SU1574512A1 - Vibration elevator - Google Patents

Abstract

The invention relates to vibratory conveying devices and can be used in technological schemes of powder metallurgy. The goal is to increase the classification efficiency of the transported material. The vibro-elevator contains a working body in the form of a vertical pipe (T) 3, on the outer surface 4 of which two spiral trays 5 and 6 are fixed. Inside the T 3 there are pour-over shelves made in the form of conical shells (CO) 11 and shells 12 that alternate with each other a truncated cone. KO 11 and shells 12 are installed with respect to the inner surface 14 of T 3 with an annular gap 13. KO 11 vertices are directed upwards, and smaller bases 16 of sheath 12 are directed downwards. The vertical projections of the KO 11 are overlapped by the vertical projections of the shells 12 located under them. In the upper part of T 3 there is a pipe 19 of the outlet of the finished product. When the vibro-elevator is in operation, the transported material falls onto the shells 12 and KO 11 and, rolling down them gradually down, disperses at the same time. Particles of a given size are picked up by air flow, carried into the annular gap 13 and further upwards into the socket 19. By virtue of the fact that with a small height of the working member it is possible to create a large scattering surface, the classification of the transported material is improved. 1 il.

Description

The invention relates to vibratory conveying devices and can be used in technological schemes of powder metallurgy.

The purpose of the invention is to increase the classification efficiency of the transported material.

The drawing shows a vibroilevoo, longitudinal section.

Vibro-elevator contains a working body suspended from support 1 using elastic elements 2, made in the form of pipe 3. Two spiral trays 5 and 6 are fixed on the outer surface 4 of the latter. Tray 5 is equipped with a receiving pipe 7 of the original product and a discharge pipe 8 having an outlet to the inside of the pipe 3. Tray 6 has an inlet 9, which is a pallet of pipe 3, as well as a discharge pipe 10 of undersized product. Inside the pipe 3 below the discharge port 8, pouring shelves in the form of conical shells 11 and shells 12 in the form of truncated cones are installed in alternate order. The shells 11 and 12 are installed with an annular gap 13 with respect to the inner side surface 14 of the pipe 3. The tops 15 of the conical shells 11 are directed upwards, and the smaller bases 16 of the shells 12 are directed downwards. The vertical projections 17 of the conical shells 11 are overlapped by the vertical projections 18 of the truncated conical shells 12 located under them. The upper part of the rough 3 is connected with the pipe 19 of the finished product removal system.

pneumatic transport. In the lower part of the pipe 3 there is an air supply under pressure. On the pipe 3 is also attached to the vibration exciter 20 screw oscillations.

The device works as follows.

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The working body receives from the vibrator 20 screw oscillations, under the action of which the starting product from the receiving pipe 7 begins to be transported up the tray 5. When it reaches the unloading pipe 8, the material being transported spills into the pipe 3. Falling on the shells 11 and 12 and rolling down along them under the action of vibration, the material is simultaneously scattered and particles of a given size are picked up by the air flow, carried into the annular gap 13 and further upwards into the outlet 19 of the finished product. The coarse fraction of the starting product is poured into the receiving pipe 9 and is discharged upward through the spiral tray 6 and further through the discharge pipe 10 to the refluxing-1. Due to the fact that the vertical projections 17 of the conical shells 11 are overlapped by the vertical projections 18 of the truncated conical shells 12 located under them, 1 at a small height of the working body it is possible to create a large total surface of material classification, which increases the classification efficiency of the transported material.

Claims (1)

Formula iso 15745 et al. A vibro-elevator containing a working body in the form of a vertical pipe, on the outer surface of which there are two spiral transporting chutes, pouring shelves located inside the working body, a pipe for discharging the finished product and a screw oscillator, which is fixed on the working body, characterized in that classification of the transported material, ne 0 12 .6 placer shelves are made in the form of alternating conical shells and shells in the form of a truncated cone, installed with an annular gap relative to the inner side surface of the working body and relative to each other, with the tops of the conical shells pointing upwards, and the smaller bases of the truncated conical shells downwards The vertical projections of the conical shells are overlapped by the vertical projections of the truncated conical shells located under them.