SU973173A1 - Hydrocyclone - Google Patents

Description

(54) HYDROCYCLONE

one

The invention relates to the classification of granular materials in an aqueous medium and can be used in many areas of the national economy: mineral processing, construction, chemical, oil refining, food industry and for wastewater treatment.

Increasing the efficiency of separation in hydrocyclones is produced by making changes in their design, for example, by upgrading the sand packing, the drain pipe, the inside surface of the hydro cyclone and, in particular, by developing devices for supplying fresh water to the hydro cyclone in addition to the water supplied with the original feed. A hydrocyclone is known, including a case made in the form of two concentrically arranged cylinders, with the lower part of a cylinder of smaller diameter, with the aim of increasing the efficiency classification, equipped with a conical

2

element, and an additional water is supplied to the hydrocyclone l.

A disadvantage of the known hydrocyclone is a high dilution of the drain in connection with the additional supply of fresh water. If the dilution of the drain exceeds the enrichment required for the subsequent redistribution, the drain must be pre-thickened, which entails an increase in production areas and the need to install additional equipment.

The closest to the invention to the technical essence and the achieved result is hydroinclone,.

15 craving cylindrical housing with a taagential inlet, a drain and a sand outlet, a chamber for unloading the cavity.

The disadvantage of the famous hydroclip

Claims (2)

20 is that the supply volume of the cyclone cyclone increases due to the circulating part of the drain and, as a consequence, the need to install more nosy pumps to process the increased volume of pulp. The purpose of the invention is to increase the efficiency of classification by providing a finer drain. The goal is achieved by the fact that a hydrocylon having a cylindrical body with a tangential inlet, drain and sand pipes, a chamber for unloading the drain, it is equipped with additional pipes with connecting pipe and a locking device, while additional pipes are installed on the chamber for unloading the drain and on the cylindrical body parts. FIG. 1 shows a hydro cyclone, general view; in fig. 2 is a sectional view in FIG. one; in fig. 3 shows a section BB in FIG. in fig. 4 - hydrocyclone, top view. A hydrocyclone consists of a cylindrical O body 1 with a tangential inlet nozzle 2, a drain nozzle 3, a sand nozzle 4, a nozzle 5 for receiving a part of the drain from nozzle 6 with a locking device 7, a discharge pipe 8 that goes further into the process, measures 9 for unloading the drain and the pipe 10 connecting the pipes 5 and 6. The hydrocyclone operates as follows. Under the action of a centrifugal force, relatively large and heavy particles of solid are thrown against the wall of the hydrocyclone, and then discharged through the sand nozzle 4. The thinnest and lightest particles are concentrated closer to the center and unloaded through the discharge nozzle 3 into the cylindrical chamber 9 for unloading the drain. It has two outlet pipes - a pipe 8, through which the drain is directed further into the process, and a pipe 6 with a valve 7, through which a part of the drain, a passage further along the joint 3 to the separation pipe 10 and a pipe 5, due to the presence izhektsionnogo effect sucked jet source power supplied from the nozzle 2, back into the hydrocyclone. Circulation of a part of the drain from the chamber to unload it into the power supply chamber through nozzles 5 and 6, the connecting pipe 10 helps to reduce the size of the hydrocyclone feed and, consequently, increase the yield of fine particles into the drain. As a consequence, it is possible to obtain a finer drain with the same density (as compared with the operation of a hydro cyclone without circulation of the drain), or a drain of the same size, but with a higher density. At the same time, the efficiency of the classification aa increase in the drainage zone and the washing in this zone of large particles by the circulating part of the drain rises. Claims of the invention A hydrocyclone containing a cylindrical housing with a tangential inlet nozzle, a drain and a sand nozzle, a discharge chamber, characterized in that, in order to increase the classification efficiency by providing a finer drain, it is equipped with additional nozzles and a connecting pipe, and a stop device, wherein additional nozzles are installed on the discharge chamber and on the cylindrical part of the housing. Sources of information taken into account during the examination 1. USSR author's certificate No. 540679, cl. In O4, 1974. 2. US patent number 2981413, cl. 209-211, 1961. Az