What should we pay attention to when loading and unloading dry bulk cargo in thailand logistics line?
We all know that dry bulk cargo is a dangerous cargo in logistics, so when transporting dry bulk cargo, special attention should be paid to what should be paid attention to when loading and unloading dry bulk cargo?
Thailand logistics line loading and unloading dry bulk cargo
1. Cargo displacement: The displacement of bulk cargo causes great harm to ships, especially when loading bulk grain. Bulk grains tend to sink by 2%. Affected by ship vibrations and vibrations, the gaps between particles will gradually shrink, causing the surface of the particles to sink. When a ship capsizes, the free movement of grain causes particles to pile up from side to side, causing the ship to capsize.
2. Falling from high altitude: During the loading and unloading process, bulk cargo often falls on the conveyor belt or grab bucket. When loading and unloading high-density cargo such as iron ore, quartz, steel scraps, etc., special attention should be paid to avoid being impacted and causing casualties. Deck duty personnel should strengthen their responsibilities and strictly prevent irrelevant personnel from entering the work area. Workers should wear helmets, shoes and reflective hard hats.
3. Cargo dust: Cargo dust is one of the common dangers on bulk carriers. Bulk cargo often contains dust, which can cause local irritation to the skin, cornea and mucous membranes, and produce a series of pathological changes. Therefore, deck watch personnel should try to avoid long-term exposure to high concentrations of dust and wear protective masks when on duty. Dust can also have a negative impact on deck machinery, so deck machinery should be covered as effectively as possible when loading and unloading cargo.
4. Damage to the hull structure: Due to its small stowage coefficient and small volume, it is easy to overload the local strength of the hull and increase the stress and torque of the ship, thereby causing damage to the hull structure and hull strength.
5. Corrosion: Bulk cargoes such as coal and sulfur are often stacked in open-air storage yards. When encountering bad weather such as rainy days, the moisture content increases significantly. During transportation, water slowly settles into the bilge, causing acid corrosion of the inner bilge plates.
6. Pollution: Cleaning of cargo holds is an important part of the ship. As a marine engineer, the editor has been involved in cleaning ship cabins on many occasions. It should be ensured that there are no residues and rusty residues in the engine room, the sewage wells are clean, and the sewage treatment system is normal to prevent claims for contamination of the cargo. For example, when loading cement, if there are other residues in the tank, it may cause the cement to lose its coagulation; when the cement encounters water, it will solidify and harden after a period of time, completely losing its use value. When filling the sugar, be aware that the sugar is afraid of hot flashes, and the moisture will cause it to become moldy, and it will easily melt into syrup when heated.
7. Fire: Many bulk cargoes present a fire hazard. Cargo oxidizes during navigation to generate heat. Common goods such as coal, sulfur, cotton and fishmeal are susceptible to heat. Coal also releases methane, a flammable gas that can form explosive mixtures when mixed with air. Dust from certain cargoes may be explosive. Sulfur powder is highly explosive. Friction between cotton yarns can cause spontaneous ignition and generate heat. Bulk carriers should strictly comply with fire prevention measures.
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