Domestic garbage undersize and sludge mixed carbonization treatment system

Abstract

The invention discloses a domestic refuse screen underflow-sludge mixed carbonization treatment system which comprises a refuse refined sorting mechanism, wherein discharge ports of the refuse refined sorting mechanism and a straw granule feed mechanism are respectively connected to a feed port of a three-stage crushing mechanism through a belt conveyer; a discharge port of the three-stage crushing mechanism is connected with a first feed port of a stirring mixer through a belt conveyer; a discharge port of a sludge tank is connected with a second feed port of the stirring mixer through a screw conveyer; a discharge port of the stirring mixer is connected with a press granulator; a discharge port of the press granulator is connected to a feed port of a carbonization furnace through a screw conveyer; a discharge port of the carbonization furnace is connected with a biomass charcoal finished product storage bin through a belt conveyer; and high-temperature hotblast of the carbonization furnace is supplied by a combustion furnace. The system overcomes various defects in the domestic refuse treatment mode in the traditional technique, and implements complete recycling and harmless treatment on domestic refuse.

Description

technical field [0001] The invention relates to the technical field of environmental protection treatment of urban garbage, in particular to a mixed carbonization treatment system of domestic garbage undersize and sludge. Background technique [0002] With the rapid development of my country's economy and industrialization, the scale of cities continues to expand, and the total amount of municipal solid waste is increasing day by day. Most counties and prefecture-level cities in my country are currently suffering from the inability to effectively dispose of domestic waste. Waste disposal has become a huge challenge for China's sustainable development. [0003] At present, there are two mainstream methods for the treatment of garbage and its undersize in various countries in the world: incineration method and landfill method, and auxiliary methods include high-temperature composting method and RDF derived fuel method. However, there are various deficiencies in the above meth...

AI Technical Summary

Problems solved by technology

[0007] ① There is no pre-classification and sterilization and harmless treatment, and a large number of hidden dangers such as bacteria, viruses, and heavy metal pollution have not been eradicated; ② Garbage is piled up for a long time, and the seepage will pollute groundwater resources for a long time. This method is potentially harmful

③It will bring endless troubles

②Long fermentation treatment cycle and large floor area

③ Unable to remove sulfate ions, etc., causing soil compaction and polluting the land. ④ Volatile hydrogen sulfide produced during fermentation will pollute the atmosphere, especially some heavy metal elements in fertilizers will be enriched in the soil and enter the human body with the food chain, seriously endangering human beings good health

② After pyrolysis, a large amount of organic alkanes residues are produced, which brings about secondary pollution of organic alkanes

Not only did it fail to meet people's requirements in terms of harmlessness, but also in terms of resource utilization, it did not tap potential huge resources to achieve resource recycling, but instead brought more negative impacts on the environment

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