The detailed details of the domestic waste incinerator from incineration to pyrolysis are first of all pretreatment.
Household waste is first collected and dumped into a waste storage tank. By means of a hydraulic push rod device, the waste is pushed to the incinerator in the elevator. The hoist transports the waste to a sealed device above the first combustion chamber. When the waste in the combustion chamber is burned out, new garbage is thrown into the combustion chamber. The entire pre-treatment process ensures that the waste can be fed into the incinerator evenly and continuously to maintain a stable combustion process.
Incineration process: In the incineration stage, the waste is subjected to pyrolysis under moderate and anoxic conditions in the primary combustion chamber. This process transforms the large volatile molecules in the material from a solid with large particles into a flammable gas with small molecules. These combustible gases then enter the secondary combustion chamber for further combustion.
The secondary combustion chamber is the core part of the incinerator, which usually adopts a vertical structure, and the flue gas adopts a flow mode of up and down in the secondary combustion chamber. The operating temperature is maintained at 850-1000 degrees Celsius to ensure that the harmful substances in the garbage are completely burned and decomposed. At the same time, the design of the secondary combustion chamber ensures the whole negative pressure operation and prevents the leakage of harmful gases. The upper part is equipped with an automatic reset explosion-proof device and an emergency chimney to ensure the safe operation of the equipment.
Flue gas purification process:
The flue gas generated during the incineration process needs to be purified to meet environmental emission standards. The flue gas cleaning system usually consists of a flue gas denitrification system, a quenching acid removal tower, a bag filter and an activated carbon bed. The bag filter has a built-in high-temperature filter bag, which can work in 160-200 environments, and has an automatic back-flush function to ensure efficient dust removal. The purified flue gas is eventually discharged into the atmosphere.
To sum up, the detailed process of domestic waste incinerator from incineration to cracking includes three stages: pretreatment, incineration and flue gas purification. In this process, the garbage is converted into energy and ash, and at the same time, harmful gases and smoke are effectively controlled and purified, realizing the reduction, recycling, and harmless treatment of garbage.