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Extensive use of blast furnace slag
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Post Posted: Tue Feb 13, 2018 8:29 am     Post subject: Extensive use of blast furnace slag
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Blast furnace slag is kind of molten silicate substances discharged from the blast furnace smelting pig iron; blast furnace smelting, from the top into the iron ore, fuel (Jiao Tan) and the flux, when the furnace temperature reaches 1400~1500 DEG C, the material to be melted into liquid in the liquid phase, floats at the mouth through the iron slag, the main iron ditch skimmer separation or slag discharge, which is blast furnace slag. Blast furnace slag is composed of gangue, ash, and other impurities can not enter the flux in pig iron which is a eutectic mixture.
There are three ways of dealing with the high temperature slag of blast furnace slag: natural cooling into hard dry slag by water quenching; high temperature liquid slag crushed into slag loose; with steam or compressed air to heat the liquid slag down, turned into a fluffy slag.Electrostatic spray molding machine
The blast furnace slag is a good method for comprehensive utilization, and 100% of the advanced blast furnace slag has been used. At present, punching equipment of water slag can ensure the quality of water glass slag, the degree can reach 90% ~ 95%, the average particle size of slag is 0.2 ~ 3.0mm, slag water is less than or equal to 15%.33 mbar monoblock water ring vacuum pump with stainle
The main uses of the blast furnace slag are as follows: (1) the production of slag cement. Water slag has potential water and cementitious properties, and it can show the hard cementitious property of water under the action of cement clinker, lime and gypsum and so on, so it is a good raw material for cement. Water slag can not only be used as cement mixture, but also can be made into non clinker cement. (1) slag Portland cement is made by mixing Portland cement clinker and water slag 3% to 5% of gypsum, mixing or grinding, and then mixing evenly. Slag Portland cement is referred to as slag cement for short.
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