What’s the anti-skinning castable

Anti-skinning castable is made by adding silicon carbide aggregates and powder to the low-cement castable, then adding high-efficiency water reducing agent and ultrafine powder, and stirring with pure calcium aluminate cement as the binder.

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The new definitions of refractory materials in different country

According to international standards, refractory materials are defined as non-metallic materials and products whose chemical and physical properties allow their use in high-temperature environments (excluding those containing a certain proportion of metals).

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The performance between low porosity clay brick and clay brick

Clay brick is made by clay clinker and soft clay as a bond aluminum content of 30-48% stereotyped refractory. The particle composition of clay brick is generally more coarse and fine particles, and less medium particles, which ensures the strength of the brick and improves the thermal shock stability.

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Service cycle of resistant materials for zinc smelting rotary kiln

Under normal circumstances, the calcination belt uses bricks with a body density of more than 2.9, the transition belt uses 2.6 body density of ordinary phosphate bricks or high aluminum bricks, there are also the use of magnesia-aluminum-chromium bricks, but because magnesia-aluminum-chromium bricks are expensive, the selection of manufacturers are not many, more than 95% of the use of special phosphate bricks. However, if from the use cycle, it has been a question that can not be answered precisely, because the raw materials used in zinc smelting are different, resulting in the use cycle of the lining material can not be determined.

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The differences between Shanxi bauxite and Henan bauxite

Bauxite is playing a crucial role as an important raw material in the refractory materials industry, especially in silicon-aluminum refractory materials. In China, bauxite is mainly distributed in Shanxi, Henan, Guizhou and other places. Shanxi and Henan together account for the majority of bauxite reserves.

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What kind of refractory castable is used for furnace lining at 1300℃

Before choosing, we must firstly consider the fuel used by the furnace, the raw material medium of the fired product, and the corrosiveness degree and nature of the raw material composition, is it acidic or alkaline? In addition, there are external factors to consider the furnace type, whether there is wind speed, mechanical stress caused by erosion wear, and then the combustion mode.

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Light weight acid-proof castable use for chimney lining

The chimney lining is made of light weight acid-resistant castable, which has strong air tightness, and does not require light and heavy layers. The two-layer material construction reduces the thickness of the lining and improves the thermal insulation performance.

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What kind of furnace lining is suitable to use phosphate brick?

Phosphate brick is most suitable for use in white ash kiln, zinc kiln lining, can be used for high temperature zone and transition zone. If it is a white-ash rotary kiln, the entire kiln lining can use phosphate bricks, but it is the use of high density bricks in the high temperature zone, and the use of low density bricks in the transition zone.

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The difference between Corundum brick and chrome corundum brick

The corundum brick is a kind of refractory brick with alumina content greater than 85%, corundum brick is divided into sintered and fused corundum brick, and chrome corundum refractory brick is added to corundum Cr2O3, after high temperature molding, high temperature sintering of high-grade refractory brick, chrome corundum refractory brick is also divided into fused cast chromium, sintered chrome corundum refractory brick.

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Characteristics and functions of refractory ramming materials

The advantage of refractory ramming material is that it can be pounded on the spot in the form of ramming, the equipment uses air pick or mechanical ramming, the amount of material is less or the use of unimportant parts, and it can also be tied by hand. However, the disadvantage of refractory ramming material is that the construction speed is faster than that of refractory castable, and the labor intensity is greater than that of castable.

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Dry barrier refractory for electrolytic aluminum

The process of dry barrier refractory is made of clay clinker as refractory aggregate, and the third grade high aluminum clinker is processed into different granular aggregate and powder, which is processed by micro-powder technology and bonding agent.

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The difference between high alumina brick and anti – spalling high alumina brick

High alumina brick and anti-spalling high alumina brick compared, anti-spalling high alumina brick is made of high bauxite and zircon as raw materials, high strength, chemical corrosion resistance, low thermal expansion coefficient, low thermal conductivity. And high alumina brick is made of high bauxite as raw material, chemical corrosion resistance is not as good as anti-spalling high alumina brick, mainly anti-spalling high alumina brick than high alumina brick thermal shock stability.

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