Method and system for drying high-temperature waste gas aerobe in urban raw refuse

Abstract

The invention provides a method and a system for drying high-temperature waste gas aerobe in urban raw refuse. High-temperature biological modifiers are involved in modification for the aerobe in the urban raw refuse, oxygen provided by mixed outdoor fresh air and a high-temperature environment provided by high-temperature waste gas are used for decomposing organic matters in the urban raw refuse into water and other inorganic matters, heat is released, most of the water is heated and evaporated into water vapor by the aid of the high-temperature environment and the heat and then is discharged in the form of damp and hot waste gas, and accordingly, the aerobe in the urban raw refuse is dried. The system comprises an urban raw refuse aerobe drying bin, an air feeder and the like. Further optimization can be realized by methods and systems for automatic control, photocatalytic sterilization deodorization and the like. Owing to the high-temperature waste gas, the organic matters in the urban raw refuse are higher in decomposition degree, larger in water evaporation amount, shorter in drying process and more remarkable in drying effect, and the refuse can be reduced and harmlessly and stably disposed.

Description

technical field [0001] The invention relates to the technical field of domestic garbage treatment, in particular to the garbage drying process in the production of refuse derived fuel (RDF), specifically a method and system for aerobic biological drying of urban domestic garbage. Background technique [0002] my country's garbage has not been completely sorted from the source. The proportion of kitchen waste in urban domestic garbage is large, and its moisture content and organic matter content are high, which is not conducive to the harmless, reduction, stabilization, and recycling of garbage. [0003] The high moisture content makes the raw garbage difficult to sort and break, especially unfavorable for the use of all mechanical garbage sorting equipment, resulting in the misery of garbage recycling and reuse. [0004] The high content of organic matter causes the biochemical properties of the garbage to be unstable, and a large amount of leachate and rancid gas are produc...

AI Technical Summary

Problems solved by technology

[0006] Steam decomposition, mechanical dehydration and other technologies are used to dry waste. First, it needs to provide fuel for steam production or electricity and other disposable energy to generate power, which is a waste of energy. Second, some steam drying technologies use incineration and waste derivatives. Products, etc. produce steam, and flue gas treatment after incineration is a very important link. The investment and operating costs of treatment equipment are relatively high, and problems such as re-pollution caused by incomplete incineration or incomplete flue gas treatment often occur.

[0007] At present, the garbage biological drying method is generally used at home and abroad to remove most of the water

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