A preparation method of pouring material for skimming equipment

A pouring material and equipment technology, which is applied in the field of preparation of pouring materials for slag skimming equipment, can solve problems such as short service life, and achieve the effect of improving service life, ensuring furnace conditions and good stability

Active Publication Date: 2019-01-18
MAANSHAN HUASHENG METALLURGICAL SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the shortcomings of short service life and high frequency of repair and replacement in the prior art, and provide a method for preparing castables for the skimming equipment. The skimming equipment prepared by the present invention uses creative raw material The distribution ratio not only greatly improves the service life of the equipment, but also ensures the normal production order of the blast furnace, and is easy and convenient to manufacture

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A kind of slag skimming equipment in blast furnace tapping process of the present embodiment is made up of refractory aggregate and binder, and the quality of described binder is 8% of the mass of refractory aggregate; Each group of described refractory aggregate It consists of the following parts by mass: 90kg of corundum bricks, 80kg of mullite, 18kg of zircon, 15kg of Suzhou soil, 12kg of coke, 8kg of wind-quenched converter slag, 2kg of Newman powder and 2kg of copper ore.

[0045]And to illustrate here, the particle size composition of the corundum brick is: particle size≤0.074mm: 30% (mass percentage), 0.074-1.0mm: 50% (mass percentage), 1-3mm: 20% (mass percentage) The particle size composition of described mullite is: particle size≤0.074mm: 20% (mass percentage), 0.074-1.5mm: 40% (mass percentage), 1.5-3.5mm: 40% (mass percentage); The particle size of the coke is ≤0.074mm. The particle size of the zircon in this embodiment is 0.5-2.0mm, adding a specific propo...

Embodiment 2

[0072] The basic content of this embodiment is the same as that of Example 1, except that the quality of the binder in this embodiment is 7.5% of the quality of the refractory aggregate; each component of the refractory aggregate is composed of the following parts by mass: Corundum brick 85kg, mullite 75kg, zircon 16kg, Suzhou soil 14kg, coke 10kg, converter wind quenching slag 6kg, Newman powder 1kg and copper ore 1kg. The components of the binder in this embodiment are composed in parts by mass as follows: 75 kg of asphalt, 20 kg of phenolic resin, 8 kg of guar gum, 6 kg of polyurethane, 8 kg of cellulose acetate, 2 kg of butyl acrylate and 1 kg of guar gum.

[0073] A kind of skimming equipment in blast furnace tapping process of the present embodiment, its specific preparation method is as follows:

[0074] Step 1: Prepare refractory aggregate

[0075] (1) Weigh 85kg of corundum bricks, 75kg of mullite, 16kg of zircon, 14kg of Suzhou soil and 10kg of coke in parts by mass...

Embodiment 3

[0095] The basic content of this embodiment is the same as that of Example 1, except that the quality of the binder in this embodiment is 6% of the quality of the refractory aggregate; each component of the refractory aggregate is composed of the following parts by mass: 80kg of corundum brick, 60kg of mullite, 14kg of zircon, 12 parts of Suzhou soil, 8kg of coke, 5kg of converter wind quenching slag, 1kg of Newman powder and 1kg of copper ore; the components of the binder in this embodiment are as follows Composition: Asphalt 70kg, phenolic resin 10kg, guar gum 5kg, polyurethane 5kg, cellulose acetate 7kg, butyl acrylate 2kg and guar gum 1kg.

[0096] A kind of skimming equipment in blast furnace tapping process of the present embodiment, its specific preparation method is as follows:

[0097] Step 1: Prepare refractory aggregate

[0098] (1) Weigh 80kg of corundum bricks, 60kg of mullite, 14kg of zircon, 12kg of Suzhou soil and 8kg of coke according to the number of parts b...

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Abstract

The invention discloses a preparation method of a drossing equipment castable, and belongs to the technical field of slag-iron separation equipment in the blast furnace tapping process.The method comprises the steps that 1, refractory aggregates are prepared; 2, a binding agent is prepared; 3, the binding agent prepared in the second step is added into a mixer in the first step, wherein the mass of the binding agent is 6%-8% of that of the refractory aggregates, the binding agent and the refractory aggregates are mixed to be uniform, and the drossing equipment castable is obtained.According to the prepared drossing equipment castable, by means of creative component proportioning, the drossing equipment prepared through baking has good abrasion resistance, thermal shock resistance and erosion resistance, the service life of the drossing equipment is about 50 days under the situation that the drossing equipment is not repaired, the service life of the drossing equipment is greatly prolonged, it is better guaranteed that a blast furnace is stable in furnace condition and smooth in operation, and the production cost of iron and steel enterprises is reduced.

Description

[0001] The patent application of the present invention is a divisional application with the application number: 2014104438782. The filing date of the original application is: 2014-09-02. The name of the invention is: a preparation method of slag skimming equipment in the blast furnace tapping process. technical field [0002] The invention relates to the technical field of slag-iron separation equipment in the tapping process of a blast furnace, and more specifically, relates to a method for preparing castables for slag skimming equipment. Background technique [0003] Blast furnace ironmaking is the most widely used ironmaking process. The high-temperature molten iron smelted in the blast furnace is mixed with the slag and flows out from the taphole. steelmaking. In order to prevent harmful components in the slag from entering the molten iron again, slag-iron separation equipment is required to separate high-temperature slag-iron during the blast furnace tapping process. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/106C04B35/622C04B35/632C04B35/634C04B35/636C21B7/14
CPCC04B35/106C04B35/622C04B35/632C04B35/63456C04B35/63476C04B35/63496C04B35/636C04B35/6365C04B2235/3272C04B2235/3281C04B2235/3463C04B2235/349C04B2235/422C04B2235/48C04B2235/656C21B7/14Y02P10/20
Inventor 姜峰张乾坤俞书才吴雪健
Owner MAANSHAN HUASHENG METALLURGICAL SCI & TECH DEV
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