Oil-water separation device and oily sludge drying system

Abstract

The invention relates to an oil-water separation device and an oily sludge drying system. The oil-water separation device comprises a box body, and an oil storage area, a first separation area, a second separation area, a sludge storage hopper, a water level adjusting area and a water storage area which are arranged in the box body, wherein the sludge storage hopper is communicated with the first separation area, and the second separation area is communicated with the water level adjusting area; a separation partition plate is arranged between the first separation area and the second separation area; a first inner partition plate is arranged between the first separation area and the oil storage area; a second inner partition plate is arranged between the second separation area and the water level adjusting area; a water level adjusting weir plate is arranged between the water level adjusting area and the water storage area; the top surface heights of the separating partition, the first inner partition and the water level adjusting weir plate are sequentially increased; the height of the second inner partition plate is larger than that of the water level adjusting weir plate and smaller than or equal to that of the upper plane of the box body. The oil-water separation device is simple in structure, good in oil-water separation effect, high in separation efficiency, convenient to maintain and high in practicability.

Description

technical field [0001] The disclosure relates to an oil-water separation device and an oily sludge drying system. Background technique [0002] During the drying process of oily sludge, the light oil in the oily sludge is heated and gasified to obtain tail gas in the gas phase state. Therefore, the tail gas in the gas phase state needs to be cooled to reduce volatile organic compounds (Volatile Organic Compounds, VOC) However, during the tail gas treatment process, the condensed high-temperature wastewater has a high oil content. The oil in the wastewater may continue to volatilize under high temperature conditions. If it is discharged directly, oil and gas will be formed in the drainage system, posing a safety hazard. Therefore, according to the "Petrochemical Industry Pollutant Discharge Standard" GB 31571-2015, the oil content in indirect discharge water is required to be less than 20mg / L, and oily wastewater needs to be pretreated before it can enter the drainage system....

AI Technical Summary

Problems solved by technology

However, the oil-water separator of the gravity partition type takes up a large space and has low separation efficiency, while the oil-water separator with auxiliary structures such as inclined plates or coalescing packing has a complex structure, is not easy to overhaul, and is easy to block, and the actual separation effect poor

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