Novel homogenized stemming

A technology of homogeneous material and clay, which is used in the field of refractory materials and new homogeneous material, can solve the problem of oxidation resistance and slag resistance, poor iron erosion resistance, poor compressive strength and flexural strength, and easy cracking. and other problems, to achieve the effects of improving slag erosion resistance and molten iron erosion resistance, high-temperature flexural strength, and high-normal temperature compressive strength

Inactive Publication Date: 2016-12-21
长兴云峰炉料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the function of blocking the tap hole and stabilizing the tap, taphole mud is also endowed with the function of protecting the hearth and prolonging the life of the side bricks at the bottom of the blast furnace. Cracks, poor resistance to slag iron erosion and other shortcomings make it difficult to meet the needs. Anhydrous tapped clay generally uses corundum, silicon carbide combined with silicon n

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A novel homogeneous gun clay of the present invention comprises the following components and the mass ratio of each component is: brown corundum with a particle size of 1-3 mm: 18 parts; brown corundum with a particle size of 3-5 mm: 10 parts; Brown corundum with a particle size of 5-8mm: 12 parts, brown corundum with a particle size of less than 1mm: 18 parts; bauxite homogeneous material: 20 parts, silicon carbide micropowder: 10 parts; clay: 15 parts; Al 4 SiC 4 Powder: 2 parts; ferrosilicon nitride: 5 parts; sericite: 5 parts; coke powder: 8 parts, environmental protection composite binder: 10 parts.

Embodiment 2

[0016] A novel homogeneous gun clay of the present invention comprises the following components and the mass ratio of each component is: 19 parts of brown corundum with a particle size of 1 to 3 mm; 12 parts of brown corundum with a particle size of 3 to 5 mm; Brown corundum with a particle size of 5-8mm: 13 parts, brown corundum with a particle size of less than 1mm: 19 parts; bauxite homogeneous material: 22 parts, silicon carbide micropowder: 15 parts; clay: 17 parts; Al 4 SiC 4 Powder: 3 parts; ferrosilicon nitride: 7 parts; sericite: 7 parts; coke powder: 12 parts, environmental protection composite binder: 15 parts.

Embodiment 3

[0018] A novel homogeneous gun clay of the present invention comprises the following components and the mass ratio of each component is: brown corundum with a particle size of 1-3 mm: 20 parts; brown corundum with a particle size of 3-5 mm: 13 parts; Brown corundum with a particle size of 5-8mm: 15 parts, brown corundum with a particle size of less than 1mm: 22 parts; bauxite homogeneous material: 25 parts, silicon carbide micropowder: 20 parts; clay: 20 parts; Al 4 SiC 4 Powder: 5 parts; ferrosilicon nitride: 10 parts; sericite: 10 parts; coke powder: 15 parts, environmental protection composite binder: 25 parts.

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Abstract

The invention discloses a novel homogenized stemming, which comprises the following components by mass ratio: 18-20 parts of brown aluminum oxide with a particle size of 1-3mm; 10-13 parts of brown aluminum oxide with a particle size of 3-5mm; 12-15 parts of brown aluminum oxide with a particle size of 5-8mm; 18-22 parts of brown aluminum oxide with a particle size of less than 1mm; 20-25 parts of bauxite homogenized grogs; 10-20 parts of silicon carbide micro-powder; 15-20 parts of clay; 2-5 parts of Al4SiC4 powder; 5-10 parts of ferro-silicon nitride; 5-10 parts of sericite; 8-15 parts of coke powder; and 10-25 parts of an environment-friendly composite binder. Compared with the prior art, the novel homogenized stemming provided by the invention has high normal temperature compressive strength and high temperature bending strength, also has more stable performance, and improves the slag corrosion resistance and molten iron scouring resistance.

Description

【Technical field】 [0001] The invention relates to the technical field of refractory materials, in particular to the technical field of a novel homogeneous blast clay. 【Background technique】 [0002] Large-scale blast furnaces in my country generally have one accidental slag outlet and 1 to 4 tapholes, and the amount of slag and iron discharged from the tapholes is large every day. In addition to the function of blocking the tap hole and stabilizing the tap, taphole mud is also endowed with the function of protecting the hearth and prolonging the life of the side bricks at the bottom of the blast furnace. Cracks, poor resistance to slag iron erosion and other shortcomings make it difficult to meet the needs. Anhydrous tapped clay generally uses corundum, silicon carbide combined with silicon nitride, coke powder, combined clay, etc. Anthracene oil, washing oil or tar is used as a binding agent, and the Al 2 o 3 The content is about 30%, the bulk density is about 1.8g / cm3, ...

Claims

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Application Information

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IPC IPC(8): C04B35/103
CPCC04B35/103C04B2235/3217C04B2235/3481C04B2235/349C04B2235/3817C04B2235/3852C04B2235/422C04B2235/5427
Inventor 佘云锋佘成其
Owner 长兴云峰炉料有限公司
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