Multilayer cooling blast-furnace cooling stave and processing technology thereof

A processing technology and cooling wall technology, applied in cooling devices, metal processing equipment, manufacturing tools, etc., can solve problems such as poor cooling effect and melting of cooling water pipes, to ensure cooling effect, improve cooling uniformity, and increase distribution. effect of length

Active Publication Date: 2017-08-22
MAANSHAN RUNTONG HEAVY IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art that the blast furnace stave is prone to melt-through of the cooling water pipe and the cooling effect is not good, and provides a multi-layer cooling blast furnace stave and its processing technology. Layered cooling pipes enhance the cooling effect, and strictly control the processing process to effectively prevent the cooling water pipe from melting through, so that it can achieve the technical effect of "melting without melting" and "seamless fusion"

Method used

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  • Multilayer cooling blast-furnace cooling stave and processing technology thereof
  • Multilayer cooling blast-furnace cooling stave and processing technology thereof
  • Multilayer cooling blast-furnace cooling stave and processing technology thereof

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Embodiment 1

[0042] A kind of processing technique of the blast furnace stave of multilayer cooling of the present embodiment, comprises the following steps:

[0043] Step 1. Manufacturing and testing of stave wooden molds: making stave wooden molds according to the structural shape of stave body 1, and testing the shape and dimension accuracy of the stave wooden molds, and selecting qualified products to enter the next process; 1 is structured as figure 2 and image 3 shown, press figure 2 In terms of the middle position, the bottom surface of the stave body 1 bottom is the inner working surface, and the inner side surface of the stave body 1 is provided with a brick-embedded groove 101 for inlaying refractory bricks; The overall length and width of the inner side of the brick-embedded groove 101 is 1.6% larger than that of the stave body 1, and the overall length and width of the outer side of the wooden formwork of the stave away from the brick-embedded groove 101 is 2.1% larger tha...

Embodiment 2

[0060] The processing technology of the blast furnace stave of a kind of multi-layer cooling of the present embodiment is basically the same as embodiment 1, and difference is:

[0061] In step 1 of the present embodiment, the stave wood formwork is provided with the length and width of the inner side of the brick-embedded groove 101. The overall size is 1.8% larger than the stave body 1, and the length and width of the outer side of the stave wood formwork away from the brick-embedded groove 101 are overall. The dimensions are all 2.2% larger than the stave body 1;

[0062] In this embodiment, the thickness H1 of the cold iron 111 is 2 / 3 of the wall thickness H2 of the cooling water pipe. The length of a single piece of cuboid-shaped cold iron 111 is 5 cm and the width is 5 cm. The cold iron 111 at the bottom of a certain straight section of the cooling water pipe The total length L1 of the cooling water pipe is 1 / 35 of the length L2 of the straight section of the cooling wat...

Embodiment 3

[0065] The processing technology of the blast furnace stave of a kind of multi-layer cooling of the present embodiment is basically the same as embodiment 1, and difference is:

[0066] In step 1 of the present embodiment, the length and width of the inner side of the stave wood formwork provided with the brick-embedded groove 101 are all 1.7% larger than the stave body 1, and the length and width of the outer side of the stave wood formwork away from the brick-embedded groove 101 are overall The dimensions are all 2.2% larger than the stave body 1;

[0067] In the present embodiment, the monolithic length of the cuboid flaky cold iron 111 is 5.5 cm, and the width is 4.5 cm. The total length L1 of the cold iron 111 at the bottom of a certain section of the straight section of the cooling water pipe is 1 of the length L2 of this section of the straight section of the cooling water pipe. / 30, the cold iron 111 at the lower part of the straight section of the cooling water pipe i...

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Abstract

The invention discloses a multilayer cooling blast-furnace cooling stave and a processing technology thereof, and belongs to the field of cooling staves. The processing technology comprises the following steps that 1, a cooling stave wood pattern is produced; 2, a sand mold is produced and cooling water pipes are arranged, wherein the cooling stave wood pattern is put into a sand box, sand molding is compacted, the cooling stave wood pattern is taken out and a mold cavity is formed, and the cooling water pipes are distributed in the mold cavity; each cooling water pipe comprises a first cooling water pipe, a second cooling water pipe and a third cooling water pipe; 3,molten steel is poured into the mold cavity and casting is started; 4, cooling molding is conducted after casting. The processing technology can overcome the shortage that over smelting of the cooling water pipes occurs in the cooling stave easily, multilayer cooling pipes are paved in the cooling stave to strengthen the cooling effect, the machining process is controlled strictly, over smelting of the cooling water pipes is avoided effectively, and the technical effects of smelting but not melt and seamless fusion can be achieved.

Description

technical field [0001] The invention relates to the technical field of staves, and more specifically relates to a multi-layer cooled blast furnace stave and its processing technology. Background technique [0002] The cooling stave is the cooling equipment for the metallurgical blast furnace, which can protect the metallurgical blast furnace from the erosion and mechanical wear of high-temperature fluid in the furnace body, prolong the life of the metallurgical blast furnace, and ensure its safe and stable production. Once there is a problem with the cooling equipment, the metallurgical blast furnace must be completely shut down for maintenance, which will cause major economic losses. Therefore, the life and performance of the stave determine the life of the metallurgical blast furnace, which is an important guarantee for the long life, high efficiency and energy saving of the metallurgical blast furnace. Currently, the stave material generally used in the industry is mainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/10B22C9/24B22C9/02
CPCB22C9/02B22C9/24C21B7/10
Inventor 朱童斌李以则庆辉李振东
Owner MAANSHAN RUNTONG HEAVY IND TECH CO LTD
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