The Basic Maintenance Of The Rotary Kiln

By Author: zhaojing
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The purpose of the refractory lining is to insulate the steel shell from the high temperatures inside the Rotary Kiln, and to protect it from the corrosive properties of the process material. It may consist of refractory bricks or cast refractory concrete, or may be absent in zones of the rotary kiln that are below around 250C. The refractory selected depends upon the temperature inside the rotary kiln and the chemical nature of the material being processed. In some processes, such as Cement Kiln , the refractory life is prolonged by maintaining a coating of the processed material on the refractory surface. The thickness of the lining is hongxingly in the range 80 to 300 mm. A typical refractory will be capable of maintaining a temperature drop of 1000C or more between its hot and cold faces.For external-heating Cement Rotary Kiln , Materials do not have direct contact with fire and smoke , the heat source lies between heating furnace and the cylinder .Through transfer from heat-resisting Steel , Material ...
... is heated . The heating furnace is covered with refractory fibre , which can save energy and consumption . As limited by the cylinder material and heating method , the length of hongxing barrel is not more than 15 meters , with heating temperature not exceed 1200℃. Compared with internal-heating cement Rotary Kiln , the external-heating cement Rotary Kiln have smaller production .Applicable heating methods are : electric heating , fuel gas , fuel oil , bunkercoal and etc . The purpose of the refractory lining is to insulate the steel shell from the high temperatures inside the Rotary Kiln, and to protect it from the corrosive properties of the process material. It may consist of refractory bricks or cast refractory concrete, or may be absent in zones of the rotary kiln that are below around 250C. The refractory selected depends upon the temperature inside the rotary kiln and the chemical nature of the material being processed. In some processes, such as Cement Kiln .wet process rotary kiln: http://www.hxjqmining.com/pro/cemen_rotary_kiln.html