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High-temperature wear-resistant water beam of air-guiding wall

A technology of air guide wall and high temperature resistance, applied in the field of water beams, which can solve the problems of short service life and achieve the effects of improving service life, maintaining uniformity of wall thickness and less non-metallic inclusions

Inactive Publication Date: 2013-04-24
NANJING UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] In order to solve the problem of short service life of the existing water beam of the wind guide wall, the invention provides a water beam of the wind guide wall

Method used

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  • High-temperature wear-resistant water beam of air-guiding wall
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Embodiment Construction

[0022] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] Figure 1 to Figure 3 It shows the main structure of the high-temperature-resistant and wear-resistant wind-guiding wall water beam of the present invention, in which the main component is the water-passing steel pipe 1 (that is, the water beam pipe mentioned in the background art). As pointed out in the background technology section, the working environment of the water-passing steel pipe 1 is harsh, which is the main reason for the short service life of the water-passing steel pipe of the water beam of the wind guide wall in the prior art.

[0024] Improving the ability of water-passing steel pipes to withstand harsh working environments is an important means to increase the service life of the water beams of the wind-guiding wall. The water-passing steel pipe 1 of the water beam of the wind guide wall of the present invention adop...

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Abstract

The invention provides a high-temperature wear-resistant water beam of an air-guiding wall. The high-temperature wear-resistant water beam comprises a plurality of parallelly arranged water circulating steel tubes, and the steel tubes are manufactured via centrifugal casting method and made of superstrong heat resistant steel. The superstrong heat resistant steel comprises, by weight, 0.2-0.45% of C, 22-28% of Cr, 3.5-13% of Ni, 0.1-0.4% of Si, 0.1-0.4% of N, 0.01-3% of RE, 0.15-2.3% of Mo, 0.15-2.3% of W, 0-13% of Co, 1-13% of Mn, 0.0005-0.10% of Mg, and the balance Fe and impurities. The high-temperature wear-resistant water beam of the air-guiding wall is long in service life.

Description

technical field [0001] The invention relates to a water beam used to support a wind guiding wall in a furnace. Background technique [0002] The water beam of the air guide wall is one of the main skeletons inside the shaft furnace. The main components are multiple pipes, which are an important part of the shaft furnace. It acts as a wind guide. The working environment in the furnace where the water beam of the air guide wall is relatively harsh, it not only has to bear the weight of the air guide wall, but also bears the scour of high temperature and high speed cooling air mixed with dust. The service life of the water beam of the wind guide wall is relatively short, generally only 3-4 months. This results in frequent shutdowns of the shaft furnace for maintenance, resulting in high production costs. [0003] The main reasons for the short service life of the water beams of the air guide wall are as follows: [0004] 1. The temperature of the shaft furnace where the wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B1/10F27B1/24B22D13/00C22C38/58C22C38/52
Inventor 叶旭初张光华
Owner NANJING UNIV OF TECH
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