Self-consumable simple thermal insulation cover of molten iron transport tank and its application method

Abstract

The invention discloses a self-consumption type simple heat preserving cover of a molten iron conveying tank and a use method of the self-consumption type simple heat preserving cover. The self-consumption type simple heat preserving cover is arranged on a container opening of a molten iron container. The heat preserving cover comprises a concave heat preserving assembly. The concave heat preserving assembly is a rotary body with an opening formed in the top, wherein the external diameter of the rotary body is gradually reduced from top to bottom, the concave heat preserving assembly is embedded into the container opening, and comprises an internally-hollow concave metal sheet box, a bottom leak hole is formed in the bottom face of the concave metal sheet box, inverted L-shaped tank opening supporting frames are symmetrically arranged on the end face of the edge of a box opening of the concave metal sheet box, the bottoms of the vertical sections of the tank opening supporting frames are connected with the upper end face of the concave metal sheet box, and the concave metal sheet box is filled with a heat preserving layer. The self-consumption type simple heat preserving cover hasthe advantages that the self-consumption type simple heat preserving cover is simple in structure, convenient to use and excellent in heat preserving performance, materials are cheap and easy to obtain, the cover body structure metal materials are online molten and recovered, molten iron slag is online modified with heat preserving material ash, and the acclimatation capacity is high.

Description

technical field

[0001] The invention relates to the technical field of heat preservation and transportation of molten iron, in particular to a self-consumable simple heat preservation cover of a molten iron conveying tank and a method for using the same, which is suitable for the whole process of heat preservation at the mouth of a molten iron tank or a torpedo tank. Background technique

[0002] Molten iron is the main raw material for steelmaking. The chemical heat and physical heat of molten iron are the main heat sources for converter steelmaking. The temperature of molten iron is a sign of how much physical heat is brought into the converter. According to the converter smelting process, the heat of converter smelting basically comes from the physical heat and chemical heat of molten iron. Under the condition of constant chemical heat, the physical heat of molten iron is the key factor to determine whether the converter smelting can be smooth, and also determines the amou...

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