At present, the discharge of steel slag in China is large and the utilization rate of the ultra-fine vertical mill is low. The utilization of steel slag as the base material for pavement can reduce the exploitation of natural soil stone, which has remarkable economic and social benefits. The mixed aggregate with a certain proportion of graded steel slag and crushed stone not only optimizes the gradation of steel slag, but also reduces the adverse effect of the hydration and expansion of steel slag on the stability of aggregate gradation. With the use of different binder to stabilize the composite aggregate, the ratio is optimized with the unconfined compression strength as the index, and the optimum ratio of the fly ash to the stability of the fly ash and the stability of the cement fly ash is made.

Raymond mill to solve the technical problems of low production and high energy consumption of industrial mill, absorb advanced European technology and combine many years of advanced grinding machine design and manufacturing concept and market demand, after many years of deep design and improvement of large grinding equipment.

Raymond mill is composed of fine crushing, drying, grinding, powder selection and transportation. It has a small area, simple process, high grinding efficiency, low energy consumption, low noise, high drying ability, easy to adjust the fineness of the product, dust pollution and easy to repair, reliable operation and so on. Especially in the large grinding process, it fully meets the needs of customers, and the main technical and economic indicators have reached the international advanced level. Widely used in metallurgy, electric power, cement, chemical, ceramic, non-metallic ore, power plant desulfurization, slag, slag, slag, slag, coal, cement clinker, glass, quartz, limestone and other industries of large-scale material grinding and ultrafine grinding processing, steel slag and blast furnace slag, power plant slag and fly ash grinding.