Cooling process of blast furnace bosh

Abstract

The invention belongs to the technical field of metallurgical industry and discloses a cooling process of a blast furnace bosh, in particular a cooling process for combining a cooling plate and a cooling wall cooled by a blast furnace bosh. The cooling process of the blast furnace bosh mainly comprises the cooling plate and the cooling wall and is characterized in that the cooling plate is fixed at the lower part of the bosh; the cooling wall is mounted at the upper part of the cooling plate; a cooling plate brickwork is laid in a cooling plate area; ramming mass is filled between the bosh and the cooling plate brickwork; and a cooling wall inset brick is mounted on the hot surface of the cooling wall. One to ten layers of copper cooling plates are arranged at the part of the bosh shaped like the Chinese character Pin; the cooling wall is arranged on each copper cooling plate; and refractory materials with good heat conductivity and high thermal shock resistance are laid in the cooling plate area. The invention has good cooling effect, hard damage and easy maintenance, and is an ideal and practical cooling method of the current blast furnace bosh.

Description

technical field [0001] The invention belongs to the technical field of metallurgical industry, and discloses a cooling process for a blast furnace bosh position, and a cooling process for combining a cooling plate and a cooling wall for cooling a blast furnace bosh. Background technique [0002] In order to adapt to the longevity of the blast furnace, the cooling equipment used in the blast furnace is constantly updated, and the cooling process is also continuously improved. Currently, there are mainly two cooling methods for blast furnaces in the world. One is a cooling plate that is inserted into the blast furnace to perform spot cooling on the furnace wall; the other is a cooling wall that covers the inside of the blast furnace shell and performs surface cooling on the furnace wall. The technical principles and measures of these two technical systems are different, but both are feasible measures to improve the cooling effect and prolong the life of the blast furnace. Th...

AI Technical Summary

Problems solved by technology

The current full stave technology, the supporting condition of the bosh and above the furnace wall is not good, after ablation of a certain part, the upper refractory material is easy to fall off, which reduces the life of the blast furnace, and at the same time, it is not easy to replace the stave after it is damaged

In the full cooling plate process, on the one hand, the opening of the furnace shell is too large, which reduces the strength of the furnace shell; on the other hand, the point cooling of the full cooling plate cannot fully meet the high-intensity smelting requirements of modern blast furnaces.

Images