RU2710353C1 - Vibration and pneumatic separator - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: invention relates to separation of fine granular materials. Disclosed is vibration and pneumatic separator, comprising housing, equipped with receiving hopper, working chamber with deck, installed on supports, vibration of which creates electric motor. Working chamber is equipped with a spring for compensation of vibrations; the device additionally contains receivers of light and heavy fractions of the product. Loading hopper is equipped with a gate shutter with a mechanical drive, and the working chamber of the device contains a deck inclined to a horizontal plane, in holes of which the air is supplied by a fan through a branch pipe. Deck surface features zigzag shape. Working chamber is connected to a spring equipped with a mechanism for adjustment of its compression force, and on the deck at the point of unloading of the heavy fraction there is an air stopper in the form of a flat plate.

EFFECT: invention provides higher efficiency of separation of material into fractions of different density.

1 cl, 3 dwg

Description

The invention relates to the field of separation of finely divided bulk materials by separation and can be used both for mineral processing in the mining industry, and in other areas for solving similar problems.

The well-known "Vibratory pneumatic separator comprising a porous deck installed on the basis of a kinematic connection, a compressor, an electromagnetic exciter, characterized in that the deck is installed on the base with the possibility of free movement in a plane passing through the direction of movement of the material, perpendicular to the plane of the deck through, for example, rolling bearings.

RF patent for the invention No. 2071382, MKI: B03C 7/02; D. publ. November 20, 2008

The well-known "Vibro-pneumatic separator, consisting of a frame, a deck having zones of preliminary delamination and separate transportation, a casing, racks, drive mechanisms, consisting of a crank shaft and a connecting rod, a fan, having a suction window and a discharge channel, characterized in that the vibro-pneumatic separator is equipped with a receiver installed for a dense fraction, a guide having the ability to vertically move and adjust the angle between its plane, which is perpendicular to the deck, and the direction of movement of the mother ala, and below the deck surface the blinds are located in such a way that the plates of the blinds are equidistant from each other and connected by a lever mechanism.

RF patent for the invention No. 2551086, MKI: A01F 12/44; D. publ. 05/20/2015 g.

Closest to the claimed technical solution is the "Vibro-pneumatic separator with direct-flow deck", containing a housing equipped with a receiving hopper, a vacuum chamber, a fluidized bed divider, receivers of fractions of the seed, direct-flow deck, to which the swinging supports are rigidly fixed, an electric motor, characterized in that it is located under the bottom of the vibro-pneumatic separator and mounted on a fixed support, as well as the fact that it is equipped with a spring placed on the side of the seed fraction receivers, one end of which is connected to the housing and the second end is mounted on a fixed support, the engine control system, the input of which is connected to a three-phase AC network, the motor performs linear translational motion and is made in the form of a three-phase linear asynchronous motor, and the secondary element of the three-phase linear asynchronous motor is the vibro-pneumatic separator body itself, while the winding of a three-phase linear induction motor is connected to the output of the motor control system.

RF patent for the invention No. 2414970, MKI: B07B 4/08; D. publ. 03/27/2011

The technical result includes increasing the efficiency of separation of the material into fractions of different densities, by using a deck tilted to the horizontal plane in the working chamber and making its working surface a zigzag shape, as well as by supplying a vibration-exciting mechanism with a spring with the ability to adjust its compression force, compensating for the vibration of the deck, as well as by installing on the deck in the place of unloading of the heavy fraction of the airlock in the form of a flat plate.

The technical result is achieved due to the fact that the "Vibro pneumatic separator" contains a housing equipped with a receiving hopper, as well as a working chamber with a deck mounted on supports, the vibration of which is created by the electric motor. The latter, in turn, is connected to the working chamber through an eccentric shaft and a V-belt drive. In this case, the working chamber is equipped with a spring to compensate for vibrations. The device also contains receivers of light and heavy fractions of the product, as well as a motor control system. In this case, the loading hopper is equipped with a mechanism for regulating the performance of the device in the form of a slide gate with a mechanical drive. The working chamber of the device contains a deck, inclined to the horizontal plane, into the openings of which a fan is supplied with air through the pipe, creating a “fluidized bed” with the product. Moreover, the surface of the deck is made in a zigzag shape. In turn, the working chamber is connected with a spring equipped with a mechanism for adjusting the compression force, which provides compensation for the vibration of the deck. In addition, an airlock in the form of a flat plate is installed on the deck at the place of unloading of the heavy fraction.

Vibro-pneumatic separator is illustrated by drawings, diagrams in FIG. 1.2 and 3

Fig 1 - Vibro-air separator (general scheme);

FIG. 2 - Vibro-pneumatic separator (scheme of the working surface of the deck);

FIG. 3 - Vibro-pneumatic separator (diagram of the principle of the separator working process).

The “Vibropneumoseparator” proposed as an invention comprises a housing 1, a loading hopper 2 with a capacity control mechanism in the form of a slide gate 3 with a mechanical drive, a working chamber 4, equipped with a deck 5 inclined to the horizon, with a working zigzag surface. Under the working chamber 4 through the pipe 6, air is supplied by the fan, which, passing through the openings of the deck, creates a “fluidized bed” with the product, deck 5 of the working chamber 4 is mounted on the vibration mounts 7 providing directional vibration, the working chamber is connected through an arm to an eccentric shaft 8 and a V-belt transmission with an electric motor 9, which transmits vibration to the working chamber 4. To compensate for the vibrating force, in the form of recoil, a spring 10 is installed between the working chamber and the housing 1 with a mechanism for adjusting the compression force 11. a deck 5 in the place of discharge of the heavy fraction is mounted aerozatvor 12 in the form of a flat plate. The device is also equipped with receivers of light 13 and heavy 14 fractions of the product.

Vibro-pneumatic separator works as follows.

Bulk material from the loading hopper 2 is fed evenly through the slide gate 3 and enters the working chamber 4 on deck 5. The direction of air movement in the working chamber 4 is created by forcing air through the pipe 6 and distributed along deck 5. Directional vibrations are created by the electric motor 9 through the eccentric shaft and V-belt transmission 8 to flat vibration mounts 7, providing directional vibration of deck 5. Under the action of air-vibrational forces on the material, the material is stratified on deck 5. Under the influence of air In this case, a lifting force is created, displacing the light fraction into the upper sublayer of the separated product, and due to the inclination of the vibrating deck, the light fraction moves toward the receiver of its discharge 13. The lifting force of the air flow is insufficient to displace the heavy fraction into the upper sublayer and the heavy fraction, mechanically interacting with vibrating deck 5, moves to the receiver of the heavy fraction 14. In addition, on deck 5 in the place of unloading of the heavy fraction, an airlock 12 is installed, which enhances the aerodynamic effect and so azom achieved highest purity product separation.

Vibro-pneumatic separator, differs from the known ones in that it has flat vibration mounts 7 made of spring steel, providing directional vibrations to the working chamber 4; special vibration compensator 11, allowing fine tuning of the rigidity of the supports (Fig. 1); special design deck 5, having a zigzag shape (Fig. 2) of the working surface, which allows to increase the separation efficiency due to the fact that the air exerts pressure on the product not only from below, but also along the edges, which in turn leads to an increase in the specific exposure area air per product; as well as the presence of an airlock 12 on deck 5 in the place of unloading of the heavy fraction, which enhances the aerodynamic effect and thus the highest purity of product separation is achieved.

The vibropneumoseparator proposed as an invention improves the efficiency of separating the material into high and low density fractions by using a deck tilted to the horizontal plane in the working chamber and making its working surface a zigzag shape, as well as by supplying a spring with a mechanism for adjusting its compression force, which provides vibration compensation decks, and also due to the installation on the deck at the place of unloading of the heavy fraction of the airlock in the form of a flat plate.

Claims (1)

A vibro-pneumatic separator containing a housing equipped with a receiving hopper, a working chamber with a deck mounted on supports, the vibration of which is created by an electric motor, the latter, in turn, connected to the working chamber through an eccentric shaft and V-belt transmission, while the working chamber is equipped with a vibration compensation spring, the device, in addition to Moreover, it contains receivers of light and heavy fractions of the product, as well as an electric motor control system, characterized in that the feed hopper is equipped with a control mechanism that produces the device in the form of a slide gate with a mechanical drive, and the working chamber of the device contains a deck inclined to the horizontal plane, into the openings of which a fan is supplied with air through the pipe, creating a “fluidized bed” with the product, while the deck surface is made in a zigzag shape, which, in turn, is working the chamber is connected to a spring equipped with a mechanism for adjusting its compression force, which provides compensation for vibration of the deck, in addition, aerosol is installed on the deck at the place of unloading of the heavy fraction Cottage in the form of a flat plate.

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