Production method of fused AZS hanging wall brick

A production method and technology of hanging wall bricks, which are applied in the field of refractory materials, can solve problems such as shrinkage cavities at necks, stress cracks of electro-fused AZS hanging wall bricks, etc., and achieve reduced processing losses, good brick regularity, and reduced model volume effect

Inactive Publication Date: 2012-06-06
郑州东方安彩耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the electric fusion AZS hanging wall brick is easy to produce stress cracks during molding, and the uneven shrinkage will cause shrinkage holes at the neck. A production method of the electric melting AZS hanging wall brick is provided

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  • Production method of fused AZS hanging wall brick
  • Production method of fused AZS hanging wall brick
  • Production method of fused AZS hanging wall brick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of production method of electrofusion AZS hanging wall brick, utilizes lost foam technology to produce, and its steps are as follows:

[0025] (1) The model is made of polystyrene foam, and the density of the model is 0.03g / cm 3 , compressive strength 15kg / cm 2 , the interior is a hollow structure with ribs;

[0026] (2) The model is filled with sand in a box. The size of the insulating sand box for casting is 1200mm×1200mm×1000mm, and 9 sets of models are placed in each box. The bottom of the sand mold is laid with insulating bricks to strengthen the heat preservation. After putting in dry quartz sand, shake it on the vibration platform. Place a square riser on the upper part of each model after scraping with a ruler, and seal the contact gap between the riser and the model with fine sand;

[0027] (3) Ingredients: The ingredients contain 30% synthetic fused AZS brick clinker, and the balance is fused cast zirconia corundum brick raw material; the synthetic fu...

Embodiment 2

[0031] A kind of production method of electrofusion AZS hanging wall brick, utilizes lost foam technology to produce, and its steps are as follows:

[0032] (1) The model is made of polystyrene foam, and the density of the model is 0.03g / cm 3 , compressive strength 10kg / cm 2 , the interior is a hollow structure with ribs;

[0033] (2) The model is filled with sand in a box. The size of the insulating sand box for casting is 1200mm×1200mm×1000mm, and 9 sets of models are placed in each box. The bottom of the sand mold is laid with insulating bricks to strengthen the heat preservation. After putting in dry quartz sand, shake it on the vibration platform. Place a square riser on the upper part of each model after scraping with a ruler, and seal the contact gap between the riser and the model with fine sand;

[0034] (3) Ingredients: The ingredients contain 20% synthetic fused AZS brick clinker, and the balance is fused cast zirconia corundum brick raw material; the synthetic fu...

Embodiment 3

[0038] A kind of production method of electrofusion AZS hanging wall brick, utilizes lost foam technology to produce, and its steps are as follows:

[0039] (1) The model is made of polystyrene foam, and the density of the model is 0.04g / cm 3 , compressive strength 15kg / cm 2 , the interior is a hollow structure with ribs;

[0040] (2) The model is filled with sand in a box. The size of the insulating sand box for casting is 1200mm×1200mm×1000mm, and 9 sets of models are placed in each box. The bottom of the sand mold is laid with insulating bricks to strengthen the heat preservation. After putting in dry quartz sand, shake it on the vibration platform. Place a square riser on the upper part of each model after scraping with a ruler, and seal the contact gap between the riser and the model with fine sand;

[0041] (3) Ingredients: The ingredients contain 50% synthetic fused AZS brick clinker, and the balance is fused cast zirconia corundum brick raw material; the synthetic fu...

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Abstract

The invention discloses a production method of a fused AZS (Al2O3-ZrO2-SiO2) hanging wall brick. By shifting a lost foam technology used for the metallurgy industry to the fusion-cast refractory industry, the invention realizes a production method of a fused AZS special-shaped product. The method comprises the steps of: (1) foam model making; (2) cartonning of the model and sand filling; (3) batching; (4) electric furnace casting; (5) insulation and annealing; and (6) cold working. The inside of the model is a ribbed hollow structure, which ensures the strength and dimension of the model and simultaneously reduces model volume, thus enhancing the casting effect. The fused AZS hanging wall brick produced in the invention is free of crack in the whole body, has regularity up to the standard requirement, and has a tolerance at the neck of -0.3-0.5mm, thus being in line with the profile requirement of mother brick equipment and acceptance criteria. Characterized by high internal densification degree, obviously reduced crack generation probability, good regularity, accurately controlled dimension, less unnecessary processing loss, reduced processing, cutting, polishing and production cost, and all physical and chemical indexes kept within a standard control scope, the fused AZS hanging wall brick produced in the invention can be applied in the glass industry.

Description

technical field [0001] The invention belongs to the category of refractory materials and relates to a production method of electro-fused AZS with finely controlled size. The products are mainly used in the L-shaped hanging wall of the front face of the float glass furnace. Background technique [0002] The L-shaped hanging wall on the front face is used to seal the flame space above the feeding port, and is one of the key equipment of the glass melting furnace. The refractory bricks are hung on the upper part of the feeding port through multiple groups of steel structure hanging wall hanging bodies, which have the comprehensive effect of blocking the flame, sealing the kiln body, and accelerating the pre-melting of batch materials. The hot surface in the nose area of ​​the hanging wall is a composite electric fused brick structure, which eliminates the pollution of the glass liquid by the refractory refractory material in the nose area, and improves the adaptability and ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 朱卫科郭栋梁闫建敏谢建雄
Owner 郑州东方安彩耐火材料有限公司
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