Low-temperature oil-water separation equipment for viscous oily sewage and its separation process

Abstract

The invention belongs to the technical field of sewage treatment and discloses a low-temperature oil-water separation equipment for viscous oily sewage and a separation process thereof. A driving track is installed near the upper port, and a walking oil scraping vehicle is installed on the driving track. A scraper scraper system is installed on one side of the walking oil scraping vehicle, and a device for driving the walking oil scraping vehicle to The drive system that moves close to or away from both sides of the scraper system; the invention can drive the walking oil scraper and drive the scraper to move through the drive system, and then can conveniently scrape out the sticky oil in the oil-water separation box, which is convenient to use. And the overall structure is simple, easy to use, and can also conveniently drain viscous oil, thereby improving the oil-water separation effect.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a low-temperature oil-water separation device for viscous oily sewage and a separation process thereof. Background technique [0002] Viscous oils with high viscosity, including crude oil, shoe polish, and lubricating grease, are involved in the cleaning and maintenance of facilities during the production and transportation process. This process produces a large amount of sewage containing viscous oil; sewage containing viscous oil has High viscosity, poor fluidity at room temperature, poor thermal conductivity, many impurities, high oil content, high recovery value, and flammability. [0003] At the same time, when the oil-water mixture is heated until the water boils, there will be a serious emulsification effect. The oil and water will merge into one and no longer separate. When the temperature of the fused oil-water mixture is above 60°C, the state of th...

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Problems solved by technology

[0006] However, when using this process to treat the viscous oily sewage, there are problems such as slow heating (the thermal conductivity of viscous oil is low when the fluidity is not obvious at room temperature), high heating temperature has the risk of flammability and explosion, and poor fluidity at room temperature is difficult to collect and transport. ; and when the oil and water are in the state of emulsification and fusion, the water content in the separated oil is high, which reduces the use effect

[0007] Moreover, when the traditional oil scraper and oil skimmer separate the oil from water in the viscous sewage, due to the high viscosity of the oil in the viscous sewage, it is easy to scrape the phenomenon; and the viscous oil is easy to stick to the scraper and is not easy to fall off. The use effect is low; when the oil is scraped, the drainage gap is easily blocked by sticky oil, which makes the sewage difficult to recycle and leach out, reducing the use effect

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