KR101649856B1 - Structure for preventing elbow abrasion of pipe line - Google Patents

Abstract

A dust collecting tube bending part wear prevention structure is disclosed. The disclosed dust collecting tube bumper wear prevention structure includes a body provided with a bending portion of a pipeline through which a fluid containing metal particles or a metal piece passes, and a metal suction member provided on the body, Or a metal piece bending section reinforcement layer.

Description

STRUCTURE FOR PREVENTING ELBOW ABRASION OF PIPE LINE [0002]

The present invention relates to a structure for preventing curvature wear of pipelines.

1 is a view showing a process of collecting dust in a general blast furnace transportation facility.

Referring to FIG. 1, the blast furnace transportation facility is a facility for sorting and weighing iron ore, coke, additives, etc. stored in a bin (not shown) through a screen (not shown) and using a belt conveyor 10 In the blast furnace main body, dust is seriously generated in the blast furnace transportation equipment due to the vibration of the screen, the falling of the equipment in the equipment, and the operation speed of the equipment.

The dust collecting hood 20 is installed in each dust generating source and the dust collecting hood 20 and the electrostatic precipitator (not shown) are connected to each other by using the dust collecting tube 30. [ And the dust generated in the dust generating source is collected and removed using the dust collecting pressure of the dust collector. The distance between the installation position of the dust collector and the dust generating source is considerably long and the dust collecting pipe 30 connected between the dust collecting device and the dust collecting device has to be installed to avoid the interference with various equipments and the passage.

The dust particles 40 collected by dust collecting by the dust collector collide with the inner surface of the bending portion 31 due to inertia for going straight as shown in Fig. 2, and wear the inner surface of the bending portion 31 . 3, a partial pore 32 is generated in the bending portion 31 and the periphery where the pore 32 is generated abruptly wears due to the turbulence along the pore 32. As a result, Progresses to a large pore. The dust particles 40 are scattered to the outside at the portion where the pores 32 are generated and the dust collecting performance of the dust collector is lowered due to the dust collecting pressure loss due to the pores 32, And the like.

4, when a bore is formed in the bending portion 31 of the dust collecting tube, a reinforcing material 50 such as a pipe steel plate is poured to the portion where the bore 32 is generated, The pores are repaired by a method in which a box 60 according to the shape of the bending portion 31 is provided and the castable 70 is installed.

However, in the case of the former, it is necessary to repeatedly install the reinforcing material in the atmospheric state due to turbulence caused by the turbulence caused by the bent portion of the inner iron. In the latter case, the box 60 ) And rear end pores, which require additional maintenance, and frequent maintenance has resulted in a large cost and labor cost.

Patent Registration No. 10-1436598

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bending portion wear prevention structure of a pipeline for preventing abrasion and pitting of a bending portion of a pipeline.

According to one aspect of the present invention, there is provided a bending portion wear prevention structure for a pipeline, comprising: a body provided with a bending portion of a pipeline through which a fluid containing metal particles or a metal piece passes; and a metal suction member And the metal particles or the metal pieces may constitute a bending portion reinforcing layer.

Wherein the fluid body is provided as dust particles in a dust collecting environment including metal particles or metal pieces, the pipeline comprises a dust collecting tube, and the body is assembled on the outer surface of the bending portion of the dust collecting tube, And a plurality of pockets through which the magnets, which are the metal suction members, are inserted into the inner skin exposed during the skin incision.

The body is assembled through a belt on the outer surface of the bending portion of the dust collecting tube, and the outer shell of the body can be partially cut as a zipper.

The bending portion wear prevention structure of the pipeline may further include a cover provided on the inner surface of the outer casing facing the inner casing to prevent the magnet inserted in the pocket from escaping.

The inner skin is configured such that a portion other than a portion exposed when the zipper is opened is joined to the outer skin, and the zipper may be installed in a cross shape from the center of the outer skin to the top, bottom, left and right.

The pockets are arranged so as to be distributed at a constant density throughout the mounting area, and the magnets may be installed at only some selected portions of the pockets so as to have a distribution of densities varying according to the wear type of the bending portion.

The bending portion wear prevention structure of the pipeline may further include an arrangement line which is shown in accordance with the type of bending portion wear at a typical angle in the inner surface and serves as a reference guide in determining the mounting density of the magnet.

Wherein the body has a rectangular first portion surrounding a bending portion of the bending portion and a rear end portion of the bending portion disposed behind the bending portion with respect to a traveling direction of the dust particle, Shaped second portion surrounding the front end of the bending portion disposed in front of the first bending portion, and the first portion and the second portion may have a planar shape in which the bending portion and the second portion are integrally formed.

The bending portion wear prevention structure of the pipeline may further include a belt guide provided on the outer surface of the outer casing so that the belt can be fitted.

According to the present invention, metal particles or metal pieces included in dust particles conveyed through a pipeline of a dust collecting pipe or the like are adsorbed on the inner surface of the bending portion of the pipeline to form a bending portion reinforcing layer, So that wear and pitting of the pipeline can be prevented. Accordingly, it is possible to reduce the cost and manpower required for repairing the pipeline, and to prevent the environmental pollution problem caused by scattering of dust particles to the outside during the bending of the pipe line.

In addition, since the thickness of the bending portion of the pipeline is increased, the strength of the magnetic force by the magnet is increased to increase the thickness of the bending reinforcement layer, which serves as a buffer, to more effectively alleviate the impact of the blowing of the dust particles. The additional wear of the iron wire can be suppressed and the advance to the pore can be prevented.

In addition, since the distribution of the magnets can be controlled according to the wear type of the bending portion of the pipeline, the density of the magnet is increased to increase the density of the bending portion of the bending portion adsorbed to the inner surface of the bending portion of the pipeline And the density of the magnet is lowered at a portion where the wear is expected to be relatively low, thereby reducing the thickness of the bending portion of the bending portion adsorbed to the inner surface of the bending portion of the pipeline, The dust collecting performance of the dust collector can be prevented from deteriorating.

In addition, since the magnets can be rearranged and the distribution of the magnets can be modified, it is possible to cope with not only general wear types but also various types of wear occurring in actual working places, and has excellent field applicability.

In addition, it is easy to install and dismantle by belt. Therefore, it is easy to detach and reattach when measuring the thickness of the bending part of the pipeline in order to grasp the type of bending part wear in the pipeline being used. Moreover, even if the angle and specification of the bending portion of the pipeline changes, it can be used without any additional design change, and thus has excellent compatibility.

1 is a view showing a process of collecting dust in a general blast furnace transportation facility.
2 is a cross-sectional view showing the occurrence of a pore due to abrasion of the dust collecting tube bending part.
Figure 3 is an exploded view of Figure 2;
4 and 5 are views showing a conventional method for repairing a dust collecting tube bending part.
6 is an exploded view of a pipeline bending portion wear prevention structure according to an embodiment of the present invention.
7 is a cross-sectional view illustrating an installation state of a pipeline bending portion wear prevention structure according to an embodiment of the present invention.
8 is an enlarged sectional view of a portion B in Fig.
9A to 9C are views showing arrangement lines according to the wear type of the bending portion of a typical angle.
10 and 11 are views showing the operation of the pipeline bending portion wear prevention structure according to an embodiment of the present invention.

In order to facilitate understanding of the features of the present invention as described above, the bending portion wear prevention structure of the pipeline related to the embodiment of the present invention will be described in more detail.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. And that the present invention can be implemented as described above. Therefore, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Hereinafter, as a preferred embodiment, a description will be made only in the case where the fluid passing through the interior of the pipeline is provided as dust particles in a dust collecting environment including metal particles, and the pipeline is formed as a dust collecting tube. However, It is to be understood that the present invention is applicable to all environments including a pipeline through which a fluid containing metal particles and / or metal pieces passes.

6 to 8, the bending portion wear prevention structure 100 of the pipeline according to the present invention includes a bending portion 100 of the bending portion of the dust collecting tube, which provides a transfer path of the dust particles 40 including metal particles and / A body 110 composed of an inner skin 111 and an outer skin 112 and a plurality of pockets 130 provided on the inner skin 111 and pockets 130 For example, magnets 140, which are inserted into the magnet assembly. The outer shell 112 is configured to be partially cut by a zipper 113.

Specifically, the body 110 has a planar shape corresponding to the developed view of the bending portion 31, for example, a rectangular shape, and a second portion of the butterfly shape are integrated with each other to enhance the adhesion with the bending portion 31 Shape.

The dust particles 40 transferred through the dust collecting pipe collide with the inner surface of the bending portion 31 due to inertia to be advanced and wear the inner surface of the bending portion 31. [ Particularly, most of the dust particles 40 collide with the bent portion of the bending portion 31 and the rear end of the bending portion 31 disposed behind the bent portion with respect to the traveling direction of the dust particles 40, Thereby intensively worn the inner surface of the portion.

The body 110 has a rectangular first portion arranged behind the bent portion with respect to the direction in which the abrasion is concentrated by the dust particles 40, that is, the bent portion of the bending portion 31 and the advancing direction of the dust particles 40 A second portion of the butterfly shape is provided on the front side of the bending portion 31 disposed in front of the bent portion with respect to the traveling direction of the dust particles 40 so as to surround the rear end portion of the bending portion 31 and to improve the adhesion with the bending portion 31 And may be configured to surround the front end portion.

The body 110 has a dual structure of an inner skin 111 and an outer skin 112 and a zipper 113 is installed on the outer skin 112 to partially cut the outer skin 112. The zipper 113 is provided in the shape of a cross in the vertical and horizontal directions from the center of the envelope 112 and has a portion where the inner film 111 is exposed to the outside when the zipper 113 is opened, The inner skin 111 and the outer skin 112 are separated from each other on the inner side of the zipper 113 and the outer side of the portion where the inner skin 111 is exposed to the outside when the zipper 113 is opened, The inner skin 111 and the outer skin 112 are joined together by an adhesive agent or by sewing.

A plurality of pockets 130 having a structure capable of inserting and removing a magnet 140 are provided in a portion of the inner skin 111 exposed to the outside when the zipper 113 is opened. A cover 132 is provided on the inner surface of the pocket 130 to prevent detachment of the magnet 140 inserted into the pocket 130. The pockets 130 may be arranged so as to be distributed at a constant density over the entire area of the portion of the inner skin 111 exposed to the outside when the zipper 113 is opened.

The magnet 140 is prevented from abrasion of the bending portion 31 in order to prevent the bending of the bending portion 31 of the dust collecting tube while minimizing the interference of the magnetic force of the magnet 140 with the flow rate and the flow rate inherent to the dust collecting tube, And may be installed at only a selected portion of the pockets 130 so that the pockets 130 may be arranged at different densities depending on the type.

An array line 150 serving as a reference guide for the mounting density of the magnet 140 may be shown on the inner surface 111. The alignment line 150 can be shown according to the type of wear of the bending portion 31 having typical angles, for example, 135, 120 and 90, which are frequently used, as shown in Figs. 9A to 9C .

6 through 8, the mounting density of the magnet 140 is set to be equal to or substantially the same as or similar to the bending portion 31 in which the bending portion wear prevention structure 100 according to the present invention is installed, (150). ≪ / RTI >

However, the installation density of the magnet 140 is not determined based solely on the arrangement line 150, but the angle of the bending portion 31 on which the bending portion wear prevention structure 100 according to the present invention is installed, 31) and the degree of wear. In addition, when a certain period of time has elapsed after the installation of the bending portion wear prevention structure 100 according to the present invention, or when the bending portion wear structure 100 according to the present invention is installed in a dust collecting pipe being used for a long time, The density of the density of the magnet 140 is increased at the portion where the residual ironing thickness is relatively thin and the density of the magnet 140 is increased at the portion where the residual ironing thickness is relatively large, by measuring the residual ironing thickness of the bending portion 31 of the dust collecting tube, The density of the magnet 140 can be adjusted in the direction of lowering the density.

As the magnets 140, neodymium magnets may be used. Neodymium magnets have the most powerful magnetic force among permanent magnets, and they are cheap in price compared to magnetic force and can be manufactured in various shapes. However, in the Neodium magnet, the magnetic force is reduced at a high temperature of 60 deg. C or more. When the temperature of the installation point of the bending portion 31 is 60 deg. C or more, a samarium cobalt magnet is preferably used instead of Neodymium magnet.

A plurality of belts 120 are installed in the transverse direction of the body 110. Belt rings 122 are provided at one ends of the belts 120 so that the length of the belts 120 can be adjusted. So that the body 110 can be brought into close contact with the bending portion 31 by adjusting the length of the belt 120 using the belt loop 122. The belt loop 122 may be formed in the shape of a 'date' having a separating plate in the middle so that the belt 120 can be bent and penetrated.

The belt guide 124 is installed on the outer surface of the outer envelope 112 so as to allow the belt 120 to be fitted therein while avoiding the zipper 113 so as not to interfere with the operation of the zipper 113.

Although the belt loop 122 is provided at one end of the belt 120 in this embodiment, instead of the belt loops 122, buckles of male and female corresponding to each other are provided at both ends of the belt 120 Or a velcro tape composed of male and female parts corresponding to each other at both side ends of the belt 120 may be provided.

Hereinafter, the operation of the bending portion wear prevention structure of the pipeline according to the embodiment of the present invention will be described.

The dust particles (40) generated in the blast furnace transportation equipment are moved toward the dust collector through the collector by the dust collecting pressure of the dust collector.

10, in the initial state in which the bending portion 31 of the dust collecting tube is not worn, the magnetic force by the magnet 140 hardly influences the inside of the bending portion 31 of the dust collecting tube, ) Moves toward the dust collector at a flow rate and flow rate inherent to the dust collecting tube installation.

Thereafter, as the bending portion 31 of the dust collecting tube is worn by the dust particles 40 intermittently flowing, the thickness of the bending portion of the bending portion 31 of the dust collecting tube becomes thin, 11, the magnetic particles, such as the metal particles and / or the metal particles, in the dust particles 40 are removed from the magnets 140 as shown in FIG. 11, And is attached to the surface of the bending portion 31 of the dust collecting tube. On the other hand, the non-magnetic fumes and other components such as dust continue to move toward the dust collector.

The metal particles and / or metal pieces will remain in the surface of the bending portion 31 of the collector tube, and the amount thereof will be influenced by the magnitude of the magnetic force of the magnet 140. This is because the metal particle or / and the metal piece are adhered to the inner surface of the bending portion 31 of the bending tube by the magnetic force of the magnet 140 to form the bending portion reinforcing layer 41 having a predetermined thickness, ) To protect the inner surface.

The dust particles 40 striking the bending portion 31 of the dust collecting tube collide with the surface of the bending portion reinforcing layer 41 and not the inner surface of the bending portion 31 of the dust collecting tube, The impact caused by the collision of the dust particles 40 with the dust particles 40 is relieved and the wear of the bending portion 31 of the dust collecting tube is suppressed.

According to the present invention described above, the metal particle or / and the metal piece contained in the dust particles 40 transferred through the dust collecting tube are adsorbed on the inner surface of the bending portion 31 of the collecting tube to form the bending portion reinforcing layer 41 And the impact due to the blowing of the dust particles 40 is mitigated by the bending reinforcement layer 41, thereby preventing wear and pitting of the dust collecting tube. Therefore, it is possible to reduce the maintenance cost of the dust collecting tube and to prevent the environmental pollution problem due to scattering of the dust particles to the outside during the bending of the bending portion of the dust collecting tube.

The thickness of the bending portion 31 of the dust collecting tube 31 increases as the magnetic force of the magnet 140 is increased to increase the thickness of the bending portion reinforcing layer 41 serving as a buffer, The additional wear of the iron pipe of the bending portion 31 can be suppressed and the advance to the pore can be prevented.

Further, since the distribution of the magnets 140 can be adjusted according to the wear type of the bending portion 31 of the dust collecting tube, the density of the magnets 140 is increased in a portion where relatively much wear is expected to occur, 31, the thickness of the bending portion reinforcing layer 41 is increased to increase the abrasion suppressing effect. In a portion where the wear is expected to be relatively less, the density of the magnet 140 is lowered, 31 to reduce the thickness of the bending portion reinforcing layer 41 to minimize the influence of the bending portion reinforcing layer 41 on the flow of the dust particles 40 conveyed through the collecting tube, .

In addition, since the magnet 140 can be rearranged and the distribution of the magnet 140 can be modified, it is possible to cope with not only general wear types, but also various types of wear occurring in actual work sites. That is, the field application is very excellent.

Since the belt 120 can easily be installed and dismantled, it is easily detached when measuring the thickness of the bending portion 31 of the bending tube 31 of the dust collecting tube in order to grasp the type of wear of the bending portion 31 of the dust collecting tube in use. And even if the angle and shape of the bending portion 31 of the dust collecting tube are changed, it can be used as it is without any additional design change.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that the invention can be variously modified and changed without departing from the technical scope thereof.

30: Collecting tube
31:
40: dust particles
110: Body
111:
112: envelope
113: Zipper
120: belt
122: Belt loop
124: Belt guide
130: pocket
132: cover
140: magnet
150: array line

Claims (11)

A body provided with a curved portion of a pipeline through which a fluid containing metal particles or a metal piece passes,
And a metal sucking member provided on the body,
Wherein the body is composed of an outer skin which is assembled on the outer surface of the bending part and is capable of being cut when necessary, and the inner skin which is exposed when the outer skin is cut off is provided with a plurality of pockets through which the metal suction member is inserted,
Wherein the metal particles or the metal pieces constitute the bending portion reinforcing layer.
The structure according to claim 1, wherein the fluid is provided as dust particles in a dust collecting environment including metal particles, and the pipeline comprises a dust collecting tube.
3. The dust collecting apparatus according to claim 2, wherein the body is assembled through a belt on the outer surface of the bending portion of the dust collecting tube,
Wherein the shell of the body is partly cut with a zipper.
The structure according to claim 2, further comprising a lid provided on an inner surface of the outer shell facing the inner skin to prevent the metal suction member inserted into the pocket from being released.
4. The wear prevention structure of a pipeline according to claim 3, wherein the portion of the inner film other than the portion exposed when the zipper is opened is joined to the outer film by one piece.
[5] The structure of claim 3, wherein the zipper is installed in a cross shape in the vertical and horizontal directions from the center of the shell.
3. The structure of claim 2, wherein the pockets are arranged so as to be distributed with a constant density throughout its mounting area.
8. The wear prevention structure of a pipeline according to claim 7, wherein the metal suction member is installed at only a selected portion of the pockets so as to have a distribution of densities varying according to a wear type of the bending portion.
The bending portion wear prevention structure of a pipeline according to claim 8, further comprising an arrangement line which is shown in accordance with a type of bending portion wear at a typical angle in the inner bending portion and is provided so as to serve as a reference guide when the mounting density of the metal suction member is determined.
[3] The apparatus according to claim 2, wherein the body comprises: a square shaped first portion surrounding a bent portion of the curved portion and a rear end portion of the curved portion disposed behind the bent portion with respect to a traveling direction of the dust particle; And a second portion of a butterfly shape surrounding the front end portion of the bending portion disposed in front of the bending portion with respect to a direction of the bending portion, wherein the first portion and the second portion have a planar shape in which the first portion and the second portion are integrated, rescue.
The structure of claim 3, further comprising a belt guide installed on the outer surface of the outer casing so that the belt can be fitted.

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