Reasonable Collocation of Rotary Kiln Can Improve the Calcination Qualityreasonable Collocation of Rotary Kiln Can Improve the Calcination Quality

Carbon rotary kiln in the thermal status directly affects the quality of material calcined, affect aluminum electrolytic cell sichuan pre-baked anode quality of halo. Relevant research and actual operation experience shows that two or three times the wind volume and its layout in the rotary kiln directly affects the thermal condition, and material calcined quality influence, is affects the q turn furnace material calcined process of east to one of the factors. In Jiao he parameters constant, two, three times for its air duct outlet position must be reasonable collocation, can cause the furnace condition to achieve the best effect, can be helpful for the improvement of the quality of calcination.Along with the high grade iron ore mining continuously to begin to dry up, and the ore prices continue to rise, low grade iron ore and compound symbiosis ore become of great exploitation value, and become the development direction of the future. The experiment USES iron ore mineral composition complex, basically have siderite, limonite, diamond magnetite, all kinds of mineral close symbiosis, hybrid distribution, very fine disseminated extent, the comprehensive quality is low, the ore sorting is very difficult, so use rotary kiln has certain advantages.In some hot rotary kiln, because of with standing the high temperature material corrosion, erosion and abrasion, more use of magnesite chrome brick, magnesium aluminum bricks, high aluminum bricks and so on, these bricks of the thermal conductivity, heat loss of kiln body is large, in order to save energy and prolong the service life of kiln lining, in the build by laying bricks or stones to work outside layer heat insulation brick. These two kinds of brick can only build by laying bricks or stones into two respectively each link of the circle, it could not make kiln masonry form a whole. Lining bricks often is not due to wear and corrosion damage, but due to temperature fluctuations change, make it an uneven shrinkage,...