Water slag is a process of rapid cooling of blast furnace slag hot melted in water. There are two main methods: water quenching in the slag pool or water quenching in front of the furnace. Aqueous slag is used as construction materials for the production of cement and concrete. Because aqueous slags have potentially hydraulic gelling properties, they are non-corrosive. Under the action of cement clinker, lime, gypsum and other activators, it can be used as high-quality cement raw material and can be processed into: Portland slag cement, gypsum slag cement, pozzolan cement, lime slag cement, slag bricks, concrete slag, etc. The price depends on the type of cement manufactured.
A blast furnace does not necessarily contain water slag. In some places, the liquid slag is blown into wool from theitier and used directly.
Water slag has nothing to do with sintering. Blast furnaces use sintered or lump ore to produce iron and slag.
More than 99% of blast furnaces produce liquid slag into aqueous slag due to its low cost.
As long as there is a blast furnace, there will be slag, most of which is transformed into aqueous slag.