SU1473860A1 - Hydrocyclone - Google Patents

Abstract

The invention relates to the purification of liquids and can be used in the water recycling systems of industrial enterprises, as well as for the purification of wastewater from suspended substances. The purpose of the invention is to increase the efficiency of wastewater treatment from floating impurities. The hydrocyclone includes a housing 1 with a lid 2, nozzles for supplying source water 3, removal of purified water 4 and sludge (PS) 5, cylindrical conical diaphragms (D) 6 with nozzles 7, annular perforated pipelines (T) 8 installed around nozzle 4 under D 6 D 6 form a series of centrifugal liquid separation zones 9 among themselves. The T 8 is connected through the pipeline 10 to the SPP 5, and the nozzles 7 located one above the other form drainage slots 11. The initial fluid flows through the nozzle 3 tangentially into the housing 1. Under the action of centrifugal forces, the heavy particles are thrown to the walls of the housing 1 and the outlet TC through FB 5. Additional clarification of the flow occurs in the separation zones 9. In this case, the clarified water is discharged through the slots 11, and the floating particles through T 8 and the pipe 10 are discharged through the FB 5. 1 sludge.

Description

one

The invention relates to the field of purification of liquids from suspended substances in the field of centrifugal forces and can be used in water recycling systems of enterprises in various industries.

The aim of the invention is to increase the efficiency of wastewater treatment from floating substances.

The drawing shows a hydrocyclone, section.

The hydrocyclone contains a cylindrical housing 1 with a lid 2, nozzles for supplying source water 3, discharging purified water 4 and discharging sludge 5, cylindrical cone diaphragms 6, in the upper part of which there are nozzles 7 forming the nozzle 4 for discharging purified water, circular perforated pipelines 8, mounted around the nozzle 4, under the diaphragm 6. The diaphragms 6 form between them a series of zones 9 of the centrifugal separation of the liquid. Ring perforated pipelines 8 through the pipeline 10 is connected to the pipe 5 of the discharge of sludge and hydrocyclone. The nozzles 7, located one above the other, form drainage slots 11.

Hydrocyclone works as follows.

The original fluid through the pipe 3 is fed tangentially into the upper part of the housing 1, where it acquires a rotational motion. Under the action of centrifugal forces, heavy contaminants are thrown onto the walls of the housing, slide into the lower conical part, and through pipe 5 are drained from the hydrocyclone. Partially clarified

 in the peripheral part of the housing 1, the fluid flow is subjected to additional clarification by centrifugal force in the separation zones 9 formed by the diaphragms 6. In zones 9, heavy soil particles are thrown onto the walls of the diaphragms 6, slide down and then fall onto the walls of the housing 1 where with the main

0 a stream of sludge slide into the lower conical part of the hydrocyclone. Light floating contaminants rise in zones 9 to the upper part, where they are retained by nozzles 7 and from where

5 is discharged through pipelines 8 and 10 to a pipe 5 to divert the main stream of sludge. The fluid clarified in zones 9 through the drainage slots 11 formed by nozzles 7 enters the central (axial) part of the hydrocyclone and is diverted from it through the nozzle 4, while in the peripheral separation zone 9 the height of the slot 11 is minimal, since it has a section This is the most destructive flow of liquid and therefore the minimum flow of clarified water is removed from it. As the liquid moves down the hydrocyclone, it becomes clarified and a more clarified liquid enters all subsequent zones from the peripheral zone 9, where it is subjected to additional clarification, while the height of the slit 11 of these zones increases from top to bottom and, consequently, the flow rate zones increases.

Thus, the use of diaphragms with the upper conical part, installed a small base up,

It allows the floating substances in the separation zones to accumulate in the upper part and to be held there by branch pipes, from where they are collected and discharged by perforated circular ducts. In this case, the annular perforated pipes for discharge of floating substances can be installed only in a few peripheral separation zones, where the most contaminated fluid flow is cleaned.

Claims (1)

Invention Formula A hydrocyclone containing a cylinder-conical case with a lid, nozzles for supplying source water, removal of clarified water and sludge, a separation unit made in a series concentrically arranged with respect to the case of cylindrical conical diaphragms installed on the pipe of removal of clarified water, characterized in that increasing the efficiency of wastewater treatment from floating substances; it is equipped with circular perforated pipes connected to the sludge outlet line and located around the outlet pipe veteran water beneath the diaphragms, and between the diaphragms in the nozzle of the clarified water outlet, annular drainage gaps are made, the height of which increases from top to bottom.