Vertical mill is advanced equipment for the production of high value-added slag

    Slag is an industrial solid waste, with the continuous improvement of iron production, substantial growth in the amount of slag produced, causing a lot of accumulation which it is bound to affect the development of enterprises and the social environmental governance. Thus, in the current situation to understand and study the performance characteristics of slag, development and utilization of water slag by turning waste into treasure has a very important meaning and value for the development of recycling economy and building a conservation-oriented society.

    Slag is the process of put blast furnace slag of hot melt state into water for rapid cooling, there are two ways which are blast furnace slag water quenching or pre-furnace water quenching, with the continuous improvement of the domestic processing technology and in-depth study of the water slag, we found that ground slag into certain fineness can change the performance and expand wider application.

    With the expanding market of slag, slag prices are rising. Water slag powder products and water slag products industry is in short supply, particularly slag cement, slag aerated blocks, aerated water with residue brick shows and increasing demand. We can say that slag processing has become good project of getting rich and energy saving in recent years. Water slag applications continue to expand after grinding especially by vertical mill, specific products are:

    1. Slag cement products: Portland blast furnace slag cement, gypsum slag cement, lime slag cement. Lime slag cement can be used for steam curing precast concrete products, water, underground, road and other unreinforced concrete and mortar industry and civil building mud;

    2. Produce slag bricks and wet grinding slag concrete products: slag bricks, wet grinding slag concrete, aerated steam-cured brick, aerated concrete blocks, fly ash aerated brick, unburned brick, brick pad;

    3. Used for insulation packing: Instead of diatomite used for heat insulation filler, can save cost;

    4. The production of slag powder: blast furnace slag can be used for raw material of produce slag powder after grinding by ultra-fine mill, can be used for building materials, roads, chemical, cement, water, brick and other industries.

    Vertical mill has significant use in slag processing and utilization, is the main grinding equipment for slag’s efficiency utilize. Germany Siemens PLC automatic control technology is adapt, equipped with automatic control system which enables remote control, easy to operate, can basically realize unmanned operation, can provide high quality finished powder.