Sludge power generation and incineration treatment system

Abstract

The invention relates to the field of sludge treatment equipment, in particular to a sludge power generation and incineration treatment system. The sludge power generation and incineration treatment system comprises a sludge fermentation pool, a marsh gas purifying and compressing device, a heat machine, an electric generator, a drying machine, an incineration furnace and an afterheat boiler, wherein the sludge fermentation pool comprises a fermentation pool sludge inlet, a fermentation pool sludge outlet and a fermentation pool marsh gas outlet; the marsh gas purifying and compressing devicecomprises a gas storage cabinet, a gas and liquid separator, a compressor, a desulfurizing device, a decarbonizing device and a pressure swing adsorption device which are connected mutually and sequentially; the drying machine is provided with a drying machine sludge feeding opening, a drying machine sludge discharging opening, a steam inlet and a condensed water inlet; the incineration furnace comprises an incineration furnace sludge feeding opening, an air inlet, a slag discharging opening and an incineration furnace smoke discharging opening; the afterheat boiler is provided with a water inlet, a steam outlet, an afterheat flue gas inlet and a boiler smoke discharging opening. The device provided by the invention is high in marsh gas utilization rate and marsh gas purity, safe, and reliable.

Description

technical field [0001] The invention relates to the field of sludge treatment equipment, in particular to a sludge power generation incineration treatment system. Background technique [0002] Sewage treatment plants will produce sludge in the process of sewage treatment, and the sludge needs to be incinerated after being dehydrated by dehydration equipment, and discharged after meeting the requirements of reduction and harmlessness. Most of the existing sludge incinerators use a fluidized bed incinerator to incinerate the sludge and then discharge it. However, the sludge will generate a large amount of methane during fermentation in the fermentation tank. If it is directly discharged into the air, it will not only affect the air quality , and may cause hazards such as explosion. Now there is also the recovery of biogas for power generation or use in kitchens, but the existing biogas reuse systems are generally equipped with sludge fermentation tanks and biogas tanks, and t...

AI Technical Summary

Problems solved by technology

Most of the existing sludge incinerators use a fluidized bed incinerator to incinerate the sludge and then discharge it. However, the sludge will generate a large amount of methane during fermentation in the fermentation tank. If it is directly discharged into the air, it will not only affect the air quality , and may cause explosion hazards

Now there is also the recovery of biogas for power generation or use in kitchens, but the existing biogas reuse systems are generally equipped with sludge fermentation tanks and biogas tanks, and the biogas generated in the sludge fermentation tanks is introduced into the biogas tank for storage. , this kind of system not only takes up space but also the biogas will contain a lot of impurities such as carbon and sulfur without purification treatment, which will not only affect the efficiency of power generation when it is reused, but also if it is used for kitchen fire, it may be difficult to start a fire or The fire was put out halfway, causing an accident

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