SU1585018A1 - Separator - Google Patents

Abstract

The invention relates to the mechanical separation of materials and can be used in the metallurgical, woodworking, chemical, food and other industries of the industry. The purpose of the invention is to increase the separation efficiency due to the separation of the intermediate fraction. The separator contains a cylindrical body 1, in the upper part of which there are tangential inlet 2 and a cylindrical nozzle 3 of a gas outlet containing a fine fraction of the separated material. In the lower part of the housing 1, along its axis there is a branch pipe 4 for coarse fraction withdrawal, bottom inlet 5 with swirler 6, propellant 7 and breaker washer 8 for supplying gas stream with source material to separator and chamber 9 for collecting and withdrawing coarse fraction. In the middle part of the housing 1 a circular louvered grill 10 is installed, on the outer side of which there is a sealed chamber 11 with a bunker outlet 12 of the middle fraction and a tangential inlet for supplying an additional gas stream. Through the inlet 2, clean gas is supplied and, twisting, with peripheral flow is supplied to the housing 1. In the center of the housing 1, a part of the particles in equilibrium state is captured by the plates of the lattice 10, is fed into the chamber 11 and is discharged from the separator. The decisive factor for the penetration of particles of a certain size into the chamber 11 is the magnitude of the gas flow through its tangential entry. The fine fraction blown out of the total flow by the gas entering through the grids 10 is carried away through the nozzle 3. The flat plates of the louvered grid 10 are turned in such a way that the gas supplied from the tangential inlet slides along them. 2 Il.

Description

The invention relates to the mechanical separation of materials and the model to be used in the metallurgical, woodworking, chemical, food and other sectors of the Industry, where it is necessary to separate solid material for three days - large, medium and small. production of wood chip materials.

The purpose of the invention is to increase the separation efficiency with the ability to control the dispersed composition of the Intermediate fraction.

FIG. 1 shows a separator, a longitudinal section; in fig. 2 - the same, cross section (in the middle part)

The separator contains a cylindrical body 1, in the upper part of which there is a tangential inlet 2 and a cylindrical pipe 3 of the light fraction. In the lower part of the housing 1 there is a branch pipe 4 of the coarse fraction and a branch pipe 5 of the lower input. Along the axis of the housing 1, there is a swirler 6 with a displacer 7 with a fender 8. The chamber 9 is designed to collect and withdraw a large fraction. In the middle part of the housing 1 there is a circular louvered grill 10, on the outside of which there is a sealed chamber 1.1 with a bunker outlet 12 of the middle fraction and with a tangential inlet 13 for supplying clean gas. Flat plates 14 louvre 10 have

5 Q

,

about

five

0

five

turning in such a way that the gas supplied from the pipe 13 slides along them.

The separator works as follows.

The dust-laden gas enters through the lower nozzle 5 and, twisted by the whirling head 6, is supplied by the central flow into the working zone of the housing 1. In this case, large particles are thrown to the walls and deposited in the chamber 9, and the remaining fractions are raised by centrifugal forces. A clean gas is supplied through the upper inlet 2 and, twisting, is supplied to the cylindrical case 1 with a peripheral flow. At a certain ratio of gas pressure through the upper and lower inlets in the center of the housing 1, a steady state is observed at which part of the particles are in equilibrium, t. e. rotates on the same level, not moving up or down in the so-called zone of the ring. This fraction is captured by the louvre grill plates 14, is fed into the chamber 11 and is withdrawn from the separator. In the chamber 11, gas is blown through the tangential inlet 13 in the direction of the general flow. A complicated movement is formed between the louvered plates: a part of the gas from the zone of the housing 1 passes into the zone 11, the gas supplied to the zone 11 comes out of the socket 13, and the gas that leaves the zone 1. The inertia of the particle depends primarily on its size. Therefore, the decisive factor for the penetration of a particle of a certain size into zone 11 is the gas flow rate through nozzle 13. The fine fraction blown out of the total flow by the gas entering through louvered grilles 10 is carried away through nozzle 3.

Claims (1)

Invention Formula The separator, which includes a cylindrical body, in the upper part of which there is a tangential 0 five the inlet and the cylindrical pipe of the light fraction outlet, and in the lower part the inlet pipe with a swirler and a breaker washer and a chamber for collecting and transporting a large fraction, characterized in that, in order to increase the separation efficiency due to the separation of the intermediate fraction, are located in the middle part of the cylindrical body a sealed chamber with a louvered grille, a device for withdrawing an intermediate fraction and a tangential inlet for supplying clean gas. FIG. 2