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Dredge Yard in Europort Exhibition 2015

Dredge Yard attended the Europort Exhibition 2015 in Rotterdam to present its range of dredging and mining equipment and components. Our team took part in discussions about developments of the dredge and mining products. We showcased scaled models of our cutter suction dredgers. Visitors of our exhibition booth could also look at product samples of our dredge cutter head and dredge ball joint.

Our showcase at the Europort Exhibition 2015

This year in Europort exhibition 2015, Dredge Yard introduced two new models of dredgers. The first one is the Sediment Dredger, also known as an Auger Dredger. Dredge Yard engineered and manufactured this dredger for a desalination plan from the Gulf region.

The second one is the CSD450, a versatile cutter dredger with a discharge pipe diameter of 450 mm. The CSD450 is very easy to maintain and on top of that it is affordable and reliable. Dredge Yard plans on building the CSD450 in stock in The Netherlands to reduce delivery times to a minimum.

Dredge Yard gave an interview in Dockyard Magazine

Dredge Yard interview in Dockyard Magazine

Dockyard magazine is a monthly publication with regular up to date news feeds and technological developments from maritime industry.

It has always been a demand for state-of-the-art dredging equipment to meet the requirements in the market. Dredging equipment are influenced by a variety of factors such as the location of the area that needs to be dredged, the placement side of the sediment, type of soil, environmental conditions, safety hazards, lead time, leakage proof systems, etc. The discharge line in dredging has become the prime focus for engineers to optimize the quality of dredging and reduce overall cost. Improved efficiency of the components used in the discharge line has significantly affected in lowering the cost of a project. The discharge line depends on the project size and requirements. A survey conducted on the power consumption areas of the dredger shows that the discharge line is taking the biggest part of the used power generated on board.

Factors upon which Power Consumption of the dredgers depends

• Discharge length
• Bends and height of discharge area
• Type of pipe joints

Power consumption in percentage

• For Cutter Suction Dredger(CSD) 40% – 70%
• For Trailing Suction Hopper Dredger(TSHD) 30% – 60%

What’s trending in dredging?

The components involved in discharge line are mainly pipe spools and coupling systems.

Dredge Yard is giving an insight into the coupling systems solutions available for discharge line to have better production depending on customers’ needs.

1. Quick coupling Ball joints

There is a range of cost effective, high strength and wear resistant steel ball joints from size DN 400 to 1200 mm. These ball joints are designed and produced by Dredge Yard with latest CAD technologies and years of experience in the dredging field.

Benefits:
• Quick coupling
• High strength
• Easy assembly
• Easy maintenance

2. Ball joints with open liner

To prevent blockage of flow and acceleration of fluid inside the ball joint an addtional liner can be installed in the ball instead of welding the pipe through the ball.
Dredge Yard CFD simulations shows a huge improvements on pressure drop saving up to 50%. Concave liner has one end with the same size as the pipe inner diameter. Other end of the concave liner is bigger than the pipe inner diameter. The diameter of the liner depends on the turning angle of the ball joint.

The benefits are:
• Less pressure drop
• Replaceable liner
• Less wear due to lower speed
• Cost-effective
• Flow friendly
• Eco friendly

3. Bearing Ball Joint

This is a ball joint that is provided with two bearing rings made either from bronze or from duplex steel. This must be done in combination with a duplex ball.

The benefits are:
• No need for use of grease or lubricants
• The ball is more flexible than carbon steel ball joint
• The ball joint has longer life time as duplex is harder than carbon steel
• The liners are replaceable
• Easy dismanteling cause there is no rustweld

4. Spine Hose

A more flow friendly solution is the use of a new introduced spine hose by Dredge Yard that has rubber on the outer side and steel rings (ball and gland) in the inside.

The benefits are:
• Flow friendly resulting in less friction
• Wear resistant inner core
• Lower in weight compare to ball joints
• Easy maintenance by replacing only worn out rings
• Flexible (15 degrees per meter)
• Can’t be folded or collapsed
• Flexible in all directions
• Greaseless
• Environmental friendly

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Dredge Yard in Dredging Summit & Expo 2014 of WEDA

Dredge Yard participate at WEDA

Dredge Yard participated in the Western Dredging Association (WEDA) and Texas University’s Dredging Summit and Expo 2014 that took place at the Fairmont Royal York Hotel in Toronto, Canada.

The participants of the event were mostly leading organizations in dredging and port industry, maritime professionals and experts on environmental issues that exchanged the knowledge in fields related to dredging, marine engineering and environment.

Dredge Yard’s representatives were Basel Yousef, the CEO and Iulia Berchiu, the Marketing Manager of the company.

Two solutions

“Expanding the dredging world” was the theme for the event in which Basel Yousef has covered the “Fuel Saving Solutions” topic that is one of the most debated subject among all the industries.

Dredge Yard presented two solutions for solving major problems, one of them being the inflexibility of the dredge ball joint and the other one being the blockage of the flow.

Blockage

To solve the inflexibility of the ball joint that occurs due to the rustweld that follows after rusty surfaces, Dredge Yard presented a new design called bearing ball joint. This dredge component is featured with additional bearing liners allowing the ball joint to move easier and to have less friction against tilting moments.

For the blockage of the flow that is created by the ball joint when it is tilted up to its maximum bend angle, Dredge Yard presented a new design having a concave ball liner that allows the mixture to flow easier and have no blockage.

Blockage of the mixture results in local increase of flow speed that has a positive effect in pressure drop.

This new ball joint is producing less friction than conventional ball joint and is saving fuel for the entire dredge operation as the most power is consumed by discharging mixture over the dredge pipe line.

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Dredge Yard delivers heavy duty dredge ball joints to Van Oord

The dredge ball joints for Van Oord are suitable for pipes with an inner diameter of 900mm. They handle a working pressure up to 30 bar. The components are of a heavy-duty design for pumping water and sand for long distances. Dredge Yard tested the dredge ball joints in its special equipped facilities in Turkey, to assure high quality. The ball joints underwent thorough hydrostatic testing. Then they were tilted by hydraulic force to simulate working environments.

Heavy duty testing

Dredge Yard’s team of engineers managed and controlled the entire production and testing. They therefore relied upon their vast experience in casting, machining, assembly, testing and inspections.

All ball joints were delivered by trucks directly from Dredge Yard’s facilities in Turkey to Van Oord in the Netherlands, to ensure shortest delivery time.

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Dredge ball joints 1000 and 900 delivered by Dredge Yard to MEDCO in Qatar

The dredge ball joints for the pipes size of 1000 mm are suitable for 30 bar working pressure. While the ball joints for the pipes size of 900 mm are suitable for 20 bar working pressure.

Dredge Yard facilities

All ball joints are designed and produced in Dredge Yard’s facilities with partners in The Republic of Turkey. There they used the latest production technologies and casting expertise. Both types undergo thorough testing and inspections during and after production. Examples of these tests are simulating working pressure and dredge ball joints movements.

Dredge Yard is making steady progress with the expansion plans for the production and assembly of dredging components needed for dredgers and dredge pipe lines.

Production of dredge ball joints

Dredge Yards team of engineers managed and controlled the entire production. For that they relied on their vast experience in casting, machining, assembly and inspections. Our customers may witness any test in Dredge Yard’s production facilities.

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