Method for producing furnace charge from manganese oxide ore and application thereof

The invention relates to a method for producing furnace charge from manganese oxide ore. The method comprises the following steps of crushing the manganese oxide ore, grinding into powder, slurrying the ore after grinding the ore into powder, then pumping sulfur dioxide gas and carrying out agitation leaching, or adding concentrated sulfuric acid after adding ammonium sulfite solution and carryingout the agitation leaching, and then adjusting the pH to 6.0 - 6.4, and carrying out solid-liquid separation after impurity removal and filter-press to obtain manganese sulfate solution and a filter-press block A; B, standing the manganese sulfate solution to separate supernatant and precipitate, filter pressing the precipitate, and adding the filter-press block A into the slurrying process in the step A; adding alkali into the supernatant at the temperature of 38 - 42 DEG C and adjusting the pH to 8.5 - 9, filter pressing the obtained precipitate and carrying out the solid-liquid separationto obtain a manganese hydr