For the lime Rotary Kiln by burning limestone quality testing, the actual production are a variety of methods such as abrasion test, the crystal structure observation was calcined experiments, the size and physical characteristics of the composition and hardness of the mineral particle size of limestone and also lime kiln calcination of raw materials are selected important factors. During operation of the lime kiln, limestone quality level of quality for the active substance produced by the burning of lime have a great impact, so we have great importance for the quality of limestone detection and analysis, so as to it does not affect the normal operation of the lime kiln. But the most important test methods for chemical analysis or test method that is the whole analysis. The main object detection analysis of the full analysis of a variety of substances are calcium oxide, magnesium oxide, sulfur, phosphorus, silica and other indicators. Oxide content of impurities present in the limestone surface potassium and sodium is relatively small, however, the melting point of oxides or other compounds through this small portion of the reaction are formed particularly low, which is formed in the rotary kiln One of the factors knot ring. How much water within the limestone, calcined lime did not affect the results. Only good control of the moisture control to be able to stabilize the thermal efficiency. More critical in the preheater, adhesion or to avoid bottle material phenomenon occurs when too much water. Limestone from the inside surface of the rotary kiln calcination, the limestone is more and more color, more common is gray and black, gray, white and scarlet, etc., and in general cognitive among the better physical properties of limestone , its color is gray-black surface is usually based. From the limestone nature in terms of how much calcium limestone color, and its surface is not fundamentally linked. Axial rotary kiln is also relatively large rate of decline, reaching 200mm / h or so. Axial movement of the moving range of the rotary kiln, the operation speed needs to be controlled. Rolling ring, roller, ring gear, width, and kiln, kiln pinion seal device, allowing axial movement of the cylinder length is limited, excessive axial range of motion will fail these working parts, the moving amount is too small, the same supporting roller surface in the shoulder, so that the kiln can not freely expand and contract during temperature changes. Due to thermal expansion and contraction in the cylinder axial extension and retraction has the characteristics of a cold state when the state when a larger elongation, requires supporting wheel rolling circle than wide, otherwise it will cause rolling ring from care not enough serious consequences wheel or bearing surfaces, generally supporting wheel rolling circle wider than the 40 ~ 60mm look, in this case, if the kiln body by limiting gear wheel in the axial rotation in a fixed position, will lead to rolling ring and supporting roller surface for excessive wear, in a fixed position supporting wheel surface abrasion shoulder, shoulder grooves rolling ring caught riding wheel surface. When the kiln to stop the kiln maintenance, kiln body becomes cold, cold shrink tube characteristics needed retraction. It is caught in the shoulder slot supporting wheel's rolling ring, the axial movement or destruction of the entire device is made to rent in the cylinder. So when the kiln work, requiring slow down the axial movement of the cylinder, to avoid uneven wear caused occasional round surface. In addition, the axial movement of the rotary kiln body prevents axial forces supporting roller bearings and gear wheels of long-term unilateral force, thus improving the work of these components under load.