Household garbage comprehensive treatment method and system

Abstract

The invention discloses a household garbage comprehensive treatment method which comprises the following steps: pretreating collected garbage, feeding the garbage into a dish-shaped sieve for screening, feeding the garbage into an astrolabe sieve, a photoelectric sorting machine and an intelligent screening part for screening, feeding sorted residual materials into a pyrolyzing furnace for decomposing, and feeding the pyrolyzing furnace into a drying room for drying. A household garbage comprehensive treatment system used for the household garbage comprehensive treatment method comprises a feeding component, a primary screening component, an intelligent screening component and a pyrolyzing furnace, the feeding component comprises a rough crushing machine and a material distributing machine, an outlet of the material distributing machine is communicated with an inlet of the rough crushing machine, and the primary screening component is connected with the intelligent screening component. The primary screening component is used for primarily screening the garbage, the intelligent screening component can identify different types of garbage and sort out the garbage, the pyrolyzing furnace is used for pyrolyzing the garbage which cannot be recycled, and the garbage recycling and harmless treatment system can fully recycle and harmlessly treat the garbage and can be suitable for environments such as villages and towns and rural areas.

Description

technical field [0001] The invention relates to the technical field of domestic waste recycling, in particular to a comprehensive treatment method and system for domestic waste. Background technique [0002] According to statistics, in 2020, the national municipal solid waste removal volume will reach 235 million tons. Such a large amount of domestic waste must be properly disposed of, otherwise it will not only pollute the environment, but also cause waste of resources. At present, most of the treatment processes for domestic waste It includes the following types: 1. Sanitary landfill method. The sanitary landfill method is to bury solid waste to a certain thickness in a selected appropriate place, add covering soil, and let it go through physical, chemical and biological processes for a long time. The effect is stable, it has a large processing capacity, a wide range of applications, and is not affected by changes in garbage composition; it is not affected by weather condi...

AI Technical Summary

Problems solved by technology

The disadvantage is that if the domestic waste is not classified, the heavy metal content of the biocompost will directly lead to excessive heavy metal content, which cannot be used for agriculture; the remaining waste is directly incinerated, not only the waste heat is not used, but the untreated incineration flue gas will also pollute and destroy the atmospheric environment

Although the above-mentioned domestic waste disposal methods are effective methods that have been verified by long-term practice, most of these waste disposal methods are designed for cities with high concentration, and are not suitable for rural areas with backward economic conditions and high dispersion of residents. Locations, such as incineration treatment technology, although the requirements for the size of the site are not high, but the requirements for the treatment methods are relatively high, and the local economic conditions and treatment capabilities are required. The economic conditions in rural areas are obviously not suitable for it. Another example is the sanitary landfill method. Although the rural area has a vast land that can be used for landfill, the residents are highly dispersed, resulting in excessive cost of centralized transportation of waste, and it is also not suitable for rural environments.

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