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4.Ethylene Propylene Diene Rubber Sheet(EPDM)
5.Silicone Rubber Sheet
6.Anti-slip rubber Sheet
7.Rubber Mat
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Domestic iron ore refractory structure is configured mainly grain becomes fine, flaky crystals change, account, earthy and cellular, and other types of parcels.
The crystal-morphing structure is an unequal-grained equiaxed or unequal-axis granitic crystal structure composed of iron minerals and quartz ; the scaly crystal structure is mainly composed of chlorite in a sheet or scale orientation. The crystal structure of iron minerals makes iron minerals often exist in chlorite in very fine-grained inclusions; the metasomatic structure is represented by the pseudo-hematite metamorphism in magnetite and the interaction between iron minerals and quartz. Representation, formation of residual structure, harbor-like dissolution structure, ring structure and frame structure; honeycomb and soil structure are common in weathered carbonate ore, inclusion structure refers to fine-grained iron mineral by quartz or other minerals Wrapped. These structures constructed of hard mineral stone makes between useful minerals and gangue minerals interlocking, wrapping each other, and so the trend is more dense disseminated to step up significantly, making the refractory ore more.
Second, mineral inlay particle size
The thickness of the mineral inlay particle size has a great influence on the mineral selectivity, especially the -10 μm particle size is extremely poorly selectable. In some difficult ore mines in China, the content of -10μm is very high, which has a great influence on the selectivity. For example, the Yuanjiacun iron ore amphibole type ore in the Taigutun mining area in Shanxi is up to 40% in size, which is very unfavorable for the selection.
Third, a variety of iron minerals associated
Due to the large differences in the selectivity of different types of iron minerals, the ore associated with various iron-like minerals is relatively difficult to select. In some iron ore mines in China, there are many mineral types in iron ore. Iron ore, hematite, limonite, and siderite are often symbiotic, making minerals difficult to choose.
Fourth, a variety of minerals associated
The association of different minerals of different varieties makes it easy to make the difference in selectivity between minerals smaller and difficult to choose. Baiyunebo header of iron ore to metallic symbiosis large multi-iron complex, in addition to iron, there are rare, niobium and other metal, it is difficult to bring a certain sorting relatively refractory; "panzhihua formula" magma shaped sub iron, because iron ore to titanium magnetite symbiosis with the iron ore having the same header Baiyunebo refractory characteristics.
5. Hazardous impurities
Harmful impurities such as phosphorus and sulfur are important factors affecting the quality of iron and steel. In some mines in China, the content of phosphorus and sulfur is very high, and sorting is difficult, making iron ore relatively difficult to select. In the Yichang area of ​​western Hubei, China has a large amount of iron ore with high phosphorus content. It is precisely because phosphorus and iron minerals are difficult to separate and have not been applied to date.
1. Mineral structure