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A kind of coke oven ceramic hot wiping supplementary material and preparation method thereof

A technology of ceramics and filling material, which is applied in the field of ceramic patching material for hot repair of coke ovens and its preparation. It can solve the problems of insufficient combustion of materials, affecting normal production of coke ovens, and low welding repair efficiency, so as to meet continuous Production operations, faster overall stability, faster patching effects

Active Publication Date: 2020-07-17
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of hot repair is that welding repair equipment is needed, and too much material can not be fully burned, so the welding repair efficiency is low and the time is long, and the operation time of the severely damaged furnace head is more than 6 hours, which affects the coke oven. normal production

Method used

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  • A kind of coke oven ceramic hot wiping supplementary material and preparation method thereof
  • A kind of coke oven ceramic hot wiping supplementary material and preparation method thereof
  • A kind of coke oven ceramic hot wiping supplementary material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of coke oven ceramics hot-wiping supplementary material, its raw material formula is shown in Table 1:

[0035] Weigh various materials according to the proportions stated in Table 1, put the materials except asphalt into the mixer and mix for 5-6 minutes, then add the liquid asphalt heated to above 70°C to the above mixed materials and continue to mix and stir for 2 ~3 minutes. After mixing, apply the material on the wall to be repaired, and spread evenly and smoothly. Then spray the surface of the material with oxygen to help it burn. During the blowing process, the oxygen flow rate is from small to large, and it is enough to blow for 3 to 5 minutes. Patching done.

[0036] Its main physical and chemical indicators are as follows:

[0037]

Embodiment 2

[0039] A kind of coke oven ceramics hot-wiping supplementary material, its raw material formula is shown in Table 1:

[0040] The preparation of coke oven ceramic hot-wiping supplement and the method of using the supplement to repair the coke oven are the same as in Example 1, and its main physical and chemical indicators are as follows:

[0041]

Embodiment 3

[0043] A kind of coke oven ceramics hot-wiping supplementary material, its raw material formula is shown in Table 1:

[0044] The preparation of coke oven ceramic hot-wiping supplement and the method of using the supplement to repair the coke oven are the same as in Example 1, and its main physical and chemical indicators are as follows:

[0045]

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PUM

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Abstract

The invention discloses a coke oven ceramic hot smearing supplementary material and a preparation method thereof. The coke oven ceramic hot smearing supplementary material comprises 10-30% of calcinedquartz of which the granularity is 3-5mm, 15-30% of sillimanite of which the granularity is 3-5mm, 5-15% of zirconite of which the granularity is 1-3mm, 10-15% of titanium carbide of which the granularity is 0-3mm, 4-9% of metal aluminum powder of which the granularity is smaller than or equal to 50 mu m, 5-10% of metal silicon powder of which the granularity is smaller than or equal to 50 mu m,6-10% of alpha-Al2O3 micropowder of which the granularity is 180-mesh, 3-5% of asphalt, 1-3% of iron scale of which the granularity is less than or equal to 0.088 mm, 1-3% of Ca(OH)2 of which the granularity is 200 meshes and 2-4% of paper fiber. According to the coke oven ceramic hot smearing supplementary material, a use condition in a coke oven can be met, the coke oven ceramic hot smearing supplementary material is convenient in construction, no equipment is not required, the coke oven ceramic hot smearing supplementary material has the advantages of high repairing speed, high efficiency,short time and the like, and normal production of the coke oven is not affected. Meanwhile, the ceramic hot smearing supplementary material has higher strength and longer service life, and no new damage is caused to a wall body.

Description

technical field [0001] The invention belongs to the field of refractory materials for coke oven repair in the iron and steel industry, and in particular relates to a ceramic plastering material for hot repair of coke ovens and a preparation method thereof. Background technique [0002] Coke oven is a complex large-scale industrial furnace, and its construction investment accounts for about 20% of the total investment of the entire coking plant, and its service life directly affects the production cost and economic benefits of coking enterprises. The age of the coke oven is relatively long, generally about 30 years, and some even reach more than 40 years. However, during its long-term operation, due to the influence of factors such as temperature stress, physical and chemical effects, and mechanical impact, the furnace body will inevitably be damaged, mainly manifested as wall erosion, furnace head pitting, and over-the-top bricks. Cracks, etc., seriously affect the normal p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3208C04B2235/3217C04B2235/3248C04B2235/3272C04B2235/3418C04B2235/3427C04B2235/3843C04B2235/402C04B2235/428C04B2235/77C04B2235/96C04B2235/9607
Inventor 王长宝刘智伟亓海录王俊王小强张敬涛安增琴
Owner SHANDONG IRON & STEEL CO LTD
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