The detail of new refractory

发布时间:2018-07-18 15:43 | 编辑:The | 0 次浏览
The detail of new refractoryIn recent years, the promotion of new steel production technologies and new technologies, as well as energy saving and environmental protection requirements, have put forward more special requirements for new refractory materials. From the perspective of future development trends, the new refractory materials will include high-performance structural refractories and ...

The detail of  new refractory 


In recent years, the promotion of new steel production technologies and new technologies, as well as energy saving and environmental protection requirements, have put forward more special requirements for new refractory materials. From the perspective of future development trends, the new refractory materials will include high-performance structural refractories and functional refractory materials.


1. Structural refractory 


The overall development trend of structural refractories will be high purity, densification, precision, popularization of carbon-containing refractories, and composite and amorphous of oxide and non-oxide materials. In particular, the amorphous refractory material will have a large application market in the future, because it has the advantages of short production cycle, energy saving, good integrity, strong adaptability and good comprehensive use effect. The technical development trend of the amorphous refractory itself has the following aspects.


(1) Material aspect. In recent years, the material of amorphous refractory materials is being developed from neutral and acidic oxide materials to basic oxide materials and oxide and non-oxide composite materials, from low purity to high purity, and the raw materials used are naturally Refractory raw materials are mainly developed to synthetic refractory raw materials;


(2) Combination method. In recent years, the combination of unshaped refractories has followed the direction of hydration bonding→chemical bonding→hydration bonding+cohesion bonding→polymerization bonding→cohesion bonding;


(3) Performance. In recent years, the performance of amorphous refractories has evolved from difficult to thixotropic to thixotropic. From the rheological point of view, from plastic-elastic to visco-plastic-elastic and visco-plastic;


(4) Blending water consumption. In recent years, the water consumption of unshaped refractory materials is developing from high moisture to low moisture and no moisture.


2. Functional refractory 


Functional refractory include high-performance insulating refractories, high emissivity energy-saving coatings, high thermal conductivity and high-conductivity refractories, and high-performance rapid thermal storage refractories. High-performance insulating refractory materials include refractory fiber products, ultra-fine microporous lightweight bricks, lightweight unshaped refractory materials, etc. These materials have low thermal conductivity, and the use of such materials in the construction of furnace walls can greatly reduce the furnace body. The heat dissipation and heat storage loss have significant energy saving effects.


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