Re: Cement milling

1.5 to 2 m/s air velocity through the mill is normal for a closed circuit mill.

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Cement milling Question 22

Is there any literature about the influence of triethanolamine addition in the cement milling process, related with the final characteristics of cement? Are there a optimum rate of triethanolamine addition in the cement milling process? Can I cause some damage in the final cement characteristics if we use a triethanolamine superdosage?

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Re: Cement milling

There are many literature references to the effects of grinding aids and cement conditioners. The optimum rate of addition needs to be determined during a series of trials on the mill. The trials need to be designed to ensure there is no detrimental effects on the final cement characteristics.

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Cement milling Question 23

Can we use the slag of the steel plant as an additive during the cement grinding process, if so, in which percentage? The chemical composition of the slag is: SiO₂ - 14.97 per cent, Fe₂O₃ - 26.89 per cent, Al₂O₃-8.43 per cent, CaO - 21.55 per cent, MgO - 8.48 per cent, Na₂O - 0.249 per cent, K₂O - 0.301 per cent, MnO - 0.15 per cent, Cr₂O₃ - 0.38 per cent, P₂O₅ -0.096 per cent, LOI - 13.22 per cent.

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