Method of preparing regenerated coal from municipal solid waste

A technology of bagging municipal solid waste and coal, which is applied in the field of urban solid waste resource treatment technology, can solve problems such as smoke pollution, difficult disposal, energy consumption, etc., achieve small investment and occupy an area, and have no secondary pollution , the effect of low operating cost

Inactive Publication Date: 2012-01-11
TIANJIN DEWEI ENVIRONMENTAL PROTECTION ENG EQUIP
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Problems solved by technology

[0002] China's urban domestic waste has complex components, including waste paper, clothing, muck, metal, glass, kitchen waste, etc., and it is difficult to effectively deal with it. At present, there are certain limitations in the composting process, direct incineration process, and landfill process in waste treatment technologies. Defects
For example, landfill treatment not only occupies a large area, but

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  • Method of preparing regenerated coal from municipal solid waste
  • Method of preparing regenerated coal from municipal solid waste

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[0023] As shown in the figure, a new method of making recycled coal from municipal solid waste includes the following steps: (1) Rough sorting: sorting out large pieces of combustible materials and other materials; (2) Broken bags: removing the The plastic bag of domestic garbage is broken open to disperse the materials inside the bag to facilitate subsequent processing; (3) Magnetic separation: to separate ferrous metals; (4) Screening: to bury the inorganic materials harmlessly under the screen, The material on the sieve is crushed to produce recycled coal, and the organic material in the sieve is degraded; (5) Degradation: The organic matter in the garbage is degraded by steam. At 1.1MPa and 180°C, the organic matter can be degraded for 1 hour. The water is released to achieve the effect of dehydration, thereby increasing the calorific value of the material and becoming a good recycled coal base material; (6) Extrusion dehydration: The degradable material is squeezed and dehy...

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Abstract

Provided is a novel method of preparing regenerated coal from municipal solid waste. The method comprises the following steps: (1) crude sorting; (2) bag break; (3) magnetic separation; (4) screening; (5) degradation; (6) extruding dehydration; (7) drying; (8) crushing; (9) preparation of materials; (10) molding; (11) drying; (12) packaging of regenerated coal. The invention enables the problem of difficult disposal of municipal solid waste to be solved and the regenerated coal to be prepared from the municipal solid waste, and the regenerated coal has the advantages of a high heat value, no secondary pollution and stable combustion, thereby realizing resource utilization; the regenerated coal can be used to substitute fossil fuels, thereby enabling a great amount of national resources to be saved and actually turning the waste into the valuable; the method provided in the invention has the advantages of small investment and occupied land area, a short treating period and low operational cost.

Description

Technical field: [0001] The invention relates to a resource treatment process of municipal domestic waste, in particular to a novel method for making recycled coal from municipal domestic waste. Background technique: [0002] The composition of China's urban domestic waste is complex, including waste paper, clothing, muck, metal, glass, kitchen waste, etc., which are difficult to effectively deal with. At present, there are certain limitations in the composting process, direct incineration process, and landfill process in waste treatment technologies. Defects. For example, landfill treatment not only occupies a large area, but also has secondary pollution such as polluted water and air. At present, it is difficult to find suitable landfill sites in many large cities; composting process has a long treatment cycle and produces high-concentration wastewater. It is difficult to handle and pollutes the environment; the direct incineration process has high construction and operat...

Claims

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Application Information

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IPC IPC(8): C10L5/46B09B3/00
CPCY02E50/30Y02E50/10
Inventor 郭旭王冬戈刘奇林刘立雨任国芬刘云帆
Owner TIANJIN DEWEI ENVIRONMENTAL PROTECTION ENG EQUIP
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