CHARGE FOR PRODUCING IRON-ORE PELLETS (VARIANTS)

The invention relates to the field of producing iron-ore pellets for blast-furnace smelting. In a first variant, a charge contains iron-ore concentrate and manganiferous limestone as a binding agent and flux, the ratio of charge components in wt% being as follows:1.0-5.0 manganiferous limestone; and the balance iron-ore concentrate. In a second variant, the charge contains iron-ore concentrate, bauxite as a modifying agent, and manganiferous limestone as a binding agent and flux, the ratio of charge components in wt% being as follows:1.0-3.5 manganiferous limestone; 1.2-1.5 modifying additive;and the balance iron-ore concentrate. The invention raises the strength of green and sintered pellets while preserving a high iron content, reduces the softening-melting interval of the pellets in ablast furnace, and simplifies the production of iron-ore pellets. 本发明涉及生产用于高炉冶炼的铁矿石球团的领域。在第一实施例中，炉料包含铁精矿和用作粘合剂和助熔剂的含锰石灰石，炉料组分的比例以重量％计如下所示：1.0-5.0锰石灰石；以及余量的铁精矿。在第二实施例中，炉料包含铁精矿、作为改性剂的铝土矿、和作为粘合剂和助熔剂的含锰石灰石，炉料组分的比例以重量％计如下所示：1.0-3.5