The development trend of green refractory materials

The future expansion of cement kilns in refractory materials can benefit from the promotion of similar energy conservation policies in the cement kiln, developed by the magnesium aluminum spinel, mafic spinel and mafic aluminum spinel brick in large new dry cement Brick kiln sintering belt and transition zone used to meet or exceed the magnesium chrome brick life, can replace magnesium chrome brick, significantly reduced the chromium pollution.
In the increasingly scarce national resources today, the new green and energy saving has become the purpose of the development of refractories. At present, Europe, Japan, the United States and other countries and regions due to government regulations, has been basically no chromium refractories, the use of green refractory has become an inevitable trend.There have many kinds of refractory products. Such as fire brick for sale, refractory nozzle, refractory raw material and other refractory products.

Should focus from the big, small start, face the reality, have focused, vigorously promote the user side, the production side, the R & D side, the design side of the co-operation and coordination. As a business, should strengthen cooperation with scientific research institutions and user units, increase production and research cooperation efforts, in the green refractory technology to achieve new breakthroughs.

China's refractory industry, the overall level of development from the advanced green there is a certain distance. Green refractories have attracted the attention of refractories and related industries. Relevant government departments and trade associations have also developed corresponding policies and measures to encourage and promote the fire-resistant green work. China Refractories Association also believes that the second five during the development of refractory materials will show new features, its basis is to improve product quality and application level, the focus is to increase or strengthen the new content, that is, energy saving and low carbon.

The basic direction of the development of refractory fire brick technology is based on independent innovation as the basic starting point, take the refractory material design and application of scientific, production, application of fine and green, consumption reduction and resource conservation of the integration of the road to promote research and development On a new level. The innovative direction of the refractory for the cement industry is chrome-free and energy-saving.
For the understanding of green refractory materials and behavior, should be under the guidance of the concept of systematic, balanced. For the refractory industry, should be from the preparation of raw materials to the production, construction, application and post-processing in all aspects of scientific and systematic considerations, to avoid thinking and vision confined to a point or face and trade-off.

Strengthen the energy-saving emission reduction, the development of green, low-carbon refractory products, is the global green economic strategy on the refractory industry's fundamental requirements. To further promote the refractory industry, technological innovation, product structure adjustment and application of technology to enhance and vigorously develop longevity energy-saving, environmentally friendly new type of green refractory products, refractory materials industry has become a megatrends.
There have many kinds of refractory products in our factory.Such as fire brick ,magnesia carbon brick, refractory raw material, refractory nozzle and other refractory products.
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Welcome to know the factors that affect the use of slide gate plate

1.Breakage around the hole caused by thermal shock. Small crack could appear when high temperature molten steel and refractory material get in touch, so it is crutial to improve the termal shock resistance and take measures to prevent the cracks from expanding.There have many kinds of refractory products in our factory. Such as magnesia carbon brick, fire brick for sale, refractory nozzle, refractory raw material.

2.The erosion and impact from molten steel and slags. The erosion and impact resistance abilities of slide gate plate has a big influence on its service life. The erosion is mainly from the Mn, MnO, FeO, CaO in the molten steel and SiO2 from slide gate plate, erosion resistance ability can be improved if the SiO2 content in slide gate plate is reduced. By improving carbon content, the permeation and reaction from molten steel and oxide can be effectively prevented, by adding antioxygen, the oxidation of carbon can be effectively prevented;

3.The abrasion during sliding. Especially when there is already damage on the ladle slide gate plate, the abrasion from the concrete steel will be more serious. So the strength should be improved, meanwhile keep low apparent porosity and smooth surface to reduce the penetration from molten steel. The main effective ways of improving strength and lowering apparent porosity are high pressure forming and vacuum oil immersing.There have many kinds of refractory products in our factory. Such as magnesia carbon brick, fire brick for sale, refractory nozzle, refractory raw material. When you need any refractory products, welcome to view our factory anytime.
Article source: http://www.chinafirebrick.com/Company_News_119.html

The features of magnesite for producing magnesia carbon brick

Magnesite is the main raw material for magnesia carbon brick, normally there are two kinds, sintered magnesite and fused magnesite. But comparing this two kinds, fused magnesite has the advantages of lager periclase crystal, bigger bulk density, etc. It is the priority raw material for producing magnesia carbon brick. When producing normal magnesia based refractory material, the requirements on megnesite are high temperature resistance and erosion resistance, thus the purity of magnesite, C/S ratio and B2O3 content are important. With the development of metallurgy industry, the smelting condition is becoming harder, the requirement of megnesite used for producing magnesia carbon bricks used in smelting equipment(such as Converter, EAF, Ladle) is not only on the chemical composition, but also on structure like high density and large crystal.
There have many kinds of refractory products in our factory. Such as magnesia carbon brick, fire brick for sale, refractory nozzle, refractory raw material. When you need any refractory products, welcome to view our factory anytime.
Article source: http://www.chinafirebrick.com/Company_News_118.html

Classification of unshaped refractory material

Compared with shaped refractory material, and unshaped refractory material have many advantages. For example, easy manufacturing process, short manufacturing period, saving energy, good integrity when using, widely application, and convenient for installation.

Though all with same shape, unshaped refractory products have different type. Generally, it is divided into following types:

1. According to porosity, there are compact unshaped material and insulating unshaped material.Compact unshaped material is common product. While insulating unshaped material is light weight castable, which is made according to ISO1927-75 standard. After frying, whose porosity cannot less than 45%.

2. According to different binder, castable is divided into two big molds, which are Inorganic binder castable and organic binder castable. According to Hardening mode , there are air hardening castable, hydraulicity castable, hot hardness castable and others kinds castable.

3. According to Construction characteristics, there are refractory castable, gunning mix, plastic castable, ramming mass, coating material , refractory mortar, vibration material and others.

Even with same specification, different function with different manufacturing method, if you need this kind products, please confirm application in advance. Welcome to view our website to know more kinds of refractory products. Such as fire brick for sale, refractory nozzle, refractory raw material and Magnesia Carbon Brick. Welcome to view our factory to know more details about refractory products.
Article source: http://www.chinafirebrick.com/Company_News_117.html

The sintering of tundish with dry vibration mix lining

1.For tundish with dry vibration mix lining, tundish should be cleaned before sintering, tundish cover should be changed if it is damaged. Under normal working condition, the sintering time for tundish should be more than 2.5 hours but less than 3.5 hours. Please follow the below procedures:
Small fire: Not less than 50 minutes;
Medium fire: Not less than 50 minutes;
Strong fire: Not less than 50 minutes;
Make sure sintering temperature is above 900 Deg.C, tundish in red hot condition.

2.Under abnormal working condition(time is not enough), the sintering time for tundish should be more than 2 hours, 60 minutes with medium fire and 60 minutes for strong fire. There have many kinds of refractory products in our factory. Such as fire brick for sale, Magnesia Carbon Brick, refractory nozzle, refractory raw materials and other refractory products.
Artilce source: http://www.chinafirebrick.com/Company_News_116.html