• 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.”




2019 February 15

18:05 Noble Corporation announces purchase of a second newbuild jackup rig from PaxOcean
16:57 Port of Goole powered by £1 million solar installation
16:26 ABP continues support of Felixstowe Volunteer Coast Patrol Rescue Service
15:30 Sea Cup 2019 preliminaries kick off in Kamchatka
15:04 CNIIMF authorized to confirm conformity of dangerous cargo containers
13:59 Nevsky Shipyard starts cutting metal for cargo-passenger ship of PV22 project
13:32 Murmansk Sea Fishing Port handled 5,500 tonnes fish in Jan’2019, down 48% Y-o-Y
13:08 Fincantieri and Princess Cruises celebrate three construction milestones of three “Royal” class ships at the Monfalcone shipyard
12:45 Dredging under Sea Port Sukhodol project to exceed 7 mln cbm – details to be covered at the Congress
12:08 Port of Oakland import volume increased 9 percent January 2019
11:46 8 vessels escorted by icebreakers in eastern part of Gulf of Finland during 24 hours on February 14-15
11:27 Okskaya Sudoverf lays down seventh dry cargo carrier of Project RSD32M
11:08 DNV GL and Metalships & Docks ink class agreement for luxury sailing vessel
10:53 Throughput of Ukraine’s seaports in Jan’19 grew by 3.4% Y-o-Y to 11.19 million tonnes
10:29 Brent Crude futures price is up 0.63% to $64.98, Light Sweet Crude – up 0.57% to $54.72
10:08 EFIP welcomes the adoption of the European Parliament resolution on NAIADES II
09:41 Bunker prices are going up at the port of Saint-Petersburg, Russia (graph)
09:16 Baltic Dry Index up down to 628 points
09:07 ICTSI inaugurates the expansion of its Batumi International Container Terminal
08:07 MAN Energy Solutions wins contract to supply the engines for a new harbour tug in Spain
07:41 Inmarsat announces new initiatives to support maritime, ports and logistics start-ups with Rainmaking and Bluetech

2019 February 14

18:03 Austal's LCS 20 completes acceptance trials
17:44 Royal Navy to discuss the future of unmanned and autonomous naval warfare at SMi's 3rd annual Unmanned Maritime Systems Technology 2019
17:22 Freight turnover of Neva-Metal (Saint-Petersburg) in January 2019 fell by 26% Y-o-Y to about 190,000 tonnes
17:03 MOL Techno-Trade takes part in marine environmental protection program
16:25 VTB acquires 100% of Novorossiysk Grain Terminal from NSCP Group
16:03 Port of Virginia container volume up 8.9% to 134,638 TEU in January 2019
16:03 Expert expects uncertainty on global fuel market next week
15:49 “K” Line’s LNGC makes maiden call from Ichthys LNG Project to Naoetsu LNG Terminal in Japan
15:40 BSTDB to finance construction of Lavna coal terminal under agreement with STLC
15:21 2nd Conference “Dangerous cargoes: new transportation requirements” to be held under the auspices of RF Chamber of Commerce and Industry
15:03 ONE renewes own loading record exceeding 19000TEUs
14:33 Maersk and PBF Logistics LP announce agreement for production and storage of 0.5% sulphur fuel on the U.S. East Coast
14:02 Port of Long Beach volumes decrease 0.1 percent to 657,286 TEU in Jan 2019
13:50 Multipurpose Transshipment Complex to be built in Primorsk
13:32 Port of Los Angeles volumes up 5.4 percent to 852,449 TEUs in January 2019
13:02 Port of Rotterdam throughput volume up to 469.0 million tonnes in 2018
12:46 Supply vessel OCEAN COOPER 2 sinks in Singapore waters
12:25 Baltic Sea Region cruise ports commit to reducing negative ecological impacts
11:27 Bunker prices are flat at the Far East ports of Russia (graph)
11:09 Port of Marseille-Fos to deliver the first phase of the subsea cable landing infrastructure by Q3 2019
10:31 9 vessels escorted by icebreakers in eastern part of Gulf of Finland during 24 hours on February 13-14
10:09 GTT receives an order from Samsung Heavy Industries for the tank design of a new LNG Carrier for Minerva Gas
09:44 Brent Crude futures price is up 0.66% to $64.03, Light Sweet Crude – up 0.58% to $54.21
09:25 Baltic Dry Index is up to 608 points
09:08 ABB to power Iceland’s first electric ferry ABB to power Iceland’s first electric ferry

2019 February 13

18:10 Shell and partners start deep-water production at Lula North in Brazil
17:46 OLT Offshore LNG Toscana Regasification Terminal works at almost full capacity
17:23 Excelerate’s Northeast Gateway Deepwater Terminal reached a peak send-out flow rate
16:58 Bunker sales at the port of Singapore in Jan’2019 fell by 8.9% Y-o-Y to 4.12 million tonnes
16:29 II HES and Dredging Forum to address deep-water routes to Sabetta and Novoportovsky terminal
15:57 Port of Singapore throughput in Jan’2019 fell by 2.4% Y-o-Y to 51.93 million tonnes
15:32 Throughput of Russian seaports in Jan'2019 grew by 5.6% Y-o-Y to 67.6 million tonnes of cargo (detalization)
15:05 Bank VTB acquired 50 percent minus one share in United Grain Company
15:04 NYK conducts crisis-response drill with ONE
14:56 DNV GL and Metalships & Docks ink class agreement for luxury sailing vessel
14:03 WMU and Japan cooperate on advancing BBNJ discussions
13:37 New Freeport of Riga Development Programme provides for expanded port operations
13:14 MOL Chemical Tankers and Den Hartogh Logistics form strategic alliance
12:51 7 vessels escorted by icebreakers in eastern part of Gulf of Finland during 24 hours on February 12-13