Henan Beigong garbage incineration system process mainstream briefly
1), the waste material by the hydraulic pusher conveyor into the rotary kiln head, the material flows downward to the kiln tail.
2), the material is incinerated under the action of combustion aid, the flue gas produced by the rotary kiln enters the secondary chamber, and the ash produced by incineration is automatically discharged by the wet scraper.
3), incineration of flue gas in the secondary combustion chamber by natural gas combustion further high-temperature incineration, combustion temperature increased to 1100 ℃ -1200 ℃, so that the incineration is more complete, to achieve the effect of no smoke, no odor, no secondary pollution.
4), the second combustion chamber out of the flue gas into the waste heat hot water heat exchanger, heating soft water for the production process.
5) The flue gas from the waste heat hot water heat exchanger enters the semi-dry rapid cooling tower. By spraying water cooling to control the temperature in 1s quickly reduced to about 200 ℃, thus effectively inhibiting the regeneration of dioxin.
6), then the flue gas enters the dry acid removal and dioxin absorption device to further purify the exhaust gas. The role of slaked lime spraying is to remove the acidic components such as HCl and SOx in the absorbed flue gas, and the role of activated carbon is to adsorb and remove a small amount of residual dioxin furans in the flue gas.
7), the exhaust gas into the air box type bag filter to remove the flue gas retained in the fine dust. When the inlet temperature of the bag filter is not within the limit, the bag bypass solenoid valve opens and the flue gas enters the chimney by bypass to ensure that no fatal damage is formed to the bag when the flue temperature is abnormal.
8), from the bag filter out of the flue gas into the spray scrubber tower and wet packing scrubber tower device.