Multi-stage rotational flow separation and filtering device with opposite rotational flows and use method

Abstract

The invention provides a multi-stage rotational flow separation and filtering device with opposite rotational flows and a use method. The device comprises a main rotational flow separation cylinder, at least two secondary rotational flow separation cylinders, an annular feeding guide tube and an annular effluent guide tube, wherein feeding holes of multiple secondary rotational flow separation cylinders are serially connected with a solid-liquid mixture inlet through the annular feeding guide tube; the liquid outlet of each secondary rotational flow separation cylinder is communicated with thefeeding hole of the main rotational flow separation cylinder through the annular effluent guide tube. When the device is used, a solid-liquid mixture flows into the secondary rotational flow separation cylinders from top to bottom through the annular feeding guide tube, primary granule separation and filtration are carried out, the solid-liquid mixture is further fed into the main rotational flowseparation cylinder through the annular effluent guide tube under the action of rotational flows, secondary granule separation and filtration are carried out, and third separation and filtration arefinally carried out through a liquid discharge hole in the top of the main rotational flow separation cylinder. The device is capable of rapidly and effectively separating solid granules from the solid-liquid mixture, is simple and convenient to operate, and is capable of effectively lowering solid-liquid processing and production cost.

Description

technical field [0001] The invention relates to the technical field of solid-liquid two-phase separation, in particular to a multi-stage cyclone separation and filtration device with opposite rotation and a use method for separating particles from solid and liquid. Background technique [0002] The country is vigorously promoting the whole society to save energy, improve energy utilization efficiency, protect and improve the environment, and promote comprehensive, coordinated and sustainable economic and social development. However, in many industries at present, the treatment of some emissions cannot meet the requirements. For example, in the construction industry, especially in the construction of underground projects, there are a lot of mud and particles that are discharged without meticulous separation and filtration; In the process of sewage treatment, centralized collection, graded sedimentation and additive treatment are mainly adopted at present; in addition, in the ...

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Problems solved by technology

[0005] Although the existing cyclone can realize solid-liquid separation, and can separate the particles in mud, sewage and crude oil to a certain extent, it can only perform preliminary separation, and the discharged substances can not meet the requirements of environmental protection and energy saving.

In addition, when the existing cyclone device with ordinary structure handles some viscous liquids suc

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