With the development of society, the awareness of energy and environmental protection has become more and more popular among the people, and the country's requirements for environmental protection have also been continuously improved. Based on the principles of reduction, resource utilization, and harmlessness, the goal of developing high value-added and multi-functional new materials is to explore new ways to reuse solid wastes have received widespread attention. At present, the research and utilization of solid wastes such as slag, steel slag, and fly ash are widely used. The comprehensive utilization value of other types of industrial wastes needs to be further developed. A major direction of reuse research.
Nickel slag is the solid waste slag produced by smelting nickel-iron alloy. Nickel-iron alloy is mainly used for stainless steel production. Therefore, nickel slag is also called stainless steel slag or nickel-iron slag. Its mineral composition is mainly fayalite and fayalite. There are big differences in the source of ore and smelting process, among which the main chemical components are SiO2, Fe2O3, Cao, MgO, Al2O3, while the content of SiO2 and Fe2O3 is higher
After the nickel slag is ground, its activity can be stimulated, the activity of the nickel slag powder after grinding is improved, and it can be used as a mineral admixture in concrete. The production process of nickel slag has also developed from the early vibrating ultra-fine grinding system ball milling system to the current large-scale vertical grinding system, which makes the quality of nickel slag powder continue to improve, and the performance of concrete produced with it as an admixture is also simultaneously obtained. improve
The development of industrialization and science and technology has allowed developed countries such as Europe and the United States to use nickel slag powder as a mixed material and widely used in various concrete projects. Various technical discussions have been carried out, which have effectively promoted the application of nickel slag powder, and also promoted the development of the comprehensive utilization industry of the entire solid waste industry.
