Ladle cover suitable for ejection burner

Abstract

The invention provides a ladle cover suitable for an ejection burner. The ladle cover comprises a cover body, a reinforcing ring plate, refractory cottons, lifting lugs, an air through hole, an insulation layer, inverted F-shaped hanging pieces, air preheaters, a burner reserved port and a separation plate; the separation plate is arranged in a cavity of the cover body for dividing the cavity of the cover body into an upper cavity and a lower cavity; the burner reserved port penetrates through the center of a cover body upper-layer plate an the center of the separation plate; the reinforcing ring plate is arranged on the lower end surface of the cover body; the refractory cottons are arranged on the lower surface of the separation plate and the inner wall of the lower cavity, and are fixed through the inverted F-shaped hanging pieces; the upper ends of the inverted F-shaped hanging pieces are fixed on the lower surface of the separation plate; at least four lifting lugs are provided; all the lifting lugs are annularly and uniformly fixed on the outer wall of the cover body; the air through hole is formed in the cover body upper-layer plate; the insulation layer is fixed on the lower surface of the cover body upper-layer plate; and the air preheaters are annularly and uniformly fixed in the upper cavity with the center of the cover body upper-layer plate as the circle center. The ladle cover has such advantages as light weight, reasonable structure and low manufacturing cost.

Description

technical field [0001] The invention relates to the field of ladle roaster equipment, in particular to a ladle cover suitable for injection burners. Background technique [0002] The production process of the ladle is: converter (or electric furnace) receiving steel—refining—pouring steel—hot repair—waiting for steel connection. In this process, the temperature requirement for the ladle is very high. The ladle oven is a device for heating the ladle. Its working efficiency directly affects the temperature of the ladle, indirectly affects the entire steelmaking process and product quality, and at the same time affects the energy-saving and emission-reduction requirements of the steel plant. Therefore, it is necessary to find a way to improve the combustion efficiency of fuel, reduce the emission of polluting gases, and meet the production demand, so as to achieve the purpose of saving energy and reducing consumption. [0003] Most of the existing covers are single-layer heat-...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing covers are single-layer heat-insulating covers, which mainly have the following disadvantages: 1. The preheating of ladle baking is not fully utilized, and the heat loss is huge; 2. The weight of the cover is relatively large, which increases the burden on equipment; 3. Preheating cannot be reused, causing great damage to the refractory material and requiring frequent maintenance; 4. In other burner baking, a fan is required for air supply

Some covers use porous ceramic materials as regenerators. Porous ceramic regenerators can store a certain amount of heat, but this kind of material has low mechanical strength and cannot withstand large external forces and repeated impacts. clogging of porous regenerator

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