A device for realizing thermal catalytic efficient reduction and recycling of organic waste

Abstract

The invention provides a device for achieving thermocatalytic efficient reduction and reclamation of organic wastes. An organic waste feeding system is connected to a proportioning kettle material inlet, the proportioning kettle material outlet is connected to a pre-reaction kettle and the material inlet of a primary reaction kettle, the material outlet of the pre-reaction kettle is connected to the material inlet of the primary reaction kettle, the material outlet of the primary reaction kettle is connected to the material inlet of a cooling kettle, and the material outlet of the cooling kettle is connected to a solid-liquid separation system; a part liquid outlet of the solid-liquid separation system is connected to a water treatment system, and the liquid outlet of the water treatment system is separately connected to the proportioning kettle, the pre-reaction kettle and the material inlet of the primary reaction kettle; a jacket of the primary reaction kettle is connected to a heat source system; the steam outlet of the primary reaction kettle is connected to the proportioning kettle and the steam inlet of the pre-reaction kettle, and the steam outlet of the cooling kettle is connected to the steam outlet of the proportioning kettle; and the cooling water inlet and outlet of the proportioning kettle are connected to the cooling water outlet and inlet of the cooling kettle. The reduction effect of the organic waste is good, a catalyst can be recycled, and the solid product after reaction can be recycled.

Description

Technical field[0001]The invention belongs to the technical field of organic waste treatment, and particularly relates to a device for improving the reduction effect of organic waste through a thermal catalytic reaction.Background technique[0002]Organic waste refers to waste sludge with a high moisture content (40%-99%) of organic matter that accounts for more than 30% of inorganic components, such as kitchen waste, organic waste in the spray industry, organic high-boiling residue, medical synthesis waste and sewage treatment Excess sludge from the plant, etc. With the rapid development of social economy, more and more organic wastes are generated (Dai Qianjin, Fang Xianjin, Huang Ou, etc.. Organic waste treatment and disposal technology and gas production prospects[J]. China Biogas, 2008, 26(6): 17-32.), therefore, the reduction of organic waste has become an important issue for energy conservation and emission reduction in my country.[0003]At present, organic waste is mainly dispo...

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Problems solved by technology

[0004] Among them, incineration is the most effective and thorough organic waste disposal method, which can achieve a very high reduction effect of organic waste, but the cost of incineration treatment is high, and it may produce toxic and harmful gases such as dioxins, which will bring harm to the environment. Secondary pollution (Yu Qiang. Chemical solid waste incineration treatment and reference data analysis [J]. Chemical Industry, 2013, 31(7): 42-47.)

[0005] Landfill is to transport organic waste to a specific landfill site for landfill disposal. This method is simple to operate and has low treatment costs. However, if the anti-seepage technology of the landfill is not up to standard, the soil and groundwater will be greatly harmed, and there may be serious damage to the landfill. Toxic gas diffuses into the atmosphere, causing secondary pollution

In addition, landfill disposal requires a large land area, and this method of organic waste disposal is not suitable for places where land resources are scarce (Zhou Tao, Chen Jun. Big problems in urban environment: Analysis of sewage treatment plant disposal[J].Environmental Protection Science, 1998, 24(6): 11-12.)

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