Rotary kiln plays an important role in cement production line as a building material equipment for calcining limestone and other materials. Everyone is familiar with rotary kiln. But in fact, there are many types of rotary kiln shell or rotary kiln cylinder, do you know? As a rotary kiln supplier, AGICO CEMENT has the ability of manufacturing direct-fired rotary kilns and indirect-fired rotary kilns applied for cement, chemical, mineral and other fields. We know rotary kiln and reltaed kiln parts well, so let’s give you a full introduction to rotary kiln shells.
It is understood that there are four main types of rotary kiln shell, including straight cylinder type, hot end expansion type, cold end expansion type and both end expansion type.
The straight rotary kiln cylinder has a simple structure, less variety of refractory bricks and accessories, and is easy to manage and maintain; however, the thermal efficiency is low and the output is lower than that of the enlarged kiln.
Hot end expansion type
The hot end expansion type rotary kiln shell increases the heat transfer area of the rotary kiln, improves the heating capacity of the rotary kiln, and can achieve the purpose of increasing the output. But just like other things, hot-end enlarged cylinder has only advantages. In fact, it also has disadvantages. For example, if the combustion zone is enlarged too much, the pre-burning ability will be insufficient during the production process, which will increase the heat loss.
Cold end expansion type
The expanded cylinder at the cold end will increase the preheating capacity of the kiln, and the wet rotary kiln can also hang more chains to reduce the tail temperature, reduce the wind speed of the tail air, reduce the wind loss and improve the utilization rate of waste heat. After the expansion of the cold end of the dry kiln It is also advantageous to connect with a preheater.
Expanded at both ends
The effect of the enlarged cylinder at both ends is better than that of the enlarged cylinder at one end, which can not only improve the preheating capacity, but also improve the calcining capacity, it will bring great benefit to the improvement of production quality. However, the common disadvantage of the enlarged rotary kiln is that thekiln shell is complicated to manufacture, the required refractory bricks and accessories are many varieties and specifications, the maintenance is inconvenient, and the management is more complicated.
Several different forms of rotary kiln shell will have different effects on the production and use of rotary kilns, and different structures have their own advantages and disadvantages. AGICO CEMENT hopes that users and friends can have a deep understanding of the differences between several different types of rotary kiln shell. Choose suitable the rotary kiln equipment accoring to real needs. If you have any questions about the selection and use of the rotary kiln, you can also call us directly, and we will provide you with more useful information.