Dredge pump speed is a critical variable in determining the success or failure of a dredging operation. The following short course provides useful guidance on how fast to run a dredge pump and vaporizes gobs of misinformation on the subject. We could make a cheaper dredge, but it wouldnt work as well or last as long. The eddy pump booster pump is ideal for high viscosity and high specific gravity material pumping with significantly less downtime and maintenance issues compared to conventional pumps. Design and technology the extraheavy, hard metal lcc slurry pumps feature heavier sections and modified hydraulics. The mc 275d boasts a powerful 300 hp 224 kw diesel engine that powers a hichrome 3,000 gpm 681m3hr. Froth pumps define by application the handling of frothy slurries, mainly in flotation. The key is to adjust the head restrict the dredge pipe so that the system moves a continuous, fullcapacity load of solids to discharge at the target velocity. Metsos total solution of pumps, parts and service tackle even the most abrasive applications and help our customers reduce operating costs. Sec the specific energy consumption sec is defined as. Slurry pump name by application process applications also provide the terminology, typically.
Slurry transport of settling slurries and cutting processes in sand, clay and rock are already covered in two other books by the author. Pdf extensive field measurements on a dredging installation with a pipeline that is. Download pdf slurry transport using centrifugal pumps, by k. Pipeline elevation can increase materials friction and decrease its velocity. The manufacture of fertiliser is another process involving massive slurry transport operations. Using the high head slurry pump can solve this problem. Horizontal slurry pumps are applied in various slurry transport applications.
Videos dredges, slurry and dredge pumps eddy pump oem. Ellicott dredges, llc wishes to inform our customers, vendors, and prospective buyers that we are continuing our manufacturing operations to guarantee the supply and distribution of essential critical infrastructure equipment for marine environments and global waterways. Designed by mud cats expert group of engineers and made in the usa from 100% usa content. Slurry pumps are the mechanical devices utilized for pressuredriven transport of a fluid mixture aka slurry. Slurry transport is used in dredging and mining to transport solidliquid mixtures. The fiveday course is designed for university educated engineers. The centrifugal dredge pump in the dredger generates this pressure, but as a result of the resistance in the pipeline, the velocity of the slurry will gradually decrease.
Cfd characterization and optimization of the cavitation. A pump curve is a graphical representation of a pumps ability to produce flow against a certain head. A model has been developed to characterize the cavitation phenomenon in dredging centrifugal pumps. Ignorance, pump salesmen, bad pump curves and old pumpers tales have created such a fog of misinformation that many dredgers are clueless as to what speed they should run their dredge pumps. The eddy pump linersafe auger suction dredge is also remoteoperated and partially autonomous. To provide a deeper understanding of the calculations, a manual calculation example is given in the appendix of the book. Rubber lined pumps are available for handling the finer particle. Transport solids via pipeline from underwater point a to distant point b. Pdf the estimation of production and location of pumps. Pdf the estimation of production and location of pumps for. Slurry transport using centrifugal pumps books pics. Powered by your choice of 4 thru 12inch eddy pumps. Pdf the estimation of production and location of pumps for a. The centrifugal slurry pump uses the centrifugal force generated by a rotating impeller to impact kinetic energy to the slurry, similar to how a waterlike liquid would move through a standard centrifugal pump.
Matousek dredge pumps and slurry transport free ebook download as pdf file. The length of the pipeline may be as long as several miles. Slurry pump name by duty the term slurry pump, as stated, covers various types of heavyduty centrifugal pumps used for hydraulic transportation of solids. Explore our range of slurry transportation services. Slurry transport using centrifugal pumps springerlink. This 6inch dredge pump makes easy work of thick drilling mud, for a customer demo.
Industrial dredges our industrial dredges are a step up from the mini dredge variety, featuring a sturdy aframe capable of mounting larger, more powerful slurry pumps to tackle your project. The science is matching a curve that is accurate for your project, leading to the proper pump selection and best efficiency. Pdf hydraulic dredging uses centrifugal pumps to transport dredged material and often. When a leading oil sands operator learned of the vertical svp84 slurry pump giw provided to the thames river project, they approached giw for a similar solution that could be adapted onto a barge for pumping reclaim water and light tailings out of a tailings pond. Introduction to slurry transport via pipelines start dredging. With wear parts in either hard metal or rubber, horizontal slurry pumps are often larger, more powerful and offer higher capacity than vertical slurry pumps. Slurry pumps cover pumping of mudclay, silt and sand in size range of solids up to 2mm. Pumps and slurry transportation course pumping slurry is a complex and important process. October, 2004 25 effect of pump position on operational limits if a pump e. This means that mines do not have to put people out on the auger suction dredge which can be hazardous. As slurry flow through the dredge pump decreased and the pump speed remained the same, recirculation of abrasive material within the dredge pump increased.
Other processes like hopper sedimentation and erosion, water jet fluidization, cutter head spillage, pump pipeline dynamics and clamshell dredging are covered in this special topics edition. Mud cat invented the auger dredge and still leads the industry in technology, quality, and support. Miedema teaches or has taught courses on soil mechanics and soil cutting, pumps and slurry transport, hopper sedimentation and erosion, mechatronics, applied thermodynamics related to energy, drive system design principles, mooring systems, hydromechanics and mathematics. Mud cat dredges provides access to both new and used dredge equipment. Centrifugal pumps are particular suitable for pumping solids due to a small number of moveable part. Map the bottom and automate the process for large jobs. The wide range of ihcs products supports every dredging need. Subdredge remote operated submersible rov dredge pump. This training provides extensive theoretical background information in combination with.
To transport slurry via pipelines, a certain pressure is required. Metso offers a comprehensive line of horizontal slurry pumps to serve a wide range of slurry transport applications. Eml 316l experiment 3 pipe friction laboratory manual mechanical and. Our patented pump technology outperforms all centrifugal, vortex and positive displacement pumps in a variety of the most difficult pumping applications. Yet the brandnew way is by gathering the soft file of guide slurry transport using centrifugal pumps, by k.
Dredge pumps are a special category of heavy duty slurry pumps that are. All designs use the highest quality components that are fully integrated into the dredge system. This leads to downtime for maintenance, hurting your bottom line. October, 2004 12 conservation of mass in 1dflow for a circular pipeline of two different diameters d 1 and d 2 v1d1 2 v 2d2 2 m3s v1 d1 v2 d2 dredge pumps and slurry transport. Dredge pumps cover pumping of solid sizes up to and above 50mm. High head slurry pump,sand dredger solutions manufacturer. Optimizing pump selection and performance to lower your operating costs.
Since centrifugal pumps respond to a change in density and solids properties at the. The fluid mixture by and large consists of water as a liquid with solids being minerals, sand, gravel, human waste, drilling mud or most of the crushed materials. October, 2004 conservation of momentum newtons second law of motion. They are suited for severe slurry duties and feature twostage pressure capability. The remoteoperation aspect of the auger dredge allows for minimally manned dredging operations, saving additional expenses for the client. October, 2004 12 conservation of mass in 1dflow for a circular pipeline of two different diameters d 1 and d 2 v1d1 2 v 2d2. After a short overview of dredging as a whole, this course concentrates on principles of pipeline transport of slurries and on the design of a transportation system comprised of pipelines and slurry pumps. Many types of pumps are used for pumping slurries, but the most common slurry pump is the centrifugal pump pictured above. Modeling of nonstratified mixture flows pseudohomogeneous flows newtonian slurries nonnewtonian slurries dredge pumps and slurry transport. As a single dredge may be required to maintain a throughput of 7000 tonnes of slurry per hour or more, very large centrifugal pumps are used. Ksb pumps deliver dredging solutions that boost productivity and profits. Auger dredge remote operated eddy pump slurry pumps. In harsh conditions with sand, sludge, rocks, slurry, normal dredge pumps clog, wear and fail more often.
Our extensive experience in slurry transport, plus advanced engineering design methods and metallurgy, allows giw to offer a new generation of dredge pumps for a broad range of applications. In addition, because pipeline was added after the dredge pump s full speed was achieved, the dredge pump is operating at a lower pump efficiency. More info eddy pump is a usa based dredge and slurry pump manufacturer. A particular focus has been in modeling slurry transport for dredging estimating. Pumps built from high chrome white iron hard metal castings are ideal for transporting large particle slurries.
Oe4625 dp and slurry transport dredging engineering. Not the case with the eddy pump, since we have the tolerance to pump objects up to 11 inches to ensure maximum uptime and production rates in any industry dealing with. The dredged sediment slurry will be transported via an approximately 19,826 feet highdensity polyethylene hdpe pipeline to a remote sediment consolidation area sca for dewatering and consolidation. Apr 21, 2014 the training institute for dredging tid scheduled its advanced pump and slurry course named slurry transport in dredging and wet mining for may 1922, 2014, in their training facilities in.
The customer in jiangsu province from china undertook the contract for the subway shield mud transportation, and needed to transport the mud from the subway shield machine to 3000 meters designated location. Testing a dredge pump at the giw hydraulic laboratory figure 1. The subscript w refers to densities and specific gravities of liquids mostly, but not exclusively, water. All eddy pumps can be mounted vertical or horizontal. Metsos range of horizontal pumps covers mill discharge pumps, general slurry pumps, and dredge pumps. The angle at which a pipeline rises as it leads away from a dredge pump. Nonclog explosion proof and submersible pumps for heavy duty industrial use, specs and vid sales, rentals 6192587020. Lcch slurry pumps are available in 6 to 12 inch 150 to 300 millimeters.
The transport system the dynamics of a dredges transport system dredge pump are complex and have a myriad of conditions that can greatly affect the productivity of the dredge. Dredge and dewatering system decommissioning plan parsons p. Download pdf slurry transport using centrifugal pumps, by. It covers essential practical and economic considerations for slurry pumping with centrifugal pumps along with considerable attention to engineering theory. An internal structure of slurry flow under a condition of fluctuating slurry density. Slurry pumps and dredge pumps for high solids eddy pump oem.
The relative excess hydraulic gradient of pump and pipeline. The ammeter testifies to the fact that it requires less energy to pump solids at a low velocity than it does to pump water at a relatively high velocity with a fixedspeed pump. You will be able to explain the physical processes involved in hydraulic slurry transport and perform pump calculations after this advanced four day training. He is or has been also teaching at hohai university, changzhou, china, at. To support your slurry transport needs metso has a wide range of heavyduty slurry pumps in both horizontal and vertical configurations. Our slurry pumps, hoses, pipe spools and valves ensure you can move your slurries to where they need to be.
The emphasis is put on the hydraulic transport of solidswater mixtures with centrifugal pumps and through pipeline systems on a detailed level. In addition to our full line of dredge pumps offered, many lcc and lsa pumps. If you are pumping slurry or viscous material long distances, a booster pump may be needed to increase output. During the training course, emphasis is put on the hydraulic transport of solidwater mixtures with centrifugal pumps and through pipeline systems. Pdf slurry transport using centrifugal pumps download ebook. The transport distance is typically longer than for dredging applications, and chapter 1 figure li. The dredge cuts an even bottom profile down to a maximum depth of 25 ft. With vast experience accumulated over decades, royal ihc is the market leader for the design and manufacture of efficient and integrated dredgers and dredging equipment. Pdf slurry transport using centrifugal pumps download.
In order to illustrate the effects caused by these conditions, we first need to establish a benchmark, under a particular set of conditions, for some various dredge. Automation of a cutter suction dredge dredging engineering. Gather the book slurry transport using centrifugal pumps, by k. Centrifugal pumps design and application download pdf. Manufacturer of highpressure heavyduty industrial pumps for commercial buildings and municipal uses, water transport, sewage disposal. All equipment is powered by eddy pump dredge pumps, which are also available for slurry transport dredge projects. The army corps have adapted the subdredge for use under the name mini robotic submersible dredge or mrsd, of which eddy pump is the oem source. Matousek dredge pumps and slurry transport reynolds number.
Pipeline dredging, dredge pump performance, slurry transport, pipeline dredge scheduling. Safety is our number one priority and we have rigorous measures in place to protect our people, partners and communities while continuing to support our. More to slurry transport using centrifugal pumps course. Conclusions the concentration gradient can be used for the.
The estimation of production and location of pumps for a cutter suction dredge using a long distance pipeline. Slurry enters the casing and is whirled by turning impellers, which force it out of the casing and into the pipeline. Gravel pumps cover pumping of solid sizes up to 50mm. Dredge and dewatering system decommissioning at onondaga lake. With a growing need for tailings reclamation in the oil sands, the need for innovative barge pumping solutions is on the rise. Welcome,you are looking at books for reading, the centrifugal pumps design and application, you will able to read or download in pdf or epub books and notice some of author may have lock the live reading for some of country. If you are not sure about the type of slurry, the choice of pump, the design of the pipe system.
On the discharge side of the main dredge pump, a long pipeline is used to transport the slurry to the disposal location that is typically a confined disposal site. Yet the brandnew way is by gathering the soft file of guide slurry transport using centrifugal pumps, by. In addition to our full line of dredge pumps offered, many lcc and lsa pumps are suitable for dredging applications. Our industrial dredges are built with performance in mind, as they excavate material faster than other styles of much larger dredges, yet are still. A more precise terminology is to use the classification of solids handled in various pump applications.
Our extensive experience in slurry transport, plus advanced engineering design methods and metallurgy, allow us to offer a new generation of dredge pumps for a broad range of applications. Solids transportation in a long pipeline connected with a dredge. Water carries the solids through the pipeline in a mixture called slurry. Hard wearing pump solutions for increased productivity. Ellicott dredges a global leader in dredging systems. Weir slurry pumping manual iv1 symbols used the terms slurry and mixture in this manual are used interchangeably to describe a mix of any loose solids, made up in any proportions and combinations of any particle sizes and any conveying liquid. Eddy pumps are primarily used for high solids, slurry, sludge, and dewatering.
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