KR20160011053A - Powder tranfer pipe for prevention device blocking of flow path - Google Patents

Abstract

The present invention relates to a powder transfer pipe for preventing clogging of a flow passage. More specifically, powder flowing inside the powder transfer pipe is condensed due to moisture and excessive introduction of powder, and the powder transfer pipe is clogged thereby. Therefore, the present invention prevents clogging of a flow passage breaking the condensed powder without an additional supply of power. According to the present invention, the powder transfer pipe preventing clogging of a flow passage comprises: a hollow pipe portion having an inlet wherein the powder is introduced and having a main flow passage therein to enable the powder introduced through the inlet to be transferred by pneumatic pressure; and a breaking unit installed inside the pipe portion to be positioned in a lower portion of the inlet and breaking condensation of the powder when the powder introduced through the inlet is condensed to be clogged in the main flow passage.

Description

[Background Art] [0002] Powder transfer pipes for preventing clogging of a flow path [

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a powder feed pipe for preventing clogging of a flow path, and more particularly, to a powder feed pipe capable of preventing a flow path from being clogged due to agglomeration of powder inside the tube.

A powder conveying pipe for conveying the powder to a long distance may cause a phenomenon that the powder is clogged and clogged due to excessive powder entrance or the like. In addition, in the case of pulverized coal having a high water content, since the viscosity is high, the powder may clog the tube and clog the tube.

Therefore, the powder pipe clogged by the agglomerated powder consumes the power to collapse the agglomerated powder by applying pneumatic pressure or physical force, and smoothly transport it.

Korean Patent Laid-Open Publication No. 1999-0035061 discloses an apparatus for preventing vertical clogging of blast furnace pulverizing equipment.

In the above-described technique, the apparatus for removing the fixed coal adhered to the inner lower part of the vertical chute is provided. In the outer part of the bottom part of the vertical chute, there are provided respective space parts provided with striking devices on both inner sides, A drain valve connected to each drain pipe is installed on each of the water jackets and a suction valve connected to the suction pipe is installed on the bottom of the water jacket and respective air automatic valves are installed on both sides of the water jacket, The ball is placed in an inclined portion formed at a front side so as to strike the outer steel sheath of the vertical chute in a longitudinal direction and the rear portion of the inclined portion is connected to the hollow space, A striking rod is installed in the air cylinder at the rear of the striking rod, a spring is inserted in the striking rod, Draft rear of a steady air cylinder is mounted is installed to advance and anti-block, composed of a rear center thereof is formed by the air inlet striking device.

The posted prior art has a problem in that a noise is generated during operation and mechanical vibrations are generated, so that the bolts and nuts fixing the vertical chute may be detached to cause a safety accident.

Korean Patent Laid-Open No. 10-2009-0057612 discloses a plug control device for powder transport.

The disclosed technique filters a large amount of powder in a filter, transports the filtered powder to a blower pump through a pipe of a pipe, transports the powder by air pressure supplied from the blower pump, A check valve for preventing back flow of the fluid in the piping of the pipe between the blower pump and the storage tank and a solid feeder for feeding the solid powder into the piping of the pipe, Wherein a plurality of bypass transfer plates are provided in the piping of the pipe to control the length of the plug and a rectangular structure is provided between the bypass transfer plates to generate a stable plug through the bypass path in the piping And is a plug control device for powder transport.

The published prior art has the disadvantage of not being able to remove the plug corresponding to the agglomerated powder which is generated in the tube although there is no additional consumption of power.

Korean Patent Publication No. 10-2009-0057612 Korean Patent Publication No. 1999-0035061

It is an object of the present invention to provide a powder feed pipe for preventing clogging of a flow path by collapsing powder agglomerated without consuming additional power when the powder feed pipe is clogged and the powder feed pipe is clogged.

In order to accomplish the above object, the present invention provides a powder passage for preventing clogging of a flow path, the powder path having an inlet for introducing powder therein and a hollow structure having a main flow path formed therein to allow the powder introduced through the inlet to be conveyed by pneumatic pressure ; And a collapse portion provided inside the tube portion to be positioned below the inlet port and configured to collapse the powder introduced through the inlet port to collapse the agglomeration of the firing powder to coat the main flow passage.

The collapsed portion is characterized in that the lower portion is wide and the upper portion is narrow so that the powder slides down.

The collapsing portion is formed on the inner side of the sub-flow path to be coupled to the inner circumferential surface of the tube portion and separated from the main flow path, and a communicating hole is formed in a lower portion in contact with the inner circumferential surface of the tube portion to communicate the main flow path and the sub flow path .

A second lower plate coupled to an inner circumferential surface of the tube portion at a position spaced apart from the first lower plate and having the communication hole formed therein, and a second lower plate coupled to the inner circumferential surface of the tube portion, A first inclined plate formed to be inclined at an upper portion of the lower plate and a second inclined plate inclined at an upper portion of the second lower plate and having an upper end engaged with an upper end of the first inclined plate.

Wherein the collapsed portion includes a third inclined plate formed with the communication hole and joined to the inner circumferential surface of the tube portion so as to be inclined, and a second inclined plate provided on the inner circumferential surface of the tube portion at a position spaced apart from the third inclined plate, And a fourth swash plate coupled to an upper end of the second swash plate.

A sixth inclined plate formed at the position spaced apart from the fifth inclined plate and inclined at an inner circumferential surface of the tube portion; and a sixth inclined plate disposed at a position spaced apart from the fifth inclined plate, And an upper plate connecting the upper end of the fifth swash plate and the upper end of the sixth swash plate.

And the curved portion is formed to be convex upward, and the curved plate is provided with the communication hole.

As described above, according to the present invention, it is possible to disintegrate the agglomerated powder effectively without disposing a collapsing portion therein, thereby preventing clogging of the powder passageway.

FIG. 1 is a partially cutaway perspective view showing a powder passage according to a first embodiment of the present invention,
Fig. 2 is a sectional view of Fig. 1,
Fig. 3 is a side view of Fig. 1,
Fig. 4 is a side view showing the operation of Fig. 1,
Fig. 5 is a cross-sectional view showing the operation of Fig. 1,
FIG. 6 is a perspective view showing a main part of the powder conveying pipe according to the second embodiment of the present invention,
FIG. 7 is a perspective view showing the main part of the powder conveying pipe according to the third embodiment of the present invention,
FIG. 8 is a perspective view showing a main part of a powder conveying pipe according to a fourth embodiment of the present invention. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

1 to 3, the powder feed pipe 10 for preventing clogging of the flow path according to the first embodiment of the present invention includes a hollow tube portion 10 having an inlet 12a through which powder flows, And a collapsing portion 20 provided inside the tube portion 10 so as to be positioned below the tube portion 12a.

The tube portion 10 is formed in a hollow structure, and a main flow path 11 through which the powder is transferred is formed inside. Flanges 13 and 14 are formed at both ends of the tube portion 10 so that the other tubes can be respectively coupled to both sides.

An inlet 12a is formed in the upper portion of the tube portion 10. The lower end of the inflow pipe 12 is coupled to the edge of the inflow port 12a. A flange 15 is formed at the upper end of the inflow pipe 12. The flange 15 of the inlet pipe can be joined to the bottom of the hopper in which the powder is stored.

Powder such as pulverized coal, concrete, and grain powder introduced into the inflow pipe 12 flows into the inside of the pipe section 10 through the inlet port 12a. The powder introduced into the tube portion 10 is transported in one direction by the air pressure acting inside the tube portion 10.

The collapsed portion (20) is installed inside the tube portion (10). The collapsed portion 20 is elongated along the longitudinal direction of the tube portion 10. If the main flow path 11 is clogged with powder in the inside of the tube portion 10, the collapsed portion 20 serves to collapse the agglomerated powder.

The collapsed portion 20 is formed such that the upper portion is narrow and the lower portion is wide when viewed from the side, thereby forming an inclined surface. This is to allow the powder to slip down to the bottom when it contacts the collapsed portion 20.

The collapsing portion 20 is joined to the inner circumferential surface of the tube portion 10 to form a sub flow path 21 which is separated from the main flow path 11 on the inner side. A plurality of communication holes 22 for communicating the main flow path 11 and the sub flow path 21 are formed in a lower portion in contact with the inner peripheral surface of the tube portion 10.

The first lower plate 23, the second lower plate 24, the first swash plate 25, and the second swash plate 26 as one example of the collapsed portion 20 shown.

The first lower plate 23 is a portion that is engaged with the inner circumferential surface of the tube portion 10 and is formed into a flat plate shape. A communication hole 22 is formed in the lower part of the first bottom plate 23. The communication hole 22 is formed so as to be in contact with the inner peripheral surface of the tube 10 portion. A plurality of communication holes 22 are formed at regular intervals. The powder can flow into the sub flow path 21 from the main flow path 11 through the communication hole 22. [

The second bottom plate (24) is formed in parallel to the first bottom plate (23). A plurality of communication holes 22 are formed in the lower portion of the second bottom plate 24. The second bottom plate 24 has the same structure as the first bottom plate 24.

The first swash plate 25 is formed to extend from the top of the first bottom plate 23. The first swash plate is formed to be inclined. For example, the first swash plate 25 may be inclined so that the angle formed by the first swash plate 25 and the first bottom plate 23 is 110 to 160 degrees.

The second swash plate 26 is formed extending from the upper portion of the second bottom plate 24. The second swash plate 26 is formed to be inclined in the direction of the first swash plate 25. The second swash plate 26 may be inclined so that the angle formed by the second swash plate 26 and the second bottom plate 24 is 110 to 160 degrees.

As the first swash plate 25 and the second swash plate 26 advance toward the upper portion, the intervals become gradually narrower, and the upper ends of the first swash plate 25 and the second swash plate 26 are engaged with each other. In this way, the first swash plate 25 and the second swash plate 26 are formed to be inclined so that the powder can be slid down by its own weight.

The collapsed portion 20 having the above-described structure is provided on the tube portion 10 to form the sub flow path 21 in contact with the inner circumferential surface of the tube portion 10.

Hereinafter, the operation and effect of the powder feed pipe for preventing clogging of the flow channel according to the first embodiment of the present invention will be described.

4 and 5, when the powder flows into the inlet pipe 12 connected to the hopper and the silo, the powder flows into the inside of the pipe section 10 through the inlet port 12a. Pneumatic pressure generated by a blower, a vacuum pump, or the like is applied to the inside of the tube portion 10. Therefore, the powder introduced into the tube portion 10 moves in one direction while flowing together with the air.

When powder agglomeration occurs due to excessive drawing of the powder and viscosity due to moisture, the powder 1 begins to accumulate below the inlet 12a and narrows the area of the main flow path 11 as shown in the figure. At this time, a part of the powder 1 accumulated on the outer periphery of the collapsing portion 20 flows into the sub-flow path 21 through the communication hole 22.

As the main flow path 11 becomes narrower, a larger air pressure acts on the sub flow path 21 relatively. Therefore, the powder flows into the sub-flow passage 21 through the communication hole 22, and moves in the direction A and flies. Part of the coagulated powder flows into the sub flow path 21 little by little, and the powder accumulated outside the collapsed portion 20 begins to collapse from the bottom. The powder accumulated on the upper portion of the collapsed portion 20 is slid by its own weight to move to the lower portion and the powder moved to the lower portion flows into the sub flow path 21 through the communication hole 22 and moves in the direction A It flies. As such a phenomenon occurs continuously, the amount of powder that has clogged the main flow path 11 is reduced, and the transfer of the powder through the main flow path 11 is resumed.

Hereinafter, a powder conveying pipe for preventing clogging of the passage according to the second embodiment of the present invention will be described.

The powder feed pipe for preventing clogging of the flow path according to the second embodiment of the present invention comprises a tube portion and a collapsing portion.

Since the tube portion is the same as the first embodiment described above, a detailed description thereof will be omitted.

Referring to FIG. 6, the collapsing portion 30 includes a third swash plate 31 and a fourth swash plate 33.

A plurality of communication holes 37 are formed at a predetermined interval at a lower portion of the third swash plate 31. The communication hole 37 is formed at a portion in contact with the inner peripheral surface of the tube portion.

The fourth swash plate 33 is formed to be inclined in the direction of the third swash plate 31. Therefore, the lower portion of the fourth swash plate 33 is spaced apart from the lower portion of the third swash plate 31, and the upper end of the fourth swash plate 33 is engaged with the upper end of the third swash plate 31. And a large number of communication holes are formed at the lower portion of the fourth swash plate 33 at regular intervals. The communication hole is formed at a portion in contact with the inner peripheral surface of the tube portion.

Thus, the collapsed portion 30 has a narrow upper portion and a wide triangular upper portion.

On the other hand, a powder conveying pipe for preventing clogging of the passage according to the third embodiment of the present invention will be described.

The powder feed pipe for preventing clogging of the flow path according to the third embodiment of the present invention comprises a tube portion and a collapsing portion.

Since the tube portion is the same as the first embodiment described above, a detailed description thereof will be omitted.

Referring to Fig. 7, the collapsed portion 40 includes a fifth swash plate 41, a sixth swash plate 43, and an upper plate 45. [

And a plurality of communication holes 47 are formed at a lower portion of the fifth swash plate 41 at regular intervals. The communication hole 47 is formed in a portion in contact with the inner peripheral surface of the tube portion.

The sixth swash plate 43 is formed to be inclined in the direction of the fifth swash plate 41. The sixth swash plate 43 is spaced apart from the fifth swash plate 41 by a predetermined distance. Accordingly, the interval between the sixth swash plate 43 and the fifth swash plate 41 is wide at the bottom and narrow at the top. And a large number of communication holes are formed at lower portions of the sixth swash plate 43 at regular intervals. The communication hole is formed at a portion in contact with the inner peripheral surface of the tube portion.

The upper plate 45 connects the upper end of the fifth swash plate 41 and the upper end of the sixth swash plate 43. The top plate 45 is formed horizontally. The width of the top plate 45 is preferably narrow to minimize the build up of powder over the top plate 45.

On the other hand, a powder conveying pipe for preventing clogging of the passage according to the fourth embodiment of the present invention will be described.

The powder conveying pipe for preventing clogging of the passage according to the fourth embodiment of the present invention comprises a tube portion and a collapsing portion.

Since the tube portion is the same as the first embodiment described above, a detailed description thereof will be omitted.

Referring to FIG. 8, the collapsed portion 50 is formed of a curved surface plate 51 formed to be convex upward. The curved plate 51 has a narrow upper part and a wider lower part. A plurality of communication holes (57) are formed at regular intervals below the curved plate (51) in contact with the inner surface of the tube portion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

10; Tube 11: Main flow
12: inlet pipe 20: collapsed portion
21: Sub-channel 22; Communication hole
23; A first bottom plate 24; The second bottom plate
25; A first swash plate 26; The second swash plate

Claims (7)

A hollow tubular portion formed with an inlet through which the powder flows and having a main flow path formed therein so that the powder introduced through the inlet port can be conveyed by pneumatic pressure;
And a collapse portion provided inside the tubular portion so as to be positioned below the inlet port and collapsing the powder introduced through the inlet port to collapse the agglomeration of the diaphragm to coat the main flow passage. To prevent the powder from flowing. The method according to claim 1,
Wherein the collapsed portion is formed such that the lower portion thereof is wide and the upper portion thereof is narrowed so that the powder slides down. 3. The method of claim 2,
Wherein the collapsing portion is formed on the inner side with a sub-flow passage coupled to an inner circumferential surface of the tube portion and separated from the main flow passage, and a communication hole communicating the main flow passage and the sub- A powder conveyer to prevent clogging of the flow path. The method of claim 3,
A second lower plate coupled to an inner circumferential surface of the tube portion at a position spaced apart from the first lower plate and having the communication hole formed therein, and a second lower plate coupled to the inner circumferential surface of the tube portion, A first inclined plate formed at an upper portion of the lower plate and inclined at an upper portion of the second lower plate and a second inclined plate whose upper end is engaged with an upper end of the first inclined plate; The ship. The method of claim 3,
Wherein the collapsed portion includes a third inclined plate formed with the communication hole and joined to the inner circumferential surface of the tube portion so as to be inclined, and a second inclined plate provided on the inner circumferential surface of the tube portion at a position spaced apart from the third inclined plate, And a fourth inclined plate coupled with an upper end of the first inclined plate. The method of claim 3,
A sixth inclined plate formed at the position spaced apart from the fifth inclined plate and inclined at an inner circumferential surface of the tube portion; and a sixth inclined plate disposed at a position spaced apart from the fifth inclined plate, And an upper plate connecting the upper end of the fifth swash plate and the upper end of the sixth swash plate. The method of claim 3,
Wherein the collapsed portion is convex upwardly and includes a curved plate provided with the communication hole.

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