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Water pipe reinforcing rib type cooling wall

A technology of reinforcing ribs and staves, applied in the field of metallurgical casting, can solve problems such as water pipe cracks, stave water leakage, and stave cracking

Inactive Publication Date: 2022-01-11
SHANGHAI BAOSTEEL CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the action of long-term cold and heat stress, the stave will eventually crack. The strain stress caused by the overall expansion of the stave will directly cause cracks in the internal water pipes and cause water leakage in the stave. A large amount of water leakage in the stave means that the blast furnace reached the end of life

Method used

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  • Water pipe reinforcing rib type cooling wall
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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] see figure 1 and figure 2 , The present invention provides a water pipe stiffener type stave, the stave is composed of a stave body 1, a cooling water pipe 2, a protection pipe 3 and a mesh rib 4.

[0020] A cooling water pipe 2 is arranged on the stave body 1, a protective pipe 3 is installed at the inlet and outlet of the cooling water pipe 2, and mesh reinforcement ribs 4 are fixedly laid above and below the cooling water pipe 2, which are the upper mesh reinforcement ribs and the lower layer respectively. Mesh reinforcement. The upper layer of mesh reinforcement and the lower layer of mesh reinforcement are laid to fix the water pipe and prevent the water pipe from floating up and down when it is washed by high-temperature molten metal.

[0021] The mesh reinforcing rib 4 is composed of several vertically arranged ribs and several horiz...

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Abstract

The invention relates to a water pipe reinforcing rib type cooling wall. The cooling wall is provided with a cooling water pipe, the cooling water pipe is arranged on a cooling wall body, a protection pipe is arranged at an inlet and an outlet of the cooling water pipe, and net-shaped reinforcing ribs are fixedly laid above and below the cooling water pipe and are respectively an upper-layer net-shaped reinforcing rib and a lower-layer net-shaped reinforcing rib; and the net-shaped reinforcing ribs are composed of a plurality of longitudinally-arranged ribs and a plurality of transversely-arranged ribs, the longitudinal ribs and the transversely-arranged ribs intersect with each other, and the intersection points are fixedly connected. The upper-layer net-shaped reinforcing ribs and the lower-layer net-shaped reinforcing ribs are laid above and below the cooling water pipe, the effect of fixing the water pipe is achieved, the tensile strength of the cooling wall body is improved, and the cooling wall body can bear large force without cracks; and the cracking time of the cooling wall is delayed in the using process of a blast furnace, an internal water pipe is protected against small strain stress, so that the service life of the cooling wall is prolonged, and the overall service life of the blast furnace is prolonged.

Description

technical field [0001] The invention belongs to the metallurgical casting industry, in particular to a rib-type cooling wall for a cooling water pipe on a blast furnace. Background technique [0002] The blast furnace stave is a key component in the entire blast furnace, and its life directly affects the service life of the entire blast furnace. At present, the service life of small blast furnaces in China is 5-8 years, that of super-large blast furnaces is 10-15 years, and that of super-large blast furnaces in individual iron and steel enterprises is 18-20 years. [0003] In super-large blast furnaces, the life of staves is directly related to the overall life of the blast furnace. During more than ten years of use, the staves have been cooling the furnace shell at high temperatures to protect the refractory bricks in the blast furnace. Under the action of long-term cold and heat stress, the stave will eventually crack. The strain stress caused by the overall expansion of ...

Claims

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Application Information

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IPC IPC(8): C21B7/10
CPCC21B7/10
Inventor 谷孝敬
Owner SHANGHAI BAOSTEEL CASTING
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