INTRODUCTION LIST
garbage sorting has always been the bottleneck of waste treatment technology. Whether it is incineration, landfill treatment or comprehensive treatment process, many failure cases are due to incomplete waste sorting, resulting in the inability to process the next process and the entire production line. normal operation.
Categories: Inorganic, Ferromagnetic, Organic
Slogan mixing is garbage, classification is resource.
Contents
1 Technical bottlenecks
2 Sorting system
3 Process flow
4 Market analysis
5 Summary
Technical bottleneck
The garbage sorting system is the core of the technology. This system adopts uniform waste feeding, large-size waste automatic sorting system, large-size waste crushing system, bagged waste automatic bag breaking, large organic matter automatic crushing system, and fully enclosed mechanization. After air treatment system, plastic water separation system, high temperature and high pressure hydrolyzed hydrothermal oxidation "hot separation" system for organic matter, municipal solid waste can be sorted into: 1: inorganic matter; 2: sandy soil; 3: organic matter Class 4: Non-recyclable combustibles (if supplemented by simple manual sorting, rigid plastics and rubber can also be separated) 5: Thin film plastics 6: Ferromagnetics;
The sorting purity of the above wastes can reach 85% or more, and the purity of thin film plastics can reach more than 90%, laying a solid foundation for the "recycling and industrialization" of waste processing in the next step.
Mixing is garbage and classification is a resource.
Sorting system
Closed, mechanized waste sorting system
The pre-treatment system can sort the municipal solid waste after processing through processes such as uniform waste feeding, automatic large-scale waste sorting system, automatic waste stripping of bagged waste, automatic crushing of large organic matter, and fully enclosed mechanized air separation system. : Inorganic materials; organic materials, sandy soil; non-recyclable combustible materials; thin film plastics; ferromagnetic materials.
The above wastes can achieve a purity of more than 85%, and the separation rate of film plastic waste can reach more than 90%, laying a solid foundation for the "recycling and industrialization" of waste processing in the next step, and can also make waste The incineration volume is reduced by nearly four-fifths. There is no need to add coal or oil injection. The waste heat generated by the incinerator is provided to the hydrolysis tank to treat organic matter, and the waste is used to treat the garbage. The operating cost savings are considerable.
Process flow
Domestic garbage is transported by garbage trucks. After the platform weighs too much, the garbage trucks enter the garbage truck's rotary workshop to discharge the garbage in the temporary storage room of the garbage, and spray deodorant while discharging. The material is fed to the uniform feeder by the bridge-type double-beam, and the material is conveyed to the large garbage sorter by the uniform feeder. The machine can separate all the large pieces of garbage (sorting rate 99%), separate more than 90% of the sand and soil in the garbage, and 25-35% of organic waste, and it can also remove larger bags. Load more than 90% of the broken bag, and the rest can handle the garbage going to the broken bag crusher. This machine can open all the unopened garbage in the garbage, break up the debris stuck on the plastic, and break the organic matter with a particle size larger than 60mm to less than 600mm.
The rubbish treated by the belt breaking crusher naturally falls to the integrated air separator and meets the flat air flow after rectification. According to the principle of different specific gravity, different falling points, different particle sizes and different components of the garbage after crushing, the municipal solid waste can be separated into ferromagnetic materials (including batteries) through the air separation device, particle separation device and magnetic separation device. , Organic matter, non-recyclable combustibles, film plastics, etc.
The main treatment methods after garbage classification
(1) Organic matter waste is hydrolyzed and hydrothermally oxidized to make fertilizer or dried by incinerator tail gas before incineration.
(2) Sandy soil waste, nutrient soil improved after natural fermentation.
(3) Plastics, recycled or made plastic products or refining heavy oil;
(4) Ferromagnetic materials are mainly recycled;
(5) Non-recoverable combustibles, incineration;
(6) Landfill or brick making of inorganic waste.
Main characteristics of processing technology
(1) Fast: The same day garbage will be processed on the same day to reach Nissan and Nissin.
(2) Harmless: fully enclosed operation, so there is no odor overflow; fast processing, less leachate generation.
(3) Small floor area: one quarter of the compost method and one sixth of the landfill method.
(4) High degree of resource utilization and industrialization: Because the previous sorting and classification are thorough, all recyclable materials are recycled, while reducing the amount of incineration and the amount of waste generated (reduction of nearly four-fifths).
(5) The prospect of the ecological organic fertilizer market is good: fertilizers must be used for green products.