装载可液化铁精矿船舶的设计要求和实践应用  

Design Requirements and Practical Applications of Ship Carrying Iron Ore Fines that May Liquefy

作　　者：林殿翱[1] 唐国元 窦更明 LIN Dianao;TANG Guoyuan;DOU Gengming(Qingdao Branch,China Classification Society,Qingdao 266034,Shandong,China;CSSC Qingdao Beihai Shipbuilding Co.,Ltd.,Qingdao 266520,Shandong,China)

机构地区：[1]中国船级社青岛分社,山东青岛266034 [2]中国船舶集团青岛北海造船有限公司,山东青岛266520

出　　处：《船舶工程》2022年第11期36-42,48,共8页Ship Engineering

基　　金：智能船舶综合测试与验证研究([2018]473)。

摘　　要：可液化的货物系指含有部分细颗粒和湿度的散装货物,在船舶运输过程中,如果这些货物的水分含量超过其适运水分限制(TML)就会液态化,货物的液化会给船舶的营运安全带来重大安全隐患。货物液化后产生的自由液面和货物移动会导致船舶稳性减少或丧失或船体结构破坏,严重时造成船舶的倾覆灭失。文章分析了散装固体散货液化的形成机理,对特别建造的装载可液化散装铁精矿船舶的设计技术要求和船旗国的原则性批准认可程序等进行了阐述,研究分析了在铁精矿液化的情况下,船舶的结构强度计算以及附加场景的稳性评估要求和实际设计应用。Cargoes which may liquefy means cargoes which contain a certain proportion of fine particles and a certain amount of moisture, they may liquefy if ships with a moisture content in excess of their transportable moisture limit(TML). There are some serious risks caused by cargo liquefaction for the ships. The stability will be reduced or lost and the ship structure will be destroyed due to the free surface effect and cargo shift, possibly resulting in capsizing of the vessel. The formation mechanism of liquefaction of solid bulk cargo in bulk is analyzed.The design and technical requirements of specially built ships carrying liquefied bulk iron ore fines and the approval procedure in principle of flag state are described. In the case of liquefaction of iron ore fines, the structural strength calculation of ships and the requirements of stability assessment in additional scenarios are studied.

关 键 词：铁精矿 适运水分限制(TML) 液化 结构强度 船舶稳性 

分 类 号：U674.13[交通运输工程—船舶及航道工程]