Drying treatment method of oil-containing sludge

Abstract

The invention relates to a drying treatment method of oil-containing sludge. The drying treatment method is characterized in that, in an oil-containing sludge drying treatment device, modifying treatment is carried out on the oil-containing sludge by utilizing an added improver, and the oil-containing sludge is made into fuel powder with a high combustion heat value through agitating and disintegrating the oil-containing sludge. The drying treatment method comprises the following specific steps of measuring the water content of to-be-treated sludge of the oil-containing sludge, and preparing the improver; conveying to-be-treated oil-containing sludge into the oil-containing sludge drying treatment device, starting agitation, and adding the improver into the oil-containing sludge drying treatment device according to a proportion of 10 to 40; ceaselessly agitating to-be-treated greasy filth in the oil-containing sludge drying treatment device, after the agitation is sufficient, starting a disintegration mechanism, carrying out disintegration on the modified greasy filth, and making the greasy filth into the fuel powder. The drying treatment method of the oil-containing sludge has the following beneficial effects that the extra use of water and an extracting agent is not needed in a production process; no waste gas is generated; the secondary pollution does not exist; only are the agitation and the disintegration needed in a treatment process, so that an overall technical process can be completed.

Description

technical field [0001] The invention belongs to the field of solid hazardous waste treatment, in particular to a drying treatment method for oily sludge. Background technique [0002] The oily (hydrocarbon-containing) sludge is huge. If it is not treated and discharged directly, it will not only occupy a large amount of cultivated land, but also pollute the surrounding soil, water, and air, accompanied by the generation of malodorous gas. The sludge contains a large number of pathogenic bacteria and parasites. (egg), copper, zinc, chromium, mercury and other heavy metals, salts, which contain a large amount of benzene series, phenols, polychlorinated biphenyls, dioxins, anthracene, pyrene and other odorous toxic substances and radionuclides and other refractory toxic and harmful substances. Arbitrary landfilling will lead to serious pollution of groundwater and serious damage to natural ecology such as food crops, trees, and vegetation. At present, the treatment methods of...

AI Technical Summary

Problems solved by technology

[0003] The existing process has the following disadvantages: the solvent extraction method, chemical heat washing method, and pyrolysis treatment method all need to be processed again, the products are diverse, the process is complicated, and the cost is high; the incineration method has higher requirements on the oil content and water content of the sludge. The scope of application is narrow; the project construction capital investment is large, the cycle is long, and the personnel skills are high; the unit processing cost is high

The disadvantage of this method is that the treatment effect will be affected by the source of the sludge. For the sludge containing a large amount of debris such as bricks, grass roots, plastics, etc., pretreatment equipment and processes are required.

Images