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Blast furnace permanent ceramic tapping iron ladle and preparation method thereof

A permanent, ceramic technology, applied to blast furnaces, blast furnace details, blast furnace parts, etc., can solve problems such as unstable properties of blasting clay, erosion of molten iron and slag, instability of taphole ladle, etc., to reduce blasting The effect of mud consumption, protection of iron mouth channel, and improvement of physical and chemical properties

Active Publication Date: 2018-11-09
ZHENGZHOU SAIWO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The shape and firmness of the traditional blast furnace mud bag formed by plugging mud are affected by factors such as the mud cannon's mud beating pressure, mud beating speed, mud beating operation method, and the quality of the blast furnace mud. , The number of blast furnace tapping times is gradually increasing, and the number of tap holes is correspondingly increased. The phenomenon of unstable mud ladle and weak formation of the tap hole occurs from time to time. In serious cases, the lining refractory around the tap hole will be eroded by molten iron and slag. Cause the tap hole to be unstable and affect the service life
[0013] The existing mud bag (tapping bag) is to drive the clay into the tap hole through the mud gun, and then form a mud bag in the process of tapping, but the main property of the existing gun mud is unstable, and the use of the mud gun will cause lead to waste of gunpowder

Method used

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  • Blast furnace permanent ceramic tapping iron ladle and preparation method thereof

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Effect test

Embodiment 1

[0041] A permanent ceramic tapping ladle for blast furnace, consisting of raw materials of the following weights: dense corundum 190kg, zirconium corundum 240kg, chromium corundum 110kg, calcium titanate 240kg, silicon nitride aluminum oxide 100kg, metal silicon powder 60kg, ceramic bond 60kg, 60kg of silicone modified resin.

[0042] In this embodiment, the ceramic bonding agent is boron glass powder.

[0043] The preparation method includes the following steps:

[0044] Step 1: Weigh dense corundum, zirconium corundum, chromium corundum, calcium titanoaluminate, silicon aluminum oxide, metal silicon powder, ceramic bonding agent, and silicone modified resin;

[0045] Step 2: Put the dense corundum, zirconium corundum, and chromium corundum in step one into the mixer, dry blend for 3-5 minutes at a dry mixing speed of 80r / min, and then add 50% by weight of silicone modified resin, continue Mix and grind for 5-8 minutes, then add calcium titanoaluminate, silicon aluminum oxide, metal...

Embodiment 2

[0050] A permanent ceramic tapping ladle for blast furnace, which is composed of raw materials of the following weights: dense corundum 120kg, zirconium corundum 170kg, chromium corundum 110kg, calcium titanate 200kg, silicon nitride aluminum oxide 90kg, metal silicon powder 90kg, ceramic bond 90kg, 75kg of silicone modified resin.

[0051] In this embodiment, the ceramic bonding agent is boron glass powder.

[0052] The preparation method includes the following steps:

[0053] Step 1: Weigh dense corundum, zirconium corundum, chromium corundum, calcium titanoaluminate, silicon aluminum oxide, metal silicon powder, ceramic bonding agent, and silicone modified resin;

[0054] Step 2: Put the dense corundum, zirconium corundum, and chromium corundum in step one into the mixer, dry blend for 3-5min, dry blending speed 100r / min, then add 80% by weight of silicone modified resin, continue Mix and grind for 5-8 minutes, then add calcium titanoaluminate, silicon aluminum oxide, metal silico...

Embodiment 3

[0059] A permanent ceramic tapping ladle for blast furnace, consisting of raw materials of the following weights: 230kg of dense corundum, 310kg of zirconium corundum, 140kg of chromium corundum, 270kg of calcium titanoaluminate, 130kg of silicon nitride aluminum oxide, 70kg of metal silicon powder, ceramic bond 90kg, 65kg of silicone modified resin.

[0060] In this embodiment, the ceramic bonding agent is potash feldspar powder.

[0061] The preparation method includes the following steps:

[0062] Step 1: Weigh dense corundum, zirconium corundum, chromium corundum, calcium titanoaluminate, silicon aluminum oxide, metal silicon powder, ceramic bonding agent, and silicone modified resin;

[0063] Step 2: Put the dense corundum, zirconium corundum, and chromium corundum in step one into the mixer, dry blend for 3-5 minutes at a speed of 110r / min, and then add 65% by weight of silicone modified resin, continue Mix and grind for 5-8 minutes, then add calcium titanoaluminate, silicon al...

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Abstract

The invention discloses a blast furnace permanent ceramic tapping iron ladle and a preparation method thereof, which relates to the field of smelting blast furnaces. The blast furnace permanent ceramic tapping iron ladle is prepared from the following raw materials in parts by weight: 10 to 23 parts of compact corundum, 12 to 31 parts of zirconium corundum, 6 to 15 parts of chromium corundum, 11 to 27 parts of titanium calcium aluminate, 5 to 14 parts of oxygen aluminum silicon nitride, 3 to 9 parts of metal silicon powder, 4 to 9 parts of ceramic binder, and 5 to 8 parts of organic silicon modified resin. By adopting the blast furnace permanent ceramic iron ladle, the resource can be effectively saved, and the obtained tapping iron ladle is stable in performance and long in service life.

Description

Technical field [0001] The invention relates to the field of smelting blast furnaces, in particular to a blast furnace permanent ceramic tapping ladle and a preparation method thereof. Background technique [0002] The blast furnace tap is the key part of the blast furnace. The molten iron and slag are discharged through the blast furnace tap. The operation and maintenance of the blast furnace tap determines the working condition of the tap, and also has a decisive impact on the life of the blast furnace. The traditional blast furnace taphole mud bag is formed by the mud cannon driven into the furnace along the taphole channel when the blast furnace is blocked. The mud bag can be attached to the inside of the furnace wall around the blast furnace taphole for protection This part of the furnace wall. Traditional iron mouth mud bags can be divided into original mud bags and newly generated mud bags. The original mud pack is formed by artificially piling up the gun mud before the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/106C04B35/105C04B35/622C21B7/12
CPCC04B35/105C04B35/106C04B35/622C04B2235/3201C04B2235/3208C04B2235/3222C04B2235/3236C04B2235/3272C04B2235/365C04B2235/3869C04B2235/428C04B2235/77C04B2235/96C04B2235/9676C21B7/125
Inventor 常正钦李星燃吕雪艳付武斌陈要学韩文茜
Owner ZHENGZHOU SAIWO TECH CO LTD