• 2018 July 12 15:24

    Damen begins work on Marine Aggregate Dredger dredging system

    Damen has begun work on the construction of the innovative dredging system for the first Marine Aggregate Dredger (MAD), the shipbuilding group said in a press release.

    This vessel, which is being built at Damen Shipyards Galati in Romania, is designed to extract sand and gravel from the sea bed at depths of up to -55 metres, including in the challenging conditions of the North Sea. Damen is building the first MAD for Cemex UK Marine Ltd.

    The life expectancy of such a vessel is up to 30 years, so it was important to CEMEX that Damen develop them a vessel that was future-proof. The result is a vessel with an advanced focus on safety, performance and sustainability that will ensure its relevance in the years to come. The innovation of the MAD extends to the dredging system that Damen Dredging Equipment has recently started work on in Nijkerk, the Netherlands.

    CEMEX asked Damen to develop a system with no inboard dredge pipework, something which has never been done on a vessel of this size before. The thinking behind this was to avoid the possibility of the abrasive dredged material creating wear holes in the inboard dredge pipework on board making it a safer and easier maintenance-friendly system.

    “This initial design from Damen Dredging Equipment, considerably reduces the risk of flooding. It has implications way beyond the obvious improvements in safety, not only for the crew on board but also for the maintenance staff, as there will be a reduced requirement for expensive wear parts as well as fast, practical replacement,” says Mark Williams, CEMEX UK Fleet Engineering Manager.

    Reduced maintenance is a common theme to be found throughout the dredging system design, explains Frank de Hoogh, DDE Design and Proposal Engineer.

    “The modular nature of the dredging system takes care of this. Where maintenance was previously a significant undertaking, it can now be conducted with just the on-board service crane, significantly lowering maintenance requirements and increasing uptime.”

    An example of this modularity at work is the screening installation. This is fixed, as opposed to the typical rotating screen towers more commonly used. In addition to being more maintenance friendly, the screening area features an increased capacity courtesy of a larger surface area.

    Another element is the dry unloader machine that Damen has developed along with CEMEX and manufacturer PLM. As a concept, Damen has selected the proven principle of a grab unloader, however a lot of work has gone into optimising the design. For example all electronics on the machine are rated IP68 for long term reliability. Another example is the design of the grab which is optimized to maximize efficiency of each discharge cycle.

    “Such a system already exists in principle, but this model represents the next step – the next generation – in dry unloading technology.”

    Ultimately, Frank says, the MAD benefits from Damen’s role of vessel integrator. “We are responsible not only for the design and build of the vessel, but also for the design and delivery of all on board equipment and its integration with the vessel. This ensures the predictable, reliable performance of the end product.”




2018 November 21

09:35 Bunker prices continue decreasing at the Port of Saint-Petersburg, Russia (graph)
09:14 Baltic Dry Index is down to 1,003 points

2018 November 20

18:21 Igor Levitin suggests separating positions of Deputy Transport Minister and head of Rosmorrechflot
18:06 MAN Energy Solutions wins order to supply the engine for a new dredger in southern China
17:53 Workshop aimed at building oil pollution preparedness and response capacity held in the Republic of Guinea
17:36 “K” Line announces delivery of new LPG carrier for Gyxis Corporation
17:18 Atomflot: first delivery of fish by NSR expected in summer-autumn season of 2019
17:04 Diana Shipping announces time charter contract for m/v Sideris GS with Berge Bulk
16:47 Rashid Sharipov as Chairman of the Board of Directors NCSP BoD
16:25 NIBULON Shipbuilding and Repair Yard launched second POSS-115 Project tug
16:04 OOCL announces improvements to Asia – Middle East 1 and Asia – Middle East 3
15:50 Storage area line launched at Vostochny Port’s Phase 3
15:34 New overpass at Maasvlakte 2 opens
15:03 Port of Oakland works to reduce impact of trucks
14:33 The port of Marseille Fos is engaged in reducing shipemissions by developing LNG as a marine fuel
14:03 Teesport Intermodal Rail Terminal celebrates fourth anniversary
13:43 12th Transport of Russia Forum and Exhibition opens in Moscow
13:10 Damen signs with Rimorchiatori Spezzini for two new Damen ASD Tugs 2411
13:02 Bunker prices are going down in the Far East ports of Russia (graph)
12:38 CCCC Dredging supports the 6th Forum of Dredging Companies as its Sponsor
11:54 Concession agreement signed for construction of coal terminal “Lavna”
11:30 OOCL introduces the new West Africa Service 2
10:45 Major ASW ship Severomorsk of RF Navy's Northern Fleet escorts Indian civilian vessel in the Gulf of Aden
10:23 Russian Railways’ BoD makes decision on discounts for cargo transportation in 2019
10:00 Brent Crude futures price down 0.39% to $66.53, Light Sweet Crude – down 0.24% to $57.06
09:19 Baltic Dry Index is down to 1,023 points
08:51 Valenciaport container vilume increased by 4.78% in the last twelve months
07:51 Klaveness Combination Carriers declares option for sixth combination carrier newbuild

2018 November 19

18:37 IMO holds workshop boosting maritime security in Gulf of Guinea
18:05 MOL conducts tabletop drill for LNG carrier
17:49 Hapag-Lloyd to start new Asia – Gulf Service (AGS)
17:43 Busan Port Authority signs Letter of Intent for the Maasvlakte Distribution Park West
17:01 Ocean Network Express expands the partnership of Asia - South America
16:32 BIMCO standard ship repair contracts overhauled
16:05 Port of Hamburg railborne container transport up 4.3 percent in the first nine months of 2018
15:44 FESCO and DB Cargo plan to launch joint transit shipments from China to Europe via Kaliningrad
15:10 Costamare announces the acquisition of the York Capital majority interest in five 14,000 TEU containerships
14:56 Half a billion tones of Kazakhstan oil lifted from CPC Marine Terminal
14:47 Saipem 7000 semi-submersible at Damen Verolme Rotterdam for DPS upgrade
14:33 OpenRisk launches guideline for risk management at sea to improve response to accidental spills
13:59 NCSP Group's consolidated cargo turnover for January-September totaled 105,253 thousand tons
13:11 Average wholesale prices for М-100 HFO down to RUB 19,660 in RF spot market
12:47 ABP invests over £1 million on a rooftop solar project at the Port of Goole
12:18 Damen supports 2nd Dredging and Hydraulic Engineering Structures Congress as its General Sponsor
12:00 The Fjords plans to add another all electric passenger vessel to its fleet
11:36 TOTE Services' Philip Greene Jr. retires next year
11:02 Damen Shipyards Group celebrates Multraship Carrousel RAVE Tug winning KNVTS Ship of the Year Award
10:44 Port of Oakland cargo volume up 3.9 percent in August - October 2018
10:43 Throughput of Port Vysotsky up 9.4% to 6.34 million tonnes in 10M’18
10:19 Brent Crude futures price up 0.69% to $67.22, Light Sweet Crude – up 1.02% to $57.26
09:57 Media Group PortNews issues special edition of its magazine for Transport Week 2018
09:35 Rosmorrechflot reduced operation period of locks in Volga-Don Basin
09:18 Baltic Dry Index is up to 1,031 points

2018 November 18

16:21 Wellington ferry skipper fined $1,688 after grounding
15:04 SFL continues its fleet renewal programme, to sell its 2002-built VLCC
14:37 Austal delivers Expeditionary Fast Transport ship USNS Burlington to U.S. Navy
14:26 Lockheed Martin gets $282M contract mod for four MMSCs project
14:13 Ulstein Verft starts construction of largest hybrid ship for Color Line
13:41 Klaveness extends contract of affreightment with South32 Marketing Pte Ltd
12:06 PaxOcean wins three newbuilding contracts from Royal IHC