The Characteristics And Advantages Of Ceramic Fiber Board

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High temperature ceramic fiber board has the charateristics of hard texture, good toughness and strength and excellent resistance to wind erosion. Heating is not inflated, light weight, easy construction, can be any shear bending, is the ideal energy-saving material of kiln, pipes and other insulation equipment.
1. High compressive strength, long service life.
2. Low heat capacity, low thermal conductivity.
3. Non-brittle material, good toughness;
4. Precise size, good flatness. 
5. Easy to install, easy to construct.
6. Excellent anti-wind erosion performance.
7. Continuous production, uniform fiber distribution, stable performance.

High temperature ceramic fiber board has the charateristics of hard texture, good toughness and strength and excellent resistance to wind erosion. Heating is not inflated, light weight, easy construction, can be any shear bending, is the ideal energy-saving material of kiln, pipes and other insulation equipment.

1. High compressive strength, long service life.

2. Low heat capacity, low thermal conductivity.

3. Non-brittle material, good toughness;

4. Precise size, good flatness. 

5. Easy to install, easy to construct.

6. Excellent anti-wind erosion performance.

7. Continuous production, uniform fiber distribution, stable performance.

 

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The Drying Technology Of Ceramic Fiber Board

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Ceramic fiber board, because of its poor thermal conductivity, to take the traditional hot air drying time is very long, and the energy consumption is too large, drying uniformity is poorer, and take microwave drying technology is to bypass the poor heat transfer performance problems, improve the production efficiency, in line with modern industrial production and efficient energy saving and environmental protection requirements, to solve the problems of the traditional ceramic fiber board drying technology with a long time, slower cash flow, and uneven drying, the specific characteristics are:
1. Drying process is quickly, a few minutes to complete the depth of dry, can make the final water content reach up to more than one thousandth.
2. Dry is uniform,  the quality of dry product is good.
3. High efficiency and energy saving, safety and environmental protection.
4. Thermal inertia is small, easy to control the immediate heating.
Ceramic fiber board, because of its poor thermal conductivity, to take the traditional hot air drying time is very long, and the energy consumption is too large, drying uniformity is poorer, and take microwave drying technology is to bypass the poor heat transfer performance problems, improve the production efficiency, in line with modern industrial production and efficient energy saving and environmental protection requirements, to solve the problems of the traditional ceramic fiber board drying technology with a long time, slower cash flow, and uneven drying, the specific characteristics are:
1. Drying process is quickly, a few minutes to complete the depth of dry, can make the final water content reach up to more than one thousandth.
2. Dry is uniform,  the quality of dry product is good.
3. High efficiency and energy saving, safety and environmental protection.
4. Thermal inertia is small, easy to control the immediate heating.

 

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Application Of Ceramic Fiber Module In Heating Furnace

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Heating furnace is the main heating and energy consumption device, with the constant expansion of  various types of device scale, heating furnace fuel consumption is also more and more, its comprehensive project cost is also rising, affecting the economic efficiency of enterprises.
Under the guidance of the national energy conservation and environmental protection policy, the thermal efficiency and environmental protection requirements of the heating furnace device are getting higher and higher. Reasonable application of lining can effectively improve the thermal efficiency of the furnace and insulation properties, but also reduce the overall investment. In recent years, some petrochemical enterprises design, transformation and construction of the furnace using ceramic fiber lining to achieve the desired effect, which ceramic fiber module lining insulation effect, the use of reliability and economy is most prominent, its comprehensive performance to overcome the disadvantages of other types of lining.
Ceramic fiber module with the excellent performances of small capacity, low heat storage capacity, quenching and emergency heat does not crack, good sound absorption performance and does not require oven, etc, to overcome some of the inherent shortcomings of other insulation materials, can effectively ensure long-term efficient heating furnace performance , effectively improve the thermal efficiency of the furnace.

Heating furnace is the main heating and energy consumption device, with the constant expansion of  various types of device scale, heating furnace fuel consumption is also more and more, its comprehensive project cost is also rising, affecting the economic efficiency of enterprises.

Under the guidance of the national energy conservation and environmental protection policy, the thermal efficiency and environmental protection requirements of the heating furnace device are getting higher and higher. Reasonable application of lining can effectively improve the thermal efficiency of the furnace and insulation properties, but also reduce the overall investment. In recent years, some petrochemical enterprises design, transformation and construction of the furnace using ceramic fiber lining to achieve the desired effect, which ceramic fiber module lining insulation effect, the use of reliability and economy is most prominent, its comprehensive performance to overcome the disadvantages of other types of lining.

Ceramic fiber module with the excellent performances of small capacity, low heat storage capacity, quenching and emergency heat does not crack, good sound absorption performance and does not require oven, etc, to overcome some of the inherent shortcomings of other insulation materials, can effectively ensure long-term efficient heating furnace performance , effectively improve the thermal efficiency of the furnace.

 

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The Wear Resistance Test Analysis Of Corundum Brick

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Corundum brick is industrial alumina as the main raw material, including alumina content> 90%, belongs to high alumina content of refractory brick. Corundum brick's physical and chemical property is very good, today we talk about the wear resistance test analysis of corundum brick.
Wear resistance is the refractory material resistance to hard material friction, impact, grinding capacity, so the wear resistance is the higer,  the performance of refractory material is the better, we can analyze practicability in wear erosion environment by wear resistance of corundum brick.
The wear resistance of corundum brick depends on the composition of the minerals, the structure and the density of the particles. Therefore, when producing, the quality of the aggregate, the composition of the mud and the degree of sintering of the material will affect the wear resistance of the corundum brick. Good room temperature pressure, low porosity materials made of corundum brick has better wear resistance.

Corundum brick is industrial alumina as the main raw material, including alumina content> 90%, belongs to high alumina content of refractory brick. Corundum brick's physical and chemical property is very good, today we talk about the wear resistance test analysis of corundum brick.

Wear resistance is the refractory material resistance to hard material friction, impact, grinding capacity, so the wear resistance is the higer,  the performance of refractory material is the better, we can analyze practicability in wear erosion environment by wear resistance of corundum brick.

The wear resistance of corundum brick depends on the composition of the minerals, the structure and the density of the particles. Therefore, when producing, the quality of the aggregate, the composition of the mud and the degree of sintering of the material will affect the wear resistance of the corundum brick. Good room temperature pressure, low porosity materials made of corundum brick has better wear resistance.

 

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What Are The Factors That Affect The Quality Performance Of Mullite Brick?

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After refractory material is mixed with impurities, which has a certain impact on its performance, so the production of refractory products should try to ensure the purity of raw materials, especially for mullite light brick, the impurities will affect its chemical properties, thereby affecting its use When the furnace life caused. How does doping affect the quality of mullite brick?
1. Iron oxides such as iron oxide, ferrous oxide can penetrate into the mullite solid solution, although the melting point of mullite has little effect, but the impurities will be cast glass stained into a dark, increase the glass content, And the fire resistance of the product is reduced.
2.  Too much alkali metal oxide can reduce the mullite content, serious or even break the mullite crystallization and melt, while producing more glass phase affect the performance of mullite light brick.
3. Calcium oxide slows down the role of light mullite crystallization, although little effect, but also need attention.
4. A small amount of magnesium oxide will produce impurities in the crystal, the corresponding reduction in the number of mullite.

After refractory material is mixed with impurities, which has a certain impact on its performance, so the production of refractory products should try to ensure the purity of raw materials, especially for mullite light brick, the impurities will affect its chemical properties, thereby affecting its use When the furnace life caused. How does doping affect the quality of mullite brick?

1. Iron oxides such as iron oxide, ferrous oxide can penetrate into the mullite solid solution, although the melting point of mullite has little effect, but the impurities will be cast glass stained into a dark, increase the glass content, And the fire resistance of the product is reduced.

2.  Too much alkali metal oxide can reduce the mullite content, serious or even break the mullite crystallization and melt, while producing more glass phase affect the performance of mullite light brick.

3. Calcium oxide slows down the role of light mullite crystallization, although little effect, but also need attention.

4. A small amount of magnesium oxide will produce impurities in the crystal, the corresponding reduction in the number of mullite.

 

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The Temperature Affects The Service Life Of Ceramic Fiber Blanket

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When the use of ceramic fiber blanket, to regular maintenance, so as to extend the service life, in addition to ensuring the quality of its use, the impact of the life of the factors also need to know what can we, today we mainly talk about Is the point, that is, temperature factors, how the temperature affects its life, together from the following simple analysis about it
First of all must be allowed to use the temperature conditions used, the development of the crystal is slow, the nature of the fiber is relatively stable, in the oxidizing atmosphere from external shocks, the life of up to 5-10 years, followed by the kiln The use of fuel types (gas, oil, coal), furnace atmosphere, furnace atmosphere containing the composition of corrosive substances to determine the use of refractory fiber temperature, there is the use of reductive furnace gas should be used as a raw material The aluminum silicate acupuncture blanket is used as an industrial kiln lining lining material and is coated with an anticorrosive coating on the surface of the ceramic fiber blanket lining, which not only improves its chemical stability and improves its wind resistance and reduces the shrinkage of the fiber lining , It is necessary to calculate the thickness of the wall thickness of the thickened aluminum silicate needle according to the composition of the reducing atmosphere in order to obtain the same insulation effect as the refractory fiber lining in the reducing atmosphere.
As long as the service life is improved, our production costs are reduced, so the use of temperature control must be in accordance with the requirements of the temperature, so that ceramic fiber blanket life will be extended.

When the use of ceramic fiber blanket, to regular maintenance, so as to extend the service life, in addition to ensuring the quality of its use, the impact of the life of the factors also need to know what can we, today we mainly talk about Is the point, that is, temperature factors, how the temperature affects its life, together from the following simple analysis about it

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Influencing Factors Of Performance Of Mullite Insulation Brick

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 The insulation performance of mullite insulation brick is very good, depending on the good performance of mullite brick, so we have to control the impact of mullite insulation brick performance factors.
Mullite tiles usually contain impurities such as TiO2, Fe2O3, CaO, MgO, K2O and Na2O, and the impurity content of mullite produced from natural raw materials is higher than that of synthetic raw materials. These impurity oxides play a role in mullite, reduce the temperature and viscosity of the melt, increase the amount of liquid phase, increase the dissolution rate and dissolution of the melt to the solid phase, but the impurity oxides The effect of K2O and Na2O on the liquid formation temperature is the largest, and K2O and Na2O decrease the temperature of the non-variable point by 513 ~ 724 ℃, respectively, and also decompose the effect of mullite. Among these impurity oxides, the effect of TiO2 is the smallest, and only the variable point temperature is reduced by 101 ~ 107 ℃. When the TiO2 content is less, in addition to part of the solid solution in the mullite to form a limited solid solution to promote the formation of mullite and crystal growth, there are some at high temperatures into the liquid phase to form vitreous. Fe2O3 in the high temperature of mullite and corundum in a certain solid solubility, the formation of limited solid solution. Its solid solubility in corundum is higher than that in mullite, and the lattice of mullite and corundum grows up due to the formation of solid solution. The effect of Fe2O3 on the initial melting temperature of Al2O3-SiO2 system is related to the Al2O3 / SiO2 ratio in the system. When Al2O3 / SiO2, the initial melting temperature is 1380 ℃. When Al2O3 / SiO2> 2.55, Melting temperature increased to 1460 ℃, and with its A12O3 content increased gradually increased. In the reducing atmosphere, Fe2O3 was reduced to FeO and de-dissolved into the glass phase, and the initial melting temperature of the system decreased, respectively, down to 1240 ℃ and 1380 ℃. In short, with the mullite brick Al2O3 content increased, its high temperature performance increased; and the amount of flux increased, high temperature performance. According to this, strict control of impurity oxide content, especially K2O, Na2O and Fe2O3 content, is to obtain high-performance mullite brick important measures. In the use of alkali-containing components of the slag or gas environment, the use of mullite brick have a serious erosion.

The insulation performance of mullite insulation brick is very good, depending on the good performance of mullite brick, so we have to control the impact of mullite insulation brick performance factors.

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The Factors To Influence The Performance Of Mullite Insulation Brick

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Impurities have a certain impact on the performance of refractory material, so in the production process, we should try to ensure the purity of raw materials, especially for mullite insulation brick. Impurities can affect chemical properties, which can affect the use life of the furnace.

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Future Development Trend Of Refractory Material Industry

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The future refractory raw material will be mainly in high-purity, natural selection and synthetic use. Develop and utilizate the "three stone" raw materials, namely, andalusite, sillimanite, kyanite raw materials, can improve the microstructure and thermodynamic properties of aluminum-silicon refractory material. As the "three stone" at high temperature phase transition to mullite, and mullite expansion coefficient is smaller, help to improve the thermal shock resistance of the material.

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The Factors To Influence The Performance Of Mullite Insulation Brick

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Impurities have a certain impact on the performance of refractory material, so in the production process, we should try to ensure the purity of raw materials, especially for mullite insulation brick. Impurities can affect chemical properties, which can affect the use life of the furnace.

Firstly, FeO can penetrate the solid solution of mullite, even if it does not have a large effect on the melting point of the mullite, it can darken the glass phase and affect the performance of the mullite insulating brick.

Secondly, excessive alkali metal oxides can reduce the content of mullite, and even destroy the crystallization of aluminum andalusite, while it will have an impact on the glass phase, and affect the properties of mullite insulation brick.

Finally, CaO will slow down the crystallization process of mullite, although little effect, still need to be concerned about. There is a small amount of magnesium oxide producing crystal impurities, so that the mullite phase reduced. mullite light insulation brick is to select strictly raw materials, use high purity mullite, control impurities content.

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