High-nickel lining material for sintering furnace and preparation method of high-nickel lining material

A furnace lining material and sintering furnace technology, which is applied in the field of high-nickel sintering special furnace lining materials, can solve the problems that the sintering furnace cannot be reused, the service life of the sintering furnace is reduced, and the corrosion resistance is not good, and the cost is low. The effect of long life and high load soft performance

Inactive Publication Date: 2019-03-22
江苏前锦炉业设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many properties of most furnace lining refractory materials still cannot meet the continuous repeated use of sintering furnaces, that is, the furnace lining materials cannot be well corrosion-resistant, earthquake-resistant and due to repeated furnace charge replacement and multiple rapid cooling and rapid heating. Stress cracking or even falling off caused by overcooling and overheating greatly reduces the service life of the sintering furnace

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: high-nickel sintering furnace lining material, including raw materials of the following components: 16 parts of high-purity quartz, 9 parts of fused quartz, 23 parts of corundum, 29 parts of bauxite, 10 parts of spinel, 7 parts of magnesia, 5 parts of alumina, 3.6 parts of magnesium oxide, 2.8 parts of silicon carbide, and 3.2 parts of sintering agent.

[0016] The preparation of high-nickel sintering furnace lining materials includes the following steps: (1) Weighing each raw material high-purity quartz, fused quartz, corundum, bauxite, spinel, magnesia, alumina, magnesia, carbonized Silicon, mixed and stirred, stirred for 45min;

[0017] (2) Put the mixed material obtained by stirring into a pulverizer and pulverize until the particle diameter is 1800~3200 mesh;

[0018] (3) Add water with a weight of 3.5% of the mixture to the pulverized mixture;

[0019] (4) Add the sintering agent to the mixture after adding water, and ball mill and dry mix for 55 m...

Embodiment 2

[0022] Embodiment 2: high-nickel sintering furnace lining material, including raw materials of the following components: 20 parts of high-purity quartz, 12 parts of fused quartz, 19 parts of corundum, 26 parts of bauxite, 12 parts of spinel, 10 parts of magnesia, 7 parts of alumina, 2.7 parts of magnesium oxide, 3.6 parts of silicon carbide, and 2.7 parts of sintering agent.

[0023] The preparation of high-nickel sintering furnace lining materials includes the following steps: (1) Weighing each raw material high-purity quartz, fused quartz, corundum, bauxite, spinel, magnesia, alumina, magnesia, carbonized Silicon, mixed and stirred, stirred for 52min;

[0024] (2) Put the mixed material obtained by stirring into a pulverizer and pulverize until the particle diameter is 1800~3200 mesh;

[0025] (3) Add water with a weight of 2.7% of the mixture to the pulverized mixture;

[0026] (4) Add the sintering agent to the mixture after adding water, and ball mill and dry mix for 50...

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PUM

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Abstract

The invention discloses a high-nickel lining material for a sintering furnace. The high-nickel lining material is prepared from the following raw materials: 12 to 23 parts of high-purity quartz, 6 to15 parts of fused silica, 18 to 30 parts of corundum, 25 to 40 parts of bauxite, 7 to 16 parts of spinel, 5 to 13 parts of magnesite, 3 to 9 parts of alumina, 2 to 7 parts of magnesium oxide, 2 to 6 parts of silicon carbide and 1.5 to 4.2 parts of an agglutinant. The prepared refractory material has the advantages of high strength, high softness under load, chemical stability, erosion resistance,long service life, low cost, simple production process, as well as safety and convenience in use.

Description

technical field [0001] The invention belongs to the related technical field of sintering furnace manufacture, and in particular relates to a high-nickel sintering special furnace lining material. Background technique [0002] With the continuous development of modern industry, the technology of sintering furnace is also improving. One of the most important parameters is the life of the sintering furnace. In addition to the gradual rationalization of the structural parameters of the sintering furnace and the further optimization of the operating parameters, the progress of the lining materials and construction technology of the sintering furnace is also an important part that cannot be ignored. [0003] Lining refractories are an important part of the sintering furnace lining, and their durability will directly determine the service life of the blast furnace. However, many properties of most furnace lining refractory materials still cannot meet the continuous repeated use of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B35/622C04B35/626C04B35/64
CPCC04B35/14C04B35/622C04B35/62605C04B35/64C04B2235/3206C04B2235/3217C04B2235/3222C04B2235/3826
Inventor 刘俊崔伯龙吴国君周燕叶智王洪林
Owner 江苏前锦炉业设备有限公司
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