slurry systems handbook

[...]... Plunger Pumps Diaphragm Piston Pumps Accessories for Piston and Plunger Pumps Peristaltic Pumps Rotary Lobe Slurry Pumps The Lockhopper Pump Conclusion References 10 Materials Science for Slurry Systems 10.0 Introduction 10-1 The Stress- Strain Relationship of Metals 10-2 Iron and Its Alloys for the Slurry Industry 10-2-1 Grey Iron 10-2-2 Ductile Iron 10.3 White Iron 10-3-1 Malleable Iron 10-3-2 Low-Alloy... ancient processes involving slurry flows; the dredged materials contain a wide range of particles, tree debris, rocks, etc Mining has employed the concept of slurry flows in pipelines since the mid-nineteenth century, when the technique was used to reclaim gold from placers in California Long-distance slurry pipelines have evolved in all continents since the mid 1950s Some slurry mixtures consist of... help of manufacturers of slurry pumps Examples include the Saskatchewan Science Research Center in Canada; the GIW research lab of KSB Pumps (USA), described by Wilson et al (1992); the Slurry Research Lab of Mazdak International Inc (U.S.A.); Texas A&M University (U.S.A.); and Melbourne University (Australia), among others 1-4 DENSITY OF A SLURRY MIXTURE The density of a slurry mixture is a function... Combustion of Coal–Water Mixtures (CWM) 11-3-9 Pumping Coal Slurry Mixtures Limestone Pipelines Iron Ore Slurry Pipelines Phosphate and Phosphoric Acid Slurries 11-6-1 Rheology 11-6-2 Materials Selection for Phosphate 11-6-3 The Chevron Pipeline 11-6-4 The Goiasfertil Phosphate Pipeline 11-6-5 The Hindustan Zinc Phosphate Pipeline Copper Slurry and Concentrate Pipelines Clay and Drilling Muds Oil Sands... Specific Gravity and Hardness of Minerals A.1 Appendix B Units of Measurement B.1 Index I.1 abul-1.qxd 2/28/02 9:12 AM Page 1.1 PART ONE HYDRAULICS OF SLURRY FLOWS abul-1.qxd 2/28/02 9:12 AM Page 1.3 CHAPTER 1 GENERAL CONCEPTS OF SLURRY FLOWS 1-0 INTRODUCTION Slurry is essentially a mixture of solids and liquids Its physical characteristics are dependent on many factors such as size and distribution of... Banana Screens Slurry Classifiers 7-7-1 Hydraulic Classifiers 7-7-2 Mechanical Classifiers 7-7-3 Hydrocyclones 7-7-4 Magnetic Separators Flotation Circuits Mixers and Agitators Sedimentation 7-10-1 Gravity Sedimentation 7-10-2 Centrifuges Conclusion Nomenclature References 8 The Design of Centrifugal Slurry Pumps 8.0 8.1 8.2 8-3 8-4 8-5 8-6 8-7 8-8 8-9 8-10 Introduction The Centrifugal Slurry Pump Elementary... disposal, or soil reclamation Understanding sinking and critical speeds are essential when sizing the pipeline A brief introduction to slurry flows in extractive metallurgy serves the purpose of focusing on the essentials of the application of slurry flows to engineering Natural slurry flows, even in very dilute forms, can have negative effects on the environment if not properly managed Some of the great... Engineers in the twenty-first century will have to learn to manage the siltation of large man-made lakes using the science of dredging and piping slurry flows 1.3 abul-1.qxd 2/28/02 9:12 AM 1.4 Page 1.4 CHAPTER ONE 1-1 PROPERTIES OF SOILS FOR SLURRY MIXTURES Slurry flows occur in nature in different ways They are often associated with the transportation of silt from one region to another Strong rains... and Egypt The Pharaohs built an advanced civilization on the silt brought to them by the Nile’s natural slurry flows The “gift of the Nile” was silt that would not have been deposited without a form of natural slurry flow A simplified flow sheet (Figure 1-1) of the Nile illustrates this natural slurry flow The steps in the process are: ț Water from the rains is the carrier liquid ț The flow of water... a dilute slurry (This is a step of slurry formation.) torential rains Uganda/Kenya Sedimentation at Bahr El Ghazal floods rains Ethiopia The Saharan Desert silt transported by the White Nile floods Nubia Sudan Egypt sedimentation by gravity of the silt after the flood (Egypt is the Gift of the Nile) silt transported by the Blue Nile FIGURE 1-1 There is no better example of the importance of slurry to . engineering of slurry systems re- quires various empirical and mathematical models. The engineering of slurry systems and the design of pipelines is therefore fairly complex. This handbook targets. on the hydraulics of slurry systems. Chapter 1 is a general introduction on the preparation of slurry, the classification of soils, the siltation of dams, and the history of slurry pipelines. Chapter. ONE HYDRAULICS OF SLURRY FLOWS 1 General Concepts of Slurry Flows 1.3 1-0 Introduction 1.4 1-1 Properties of Soils for Slurry Mixtures 1.5 1-1-1 Classifications of Soils for Slurry Mixtures 1.5 1-1-2