Automatic-dust-removal refuse pyrolysis and cracking system
A self-cleaning dust and garbage technology, applied in the direction of indirect heating dry distillation, special form dry distillation, petroleum industry, etc., can solve the problems that it is difficult to make a major breakthrough in the comprehensive utilization technology of waste pyrolysis waste, the comprehensive utilization is difficult, and the tar composition is complex. Achieve the effect of saving construction cost and floor area, simple structure and good heating effect
Active Publication Date: 2016-10-26
SHENWU TECH GRP CO LTD
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Problems solved by technology
At the same time, it was found that the composition of the tar produced by garbage pyrolysis is also extremely complex. The analysis of the composition found that the tar contains hundreds of kinds of substances, including various organic acids, phenols, ketones, aldehydes, PAHs, etc., among which chlorine and heavy metal elements are common. On the high side, the water content is about 20%, and the calorific value is about 13~18MJ / Kg. At the same time, the high content of sulfides causes foul odor, and it is difficult to comprehensively utilize
Many factors make it difficult to make major breakthroughs in my country's waste pyrolysis and waste comprehensive utilization technologies
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Embodiment 1
[0079] (1) After removing substances that are not easy to pyrolyze or cannot be pyrolyzed, the garbage that is crushed to a particle size of ≤10mm enters the compression dehydrator 1, and the compressed and dehydrated garbage is sent to the hopper 2 and enters the regenerative downlink through the feeder 3 The bed reactor 4 is divided into a pyrolysis chamber and a cracking chamber by a heat-insulated brick wall.
[0080](2) One-way regenerative radiant tubes are evenly arranged in the pyrolysis chamber, and the temperature of the tube wall is controlled within the range of 500-700°C by a gas regulating valve. The garbage stays in the reactor from top to bottom for 1-30 minutes and is heated. At 500-600°C, the pyrolysis process is completed.
[0081] (3) The oil and gas produced by pyrolysis enters the particle bed dedusting device through the opening of the heat insulating brick wall at the lower part of the reactor. After being dedusted by the particle bed dedusting device, ...
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Abstract
The invention belongs to the technical field of refuse pyrolysis, and mainly relates to an automatic-dust-removal refuse pyrolysis and cracking system which is used for preparing clean combustible gas. In order to overcome the defects in the prior art, the invention provides an automatic-dust-removal refuse pyrolysis and cracking system. The reaction system can perform pyrolysis and cracking; oil gas generated by the pyrolysis chamber enters a particle bed for dust removal by a particle bed dust remover, and the clean oil gas enters a cracking chamber for deep cracking, thereby lowering the dust removal pressure at the back end; and the macromolecular tar molecules are cracked into micromolecular gaseous hydrocarbons, so the reactor can generate abundant cracked gas, thereby avoiding the problem of difficulty in utilizing the produced pyrolyzed oil, implementing refuse harmless treatment and dioxin zero discharge in deed, changing wastes into valuable substances, and satisfying the technical requirements for refuse comprehensive treatment in China.
Description
technical field [0001] The invention belongs to the technical field of garbage pyrolysis, and mainly relates to a self-dusting type garbage pyrolysis and cracking system for producing clean combustible gas. Background technique [0002] With the acceleration of my country's modernization process, municipal solid waste has become an important factor restricting the rapid development of green cities. At present, urban waste treatment methods in various countries in the world mainly include sanitary landfill, incineration, composting, pyrolysis, and comprehensive waste treatment. However, my country's related waste classification and waste comprehensive utilization technologies lag behind. At present, the main treatment method of waste is sanitary landfill, supplemented by incineration and composting. Moreover, with the advancement of science and technology and the enhancement of environmental protection awareness, people have increasingly recognized the destructive effects of...
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IPC IPC(8): C10B53/00C10B57/18C10B47/20
CPCC10B47/20C10B53/00C10B57/18
Inventor 耿层层陈水渺肖磊薛逊吴道洪
Owner SHENWU TECH GRP CO LTD
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