SU1539144A1 - Feeder of pneumatic conveying installation for loose material - Google Patents

Abstract

This invention relates to the pneumatic supply of bulk materials. The purpose of the invention is to reduce energy consumption. The feeder of the pneumatic conveying installation contains a hopper 1 with a hole 2 above which cylinder 6 is placed with a movable cup 10, through which the nozzle 3 passes through the gas supply nozzle 15. The flange 4 on the nozzle 3 overlaps the section of the cup 10. The cavity of the cup 10 is connected with a hole 5 with the nozzle. When compressed gas is supplied through the nozzle 3, the nozzle 10 under the action of pressure rises in the cylinder 6 and opens the opening 2 for the passage of material. After stopping the gas supply through the nozzle 3, the cup 10 under the action of its own weight lowers and closes the hole 2. 2 Il.

Description

no passage of material, in which there is no co-formation for a given grain size of material.

The lower end of the cylinder 6 is located relative to the bottom of the hopper 1 at a height of

friction cone part of his stuff.

Upon reaching the working pressure, the force of gas pressure on the bottom area of the glass 10 from the inside, overcoming the maximum stroke of the glass 10 (the sum of the 35 weight of the glass 10 and the resistance of the threshing shaft of the glass 10 from the bottom of the bunker to the glass, raises the glass ten

and opens the passage to the material under the cylinder 6 for operation. The material flows under the cylinder 6 between the supports 7 by the self-Q Q at an angle of repose to the discharge opening 2 and is further transported by the gas flow into the pipeline.

1 until the position of the stop in the cap 8 and the stroke of the cap 8 along the threads of the cylinder 6).

The glass 10 when lowering does not completely exit the wall from the cylinder 6, and the height of the conical outer part of the wall of the glass is greater than the height of the material passage between the bottom end of the cylinder 6 and the bottom of the hopper 1.

Cover 8 relative to cylinder 6

The medium that does not have time to be displaced by the cup 10 from under the cap 8 through a stop in a known manner, for example 45 is a sufficiently small gap between the cylinder 6 screw. And the cup 10, absorbs the impact of the solid 3 attached to the cylinder 6 through the canal 10 into the cap 8. the cover 8 ways To displace the cover 8 relative to the nozzle 3, the pressure not changing the position of the nozzle decreases the pressure of the nozzle to a pressure that is minimal relative to the hopper 1. For example, with help, but still enough to leave a nut 12 , lock nuts 13 and cap about transportation (i.e. when

the speed in the pipeline is still sufficient so that the material does not fall out of the flow on the walls due to the force of gravity). In this mode of operation, the cup 10, overcoming the pressure force of the gas in the nozzle 3, under its own weight, lowers and clamps the material at the inlet under the cylinder 6, the stopping nut 14, closing the material access from the top through the leaks to the cup 10 or with . p. Nozzle 3 coaxially communicated with gas supply pipe 15.

The length of the inner cylindrical part of the glass 10 is greater than the distance between

friction cone part of his stuff.

conduction of material. The position of the bottom end of the glass at this moment is shown in FIG. 1 dash line. The gas jet of the nozzle 3 removes residual material from the pipeline, after which the gas supply is stopped.

If the end of the work occurs after the emptying of the hopper 1, the canister 10 is lowered to the bottom of the hopper 1 or to the granules of material remaining on the bottom. The material is re-filled. The slots and glass passages 10 between the granules are filled up with material.

The operation of the feeder is repeated.

The optimum opening height of the flow area for the passage of the material under the glass 10 is established by moving the cover 8 along the threads of the cylinder 6, for which the cover 8 must be disconnected from the nozzle 3 (the cap nut 14, the lock nut 13 and the nut 12 are unscrewed), then the cover 8 is locked and connected with nozzle 3 (nut 12, lock nut 13 and cap nut 14 are screwed in).

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Claims (1)

Claims of the Invention A pneumatic conveying apparatus for bulk material comprising a hopper with a discharge opening in the bottom and installed above the latter in the direction of the material supply by a vertical nozzle connected to the gas supply pipe, attached to the bottom of the hopper with a gap and concentrically covering the nozzle of a hollow cylinder with a lid and freely mounted in the hollow cylinder coaxially with its bottom upward glass, characterized in that, in order to reduce energy intensity, it is equipped with a nozzle fixed on the nozzle with the possibility of CE5 passage Cheney glass bead, wherein a wall of the nozzle above the collar has an opening, the lower portion of the outer cup is frusto-facing smaller base to the outlet opening of the cone, and cylinder cover. the bottom of the glass is made with a central hole in which the said nozzle is mounted for vertical movement, and the gas supply nozzle is arranged coaxially with the nozzle. 0 Fie.2