Detailed Explanation of the Complete Waste Incineration Process
Traditional high-temperature waste incineration is a mainstream harmless solid waste disposal technology, with a complete process divided into four core stages: waste pretreatment, feeding and incineration, flue gas purification, and ash residue treatment. The whole system realizes waste reduction and harmless treatment relying on high-temperature combustion at 850℃ to 1100℃. Firstly, domestic waste is transported to the plant, weighed and unloaded into the waste storage pit. After 5-7 days of natural fermentation, the waste removes excess water to increase calorific value, and odor gas is recycled into the furnace to avoid air pollution.The pretreated waste is sent to the incinerator by a grab crane.
On the mechanical grate, the waste undergoes four procedures: drying, pyrolysis, high-temperature combustion and burnout. The continuously operating grate turns and pushes the waste to fully mix with combustion-supporting air. Organic waste is cracked and burned in the high-temperature furnace, and unburned flue gas enters the secondary combustion chamber for complete combustion. This process requires continuous fuel-assisted combustion, resulting in huge energy consumption, and the high-temperature environment easily produces toxic dioxins and heavy metals.
The high-temperature flue gas generated by incineration is cooled through a waste heat boiler, then enters a complex flue gas purification system including denitrification, desulfurization, activated carbon adsorption and bag dust removal to eliminate exhaust pollutants, dust, heavy metals and residual dioxins before chimney emission. Finally, furnace slag and fly ash are collected and solidified. Due to complex equipment, high operation costs and potential pollution risks, traditional incineration is gradually replaced by low-temperature magnetic gas thermal decomposition technology.
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