Direct heat supply type multi-stage series-parallel turbulent bed pyrolysis stripping furnace in combustion flame furnace

Abstract

The invention relates to the field of pyrolysis stripping reactors, in particular to a direct heat supply type multi-stage series-parallel turbulent bed pyrolysis stripping furnace in a combustion flame furnace. The direct heat supply type multi-stage series-parallel turbulent bed pyrolysis stripping furnace comprises a furnace shell, and the furnace shell comprises an upper section furnace, a middle section furnace and a lower section furnace which communicate with one another; the upper section furnace is provided with an organic solid waste inlet and a gaseous mixture outlet; the middle section furnace is provided with a plurality of serially-connected groups of parallel turbulent micro-reaction beds; the lower section furnace is provided with a fuel burner, a pressure-temperature gas inlet and a residue outlet; and fuel is combusted through a fuel combustor to generate high-temperature flue gas which flows from bottom to top and is in direct contact with organic solid waste to provide heat. The direct heat supply type multi-stage series-parallel turbulent bed pyrolysis stripping furnace has the effects of improving the heat supply efficiency and the heat absorption efficiency of the organic solid waste pyrolysis stripping process and reducing the energy consumption.

Description

Technical field [0001] The present application relates to the field of pyrolysis of the transfusion reactor, in particular, involving a combustion flame furnace direct to the heat-dissipating multi-stage parallel jamping machine heat dissipating furnace. Background technique [0002] With the acceleration of my country's economic development and urbanization process, the resource consumption is increasing, and the output of various waste production, diversified waste form, soil and groundwater pollution, etc. are more severe. The national environmental protection regulations require reduction and harmless governance to environmental emissions, and use appropriate technology to achieve resource recycling requirements for environmental emissions requirements. Using, contaminated soil needs to repair the governance to achieve agricultural or urbanized commercial soil requirements. [0003] These organic solid waste materials (organic solid waste) have three major categories. First, ...

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Problems solved by technology

[0007] The pyrolysis method varies greatly depending on the pyrolysis reactor (pyrolysis furnace) technology. The "batch" pyrolysis furnace can feed materials once and discharge slag once, so it cannot be continuously produced, and the processing scale of the pyrolysis furnace is small; " The continuous type pyrolysis furnace has a small processing scale, and the continuous operability is not high due to various factors. At present, both "intermittent" and "continuous" pyrolysis furnaces use organic solid waste in the furnace, heat carrier (External heat supply) Outside the furnace, the "indirect" heat supply and pyrolysis method in which the organic solid waste in the jacket is in direct contact with the heat has low heat transfer efficiency and low heat absorption efficiency, resulting in low heat utilization efficiency and heat loss. Problems such as slow decomposition reaction speed, long reaction time, high energy consumption, pyrolysis solid residues cannot meet the requirements of ultra-clean emission environmental protection indicators, etc.

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