Dynamic Simulation of Mechanical Solid-Liquid Separation in Centrifuges
离心机机械固液分离的动态仿真
基本信息
- 批准号:238344535
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Priority Programmes
- 财政年份:2013
- 资助国家:德国
- 起止时间:2012-12-31 至 2019-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The following sub-project Dynamic Simulation of Mechanical Solid-Liquid Separation Centrifuges deals with the development of a dynamic process model for flowsheet simulations of the separation behaviour and dewatering in continuous centrifuges. During the first two funding periods, material functions for the settling behaviour, the sediment build-up and solids transport of PVC were experimentally investigated. The investigations for the sediment build-up of PVC show incompressible material behaviour with an approximately constant porosity of the saturated cake. In addition to the laboratory tests for the material, experiments for the stepwise change of process conditions and machine parameters for a lab-decanter centrifuge verify a correlation between transient changes of the separation behaviour and the residence time distribution of the liquid. The results yield in a dynamic process model. The approach connects the separation behaviour, residence time distribution and the solids transport by the screw conveyor system with the material properties. The basis of the modelling is the interconnection of different compartments. This allows the solution of local distributed material properties. Moreover, the presented approach combines the settling behaviour with the sediment transport by correcting the volume of the separation zone by considering the sediment radius. In the third funding period, the dynamic process model will be extended by the dewatering of coarsely-dispersed particles, the consolidation behaviour of flocculated suspensions and the flowsheet simulation for the inter-connection between precipitation and solid-liquid separation. A lab centrifuge is used for determining the kinetics of the dewatering process. The cake transport in the conical part of the machine and the dewatering kinetics reveal in the dynamic process model for dewatering. Flocculated particles exhibit a completely different material behaviour for the sediment build-up. The porosity of the cake depends on the compressive yield stress, which is measured in a lab centrifuge. The experimental investigation reveals in the material function for the compressive yield stress. Furthermore, the conveyability of a saturated cake depends on the shear stress and the yield point. Both are measured in a ring shear tester and are combined with the compressive yield stress in the dynamic process model of flocculated slurries in decanter centrifuges. Cooperation with the group of AG Kind for the flowsheet simulation of precipitation and decanter centrifuge will be exhibit the efficiency of Dyssol. This includes the inter-connection of precipitation and solids-liquid separation by taking a tear stream of the fines into the precipitation reactor into account and. This results in a completely coupled dynamic flowsheet of the overall process.
机械固液分离离心机动态模拟的下列子项目涉及开发动态过程模型,用于连续离心机中分离行为和脱水的流程图模拟。在前两个资助期,对聚氯乙烯的沉降行为、泥沙堆积和固体迁移的材料功能进行了实验研究。对聚氯乙烯沉淀物的研究表明,聚氯乙烯是一种不可压缩的材料,其饱和滤饼的孔隙率基本恒定。除了对材料的实验室测试外,对实验室-卧螺离心机的工艺条件和机器参数的逐步改变的实验验证了分离行为的瞬时变化与液体停留时间分布之间的相关性。结果在动态过程模型中产生。该方法将螺旋输送系统的分离行为、停留时间分布和固体输送与物料性质联系起来。建模的基础是不同车厢之间的相互连接。这允许解决本地分布的材料属性。此外,该方法通过考虑泥沙半径来修正分离区的体积,从而将泥沙的沉降行为与泥沙的输移结合起来。在第三个资金期,将扩展动态过程模型,包括粗分散颗粒的脱水、絮凝悬浮液的固结行为以及沉淀与固液分离相互联系的流程图模拟。用实验室离心机测定脱水过程的动力学。脱水机锥体部分的滤饼输送和脱水动力学反映在脱水的动态过程模型中。对于沉积物的堆积,絮凝颗粒表现出完全不同的材料行为。蛋糕的孔隙率取决于压缩屈服应力,这是在实验室离心机中测量的。实验研究揭示了材料函数对压缩屈服应力的影响。此外,饱和滤饼的输送能力取决于剪应力和屈服点。两者都是在环形剪切试验机上测量的,并与卧螺离心机中絮凝泥浆的动态过程模型中的压缩屈服应力相结合。与AG集团合作进行沉淀和卧螺离心机的流程图模拟,将展示Dyssol的效率。这包括通过考虑进入沉淀反应器的细小颗粒的撕裂流来实现沉淀和固液分离的互连。这导致了整个过程的完全耦合的动态流程图。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Professor Dr.-Ing. Hermann Nirschl其他文献
Professor Dr.-Ing. Hermann Nirschl的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Professor Dr.-Ing. Hermann Nirschl', 18)}}的其他基金
Breakage of unstable protein crystals in mechanical solid-liquid separation processes
机械固液分离过程中不稳定蛋白质晶体的破碎
- 批准号:
315011332 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Priority Programmes
Clarification of segregation behavior of polydisperse, moist bulk materials with different wetting properties in discontinuous mixing processes
阐明不连续混合过程中具有不同润湿特性的多分散、潮湿散装材料的偏析行为
- 批准号:
313759864 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Research Grants
Investigation of the settling behavior of arbitrarily shaped particles in diluted and concentrated suspensions
研究稀释和浓缩悬浮液中任意形状颗粒的沉降行为
- 批准号:
278893567 - 财政年份:2015
- 资助金额:
-- - 项目类别:
Research Grants
In situ Time-resolved Characterization of Particle Systems in the Continuous Synthesis Process by Means of a Newly-developed USAXS/WAXS Laboratory Camera
利用新开发的 USAXS/WAXS 实验室相机对连续合成过程中的粒子系统进行原位时间分辨表征
- 批准号:
262980686 - 财政年份:2014
- 资助金额:
-- - 项目类别:
Research Grants
Numerical investigations on the influence of the electrode microstructure on the performance of lithium-ion batteries.
电极微结构对锂离子电池性能影响的数值研究。
- 批准号:
223609496 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Research Grants
Development of a semi-continuous centrifugal process for classifying colloidal particles
开发用于分级胶体颗粒的半连续离心工艺
- 批准号:
222168573 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Research Grants
Aufklärung der Sedimentation von sich destabilisierenden Suspensionen
不稳定悬浮液沉淀的澄清
- 批准号:
203596674 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Research Grants
Einfluss der Dispersion und des Transports auf das Mischverhalten von niedrig konzentrierten, partikulären Mischungen in einem diskontinuierlichen Feststoffmischer
分散和传输对不连续固体混合器中低浓度颗粒混合物混合行为的影响
- 批准号:
197163741 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Research Grants
In situ Analyse des Wachstums und der Morphologie von Nanopartikeln in der Flüssigphase durch Einsatz der Röntgenkleinwinkelsteuerung
使用小角度 X 射线控制对液相中纳米颗粒的生长和形态进行原位分析
- 批准号:
197226765 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Research Grants
Investigation on the Adhesion Mechanisms of Magnetic Composite Particles with the Centrifuge Method
离心法研究磁性复合颗粒的粘附机理
- 批准号:
169268412 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Priority Programmes
相似国自然基金
Simulation and certification of the ground state of many-body systems on quantum simulators
- 批准号:
- 批准年份:2020
- 资助金额:40 万元
- 项目类别:
相似海外基金
Big Data for Fast and Accurate Numerical Simulation of Mechanical Structures
大数据用于快速准确的机械结构数值模拟
- 批准号:
RGPIN-2017-05524 - 财政年份:2022
- 资助金额:
-- - 项目类别:
Discovery Grants Program - Individual
High-Performance Dynamics and Simulation of Mechanical Systems
机械系统的高性能动力学和仿真
- 批准号:
570951-2021 - 财政年份:2022
- 资助金额:
-- - 项目类别:
Alliance Grants
Quantum mechanical simulation of superconducting qubits
超导量子位的量子力学模拟
- 批准号:
2605458 - 财政年份:2021
- 资助金额:
-- - 项目类别:
Studentship
Big Data for Fast and Accurate Numerical Simulation of Mechanical Structures
大数据用于快速准确的机械结构数值模拟
- 批准号:
RGPIN-2017-05524 - 财政年份:2021
- 资助金额:
-- - 项目类别:
Discovery Grants Program - Individual
Big Data for Fast and Accurate Numerical Simulation of Mechanical Structures
大数据用于快速准确的机械结构数值模拟
- 批准号:
RGPIN-2017-05524 - 财政年份:2020
- 资助金额:
-- - 项目类别:
Discovery Grants Program - Individual
Investigating Strategies for Mechanical Ventilation in COVID-19 via Computational Simulation of Virtual Patients
通过虚拟患者的计算模拟研究 COVID-19 的机械通气策略
- 批准号:
EP/V014455/1 - 财政年份:2020
- 资助金额:
-- - 项目类别:
Research Grant
Efficient modelling and simulation of mechanical systems
机械系统的高效建模和仿真
- 批准号:
516462-2017 - 财政年份:2020
- 资助金额:
-- - 项目类别:
Collaborative Research and Development Grants
Mesoscale simulation technique of polymer composite materials for phase separations and mechanical properties
高分子复合材料相分离及力学性能介观模拟技术
- 批准号:
19K15627 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Early-Career Scientists
Construction of link between musculoskeletal simulation and image-based mechanical analysis for development of treatment strategy of bone disease
构建肌肉骨骼模拟和基于图像的力学分析之间的联系以制定骨病治疗策略
- 批准号:
19H02032 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (B)
Efficient modelling and simulation of mechanical systems
机械系统的高效建模和仿真
- 批准号:
516462-2017 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Collaborative Research and Development Grants