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A kind of blast furnace seam filling material and preparation method thereof

A technology for filling joints and blast furnaces, which is applied in the field of metallurgical refractories, can solve problems such as unfavorable blast furnace production and longevity, easy formation of voids, redness of furnace shells, etc., and achieves significant blocking effect, increase production, and prevent gas leakage.

Active Publication Date: 2022-08-09
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used grouting materials have defects such as low strength and excessive shrinkage during use, and voids are easily formed after grouting, which again leads to a series of problems such as redness of the furnace shell, which is not conducive to the smooth production and longevity of the blast furnace

Method used

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  • A kind of blast furnace seam filling material and preparation method thereof
  • A kind of blast furnace seam filling material and preparation method thereof
  • A kind of blast furnace seam filling material and preparation method thereof

Examples

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Embodiment Construction

[0047] In order to make the purpose, technical solution and advantages of the present invention more clear and clear, the following reference to the attached figures and implementing examples, further explaining the present invention.

[0048] Examples of the present invention provide a blast furnace irrigation material, according to the quality percentage of the quality, the composition of the sewing of the blast furnace includes: 35 % to 56 % of alum soil clinker, 0 % to 12 % silicon carbide fine powder, 0 % 0 % ~ 18 % carbon material, 4 % to 8 % expansion agent, 5 % to 8 % sintering agent, 0 % to 3 % antioxidant, 21.6 % to 27 % binding agent, 0.6 % to 1.5 % Hardener.

[0049] In the embodiments of the present invention, the percentage of each component is the percentage of quality, that is, the quality ratio, and the percentage of the explanations of the embodiments of the present invention represents the quality percentage.

[0050] In the embodiment of the present invention, ...

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Abstract

The invention discloses a blast furnace seam filling material and a preparation method thereof. According to the mass percentage, the blast furnace seam filling material comprises: bauxite clinker accounting for 35% to 56%, and bauxite clinker accounting for 0% to 12% SiC fine powder, carbonaceous material accounting for 0%-18%, expansion agent accounting for 4%-8%, sintering agent accounting for 5%-8%, and 0%-3% % antioxidant, 21.6% to 27% binder, and 0.6% to 1.5% curing agent. The blast furnace seam filling material of the invention is filled in the gaps from the blast furnace bollard to the lower part of the furnace shaft when in use, the construction is simple, the plugging effect is remarkable, the life of the blast furnace is prolonged, the output is increased in the iron and steel production, and the cost is obvious. Benefit, its use prospect is very broad.

Description

Technical field [0001] The present invention involves the field of metallurgical refractory material technology, and specially involves a kind of materials and preparation methods for repairing gaps during the use of a blast furnace. It also involves an irrigation and preparation method used by a blast furnace belly to the lower part of the furnace. Background technique [0002] During the use of blast furnaces, especially in the middle and late stages of the furnace, due to the long -term mechanical scouring, thermal shock and chemical erosion of the furnace body, there are some gaps in different damage. [0003] When the temperature of the lining of the blast furnace and the surface temperature of the furnace shell rises, it is indicated that the gap between the refractory material and the metal parts caused by the erosion, the gap between the refractory material and the refractory material, the cooling wall building and the furnace shell between the cooler and refractory mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/101
CPCC04B35/101C04B2235/3826C04B2235/425C04B2235/3418C04B2235/3463C04B2235/428Y02P10/20
Inventor 范咏莲张秀华田志宏杨竞钱雨田晶晶
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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