Sorting system and sorting method for collaboratively disposing urban household garbage by aid of cement kilns

Abstract

The invention discloses a sorting system and a sorting method for collaboratively disposing urban household garbage by the aid of cement kilns. The sorting method particularly includes sequentially conveying the to-be-sorted garbage in an unloading bin through a plate feeder and a homogenizing machine, then conveying the to-be-sorted garbage to a first crushing machine, and conveying crushed materials to a drum screen; conveying oversize products sieved by the drum screen through a magnetic separator I to sort out magnetic materials, crushing the remaining non-magnetic materials by a second crushing machine, then feeding the remaining non-magnetic materials into a star disc sieve I, feeding oversize products sieved by the star disc sieve I into compression and dewatering equipment to be used as combustible raw materials, and feeding undersize products sieved by the star disc sieve I into undersize product winnowing equipment II; conveying undersize materials sieved by the drum screen through a magnetic separator II, then feeding the undersize materials into an undersize product star disc sieve II, feeding oversize products sieved by the star disc sieve II into oversize product winnowing equipment I, and feeding undersize products sieved by the star disc sieve II into the undersize product winnowing equipment; compressing and dewatering light components obtained after winnowingis carried out, then feeding the light components used as combustible portions into a firing system, using heavy components obtained after winnowing is carried out as incombustible portions to participate in preparing cement production raw materials.

Description

technical field [0001] The invention relates to a sorting system for utilizing cement kilns to co-process urban domestic garbage, and belongs to the technical field of combining cement production and urban domestic garbage treatment. technical background [0002] With the development of society and the continuous enhancement of people's awareness of environmental protection, municipal solid waste disposal has become a hot spot of widespread concern worldwide. At present, the treatment methods of municipal solid waste mainly include landfill, composting and incineration. The landfill method occupies a large amount of land and has a low degree of resource utilization, which is likely to cause secondary pollution; the composting method has a long cycle, unstable quality, and is likely to cause soil compaction and pollute groundwater; the incineration method can achieve reduction, harmlessness and resource utilization , has become the main development direction of urban domestic...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a sorting system that utilizes cement kiln to co-process municipal solid waste. Solved the problems of incomplete sorting of domestic waste and low utilization rate of resources in the prior art

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