Disposable environment-friendly heat preservation cover of molten iron conveying tank and use method

Abstract

The invention discloses a disposable environment-friendly heat preservation cover of a molten iron conveying tank. The heat preservation cover comprises a cover body, the cover body is composed of a bottom plate, supporting rings, a first supporting frame, a second supporting frame, a cover plate on the supporting rings and a carbon heat preservation layer; hooks are connected to two symmetric sides of the supporting rings, a lifting hook frame is connected to the hooks, and structural parts forming the heat preservation cover are all made of waste steel. A use method comprises the steps thatthe heat preservation cover is lifted to an empty molten iron conveying tank, the cover body is placed in the molten iron conveying tank, the molten iron conveying tank is conveyed to a tank preparingroom, the tank body condition is subject to checking and maintaining, the heat preservation cover does not need to be taken down for molten iron loading, tank pouring is carried out, and the above steps are repeated. The heat preservation cover has the beneficial effects that the structure is simple, the material is cheap and easy to obtain, use is convenient, the heat preservation property is excellent, a metal material of a cover body structure is subject to online molten recycling, heat preservation material ash online molten iron slag modification is achieved, and full-process heat preservation of the molten iron conveying container is achieved.

Description

technical field [0001] The invention relates to a thermal insulation device for a container for holding molten iron and a method for using it, and specifically belongs to an environment-friendly thermal insulation cover for a molten iron transport tank (a molten iron tank and a torpedo tank) and a usage method. 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 successful, and also the key to determine the amount of scrap added to the converter and the...

AI Technical Summary

Problems solved by technology

[0005] To sum up, the insulation of hot metal delivery tanks (hot metal tanks or torpedo tanks) with a cover has a significant contribution to reducing the temperature drop of hot metal delivery and improving the technical and economic indicators of steelmaking. For this reason, a large number of theoretical and practical studies have been carried out at home and abroad. , the capping method fixed on the tank car and the advanced remote control mode have been reliably applied in actual production, but the one-time investment is huge, the investment recovery period is long, and it is difficult to transform the old enterprise; Although the one-time investment is small, and a good thermal insulation effect has been achieved in industrial experiments, it is difficult to implement stably due to site and space constraints, which is the main reason why there is no large-scale promotion

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