Ecological separation and recovery technology of city household garbage and sewage sludge resource and device thereof

Abstract

The invention discloses an ecological separation and recovery technology of city household garbage and sewage sludge resource and a device thereof, which is a new manner of garbage disposal. The traditional garbage burning is easy to produce dioxins and cause the evaporated liquor of garbage to discharge in air so as to cause atmospheric environmental pollution and resource energy waste. The invention is an exhaust gas closed-cycle system for the technology of garbage drying, vinegar liquor recovery and dry combustion comprising a drying kiln, an evaporated liquor recovery device, a combustion furnace, and the like; the garbage firstly enters the drying kiln for fumigation drying; the evaporated liquor in the drawing smoke is recycled through a condenser and a cyclone and is refined into resource vinegar; the dry garbage out of the furnace is classified and recycle into recycled, combustible and incombustible harmless resources; the combustible dry garbage is input in the combustion furnace for high temperature starved air combustion, and the heated recycle smoke then enters the dry kiln to recycle heat and mass transfer. The green separation technology can inhibit the generation of dioxins, and the resource is completely recycled without discharging smoke and evaporated liquor in air, thereby realizing zero discharge of garbage disposal and resource energy regeneration.

Description

【Technical field】 [0001] The invention relates to a method, process and equipment for harmless and energy-based treatment of urban domestic garbage and sewage sludge (hereinafter, "urban domestic garbage and sewage sludge" is simply referred to as garbage unless otherwise specified). The invention belongs to the technical fields of pollution ecology, green separation engineering, solid waste disposal, municipal solid waste disposal, renewable resources, renewable energy and the like. 【Background technique】 [0002] At present, there are three main methods of municipal solid waste disposal: sanitary landfill, composting, and incineration for power generation. Sanitary landfill requires a large amount of land, and there is leachate leakage and harmful gas emissions, which can easily pollute groundwater and the living environment; composting has basically no development prospects because it is difficult to produce high-quality fertilizers; waste incineration for power generatio...

AI Technical Summary

Problems solved by technology

Therefore, sanitary landfill, composting, and incineration for power generation are not ideal waste disposal methods, and all have their fatal drawbacks

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