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Fused quartziferous cast glazed tile for coke oven and preparation method thereof

A technology of fused quartz and quartz, which is applied in the field of refractory materials, can solve the problems of mechanical damage, reduction of comprehensive physical properties, easy penetration of harmful substances, etc., and achieve the effect of eliminating physical labor and reducing the surface temperature of the furnace door

Active Publication Date: 2013-10-16
宜兴市丁山耐火器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cordierite lining bricks have excellent thermal shock stability and meet the thermal shock performance requirements of coke oven doors. However, harmful substances can easily penetrate into the interior of the bricks, reducing the overall physical properties of the bricks. The cleaning of the carbon deposit layer will cause damage to the bricks. Due to mechanical damage, the service life of cordierite lining bricks is generally 1 to 3 years

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Preparation of glaze water: get 30% spodumene (unit is percentage by weight, the same below), 20% soft clay, 20% potassium feldspar, 14.5% alumina, 15% quartz and 0.5% The yellow dextrin, then add the water of 35% of the above-mentioned substance quality and mix, ball mill for 4h, set aside;

[0026] (2) Preparation of blank: take 25% of 10-1μm fused silica, 5% of 1-0μm fused silica, 25% of 10-1μm clay clinker, 10% of 1-0μm clay clinker, 11% of Bauxite clinker, 10% calcium aluminate cement CA-80, 6% silicon micropowder and 8% alumina micropowder, stirred for 3 minutes, then added water with 5% of the total mass of the above substances and continued to stir for 3 minutes, and the resulting mixed material Pour it into the mold, vibrate and form it under vacuum, maintain it in the mold for 12 hours, and cure it for 3 days after demoulding, and continue bisque firing at 500°C for 72 hours to obtain the blank;

[0027] (3) Apply glaze water on the blank so that the glaz...

Embodiment 2

[0029] (1) Preparation of glaze water: get 35% spodumene (unit is percentage by weight, the same below), 18% soft clay, 16% potassium feldspar, 14% alumina, 14.4% quartz and 0.6% sodium carboxymethylcellulose, then add 40% water of the above-mentioned substance quality and mix, ball mill for 2h, and set aside;

[0030] (2) Preparation of blank: take 29% of 10-1μm fused silica, 8% of 1-0μm fused silica, 20% of 10-1μm clay clinker, 8% of 1-0μm clay clinker, 10% of Bauxite clinker, 15% calcium aluminate cement CA-80, 3% silica micropowder and 7% alumina micropowder, stirred for 4 minutes, then added water with 7% of the total mass of the above substances and continued to stir for 4 minutes, and the resulting mixed material Pour into the mold, vibrate and shape in a vacuum state, maintain in the mold for 12 hours, cure for 4 days after demoulding, and continue bisque firing at 1000°C for 24 hours to obtain the blank;

[0031] (3) Apply glaze water on the blank so that the glaze w...

Embodiment 3

[0033] (1) Preparation of glaze water: get 40% spodumene (unit is percentage by weight, the same below), 20% soft clay, 19.3% potassium feldspar, 5% alumina, 15% quartz and 0.7% sodium carboxymethyl cellulose, then add 45% water of the above-mentioned material quality and mix, ball mill for 1h, and set aside;

[0034] (2) Preparation of blank: take 33% of 10-1μm fused silica, 7% of 1-0μm fused silica, 20% of 10-1μm clay clinker, 9% of 1-0μm clay clinker, 10% alum Soil clinker, 12% calcium aluminate cement CA-80, 6% silicon micropowder and 3% alumina micropowder, stir for 5 minutes, then add water with 6% of the total mass of the above substances and continue stirring for 4 minutes, pour the resulting mixture Put it into the mould, vibrate molding under the vacuum state, curing in the mould for 24 hours, curing for 5 days after demoulding, and continue bisque firing at 800°C for 36 hours to obtain the blank;

[0035] (3) Apply glaze water on the blank so that the glaze water c...

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Abstract

The invention discloses a fused quartziferous cast glazed tile for a coke oven. The glazed tile comprises glazed water and a cast prefabricated member, wherein the glazed water comprises following components in percentage by weight: 30-50% of spodumene with a particle size of 10 to 0 micron, 5-20% of soft clay with the particle size of 10 to 0 micron, 10-20% of potash feldspar with the particle size of 10 to 0 micron, 5-15% of aluminum oxide with the particle size of 5 to 0 micron, 3-15% of quartz with the particle size of 10 to 0 micron, and 0.5-1% of organic plasticizer. The cast prefabricated member includes the following ingredients in percentage by weight: 30-50% of fused quartz, 25-35% of chamotte, 10-15% of alumina clinker, 10-15% of binding agent, 3-6% of silicon micropowder and 3-8% of aluminum oxide micropowder. Meanwhile, the invention further discloses a preparation method of the glazed tile. The glazed tile provided by the invention has excellent thermal shock stability and thermal impact resistance in coke oven production process; the glazed tile has low thermal conductivity and high strength, and can effectively reduce the external temperature of the furnace gate; and the production process does not have pollution.

Description

technical field [0001] The invention relates to a refractory material, in particular to a fused silica cast glazed brick for coke ovens and a preparation method thereof. Background technique [0002] Coke oven door lining bricks have been damaged by thermal shock, chemical corrosion and mechanical damage for a long time, and their service life is short. Coke ovens require furnace door lining bricks to have high thermal shock stability and resistance to penetration corrosion and carbon deposition. At present, most of the furnace door lining bricks used in my country are mainly cordierite bricks, pearl bricks, and clay bricks, and the surface is basically not glazed. Among them, cordierite bricks have the longest service life. Cordierite lining bricks have excellent thermal shock stability and meet the thermal shock performance requirements of coke oven doors. However, harmful substances can easily penetrate into the interior of the bricks, reducing the overall physical prop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B41/86
Inventor 张文辉董良军程平平邵开君史建洪
Owner 宜兴市丁山耐火器材有限公司
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