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Regenerated ramming mass manufactured by waste main blast furnace trough castables

A technology for regenerating ramming material and ramming material, which is applied in the field of reclaiming ramming material, can solve the problems of the influence of the performance of the regenerated ramming material and the large amount of impurities, so as to improve the anti-oxidation performance and anti-heat damage performance, and bring in less impurities. , the effect that is beneficial to the use of performance

Inactive Publication Date: 2009-12-30
WUHAN IRON & STEEL (GROUP) CORP
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] To sum up, except that "The First Baosteel Metallurgical Waste Resources Comprehensive Utilization Technology Forum Papers Compilation" 2006 pages 310-312 publicly disclosed that slag trench ramming materials were produced by using granules made from recycled slag and iron trench waste and blast furnace dust collection powder , and the rest are mostly studied from the perspective of baking-free ramming materials. There are few research reports on how to use waste blast furnace main ditch castables to prepare recycled ramming materials. Although there are reports of mixing blast furnace dust powder with recycled raw materials, but Since blast furnace dust collection powder is mainly composed of coke powder, iron ore powder, and coal powder, there are too many impurities in it, which affects the performance of recycled ramming material
It must be noted that while using a certain proportion of recycled raw materials to manufacture recycled ramming materials, it is necessary to ensure no slag iron leakage, long life, safety and reliability, and no relevant reports have been seen so far.

Method used

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  • Regenerated ramming mass manufactured by waste main blast furnace trough castables

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Embodiment 1

[0018] Components and percentages: 45% of corundum with a particle size of 8-1mm, 20% of regenerated corundum with a particle size of 8-1mm, 5% of corundum aggregate with a particle size of 0-1mm, and 3% of fine corundum powder with a particle size of ≤0.088mm 11.8% of waste main channel material fine powder with a particle size of ≤0.088mm, 5% of silicon carbide with a particle size of ≤1mm, 1% of metal silicon with a particle size of ≤1mm, 5% of asphalt powder, 4% of phenolic resin, and 0.2 urotropine as a curing agent , plus 3% ethylene glycol.

Embodiment 2

[0020] Components and percentages: 25% alumina with a particle size of 8-1mm, 20% corundum with a particle size of 8-1mm, 10% regenerated corundum with a particle size of 8-1mm, 3% corundum aggregate with a particle size of 0-1mm, 7% corundum fine powder with a particle size of ≤0.088mm; 10% of waste main channel material fine powder with a particle size of ≤0.088mm; 10% of silicon carbide with a particle size of ≤1mm; 3% of metal silicon with a particle size of ≤1mm; Resin 10%, curing agent urotropine 1%.

Embodiment 3

[0022] Components and percentages: 15% bauxite with a particle size of 8-1mm, 30% corundum with a particle size of 8-1mm, 15% regenerated corundum with a particle size of 8-1mm, 5% corundum aggregate with a particle size of 0-1mm, Kyanite with a particle size of 0-1mm is 5%, corundum fine powder with a particle size of ≤0.088mm is 4.9%, waste main channel material fine powder with a particle size of ≤0.088mm is 10%, silicon carbide with a particle size of ≤1mm is 5%, and silicon carbide with a particle size of ≤1mm 3% metal silicon, 1% asphalt powder, 6% phenolic resin, 0.1% curing agent urotropine, plus 1% ethylene glycol.

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Abstract

The invention discloses a regenerated ramming mass manufactured by waste main blast furnace trough castables. The ramming mass comprises the components with mass percents as follows: 55-65 of aggregates with granularity of 8-1mm, 3-10 of aggregates with granularity of 0-1mm, 3-10 of fine corundum powder with granularity less than or equal to 0.088mm, 10-20 of fine waste main trough castable powder with granularity less than or equal to 0.088mm, 3-10 of silicon carbide with granularity less than or equal to 1mm, 1-3 of metallic silicon with granularity less than or equal to 1mm, 1-5 of asphalt powder, 4-10 of phenolic resin and 0.1-1 of curing agent urotropin. The waste main trough castables adopted by the invention have large proportion, simple components and few impurities, are easy in molding and free of baking and feature good properties.

Description

technical field [0001] The invention relates to an unshaped refractory material, in particular to a regenerated ramming material produced by using waste blast furnace main channel material. Background technique [0002] Making recycled ramming material from waste blast furnace main channel material is a refractory material recycling technology, which can reduce product cost, increase the recycling degree of refractory material resources, and reduce resource waste. This aspect has been studied at home and abroad, but there are not many reports. "Sichuan Metallurgy" 2003 (2): 44-45, 54 pages "Development and Application of Blast Furnace Free-baking Iron Trough Material", which discloses the following content: Corundum, super bauxite, and SiC are the main raw materials for the production of non-baking Baked Tiegou ramming material, its formula is: 27% of super bauxite aggregate 5-8mm, 16.5% of 3-5mm; 12% of brown corundum of 1-3mm; 4.5% of 325 mesh SiC powder; 0-3mm Additive ...

Claims

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Application Information

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IPC IPC(8): C04B35/66B09B3/00
Inventor 徐国涛李淑忠张洪雷刘黎
Owner WUHAN IRON & STEEL (GROUP) CORP
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