Stowage factor (SF) indicates how many cubic metres (or cubic feet) of space one metric tonne of a particular type of cargo occupies in a hold of a cargo ship. It is calculated as the ratio of the stowage space required under normal conditions, including the stowage losses caused by the means of transportation and packaging, to the weight of the cargo.
Iron concentrates obtained by the dry method are susceptible to spontaneous combustion because of the air already trapped within the concentrate during the crushing process. Due to dampness within the cargo, the sulphur can react with the oxygen to produce heat, resulting in spontaneous combustion.
Iron ore concentrates can be transported by all means of transport, provided that no contamination, mixture with any other materials or cargo spillage is ensured. 3 Nontoxic, nonflammable and nonexplosive Iron ore concentrates are nontoxic, nonflammable and nonexplosive.
Iron ore concentrates are characterised by low sulphur and phosphorus content. Iron ore concentrate recovery is based on magnetic beneficiating methods. The ultra pure iron concentrate is widely used in steelmaking, metallurgy, chemistry, powder metallurgy, magnetic materials, food conservation, environmental protection, medical treatment, etc.
Iron ore concentrate is produced from the magnetite iron ore in the beneficiation process and is used for the production of pellets for blast furnaces and sinter. The concentrates are nontoxic, nonflammable and nonexplosive. The concentrate is shipped as a bulk commodity by rail using the opentop rolling stock and by sea.