SU1699625A1 - Multistep hydrocyclone unit - Google Patents

Abstract

The invention relates to a device for separating suspensions under the action of centrifugal forces and reduces energy consumption by reducing the high pressure of a concentrated gathering. The installation consists of hydrocyclones 1, 2, 3, 4 liquid discharge with tangential inlet nozzles 5, 6, 7, 8, drain nozzles 9, 10, 11, 12 and Peskovye nozzles 13, 14, 15, 16, recessed into the cavity of the expansion chamber 17, located between the hydrocyclones of the liquid debris and the separator 18 of the condensed descent, the nozzle of the condensed descent 19 of the expansion chamber 17 is connected to the inlet tangential nozzle 20 of the separator of the condensed descent. Perforated grilles 23, 24, 25, 26 are installed in the cavity of the expansion chamber 17 under the Sand nozzles of the hydrocyclones. Due to the installation of the expansion chamber between the liquid discharge hydrocyclones and the condensation separator, the latter enters by gravity into the separator and the screens protect the bottom of the expansion chamber from rapid destruction. 1 il. (Ls

Description

The invention relates to devices for separating suspensions under the action of centrifugal forces and can be used to relieve high pressure in the production of liquid fuels during the hydrogenation of coal, in the chemical, oil refining and other industries, where further separation, for example, in centrifuges and filters, is necessary low pressure of the suspension supplied to them.

The purpose of the invention is to reduce power consumption by reducing the high pressure of the condensed vent.

The drawing shows a General view of the multistage hydrocyclone installation.

The installation contains hydrocyclones 1. 2. 3 and 4 liquid outlets with tangential inlet nozzles 5, 6, 7 and 8, drain nozzles 9, 10, 11 and 12 and Peskovy nozzles 13, 14, 15 and 16. Hydrocyclones 1, 2, 3 and 4 form separation stages. The drain pipe 9 of the hydrocyclone 1 of the first stage is connected to the tangential inlet pipe 6 of the hydraulic cylinder 2 of the second stage, the drain pipe 10 of the hydrocyclone 2 is connected to the input pipe of the 7 hydrocyclone 3 third stage, and the drain pipe

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11 hydrocyclone 3 is connected to the tangential inlet of 8 hydrocyclone 4 fourth stage. Sand pipes 13, 14, 15 and 16 hydrocyclones 1, 2, 3 and 4 are recessed into the cavity of the expansion chamber 17, located between the hydrocyclones 1, 2, 3 and 4 liquid descent and separator 18 condensed descent. The condensed outflow pipe 19 of the expansion chamber 17 is connected to the inlet tangential pipe 20 of the condensed outfall separator 18 having axial drain 21 and sand sand 22 nozzles. In the cavity of the expansion chamber 17 under the Sand pipes 13,14,15 and 16 hydrocyclones 1, 2, 3 and 4 installed perforated grilles 23, 24, 25 and 26.

Multistage hydrocyclone installation works as follows.

The initial suspension containing mechanical impurities, through the tangential nozzle 5 enters the hydrocyclone 1, where under the action of centrifugal inertia forces it is divided into liquid and condensed gatherings. Liquid discharge through the drain pipe 9 enters the tangential staple cuttings 6 hydrocyclone 2 second stage. Here, the suspension is also divided into liquid and condensed gatherings. The liquid gathering of the hydrocyclone 2 through the drain nozzle 10 enters the tangential nozzle 7 of the hydrocyclone 3 of the third stage. After separation of the suspension in the hydrocyclone 3, the liquid flow through the drain pipe 11 enters the tangential pipe 8 of the hydrocyclone 4 of the fourth stage for further separation. From hydrocyclone 4, the finally clarified liquid discharge from & num- ber through drain outlet 12 for the intended purpose.

Condensed gatherings of hydrocyclones 1, 2.3, and 4 through the sand pipes 13, 14, 15, and 16 enter the expansion chamber 17, where you hit the perforated grids 23, 24, 25, and 26, lose most of the energy, mix, and 19 by gravity flow into the tangential pipe 20 of the separator 18 condensed gathering. Here is the final selection of the condensed descent of the liquid phase. The clarified gathering through the drain pipe 21 is discharged to its intended purpose, and the condensed gathering

through the sand outlet 22 is directed from the plant for further separation into a centrifuge or filter.

By supplying the installation with an expansion chamber located between the hydro-cyclones of the liquid gathering and the separator of the condensed gathering, the condensed gatherings coming out of the hydro-cyclones of the liquid gathering lose in it the main part

their energy and mixed. As a result, a high pressure is discharged, and the condensed convergence by gravity enters the condensate separator. Installation in the expansion chamber under the Sand

nozzles of hydrocyclones of the liquid gathering of perforated lattices promotes better mixing of condensed streams, i.e. Collision from the lattice, particles of a condensed descent, reflected from them,

shuffled between fails. In addition, the grilles protect the bottom of the expansion chamber from water hammer and, therefore, from rapid destruction. When striking a lattice, condensed gatherings consume most of their energy, which helps to reduce the high pressure of the initial thickened gathering.

Claims (1)

Invention Formula Multistep hydrocyclone installation containing hydrocyclones of a liquid discharge with tangential inlet, drain and sand pipes and located under hydrocyclones of a liquid discharge A separator of condensed descent, characterized in that, in order to reduce energy consumption by reducing high pressure of condensed descent, it is equipped with an expansion chamber with sand lattices installed under the pesky pipes of hydrocyclones and with a pipe of withdrawal of the condensed materials, while the expansion chamber is located between the hydrocyclones of the liquid coming off and delimiter of condensed descent, sand pipes of hydrocyclones of liquid descent are buried in the cavity of the expansion chamber, and the pipe of condensed descent of the expansion chamber is connected to the inlet pipe of the separator Q condensed gathering. 12