论文部分内容阅读
菱铁矿亦名碳酸铁。纯菱铁矿含铁48.2%,含二氧化炭37.9%。自然界中分布最广的是沉积于砂砾中的菱铁矿,含铁量30～40%,所形成的矿床不大,有吋还含有大量含炭物质而呈黑色馓蟊┞队诘乇聿糠质芸掌醒鹾退值淖饔靡籽趸珊痔蟆?国内一些小炼铁厂,因地制宜,常使用菱铁矿作为高炉原料。为了去除二氧化炭,提高矿石含铁量,改善共还原性能,菱铁矿入炉前均须氧化焙烧处理。当生产规模较大
Siderite also known as iron carbonate. Pure siderite iron content of 48.2%, containing 37.9% of carbon dioxide. The most widely distributed in nature is the siderite deposited in grit, the iron content of 30 ~ 40%, the formation of the deposit is not large, there are also containing a large number of carbon-containing material was black 馓 蟊 ┞ team 诘 Torr Yu chameleon 掌 鹾 鹾 awakened 鹾 retreat 淖 靡 value 淖 饔 extravagant seeds wholesale Shan hemorrhoids frog? Some domestic small ironworks, according to local conditions, often used siderite as a blast furnace raw materials. In order to remove carbon dioxide, improve ore iron content, improve the total reduction performance, siderite into the furnace before oxidation roasting treatment. When the production scale is larger