Characteristics of homogenizing material
Published Time:
2023-02-13
The birth and development of any industry are inseparable from scientific and technological progress. This is also the promotion of the industry generated by the continuously expanding market demand, prompting relevant personnel to continuously update and iterate products.
The generation and development of any industry are inseparable from scientific and technological progress. This is also the promotion of the industry generated by the continuously expanding market demand, prompting relevant personnel to continuously update and iterate products. In the processing industry, this requirement is even greater, such as Homogenized material processing has also moved from traditional processes to more advanced technological processing. So what are its characteristics? What should we pay attention to when using it?
Currently on the market, Homogenized material mainly include Mullite homogenized materials, spinel homogenized materials, and homogenized sintered corundum. After homogenization treatment, the homogenized bauxite material can eliminate the problem of chemical composition differences between particles of different sizes to a certain extent. Regardless of Al2O3 or Fe2O3 content, the fluctuation of bauxite clinker is much higher than that of bauxite homogenized material, and the homogenization process can also significantly reduce Fe2O3 impurity content. Studies have also shown that after homogenization treatment, the homogenized material can not only control the fluctuation of chemical composition within a reasonable range, but also stabilize the bulk density and apparent porosity of the raw materials through homogenization treatment, thereby improving the quality of the raw materials. From the microscopic structure point of view, since the phase composition and distribution uniformity of the bauxite clinker after calcination are closely related to the distribution of boehmite, kaolinite, and impurities in the original ore, the uniformity of the material composition is improved after homogenization treatment, and it will also have a certain impact on the phase composition and microstructure of the clinker.
The crystal distribution of traditional high-alumina bauxite clinker is very uneven, while the particle size and distribution of homogenized bauxite are relatively uniform, and small and uniform closed pores can also be seen. In addition, due to the high content of glassy phase in homogenized bauxite, the glass phase contains Ti 、 Fe is significantly higher than that of high-alumina bauxite clinker. At the same time, due to Homogenized material process, impurities originally concentrated in bauxite will be dispersed. A large amount of glassy phase is formed at high temperature, distributed between corundum grains, weakening the entire system, which may lead to a decrease in the overall high-temperature performance of the material. On the other hand, because the glassy phase is uniformly distributed between the corundum grains, and the liquid phase can promote sintering at high temperature, the grains of homogenized alumina grow significantly, and the structure becomes denser. Large outdoor homogenized material silos: suitable for the storage and homogenization of a large number of finished particles, the capacity can be customized according to user needs, and due to their large size, they are generally placed outdoors.
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