dredged slurry Articles

  • Monitor Dredging Slurry Flow from Outside the Pipe

    Dredging Equipment Manufacturers Choose Non-Contacting Greyline Flow Meters The Challenge Thousands of dredges are operated to maintain navigation channels in our rivers, lakes and harbours and to mine sand and gravel for the construction industry. Managing and optimizing production from a dredge requires continuous monitoring of pipeline pressure, vacuum ...


    By Greyline Instruments Inc.

  • Overview of dredging concept, including automated dredging, with liquid waste technology dredges

    The RUNT Model RCLPEF, an electrically powered remote controlled dredge, is designed to remove sediments from the bottom of waterways, ponds, and settling lagoons. In situ solids are excavated and transported as a slurry through a piping system to a remote location. Foam filled, steel pontoons provide the necessary flotation to support the machinery and equipment in the waterway. Principal ...

  • Case study - harbor dredging

    Location: Mexico Year: 2011 Working contest Harbor dredging in Mexico The Problem Pumping heavy slurry with high concentration of solid in order to speed up dredging operation. Start to work 3 weeks after first contact with Dragflow. Our solution Dragflow ...


    By Dragflow North America

  • Case study - harbor dredging

    Location: Mexico Year: 2011 Working contest Harbor dredging in Mexico The Problem Pumping heavy slurry with high concentration of solid in order to speed up dredging operation. Start to work 3 weeks after first contact with Dragflow. Our solution Dragflow HY85/160HC with cutters to ...


    By Dragflow S.r.l.

  • The daily maintenance of slurry pump

    1) TheSlurry pump suction piping system does not allow leakage phenomenon, into the pool pump can pump through the grille Multi-stage pumps should be consistent with requirements ...


  • Dredging Short Courses

    By Eric Lillberg, SRS Crisafulli Senior Applications Engineer When I first started as an applications engineer for SRS Crisafulli, I searched for information on the subject of dredging. I was surprised to find there was very little non-commercial content available. I have since found a pair of short courses, offered annually by Texas ...


    By SRS Crisafulli, Inc.

  • Slurry Phase Biological Treatment

    Slurry phase biological treatment involves the controlled treatment of excavated soil in a bioreactor. The excavated soil is first processed to physically separate stones and rubble. The soil is then mixed with water to a predetermined concentration dependent upon the concentration of the contaminants, the rate of biodegradation, and the physical nature of the soils. Some processes pre-wash the ...

  • Effects of Slurry pump expeller

    Expeller not only with sealing effect, but also can serve to reduce the axial force. The axial force in the slurry pump is mainly caused by the liquid pressure acting on the impeller and the rotating part of the composition of gravity. So it is easy to know, in the same identical performance parameters, slurry pump axial force is stronger ...


  • Kerr-McGee dredging case study

    Application:Clean and dredge paint pigment residuals Dredge Used: LWT 7MAU Series Pit Hog™ Dredge Project Summary: Electric manned automated dredge with 3 Krebs cyclones with a capacity of 2,100 gpm, magnetic flow meter to monitor pump performance, slurry density meter to maintain consistent percent solids by varying traverse speed, and ...

  • Case study - mine pond dredging

    Location: Indonesia Year: 2006 Working Context description The mine where Dragflow dredger is working is one of the biggest gold and copper mine in the world located in the province of Papua in Indonesia  near Puncak Jaya, the highest mountain in Papua. The problem The customer was looking for ...


    By Dragflow North America

  • Hydraulic Dredging: A cost effective solution for most dredging tasks

    The vast majority of dredging jobs require removal of solids to depths of 30 feet or less. Several features enable hydraulic dredges to be the solution of choice for these applications. First, what are hydraulic dredges and how do they compare with alternative mechanical dredge types? Hydraulic dredges create slurries, combinations of solids and water, pump the slurries to the ...


    By SRS Crisafulli, Inc.

  • Dredging Technology – Underwater Excavation and Construction

    The presence of water is ussualy considered a nuisance in construction, particularly when excavating removing water is common practice. In some cases however, water can be a very useful tool that may simplify things greatly. With the “flooded excavation principle”, the construction site is flooded after the retaining walls have been installed (e.g. sheet pile). When the ...


    By BBA Pumps

  • Case study - mine pond dredging

    Location: Indonesia Year: 2006 Working Context description The mine where Dragflow dredger is working is one of the biggest gold and copper mine in the world located in the province of Papua in Indonesia  near Puncak Jaya, the highest mountain in Papua. The problem The customer was looking for a complete ...


    By Dragflow S.r.l.

  • Dredging Abrasive Materials? Learn about SRS Crisafulli’s New Dredge

    The Rotomite-6000-C, SRS Crisafulli’s newest self-propelled dredge, broadens the Rotomite-6000’s capabilities to include removal of highly abrasive materials. The Rotomite-6000-C also increases the customer’s return on investment (ROI) by cutting sludge ...


    By SRS Crisafulli, Inc.

  • Need A Dredge For A Small, Difficult Application?

    SRS Crisafulli’s new shallow draft dredge, the Rotomite SD110, enables operators to dredge in small, shallow, confined areas in a minimum of 17 inches of water. This compact, self-propelled, steerable  machine can dredge just about anywhere without the use of cumbersome cabling. The SD110 is made entirely of aluminum, and is equipped with a hydraulic ram that puts a great amount ...


    By SRS Crisafulli, Inc.

  • Improve Slurry Pump Working Life

    Close suction valve before stopping slurry pump. Enough clean water should be supplied to pump all the slurry in pipeline out to avoid solid precipitated in the suction tube and volute line. Otherwise, there will be situations that ...

  • How to select the best Slurry Pump

    Slurry pump service life has the relationship with cost of production and production maintenance convenience. Selection unreasonable, may shorten the life of the slurry pump or adverse impact on production. So, bellow we will talk how to select suitable slurry pump to extend the service life and achieve maximum economic benefits. From design side, we analysis the three main factors affecting the ...


  • Dredging Q+A: Top 8 Questions Answered

    We strive to provide our customers with as much information as they need to make informed decisions about the dredging equipment they choose. So we compiled some of the questions (and answers!) asked most frequently for your quick review. Q: What kinds of dredges does SRS Crisafulli make? A: SRS Crisafulli produces hydraulic ...


    By SRS Crisafulli, Inc.

  • Rotomite dredging iron mill scale-case study

    Crisafulli's Rotomite-6000. Dredging highly abrasive mill scale. Customer: The customer purchased its first SRS Crisafulli Rotomite, a Model 180P, in August 1997, and purchased its second Rotomite, a 6000 model, in the summer of 2007. Application and reason for dredging: The customer provides slag processing, metal recovery, material ...


    By SRS Crisafulli, Inc.

  • how to improve slurry pump suction distance

    When the slurry pump suck slurry from the water pond, since inverted suction type in used, it can make the suction tube filled with water, after pump starts, eliminating the need for i ...


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