Method and device for garbage processing water recovery and pure carbon production

Abstract

The invention relates to a method and a device for garbage processing water recovery and pure carbon production. The device for garbage processing water recovery and pure carbon production comprises a garbage collection station, a garbage stacking site separator, a pulverizer, a calcium oxide dehydration purification tower, a dividing wall rotary kiln, a tar recoverer, a chemical plant, a waste heat power generation device, a condensed water recoverer, a water reclamation tank, a high temperature deliming device and a grading processing device. Garbage is separated into renewable garbage and non-renewable garbage by the separator, the renewable garbage is pulverized by the pulverizer, the pulverized garbage is sent to the dividing wall rotary kiln, low-temperature destructive distillation is carried out, carbide coke powder after destructive distillation is sent to the high temperature deliming device, and deliming is carried out. Destructive distillation tail gas is subjected to water vapor absorption by the calcium oxide dehydration purification tower, the tail gas after dehydration is sent to the chemical plant through the tar recoverer and processing is carried out. After the destructive distillation tail gas is subjected to deoiling, the product returns to a kiln chamber of the dividing wall rotary kiln, the burnt flue gas enters into the waste heat power generation device and waste heat power generation is carried out. After deliming of the high temperature deliming device, coke powder with an ash amount of less than 0.02% and byproducts of a high boiling point metal and lower boiling point metal mixture are generated.

Description

technical field [0001] The invention belongs to the technical field of waste treatment and recycling, and relates to a process for dry distillation of partition walls, tail gas condensation for water recovery and high-temperature removal of coke powder ash, in particular to a method and device for waste treatment, water recovery and pure carbon production. Background technique [0002] Garbage is solid waste generated in human daily life and production. Due to the large amount of discharge and complex and diverse components, it brings difficulties to treatment and utilization. If it cannot be disposed of in time or improperly disposed of, it will pollute the environment and affect environmental sanitation. my country has surpassed the United States to become the world's largest producer of municipal solid waste. The rapid increase of solid waste has pushed the environmental carrying capacity to the limit. [0003] Urban waste treatment has the effects of reducing pollutant e...

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Problems solved by technology

[0003] Urban waste treatment has the effects of reducing pollutant emissions, regenerating energy, and reducing greenhouse gases. The most widely used waste treatment methods are sanitary landfill, high-temperature composting, and incineration. Each method has its own advantages and disadvantages, but none of them can achieve complete non-toxicity. purpose of detoxification, recycling and reduction

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