Description

1.Rotary kiln introduction:
A rotary kiln, which is also called a rotary calcine kiln, is a commonly used building material machine.Classifying by material properties, a rotary kiln falls into cement kilns, metallurgy chemical kilns, and lime kilns.This article mainly introduces the difference between the metallurgy rotary kiln and the lime rotary kiln.

2.The Description of the Metallurgy Rotary Kiln: 
Metallurgy rotary kiln is composed of cylinder, gears, support device, kiln liner and kiln tail sealing equipment, kiln head hood and combustion. Cylinder as heated pivoting part, made of high-quality carbon steel plate, is supported on the support device by type, and there is machinery or hydraulic pressure catch wheel on the first or some gear in order to control the turning of cylinder. Gearing gyrate is according to process-required rotating speed by ring gear in the middle of cylinder. Because of the need of installation or maintenance, the bigger metallurgy rotary kiln has auxiliary gears, which makes cylinder gyrate more slowly. To prevent cold air come in and dust overflow,the reliable kiln tail and head sealing equipment is installed on feed and discharge end.

3.Rotary kiln Working principle:
The kiln is a cylindrical vessel, inclined slightly to the horizontal, which is rotated slowly about its axis. The material to be processed is fed into the upper end of the cylinder. As the kiln rotates, material gradually moves down towards the lower end, and may undergo a certain amount of stirring and mixing. Hot gases pass along the kiln, sometimes in the same direction as the process material (cocurrent),but usually in the opposite direction (countercurrent). The hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. Such a flame is projected from a burnerpipe (or "firing pipe") which acts like a large bunsen burner. The fuel for this may be gas, oil or pulverized coal.