2016年8月23日星期二

Application and advantages of acid proof brick

Acid Proof Brick
Acid proof brick and plate are widely applied in petroleum, chemical industry, medicine-making, food, paper-making, chemical fertilizer, agriculture, pesticide, chemical fibre, textile industry, smelting, and power-generating plants etc., 
 Acid proof brick use quartz, feldspar and clay as main raw material. It is anti corrosion and acid proof material sinterred through high temperature kiln. It possesses features of high acid resistance, low water absorption rate, not easily be oxidized under room temperature, not easily be contaminated by media. The main component of acid proof brick is silica which is kind of Mullite formed by sintering under high temperature, which is a material with high acid resistance. Because its intensive structure, low water absorption rate, it can be resistant against any alkaline medium with any concentration, but it is not resistant to high temperature molten alkali. Refractory material acid brick containing 70% or more silicon dioxide. It is mainly used in chemical industries, such as ditch puzzle acid, acid wells, acid storage library and impacted ground that bears huge acid.

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2016年8月18日星期四

On the light burning magnesium ball structure

Refractory Balls Used for HBS Regenerator
Application of regenerator in gas burning industrial furnace combustion system
There are between light burning magnesium powder crystal molecule and a molecule force there, this force is called intermolecular forces. Intermolecular forces and the polarity of the molecules magnesia carbon brick related to the whole molecule is electrically neutral. Because the molecular positive charge and negative charge of electricity power is equal. But molecules

Both internal charge distribution situation, the molecule can be divided into polar molecules and non-polar molecules categories.

Each charge, there is a "charge centers", such as positive and negative charge relative position of the center of refractory brick the "+" or "one" is represented, the positive and negative charges coincide with the center of the molecule is called the non-polar molecules, the molecules do not coincide called a polar molecule. CKS molecules, the negative charge carried by the central power

As q, the distance l, called the product of the two dipole moment p - P.

Forming a light refractory material burning magnesium ball intensity light burning magnesium ball size depends on the structural strength of the internal structure of the organization's role in the size of the force. Theoretically, the process of forming a light burning magnesium ball castable refractory material strength, mainly two physical and chemical processes. Physical process of light magnesium burning ball burning magnesium powder and water are mixed by the light

After extrusion. Light burning magnesium powder diameter of about 0.074mm, molecules or crystal structure was physics.

According to a large number of experimental and theoretical results show that there is interaction between the charge and the charge, the same charge repel each other, dissimilar charges attract each other. Show that the interaction force between two point charges, whose size is proportional to the product of two charges of electricity, with two

It is inversely proportional to the square of the distance from the charge. Light burning magnesium powder crystal unit there are also an equal amount of positive and negative charges.

In a moment there will always be a dipole exists, this is called an instantaneous dipole-dipole. Intermolecular forces and the polarity of the molecules related to the whole refractory company molecule is electrically neutral. Because the molecular positive charge and negative charge of electricity power is equal.

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2016年8月17日星期三

Ladle slide gate damage theory and meaning of conjunction

Ladle slide gate plate mainly contains two types, alumina carbon and alumina zirconium carbon. With steel production increasing and steel quality improving, calcium treatment process is applied, therefore, calcium content in the melton steel increased. Using alumina carbon and alumina zirconium carbon slide gate plate when casting steel, SiO2 and Al2O3 in the slide gate plate would mixed with [Ca], [CaO] in the melton steel or slag and get into low-melting point materials and feldspar, which would cause damage of slide gate plate. This type low-melting point materials would be easy to crushed down by erosion, new low-melting point material would re-appear. This progress would cause the erosion heavier, in which way the slide gate plate would be damaged gradually.
Conjunction of slide gate plate can reduce the number of turnover ladle, low down ladle serves and turnover pressure. In addition, slide gate plate conjunction can low down labor working, improve ladle lining temperature, thus low down casting temperature and bring a number of benefit for production and reducing cost.
From Year 2008, our refractory material factory succeed to develop double conjunction and from Year 2010, triple conjunction is developed. With the triple slide got into the normal production, on-site production, reduce labor intensity, the effect of reducing the cost of generation is very obvious.

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2016年8月10日星期三

insulating castable,Clay, High Alumina insulating bricks is heat insulation material used for steel plants Heating Furnace

Clay, High Alumina Insulating Bricks
The use of the bricks can reduce the heat capacity of kiln walls and promote the heat efficiency of kilns. The product is applicable for constructing industrial kilns and inner lining of kilns.
 Clay, High Alumina Insulating Bricks Introduction:

Produced with unique advanced technology, the clay and high alumina heat insulating bricks possess the characteristics of high intensity for pressure and good thermal shock stability. The use of the bricks can reduce the heat capacity of kiln walls and promote the heat efficiency of kilns. The product is applicable for constructing industrial kilns and inner lining of kilns.



Light-weight Insulating Castables for Heating Furnace Introduction:

Our company manufactures and supplies superior quality range of Insulating Castable that is a light weight refractory concrete. We provide pre-cast and fired castable at industry leading prices and these are widely used as castable for walls, roof and bottom of steel rolling heating furnace.



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2016年8月8日星期一

The notes for using slide gate plate




1.Hot mechanical damage, hot chemical erosion and misoperation are the main three reasons for the damage of slide gate plate;
2.Use alumina zirconium carbon slide gate plate, ensure slide gate plate has good erosion resistance and thermal shock resistance; use slide gate and mechanism with reasonable design and even stress distribution, the service life of slide gate plate can be effectively improved;

3.Follow the standard operation procedure during the tapping of molten steel; right and good maintenance of refractory materialslide gate plate can also improve the service life of slide gate plate.

Article source:
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2016年8月4日星期四

Some knowledge about Magnesia Carbon Brick in changxing refractory

Magnesia Carbon Brick
Magnesia Carbon Brick is widely used in Electric Arc Furnace sidewalls, converters, hotspots and coldspots, and ladle furnace slag lines.
Magnesia carbon brick is a compound refractory material. It takes use of slag resistance ability of magnesite sand, high thermal conductivity and low thermal expansion of carbon to compensate the poor spalling resistance of magnesite sand which is the biggest drawback.
Magnesia carbon bricks are mainly used in the lining of converter furnace, AC arc furnace, DC arc furnace and slag zone of ladle. The quality of magnesite sand which is the main refractory raw material of magnesia carbon bricks effects much on the performance of magnesia carbon bricks. The higher the content of Magnesium Oxide, the less impurity, the stronger resistance to slag penetration and slag melting loss.

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2016年8月3日星期三

The application and working principle of Sliding Nozzle

Nowadays refractory material sliding nozzle systerm is becoming more and more important in the process of melting and be an necessary part for melting. It is the control device of molten steel in casting process, which can precisely adjust the water flow from ladle to tundish, to make the flowing and flowing out of the molten steel can reach a balance, so that the continuous casting operation is easier to control.Because of its good controllability, the sliding gate system can improve the efficiency of steel making and has been developed rapidly. At present, the sliding gate system is widely used in ladle and tundish..............

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