Firstly: Pre- treatment Of Mixed Municipal Solid Waste
Household waste is transported to the entrance of garbage receiving system by special vehicles. After weighed, garbage is discharged into garbage bin for fermenting. In order to stabilize the incineration process, the waste need to be homogenized through distributing and mixing by the grab bucket continuously. Then, the disposed waste is fed into incinerator according to the requirement of carrying capacity.
Secondly: Waste To Energy Incineration Processes
Primary burning air from the top of rubbish bin enters into the combustion chamber. The secondary burning air is drawn out from the outlet of the bag filter. During the normal working of incinerator, waste incineration processes are completed after the stages of drying, burning, and burn-out.
The residue drops into slag machine and is pushed out by hydraulic equipment for corresponding treatment. The heat from fuel burning is absorbed by boiler heating surface. And, after heater, it produces medium temperature medium pressure superheated steam(400℃,4.0MPa) that is induced to turbine &generator unit for generating electricity. Denitrification system inside the incinerator adopts SNCR technology.
Thirdly: The Treatment Of Residuum From Incineration Processes
- Incineration flue gas: through flue gas treatment system (Semi-dry and dry deacidification technology) for purification treatment, flue gas will be discharged into the atmosphere when it reaches the local smoke emission standard.
- Slag: most of the slag is transported to slag reuse center for recycling.
- Fly ash: after solidified, it is transported to landfill for landfill dispose.
- Waste leachate: it is disposed of in waste leachate treatment station. After treatment, it is transported to slag and fly ash disposal system for recycle.
The above are the processes of how to generate electricity from waste. If you have questions about waste to energy plant, contact us now! We will reply you as soon as possible when we get your message.
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Post time: Mar-28-2024