Rotary kilns are an essential component of many industrial process systems, which means that maintaining and protecting them is extremely important. A properly maintained rotary kiln will assist with process efficiency and will help to extend equipment life–which means steering clear of costly repairs. When they’re taken care of the right way, most rotary kilns have very little downtime.
However, because of the demanding conditions of the inside of a rotary kiln, there are certain things that can wear down and cause issues. Let’s take a look at a few of these.
Refractory Degradation or Damage
In order to operate efficiently, a rotary kiln depends quite a bit on its refractory liner. This maintains the kiln’s proper interior temperature and protects the kiln’s shell from those high temperatures. However, these liners can degrade over time, and may cause the kiln to lose efficiency. There’s also the risk of thin or damaged areas becoming distorted by heat. In order to detect these weaknesses before they become problems, a qualified technician should perform routine inspections in order to make repairs or replacements as necessary.
Burner Replacement or Maintenance
Even with high quality burners, some parts–like the nozzle, cone, or sensors–may need to be replaced. For older rotary kilns, a burner upgrade may be necessary. Burner technology is always improving, and so it may be worth looking at upgrading if it means greater efficiency and production.
In many ways, rotary kilns are very similar to other rotary drum equipment, which means that some of the same preventative maintenance procedures can be used. Some maintenance that should be done includes:
- Lubrication of bearings
- Rechecking backlash
- Changing gear box oil
There are also things that should be done by a specialist, including annual inspections, spare part installations, tire and wheel grinding, and more.
Interested in Partnering with ProcessBarron?
We can help you perform routine maintenance, replace worn-out parts, and keep your plant up and running. Contact us today for more information.