Oil cleaning device for sewage treatment oil separation tank

Abstract

The invention relates to an oil cleaning device for a sewage treatment oil separation tank, and solves the problems that in the prior art, oil cleaning is not thorough, and oil easily contains water. According to the technical scheme, the oil cleaning device comprises an oil separation tank, an oil removal unit, oil scraping plates, a water collection tank and an oil storage tank, the oil removal unit is located in the oil separation tank, an oil inlet is formed in the oil removal unit, the oil scraping plates are located in the oil separation tank below the oil removal unit and arranged on the left side and the right side respectively, the water collection tank is located below the oil separation tank, a water separation plate capable of moving up and down is arranged in the water collection tank and divides the water collection tank into an upper independent cavity and a lower independent cavity, a water outlet of the oil separation tank is communicated with the cavity above the water separation plate through a pipeline, and the oil storage tank is located in the cavity above the oil separation plate and communicated with the oil removal unit through an oil pipe. The oil scraping plate is connected with the cavity below the water separation plate sheet through a gas pipeline; the device is novel in conception, ingenious in structure and high in practicability.

Description

technical field [0001] The invention relates to the field of sewage treatment machinery, in particular to an oil removal device for a sewage treatment grease trap. Background technique [0002] Existing oil-water separation (refer to figure 1 ) Generally, the purpose of separation is achieved by using the different specific gravity of suspended solids and water in wastewater. The structure of the grease trap mostly adopts the advection type. The oily wastewater enters the rectangular grease trap through the water distribution tank and flows slowly along the horizontal direction. During the flow, the oil floats on the water surface and is pushed by the oil collecting pipe or the oil scraper installed on the pool surface. into the oil collection pipe and flow into the dehydration tank; this method has the following problems: firstly, due to the uncertain amount of collected oil, the position of the oil discharge port cannot be accurately determined; secondly, if the oil is co...

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Problems solved by technology

[0003] In view of the above situation, in order to solve the problems existing in the prior art, the object of the present invention is to provide a sewage treatment grease trap oil removal device, which solves the problems in the prior art that the oil removal is not complete and the oil easily contains water.

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