System and method for treating organic solid waste in villages and towns

Abstract

The invention discloses a system and a method for treating organic solid wastes in villages and towns. The system comprises a pretreatment unit, a dryer and a pyrolyzer. The dryer comprises a dryer inner barrel, a dryer outer barrel and a dryer inner pipe. The end, extending into the dryer inner barrel, of the dryer inner pipe is open, a first dry hot air inlet is formed in the other end of the dryer inner pipe, the dryer outer barrel is arranged on the dryer inner barrel in a sleeving mode, and a second dry hot air inlet and a dry cold air outlet are formed in the dryer outer barrel. The pyrolyzer comprises a pyrolyzer inner barrel, a pyrolyzer outer barrel and a pyrolyzer inner pipe. A high-temperature hot air inlet and a hot air outlet are formed in the pyrolyzer outer barrel. The pyrolyzer inner pipe extends into the pyrolyzer inner barrel from the kiln tail of the pyrolyzer and penetrates through the kiln head of the pyrolyzer. A hot air inlet is formed in the end, close to the kiln tail of the pyrolyzer, of the pyrolyzer inner pipe, a dry distillation cold air outlet is formed in the end, close to the kiln head of the pyrolyzer, of the pyrolyzer inner pipe, and the dry distillation cold air outlet is connected with the first dry hot air inlet and the second dry hot air inlet.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment, and in particular relates to a system and method for treating organic solid waste in villages and towns. Background technique [0002] With the rapid advancement of China's agricultural modernization, the rapid development of township industrialization, and the continuous expansion of new urbanization, earth-shaking changes have been brought about in rural development, agricultural production, and farmers' lives. However, rural environmental problems are also becoming increasingly prominent. According to the survey, in 2011, China's rural domestic waste generated about 200 million tons, which has exceeded the sum of 660 urban domestic waste disposal, and at present, most towns and towns in the country do not have environmental protection infrastructure, and most of the administrative villages have environmental pollution control. It is in a blank state, which has led to more and mo...

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Problems solved by technology

According to the survey, in 2011, China's rural domestic waste generated about 200 million tons, which has exceeded the sum of 660 urban domestic waste disposal, and at present, most towns and towns in the country do not have environmental protection infrastructure, and most of the administrative villages have environmental pollution control. It is in a blank state, which has led to more and more serious non-point source pollution in rural life

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