SU952707A2 - Pneumatic metering-out and conveying apparatus for loose materials - Google Patents

Description

(54) PNEUMATIC DOSING AND TRANSPORT DEVICE FOR BULK MATERIALS

one

The invention relates to pneumatic conveying, in particular to pneumatic dosing-transport devices for bulk materials.

According to the main author. St. No. 522113, a pneumatic dosing-transport device for bulk materials is known, comprising a chamber with loading and locking devices, the bottom of which is provided with a fixed hook, made in the form of a truncated cone, a piping system, a source of mechanical oscillations located outside the chamber, and a spout covering the end a section of the transport pipeline and connected to the source of oscillations by means of a rigid rod 1.

The disadvantage of such a device is its low reliability, since during transportation of poorly flowing materials the stability of their dosing is not achieved.

The purpose of the invention is to increase reliability by ensuring the stability of the dosing of bulk materials.

This goal is achieved by the fact that the device is equipped with rods rigidly fixed

its lower ends on the upper end of the nozzle and installed at an acute angle to the vertical axis of the chamber.

In this case, the rods are made conical.

FIG. 1 shows schematically the proposed pneumatic dosing-transport device for bulk materials; in fig. 2 — node I in FIG. one.

ten

The device consists of a cylindrical chamber 1, a loading device 2 and a locking device 3 installed in the lower part of the chamber 1, a transport pipeline 4 connected to the ejector fitting 5, air ducts 6 and 7, a branch pipe 8 connected to the oscillation source 9 by means of a connecting rigid rod 10. At the upper end of the pipe 8 are rigidly fixed with their bases conical rods 11, installed

20 at an acute angle to the vertical axis of the cylindrical chamber 1. The bottom of the chamber is provided with a fixed ring 12 made in the form of a truncated cone forming an annular gap 13.

The device works as follows.

Compressed air from the compressor 14 through the air line 6 is introduced into the annular gap 13 of the chamber 1 and carries with it the material into the pipe 4 passing through the nozzle 8 connected to the source 9 of oscillations. At the same time, compressed air is introduced through the air duct 7.

In order to ensure the stability of the dosing of bulk materials, a source 9 of oscillation is transmitted, transmitting the oscillations of the nozzles, with tapered rods 11 fastened on it.

The installation will provide an annual economic effect in the amount of 40,544 rubles. and reduction of labor costs for 1500 persons.

Claims (2)

1. Pneumatic dosing-transport device for bulk materials according to auto; St. No. 522113, characterized in that, in order to increase its reliability by ensuring stability of dosing of bulk materials, it is equipped with rods rigidly fixed with their lower ends at the upper end of the nozzle and installed at an acute angle to the vertical axis of the chamber. 2. A device according to claim 1, characterized in that the rods are made conical. Information sources, taken into account in the examination 1. USSR author's certificate No. 522113, cl. B 65 G 53/40, 1974 (prototype).