A garbage incinerator is a device for incinerating and treating garbage. Garbage is burned in the furnace and becomes exhaust gas, which enters the secondary combustion chamber. It is then burned under the forced combustion of the burner and enters the spray type dust collector. After dust removal, it is discharged into the atmosphere through the chimney. The garbage incinerator consists of four major systems: garbage pretreatment system, incineration system, smoke biochemical dust removal system, and gas generator (auxiliary ignition incineration), integrating automatic feeding, screening, drying, incineration, ash cleaning, dust removal, and automation control.

Garbage incinerator is a harmless treatment equipment commonly used for medical and household waste, as well as animal harmless treatment. The principle is to use the combustion of coal, fuel oil, gas and other fuels to burn and carbonize the object to be processed at high temperature, in order to achieve the purpose of disinfection treatment.

The incineration system is mainly the core process in waste incineration treatment. The equipment currently used in waste incineration projects mainly includes mechanical grate furnaces, fluidized bed incinerators, and rotary incinerators.

incineration system

(1) Furnace body

The furnace body is a cavity built on the upper part of the grate with refractory materials, insulation materials, and thermal insulation materials, wrapped in steel plates to prevent smoke leakage and keep the surface temperature of the furnace body below 50 ℃. There is a maintenance door on the side of the furnace body, and the auxiliary ignition burner is also located on the side. The furnace body is equipped with an operating console.

The flue gas in the furnace flushes the material from bottom to top, drying the moisture in the material and igniting it in a timely manner. In addition, the front and rear arch refractory materials store heat and radiate the material, thereby ensuring the combustion temperature of the material. Extended the residence time of flue gas, caused the combustion of organic matter in materials and fly ash, and improved the destruction rate of harmful substances.

The furnace body is lined with high-temperature refractory materials, with insulation material in the middle and insulation material on the outer layer, which can reduce the heat loss of the furnace body and improve the incineration efficiency; Use steel plates as a protective layer on the exterior to prevent air leakage; The refractory material used is a type of refractory material developed jointly by our company and the Building Materials Science Research Institute, which is resistant to acid smoke corrosion, high temperature, and high strength.

(2) Factors affecting the performance of incinerators

As an incineration system, the most important indicator is the destruction rate of harmful substances in the incineration device, which is mainly affected by the following factors: incineration temperature, retention time, disturbance, and excess air coefficient.