Principle of the Incinerator equipment is incineration/combustion/burn. Generally, the function is waste treatment for Solid waste, Liquid waste, Gas waste, etc.
The main body is one combustion chamber (at least), Refractory line or firebrick, Insulation materials and the outer plate. Ignition element is external oil or gas burner. The burner can be sloutherhouse waste incineration lt, small 20kg incinerator, small a animal crematory equipment prices, small animal crematorium manufacturers, running until waste burnout but for some waste like plastic, paper (sometime, mix coal with waste before feeding), they can combustion itself after Ignition. During combustion, burner has a fan itself for Oxygen supply and also protect burner avoid heat damage from combustion chamber. And, there a external fan blow air into combustion chamber. The Exhaust gas blow out after combustion.
Considering Environmental Protection requirements and rules, almost all incinerator have secondary combustion chamber (after-burn, post-combustion), even if third combustion chamber. The secondary burner burn the Exhaust gas from primary combustion chamber, this technology make sure sufficient combustion, few black smoke and smell.
The updated incinerator technology focus on Exhaust gas treatment to remove Hazardous material and other function from incinerator, like heat recovery (waste to energy), save fuel cost, PLC Automation operation.
In some Developed countries, some new waste treatment method like High-temperature cooking, waste carbonization, crushing sterilization technology is instead of incineration technology.