Introduction to the working principle of a laboratory rotary furnace. During the working process, two types of materials enter at different ports, namely, the material enters from the high-end kiln end of the cylinder, and the fuel is sprayed from the kiln head. As the cylinder tilts and rotates slowly, the material not only rolls in the circumferential direction but also moves axially from the high end to the low end. At the same time, the heat generated by the fuel under the action of wind and coal injection pipes is transmitted from the kiln head to the kiln end, The waste gas generated by the final combustion is exchanged with the materials and exported from the kiln tail. Finally, the generated clinker enters the cooling machine for cooling through the kiln head cover. The process of collision between this heat and the material constitutes the calcination of the material
The laboratory rotary furnace is constantly changing with the combustion composition of the fuel. Rotary kilns can be divided into cement kilns, metallurgical and chemical kilns, and lime kilns according to the different materials processed. Rotary kilns can be divided into cement kilns, metallurgical and chemical kilns, and lime kilns according to the different materials processed. Cement kilns are mainly used for calcining cement clinker, divided into two categories: dry production cement kilns and wet production cement kilns. The metallurgical and chemical rotary furnace is mainly used for magnetization roasting of lean iron ore in steel plants in the metallurgical industry; Chromium and nickel iron ore oxidation roasting; Refractory material factory roasting high alumina vanadium earth ore and aluminum factory roasting clinker and aluminum hydroxide; Chemical plants roast minerals such as chromium ore sand and chromium ore powder. Lime kilns (also known as active lime kilns) are used to roast active lime and light burned dolomite used in steel and iron alloy plants
