Oil-contained sludge pyrolysis-combustion coupled double-bed integrated treatment process system

Abstract

The invention discloses an oil-contained sludge pyrolysis-combustion coupled double-bed treatment process. A process system comprises an oil-contained sludge drying system, a combustion system and a fluidized bed incineration system, wherein the drying system comprises a feeding machine, a drying unit, a storage tank and the like, the combustion system comprises a combustion furnace, a nitrogen gas cylinder set, a re-circulating fan, a refeeder, a belt conveyor, a dried oil-contained sludge feeding machine, a pyrolysis gas outlet and the like, and the fluidized bed incineration system comprises a circulating fluidized bed boiler, an auxiliary fuel feeding machine, a cyclone separator, a refeeder, a flue, a dust remover, a desulfurization tower, a chimney, an air supply machine, a high-pressure fluidization fan and the like. Oil-contained sludge enters the combustion furnace to be combusted after being dried, hot flue gas enters a pyrolysis furnace to provide heat required by pyrolysis,pyrolyzed oil-contained sludge coke is returned to a combustion chamber to be incinerated under the action of fluidization air provided by the nitrogen gas cylinder set, the incinerated flue gas is purified and then discharged through the chimney, and through the process, reduction, recycling and harmless comprehensive utilization of the oil-contained sludge is realized.

Description

technical field [0001] The present invention relates to an oily sludge pyrolysis-combustion coupling twin-bed integrated treatment process system, in particular, to a process for realizing waste resource reduction, recycling, The treatment process of harmless comprehensive utilization. Background technique [0002] Oily sludge is a kind of pollutant formed after the sedimentation of oily sludge and oil sand contained in crude oil, which is produced in the process of petroleum exploration and development, transportation, storage and refining. With the development of the global economy, the demand for oil resources is increasing, and the output of oil sludge accompanying the oil industry is also increasing. According to statistics, the total amount of oily sludge produced in my country every year is more than 5 million tons. With the further deep exploitation of crude oil, the output of oily sludge will continue to increase. [0003] The composition of oily sludge is very co...

AI Technical Summary

Problems solved by technology

Organic pollutants in oil sludge, especially organic pollutants such as polychlorinated biphenyls, polycyclic aromatic hydrocarbons, phenols, and benzene series, are highly carcinogenic. If they are not handled properly, they will easily cause water, soil, and air pollution problems. , thereby endangering human health

If the oily sludge is discharged directly without treatment, it will not only occupy a large amount of cultivated land, but also pollute the surrounding soil, water and air.

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