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Quick-drying self-flowing castable used for blast furnace casting runner and made from reclaimed waste castable

A blast furnace tapping and castable technology, applied in the field of refractory materials, can solve the problems of no economic and social benefits, and achieve the effects of significant economic and social benefits, energy saving, and high medium and low temperature strength.

Inactive Publication Date: 2018-05-18
河南欣昌耐材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, no obvious economic and social benefits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The quick-drying self-flowing castable for the blast furnace iron trough prepared by the present invention by utilizing the regenerated material of the discarded castable is represented by weight percent, consisting of 50% of the recycled castable of the discarded castable, 17% of dense corundum, 16% of black silicon carbide, and nitrided Silicon 5%, composite water reducing agent 1%, composite explosion-proof agent 1%, SiO 2 Sol 2%, silica powder 2%, activated alumina powder 3% and silica powder 3%.

Embodiment 2

[0052] The quick-drying self-flowing castable for the blast furnace iron trough prepared by the present invention using the recycled material of the waste castable is expressed in weight percent, consisting of 52% of the recycled waste castable, 15% of dense corundum, 18% of black silicon carbide, and nitrided Silicon 3%, composite water reducer 2%, composite explosion-proof agent 1%, SiO 2 Sol 2%, silica powder 1%, activated alumina powder 4% and silica powder 2%.

Embodiment 3

[0054] The quick-drying self-flowing castable for the blast furnace iron trough prepared by the present invention using the recycled material of the discarded castable is expressed in weight percent, consisting of 48% of the recycled castable of the discarded castable, 20% of dense corundum, 14% of black silicon carbide, and nitrided Silicon 3%, composite water reducing agent 1%, composite explosion-proof agent 2%, SiO 2 Sol 3%, silica powder 3%, activated alumina powder 2% and silica powder 4%.

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Abstract

The invention discloses quick-drying self-flowing castable used for a blast furnace casting runner and made from reclaimed waste castable. The quick-drying self-flowing castable is mainly made from, by weight, 48-52% of reclaimed waste castable, 15-20% of compact corundum, 14-18% of black silicon carbide, 3-7% of silicon nitride, 1-2% of a composite water reducer, 1-2% of a composite anti-knock agent, 1-3% of SiO2 sol, 1-3% of silicon dioxide micropowder, 2-4% of activated aluminium oxide micropowder and 2-4% of silica micropowder. Waste self-flowing castable used for an iron runner is taken as a main raw material to prepare quick-drying self-flowing castable which is high in additional value and good in performance, is superior and is used for a blast furnace casting runner. The production cost of an enterprise is reduced, the natural environment is protected, the national environmental protection policy is met, and a great amount of energy is saved. The quick-drying self-flowing castable is significant in economic and social benefit.

Description

1. Technical field: [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a quick-drying self-flowing castable for a blast furnace tapping trough prepared by using recycled waste castables. 2. Background technology: [0002] With the continuous development and progress of science and technology, human beings' demand for natural resources continues to intensify. However, resources are not endless, and to continue human society, new sources of energy must be found. The proposal of waste recycling has found a "second resource" for human beings. [0003] Steel, cement, glass and other high-temperature industries and various industrial kilns all need to consume a large amount of refractory materials, which will inevitably produce a large amount of waste refractory materials; in addition, refractory material manufacturers will also generate a large amount of Scrap and refractory waste. These waste refractory materials that are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/63C04B35/632
CPCC04B35/62204C04B35/6303C04B35/6316C04B35/632C04B35/66C04B2235/3217C04B2235/3418C04B2235/383C04B2235/3873C04B2235/5212
Inventor 赵国栋赵亚辉
Owner 河南欣昌耐材股份有限公司
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