Organic solid waste treatment method and device

Abstract

The invention belongs to the technical field of waste treatment and provides an organic solid waste treatment method and treatment device. The treatment method comprises the steps that organic solid waste is indirectly heated through an external heat source, the organic solid waste is directly heated through superheated steam, and continuous anaerobic pyrolysis of the organic solid waste is achieved; then the mixed gas formed by pyrolysis gas generated by pyrolysis of the organic solid waste and superheated steam is subjected to high-temperature gasification combustion, the superheated steam serves as a reactant to participate in the high-temperature gasification combustion process, and the high temperature means that the temperature is higher than or equal to 800 DEG C. The treatment device comprises a heating chamber, a pyrolysis chamber, a superheated steam supply pipe, a combustion chamber, an exhaust pipe, a discharge device, a pyrolysis gas burner and an auxiliary fuel burner. According to the method, harmless and resourceful treatment of the organic solid waste can be achieved, and the method can also be used for recycling high-value resources of the original size from the waste. The whole device is simple in structure, easy to maintain and low in treatment cost.

Description

technical field [0001] The invention relates to the technical field of waste treatment, in particular to a treatment method and a treatment device for organic solid waste. Background technique [0002] Organic solid waste refers to solid and semi-solid organic waste products produced by human beings in production, consumption, life and other activities, including domestic waste, kitchen waste, industrial waste and medical waste. At present, for organic solid waste, the general treatment methods include landfill, composting, incineration, and pyrolysis. Among them, pyrolysis technology can not only realize the harmlessness, reduction and recycling of waste, but also effectively overcome the problem of dioxin pollution caused by waste incineration, so it has become a waste treatment technology with great development prospects. [0003] At present, the commonly used pyrolysis method is to directly burn organic solid waste in the first combustion chamber, and use the anoxic hot...

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Problems solved by technology

Therefore, the cost of refining the available oil will be higher than the value of the oil itself, and the gain outweighs the gain

Moreover, the device needs to stir the organic solid waste resources during the treatment process, resulting in high ash content in the flue gas, which requires dust removal treatment, resulting in high treatment costs

[0005] In addition, the existing pyrolysis technology devices all need to crush the organic solid waste before processing, not only the processing cost is high, but also when dealing with infectious medical waste that is sealed and packaged, unpacking and crushing is necessary. high risk of infection

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