Cement Clinker Processing Equipment
Cement kilns are employed for your pyroprocessing stage of manufacture of Portland along with other sorts of hydraulic cement, in which calcium carbonate reacts with silica-bearing minerals to kind a mixture of calcium silicates. Above a billion tonnes of cement are made per year, and cement kilns would be the heart of this production process: their capability normally define the capability of the cement plant. Since the most important energy-consuming and greenhouse-gas Cemitting stage of cement manufacture, enhancement of kiln effectiveness is the central concern of cement manufacturing engineering.
cement production process
cement is ordinarily produced from limestone and clay or shale. These raw materials are extracted from your quarry crushed to a very fine powder then blended while in the appropriate proportions.This blended raw material is called the 'raw feed' or 'kiln feed' and it is heated in a rotary kiln exactly where it reaches a temperature of about 1400 C to 1500 C. In its simplest kind, the rotary kiln is a tube as much as 200 metres long and maybe 6 metres in diameter, that has a extended flame at one particular finish. The raw feed enters the kiln in the amazing finish and progressively passes down on the hot finish, then falls out of the kiln and cools down.
The material formed from the kiln is described as 'clinker' and it is normally composed of rounded nodules among 1mm and 25mm across. Following cooling, the clinker may very well be stored temporarily within a clinker store, or it may pass directly on the cement mill. The cement mill grinds the clinker to a fine powder. A compact sum of gypsum - a type of calcium sulfate - is usually ground up using the clinker. The gypsum controls the setting properties from the cement when water is added