Cooling water pipe connected net for cooling walls of soft water blast furnace

Abstract

The invention discloses a cooling water pipe connected net for cooling walls of a soft water blast furnace. A tuyere zone cooling wall, a furnace bosh cooling wall, a furnace waist cooling wall and a furnace body cooling wall are installed on the wall of the soft water blast furnace, and at least two external cooling water pipes are connected to each cooling wall; a first external cooling water pipe, a second external cooling water pipe, a third external cooling water pipe and a fourth external cooling water pipe are connected to the outside of a furnace shell between two adjacent cooling wall layers, and the first external cooling water pipe, the second external cooling water pipe, the third external cooling water pipe and the fourth external cooling water pipe all incline or deviate towards the same direction; and internal cooling water pipes with the trend from the lower part of the soft water blast furnace to the upper part of the furnace body ascend to the uppermost layer of the cooling wall of the soft water blast furnace along the furnace shell of the soft water blast furnace in a winding stair type structure mode. The cooling water pipe connected net for the cooling walls can restrain damage of cooling equipment caused by local airflow development, is beneficial to keeping the stability of the shape of the blast furnace and reducing the running expense and the energy consumption of the cooling system of the blast furnace, and can be generalized to cooling devices of various large and medium metallurgy blast furnaces.

Description

technical field [0001] The invention relates to a cooling water pipe connection network used between cooling walls of a soft water blast furnace. Background technique [0002] Stave is the most commonly used cooling element for metallurgical blast furnaces, and it is of great significance to the high output, high quality, low consumption and long life of blast furnaces. How to achieve stave longevity under high smelting intensity is a major issue in the ironmaking industry. In recent years, with the advancement of blast furnace technology, many metallurgical blast furnaces have adopted a soft water closed circulation cooling system. The staves of these soft water blast furnaces are usually divided into ten layers, each layer has dozens of staves, and each stave usually has four Cooling water pipes (7 for individual parts, such as tuyere and iron mouth area). At present, the cooling water pipes of soft water blast furnaces at home and abroad all enter water from a certain p...

AI Technical Summary

Problems solved by technology

The connection structure of cooling water pipes of this cooling wall is basically in the same vertical direction from the bottom to the top, so the whole water pipe from the tuyere to the top in this area will be affected by high heat load and easily damaged, which is not conducive to the blast furnace model. the stability of

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