System with functions of condensing solar energy to generate steam and driving solid waste plasma gasification

Abstract

The invention belongs to the related technical field of solar heat utilization and organic waste clean conversion and utilization, and discloses a system with functions of condensing solar energy to generate steam and driving solid waste plasma gasification. The system comprises a plasma solid waste gasification unit and a solar light condensation and heat collection unit. The plasma solid waste gasification unit and the solar light condensation and heat collection unit can jointly work, sunlight can be gathered to an absorption cavity by a heliostat field, air in the absorption cavity can bedelivered into a high-temperature steam generator after heat is absorbed by the air, low-temperature steam which is delivered from a gasification furnace can be heated by the aid of the heat in the air to obtain high-temperature steam, and cold air can be delivered back to the absorption cavity to continue to being heated, so that circulation can be implemented. The high-temperature steam can be delivered into the plasma gasification furnace to be used as a gasification medium, gasification reaction can be carried out on the gasification medium and solid waste, and high-quality synthesis gas and nontoxic and harmless furnace slag can be generated by means of reaction. The system has the advantages that the energy efficiency of the integral system can be obviously improved, the solar energycan be continuously utilized for treating the solid waste through out the day, the output of the synthesis gas can be effectively increased, and the quality of the synthesis gas can be effectively improved.

Description

technical field [0001] The invention belongs to the related technical fields of solar heat utilization and clean transformation and utilization of organic waste, and more specifically relates to a system for generating steam by concentrating solar energy and driving solid waste plasma gasification. Background technique [0002] With the rapid development of human production and life, the amount of various types of biomass materials and municipal solid waste has doubled, while traditional incineration or landfill technologies are not clean, will greatly pollute the ecological environment, and are not in line with the path of sustainable development . For example, China produces approximately 400 million tons of domestic waste, 10 million tons of industrial toxic and hazardous waste, and 650,000 tons of medical waste every year. The amount of municipal solid waste produced in our country is increasing rapidly at a rate of about 10% every year, while the development of municip...

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Problems solved by technology

[0004] However, further studies have shown that the above-mentioned plasma gasification waste technology still has the following defects or deficiencies, which directly affect its popularization and application: On the one hand, the plasma gasification furnace consumes a lot of energy in operation, and the average treatment of 1kg of high-ash content Solid waste consumes about 0.7-0.9 degrees of electricity, which puts forward a good cost requirement for the long-term maintenance of the gasification system; on the other hand, the output and quality of syngas are limited, and the overall energy utilization efficiency is low. Low, and there are problems such as inconvenient manipulation

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