SU1613414A1 - Apparatus for introducing pulverulent material to pneumatic transporation unit - Google Patents

Abstract

The invention relates to devices for the pneumatic transport of powdered materials as a batch and can be used in all parts of the national economy for pneumatic conveying of bulk materials. The purpose of the invention is to increase reliability. The powder material is loaded into the chamber 1 and compressed air through the pipelines 4 is aerated and pushed into the zone of the intake cone nozzle 5. Because the pressure in the transport pipe 3 is lower than in the chamber 1, the aerated material rushes into the pipeline through the intake conical nozzle 5. At a time sufficient to fill a portion of the transport pipeline with aerated material, compressed air is supplied through pipeline 7 to the hollow ring 6. Air passing through the openings of the sides of the hollow triangular ring 6, p ohodit through the material layer to the bottom of chamber 1 as the air curtain and cuts the amount of bulk material. 3 il.

Description

Fig. /

The invention relates to devices for the pneumatic transport of powdered materials in portions and can be used in all parts of the national economy for the pneumatic transport of bulk materials.

The purpose of the invention is to increase reliability,

In Fig.1 schematically shows the proposed device; Fig. 2 shows the device in action at the time of air supply through the ring and the principle of the formation of the next portion; FIG. 3 shows an intake funnel device with a triangular cross section.

The device comprises a chamber 1 with a filling opening 2. a transport pipeline 3, air supply pipes 4 for aerating the material. At the end of the transport pipeline 3, an intake conic nozzle 5 is installed. The end has a triangular cross section with a hollow ring 6, into which compressed air is periodically supplied through line 7. In the hollow ring 6 triangular cross section, side 8 is a continuation of the conical nozzle body 5. through which periodically compressed air is supplied. Side 9 of the triangle is perforated and installed at an angle to the horizon so that the air streams reaching the bottom of the pneumatic transport chamber deviate from it in the direction of the opening of the intake funnel (Fig. 2). Side 10 is also perforated and inclined to the horizon so that the air streams are directed inside the intake conical nozzle towards the opening of the transport pipeline. Fig. 2 shows the formed portion 11 of the powder material in the transport pipeline and the time at which the next portion 11 is formed.

The device works as follows.

The powder material is loaded into the chamber 1 and compressed air through the pipelines 4 is aerated and pressed into the zone of the conical nozzle 5. Due to the fact that the pressure in the transport pipe 3 is lower than in the chamber 1, the aerated material rushes into the pipeline through the nozzle 5. At some point, sufficient to fill a portion of the transport pipeline with aerated material, compressed air is supplied through pipeline 7 to the hollow triangular cross section of the ring 6 of the nozzle 5, Air, passage through

the openings of side 9 of the hollow ring, passes through the layer of material to the bottom of chamber 1 and, like an air curtain, cuts off some part of the portion 11 from the main mass of material. Streams formed air

0, the curtains, reflected from the bottom of the housing 1, are directed toward the opening of the nozzle 5, pushing the cut material into the funnel. Trickles of air from the side 10 of the hollow ring 6 pick up falling into the nozzle 5

5 material and push it into the pipeline 3 at a sufficient distance from its end.

Then the air supply through line 7 is stopped. Due to the increased pressure in chamber 1, aerated material

0 enters the area of the nozzle 5, the air supply is again switched on via conduit 7 to ring 6, and the process of forming portions is repeated. In the period between the formation of two portions of air with material from

5, chamber 1 pushes portion 11 through the conduit and remains an interlayer between the two portions after forming the next portion 11.

Thus, all the powdered material loaded into chamber 1 is fed into transport pipeline 3 in certain portions and is transported in this form to the place of delivery.

Claims (1)

5 claims A device for inserting a powdered material into a pneumatic transfer system, containing a sealed container with an inlet, placed in the last outlet with an inlet conical nozzle mounted on its lower free section, oriented upwards and made on the inner surface with an annular cavity, 45 communicated with a source of compressed air, and the cavity of the tank, characterized in that, in order to increase reliability, the annular cavity is formed adjacent to the inner surface of the intake 50 conical nozzles are perforated conical surfaces, the top of which is oriented with the top of the cone down, and the bottom - up. Editor Y. Sereda Fig.Z Compiled by E.Guchkova Tehred M. Morgental Fig.E Proofreader L. Beskid