Generation of electricity more, self-consumption of electricity accounted for 15-20% of the power generation, each incineration of 1 ton of garbage can be delivered to the local power grid of electricity: 280 degrees.
Each ton of garbage can be incinerated to generate more than 300 degrees, about every 5 people produce domestic garbage, through the incineration of electricity can meet the daily electricity needs of 1 person.
Waste incineration facilities must be equipped with flue gas treatment facilities to prevent heavy metals, organic pollutants and other pollutants from being re-emitted into the environmental medium. Recycling the heat generated by waste incineration can achieve the purpose of waste resource utilization.
Rubbish incineration, generally furnace temperature control at higher than 850 ℃, after incineration than the original volume can be reduced by 50-80%, classified collection of combustible waste can even be reduced by 90% after incineration. Incineration treatment combined with high temperature (1650-1800 ℃) thermal decomposition, melting treatment, can further reduce the volume.
Expanded information:
Gas-control type pyrolysis incinerator will be divided into the incineration process into a two-stage combustion chamber. A combustion chamber for waste thermal decomposition temperature control for 700 ℃ or less, so that the garbage in the absence of oxygen state of low-temperature decomposition, when the metal Cu, Fe, Al and other metal elements will not be oxidized, will greatly reduce the amount of dioxin; at the same time, due to the amount of HCl production due to the lack of oxygen combustion will be reduced.
And in the reducing atmosphere is also difficult to generate a large number. Because the gas-controlled waste incinerator is a solid bed, so there will be no soot, there will be no unburned residual carbon into the second combustion chamber. The combustible components in the garbage are decomposed into combustible gases and introduced into the second combustion chamber with sufficient oxygen for combustion. The temperature of the second combustion chamber is around 1000℃ and the length of the flue enables the flue gas to stay for more than 2s, which ensures that toxic organic gases such as dioxins are completely decomposed and burned at high temperatures.
The process units of a typical municipal waste incineration system include:
1, incoming garbage measurement system;
2, garbage unloading and storage system;
3, garbage feeding system;
4, garbage incineration system;
5, incineration waste heat utilization system;
6, flue gas cleaning and Emission system;
7, ash treatment or utilization system;
8, sewage treatment or reuse system;
9, flue gas emission online monitoring system;
10, waste incineration automatic control system.
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