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Biological / mechanical technique for preparing high quality refuse derived fuel

A garbage-derived fuel, high-quality technology, applied in the direction of biofuel, waste fuel, fuel, etc., can solve the problems of high cost and difficulty, and achieve the effect of reducing drying cost, easy to break and disperse, and reduce breakage

Active Publication Date: 2013-05-01
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

However, the mixed collection of domestic waste in my country, including a large number of high-moisture and complex components including kitchen waste, makes it very difficult and costly to directly prepare RDF from domestic waste in my country.

Method used

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  • Biological / mechanical technique for preparing high quality refuse derived fuel

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Experimental program
Comparison scheme
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Embodiment

[0025] According to this process flow, it is possible to build a new waste-to-high-quality derivative fuel plant or to use the waste receiving system and flue gas waste heat in an existing waste-to-energy plant to add new ones, which is more cost-effective. figure 1 Equipment layout and installation are required. Garbage is directly poured into the biological drying pool by the municipal transport vehicle for biological drying 1. The biological drying pool has 4 independent units. After each unit receives a certain amount of garbage, it stops receiving the function and transfers to the biological drying process. New To garbage is received by the next unit.

[0026]Biological drying process, using the filtrate containing Thiobacillus ferrooxidans, Leptospira ferrooxidans, Pseudomonas acidovorans and Dehalogenobacter ethylene-producing bacteria to leaching and ventilation accelerated drying of garbage, four types of bacteria According to the concentration ratio between 4:2:1:1 ...

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Abstract

The invention discloses a method for preparing high quality refuse derived fuel. The method comprises the following steps: biological drying, coarse crushing, first magnetic separation, riddle, sorting, hot air drying, fine crushing and shaping. A biological and mechanical coupling technique is employed to achieve source tempering of household refuse, substantially reduce harmful components in the refuse, increase calorific value, reduce the preparation cost on RDF, and realize more industrial application value. The method provided by the invention has a variety of effects and advantages, can prepare refuse derived fuel with high calorific value and low pollution at low thermal power and improve stability and applicability of the whole system, conforms to the requirements of sustainable development, conserves resources and protects environment.

Description

Technical field: [0001] The invention relates to the technical fields of environmental protection and energy, in particular to a method for preparing high-quality garbage-derived fuel. Background technique: [0002] In 2010, my country's municipal solid waste removal volume reached 158 million tons, of which 23.167 million tons were disposed of through incineration, accounting for 18.8% of the harmless disposal volume. Waste incineration power generation technology can quickly achieve efficient volume reduction (90%) and weight reduction (80%). The heat generated by incineration can generate steam for power generation or heat supply to realize heat utilization; at the same time, the incineration disposal technology occupies less land and has a long service life. Waste incineration power generation technology meets the requirements of sustainable development and adapts to the characteristics of dense population and land shortage in my country's cities. [0003] my country's ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/46B09B3/00
CPCY02E50/30Y02E50/10
Inventor 袁浩然严密赵丹丹黄宏宇小林敬辛
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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