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Andalusite and cordierite refractory material for glass kiln and product thereof

A technology of andalusite cordierite and refractory materials, which is applied in the field of refractory materials and can solve problems such as thermal shock resistance of damaged materials

Active Publication Date: 2014-10-08
RUITAI MATERIALS TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, although the complicated process is avoided, the cost becomes acceptable, but the thermal shock resistance of the material is greatly compromised

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Use 30% of 3-1mm mullite, 15% of 3-1mm andalusite, 20% of 1-0.088mm andalusite, 21% of <0.088mm andalusite, 2% of magnesia powder, 5% of alumina powder, and 7% of silica fume % ratio, plus 0.05% of the third-generation water reducer and 6% of water, to obtain a slurry with good fluidity. After forming, the slurry is condensed in 1 hour, solidified in 2 hours, demolded after 24 hours of curing, dried at 60°C for 24 hours, and then heat-treated at 1380°C for 6 hours to obtain a regular shape with a room temperature flexural strength of 15MPa and pressure resistance. The material with a strength of 55MPa, a load softening temperature of 1480°C, and 1100°C water cooling for five times with a flexural strength retention rate of ≥50% can be processed to produce products for glass kilns.

Embodiment 2

[0012] Using 3-1mm andalusite 45%, 1-0.088mm andalusite 20%, <0.088mm andalusite 21%, magnesia micropowder 2%, alumina micropowder 5%, silica fume 7%, plus the third generation Add 0.05% water reducer and 6% water to obtain a slurry with good fluidity. After forming, the slurry is condensed in 1 hour, solidified in 2 hours, demolded after 24 hours of curing, dried at 60°C×24H, and then heat-treated at 1350°C×6 hours to obtain a regular shape, and the room temperature flexural strength is 14MPa, and the compressive strength is 14MPa. A material with a strength of 50MPa, a softening temperature under load of 1470°C, and 5 times of water cooling at 1100°C with a flexural strength retention rate of ≥80%. The invention has the advantages of simple process and convenient manufacture, and the obtained product has beautiful appearance and excellent physical properties, and the invention achieves the purpose.

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PUM

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Abstract

The invention relates to an andalusite and cordierite refractory material for a glass kiln and a product thereof. The formula of the material comprises the following raw materials: 0-50% of andalusite which is 3-1mm, 15-25% of andalusite which is 1-0.088mm, 15-28% of andalusite which is smaller than 0.088mm, 0-50% of mullite which is 3-1mm, 0-50% of flint clay which is 3-1mm, 0-10% of synthetic cordierite which is smaller than 0.088mm, 1-3% of magnesia powder, 2-8% of alumina micro powder, 3-10% of silica fume, 0.01-0.1% of third generation of extra water reducer and 4-8% of extra water. The production method of the product disclosed by the invention comprises the following steps: weighing the raw materials in the ratio; preparing a green body by mixing and forming, placing the green body for 12-24 hours and demolding; conserving the green body at normal temperature for 1-3 days; drying the green body at 40-60 DEG C for 1-2 days, and sintering the green body at 1250-1380 DEG C; preparing the cast andalusite-cordierite refractory material product for the glass kiln after surface treatment and inspection. The andalusite and cordierite refractory material has good high temperature resistance, thermal shock resistance and anti-erosion function, and is applicable to application as the refractory material for the glass kiln instead of sillimanite, for example, tin bath head cover tiles of a floating glass production line, and equipment bricks of daily or special channels for the glass kiln, feeders, tube drawing machines and the like.

Description

technical field [0001] The invention is a refractory material mainly composed of andalusite. At room temperature, the material is MgO-SiO 2 -H 2 Combination of O-based materials; after firing, the magnesia bonded phase forms cordierite, and the andalusite aggregate and powder form mullite-high silica glass composite material, so the composite material has good high temperature resistance, thermal shock resistance, and Erosion function, suitable for replacing sillimanite as a refractory material for the discharge part of the glass kiln. For example, tin bath top cover bricks for float glass production line, daily and special glass kiln forehearth, feeder, pipe drawing machine and other equipment bricks. Background technique [0002] At present, the top cover brick of the tin tank of the float glass kiln, the forehearth brick, the spout, the rotating pipe, the material basin, the material bowl, the mixing slurry, the punch, the material cylinder, the clinker brick, the gate...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 王杰曾刘锡俊魏瀚叶亚红陈雪峰王俊涛周严敦徐如林胡建辉
Owner RUITAI MATERIALS TECHNOLOGY CO LTD
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