Aluminum hot rolling waste emulsion treatment system and method based on deep denitrification biological filtration

Abstract

The invention relates to the technical field of emulsion treatment, and particularly discloses an aluminum hot rolling waste emulsion treatment system and method based on deep denitrification biological filtration, the system comprises a treatment box, the treatment box is provided with a negative pressure suction pipe, a feed pipe, a gas inlet pipe, a discharge pipe and an oil discharge pipe; a rotating rod is rotationally arranged in the treatment box, a plurality of bent pipes are arranged at the lower end of the rotating rod, and the air inlet pipe penetrates through the treatment box and communicates with the bent pipes through the rotating rod; a filtering piece is mounted on the rotating rod; a scraping unit is arranged in the treatment box; the filtering piece can filter aluminum slag in emulsified liquid in the treatment box in the ascending process of the rotating rod, filtering holes of the filtering piece are prevented from being blocked, meanwhile, nano bubbles discharged by the bent pipe move upwards from the emulsified liquid, oil-water separation of liquid in the treatment box is achieved through the bubble technology, and the oil-water separation efficiency is improved. Furthermore, the oil, the water and the slag of the emulsion in the treatment box are subjected to layered treatment, so that the treatment effect on the waste emulsion is effectively improved.

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