Year: 2025
Type: article
Abstract: This paper designs an operational workflow, and key performance metrics of a novel removable sludge making coal machine, with parameters for the moisture content of 84.27%, at the rate of 10.08% of oil as the design object. The machine can be moved to the stacking site for treatment, recovering oil and making low oil content sludge to coal. The separated water will be used for oilfield injection, and can be processed for reuse. It not only access to the environmental benefits, it will also produce the enormous economic benefits. It designed for flexible, on-site deployment in oilfields and refineries, this integrated unit eliminates the need for costly and risky off-site transportation of hazardous oily sludge. The system, which is 1.8 meters in height and diameter, integrates a mechanical clarification tank, an automatic continuous discharge centrifuge, and a coal mixer. The operational workflow involves chemical pre-treatment and clarification at 500C, followed by centrifugal dewatering, and then blending the resulting solid cake with pulverized coal. Based on the design, the system achieves a high 98.89% oil removal rate and a 90% solid recovery rate, successfully transforming tank bottom mud with 10.08% oil content into a valorized sludge-coal mixture suitable for use as a solid fuel. The machine was successfully designed with the turbine as power with molding briquette, to convey solid-liquid separation in separation chamber to sludge for automatic continuous centrifuge, then to mud discharging pipe, and into the coal mixing machine. The device has the advantages of simple operation, good effect of processing factors and small human influence.
Authors: Dede Lawan Dahiru, Zhaouxuan Li, Abdulsalam Muhammad
Institutions: Liaoning Shihua University, University of Maiduguri
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7089375903
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