KR20200047146A - Lifting guide device of coke oven door extractor - Google Patents

Abstract

Disclosed is a lifting guide device of a coke oven door extractor to prevent shaking due to abrasion caused by repetitive operation of a door extractor. According to one exemplary embodiment of the present invention, the lifting guide device is formed in a door extractor having a head for attaching and detaching a doorframe of a coke oven in a process of extruding red-heated coke from the coke oven through an extruder and moves upper and lower hooks coupled to upper and lower lifting bars of the doorframe in the vertical direction of the head. The lifting guide device comprises: i) a guide assembly including a guide roller rotationally installed to both ends of a shaft along the head and a guide arm vertically connected to the shaft; ii) a fixed member fixed to the guide arm through a fixing pin penetrating the guide arm in the axial direction of the shaft; iii) a guide reinforcement unit including a pair of rotational rollers rotationally installed on both sides of the axial direction of the guide arm and installed on the upper end of the guide arm; and iv) a roller support unit fixed to the fixed member, connected to a vertical operational end side of a lifting cylinder, and coming in rolling contact with the rotational rollers.

Description

Lifting guide device for coke oven door extractor {LIFTING GUIDE DEVICE OF COKE OVEN DOOR EXTRACTOR}

An embodiment of the present invention relates to a coke oven facility, and more specifically, a lifting guide device for vertically guiding up and down operation of a door extractor for detaching a door of a coke oven in a process of extruding coal-heated red hot coke. It is about.

In general, coke used in the steelmaking process serves as a reducing agent for reducing iron ore in the blast furnace, serves as a heat source for the blast furnace that generates a large amount of heat by reacting with oxygen, and in the blast furnace to facilitate reaction in the furnace. It is an important ironmaking raw material that plays a role in maintaining breathability. Such coke is manufactured in a coke oven facility in which a carbonization chamber for drying coal (soft coal) and a combustion chamber for supplying heat necessary for drying are alternately directly heated.

Conventional coke oven equipment includes a plurality of carbonization chambers in which carbonization is carried out, a charging vehicle for injecting coal from the upper portion of the carbonization chamber into the carbonization chamber, and a red-hot coke complete with drying by being located at one door side of the carbonization chamber to the outside It is equipped with an extruder for withdrawing and a transfer car for moving the glowing coke drawn out by the extruder, which is located on the other door side of the carbonization chamber.

Accordingly, when the coal is charged into the inside of the carbonization chamber by a charging vehicle installed to run on the upper portion of the carbonization chamber, drying is performed at a high temperature of approximately 20 hours or more with both doors of the carbonization chamber closed, and the high temperature at which the drying is completed ( The glowing coke of about 1200 ° C or higher) is drawn out of the carbonization chamber by an extruder and a transfer car.

In the process of manufacturing the coke as described above, in the process of extruding the glowing coke in the coke oven through an extruder, a forward and backward movement with respect to the door frame of the coke oven is used, and a door extractor detaching the door frame is used.

The door extractor is provided with a vertical hook that can be coupled to and detachable from the lifting bar on the upper and lower sides of the door frame, and a lifting guide device for moving these vertical hooks in the vertical direction.

Here, the lifting guide device of the door extractor is lifted in the vertical direction by the lifting cylinder and the lifting guide roller in the head moving back and forth with respect to the door frame, and the vertical hook can be moved in the vertical direction.

However, as the wear of the lifting guide device is progressed by the repeated operation of the door extractor as described above, the vertical centers of the upper and lower hooks may not coincide with each other depending on the degree of wear.

When detaching the door frame in this state, the coupling may become unstable between the upper and lower hooks and the lifting bar of the door frame, or a detachment defect in which the coupling is not performed may be caused.

The items described in this background section are written to improve the understanding of the background of the invention, and may include matters not known in the prior art that are already known to those skilled in the art.

Embodiments of the present invention is to prevent the shaking by wear due to repeated operation of the door extractor, and to provide a lifting guide device for a coke oven door extractor to maintain vertical centering of the upper and lower hooks.

Lifting guide device of the coke oven door extractor according to an embodiment of the present invention, in the process of extruding the glowing coke in the coke oven through an extruder, is configured in a door extractor having a head for detaching the door frame of the coke oven , For moving the upper and lower hooks coupled to the upper and lower lifting bars of the door frame in the vertical direction of the head, i) a guide roller rotatably installed at both ends of the shaft along the head, and connected to the shaft in the vertical direction A guide assembly including a guide arm, and ii) a fixing member fixed to the guide arm through a fixing pin penetrating the guide arm along the axial direction of the shaft, and iii) rotating on both sides in the axial direction of the guide arm It has a pair of rotating rollers provided as possible, the top of the guide arm The guide unit and the reinforcement, ⅳ are installed) is fixed to the fixing member, and connected to the upper and lower working end side of the lifting cylinder, may comprise a roller supporting unit for contacting the rotating roller and the cloud.

In addition, in the lifting guide device of the coke oven door extractor according to an embodiment of the present invention, the guide arm may be provided to penetrate the fixing member in the vertical direction and extend to the upper side of the fixing member.

In addition, in the lifting guide device of the coke oven door extractor according to an embodiment of the present invention, the guide reinforcement unit has an upper plate and a lower plate spaced from each other through a partition wall, a base plate connected to the top of the guide arm It may include an H-shaped beam member fixedly installed on.

In addition, in the lifting guide device of the coke oven door extractor according to an embodiment of the present invention, the pair of rotating rollers between the upper and lower plates with the partition wall between the upper and lower plates through the rotating shaft Can be installed rotatably on.

In addition, in the lifting guide device of the coke oven door extractor according to an embodiment of the present invention, the pair of rotating rollers may be installed to protrude outside the both ends of the upper and lower plates.

In addition, in the lifting guide device of the coke oven door extractor according to an embodiment of the present invention, the beam member has a length longer than the width of the base plate, and may be fixedly installed on the base plate.

In addition, in the lifting guide device of the coke oven door extractor according to an embodiment of the present invention, the roller support unit is respectively fixed to both sides of the fixing member, a pair of supports for supporting the roller surface of the rotating roller It may include a plate.

In addition, in the lifting guide device of the coke oven door extractor according to an embodiment of the present invention, the support plate is a first portion fixed to the fixing member, and the roller surface of the rotating roller at both ends outside of the beam member It may be made of a second portion that supports.

Since the embodiments of the present invention can prevent the guide arm from shaking in the axial direction of the shaft through the guide reinforcement unit and the roller support unit, it is possible to promote the smooth detachment of the door frame by maintaining the vertical centering of the upper and lower hooks.

In addition, effects obtained or predicted by embodiments of the present invention will be disclosed directly or implicitly in the detailed description of the embodiments of the present invention. That is, various effects predicted according to embodiments of the present invention will be disclosed within a detailed description to be described later.

Since these drawings are for reference to explain exemplary embodiments of the present invention, the technical spirit of the present invention should not be construed as being limited to the accompanying drawings.
1 is a view schematically showing a door extractor of a coke oven facility to which an embodiment of the present invention is applied.
2 is a combined perspective view showing a lifting guide device of a coke oven door extractor according to an embodiment of the present invention.
3 is an exploded perspective view of a lifting guide device of a coke oven door extractor according to an embodiment of the present invention.
4 is a cross-sectional configuration view of a lifting guide device for a coke oven door extractor according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar elements throughout the specification.

Since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to that shown in the drawings, and the thickness is enlarged to clearly express various parts and regions.

In addition, in the following detailed description, the names of components are divided into first, second, and the like to distinguish them in the same relationship, and are not necessarily limited to the order in the following description.

Throughout the specification, when a part “includes” a certain component, it means that the component may further include other components, not to exclude other components, unless otherwise stated.

In addition, terms such as "... unit", "... means", "... unit", and "... absent" described in the specification refer to a unit of comprehensive configuration that performs at least one function or operation. it means.

1 is a view schematically showing a door extractor of a coke oven facility to which an embodiment of the present invention is applied.

Referring to FIG. 1, an embodiment of the present invention may be applied to a coke oven facility for manufacturing high temperature red coke used in a blast furnace of a steelmaking process.

Here, the coke oven facility may charge coal through a heat source provided from a gas combustion chamber by charging coal (eg, bituminous coal) with a plurality of coke ovens 1.

This coke oven equipment CDQ for the charging vehicle for charging coal into the interior of the coke oven 1, the extruder for withdrawing the dried red coke in the coke oven 1, and the red coke drawn out by the extruder. (Coke Dry Quenching) A transfer car is included to move to the bucket.

As described above, since the basic configuration of a coke oven facility including a coke oven, a loading truck, an extruder, and a transfer car is a well-known technique well known in the art, a more detailed description of the configuration will be omitted herein.

Furthermore, an embodiment of the present invention can be applied to the process of extruding the red coke in the coke oven 1 through an extruder. In the above-described extrusion process, in the state in which the door frame 3 of the coke oven 1 is detached through the door extractor 5, the glowing coke in the coke oven 1 can be taken out through the extruder.

In the above, the door extractor 5 is installed to be movable back and forth with respect to the door frame 3 through the main drive cylinder 7, and includes a rotation support means (not shown in the figure) and a sub drive cylinder 9. It includes a head 6 rotatably installed in the axial direction of the door frame 3.

In addition, the door extractor 5 is the upper and lower hooks 8 that are movably installed in the vertical direction of the head 6 from the upper and lower sides of the head 6 (hereinafter referred to as “up and down hooks” for convenience). .). The upper and lower hooks 8 may be hooked to the lifting bars 4 provided on the upper and lower sides of the door frame 3, respectively.

Since the basic configuration of the door extractor 5 as described above is a well-known technique well known in the art, a more detailed description of its configuration and operation will be omitted herein.

Lifting guide device 100 according to an embodiment of the present invention may be configured in the door extractor (5). The lifting guide device 100 is for vertically guiding the vertical operation of the vertical hook 8 in the head 6. The lifting guide device 100 is guided in the vertical direction of the head 6 by the lifting cylinder LC, and can move the vertical hook 8 along the vertical direction of the head 6.

The lifting guide device 100 according to the embodiment of the present invention maintains vertical centering of the upper and lower hooks 8 even when worn by repetitive operation, and has a structure capable of smoothly detaching the door frame 3. Is done.

FIG. 2 is a combined perspective view showing a lifting guide device of a coke oven door extractor according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of FIG. 2, and FIG. 4 is a cross-sectional configuration diagram of FIG. 2.

Referring to FIGS. 2 to 4 together with FIG. 1, the lifting guide device 100 according to an embodiment of the present invention basically includes a guide assembly 10, a fixing member 30, a guide reinforcement unit 50, And it includes a roller support unit (70).

In an embodiment of the present invention, the guide assembly 10 is for guiding the up and down hook 8 in the up and down direction while moving in the up and down direction along both sides of the head 6 from the inside of the head (6). The guide assembly 10 includes a shaft 11, a guide roller 13 and a guide arm 15.

The shaft 11 is disposed in a horizontal direction (left and right direction) between both inner sides of the head 6. The guide roller 13 is rotatably installed at both ends of the shaft 11. In the above, the guide roller 13 rotates rolling along the rails provided on both sides of the head 6, and guides the shaft 11 in the vertical direction.

And, the guide arm 15 is connected to the vertical direction of the shaft 11 in the vertical direction. Here, the guide arm 15 may be substantially connected to the rotation support means and the sub-drive cylinder 9 of the head 6 as mentioned above.

In an embodiment of the present invention, the fixing member 30 is provided to be fixed to the guide arm 15 through a fixing pin 31 passing through the guide arm 15 along the axial direction of the shaft 11. For example, the fixing member 30 is provided in a bracket type that supports the upper side of the guide arm 15.

Here, the fixing pin 31 is provided as a pin that sequentially penetrates one side of the fixing member 30, the guide arm 15 and the other side of the fixing member 30. At one end of the fixing pin 31, a supporting end 33 for supporting one side of the fixing member 30 is formed. Further, a key groove 37 into which the key plate 35 can be fitted is formed at the other end of the fixing pin 31. In the above, the key plate 35 is fitted to the key groove 37 and supports the other side of the fixing member 30 and can be fixed to the other side of the fixing member 30 by bolts (B).

Furthermore, in the above, the guide arm 15 of the guide assembly 10 is integrally connected to the central portion of the shaft 11 and penetrates the fixing member 30 in the vertical direction, and the upper side of the fixing member 30 It is provided to be extended.

In an embodiment of the present invention, the guide reinforcement unit 50 is to reinforce the upper end of the guide arm 15, and is installed on the upper end of the guide arm 15. The guide reinforcement unit 50 includes a beam member 51 fixedly installed on the upper end of the guide arm 15 and a pair of rotating rollers 53 rotatably installed on the beam member 51. .

The beam member 51 is fixedly installed on the base plate 19 coupled to the top of the guide arm 15. The beam member 51 has a length longer than the width of the base plate 19 and is fixedly installed on the base plate 19. The beam member 51 is provided as an H-shaped beam having an upper plate 57 and a lower plate 59 spaced apart from each other in the vertical direction through the partition wall 55.

In the above, the pair of rotating rollers 53 are rotatably provided on both sides in the axial direction of the guide arm 15 in the beam member 51. The rotating roller 53 has the partition plate 55 between the upper plate 57 and the lower plate 59 of the beam member 51 with the upper and lower plates 57, 59 through the rotating shaft 61. It is installed rotatably on.

Here, the pair of rotating rollers 53 are disposed in a horizontal direction so that the roller surfaces face both ends of the beam member 51, and may be rotated in a direction perpendicular to the axial direction of the guide arm 15. Furthermore, the pair of rotating rollers 53 are disposed to protrude partially outside the both ends of the upper and lower plates 57 and 59.

In an embodiment of the present invention, the roller support unit 70 is in rolling contact with the rotating roller 53 of the guide reinforcement unit 50 and supports the rotating roller 53, and a separate connecting member 72 is provided. Through the above-mentioned lifting cylinder (LC), the upper and lower working end side and the fixing member 30 are fixedly installed.

The roller support unit 70 is installed to be fixed to one side and the other side of the fixing member 30, and includes a pair of support plates 71 supporting the roller surface of the rotating roller 53.

For example, the pair of support plates 71 are provided with a fixing member 30 and a guide reinforcing unit 50 therebetween, and a rotating roller (between the intervals between parts corresponding to both sides of the fixing member 30) 53) is provided in a wider shape of the interval corresponding to the roller surface.

The support plate 71 includes first portions 73 fixed to both sides of the fixing member 30 and second portions 75 supporting roller surfaces of the rotating roller 53 at both ends of the beam member 51. ).

Hereinafter, the operation of the coke oven door extractor lifting guide device 100 according to the embodiment of the present invention configured as described above will be described in detail with reference to the previously disclosed drawings.

First, in the embodiment of the present invention, in the process of extruding the red coke in the coke oven (1) through an extruder, the head (6) of the door extractor (5) is moved backward through the main drive cylinder (7) It moves forward through the main drive cylinder 7 to the door frame 3 side of the coke oven 1.

Here, the head 6 is supported by the rotation support means, rotates at an angle by the forward operation of the sub-drive cylinder 9, and moves toward the door frame 3 side. That is, the head 6 maintains a state in which the lower portion is positioned closer to the door frame 3 side and the upper portion is located away from the door frame 3 side based on the vertical direction. In addition, the upper and lower hooks 8 in the head 6 are in a state of being moved downward in a predetermined section by the forward operation of the lifting cylinder LC.

In this state, when the head 6 is moved forward as described above, the lower hook 8 is located under the lower lifting bar 4 of the door frame 3. And, as the head 6 is erected in the vertical direction, the upper hook 8 is located below the upper lifting bar 4 of the door frame 3.

Then, when the lifting cylinder (LC) is operated backward, the upper and lower hooks (8) are guided by the lifting guide device (100) according to an embodiment of the present invention and move upward along the head (6). .

Thus, the upper and lower hooks 8 are hooked with the upper and lower lifting bars 4 of the door frame 3. In this state, when the head 6 is reversed by the reverse operation of the main driving cylinder 7, in the embodiment of the present invention, the door frame 3 can be detached from the coke oven 1.

On the other hand, in the same process as above, in the embodiment of the present invention, the guide assembly 10 moves in the vertical direction along both sides of the head 6 from the inside of the head 6.

That is, the shaft 11 and the guide arm 15 of the guide assembly 10 are moved upwards through a guide roller 13 that rotates along the rails on both sides of the head 6, and the upper and lower hooks 8 ) Is guided upward.

Here, the guide arm 15 penetrates the fixing member 30 in the vertical direction and extends to the upper side of the fixing member 30, and a guide reinforcement unit 50 is installed at the top of the guide arm 15. . Thus, in an embodiment of the present invention, the load transmitted to the guide arm 15 can be smoothly distributed through the guide arm 15 and the guide reinforcement unit 50.

On the other hand, in the embodiment of the present invention, the fixing pin 30 for fixing the fixing member 30 and the guide arm 15 by repeated operation according to detachment and mounting of the door frame 3 through the door extractor 5 ) As the wear is fixed, the fixing member 30 and the guide arm 15 may be loosened.

However, in the embodiment of the present invention, the beam member 51 as the guide reinforcement unit 50 is fixed to the base plate 19 coupled to the upper end of the guide arm 15 as a length longer than the width of the base plate 19 And a pair of rotating rollers 53 partially protrude outside the both ends of the beam member 51 and are rotatably installed on the beam member 51.

In addition, in the embodiment of the present invention, the roller surface of the rotary roller 53 is respectively supported through the support plate 71 as the roller support unit 70, the support plate 71 of the lifting cylinder (LC) It is installed to be fixed to the vertical operation end side and the fixing member (30).

Thus, in the embodiment of the present invention, even if the fixing pin 31 for fixing the fixing member 30 and the guide arm 15 is worn by the transmission load, the rotating roller 53 and the roller supporting unit of the guide reinforcement unit 50 Through the support plate 71 of 70, it is possible to increase the adhesion and resistance of the rotating roller 53 and the support plate 71.

Therefore, in the embodiment of the present invention, the guide arm 15 is shaken in the axial direction (left and right direction) of the shaft 11 due to the transfer load to the guide arm 15 and the wear of the fixing pin 31. Can be prevented. Therefore, in the embodiment of the present invention, the vertical centering of the upper and lower hooks 8 is maintained, and the door frame 3 can be detached smoothly.

Thus, in the embodiment of the present invention, the vertical centering of the upper and lower hooks 8 is displaced, resulting in a detachment delay of the door frame 3 or a gas exposure accident after the door frame 3 is mounted due to the detachment of the door frame 3. The possibility and the frequent maintenance and repair problems of the door extractor 5 can be prevented from occurring. In addition, in the embodiment of the present invention, it is possible to maintain stable operation by preventing delay in operation due to equipment failure of the door extractor 5 and deterioration in quality.

Although the embodiments of the present invention have been described above, the technical spirit of the present invention is not limited to the embodiments presented herein, and a person who understands the technical spirit of the present invention is configured within the scope of the same technical spirit. Other embodiments can be easily proposed by adding, changing, deleting, adding elements, etc., but it will also be said to fall within the scope of the present invention.

1: coke oven 3: door frame
4: Lifting bar 5: Door extractor
6: Head 7: Main drive cylinder
8: Up and down hook 9: Sub drive cylinder
10: guide assembly 11: shaft
13: guide roller 15: guide arm
19: base plate 30: fixing member
31: fixing pin 33: support stage
35: key plate 37: key groove
50: guide reinforcement unit 51: beam member
53: rolling roller 55: bulkhead
57: upper plate 59: lower plate
61: rotating shaft 70: roller support unit
71: support plate 72: connecting member
73: first part 75: second part
B: Bolt LC: Lifting cylinder

Claims (7)

In the process of extruding the red coke in the coke oven through an extruder, it is configured in a door extractor having a head for detaching the door frame of the coke oven, and the upper and lower hooks engaging the upper and lower lifting bars of the door frame in the vertical direction of the head Lifting guide device for moving to,
A guide assembly including a guide roller rotatably installed at both ends of the shaft along the head and a guide arm connected in the vertical direction to the shaft;
A fixing member fixed to the guide arm through a fixing pin penetrating the guide arm along the axial direction of the shaft;
A guide reinforcement unit having a pair of rotating rollers rotatably provided on both sides in the axial direction of the guide arm, and installed on the top of the guide arm; And
A roller support unit fixed to the fixing member, connected to the upper and lower working end sides of the lifting cylinder, and in rolling contact with the rotating roller;
Lifting guide device of the coke oven door extractor comprising a. According to claim 1,
The guide arm,
A lifting guide device for a coke oven door extractor that penetrates the fixing member in the vertical direction and is extended to the upper side of the fixing member. According to claim 1,
The guide reinforcement unit,
H-shaped beam member having an upper plate and a lower plate spaced from each other through a partition wall and fixedly installed on a base plate connected to the upper end of the guide arm
Lifting guide device of the coke oven door extractor comprising a. According to claim 3,
The pair of rotating rollers,
The upper and lower plates are rotatably installed on the upper and lower plates through a rotating shaft with the partition walls therebetween.
Lifting guide device of the coke oven door extractor is installed to protrude to the outside of both ends of the upper and lower plates. According to claim 3,
The beam member,
Lifting guide device of a coke oven door extractor having a length longer than the width of the base plate and fixedly installed on the base plate. The method according to claim 1 or 4,
The roller support unit,
A pair of support plates that are fixed to both sides of the fixing member and support the roller surface of the rotating roller.
Lifting guide device of the coke oven door extractor comprising a. The method of claim 6,
The support plate,
A lifting guide device for a coke oven door extractor comprising a first part fixed to the fixing member and a second part supporting the roller surface of the rotating roller from both ends outside of the beam member.

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