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Converter water-cooling furnace mouth and preparation process thereof

A preparation process and water-cooled furnace technology, which is applied in the manufacture of converters, etc., can solve problems such as the two ends of the water pipe being easily burned by high temperature, and the cast iron cracks at the mouth of the water-cooled furnace, so as to reduce the consumption, increase the heat transfer, avoid the scurrying effect

Active Publication Date: 2017-10-20
四川大信重工机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to: aim at the "steel box frame type" water-cooled furnace mouth, where the two ends of the water pipe are easily burned by high temperature due to uneven water flow, and the cast iron with the water-cooled furnace mouth existing in the "S"-shaped steel pipe cast iron water-cooled furnace mouth To solve the problem of cracks, the utility model provides a converter water-cooled furnace mouth and its preparation process

Method used

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  • Converter water-cooling furnace mouth and preparation process thereof
  • Converter water-cooling furnace mouth and preparation process thereof
  • Converter water-cooling furnace mouth and preparation process thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0058] The technical solution of this embodiment is: a water-cooled furnace mouth of a converter, the converter water-cooled furnace mouth is composed of two semi-circular furnace mouth boxes 100 with the same structure, which are formed by annular splicing, and the semi-circular furnace mouth box 100 includes upper and lower The semicircular panel 9 and the semicircular bottom plate 7 and the water pipes 2 are fixedly connected with the inner side of the semicircular panel 9 and the inner side of the semicircular bottom plate 7; The first partition 4 and the second partition 6 are parallel to the water pipe 2, the first partition 4 and the water pipe 2 form a first water flow channel 11, and the first partition 4 and the second partition 6 form a second water flow channel 12, at least one of the first water flow channel (11) and the second water flow channel 12 is provided with a number of baffles 5, and the adjacent baffles 5 are staggered; the water pipe 2, the first water f...

Embodiment 2

[0061] On the basis of the first embodiment, the technical solution of this embodiment is as follows: the water inlet device 1 has a rectangular cavity structure; A water inlet pipe 101 is connected to the cavity structure, one side of the rectangular cavity structure is communicated with the water pipe 2, and a third water outlet 103 is opened at the communication place, and the other end of the water pipe 2 communicated with the rectangular cavity structure is provided with the water pipe 2. The first water outlet 3 communicated with the first water flow channel 11, the second water outlet 8 communicated with the second water flow channel 12 is opened at the other end of the first partition 4 and the water pipe 2. The other end of the second water flow channel 12 that communicates with the first remote water flow channel 11 is connected to the water outlet pipe 10 .

[0062] like image 3 , Image 6 As shown, the cooling water flows through the water pipe 2 from the third ...

Embodiment 3

[0064] On the basis of the second embodiment, the technical solution of this embodiment is as follows: the third water outlet 103 is provided with a first baffle group 102 along the radial direction of the cross-sectional circle of the water pipe 2, and the first baffle group 102 and the The ends of the adjacent water pipes 2 form a first cavity 201; the first water outlet 3 is provided with a second baffle group 301 along the radial direction of the cross-sectional circle of the water pipe 2, and the second baffle group 301 is adjacent to the The end of the water pipe 2 forms a second cavity 202 .

[0065] like image 3 , Image 6 and Figure 8 As shown, when the cooling water flows through the third water outlet 103, a small part of the water enters the first cavity 201, so as to avoid the phenomenon that the end of the water pipe 2 close to the first baffle group 102 is burnt out due to lack of water. ; When the cooling water flows through the first water outlet 3, a sma...

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Abstract

The invention discloses a converter water-cooling furnace mouth, which is formed by ringwise splicing two semi-circular furnace mouth boxes with same structure. Each semi-circular furnace mouth box comprises a semi-circular panel and a semi-circular bottom plate arranged up and down; a first clapboard and a second clapboard parallel to a water pipe are arranged between each semi-circular panel and each semi-circular bottom plate; each first clapboard and the water pipe form a first water flow channel; each first clapboard and each second clapboard form a second water flow channel; a plurality of baffle plates are arranged in at least one of the first water flow channel and the second water flow channel; each two adjacent baffle plates are arranged in a staggering way; a two-circuit and three-pass structure is arranged, so that the retention time of cooling water in the furnace mouth is increased, and the usage amount of the cooling water is saved; with the baffle plates, paths for the cooling water to flow through are increased, the flow rate of the cooling water is increased, and the heat transfer efficiency is improved; and a preparation process is characterized by adopting a v-shaped groove for welding, slotting the welding port into the v-shaped groove after finishing welding, and re-welding, wherein the process is repeated for 3 to 5 times.

Description

technical field [0001] The invention belongs to the technical field of converter accessories, and in particular relates to a water-cooled furnace mouth of a converter and a preparation process thereof. Background technique [0002] Domestic use of oxygen top-blown converter steelmaking is carried out at high temperatures above 1600 °C. The converter furnace body is generally composed of three parts: furnace cap, furnace shell and furnace bottom. In order to prolong the service life of the metal shell and furnace lining of the furnace cap, a circular furnace mouth is generally provided on the top of the furnace cap, so that the oxygen lance can be fed into the furnace during operation. In order to protect the furnace mouth, circulating water is generally used to cool the furnace mouth. At present, the usual water-cooled furnace mouth has two structural forms: First, the "S"-shaped steel pipe is pre-buried, and the gray cast iron is cast into a circular arc block at one time....

Claims

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Application Information

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IPC IPC(8): C21C5/46
CPCC21C5/46C21C5/4646
Inventor 李斌
Owner 四川大信重工机械制造有限公司
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