SU1283197A1 - Angular ejector of pneumatic transportation unit - Google Patents

Abstract

The invention relates to inkjet technology, in particular to the pneumatic transport of bulk and flowable materials, and can be used in the mining, construction and other industries. The purpose of the invention is to reduce energy consumption by ensuring uniform air supply. The ring ejector of the pneumatic conveying installation contains an annular distribution chamber 1 with two zones 2 and 3, the first of which has a larger diameter, a nozzle 4 of compressed air supply connected to the first zone 2, a receiving 5 and an outlet 6 nozzles installed coaxially in the annular distribution chamber 1 and forming in its second zone 3 an annular nozzle 9 with longitudinal channels with a passage section increasing in the direction of air movement in the distribution chamber 1. B, the first zone 2 of the distribution chamber I with side opposite the nozzle 4 of the compressed air supply, a radial-longitudinal partition 10 is installed, forming two cavities in the distribution chamber 1. 2 Il. (WITH

Description

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The invention relates to inkjet technology, in particular, to an annular ejector for suction and pneumatic transport of bulk and flowable materials, which can be used in the mining, construction and other industries as an executive agent of various mechanisms, apparatus: charging, filling, filling, concrete, plaster, sand and shot blasting, etc.

The purpose of the invention is to reduce energy consumption by ensuring uniform air supply.

FIG. 1 shows a ring ejector, longitudinal section; in fig. 2 shows section A-A in FIG. one.

The ring ejector of the pneumatic conveying installation contains an annular distribution chamber 1 with two zones 2 and 3, the first (2) of which has a larger diameter, the nipple 4 of the compressed air supply,

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After that, the receiving pipe 14 is placed in a container with a material, for example, with a concrete solution. By means of the control valve, compressed air is supplied to the ejector, which through conduit 15 through the nozzle 4 of the compressed air supply enters the first zone 2 of the annular distribution chamber 1, where it is divided due to the flow around the receiving nozzle into two streams, the meeting of which prevented by radial-longitudinal partition 10.

From the distribution chamber 1, respectively, to different values of pressure in it, the compressed air enters the longitudinal channels 12 of different capacity, so that it continuously and evenly flows through them into the annular nozzle 9 and from it a uniform annular jet flows around the perimeter

connected to the first zone 2, receiving speed 20. At the same time in the inlet pipe

5 and outlet 6 nozzles, installed-5 creates discharge. Therefore into it

coaxially in the annular distribution box, it is pumped out of the tank conveyor 1 with nuts 7 and 8 and the formed material enters the outlet

The annular nozzle 9.pipe 6 in its second zone 3, where it is picked up by the collar of the first zone 2 by an annular distributional air stream and from the high cattle chamber 2 on the opposite 25th is thrown into the place of installation,

compressed air supply pipe 4 to the side If necessary, the radial-longitudinal partition 10 is installed, and an equalizer is installed on the receiving pipe 5, made in the form of several radial-longitudinal blades 11 on it, which are in contact with the wall of the annular distribution chamber 1 in its second zone 3 and thereby forming longitudinal channels 12 in front of the annular nozzle 9. The blades 11 on the receiving nozzle 5 are located with an increase in the angle between them in the direction of the movement of compressed air in distribute noy chamber 1, i.e. angle ai "2" 3 "4, whereby the longitudinal channels 12 have different air cross sections and, therefore, different resistances for its movement.

Ring ejector works as follows.

For work on the suction and pneumatic transport of bulk or flowable materials, a receiving pipe 14 is connected to the nipple 13 of the receiving pipe 5 with a suitable suction material (not shown). The compressed air supply pipe 4 is connected to a source of compressed air via a control valve (not shown) connected to it by means of a pipeline 15.

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a longer distance to the outlet nozzle 6 connects the conduit through which the material goes to the right place.

Claims (1)

Invention Formula An annular ejector of a pneumatic conveying installation that contains an annular distribution chamber with two zones, the first of which has a larger diameter, a compressed air supply nozzle connected to the first zone of the distribution chamber, a receiving and exhaust connections coaxially installed in the distribution chamber and forming an annular nozzle in its second zone with longitudinal channels for the passage of ejecting air, characterized in that, in order to reduce energy intensity by ensuring uniform air supply, it is provided A radial-longitudinal partition wall installed in the first zone of the distribution chamber on the side opposite to the compressed air supply nozzle to form two cavities, and the longitudinal channels for the passage of the ejecting air are made with a passage section increasing in the direction of air movement in the distribution chamber. After that, the receiving pipe 14 is placed in a container with a material, for example, with a concrete solution. By means of the control valve, compressed air is supplied to the ejector, which through conduit 15 through the nozzle 4 of the compressed air supply enters the first zone 2 of the annular distribution chamber 1, where it is divided due to the flow around the receiving nozzle into two streams, the meeting of which prevented by radial-longitudinal partition 10. From the distribution chamber 1, respectively, to different values of pressure in it, the compressed air enters the longitudinal channels 12 of different capacity, so that it continuously and evenly flows through them into the annular nozzle 9 and from it a uniform annular jet flows around the perimeter speed. At the same time in the inlet pipe If necessary, transport ma a longer distance to the outlet nozzle 6 connects the conduit through which the material goes to the right place. Invention Formula An annular ejector of a pneumatic conveying installation that contains an annular distribution chamber with two zones, the first of which has a larger diameter, a compressed air supply nozzle connected to the first zone of the distribution chamber, a receiving and exhaust connections coaxially installed in the distribution chamber and forming an annular nozzle in its second zone with longitudinal channels for the passage of ejection air, characterized in that, in order to reduce energy intensity by ensuring an even supply of air, it is provided A radial-longitudinal partition wall installed in the first zone of the distribution chamber on the side opposite to the compressed air supply nozzle to form two cavities, and the longitudinal channels for the passage of the ejecting air are made with a passage section increasing in the direction of air movement in the distribution chamber. BUT - 12 fie.g