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General purpose and uses of sea-going bulk carriers

There were numerous risks in operating seagoing bulk ships. Important shipboard issues require cautious planning and prudence. This site provides an immediate guideline to the global shipping community as well as information on loading and discharge of various bulk cargo types. It is important to remain within the restrictions set by the classification organization. It's important to avoid stressing the ship's structural integrity and adhere to all safety rules to ensure safe sea passage. Our detailed pages address a variety of bulk carrier-related subjects that might be of interest to those who work onboard or at the terminal.

The general characteristics of bulk ships that travel by sea.
Bulk carriers are single-deck vessels equipped with top-side tanks and hopper side tanks in cargo areas and are designed principally to transport one-commodity bulk cargo. Any material that is not gas or liquid, but is a bulk solid cargo, which includes any substance made up of a mixture or granules, or any other material with an uniform composition. The material can be put directly into the cargo space of a ship and does not require any container. Dry cargo comprises sugar, bulk grains, and even ores. Bulk carriers are vessel which is used to transport large or liquid cargo. This could also encompass tankers. The term"bulk carrier" is typically used to refer to vessels specifically designed to carry bulk solid cargos. They include grains or similar agricultural products and minerals such as coal, ore and stone on one or more of the voyage legs. Check out this ore carrier info for more.

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What Is Bulk Carrier?

"A ship which is intended primarily to carry dry cargo in bulk, including such types as ore carriers and combination carriers"

Carrying weights range from 3,000 tonnes up to 300,000.
Average speed 12-15 knots
-Single deck ships, ie no tweendecks
Carriers of medium to small size bulk (carrying capacities of between 40 and 60,000 tonnes) typically come with equipment for handling cargo. However, larger vessels can use shore-based -facilities to load or unload.
The cargo holdings are usually huge and clear of obstructions. There are hatches with larger dimensions so that cargoes can be loaded/unloaded easily.
-Ballast holds are a common feature on bulk carriers. This is a possibility to use on ballast voyages in order to increase stability. For partially ballasting, one or two additional holds may allow but only at port.
They are single pull and stacking, or hydraulic steel hatch covers.
-Four types of ballast tanks:
Sloping topside wing tanks
Tanks with a sloping bottom
Double bottom tanks
Ballasts for peak and post peak water tanks

What is solid bulk cargo? Anything that is not liquid or gas, consisting of a mixture of granules, particles or any larger pieces of material generally of uniform composition and loaded directly into the cargo space without any intermediary type of confinement. The goods transported by bulk carriers, that range from "clean" food items to "dirty" minerals and encompassing those that may react with each other or with contaminants like water, means that care must be taken to ensure that the cargo areas are prepared properly for the specific cargo that is that is to be loaded. The cargo area needs to be cleaned in a way that allows for loading. Surveyors are often required to check the space to ensure that it is safe for loading. It is vital that the leftovers from previous cargo are removed to ensure that contamination does not occur. Damage to bulk cargoes is mostly due to water. The storage areas should be dry in order to accommodate cargo. However the hatch covers need to be watertight, or sealed if necessary to prevent water ingress. All fittings within the hold (ladders, pipe guards, bilge covers, etc.) In order to ensure that they're in good order and properly installed and properly fitted, all fittings within the hold (ladders, pipe guards and bilge covers.) should be inspected. Such pieces of equipment might cause significant damage to conveyor belts and consequent delays, for which the ship will be held liable, should they accidentally discharge the cargo. Have a look at this bulkers info for more.

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Bulk Carrier, Bulker A vessel intended to transport dry cargo. The conventional bulk carrier is built with only a single deck, one skin and double bottom. It also has hopper side tanks and topside tanks within cargo spaces. Bulk carriers are made to hold with the highest deadweight of any bulk cargo from heavy ore to light grain . The process of loading, transporting and finally the discharge of bulk cargo that is dry isn't as straightforward or straight-forward as people think.

Gearless Bulk Carrier
Many bulk cargoes can contain dangerous substances or change their properties during transport. The ship may be damaged by incorrect loading e.g. A ship that is not loaded to its maximum forward can be bent by loading it excessively. This could cause the ship to'stress'. If the weather is bad the stress can result in dangerous problems on the sea. Last cargoes could be adversely affected by residues from previous cargoes. Certain bulk cargoes could have water damage. cement power. It is challenging to confirm the amount of cement used and the weight of cargoes that are loaded and unloaded. These elements can have severe implications on the way bulk cargoes are transported safely. Discharging bulk cargo using? Bulk cargoes possess the tendency of forming a cone whenever they are loaded if conveyor belts or similar systems aren't monitored and monitored. This angle is called the "angle of repose" and is different based on the specific cargo. Iron ore cargoes, however have a steeply-angled cone. The cargoes that are flow free will form cones that are shallower. A cargo that is low in angle of repose has the possibility of shifting in transit. Bulldozers may need to be used for some items to distribute the load over the sides of the holding because the cargo is close to completion. Dry-bulk carriers generally use shoreside facilities for cargo loading or discharge Some bulk carriers provide self-unloading capabilities with conveyors beneath the cargo holds or cranes on deck.

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