Household garbage incineration device without combustion-supporting of conventional fuel

Abstract

The invention provides a household garbage incineration device without combustion-supporting of conventional fuel, relating to a garbage incineration device, and mainly comprising a furnace body, a flue gas circulation pipe and a circulation fan, wherein the interior of the furnace is divided into a drying region, a pyrolytic decomposition region, a gasification / combustion region and a second combustion region according to the operation conditions thereof; the regions are adjacent and communicated in sequence; the drying region is disposed on the front part within the furnace, the gasification / combustion region is arranged on the back part of the furnace, the pyrolytic decomposition region is arranged between the drying region and the gasification / combustion region, and the second combustion region is arranged over the gasification / combustion region; the front end of the drying region is provided with a feeding port, a circulation flue gas outlet interface is disposed over the front part of the drying region; a circulation flue gas inlet interface is accessed from the wall of the gasification / combustion region; a shell is arranged above the second combustion region, or a kiln is arranged on the internal heat outlet of the second combustion region. The household garbage incineration device without combustion-supporting of conventional fuel provided by the invention has the advantages that the garbage and waste can comprehensively utilized, the household garbage can be completely dissolved, the pollutant content within the flue gas which is discharged is low, the structure of the device is simple, the investment cost is low and the popularization work is easy.

Description

Technical field [0001] The invention relates to waste treatment technology, in particular to waste incineration equipment. Background technique [0002] At present, the energy shortage and the environmental protection situation are severe. With the development of my country's national economy and the continuous expansion of urban scale, garbage is increasing rapidly, and its content of harmful components is getting higher and higher. If it is not handled properly, it will pollute the environment and threaten people's health. This will not only restrict The progress of the society also affects the sustainable development of the national economy. At present, China's domestic waste treatment mainly includes sanitary landfill technology, composting (biochemical) technology and incineration technology. Most areas use sanitary landfill method to deal with domestic waste, which not only takes up a lot of land, wastes resources, but also easily pollutes land and groundwater; compos...

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Problems solved by technology

At present, China's domestic waste treatment mainly includes sanitary landfill technology, composting (biochemical) technology and incineration technology. Most areas use sanitary landfill method to deal with domestic waste, which not only takes up a lot of land, wastes resources, but also easily pollutes land and groundwater; composting only utilizes about 40% of organic matter, and it is necessary to build supporting incineration process equipment and sanitary landfills. Heavy metals in composting products may pollute the soil and enter the food chain crops, and there are also secondary Hidden dangers of secondary pollution; the incineration method is used to deal with urban domestic waste, and the waste heat is used for power generation or heat supply, which can reduce the amount and recycle domestic waste. However, due to the high water content and low calorific value of domestic waste, ordinary garbage The incineration equipment needs to use conventional fuels such as coal or fuel oil to support combustion during operation. At the same time, there are disadvantages such as high pollutant content in the flue gas, inability to effectively eliminate carcinogenic and highly toxic dioxins and furans, and complex flue gas purification systems; the existing Garbage incineration equipment is only suitable for processing urban domestic waste, but cannot be popularized in villages and towns. It cannot realize low-cost and meet environmental protection requirements for processing village and township domestic waste with higher moisture content and lower calorific value.

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