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the process of cement production

the process of cement production

Cement manufacturing is a complex process thatbegins with mining and then grinding raw materials that include limestone and clay, to afine powder,called raw meal, which is thenheated to a sintering temperature as high as 1450 °C in a cement kiln. In this process, the chemical bonds of the raw materials are broken down and then they are recombined into new compounds.

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    May 12, 2020· The cement manufacturing processinvolves several key steps,including preparing the raw materials,grinding the materials together,heating the newly formed clinker in a kiln, andfinishing the cement with fine grinding. Some of the main ingredients used to make cement include limestone, clay, shale, iron, and sand.

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    TheCement Production Process.Cementkilns are massive cylindrical structures, lined with refractory brick, into which a lime bearing material and fuel such as coal or gas is fed. There is a range of different kiln designs but all rely on the same basic processes — raw feed passing through the kiln is heated to very high temperatures by the .

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    Cementis so fine that 1 poundof cementcontains 150 billion grains. Thecementis now ready for transport to ready-mix concrete companies to be used in a variety of construction projects. Although the dryprocessis the most modern and popular way to manufacturecement, some kilns in the United States use a wetprocess.

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  • What Is theCementManufacturingProcess? (with pictures)
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    May 12, 2020· Thecementmanufacturingprocessinvolves several key steps, including preparing the raw materials, grinding the materials together, heating the newly formed clinker in a kiln, and finishing thecementwith fine grinding.Some of the main ingredients used to makecementinclude limestone, clay, shale, iron, and sand.Different manufacturing techniques will use either wet or dry grinding, but ...

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    Thecement industryhas boosted efficiency by concentrating new capital investment in plants that use the dryprocess of cementmanufacture, and by phasing out operations that rely on the more energy-intensive wetprocess.

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    Thecement industryproduces about 10% of global man-made CO 2 emissions, of which 60% is from the chemicalprocess, and 40% from burning fuel. A Chatham House study from 2018 estimates that the 4 billion tonnesof cementproduced annually account for 8% of worldwide CO 2 emissions.

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    Thecementmanufacturingprocessstarts from the mining of raw materials that are used incementmanufacturing, mainly limestone and clays. A limestone quarry is inside the plant area and a clays quarry is as far from the plant area as 25 km.

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