Efficient pyrolyzing furnace dry distillation system and method based on oxygen-enriched environment

Abstract

The invention belongs to the technical field of pyrolysis and computers. The invention provides an efficient pyrolyzing furnace dry distillation system and method based on an oxygen-enriched environment. The method comprises the following steps: taking recycled coal gas of a series of furnaces as fuel, taking oxygen-enriched air as a combustion improver, introducing the recycled coal gas and the oxygen-enriched air into a coal gas burner according to a combustion ratio to organize combustion so as to generate high-temperature flue gas, and predicting a first temperature of the high-temperature flue gas; analyzing and predicting the first temperature and the second temperature of the high-temperature flue gas by using a flue gas input rate prediction model to obtain the input rate of the high-temperature flue gas; conveying the high-temperature flue gas into a pyrolysis furnace filled with lump coal through a distribution system at an input rate, and generating oil-containing pyrolysis gas in the pyrolysis furnace; oil-containing pyrolysis gas is introduced into a Venturi scrubber from the top of the furnace, a nozzle is arranged above the scrubber to spray water, cool and mix, liquid is collected at the bottom of an outlet of the scrubber, and the gas is directly emptied above the scrubber. According to the scheme, the pyrolysis efficiency is improved by controlling the input rate of the high-temperature flue gas.

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