SU1000110A1 - Hydraulic cyclone - Google Patents

Description

(54) HYDROCYCLONE

The invention relates to a device for separating granular materials by size in a liquid medium and can be used in non-ferrous and ferrous metallurgy, chemical and construction industries.

Known .Hydrocyclone, including a case, a tangential inlet, a sand nozzle and a drainage nozzle, inside which a pipe for supplying additional water 1 is placed along the longitudinal axis of the hydrocyclone.

Pidcha water in the central part of the hydrocyclone leads to an increase in the efficiency of classification by reducing the density of the pulp. However, this design does not realize the possibility of additional promotion of the pulp fed into the hydrocyclone and, therefore, is not used. It is possible to further improve the separation efficiency of the fine fractions of the material.

The closest to the proposed technical essence and achievable. The result is a hydrocyclone, comprising a housing with a tangential inlet, drain and Peskovy branch pipes, installed with the possibility of axial movement inside the drain

branch pipe pipe supplying additional water 23.

A disadvantage of the known hydrocyclical is the low quality of the drain due to the insignificant rotational speed of the pulp in the zone adjacent to the longitudinal axis of the hydrocyclone.

The purpose of the invention is to improve the quality of the drain by providing an increased rate of rotation of the flow in the zone adjacent to the hydrocyclone axis. The goal is achieved by

15 that in a hydrocyclone containing a cylindrical body with a tangential inlet, drain and Peskovy pipe-. kami mounted coaxially with the possibility of axial movement inside

20 drain pipe an additional water supply pipe, an additional water supply pipe is equipped with a device for imparting rotational motion to the flow, made in the form of a cylindrical chamber with an open bottom end directed toward the sand nozzle of a tidrotsiklon, planted with a flat bottom with a central hole on the supply pipe additional

30 body water, while on the inside

The bottom side is equipped with a disk with tangential channels.

FIG. 1 shows a hydrocyclone, a general view of FIG. 2 shows section A-A in FIG. 1., i

 Hydrocyclone consists of CYLINDROCONI

a casing body 1, a tangential inlet nozzle 2, a sand nozzle: 3, a drain nozzle 4, through which an auxiliary water supply pipe 5 with a device for imparting rotational motion to the water is inserted into the hydrocyclone. The device for imparting rotational water includes a hollow cylindrical twisting chamber open at one end and having a flat bottom with a central hole 7, with which it is mounted on the additional water supply pipe 5, which is directed with the open end towards the sand fitting 3. And on the inside of the bottom the twisting chambers reinforced a disk 8 with tangential channels 9 in the disk body and a central blind recess 10 for supplying water to the tangential channels.

The device for imparting rotational motion of the fluid is adapted to move along the longitudinal axis of the hydrocyclone. .

Hydrocyclone works as follows.

Pulp under pressure enters through the inlet nozzle 2 into the housing 1 / acquiring a rotational motion, which provides a preliminary classification of the material with unloading of the fines through the drain nozzle 4 and coarse through the sand nozzle 3. At the same time through the pipe 5 under pressure into the hydrocyclone serves water, which through the central a hollow groove 10 and tangential channels 9 of the disk 8 enters the chamber b. twisting, where it acquires a rotational motion. The exit from the swirling chamber with a uniform rotating flow; the water transfers the energy of its rotation to the pulp, providing an increase in the speed of its rotation in the adjacent flow. hydrocyclone axis in the zone where the separation of the smallest fractions of the material. This leads to an additional improvement in the quality of the drain in comparison with the mere dilution of the pulp with water. In the absence of water pressure in the pipeline, it is not clogged by the material, since there is no pressure in the axial zone of the hydrocyclone.

As a result of hydrocyclone tests, it is established that the content of the class of 0.074 mm in the discharge increases by 5.2%, and the classification efficiency increases by 25.1%. The expected economic effect is 100 thousand rubles.

Claims (2)

Invention Formula A hydrocyclone containing a cylindrical housing with a tangential inlet and Peskov nozzles installed coaxially with the possibility of axial movement within the drainage pipe (Chopping the supply-additional water pipe, characterized in that, in order to improve the quality of the drain by providing an increased flow rate in the adjacent to the axis of the hydrocyclone zone, the auxiliary water supply pipe is provided with a device for imparting rotational motion to the flow, made in the form of a cylindrical chamber with an open lower end, directed to the side, a sandy nozzle of a hydrocyclone, mounted on a flat bottom with a central hole on the pipe for supplying additional water, with a tangential canapes disk mounted on the inside of the bottom. Sources of information taken into account in the examination 1, Cooks A.I. Hydrocyclones at the processing plants. M., Ned) and 1978, p. 194. 2. Authors certificate of the USSR 350519, cl. B 03 B 5/34, 1967.