SU1431846A1 - Hydraulic cyclone - Google Patents

Abstract

The invention relates to the treatment of natural and waste waters and can be used in the chemical and some other branches of the national economy. The purpose of the invention is to increase work efficiency. A hydrocyclone consists of a housing 1, a cover 2 with a nozzle 3 for draining filtrate mounted on bearings 4 of a hollow rotor 5 with a filter element (F) 6 rotating from the drive 7, seals 8 and 9. The nozzles 10 and 11 are designed to supply fluid to a multiple channel 12, formed outside the perforated wall (PS) 13 of the housing 1, the hopper 14 with the valve 15 to collect the condensed product, the pipes 16 and 17 to remove the sludge. The liquid to be purified enters through the nozzle 10 tangentially into the first channel 12. Large particles are thrown to the walls, and the liquid is filtered through PS 13. For additional purification, the liquid passes w (L

Description

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by filtering through rotating F 6. When the PS 13 interacting with the first channel is clogged, the liquid to be purified is fed into the second channel through pipe 11, and PS 13 of the first channel is regenerated due to backflow of the liquid. 1 il.

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The invention relates to the purification of natural and waste waters by the mechanical removal from the water of the chest (B. uiciiioHHbix and emulsified) impurities.

The purpose of the invention is to increase work efficiency.

The drawing shows a hydrocyclone, a general view in section.

A hydrocyclone consists of a housing 1, a cap 2 with a nozzle 3 for draining the filtrate. Inside the cover, on bearings 4, there is a hollow rotor 5 on which a cylindrical filter element 6 is fixed in the form of a grid with a certain cell size, rotating from actuator 7. Seal 8 separates the cavities of the cleaned and dirty liquid, the seal 9 prevents leakage of oil. In addition, there are nozzles 10 and 11 for supplying fluid to a multiple-thread helical hollow channel 12 formed by a multiple-flow spiral mounted outside the perforated wall 13 of the housing 1, a hopper 14 with a drain valve. 15 and the pipes 16 and 17 of the sludge removal.

Hydrocyclone works as follows.

The purified liquid containing suspended dispersed particles is fed under a pressure of 0.2-0.5 MPa to the nozzle 10, i.e. first channel. Due to the occurrence of centrifugal forces, large suspended particles are pressed to the outer side of the channel, and the liquid interacts with smaller particles with the surface of the perforated wall 13, the filter elements in which are located tangentially to the generator of the housing 1 in the direction opposite to the rotation of the rotor 5, which increases the flow turbulence and improves filtration and self-cleaning conditions of rotor 5. Separable contaminants in the floor, channel move under pressure to the outlet through

pipe 17. The filtrate interacts with the rotating surface of the rotor and is subjected to additional fine cleaning. After long-term operation, the channel can be shut off and the original flow is switched to another channel through nozzle 11. When switching to the second channel, a pressure drop in the first channel is observed, this contributes to the return flow of the filtrate into the disconnected channel, causing its filtering capacity to regenerate by backwashing. To achieve device continuity, the switching cycle is repeated. The filtration capacity in the spiral channels is determined by the centrifugal forces, as well as by the presence of filter elements. Filter regeneration is due to the hydrodynamic effect and backwash of the filtrate. All this significantly improves the performance of the device, its reliability and allows you to avoid unplanned stops due to clogging of filters.

Claims (1)

Invention Formula 5 Hydrocyclone, comprising a housing with a perforated wall and an upper lid, a filtrate drainage pipe, a spiral with tangential pipes for supplying the initial fluid and sludge removal, mounted outside the perforated 0 of the housing wall, characterized in that, in order to increase efficiency, it is equipped with a hollow rotor with a cylindrical filter element fixed on it and a bunker with a drain plug, while the rotor is connected to the filter tapping pipe 5, and the helix is made multiple with the formation of non-communicating a screw channel having independent pipes for supplying the original fluid and drainage.