SU1710146A1 - Pneumatic separator - Google Patents

Description

The invention relates to the field of mineral processing); in particular, coal and ores in the air.

A known pneumatic separator of the type SP contains a duct in which a single-deck deck is installed, hinged to the frame of a duct mounted on supports and mounted on a swing frame.

The reciprocating motion of the box with the deck is carried out by means of an eccentric-connecting rod mechanism, also mounted on the rotating frame. The inertia forces of the swinging masses of the deck are balanced with the help of two shafts with counterweights in the drive mechanism.

The angle of throwing of material on the working surface of the deck, which is one of the main parameters affecting the separation efficiency, is controlled by changing the angles of inclination of the deck by moving the lower support carriages with screws, and the transverse angle of inclination is adjusted by a screw mechanism.

The disadvantage of such a separator design should be considered the low separation efficiency, and the presence of one single-sided deck does not allow one to balance the oscillating mass, since it constantly changes with a change in size. we are loads. In addition, the use of complex design balancing mechanism in the separator creates inconveniences in operation.

Also known is a pneumatic separator, including a box with a perforated deck, a swing frame with a frame lifting mechanism, an air duct with pulsators, and collections of finished fractions. The deck of such a separator is made in the form of separate, sequentially located, 1.O1 fields, interconnected by elastic U-shaped elements. The eco-centric drive mechanism drives the decks in opposite directions to balance the masses.

The disadvantage of such a separator is the low efficiency of the separation of small lumpy material due to the inability to adjust the height of the bed layer, in which the material is divided by density into countercurrent.

The purpose of the invention is to increase the efficiency of enrichment.

This goal is achieved by placing the activator above the surface of the b-pores. The activator is a frame with adjustable partitions. From the drive with the eccentric mechanism of the deck and

the activator moves in opposite directions. The activator is installed above the heavy fraction layer, interacts with the light fraction with adjustable partitions, and intensifies the process of its movement in the direction of unloading.

Nafig 1 shows a diagram of the proposed pneumatic separator with an activator; in fig. 2 - pneumatic separator, general view, side view; in fig. 3 shows section A-A in FIG. 2; in fig. 4 is a view B in FIG. 3

The pneumatic separator consists of deck 1, over which the loading device 2 is installed, exhaust umbrella 3, activator 4, discharge chutes 5, working surface 6, supports 7, pivoting frame 8, deck 9 angle adjustment mechanism 9, air duct 10, diffusers 11 , the mechanism 12 of the drive separator, Sh-. tunas 13 and 14 of the wallpaper sides 15, of the partitions 16 of the activator mounted at a distance a above the working surface 6.

The deck 1 is divided into two floors by two diffusers 11 connected to the air duct 10. Above the diffusers are covered with an air-permeable material, for example a mesh (metal or polymer), which is the working surface 6. The diffusers 11 are fixed on the frame 8, which by means of the connecting rod 13 receives reciprocating movement from an eccentric drive mechanism 12. To change the overall angle of the deck, the frame is equipped with a lifting mechanism 9. Technological air is supplied under deck 1 (for example, from a fan) via air duct 10. On the sides, deck 1 is bounded by fenders 15, and at the ends of the trays 5. Above the surface of the deck, an activator 4 is installed on the supports 7, which returns forward movement. The activator is a frame with transverse partitions 16. In the longitudinal walls of the frame of the activator 4 there are grooves and screws with nuts for adjusting the inclination of the partitions 16, fixing their position (Fig. 4). Umbrella 3 and loading device 2 are placed above the working surface of the deck.

The source material entering through the loading device 2 on the working surface 6 of deck 1. under the action of vibration and the ascending air jet is divided in density, that is, particles of material in an artificially created force field move in mutually opposite directions. At the same time in the place of loading there is a separation layer (bed).

allowing the light fraction of the separated material to float on the surface of the bed, while the heavy fraction particles sink. Activator 4 is installed above the bed layer formed by a heavy fraction. The activator receives a reciprocating movement from the actuator and the walls 16 are affected by layers of material formed by the light fraction, improving the separation process and activating the unloading of the light fraction. Depending on the material to be separated, the slope of the dividers 16 of the activator 4 is adjusted and fixed with a screw.

The oscillating masses of deck 1 of iktivaura 4 mutually balance each other, as a result of which the dynamic loads of the operating separator on the ceiling are reduced.

Claims (2)

1. A pneumatic separator, including a box with a perforated deck, a swing frame, a mechanism for lifting the frame, an air duct located under the deck, and collections of finished fractions, characterized in that the separator is equipped with an activator installed above the deck that can be moved to opposite to the phase with it and made in the form of an additional frame with partitions placed perpendicular to the direction of movement of the material and with the possibility of changing the angle of inclination. 2. A separator according to claim 1, of which there is a frame so that the activator frame is mounted for movement by means of rods. loadable. Peka dirktsa ig.2 Air dusted with T tepa fraction Aa View 6 Fig. "