SU975100A1 - Hydraulic cyclone - Google Patents

Description

(54) HYDROCYCLONE

The invention relates to devices for the separation of suspensions in the field of centrifugal forces, and to hydrocyclones, and can be used in the treatment of wastewater from livestock, chemical, food and other industries.

A hydrocyclone is known, comprising a housing coaxially with which a KciMepa outlet is installed at the exit of the heavy phase, equipped with fixed workpieces of spherical shape installed on its axis, with an inclination opposite to the inclination of the spiral path of the heavy phase C1.

The presence of immobile working surfaces of spiral shape with a slope that is opposite to the inclination of the spiral trajectory of movement of the heavy phase makes it possible to achieve the creation of a drop in pressure in the outlet by means of an opposing flow. This makes it possible to do without throttling the outlet chamber by changing the cross section and thereby significantly improves the conditions of the unloading of the heavy phase, which has a positive effect on the working efficiency of the hydro cyclone.

However, a known hydrocyclone can work effectively only under stable conditions: with constant races, suspensions and fractions, and a constant concentration of the divided fractions suspension. Under conditions of livestock farms, where the concentration of the separated wastewater varies from 5 g / l, the known hydrocyclone

10 works inefficiently. Under conditions of varying concentration, it is necessary to vary the flow rate through the discharge section of the heavy phase. In a known hydrocyclone, this can be done by changing the opposing flow created by the working surfaces.

The aim of the invention is to increase the efficiency of the hydrocyclone with varying concentrations

20: separable suspension.

Claims (1)

The goal is achieved by c. a hydrocyclone containing a housing, coaxially with which at the exit of the heavy phase an exhaust chamber is installed with working surfaces of a spiral shape spaced along its axis with an inclination opposite to the inclination of the spiral trajectory of the heavy phase, the discharge chamber is located at the location of the working surfaces of two adjacent pipes, the outer one of which is mounted with the possibility of axial movement. The drawing shows a hydrocyclone, a general view. The device includes a housing 1 with a tangentially located inlet pipe 2, an exhaust pipe 3 of the light phase and an outlet 4 of the heavy phase. A discharge chamber 5 is installed coaxially with the housing 1 at the exit of the heavy seat, equipped with fixed surfaces 6 of spiral shapes fixed on its axis. The working surfaces b are inclined opposite to the inclination of the spiral trajectory of the heavy phase (indicated by the arrow) i In the place where the surface 6 of the housing of the outlet chamber 5 consists of the inner 7 and outer 8 nozzles, while the nozzle 8 is installed with the possibility of axial movement. Hydroclone works as follows. The suspension under pressure is fed through the inlet nozzle 2 into the hydrocyclone body 1, where it is separated into the heavy and light phases. The light phase is withdrawn from the hydrocyclone through the nozzle 3, and the heavy phase through the outlet 4 is output into the outlet chamber 5. When moving to the outlet outlet ka-. Measures of heavy phases and gets on an unmovable working surface b and must at the same time change the direction of movement, which creates a drop in pressure in the outlet chamber. When it is necessary to change the value of the pressure drop, the nozzle 8 is moved; at this, the area of interaction of the flow of the heavy phase with the working surface b changes due to the fact that the hard phase can pass to the outlet of the chamber 5 over part of the chamber section, bypassing the working surface b on the side through the gap formed when lifting the pipe 8 up. The possibility of varying the pressure drop in chamber 5 without changing its cross section allows thereby changing the flow rate of the separated heavy phase and allows the hydrocyclone to work effectively under conditions of varying concentration of the suspension being separated. Claims of the Invention A hydrocyclone comprising a housing, CELLO which has a discharge chamber installed at the exit of the heavy phase with working surfaces of a spiral shape placed on its axis with an inclination opposite to the inclination of the spiral motion path of the heavy phase, characterized in that hydrocyclone at varying concentrations of the divided suspension, the discharge chamber at the location of the working surfaces is made in the form of two nozzles adjacent to each other, the outer of which installed with the possibility of axial movement. I Sources of information taken into account in the examination 1. USSR patent 483819, cl. B 04 C 5/14, 1970. 7 ////