rss icon Subscribe
desktop mobile

Damen Delivers MAD3500

Pic: Damen Shipyards

Shailaja A. Lakshmi

Screening installation Marine Aggregate Dredger (MAD) 3500 has been fully assembled at the Damen Dredging yard.

Last week the completion of the assembly of the screening installation of the CEMEX Go Innovation was celebrated at the Damen Dredging yard. The screening installation is designed for the aggregate dredger type MAD3500 currently under construction. This hopper dredger features several innovative elements, including the fully re-designed screening installation.

All major offshore aggregate dredgers are fitted with a screening installation. The screening process is vital to controlling the required grain size of a hopper load. Traditionally, a screening installation consists of two separate rotatable towers directing the desired cargo into the hopper hold, while discharging unwanted material overboard.

For the MAD3500 currently under construction for CEMEX UK Marine, Damen has completely redesigned the screening system.

The new design has several features which are aimed at reducing maintenance, and an undisturbed loading process. The wear and tear ratio of all components in contact with aggregates is a well-known and costly fact.

The new screening installation has been designed to last with flow direction optimization, specially added wall thickness where required, rubber lined components such as the loading chutes etc.

Moreover, components such as the screening decks can be dismounted within a quarter of an hour; this action can be done alongside the quay allowing a quick exchange of the screening decks which can be later serviced in the workshop. Most components such as both screening decks, delivery chutes etc are exchangeable.

Other design features include the substantially increased screening surface. Compared to previously available loading towers the surface has doubled resulting in improved cargo quality and reduced loading time. Furthermore, rejected spoil is no longer discharged over the side, but leaves the system through the vessels bottom reducing vessel plume and the design snugly fits the restricted deck area available.

The installation will be dismounted to be shipped from Rotterdam to the Damen yard in Galati, where the MAD3500 is being constructed. Thanks to the proven plug 'n play design the final installation on board will be done swiftly.

May 14, 2019

 

Shipbuilding

Damen to Prepare Stad Amsterdam for ‘Green Ambassador’ Role

Photo: Damen

On July 18, 2019, a press conference was held at the Willemsoord historic harbor in Den Helder.

Last Yamal LNG Arctic Ships on Sea Trials

Arctic Firsts: Arc 7 LNG carriers, including the Risunok and the ice-breaking Christophe de Margerie (pictured here). (Photo Courtesy: Yamal LNG and Sovcomflot)

The last of 15 Arc7-classed tankers ordered for the liquefied natural gas (LNG) production plant

Offshore wind: One-stop power conversion

Optimal outputs: a wind-turbine permanent magnet generator at The Switch in Deyang. Image Courtesy Yaskawa’s The Switch

With the United States and China about to start their respective offshore wind build-ups

Dredging

Van Oord Enacts Hopper Dredger Option

Photo: Van Oord

Van Oord has decided to use the option of ordering a third trailing suction hopper dredger at

Wärtsilä wins Hopper Dredger Propulsion Deal

Photo courtesy of Damen

The technology group Wärtsilä has again been selected by the Netherlands-based shipbuilding

Singapore Starts Tuas Terminal Phase 2

Installation of the first casisson for Tuas Port Phase 2. Photo: Maritime and Port Authority of Singapore

The Maritime and Port Authority of Singapore (MPA) has announced that reclamation work for Tuas

Maritime Apps