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多目标自适应优化模型预测控制——降低氧化锌回转窑的碳排放 Article
Ke Wei, Keke Huang, Chunhua Yang, Weihua Gui
《工程(英文)》 2023年 第27卷 第8期 页码 96-105 doi: 10.1016/j.eng.2023.01.017
The zinc oxide rotary kiln, as an essential piece of equipment in the zinc smelting industrial process, is presenting new challenges in process control. China's strategy of achieving a carbon peak and carbon neutrality is putting new demands on the industry, including green production and the use of fewer resources; thus, traditional stability control is no longer suitable for multi-objective control tasks. Although researchers have revealed the principle of the rotary kiln and set up computational fluid dynamics (CFD) simulation models to study its dynamics, these models cannot be directly applied to process control due to their high computational complexity. To address these issues, this paper proposes a multi-objective adaptive optimization model predictive control (MAO-MPC) method based on sparse identification. More specifically, with a large amount of data collected from a CFD model, a sparse regression problem is first formulated and solved to obtain a reduction model. Then, a two-layered control framework including real-time optimization (RTO) and model predictive control (MPC) is designed. In the RTO layer, an optimization problem with the goal of achieving optimal operation performance and the lowest possible resource consumption is set up. By solving the optimization problem in real time, a suitable setting value is sent to the MPC layer to ensure that the zinc oxide rotary kiln always functions in an optimal state. Our experiments show the strength and reliability of the proposed method, which reduces the usage of coal while maintaining high profits.
关键词: Zinc oxide rotary kiln Model reduction Sparse identification Real-time optimization Model predictive control Process control
Co-pyrolysis of sludge and kaolin/zeolite in a rotary kiln: Analysis of stabilizing heavy metals
《环境科学与工程前沿(英文)》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1488-1
• Adding kaolin/zeolite promotes the formation of stable heavy metals.
关键词: Co-pyrolysis Sewage sludge Heavy metals Rotary kiln Immobilization mechanism
Templated synthesis of urchin-like zinc oxide particles by micro-combustion
Xintong ZHOU, Quan ZHANG, Chang-jun LIU
《化学科学与工程前沿(英文)》 2014年 第8卷 第1期 页码 73-78 doi: 10.1007/s11705-014-1404-3
关键词: dielectric-barrier discharge zinc oxide carbon template removal plasma
雷先明,肖友刚
《中国工程科学》 2006年 第8卷 第8期 页码 39-44
根据回转窑内物料颗粒的运动特点,推导了颗粒团在贴壁运动过程中的非稳态导热系数及界面处的接触传热系数,进而得出了物料与封盖窑壁间的换热系数;结合已有研究成果,建立了回转窑的传热数学模型。计算表明,未考虑物料与窑壁间歇接触对回转窑传热过程的强化效应时,物料温度偏低;温度越高,强化效应对物料温度的影响越大;考虑物料与窑壁间歇接触对回转窑传热过程的强化效应,有利于提高回转窑煅烧熟料的质量和热效率。
Ecotoxicological effect of zinc oxide nanoparticles on soil microorganisms
Zhaoyi SHEN,Zhuo CHEN,Zhen HOU,Tingting LI,Xiaoxia LU
《环境科学与工程前沿(英文)》 2015年 第9卷 第5期 页码 912-918 doi: 10.1007/s11783-015-0789-7
关键词: zinc oxide nanoparticles (ZnO-NPs) soil microorganisms respiration ammonification dehydrogenase (DH) activity fluorescent diacetate hydrolase (FDAH) activity
《化学科学与工程前沿(英文)》 2023年 第17卷 第9期 页码 1244-1253 doi: 10.1007/s11705-022-2293-5
关键词: zinc-ion battery CaV8O20 polyaniline coating synergistic engineering high capacity long durability
《化学科学与工程前沿(英文)》 2023年 第17卷 第6期 页码 704-715 doi: 10.1007/s11705-022-2270-z
关键词: bio-based multifunction colorimetric indicator active and intelligent packaging
《环境科学与工程前沿(英文)》 2022年 第16卷 第2期 doi: 10.1007/s11783-021-1453-z
• ZnO-NP disrupted metabolic/catabolic balance of bacteria by affecting DHA activity.
关键词: Granular sludge Biotoxicity Reactive oxygen species Extracellular polymeric substances
Vo-Van Giau, Yoon-Hee Park, Kyu-Hwan Shim, Sang-Wook Son, Seong-Soo A. An
《化学科学与工程前沿(英文)》 2019年 第13卷 第1期 页码 90-97 doi: 10.1007/s11705-018-1766-z
The potential applications of nanomaterials used in nanomedicine as ingredients in drug delivery systems and in other products continue to expand. When nanomaterials are introduced into physiological environments and driven by energetics, they readily associate proteins forming a protein corona (PC) on their surface. This PC could result in an alteration of the nanomaterial’s surface characteristics, affecting their interaction with cells due to conformational changes in adsorbed protein molecules. However, our current understanding of nanobiological interactions is still very limited. Utilizing a liquid chromatography–mass spectroscopy/mass spectroscopy technology and a Cytoscape plugin (ClueGO) approach, we examined the composition of the PC for a set of zinc oxide nanoparticles (ZnONP) from cell culture media typically and further analyzed the biological interaction of identified proteins, respectively. In total, 36 and 33 common proteins were investigated as being bound to ZnONP at 5 min and 60 min, respectively. These proteins were further analyzed with ClueGO, a Cytoscape plugin, which provided gene ontology and the biological interaction processes of identified proteins. Proteins bound to the surface of nanoparticles that may modify the structure, therefore the function of the adsorbed protein could be consequently affect the complicated biological processes.
李学军,张美阳,褚福磊
《中国工程科学》 2007年 第9卷 第12期 页码 16-20
针对回转窑托轮偏斜对接触区应力分布的影响,运用赫兹接触理论,推导出托轮与滚圈最大接触应力比与托轮偏斜角的关系;采用有限元方法计算某支承结构托轮平行与呈最大偏斜角时的接触问题,得到支承部件接触应力和等效应力应变分布情况,并得出滚圈和托轮的危险易损部位;为回转窑的轴向调控提供了有效的理论依据。
Alumina modified sodium vanadate cathode for aqueous zinc-ion batteries
《能源前沿(英文)》 页码 775-781 doi: 10.1007/s11708-023-0902-8
关键词: cathodes aqueous zinc-ion batteries sodium vanadate alumina coating
Zinc homeostasis in the metabolic syndrome and diabetes
null
《医学前沿(英文)》 2013年 第7卷 第1期 页码 31-52 doi: 10.1007/s11684-013-0251-9
Zinc (Zn) is an essential mineral that is required for various cellular functions. Zn dyshomeostasis always is related to certain disorders such as metabolic syndrome, diabetes and diabetic complications. The associations of Zn with metabolic syndrome, diabetes and diabetic complications, thus, stem from the multiple roles of Zn: (1) a constructive component of many important enzymes or proteins, (2) a requirement for insulin storage and secretion, (3) a direct or indirect antioxidant action, and (4) an insulin-like action. However, whether there is a clear cause-and-effect relationship of Zn with metabolic syndrome, diabetes, or diabetic complications remains unclear. In fact, it is known that Zn deficiency is a common phenomenon in diabetic patients. Chronic low intake of Zn was associated with the increased risk of diabetes and diabetes also impairs Zn metabolism. Theoretically Zn supplementation should prevent the metabolic syndrome, diabetes, and diabetic complications; however, limited available data are not always supportive of the above notion. Therefore, this review has tried to summarize these pieces of available information, possible mechanisms by which Zn prevents the metabolic syndrome, diabetes, and diabetic complications. In the final part, what are the current issues for Zn supplementation were also discussed.
关键词: zinc zinc transporters metallothionein diabetes diabetic complications insulin resistance antioxidant
Tianxiang XIA, Xuehua LIU
《环境科学与工程前沿(英文)》 2011年 第5卷 第2期 页码 236-242 doi: 10.1007/s11783-010-0218-8
Soybean drying characteristics in microwave rotary dryer with forced convection
Ruifang WANG, Zhanyong LI, Yanhua LI, Jingsheng YE
《化学科学与工程前沿(英文)》 2009年 第3卷 第3期 页码 289-292 doi: 10.1007/s11705-009-0022-y
标题 作者 时间 类型 操作
Co-pyrolysis of sludge and kaolin/zeolite in a rotary kiln: Analysis of stabilizing heavy metals
期刊论文
Templated synthesis of urchin-like zinc oxide particles by micro-combustion
Xintong ZHOU, Quan ZHANG, Chang-jun LIU
期刊论文
Ecotoxicological effect of zinc oxide nanoparticles on soil microorganisms
Zhaoyi SHEN,Zhuo CHEN,Zhen HOU,Tingting LI,Xiaoxia LU
期刊论文
Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coatingfor high performance zinc-ion batteries
期刊论文
Anthocyanins/chitosan films doped by nano zinc oxide for active and intelligent packaging: comparison
期刊论文
Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD
期刊论文
Dynamic changes of protein corona compositions on the surface of zinc oxide nanoparticle in cell culture
Vo-Van Giau, Yoon-Hee Park, Kyu-Hwan Shim, Sang-Wook Son, Seong-Soo A. An
期刊论文
Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel
Tianxiang XIA, Xuehua LIU
期刊论文