Refuse derived fuel sorting system and method

Abstract

The invention discloses a two-level multiple sorting system and method for making garbage-derived fuel, belonging to the field of garbage-derived fuel production. The system includes a double-deck drum screen, a three-time winnowing device, and a micro-negative pressure visible clean room. The feed inlet of the double-layer drum screen is used to introduce waste paper, waste rubber and plastic products, waste textiles, sawdust and other high calorific value residual garbage, soda lime, and the larger and heavier impurities at the outlet of each layer of the drum are combined with the heavier impurities. The light material is transported to the inlet of the winnowing device through the conveyor belt, and the heavy material outlet of the winnowing device is transported to the inlet of the winnowing device through the pipeline under the action of the supplementary fan, and the light material outlet of the winnowing device is used as Export of combustibles. The micro-negative pressure visual cleaning room is placed on the periphery of the entire sorting system. It is used in the process of making waste-derived fuels. It cooperates with drum screens, winnowing devices, and deodorizing devices. It has high operating efficiency and good sorting effects. It can form An efficient and environmentally friendly sorting system.

Description

Technical field [0001] The invention patent relates to a garbage-derived fuel sorting system and method, specifically a two-stage multiple sorting system and method for making garbage-derived fuel, and belongs to the field of garbage-derived fuel production. Background technique [0002] Based on the method and experience of European domestic waste classification, the source classification method of municipal domestic waste is proposed. That is to say, municipal solid waste is divided into two categories: combustible waste and biodegradable waste (biological waste). Among them, biological waste can be processed by anaerobic digestion or hydrolysis to enter the sewage treatment plant to provide carbon source for sewage treatment; combustible waste group For example, waste paper, waste rubber and plastic products, waste textiles and combustible higher calorific value industrial waste or sludge are mixed to produce refuse-derived fuel RDF. This not only better solves the problem of...

AI Technical Summary

Problems solved by technology

In the prior art, the known sorting process for extracting combustibles from waste paper, waste rubber and plastic products, waste textiles, sawdust and other high calorific value residual garbage and soda lime involves one-time sorting, and does not achieve pollution-free work. environmental requirements

The disadvantage of this method is that the sorting efficiency is low, it is not easy to separate the required high-calorific value garbage components, and the impurities cannot be further removed, and the reliable operability of the materials cannot be guaranteed, resulting in impurities in the finished RDF product, and may also lead to the failure of combustibles. Being fully utilized, polluting the working environment

Images