Environment-friendly functional anhydrous stemming and preparation method thereof

An anhydrous taphole clay and a functional technology, which is applied in the field of functional environmental protection anhydrous taphole clay and its preparation, and can solve the problems of small effect and the like

Inactive Publication Date: 2018-08-03
南京联合荣大工程材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the main function of general-purpose anhydrous taphole mud is to use (use for tapping) and protect (protect the furnace wall), and most of the anhydrous taphole mud has little effect on the protection.

Method used

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  • Environment-friendly functional anhydrous stemming and preparation method thereof

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Embodiment 1

[0028] The embodiment of the present invention provides a functional environment-friendly anhydrous tap clay, wherein the mass percentage of SiC in the silicon carbide is ≥80%, and the content of Al in the modified alumina powder is greater than or equal to 80%. 2 O 3 The mass percentage content is greater than or equal to 88%, the carbide mass percentage content in the carbide dust removal powder is greater than or equal to 92%, and the moisture content of the modified resin is less than 0.5%.

[0029] The distribution ratio of each group is as follows:

[0030] 20-30 parts by mass of corundum or bauxite, 5-10 parts by mass of corundum or bauxite dusting powder, 5-10 parts by mass of silicon carbide, 5-10 parts by mass of pyrophyllite, 5-10 parts by mass of modified alumina powder, carbide 5-8 parts by mass of dust removal powder, 1-3 parts by mass of phenolic resin powder, 0-20 parts by mass of ferrosilicon nitride, 5-15 parts by mass of soft clay, 3-7 parts by mass of kyan...

Embodiment 2

[0034] The embodiment of the present invention provides a functional environment-friendly anhydrous tap clay, wherein the mass percentage of SiC in the silicon carbide is ≥80%, and the content of Al in the modified alumina powder is greater than or equal to 80%. 2 O 3 The mass percentage content is greater than or equal to 88%, the carbide mass percentage content in the carbide dust removal powder is greater than or equal to 92%, and the moisture content of the modified resin is less than 0.5%.

[0035] The distribution ratio of each group is as follows:

[0036] 26 parts by mass of corundum or bauxite, 7 parts by mass of corundum or bauxite dust-removing powder, 5 parts by mass of silicon carbide, 7 parts by mass of pyrophyllite, 5 parts by mass of modified alumina powder, 5 parts by mass of carbide dust-removing powder, 2 parts by mass of phenolic resin parts by mass, 8 parts by mass of 200-mesh ferrosilicon nitride, 10 parts by mass of soft clay, 5 parts by mass of kyanite...

Embodiment 3

[0039] The embodiment of the present invention provides a functional environment-friendly anhydrous tap clay, wherein the mass percentage of SiC in the silicon carbide is ≥80%, and the content of Al in the modified alumina powder is greater than or equal to 80%. 2 O 3The mass percentage content is greater than or equal to 88%, the carbide mass percentage content in the carbide dust removal powder is greater than or equal to 92%, and the moisture content of the modified resin is less than 0.5%.

[0040] The distribution ratio of each group is as follows:

[0041] 25 parts by mass of corundum or bauxite, 5 parts by mass of corundum or bauxite dust-removing powder, 8 parts by mass of silicon carbide, 6 parts by mass of pyrophyllite, 6 parts by mass of modified alumina powder, 8 parts by mass of carbide dust-removing powder, 2 parts by mass of phenolic resin parts by mass, 15 parts by mass of 200-mesh ferrosilicon nitride, 5 parts by mass of soft clay, 3 parts by mass of kyanite,...

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Abstract

An embodiment of the invention provides environment-friendly functional anhydrous stemming and a preparation method thereof. The anhydrous stemming is prepared from specific components by mass as follows: 20-30 parts of corundum or alumina, 5-10 parts of corundum or alumina dusting powder, 5-10 parts of silicon carbide, 5-10 parts of pyrophyllite, 5-10 parts of modified alumina powder, 5-8 parts of carbide dusting powder, 1-3 parts of phenolic resin powder, 0-20 parts of ferro-silicon nitride, 5-15 parts of soft clay, 3-7 parts of kyanite, 3-15 parts of dry quenched coke, 0-5 parts of sericite, 5-15 parts of aluminum and titanium slag and 15-20 parts of modified resin. A taphole channel maintaining and repairing function is further developed besides the characteristics of traditional stemming, the anhydrous stemming is multifunctional, various recycled industrial materials are used, efficient use of material value is realized, and energy saving and environmental protection are realized.

Description

technical field [0001] The invention relates to the technical field of refractory material preparation, in particular to a functional environment-friendly anhydrous taphole clay and a preparation method thereof. Background technique [0002] Blast furnace ironmaking is the main smelting method of modern ironmaking. With the progress of social technology, blast furnace ironmaking tends to be large-scale and efficient. In order to pursue high efficiency and continuously improve the smelting intensity, the corresponding daily iron production of each blast furnace continues to increase. , the tap flow rate at the outflow channel of the molten iron will inevitably increase, and it will inevitably accelerate the dissolution rate of the anhydrous taphole mud that is blocked. It plays the role of protecting the furnace wall in the tap hole area (that is, forming a mud bag in the ring tap hole area inside the tap hole tunnel). [0003] In the prior art, the main functions of general...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/103
CPCC04B35/103C04B35/62204C04B2235/3463C04B2235/349C04B2235/3817C04B2235/3826C04B2235/3852C04B2235/422
Inventor 肖亮
Owner 南京联合荣大工程材料有限责任公司
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