A new type of drum screen has been developed to address the problem of high humidity and difficult screening of landfill waste in China. It adopts multi-stage sorting to reduce equipment failures and improve sorting efficiency. The improved comprehensive sorting and regeneration system for aged garbage saves 80% in manpower investment compared to traditional equipment; The replacement of vulnerable parts is simple and convenient, the price of parts is low, and the overall operation and maintenance costs are significantly reduced.
The aged garbage sorting system mainly includes equipment such as drum screens, air separators, and iron removers. After entering the site, the garbage is first screened by a drum screen, dividing the material into larger particles on the screen and smaller particles on the screen. The undersized material is humus soil, and the undersized material is further divided into heavy and light substances by air separation equipment. The light substances are mostly waste plastics, while the heavy substances are humus soil and construction debris (which are then removed by iron removers to remove iron and metal).
Advantages of the plan:
1. Reducing garbage can obtain land resources, enable the reuse of landfills, and increase their service life. By implementing a comprehensive waste management process, reducing waste capacity, restoring landfill ecology, and facilitating secondary development of the original land. In the context of increasingly scarce land resources, the treatment of aged garbage from landfills has great market potential.
2. Garbage recycling and utilization. Vegetable market kitchen waste with high moisture content in household waste is more common, while aged waste that has been degraded for many years has low moisture content, high calorific value, and high value. Most aged garbage can be recycled after classification, and plastic waste can be directly packaged and sold or further processed; Metal ferromagnetic materials can be directly sold after recycling; The remaining parts are mainly fabric combustibles, which can be used for incineration power plants; Humus soil can be used for landscaping and greening; Inorganic harmless backfilling with bricks and stones.
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