The application of blast furnace slag and steel slag currently has a rapid development in the steel industry, and the discharge of waste slag is increasing day by day. Blast furnace slag is slag discharged from ironmaking, and steel slag is slag discharged during steelmaking. The discharge of these waste residues causes great environmental pollution and waste of resources. The main components of blast furnace slag are oxides such as CaO, MgO, Al2O3, SiO2, and individual slags also contain TiO2, V2O5, etc. The chemical composition varies depending on the type of steel smelting. In the case of a specific blast furnace slag, the chemical composition should be stable. In addition, various types of blast furnace slag have a common feature that they do not contain free oxides, especially free calcium oxide.
Utilization of Waste Materials on Refractory Materials In recent years, great progress has been made in the reuse of waste materials. However, because of the insufficiency of industrial waste in China and people's lack of re-resources concepts, the industrial waste materials used in refractories are quite suitable. narrow. To this end, while enhancing people's awareness of ideas, industrial wastes are used in many ways, in many aspects, and at multiple levels to realize the reuse of resources.
From the perspective of the type and performance of refractories, the industrial wastes are used as follows: (1) The waste refractories can be directly used or reduced in direct use; (2) The industrial wastes are purified or pre-homogenized to produce high-demand fireproofing. Materials; (3) Industrial wastes are processed directly as refractory raw materials; (4) Metal oxides are extracted from wastes as refractory raw materials; (5) Used as additives (such as binders, anti-hydration agents, etc.) in refractory materials. .
Although the current situation of the use of waste materials in the field of refractories in China still has a certain gap compared with developed countries, it has accumulated good experience with the technological advancement of related industries. At the same time, one problem that needs to be solved is to translate these achievements into the production of refractory materials and achieve commercialization. In this respect, China’s technology is not yet mature. Although some experiments have been successful in the laboratory, there are few reports on commercialization. This is also a problem that current researchers consider. It can be foreseen that once this difficulty is overcome, the application of industrial wastes in refractories is undoubtedly one of the important means for recycling industrial waste.
Concluding remarks At present, the application of industrial waste in China's refractory materials is still in the primary R&D stage. The technology and technology are not yet mature, and further exploration and improvement are needed. If the waste material can be processed and treated effectively, simple, economical and reasonable technological means can be adopted to improve the performance of the refractory material. This has important practical significance for the utilization of waste materials. In addition, the tremendous development of waste treatment and utilization technology also contributes to the research and development of waste materials on refractory materials. While solving environmental and energy problems, it also promotes the development of refractory materials. In the near future, the prospect of wastes in the market of refractory materials will be very broad.
Bulking Gearbox,Bulking Gearbox Reducer,Bulking Gearbox Reduction,Bulking Gearbox Transmission
JIANGYIN TIANCHENG MECHANICAL EQUIPMENT CO., LTD. , https://www.jygearbox.com