A kind of cyclone flotation device

Abstract

The invention discloses a cyclone flotation device, which comprises an outer cylinder assembly, a lower head assembly and an inner cylinder assembly. The outer cylinder assembly includes an outer cylinder, the lower head assembly includes a lower head, a return pipe and a water outlet pipe, and the inner cylinder assembly includes an inner cylinder and a plurality of steady flow reinforcement plates. The nozzle height of the return pipe is higher than that of the water outlet pipe. The upper part of the steady flow reinforcing plate is closely attached to the inner wall of the inner cylinder, the middle part is closely attached to the inner wall of the outer cylinder, and the lower part is closely attached to the inner wall of the lower head. The water flow state in the guided separation zone is a vertically downward laminar flow state. The water outlet overflow shell is fixed on the outer wall of the outer cylinder and covers the overflow port. The downpipe is used to discharge the water located in the water outlet overflow shell, and the scum in the water outlet overflow shell is returned to the separation area from the overflow port. The invention has good separation effect, high removal efficiency, stable hydraulic structure, and the internal structure design of the flotation device avoids fouling and slag accumulation, so that fine air bubbles and scum can be fully separated.

Description

technical field [0001] The invention relates to a flotation device in the technical field of separation equipment, in particular to a cyclone flotation device. Background technique [0002] With the continuous development of the petroleum industry, most of the oilfields currently exploited in my country have entered a high water-cut period, and the water content of the oilfield produced fluid is sometimes as high as 90%, and the light suspended matter in the extracted fluid is usually treated with an air flotation device. Solid-liquid separation. [0003] The existing flotation devices have the following problems: 1. When transporting and starting to use, a large amount of vibration will be generated, and the tank body of the flotation device is easily deformed; 3. The pollution dead zone formed by the stepped flange ring connection affects the sensitivity of the liquid level switch; 4. When the air flotation is shut down, the scum on the surface will not be lost due to the ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of insufficient separation of fine bubbles and scum in existing flotation devices, the present invention provides a cyclone flotation device

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