Combustion Equipment-Rotary Kiln Incinerators

Traditional design – technology at its roughest – highest flexibility

Rotary kilns are used in the mineral industry for processing of various minerals such as nickel, iron, zinc, vanadium, limestone, expanded clay etc. The rotary kilns are designed for reliable operation in the different processes dealing with high throughputs and high temperatures. thyssenkrupp Industrial Solutions’ rotary kilns reliably fulfil the client’s requirements and are capable of intermittent mechanical and process overloads during normal operation

Brick/Castable Linings

• Most versatile of all incinerator configurations – Can simultaneously handle liquids, solids, sludges and vapors/gases

• Liquids can be fed at multiple points concurrently with use of multiple burners in kiln or SCC

• Containerized solids (i.e., drums) can be fed along with smaller packages while sludges or bulk solids are concurrently fed

• Generally built on a large scale – 50,000 tpy is common

• Extensive support infrastructure needed for successful operations – Not uncommon to require several dozen staff including administrative, technical, operations and maintenance – Waste receiving, air pollution control, solids handling and scrubber water treatment facilities can be elaborate

• Generally configured with large induced draft fan or fans near the stack to assure vacuum is maintained on all upstream equipment

Professional Rotary Kiln Manufacture.pdf

Moving on to rotary kiln incinerators and as discussed in the previous module, these units are extremely versatile and robust. Capable of processing large quantities of a variety of wastes at the same time, these units also require extensive support infrastructure and staffing. Extensive waste receiving facilities are needed on the front end to properly receive, manage and feed the variety and volume of wastes for treatment. In addition, air pollution control systems can be extensive as well, since these units are designed to treat broad range of wastes. This in turn, depending on whether the APC equipment is wet or dry, may require fairly extensive supply (i.e., clean water treatment) and possibly wastewater treatment systems as well. It is not uncommon for units like these to require several dozen staff for round-the-clock operation. Rotary kiln systems also utilize a large induced draft fan, or possibly multiple ID fans to pull flue gases through the entire system and maintain a vacuum on all upstream equipment.