Cyclone gas-flotation separation device for treating oily sewage

Abstract

The invention discloses a cyclone gas-flotation separation device for treating oily sewage. The device comprises a cyclone gas-flotation combined mechanism and a gas-liquid mixing mechanism; the cyclone gas-flotation combined mechanism comprises a cylinder body, and an upper end enclosure and a lower end enclosure which are matched with two ends of the cylinder body; a ball bowl-shaped oil-gathering hood with a bottom opening is connected onto an inner wall of the cylinder body; a rectifying tube is fixedly connected to the lower opening end of the oil-gathering hood; at least one cyclone guide blade is arranged on the inner wall of the cylinder body corresponding to the position of the rectifying tube; the cyclone guide blades surround the rectifying tube in a lift-angle surrounding manner; spacing is arranged between the cyclone guide blades and the rectifying tube; an exhaust port, a pressure gage and an oil outlet are arranged on the upper end enclosure; a water outlet is arrangedon the lower end enclosure; the water outlet is communicated with a water drain pipe; a gas-liquid mixture outlet of the gas-liquid mixing mechanism is communicated with a tangential inlet pipe; the tangential inlet pipe is communicated with the cylinder body; and the communication between the tangential inlet pipe and the cylinder body is arranged to be close to the initiating ends of the cyclone guide blades.

Description

technical field [0001] The invention relates to a cyclone air flotation separation device for oily sewage treatment, which is suitable for the purification treatment of oily sewage. Because of its compact structure and high performance, it is especially suitable for oil removal and purification of produced water on offshore platforms. Background technique [0002] Oily sewage comes from a wide range of industries and places such as oilfield exploitation, petrochemical industry, ship transportation, slaughtering and meat processing, catering industry, machinery manufacturing and metal rolling processing, light industry, chemical industry, oil and gas sales stations (depots) and other industries and places will generate a large amount of sewage Oily sewage. Since the oil content and its characteristics vary with different types of industries, and the same industry also varies greatly due to different production processes, equipment and working conditions, the treatment of oily...

AI Technical Summary

Problems solved by technology

In the past ten years abroad, great progress has been made in the combined application of air flotation and low-intensity cyclone centrifugal force field, and a number of compact combined treatment equipment have appeared successively, such as the compact air flotation unit (CFU) of Epcon of Norway, and the CETCO of the United States. the company's DeepSweep from Cyclotech UK TM , the compact air flotation device of Opus Maxim in the UK, and the VorSep of Siemens in Germany TM , Cophase of France Veolia Water Solutions & Technologies (VWS) Westgarth TM And other products belong to this category, but the country is still in its infancy at present, it is necessary to develop a new and efficient compact cyclone air flotation separation system to meet the needs of the current domestic situation

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