Oil-containing pollutant treatment method performing indirect heating using heat-conducting oil and device thereof

Abstract

The invention provides an oil-containing pollutant treatment method performing indirect heating using heat-conducting oil and a device thereof, and relates to the technical field of oil-containing pollutant treatment technologies. The method comprises five steps of breaking, hot washing, thermal desorption, oil-gas treating and ash treating. Breaking and hot washing are firstly conducted on oil-containing pollutants, then thermal desorption is conducted on solid pollutants on which initial oil removing is conducted, heat exchange is conducted by a thermal desorption device using the heat-conducting oil used for heating a heating furnace as a medium to heat the oil-containing pollutants in the absence of oxygen, the pollutants are volatilized or separated from pollution mediums, and the ultra-clean treatment of the oil-containing pollutants is achieved; wasted oil and residual of the device can be adopted as raw materials of the heating furnace to reduce operation cost; oil and gas treated by the thermal desorption device enter a subsequent gas treating system to further perform condensing, filtering and separating, atomizing condensing crystallizing processing is conducted on treated ashes, the ashes can be adopted as excellent raw material of construction materials such as floor bricks, hollow bricks and the like, and solid particle and dust pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of treatment of oily pollutants, in particular to a method and device for treating oily pollutants indirectly heated by heat transfer oil. Background technique [0002] At present, oily pollutants are a kind of solid-liquid mixed waste rich in mineral oil produced in the process of petroleum exploration, exploitation, storage, transportation and refining. Whether oily pollutants enter the soil, oceans, or lakes, they will cause serious pollution to the ecological environment or water sources, and effective and sustainable governance is urgently needed. Although the thermal desorption technology for treating pollutants has been implemented worldwide, there are still the following problems: poor applicability of equipment, high operating costs, insufficient understanding of different pollutants, and improper use of parameters of process equipment leading to other problems. The generation of by-products, the n...

AI Technical Summary

Problems solved by technology

Although the thermal desorption technology for treating pollutants has been implemented worldwide, there are still the following problems: poor applicability of equipment, high operating costs, insufficient understanding of different pollutants, and improper use of parameters of process equipment leading to other problems. The production of by-products, the difficulty of controlling new pollution sources such as noise, dust, and dust pollution in soil remediation projects, etc.

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