Slurry pipeline design pdf

The design slurry yield stress was low, 11 pa, and the pipeline was designed. No attempt is made in this paper to present the equations used in the analysis. Wcrc appendix 1 slurry pipeline design criteria design criteria. Slurry x x vents x x x x x x x x water x x x x x x x x waste treatment x x x x x x x x buried gasoline x 1. Figure 62 warman pipe friction chart 66 figure 63 pipe diameter 67. The pipe lining specialists at abtrex will help you choose the best overall system design to maximize the life of your slurry handling pipe. Pipeline transportation systems for liquids and slurries.

Excellent engineering solutions 4 design, engineering and manufacture of axialflow, piston and piston diaphragm pumps and hosediaphragm pumps employs 400 people 12,000 m. Slurry pipeline systems course saskatchewan research council. Guidelines for the design of buried steel pipe july 2001. Open library is a high quality resource for free kindle books.

Pdf optimum design of slurry pipelines by genetic algorithm. He is responsible for performing and managing thermalfluid system consulting projects for numerous. This document was downloaded from the penspen integrity. Using the bingham plastic rheological model, the impact that slurry rheology has on transitional pipe flow, particle settling in laminar shear flow, losses in valves. The deadline for comments on these revisions is july 31, 2019. The intent of this technical paper is to present in the most practical laymans terms, the considerations, the design processes and the impact of new technologies to current slurry pipeline design. Pdf wcrc appendix 1 slurry pipeline design criteria. Nonsettling slurries flowing in a pipeline exhibit a nearly uniform distribution of particles across the flow section and an axisymmetric velocity distribution and are. Paterson and cooke is an internationally recognized firm that has designed numerous slurry handling installations throughout the world.

Engineering toolbox resources, tools and basic information for engineering and design of technical applications. An understanding of slurry flow enables better slurry pump design and selection, can reduce the. Each chapter is selfcontained, thus the reader requiring information on a particular topic will find it principally in the appropriate section with only a minimum of crossreferencing. An approach to high solids slurry pipeline design ausimm. Experimental investigation of slurry flow university of leeds, 2 months internship. Oil and gas pipeline design, maintenance and repair. Thus, the main task to improve them is to increase their efficiency and operational life. It was found that the existing calculation methods for critical deposition velocity and.

To illustrate how two phase slurry flow behaviour is different from conventional newtonian systems. Walters has developed software in the areas of incompressible and compressible pipe flow, waterhammer, slurry systems,operational problems and get the facility operating. Plant design for slurry handling j o u r n a l p a p e r the journal of the southern african institute of mining and metallurgy volume 106 nonrefereed paper october 2006 689 figure 2laminar settling pipe data and twolayer model predictions for sandclay suspensions in various pipe sizes7. Corrosion and erosion are other aspects that have to be covered when designing aqueous slurry pipelines. It is derived by applying an appropriate design factor, df, to the hydrostatic design basis, hdb. Slurry piping system, like nay other system, consists of slurry pumps, pipelines and valves. Both the calculation tool and design guidelines were then applied into a practical case example. Schedule 80 pipe will use more material and therefore costlier to make and. The course focuses on applying the basic principles of slurry pipeline flows to actual design situations, including conventional slurry and thickened slurry paste systems. Application of innovated models article pdf available in international journal of the society of materials engineering for resources 202. In transport systems for slurries its important to avoid settling of solids by keeping the fluid velocities in the pipe lines above. Pdf solid liquid flow slurry pipeline transportation.

Slurry piping system, like any other system, consists of slurry pumps, pipelines and valves. The multidiscipline ldp group undertakes all phases of pipeline engineering, from studies to detail design, construction support, commissioning and operator training. A prerequisite to detailed design of any slurry pipeline system is a definition of the hydraulic behavior of the material to be transported. The design of a slurry pipeline entails predicting the power requirement per unit solids delivered over a. Guidelines for the design of buried steel pipe july 2001 i acknowledgments. To show some of the types of slurry that can be transported by pipeline. Special considerations relevant to this systems are introduced by the fact that slurry in not homogeneous phase unlike gas or liquid. All oil sands slurry piping is made of carbon steel, but pipe thickness can vary from as little as 38 to as much as 34. All permanent giw test loops are fed by centrifugal slurry pumps. Slurry pump handbook 2009 fifth edition electronic version february 2009. This paper discusses the operational aspects to consider when executing a pigging campaign in a slurry pipeline, what special procedures may be required and how pipeline design issues that may affect pigging are overcome in pig design.

Caldera custom designs inline chokes specific to customer needs in size, pressure class, and materials. These ceramiclined chokes drop the pressure by restricting the flow area which dissipates the energy from the elevation head customized design for specific needs. Hydraulic design of slurry pipeline systems onepetro. The first paper presented at paste06 covered design criteria development, characterisation test work and pipeline flow behaviour modelling. Obviously, thicker piping is more expensive to install but will not need to be rotatedreplaced as often. Typical industrial instances of slurry handling are. Design related activities associated with the slurry pipeline system will include a system hydraulic analysis and a sediment critical velocity analysis for the dredged slurry. Schedule 80 pipe will provide greater factor of safety allowing it to handle much higher design pressures. Avoid settling of solids in slurry transport systems with flow velocities above certain levels. To stress the importance of understanding the nature of slurry flow when designing slurry pipelines. If you are not sure about the type of slurry, the choice of pump, the design of the pipe system.

Pipeline design characteristics of some industrial pastelike slurries. The exact maintenance interval is a function of slurry velocity and pipeline thickness. This paper summarizes the analytical procedure utilized by bechtel petroleum, inc. The tool can be used for sizing of pipes and pumps. Pdf the paper presents a design procedure for horizontal pipeline systems, such as those used in bulk solids handlingtransportation in. To provide a deeper understanding of the calculations, a manual calculation example is given in the appendix of the book. Employed construction equipment is described for each executed project. The method for establishing the hydrostatic design stress for pe pipe is described in chapters 3 and 5. Introduction nov fiber glass systems fiberglass reinforced epoxy and. Convention an introduction to the design of long distance. Process piping fundamentals, codes and standards module 1 a.

Inline chokes for pressure letdown in slurry pipelines. Excellent engineering solutions 3 weir minerals netherlands b. Due to the abrasive properties of slurry, the pipelines can be lined with highdensity polyethylene hdpe, or manufactured. Slurry piping systems, its design and instrumentation.

Inline chokes are positioned in series at choke stations within slurry transport pipelines that drop in elevation. Transportation of bulk materials in the form of a slurry through piping systems is a most efficient and effective mechanism. The top of the earth dike over the inlet pipe, and those dikes carrying water to the pipe, shall be at least one 1 foot higher at all points than the top of the inlet pipe. Bhatia 5 schedule 80 steel pipes will be heavier and stronger than schedule 40 pipe. Specialty testing can be conducted with other pump types as illustrated here by a membrane. The pressure and flow rate data generated is used to develop a pseudoshear diagram for the purposes of system design. A transportation problem is formulated to determine the pipe. This paper outlines an approach to high solids slurry pipeline design with data generated from a closed pipe loop test system. Following this approach enables the design of a full pipe flow system maximising system life and. The pipe slope drain shall have a slope of 3 percent or steeper. A mixture of the ore concentrate and water, called slurry, is pumped to its destination and the water is filtered out. The mogas tracking seat design results in the only true bidirectional ball valve for slurry. Piping systems can take many forms from overland pipelines to mineral processing plants, coal washeries and the like. Detailed report is around 50 page document comprising of 2 tables and 9 figures.

A slurry pipeline is a specially engineered pipeline used to move ores, such as coal or iron, or mining waste, called tailings, over long distances. Design of pe piping systems 159 the hydrostatic design stress, hds, is the safe longterm circumferential stress that pe pipe can withstand. Pdf various applications of slurry transportation through pipelines exist. For large pipelines many design considerations are needed for each valve component before simply enlarging a smaller size valve. A correctly dimensioned slurry pump must be capable of overcoming the losses caused by friction in the pipes and. The need to transport slurry through pipeline is ever increasing as demand for metal products throughout the world increases. This code prescribes requirements for the design, materials, construction, assembly, inspection, testing, operation, and maintenance of piping transporting aqueous slurries of nonhazardous materials, such as coal, mineral ores, concentrates, and other solid materials. In the free section of the our site youll find a ton of free books from a variety of genres. Best sites for books in any format enjoy it and dont forget to bookmark and share the love. The slurry travels at a velocity just under 6 feet per second, but the precise speed also depends on. The transport system must be designed as an integrated unit and the interaction of all the components need to be considered. Pipeline design characteristics of some industrial pastelike slurries g. Deposition velocities of nonnewtonian slurries in pipelines pnnl. The successful design of a thickened or paste tailings system requires that the system is designed to accommodate the effect of the high density slurry on pumps, pipelines and the overall system operation.

Long distance pipeline transportation of ore slurry. High density slurry and paste tailings, transport systems. To briefly discuss the impact of pipe wear on slurry systems. At the end, this paper presents the current state of strategies and methodologies for slurry pipelines construction. The results from the two analyses will be used to select the optimal pipe size and rating, pump horsepower requirements, and slurry flow velocity requirements. This paper discusses centrifugal pump performance derating for nonnewtonian slurries, and hydraulic and mechanical design of paste and thickened tailings systems. Submit comments, requests for correction or changes on these revisions at the link below and indicate 2019 draft pdm in the revision field. Slurry flows in metallurgical process engineering aaltodoc. Pipeline transportation systems for liquids and slurries asme code for pressure piping, b31 an american national standard asme b31. Pipeline design characteristics of some industrial paste.