Molten iron heat preservation method of smelting equipment

The invention discloses a molten iron heat preservation method for smelting equipment. The molten iron heat preservation method comprises the steps that S1, a molten iron tank to be filled with molten iron is heated through heating equipment; s2, molten iron is poured into the heated molten iron tank, and a molten iron converter heat preservation agent is added; s3, the molten iron tank full of molten iron is conveyed to capping equipment through a molten iron tank transport vehicle so that an opening of the molten iron tank can be covered with a heat preservation cover; s4, the capped molten iron tank is conveyed to a steelmaking station through a molten iron tank transport vehicle; s5, a heat preservation cover on the molten iron tank is uncovered, and molten iron in the molten iron tank is poured out for smelting operation; s6, the heat preservation cover is transported back to the capping equipment through the heat preservation cover transport vehicle; s7, the empty molten iron tank is transported back to