System and method utilizing cement klin to co-process city household garbage
A technology of municipal solid waste and co-processing, applied in cement production, clinker production, solid waste removal, etc., can solve the problems of difficult control of production process, high moisture content of domestic waste, complicated process, etc., and achieve tar treatment Difficult problems, reduced crushing difficulty, good raw material adaptability
Active Publication Date: 2014-07-23
BEIJING TRIUMPH INT ENG
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Problems solved by technology
[0009] Waste incineration has the advantages of significant reduction, complete harmlessness, and waste heat from recyclable waste incineration, but the incineration of mixed waste has the following disadvantages: my country's domestic waste has a high moisture content, low calorific value, and requires more auxiliary fuel, which eventually leads to Incineration costs rise
The process of this method is relatively complicated, and the sorted non-combustibles cannot be used and must be treated separately; coal with high calorific value is added in the RDF production process, and fossil fuels are also used to treat garbage
[0029] 4. Use fluidized bed technology to gasify garbage, and the synthetic gas is passed to the firing system for combustion. Disadvantages: high requirements for household garbage sorting and crushing, difficult to control the production process, no use of waste heat from cement plants, and no solution to high moisture content of garbage, The problem of low calorific value and low adaptability of raw materials
Method used
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[0073] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings, but not limited to the content listed in the embodiments.
[0074] see figure 1 and figure 2 , the system of the present invention for the cement plant to co-process municipal solid waste consists of a solid waste pretreatment system 1 (comprising a waste stacking shed 11, a waste sorting device 12, a drying device 13, a crushing device 14, etc.) connected through pipelines, a steam generating System 2 (including sewage purification device 21, steam generator 22, etc.), domestic waste gasification system 3 (including downdraft fixed-bed gasifier 31, gas purification device 32, tar cracking device 33, etc.), power generation system 4 ( It consists of gas turbine 41, generator set 42, etc.), cement production system 5 (including raw material pre-decomposition device 51, kiln tail smoke chamber 52, rotary kiln 53, grate cooler 54, waste gas treatment devic...
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The invention discloses a system and method utilizing a cement klin to co-process city household garbage, and relates to a weight reducing, harmless, and recycling treatment of organic wastes such as city household garbage. The system comprises a household garbage pretreatment system, a steam generating system, a household garbage gasifying system, an electricity generating system, and a mud production system. A cement production system and a fixed bed gasifying furnace are used to co-process the organic wastes such as city household garbage. The city household garbage is processed, and at the same time, energy generated by processing the garbage is provided for the cement production. The wastes are reduced, harmlessly processed, and recycled, and the system and method are accord with the development trend of circulation economy.
Description
technical field [0001] The invention relates to a method for reducing, harmless and resourceful treatment of organic waste such as urban domestic waste, more specifically, utilizing a cement production system and a fixed-bed gasifier to jointly process organic waste such as urban domestic waste. waste method. Background technique [0002] In the 21st century, mankind has entered the era of knowledge economy and circular economy. Countries around the world are taking "development of circular economy" and "establishment of circular society" as an important way to achieve sustainable development. Code of conduct for socio-economic activities. [0003] At present, there are mainly four treatment methods for municipal solid waste: [0004] 1. Landfill [0005] The so-called sanitary landfill is a landfill method that can control leachate and landfill gas. There are still many problems in the design, construction and operation of most landfills, which are manifested in: the d...
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Login to View More IPC IPC(8): B09B3/00B09B5/00C04B7/36C05F9/00
CPCY02P40/121Y02A40/20
Inventor 马明亮魏文荣陆秉权马雷
Owner BEIJING TRIUMPH INT ENG