浮选搅拌调浆过程特征与机理 中国矿业大学出版社 fb2 pdf azw3 网盘 rtf 免费 下载 txt

Aiming at the problem that there are only few reports on related basic theory research of stirred pulp-mixing in flotation，this book describes and evaluates the stirred pulp mixing process and its effect from several different angles： summarize parameters that are used to evaluate power consumption and mixing time，conclude characteristic parameters that represent circulation and shear properties，and come up with the corresponding evaluation standard for mixing efficiency; according to the distribution regularity of material in tank under different stirring mechanisms，parameters and concepts such as cumulative concentration variance，interval concentration variance，just-suspended capability，poor mixing zone and effective range，etc.are summarized to represent the suspension performance of material; use Computational Fluid Dynamics software-FLUENT to correspond to and evaluate typical flow field characteristics，and deepen the research on the function characteristic and regularity of flow field; combining with theoretical discussion in aspects such as flow field characteristic，mixing process，interaction between particles，dispersion of reagents，evaluation parameters of mixing performance of stirring mechanism and solid-liquid mass transfer in agitated tank，and so on，this hook lays a theoretical foundation for realizing cognition and control of practical pulp-mixing process.

Chapter 1 Origin and occurrence

1.1 Demand of flotation machine system to efficient stirred pulp-mixing

1.2 Demand of flotation column on efficient pulp-mixing

1.3 Demand of fine particle mineral separation on efficient pulp-mixing

1.4 Demand of compact process on efficient pulp-mixing

Chapter 2 Function and application status of flotation pulp-mixing

2.1 Basic functions and realization ways of pulp-mixing

2.2 Industrialization and application of current pulp-mixing technology

2.3 Difficulties and challenges of fine particle pulp-mixing

Chapter 3 Equipment configuration characteristics and R & D dynamics of stirred pulp-mixing

3.1 Basic configuration of pulp-mixing agitated tank in flotation unit

3.2 Contrast analysis of the stirring equipment of flotation unit

3.3 R & D of agitated tank process characteristics

3.4

Chapter 4 Mixing characteristics of stirred pulp-mixing process

4.1 Overview of test research on stirring characteristic

4.2 Basic flow field types under the effect of stirring mechanism

4.3 Mixing characteristic parameters of the stirring process

4.4 Mixing efficiency analysis of the stirring process

4.5 General comments on the mixing performance of conventional stirred pulp-mixing process

Chapter 5 Solid-liquid suspension characteristics of the stirred pulp-mixing process

5.1 Experimental design of the research on solid-liquid suspension characteristics

5.2 Material distribution characteristic under different stirring mechanism...

5.3 Evaluation of the stirring system suspension capability

5.4 Regularity of the function of interval concentration variance

5.5 Analysis of suspension capability of stirring system

5.6 General evaluation of material suspension capability of conventional stirred pulp-mixing process

Chapter 6 Numerical simulation of stirred pulp-mixing process

6.1 Computational fluid dynamics （CFD） and simulation software introduction

6.2 Fundamental governing equations and turbulence model

6.3 Numerical computation

6.4 Simulation of axial flow field

6.5 Simulation of radial flow field

6.6 Simulation of flow field added with draft-tube

6.7 Simulation of flow field added with baffles

6.8 Analysis of influence factors of flow field characteristics in agitated tank

6.9 Comprehensive evaluation of numerical simulation of stirring flow field characteristics

Chapter 7 Stirred pulp-mixing process mechanism

7.1 Flow field characteristics in agitated tank

7.2 Mixing process in agitated tank

7.3 The interaction process among mineral particles

7.4 Diffusion process of flotation reagents

7.5 Theoretical derivation of mixing performance evaluation parameters

7.6 Mass transfer between solid-liquid phases

Chapter 8 Future research and development of pulp-mixing process intensification

8.1 Efficient pulp-mixing based on process intensification

8.2 High efficiency characteristic of stirred pulp-mixing

8.3 Similarity scale-up problem of efficient pulp-mixing equipments

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