·It takes between 3200 3500 pounds of raw material to make one ton of cement the bulk of the raw material being limestone Let s say the ratio is tons limestone for every ton of cement
In terms of electricity usage cement milling the grinding of clinker gypsum and other materials as required accounted for around 56 per cent A further 28 per cent is used in the production of clinker preparing the raw meal and operating the kiln with the remaining 6 per cent used to power other ancillary services on site
It is tentatively presumed that about tons of limestone are required to produce 1 ton of plain Portland cement and about tons of limestone for every ton of blended cement Thus for the present capacity of about 425 million metric tons per year—composed in India of approximately 25% plain Portland cement and 75% blended cements—the
·The results show that approximately and of materials are required to produce a ton of the product in raw material preparation clinker production and cement grinding stages
·It has been estimated that about tons of CO 2 are emitted from 1 ton of cement production based on cement plant with modern technology and depending upon the ratio of clinker to of 330 m 2 /kg to 360 m 2 /kg to produce cement The gypsum calcium sulfate is added to control the initial hydration reactions of the cement and
·However as a general estimate raw material processing in cement production can emit around tons of CO 2 per ton of cement produced This figure includes emissions from activities such as quarrying crushing grinding and transporting raw materials with gypsum to produce cement The amount of CO 2 emissions per ton in clinker
6 ·These are used to manufacture Portland Pozzolana Cement PPC a popular choice for many construction projects Iron Ore It is used to add iron oxide to the mix to enrich the cement s colour while contributing to the fusion of raw materials for cement production and the strength of the final product Gypsum It regulates the cement s
·Total energy required to produce 1 tonne of Cement = 468 MJ Dry process = 1 tonne of Cement = 4125 MJ Wet Process = 1 tonne of BLA = 34MJ 15% of 150kg = using dry process = 34MJ 150kg = Energy reduction = = Energy reduction = DISCUSSION OF
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