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Application of refractory glass YaoChi

Number of visits: Date:8/18/2016

  Glass YaoChi kiln refractory used generally divided into the following nine classes, including the wall brick, bottom brick, feeding pool, liquid flow hole brick, brick, furnace cooling pool and forming pool roof parapet walls and brick wall brick, front wall and beautiful case, small furnace, special parts with refractory bricks. Small make up for the 9 class for everyone to do a detailed instructions.

  (1) the wall brick

  Molten sodium calcium silicon material, boron pool kiln ideal zirconium brick wall material is fused corundum brick. Zr02 content 33% tilt pouring brick, gate, on the following. Molten alkali free or low alkali glass fiber due to heavy acid erosion, wall brick material appropriate chooses AZS brick or dense zircon brick, also can use the fused quartz brick.

  (2) bottom brick

  Bottom brick requirements can wear resistant and have integrity. Now USES the multi-layer composite bottom structure. Multilayer structure is usually the subject layer - clay brick build by laying bricks or stones under the thermal insulation layer. Clay bricks on top of the protective layer and wear-resisting layer. Protective layer of zircon sand ramming material or fused corundum ramming material. Wear-resisting layer on the protective layer, protect the ramming bottom, direct contact with the glass, commonly used have good corrosion resistance, abrasion resistance performance of fused AZS brick. The use effect of the composite bottom structure is: reduce the heat loss, prolong the life span of the bottom. In the melted glass containing heavy metals (such as lead glass) or erosion heavier glass (e.g., opal glass) in order to prevent leakage of material, can be above the protective layer, the wear-resisting layer of the original coupled with a layer of protective layer and wear-resisting layer. The original protection layer and wear-resisting layer is also known as paving layer, can be sintered AZS brick or zircon brick.

  (3) charging pool brick

  Brick and glass by powder feeding pool of erosion, material wear layer, the influence of flow scouring and flame, so the damage is more serious. Need high temperature wear resistance corrosion resistant material, commonly used no shrinkage cavity containing zrO2 41% zirconium fused corundum brick, brick and increase thick, strengthen air cooling. In addition to the corner brick, other parts of the common casting a 33 AzS brick are available. The lower feed liquid pool brick can consider to use pouring kaolin clay bricks.

  (4) the flow fluid hole brick

  Pool kiln shed the largest glass fluid velocity of the fluid inside the hole, and convection, so the wear serious, also accelerated erosion. Discharge hole cover plate brick, therefore, should use a 41 AZS brick without shrinkage cavity, liquid flow hole wall brick had better use the same material and plate brick, at least without shrinkage cavity brick should be used. Used when melted boron silicate glass fused silica brick.

  (5) cooling pool and pool forming brick

  Cooling, forming pool is already good glass melting, clarifying, has entered the late in the process of rong system. At this time, will not cause any defects to glass (including bubble, stripes, stone). Cooling pool need oxidation process in the production of a 33 AZS brick, high temperature, separating the glass and won't bring glass bubble. Forming pool (such as feeding way) should choose electric melting alpha beta Al2O3 bricks or fused alpha Al2O3 bricks.

  6 kiln top and breast wall of brick

  This part of the brick damage characteristics of erosion (mainly alkaline sulfate cohesion, to form honeycomb pitting) and burning. Requires the use of alkali at high temperature steam is very stable, and has high refractoriness under load and creep properties of the material. Can choose silica brick and high quality silica brick and fused AZS brick - 33.

  Before all landowners face wall brick walls and beautiful case

  This is melting of space before and after the two walls. They also have two damage characteristics of erosion and burning. In addition, the front wall by abrasion and erosion of the batch of overflow flame and flush, it is one of the weak parts of the tank furnace. Currently using a 33 fused AzS brick, also has the high quality silica brick and the sintered AzS brick composite used (e.g., l-shaped hanging wall). Front wall besides USES the high quality silica brick with air cooling is required.

  Today small furnace bricks

  Can be divided into the crater, small furnace parts such as neck, nozzle bricks to consider. Small furnace bricks required ability of high temperature, corrosion resistance, scouring resistance, also has certain thermal shock resistance. If the producer gas burning, heat load is small, can be used when the silica brick, and even kaolin clay bricks, if burning high calorific value of fuel, heat load big, self-closed brick, side of the crater of the crater wall brick, floor brick, oblique self-closed interlayer brick, tongue and nozzle electricity melt AZS brick - 33 brick, floor can also use the density of sintered corundum brick.

  Pet-name ruby special site selection of refractory material

  Tank furnace masonry on some special parts, such as bubble hole, kiln, the electrode hole, inspection, measurement, etc. They have special USES and damage characteristics of alone. Bubble hole brick will be affected by rapid circulation caused by bubbling flow of strong wear and erosion. Bubble hole brick inside and outside surface of the larger temperature difference will produce large mechanical stress, easy to cause crack damage. Brick kiln hom will also suffer severe damage heat flow. These two kinds of bricks can be produced by oxidation of no shrinkage cavity containing zirconium Zr02 41% of fused corundum brick. Electrode hole brick by intense erosion cycle flow around the electrode, also caused by large temperature difference in brick and electrode cooling, produce large mechanical stress, lead to a radial cracks around the hole brick. Reason for brick material corrosion resistance, abrasion resistance, but also has certain thermal shock resistance and high resistance. When select material, besides considering the electrical liquid glass and the conductivity of the electrode arrangement. General use oxidation production of no shrinkage away L containing zirconium Zr02 41% of fused corundum brick, thermal shock resistance of the material is bad, can consider to use fused quartz brick or calcining dense zircon brick. Measuring hole overflow, inspection hole brick by stove flame long-term washout, vulnerable to damage and crack, the common custom zirconium Zr02 containing 33% of fused corundum brick.

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