Blast furnace cooling structure

Abstract

The invention discloses a blast furnace cooling structure, which comprises a plurality of cooling walls and cooling water pipelines, wherein the cooling walls are longitudinally arranged, and the cooling water pipelines are longitudinally penetrated in the cooling walls. The invention is characterized in that each row of cooling walls which are longitudinally arranged are divided into a pluralityof groups, and an upper switch valve and a lower switch valve are arranged on the cooling water pipelines at the upper end and the lower end of each group of cooling walls; the cooling water pipelinebetween the lower switch valve and the lower end of each group of cooling walls is also transversely provided with a lower by-pass pipe in a communication mode, a lower by-pass valve is arranged in the lower by-pass pipe, and a water pressure gauge is installed at the port of the other end of the lower by-pass pipe; and the cooling water pipeline between the upper switch valve and the upper end of each group of cooling walls is also transversely provided with an upper by-pass pipe in a communication mode, an upper by-pass valve is arranged in the upper by-pass pipe, and the port of the other end of the upper by-pass pipe is directly communicated with the atmosphere outside the blast furnace. The invention can reduce the influence of water leakage on blast furnace production, has the advantage of short leakage detecting time, and can accurately position the part of water leakage.

Description

technical field [0001] The invention relates to an ironmaking blast furnace, in particular to a blast furnace cooling structure. Background technique [0002] A blast furnace is an ironmaking shaft furnace with a circular cross section. Generally, steel plates are used as the furnace shell, and the shell is lined with refractory bricks. In order to meet the cooling requirements of the blast furnace during production, a cooling system is installed in the furnace wall of the blast furnace. The cooling system includes several rectangular cooling staves. The staves are made of cast iron. There are cooling water pipes in the staves. Arranged and each vertical row of staves is penetrated by a vertically arranged cooling water pipe. The cooling water enters from the lower end of the cooling water pipe and flows out from the upper end under the action of the water pump, thereby forming a cooling water cycle to cool the blast furnace. [0003] The blast furnace cooling system of th...

AI Technical Summary

Problems solved by technology

However, due to the harsh working environment of the blast furnace, the cooling pipes often break and leak, which causes the furnace to run smoothly and affects production.

At the same time, after a water leakage accident occurs, it is necessary to stop the wind to detect the leak, and then repair the leak after the leak is detected. However, the existing leak detection technology often needs to rely on experienced workers to make judgments, and the leak detection time is too long. Defects that are difficult to accurately locate the leak

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