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Water-cooled iron storage type iron runner and cooling method thereof

A technology of water cooling and iron channel, which is applied in the direction of discharge device, inspection device, etc., can solve the problems of short service life, environmental pollution, high labor intensity, etc., and achieve the effect of increasing service life, improving working environment and preventing iron leakage

Active Publication Date: 2015-01-28
北京联合荣大工程材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the early days, the main ditch of the blast furnace was made of ramming refractory materials and dry ditch (non-storage type) structure, which had a short service life, frequent maintenance, high labor intensity, environmental pollution, high material consumption, and delayed production

Method used

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  • Water-cooled iron storage type iron runner and cooling method thereof
  • Water-cooled iron storage type iron runner and cooling method thereof
  • Water-cooled iron storage type iron runner and cooling method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Such as figure 1 , figure 2 , image 3 As shown, a water-cooled iron-storage iron trench includes an iron-storage iron trench 1, a water-cooled assembly 2 and a temperature measuring and monitoring device 7. The iron-storage iron trench 1 is connected to a blast furnace 6; the left side structure of the iron trench is a water-cooled assembly 2. It is placed on the inside of the side wall of the front half of the trench 1 and is in direct contact with the lining castable; the water inlet pipe 3 and the water outlet pipe 4 of the circulating water circuit are connected to the water cooling assembly 2; the circulating water collection bucket 5 is connected to the water inlet pipe 3 and the water outlet pipe 4 and temperature measurement and monitoring device 7; a plurality of water-cooled components 2 form a continuous row, and the continuous row is placed on the inner side of the side wall of the front half of the trench 1;

[0024] The structure on the right sid...

Embodiment 2

[0029] Example 2: Such as figure 1 , figure 2 , image 3 As shown, a water-cooled iron storage type iron trench, in another embodiment of the present invention, the structure of the water-cooled iron storage type iron trench is the same as the first embodiment. The cermet pouring body of the water-cooled component is formed by pouring refractory material, which contains 10% by weight of metal fiber and 90% by weight of refractory. The water-cooling component is a rectangular block with a thickness of 100mm, a width of 2000mm, and a height of 500mm, covering the entire length of the sidewall of the iron trench to achieve full-length water cooling of the main trench. The water paths between the water cooling components are connected in parallel.

Embodiment 3

[0030] Example 3: Such as figure 1 , figure 2 , image 3 As shown, a water-cooled iron storage type iron trench includes an iron storage type iron trench, a water-cooled component, a circulating water circuit and a temperature measurement monitoring system; the water-cooled component is placed on the inside of the side wall of the front half of the iron trench, and is lined with castable Direct contact; the cooling water is introduced from the blast furnace cooling water system to the water-cooled component to cool the lining of the iron trench side wall, and the cooling water flowing out of the water-cooled component flows to the circulating water collection bucket of the blast furnace platform to form a circulating water path; monitored by the temperature monitoring system The temperature of the inlet and outlet water of the water-cooled component.

[0031] The water cooling component includes a water pipe, a cermet pouring body and a metal back plate. The water pipe is laid o...

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Abstract

The invention discloses a water-cooled iron storage type iron runner and a cooling method thereof, and belongs to the technical field of blast furnace iron tapping runners. A water-cooled assembly is arranged on the inner side wall of the front half section of an iron runner groove (close to an iron falling point of a blast furnace tap hole) and is in direct contact with a lining casting material; cooling water introduced from a blast furnace cooling water system is introduced into the water-cooled assembly to cool a lining on the side wall of the iron runner, the cooling water flowing out of the water-cooled assembly flows to a blast furnace platform circulating water collecting bowl to form a circulating water passage; and a temperature measurement monitoring system monitors the inlet water temperature and the outlet water temperature of the water-cooled assembly to judge the working state of the water-cooled assembly, so as to timely take necessary safety measures and prevent iron permeation blast accidents of the iron runner. The service life of the water-cooled iron storage type iron runner is greatly prolonged and can reach half a year or a longer time, and the effects of reducing cost, increasing benefits and reducing consumption and emission can be achieved.

Description

Technical field [0001] The invention relates to a water-cooled iron storage type iron trench and a cooling method, belonging to the technical field of blast furnace tapping trenches. Background technique [0002] In the early stage, the main ditch of the blast furnace used ramming refractory materials and dry ditch (non-storage type) structure, which has a short service life, frequent maintenance, high labor intensity, environmental pollution, high material consumption, and delays in production. [0003] Later, the iron storage type iron trough cast with refractory castables was generally used. During the tapping period and the interval between tapping, a large amount of molten iron was always stored in the iron trough. Therefore, the temperature environment of the iron trough refractory material was relatively constant, and during the tapping period The force of the molten iron rushing out and falling from the tap hole against the bottom of the ditch is buffered by the molten iron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/14C21B7/24
CPCC21B7/14C21B7/24
Inventor 章荣会刘贯重
Owner 北京联合荣大工程材料股份有限公司
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