Rotary calciners have a technical name – they are often called rotary kilns.
So what exactly are rotary calciners/kilns?
Well, as per the opinion of an expert associated with a leading company that offers rotary calciner services, a rotary calciner is used to heat a material, (a solid in most, if not all cases) to a temperature that is predetermined by technicians working in an industrial environment.
The goal of heating a material to a predetermined temperature is simple – to start a physical or chemical reaction.
Rotary kilns are of two types. They are as follows:
- Direct fired rotary kilns
- Indirect fired rotary kilns
The latter finds extensive applications in the mineral processing sector, the agriculture sector as well as in the material processing sector.
With that stated, it is time to take a closer look at some of the basic applications of a rotary calciner.
Please pay attention to the following sections:
It is used in the production of commodity materials
Companies that are associated with the production of traditional commodity materials like raw minerals or agricultural products. Companies that produce such products rely heavily on rotary calciners since, without it, their manufacturing process would come to a grinding halt!
It is also used in the removal of water molecules from gypsum
Rotary calciners help in the efficient removal of water molecules that are chemically bound to finely ground gypsum particles.
This removal of chemically bound water molecules from finely ground gypsum can be carried out by a rotary calciner using two distinct processes –
- Directly heating the finely ground gypsum
- Indirectly heating the finely ground gypsum
It is also the primary industrial equipment that helps in reclaiming nickel
Rotary calciners are also the primary industrial equipment that are used to reclaim nickel – a valuable mineral; that finds extensive application in the fabrication of electronic goods, from electronic waste.
Many companies are using rotary calciners to recycle electronic waste and reclaim nickel by generating high temperature thus eliminating unnecessary material from the e-waste, in the process.
Using a rotary calciner to reclaim nickel from e-waste is a great, efficient and innovative way to prevent toxic materials from entering into the environment and wreaking havoc to the same.
It is also used by proppant manufacturers
What is proppant?
Well, proppant is the material that is used to support hydraulic fracturing. A proppant is made using treated sand. It can also be made using ceramic – an artificially made material.
Companies that manufacture proppants use the high temperature and the rotary motion of a rotary calciner (or kiln) to sinter proppant powder. Post-sintering, thanks to the rotary motion of the calciner, the powder gets transformed into ceramic beads – the finished phase of proppant.
It is evident by now that rotary calciners enjoy an important position among all known types of industrial heavy equipment. With that stated, a business needs to ensure that the rotary calciner they have in their industrial complex are operating properly and efficiently. If that is not the case then the chances of a sharp drop in the overall quality of finished products are pretty high. To be on the safe side of things, a business should subject its rotary calciners to periodic maintenance sessions.