy,and targeted drug delivery offer promising approaches to meet the individualized needs of children with ***,many challenges and unresolved issues remain in the treatment of *** article comments on the case report,which describes a female pediatric patient with SNHL who underwent foot reflexology which led to the normalization of hearing *** is considered to have potential benefits in physical rehabilitation,but its efficacy in hearing restoration requires further scientific validation through rigorous clinical trials and large-scale prospective studies.

关键词： Sensorineural hearing loss Childhood Physical rehabilitation therapy Recent advances in rehabilitation techniques Reflexology

关注学习路上的慢跑者——苏霍姆林斯基“学困生”教育思想及启示

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兵团教育学院学报 2025年第1期35卷 56-64页

作者：王福关满姗翟玉洁石河子大学师范学院/兵团教育学院新疆石河子832003 石河子大学师范学院新疆石河子832003

苏霍姆林斯基在长期的教育实践中,形成了其独特的学困生教育观。本研究基于苏霍姆林斯基关于学困生的教育思想,主要从学校教育和家庭教育两方面分析了学困生的成因,并提出了相应的转化策略。苏霍姆林斯基的教育思想对当下学困生教育有... 详细信息

苏霍姆林斯基在长期的教育实践中,形成了其独特的学困生教育观。本研究基于苏霍姆林斯基关于学困生的教育思想,主要从学校教育和家庭教育两方面分析了学困生的成因,并提出了相应的转化策略。苏霍姆林斯基的教育思想对当下学困生教育有着重要启示,应让学生养成良好的学习习惯和学习的自觉性,构建学校的全面育人系统,强化教师的主导作用,引导学困生发挥自我转化的主体作用。

关键词：学困生苏霍姆林斯基转化策略启示

Effects of MgO/Al_(2)O_(3)and CaO/SiO_(2)ratios on viscosity of high titaniumbearing blast furnace slag

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Journal of Iron and Steel Research International 2023年第3期30卷 456-464页

作者： Hua-bin Gao jue Tang man-sheng Chu Shu-yu Zhong Zheng-gen Liu School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina Liaoning Province Engineering Research Center for Technologies of Low-Carbon Steelmaking Northeastern UniversityShenyang 110819LiaoningChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819LiaoningChina

The effects of MgO/Al_(2)O_(3)and CaO/SiO_(2)ratios on the viscosity,break-point temperature,and viscous activation energy of a high titanium-bearing slag were *** results showed that both the viscosity and the break-point temperature of the slag decreased with the MgO/Al_(2)O_(3)ratio increasing from 0.50 to 0.65,the viscous activation energy decreased gradually,and the thermal stability became *** addition,with an increase in CaO/SiO_(2)ratio from 1.12 to 1.22,the main viscous units in the slag depolymerized and the viscosity of slag ***,the break-point temperature of slag showed an increasing *** viscous activation energy decreased gradually and the thermal stability became *** basic phase in the experimental high titanium-bearing slag was pyroxene,and its amount increased with increasing the MgO/Al_(2)O_(3)ratio while decreased with increasing the CaO/SiO_(2)ratio.

关键词： High titanium-bearing slag Viscosity Viscous activation energy Break-point temperature Phase composition

Development and progress on hydrogen metallurgy

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International Journal of Minerals,Metallurgy and Materials 2020年第6期27卷 713-723页

作者： jue Tang man-sheng Chu Feng Li Cong Feng Zheng-gen Liu Yu-sheng Zhou School of Ferrous Metallurgy Northeastern UniversityShenyang 110819China State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819China

Hydrogen metallurgy is a technology that applies hydrogen instead of carbon as a reduction agent to reduce CO2 emission,and the use of hydrogen is beneficial to promoting the sustainable development of the steel *** metallurgy has numerous applications,such as H2reduction ironmaking in Japan,ULCORED and hydrogen-based steelmaking in Europe;hydrogen flash ironmaking technology in the US;HYBRIT in the Nordics;Midrex H2TM by Midrex Technologies,Inc.(United States);H2FUTURE by Voestalpine(Austria);and SALCOS by Salzgitter AG(Germany).Hydrogen-rich blast furnaces(BFs)with COG injection are common in *** BFs have been industrially tested by AnSteel,XuSteel,and *** a currently under construction pilot plant of a coal gasification–gas-based shaft furnace with an annual output of 10000 t direct reduction iron(DRI),a reducing gas composed of 57 vol%H2 and 38 vol%CO is prepared via the Ende *** life cycle of the coal gasification–gas-based shaft furnace–electric furnace short process(30 wt%DRI+70 wt%scrap)is assessed with 1 t of molten steel as a functional *** plant has a total energy consumption per ton of steel of 263.67 kg standard coal and a CO2 emission per ton of steel of 829.89 kg,which are superior to those of a traditional BF converter *** domestic materials and fuels,hydrogen production and storage,and hydrogen reduction characteristics,we believe that a hydrogen-rich shaft furnace will be suitable in *** production and storage with an economic and large-scale industrialization will promote the further development of a full hydrogen shaft furnace.

关键词： hydrogen hydrogen metallurgy blast furnace shaft furnace low carbon

Oxidation mechanism and non-isothermal kinetic studies on carbonate iron ore by thermogravimetric analysis

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Journal of Iron and Steel Research International 2018年第12期25卷 1223-1231页

作者： Ya-ting Tang man-sheng Chu jue Tang Li-hua Gao Zheng-gen Liu School of Metallurgy Northeastern University Shenyang 110819LiaoningChina

Due to the uncertain and heterogeneous compositions of carbonate iron ore after magnetization roasting,an oxidation pretreatment was applied to increase the uniformity of the composition of the *** oxidation of carbonate iron ore was characterized using a thermogravimetric method over a temperature range of 723-948 *** is shown that the oxidation process of carbonate iron ore is complicated and consists of multiple reactions that include the decomposition and oxidation of carbonates such as FeCO3,MnCO3,MgCO3 and CaMg(CO3)*** main product that results from oxidation is *** of the low content of other carbonates (MnCO3,MgCO3 and CaMg(CO3)2)in raw carbonate iron ore and the small change in the apparent activation energies during oxidation,the oxidation of carbonate iron ore can be treated as a single-step FeCO3 oxidation *** on the Ozawa-Flynn-Wall method,which is one of the model-free methods, the apparent activation energy for the oxidation of carbonate iron ore is 284.50 kJ mol^-*** most probable reaction model for the oxidation of carbonate iron ore is the Sestak-Berggren model as determined by the theoretical and actual master plot and eigenvalues of the Malek *** reaction orders n and m are 1.317 and 0.0295,*** preexponential factor is 2.628 ×10^17 min^-1.

关键词： Carbonate iron ore Oxidation mechanism Kinetic parameter Malek method Sestak-Berggren model

Effects of MgO and TiO_2 on the viscous behaviors and phase compositions of titanium-bearing slag

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International Journal of Minerals,Metallurgy and Materials 2016年第8期23卷 868-880页

作者： Cong Feng man-sheng Chu jue Tang Jin Qin Feng Li Zheng-gen Liu School of Metallurgy Northeastern University

The effects of MgO and TiO_2 on the viscosity, activation energy for viscous flow, and break-point temperature of titanium-bearing slag were studied. The correlation between viscosity and slag structure was analyzed by Fourier transform infrared（FTIR） spectroscopy. Subsequently, main phases in the slag and their content changes were investigated by X-ray diffraction and Factsage 6.4 software package. The results show that the viscosity decreases when the MgO content increases from 10.00wt% to 14.00wt%. Moreover, the break-point temperature increases, and the activation energy for viscous flow initially increases and subsequently decreases. In addition, with increasing TiO_2 content from 5.00wt% to 9.00wt%, the viscosity decreases, and the break-point temperature and activation energy for viscous flow initially decrease and subsequently increase. FTIR analyses reveal that the polymerization degree of complex viscous units in titanium-bearing slag decreases with increasing MgO and TiO_2 contents. The mechanism of viscosity variation was elucidated. The basic phase in experimental slags is melilite. Besides, as the MgO content increases, the amount of magnesia–alumina spinel in the slag increases. Similarly, the sum of pyroxene and perovskite phases in the slag increases with increasing TiO_2 content.

关键词： ironmaking blast furnace slag viscous properties phase composition magnesium oxide titanium dioxide