Posts

,

Dredge Yard builds ECO200 dredger in stock

Dredge Yard built the ECO200 dredger in stock as part of a program for building several medium size and small dredgers in stock. We can equip the dredger with a cutter head, plain suction dredge or an auger head. These various options make the ECO200 a very versatile dredger. Using an underwater heavy-duty dredge pump can extend the dredging depth. A hydraulic drive controls and drives the heavy-duty dredge pump.

Easily transportable

The entire dredger fits inside standard containers for safe and cost-effective transport to any port in the world. Dredge Yard experts or the clients technical staff can assemble the dredge on site. The ECO200 is designed for one operation and can be easy controlled from the air-conditioned cabin. The underwater dredge pump provides a high ratio of mixture and increased slurry flow that optimizes the production output. The dredger is available for use in May 2017. Contact us for more information

Dimensions of the ECO200 dredger in stock

Length overall 16.2   m
Length of pontoon 11.5   m
Breadth overall 3.0    m
Depth of pontoon 1.2    m
Dredging depth 6.0    m
Design draught 0.8    m

New Website for Dredge Yard

Dredge Yard, dedicated to the market of dredging and mining components, equipment and technology, launched its new website last week. With the new website the focus products will be the ECO200 dredger, ECO350 dredger, cutter suction dredger 450 and cutter suction dredger 550. It gives the visitor the easiest experience to find more information about dredging & mining components.

New website design

The modern but simple web design, readable images and meaningful content made the website more user friendly and clear about the activities they do. Visitors have more overview on the various subjects which are described. Next to the dredger pages there is also information about different components which the company manufacture and supply.

In the near future Dredge Yard will focus on the two smaller dredgers and the cutter suction dredgers. The website will also expand with some great features.

,

Dredge Yard took part in the 4th International Forum of Dredging Companies

Dredge Yard took part in the 4th International Forum of Dredging Companies. Media group PortNews organized the forum in association with FSUE Rosmorport and the International Association of Dredging Companies (IADC). They hosted the forum on the 15th of February 2017, in Moscow, in the Radisson Royal Hotel. The historical buildings along the Moskva river surrounded the hotel and therefore making it a very scenic location.

Global conversation at the International Forum of Dredging Companies

Authorities from around the world gathered at the International Forum of Dredging Companies to discuss subjects as for example the state of planning of dredging in the ports of the Russian Federation. The forum was furthermore about dredging fleet constructions and the implementation of state support measures in terms of construction. We also discussed the implementation of dredging in Russia for 2017 and the new technologies in global dredging.

Cooperation with Russia

Alexey Shifman, Basel Yousef and Judith de Rooij represented Dredge Yard. They gave a presentation about the company presenting our products, services and latest projects. Their presentation focused most of all on a possible cooperation with Russian companies.

,

Dredge Yard sponsors IV International Forum of Dredging Companies

Dredge Yard sponsors the IV International Forum of Dredging Companies in Moscow, Russia. The Forum is held on the 15th of February 2017. Media group PortNews organized it in association with FSUE Rosmorport and the International Association of Dredging Companies (IADC).

Latest technologies

The Forum program is dedicated most of all to the latest technologies in dredging and marine engineering. The speakers and delegates will first of all discuss underwater operations. Other subjects are fleet and equipment involved. Especially relevant are their examples of real projects.

Dredge Yard’s representatives

Basel Yousef, Alexey Shifman and Judith de Rooij represent Dredge Yard at the Forum. There they will give a presentation about Dredge Yards new growth model. They developed this model especially for their clients based on their experience and knowledge. During the forum, Dredge Yard provides information about their products and the possibilities of working together. In conclusion: Dredge Yard looks to the future and develops a new way of cooperation.

 

,

Euro Dredger 450 now available

The Euro Dredger 450, a Cutter Suction Dredger with a discharge pipe diameter of 450mm built in the Netherlands, has been successfully launched and is now available for delivery.

The Euro Dredger 450 is the first Cutter Suction Dredger resulting from the partnership between Dredge Yard and Neptune Shipyards in The Netherlands. Both companies joined forces to enable the building of this multi-purpose Cutter Suction Dredger that is suitable for dredging, soft and medium compacted sand and other sediments up to a dredging depth of 10 m on inland waters, rivers and lakes.

Specifications of the Euro Dredger 450

The Euro Dredger 450 has a total installed power of 866 kW. It consists of 3 dismountable pontoons fixed by a rigid coupling system inside the pontoon. It is designed to be disassembled easily and to be transportable by road.

The high performance dredge pump – entirely developed and manufactured by Dredge Yard – is mounted directly onto the gearbox to save space and reduce the weight, and it is driven directly by a 634 kW diesel engine. A hydraulic power pack of 232 kW is fitted on the main pontoon to supply hydraulic power to the cutter head, winches and spud hoist cylinders.

The hydraulically driven cutter head – developed by Dredge Yard – has exchangeable cutter teeth that come in three types: pick points, narrow and wide chisels. The blades of the cutter head are double curved to allow for a smooth mixture flow through the cutter and into the suction mouth.

The Euro Dredger 450 is the latest addition to Dredge Yards and Neptune Shipyards product range and the companies are already planning the development of their next multi-purpose Euro Dredger.

 

,

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.

,

Developing the largest size dredge pump in dredging industry

As the demand for larger dredgers rises, there is a growing need for developing largest size dredge pump that can reach up to 1,800 mm suction diameter.

The largest size dredge pump is one of the main components of the dredger, and it is critical to achieving production. Dredge pumps also have the biggest power consumer during operation so efforts to reduce the pump’s power needs through smarter design are critical.

Engineering challenges of dredge pumps

Dredge pumps involve more complex engineering challenge than water pumps. They must carry water filled with mixture of several types of soils like mud, fine sand, coarse sand, gravel, stones, and other debris. The mixture of those materials with pumped water doesn’t behave as homogenous fluid as the soil tends to settle down and slide on the pipe bed depending on the flow speed. Another challenge is that pump parts wear quickly. Clogged impellers and breaking vanes also pose risks to pump performance.

Dredge Yard’s largest size dredge pump design

In 2011, Dredge Yard began developing a new range of dredge pumps ranging from 200mm to 1,400mm – the largest size dredge pumps in the dredging industry. These pumps are designed to counter wear problems inherent in dredge pumps. Impellers are designed in multiple categories of 3, 4 and 5 vanes. To resist wear, the pump parts are made from high chromium iron having a hardness of 60HRC. Unfortunately these materials don’t have high elongation properties and are not impact resistant. For this reason, some dredge pumps are built with an outer casing.

The large pumps are connected in series, reaching a final pressure of 30 bar by the 3rd pump. The pumps often weight more than 100 tons for one complete assembly including wet parts, outer casing, plates, shaft, bearing assembly and pedestal.

Size, weight and component resistance, among other factors, create an imposing challenge for dredge pump designers. Demand has recently grown in the market for even bigger dredgers. Dredge pump size must increase from 1,400 mm to 1,600 mm – even 1,800 mm. Larger suction pipes and dredge pumps must be designed to fill the dredgers in less than 2 hours.

New design methods are needed to adapt to the market efficiently. Pumps must be tested and analyzed for their efficiency and performance. Foundries with casting capacity of 50 tons and heavy steel machinery 6 meters in diameter are required when casting and machining the pump case.

Performance analysis of the largest size dredge pump

The size of these dredger pumps makes building a test and analysis laboratory extremely difficult if not impossible. The manufacturer must design and manufacture the pump as a prototype and deliver the prototype to the dredger without testing and performance checks. All performance will be tested in the dredger when it starts working. The design has to be flawless, performance oriented and reliable before its production. Engineers at Dredge Yard test dredge pump performance with computational fluid dynamics (CFD) instead of physical testing. CFD software calculates and simulates the pump performance measurements like flow rate, aeration, cavitation, pumping head, efficiency, power required, and net positive suction head (NPSH).

CFD codes, can provide steady-state simulation, also known as multi-frame reference (MRF) simulation or “frozen blade” simulation, which put the impeller in a reference frame that rotates at the pump speed, while solving for the rest of the pump in the stationary lab frame.

3-D modeling

After achieving the hydraulic design, a basic 3-D pump model is made in several CAD programs. Once the basic design is completed Dredge Yard runs several trials on major FEA calculations on the model to ensure getting the right stiffness and strength of the pump. This model incorporates pressures output from the CFD analysis to determine the wall loadings.

The gap between the impeller and front plate must be tightly controlled in terms of geometric tolerance. If deformation widens the gap, efficiency will drop significantly. The 3-D modeling and FEA process is repeated as needed to ensure the highest safety margin and lowest weight. At 1,800 mm a dredge pump weights approximately 200 tons. Any weight savings from the FEA calculation could be significant.

Design work continues on the 1,800 mm dredge pump. Dredge Yard aims to finalize the development in 2016 and build the pumps for the dredging and mining market.

One of the examples of a geometric tolerance that needs to be tightly controlled is the gap between the impeller and the front plate. If there is a deformation in that area and the gap widens, the efficiency will drop significantly. Besides the impeller gap effect, the stiffening of the pump structure will assure a symmetrical tension on the pump case and plates. As the pump case is of a volute shape and pressure is not evenly spread, deformation could be asymmetric which is not desirable in pump structures.

The 3-D models takes into account such performance measurements as flow rate, head and cavitation for many of the pump’s components.

,

Dredge Yard presents latest developments at WEDA Mexico 2015

Dredge Yard was the Gold sponsor of the WEDA Mexico 2015 Annual Meeting. That meeting took place in the Centro Asturiano de Polanco located in the heart of Mexico City’s bustling Polanco neighborhood. There Dredge Yard presented their latest developments at the WEDA in Mexico.

At the event, our Marketing Manager, Iulia Berchiu and the CEO, Basel Yousef presented our dredging equipment and dredging solutions. In addition, they provided information about Dredge Yards latest projects that are dedicated to achieving the highest performance while protecting the environment and cutting the costs. Some of these projects are:

  • Dis-mountable cutter suction dredger 450 that is under construction in the Netherlands;
  • The ECO200 dredger is designed to be compact, economic and therefore easy to transport;
  • The auger dredger is similar to ECO200 dredger but equipped with an auger head for sediment and sludge dredging. Presumably the auger dredger will be delivered at end of this year.

Dredging opportunities at WEDA Mexico

The WEDA Mexico Annual Meeting 2015 focused on the many dredging opportunities available in Mexico. These opportunities are a result of Mexico’s robust port infrastructure development and investment program. The meeting 2015 brought together professionals around the world to provide expert advice and share ideas. These professionals included Mexico’s Ministry of Transportation, Mexican port authority officials, the U.S. Army Corps of Engineers, the Panama Canal Authority.

According to Frederick Paup, Chairman of the Board Manson Construction Co., the event was informative. The company also appreciates the excellent turnout by the Mexican port authorities’ representatives.

Panama topic was brought up by the International Trade Specialist of the Panama Canal Authority, Javier Gilberto Carrillo Koo. He explained the impact and opportunities involved in the Panama Canal expansion.

Arturo Cors de la Fuente, Business & Institutional Relations Director of the CICE Group (Integral Foreign Trade Corporation) discussed the evolution of Mexican Ports. That evolution is considered a growth approach.

Open to private companies

Arturo Cors de la Fuente states: “Dredging in Mexico has changed during the last years. Before it was a Government activity and only large projects were subject of hiring private companies. Nowadays, the market has opened up to private companies and there are few exceptions. Only the Mexican Navy that holds the dredgers for their own purpose. In the last decade Mexican market has contracted an average of $90 million/year reaching a peak of about $260 million in 7 years. ”

Both foreign and local companies are getting many opportunities at the Mexican dredging market. Juan Ignacio Cruz Lomeli, the GM of Desazolves y Dragados, related that the dredging industry is an activity that demands specialization and therefore can’t be handled by companies without experience.
“The conference filled my expectations in terms of exchanging ideas and networking. And as Ricardo Hernandez, the President WEDA Mexico Chapter, said: I hope this is the first congress of many more because we need to establish a close group of dredging experience here at the WEDA in Mexico.”

,

Dredge Yard at Dredging in India Conference 2015

For the second year Dredge Yard was the key sponsor in India’s biggest Dredging Conference that was hold in Taj Mahal Palace in Mumbai.

The annual event focused on analyzing the key trends and developments, highlight recent government initiatives and discuss the best practices and the most promising technologies related to the dredging industry.

Innovative design

Dredge Yard’s representatives, Teun Boerma (the company’s Sales Manager) and Michel Debo (Operations Manager) explained the high importance in innovative designing and building up efficient and cost effective dredger and dredge equipment.

Michel Debo has also stated that due to the growth demand of dredgers in the Indian region, Dredge Yard considers to start building up in India different ranges of cutter suction dredgers and trailing suction hopper dredgers that will contribute to cutting the costs and ensure time delivery.

“There are numerous dredging projects going on at the moment in India and many others in the upcoming future. The construction of new major ports at Sagar, West Bengal, Andhra Pradesh or Dugarajapatnam will only increase the demand for dredging operations and we are ready and have the expertise to offer our support by starting building up all type of dredgers needed for the Indian demands.” – Michel Debo

Teun Boerma, Dredge Yard’s Sales Manager, shared with the audience all the information about the dismountable cutter suction dredger that is the first of a complete series of versatile cutter suction dredgers with a discharge pipe diameter of 450 mm and that will be complemented with the 350, 500 and 650 versions in the near future.

“Dredging in national waterways is another area of opportunity and the union government has announced plans to convert 101 plus rivers across the country into national waterways which expects an increase in demand for high efficiency dredgers. Dredge Yard range of CSD’s are easy to maintain, affordable and foremost dredgers with high productivity that can be the best option for dredging in India.” – Teun Boerma

 

,

Dredge Yard is showcasing at WEDA Mexico Chapter

The WEDA Mexico Chapter, representing all regions in Mexico, will at its 2015 Annual Meeting bring together dredging contractors and manufacturers from across the globe, senior U.S. and Mexican government and port officials, experts in the infrastructure, energy and dredging sector.

Dredge Yard, the dredging and mining manufacturer, is participating in the Mexican Chapter held in Mexico City, as a Gold Sponsor of the event.

The event will be a great opportunity for Dredge Yard to exchange ideas and experiences, share projects related information and find solutions for the Mexican dredging and port infrastructure development programs.

Meet our support team at WEDA Mexico Chapter

Dredge Yard’s support team will be present at the event to give all the information needed about the latest dis-mountable EURO DREDGER 450 that is under construction.

The company will also present the ECO200 dredger that has been designed after the advice of several dredging companies that have a need for a compact, economic and easy to transport dredger; as well as the auger dredger which is similar to Eco200 dredger but equipped with an auger head for sediment and sludge dredging.

Portfolio Items