High-performance prefabricated part for slag blocking wall of main runner of blast furnace, and preparation method and construction method thereof

A construction method and high-performance technology, applied in the direction of manufacturing tools, ceramic molding machines, discharge devices, etc., can solve problems such as difficult operation, limited application range, complex structure, etc., to avoid oxidation, improve the life of the retaining wall, and cost-effective Effect

Pending Publication Date: 2020-05-08
BEIJING RUIPU TONGCHUANG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can use the upper movable block as the working layer to a certain extent, the structure is relatively complicated, and it is not easy to operate under the working condition of 1450 ° C, and the application range is limited

Method used

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  • High-performance prefabricated part for slag blocking wall of main runner of blast furnace, and preparation method and construction method thereof
  • High-performance prefabricated part for slag blocking wall of main runner of blast furnace, and preparation method and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] See Table 1 for the raw material ratio of prefabricated parts for high-performance blast furnace main ditch slag retaining wall.

[0042] A. Put fused white corundum, silicon carbide, titanium dioxide, manganese-aluminum spinel, carbon-containing resin powder, metal silicon powder, borax, and wetting agent into a mixer, and mix evenly to obtain a mixture a;

[0043] Among them, Al in fused white corundum 2 o 3 The weight content is 98%, and the bulk density is 3.6g / cm 3 , the gradation of fused white corundum is: 8mm-5mm 20kg, 5mm-3mm 15kg, 3mm-1mm 5kg; the weight content of SiC in silicon carbide is 97%, and the gradation of silicon carbide is: 3mm-1mm 10kg, 1- 0mm 20kg, 0.074-0mm 14.2kg; TiO in titanium dioxide 2 The weight content is 97%, the particle size is less than or equal to 0.074mm; MnAl in manganese aluminum spinel 2 o 4 The weight content of carbon-containing resin powder is 90%, the particle size is less than or equal to 0.074mm; carbon-containing resi...

Embodiment 2

[0048] See Table 1 for the raw material ratio of prefabricated parts for high-performance blast furnace main ditch slag retaining wall.

[0049] A. Put fused white corundum, silicon carbide, titanium dioxide, manganese-aluminum spinel, carbon-containing resin powder, metal silicon powder, borax, and wetting agent into a mixer, and mix evenly to obtain a mixture a;

[0050] Among them, Al in fused white corundum 2 o 3 The weight content is 98%, and the bulk density is 3.6g / cm 3 , the gradation of fused white corundum is: 8mm-5mm 20kg, 5mm-3mm 15kg, 3mm-1mm 5kg; the weight content of SiC in silicon carbide is 97%, and the gradation of silicon carbide is: 3mm-1mm 10kg, 1- 0mm 18kg, 0.074-0mm 12kg; TiO in titanium dioxide 2 The weight content is 97%, the particle size is less than or equal to 0.074mm; MnAl in manganese aluminum spinel 2 o 4 The weight content of carbon-containing resin powder is 90%, the particle size is less than or equal to 0.074mm; carbon-containing resin ...

Embodiment 3

[0055] See Table 1 for the raw material ratio of prefabricated parts for high-performance blast furnace main ditch slag retaining wall.

[0056] A. Put fused white corundum, silicon carbide, titanium dioxide, manganese-aluminum spinel, carbon-containing resin powder, metal silicon powder, borax, and wetting agent into a mixer, and mix evenly to obtain a mixture a;

[0057] Among them, Al in fused white corundum 2 o 3 The weight content is 98%, and the bulk density is 3.6g / cm 3 , the gradation of fused white corundum is: 8mm-5mm 18kg, 5mm-3mm 15kg, 3mm-1mm 5kg; the weight content of SiC in silicon carbide is 97%, and the gradation of silicon carbide is: 3mm-1mm 10kg, 1- 0mm 16kg, 0.074-0mm 10.6kg; TiO in titanium dioxide 2 The weight content is 97%, the particle size is less than or equal to 0.074mm; MnAl in manganese aluminum spinel 2 o 4 The weight content of carbon-containing resin powder is 90%, the particle size is less than or equal to 0.074mm; carbon-containing resi...

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Abstract

The invention relates to a high-performance prefabricated part for a slag blocking wall of a main runner of a blast furnace, and a preparation method and a construction method thereof, belonging to the technical field of blast furnace ironmaking. The raw materials of the prefabricated part comprise fused white corundum, silicon carbide, titanium dioxide, manganese aluminate spinel, carbon-containing resin powder, metal silicon powder, borax, a wetting agent and phenolic resin; and semi-dry mechanical pressing forming is adopted for preparation of the prefabricated part. According to the invention, preparation is easy and convenient; and the prefabricated part has high breaking strength, compressive strength, scouring resistance and abrasion resistance, prolongs the service life of the slagblocking wall, and meets market requirements.

Description

technical field [0001] The invention relates to the technical field of blast furnace ironmaking, more specifically, it relates to a prefabricated part of a high-performance blast furnace main ditch slag retaining wall, a preparation method and a construction method. Background technique [0002] The slag retaining wall of the main ditch of the blast furnace is an important part for separating slag and iron at the back end of the main ditch. Due to the difference in the specific gravity of slag and iron, the slag and iron are separated in the main ditch, and the slag liquid flows out through the slag ditch at the front end of the slag retaining wall on the upper layer. The liquid flows out through the passage hole under the slag retaining wall in the lower layer. At present, with the progress of the main ditch material and construction technology, after the main ditch is poured once in a cycle, the service life of the main ditch of the blast furnace continues to increase. Beca...

Claims

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Application Information

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IPC IPC(8): C04B35/567C04B35/103C04B35/622C04B35/634B28B3/00C21B7/14
CPCC04B35/565C04B35/66C04B35/103C04B35/622C04B35/634C04B35/63476B28B3/00C21B7/14C04B2235/3217C04B2235/3232C04B2235/3222C04B2235/3262C04B2235/428C04B2235/3409C04B2235/3201C04B2235/3826C04B2235/5427C04B2235/5436C04B2235/9607C04B2235/9669C04B2235/9676
Inventor 杨林李卫华罗燕宇张君博王小军王少峰姜乐杨燮遥夏崇伟
Owner BEIJING RUIPU TONGCHUANG TECH DEV
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