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large amount of ash. However, coal which is used in cement industry is least harmful for environment because . sulfur during process of production turns into . sulfur (IV)-oxide and then merges with calcium oxide making calcium sulfate (gypsum). Gypsum has to be embedded into clinker and ash also embeds into clinker. In the cement factory in ...
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May 11, 2021· Sulfate-resisting cement helps reduce the risk of sulfate side effects on concrete. Its most common use is for constructing foundations in soil with high sulfate content. This concrete type can also be beneficial for projects like canal linings, culverts and retaining walls. 8. Blast furnace slag cement.
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In the cement industry, coal quality is very important as it affects both the quality of the cement and the operation of the plant. The Indian cement industry uses coal because of its abundant availability and shortage of oil and natural gas. Today the Indian cement industry has to use coal of high ash content with varying characteristics.
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The best variety of coal is Anthracite It is also known as the hard coal and attained its name due to the compact carbon variety with a submetallic luster. It contains the greatest carbon content, minimal impurities, and massive energy density of all coal types, and is the top coals ranking. Moreover, anthracite is also the oldest variety of ...
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The use of alternative fuels in cement manufacturing,, on the one hand, allows the rotary kiln of any cement plant to be fired with low-volatile fuels such as petcoke, low-volatile bituminous coal,, The type of fuel used in cement production is subject to the constraints imposed by any deleterious effect on cement quality, refractory life ....
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Answer (1 of 4): Coal is used to burn raw material to clinkering temp. i.e 1450 degree centigrade. Low grade coal can be used for cement manufacturing but it will need high grade of limestone for good quality cement. you can say low grade coal need high grade limestone and high grade coal need lo...
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It is a mechanical device used to grind raw coal into pulverized coal powders. The most used coal mills in cement plants are air-swept ball mills and vertical roller mills. At present, most cement plants use coal as the main fuel in the clinker production process. The standard coal consumed by the new dry process for producing 1 ton of cement ...
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Coal powder has unique strict demand in fineness. The completed size is 0.0445mm. Coal mill is major equipment of cement plant and used for drying and grinding coal. The equipment is mainly consisted of feed device, main bearings, rotating parts, drive device, selling device, high-voltage start-up device and lubrication system. So coal grinding ...
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still be used in cement kilns. Coal is a combustible carbonaceous rock, containing many kinds of organinc and inorganic material, formed from accumulated vegetable matter that has been altered by decay and various amounts of heat and pressure over millions of years[8-9]. ... cement plant is 840-850 kcal /kg, which is almost
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Industries: Coal is used in a variety of sectors to make a variety of products. Cement, paper and aluminium manufacturing, chemical and pharmaceutical manufacturing are just a few of the industries that use coal. Chemical businesses rely on coal for a variety of raw materials such as benozle, coal tar, sulphate of ammonia, creosote, and so on.
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