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The general layout and design of the seaweed farms used by some of the leading seaweed cultivation companies are all based on horizontal cultivation ropes attached to a mooring grid system. Cultivation ropes are typically polypropylene or similar material ropes. The mooring grid system is left in place after ending the harvesting season and may be re-used for several years. The moorings and the mooring grid systems are based on similar layout and components as used for aquaculture fish farms.
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Mussel /Shellfish / Seaweed Cultivation Mooring Grid
The general layout and design of the seaweed farms used by some of the leading seaweed cultivation companies are all based on horizontal cultivation ropes attached to a mooring grid system. Cultivation ropes are typically polypropylene or similar material ropes.
The mooring grid system is left in place after ending the harvesting season and may be re-used for several years. The moorings and the mooring grid systems are based on similar layout and components as used for aquaculture fish farms.
Our company has more than 20 years' industry experience working on marine and aquaculture mooring systems. You can get Turnkey Solutions from us with competitive cost. Embedment anchor, open link chains, fiber ropes with thimble and master link spliced, shackles, mooring joint plate are completed supplied for your project. You don't need to worry about the assembly problem on site, we do trial assembly in our workshop.
The mooring grid mainly includes sandy plough anchor, anchor chains, mooring ropes and floating mooring buoys.
1. Anchors:
Stingray anchor and plough anchor are the most popular type of anchoring device available. Stingray anchor is a kind of dragging anchor, designed to penetrate the seabed, either in whole or in part, particularly suited to resist large horizontal loads, but not for large vertical loads. Plough anchor is particularly suitable for bottoms of sand or mud, which is also named sandy anchor or muddy anchor.
2. Ground Anchor Chain:
The ground chain, connecting the anchor and the mooring rope is primarily used to provide weight to the mooring line, in order to keep the angle between seafloor and the mooring line within the desired range, between 9° and 12°.
3. Mooring Buoy:
For the fish farm mooring buoys, the outer material is often rotational molded polyethylene, and the filling is usually polyurethane foam or polystyrene foam, a steel bar(about 30–40 mm thickness) runs through the main buoy body to connect the two opposite attachment rings and add strength. The buoyancy in kilograms of a buoy is equivalent to the volume of the buoy minus its weight in kilograms.
4. Connection Shackles:
Shackles are used to connect mooring ropes, chains and anchors. The SWL is usually used to identify the size of shackles. Shackles can be D Type and Omega Type. Omega shaped shackles are the most common used, because they can accommodate a greater number of connections.
5. Connection Plate:
Mooring plates are the main connecting points of the whole grid structure where all components come together and are locked with shackles: the grid system, the mooring lines, the buoy chains and the cage bridles. Plates are usually round shaped, with sufficient holes for the shackle pins to be inserted.
6. Mooring Rope and Thimbles:
Ropes are the main components of the mooring system, and are used for both the mooring lines and grid system lines. Thimbles are generally made of hot-dip galvanized steel, and are used to reinforce the rope loop (eye splice) where it is connected to metal equipment (shackles, rings, etc.), and thus where it is subjected to heavy abrasion. Thimbles can markedly reduce wear on the rope. Thimbles used for moorings are usually tube type and open type.
