What is the filling rate of the rotary kiln?
The fill rate is the percentage of material in the rotary kiln that accounts for the total volume of the kiln. The general rule is that the larger the inner diameter of the kiln, the smaller the filling rate. For example, a rotary kiln with an inner diameter of less than 1 m has a filling rate of 15; and a rotary kiln with an inner diameter of 2.5 m allows a filling rate of only 6. If the filling rate is too large, the heating of the material is insufficient and uneven, which affects the material. The quality of the calcination. If the filling rate is too small, although the material is calcined at a high quality, the rotary kiln yield is lowered. Therefore, it is necessary to select a reasonable filling rate to make the output large and to ensure the quality of the calcination.
The difference between rotary kiln and ordinary shaft kiln:
The application of rotary kiln comes from cement production. The invention of the rotary kiln enabled the cement industry to develop rapidly and also promoted the research of rotary kiln applications. Soon, rotary kiln has been widely used in many industrial fields, and has become more and more important in these products, becoming the core equipment for the production of the corresponding enterprises.
Ordinary vertical kiln is manual feeding and manual feeding or mechanical feeding, manual feeding; mechanical vertical kiln is mechanical feeding and mechanical unloading. The mechanical shaft kiln runs continuously, and its production, quality and labor productivity are higher than ordinary shaft kiln. According to the requirements of the building materials technology policy, the small cement plant gradually replaced the ordinary shaft kiln with a mechanized vertical kiln. In the development of the cement industry, different production methods and different types of rotary kiln have emerged. According to the preparation method of the raw materials, it can be classified into a dry method. Production and wet production, rotary kiln compatible production methods are divided into dry rotary kiln and wet rotary kiln. Due to the different kiln heat exchangers in the kiln, they can be divided into different types of kiln.