KR101220273B1 - Opening/closing apparatus of lid and the method thereof - Google Patents

Abstract

PURPOSE: A lid opening/closing device and a method thereof are provided to implement stable opening and closing of a charging hole by applying a constant magnetic force between a lid lifter and a lid. CONSTITUTION: A lid opening/closing device includes a body(24) moving in horizontal and vertical directions, a lid electromagnet(26) which is arranged at the underside of the body, a lid cleaner(28) which is connected to one side of the body and moved in the vertical direction, a driving unit(30) which is installed at one side of the body and drives the lid cleaner in the vertical direction, and a control unit which controls the operation of the driving unit and the lid electromagnet.

Description

Lead switchgear and its method {Opening / closing apparatus of lid and the method

The present invention relates to a lead opener and a method thereof, and more particularly, to a lead opener and a method for stably opening and closing the lead installed in the charging opening of the coke oven.

In general, coke used in blast furnace operation of steel mills undergoes several stages of processing in advance. For example, coke is charged with a large amount of raw coal (coal) in a carbonization chamber of a coke oven, heated at approximately 1400 ° C. for about 18 hours, extruded, and cooled in a separate extinguishing system. Produced through the process.

Here, the raw coal supply device which supplies coal which is raw coal is provided in the upper part of a coke oven, and the charging opening for charging coal of coke is provided in the upper surface of a coke oven. The charging inlet is closed through a lid formed of steel, and when the coal is charged, it is opened by separating the lead using a lead lifter installed outside the coke oven. At this time, an electromagnet is provided on the bottom of the lead lifter, and the lead can be attached using magnetic force.

However, in the process of charging coal into the coke oven, coal may fall around the charging port and coal remaining in the feeder may fall to the top of the lid even after the charging is closed after charging is completed. In particular, if coal dropped on the upper part of the lead continues to accumulate, the magnetic force formed in the electromagnet when opening the lead does not act uniformly on the lead and thus cannot be stably attached to the lead electromagnet. In the process of opening or closing the lid, the lead may be separated from the electromagnet and fall, causing a safety accident. In severe cases, since the magnetic force is canceled by the coal accumulated on the upper part of the lead, the lead is not attached to the electromagnet, which makes it impossible to open and close the charging hole.

In this regard, the following prior art document (Korean Patent No. 0934285) discloses a method for removing foreign matter on the surface of a charging hole and a lid. In this case, only the foreign matters at the connection portion between the lead and the charging hole are removed, and foreign matters attached to the lead surface cannot be removed, so that the opening and closing of the lead by the lead lifter are still hindered.

KR 0938285 B1

The present invention provides a lid opening and closing apparatus and method for easily removing foreign substances such as coal present on the coke oven.

The present invention provides a lid opening and closing device and a method for facilitating opening and closing of a charging slot.

The present invention provides a lid opener and a method for stably operating a coke oven plant.

A lid opening and closing device according to an embodiment of the present invention includes: a body moving in a vertical direction and a horizontal direction; A lead electromagnet provided under the fuselage; A lead cleaner connected to one side of the fuselage in a vertical direction; A driving unit provided at one side of the body to drive the lead cleaner in a vertical direction; And a controller for controlling the operation of the driving unit and the lead electromagnet.

The lead cleaner may be formed of a body having one side connected to the body and a scraper connected to the other side of the body to scrape off foreign matter.

In particular, the body is connected to the body via a rotating shaft, the scraper may move in the vertical direction about the rotating shaft.

The scraper may be formed integrally with the body or may be connected to the scraper.

The driving unit may be an electromagnet that generates a magnetic force by receiving power, and the lead cleaner may be formed to descend by its own load and ascend by the magnetic force formed in the driving unit.

The body may be formed with a stopper in contact with the body to limit the degree of inclination of the body.

A stopper for limiting the degree of inclination of the body may be formed at the connection portion of the body and the body.

In addition, the body may be formed with a stopper for contacting the body to limit the degree of inclination of the body.

The lid opening and closing method according to the embodiment of the present invention includes the steps of advancing the fuselage to the upper side of the coke oven, the end of the lead cleaner connected to one side of the fuselage and inclined by its own load to the top of the coke oven; Advancing the fuselage to the charging side of the coke oven while the end of the lead cleaner is in contact with the top of the coke oven to remove foreign substances present on the top surface of the coke oven; Lowering the fuselage to attach the lead to a lead electromagnet provided under the fuselage and raising the lead cleaner by using a driving part provided in the fuselage; And raising the fuselage to open the charging holes.

When the fuselage is lowered in the process of attaching the lid to the lower part of the fuselage, magnetic force is formed in the lead electromagnet and the driving part. When the magnetic force is formed in the driving part, the lead cleaner is attached to the driving part and the end of the lead cleaner is raised. .

The lid opening and closing apparatus and the method according to the embodiment of the present invention can easily remove foreign substances present on the upper surface of the coke oven. As a result, the magnetic force can be constantly acted between the lead lifter and the lid during opening and closing of the charging hole, thereby stably opening and closing the charging hole. In addition, it is possible to prevent the occurrence of safety accidents and work delay due to poor mounting and detachment of the lead.

In addition, the lid opening and closing apparatus and the method according to the embodiment of the present invention can effectively remove the foreign matter present on the lead surface by using the process of opening the lid as it is.

The lid opening and closing apparatus and the method according to the embodiment of the present invention can prevent the overload of equipment by removing foreign substances on the lid surface by using the self-weight of the lead cleaner.

1 is a view showing the configuration of a coke oven installation according to an embodiment of the present invention.
Figure 2 is a plan view showing the configuration of a lead opening and closing apparatus according to an embodiment of the present invention.
3 is a cross-sectional view of the lid opening and closing device shown in FIG.
4 is a cross-sectional view showing an operating state of a lead cleaner according to an embodiment of the present invention.
5 to 9 are cross-sectional views showing a process of opening the lid using the lead opening and closing apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and the present embodiments are only provided to make the disclosure of the present invention complete and to those skilled in the art. It is provided for complete information.

The lid opening and closing method and the method according to the present invention are applied to open and close the lid (lid) installed in the storage device for storing various kinds of raw material, or the charging hole for charging the raw material in the heating furnace, in the present embodiment coke A lid lifter for opening and closing the lid installed at the charging slot of the oven will be described.

The lead lifter described in the embodiment of the present invention is provided with a lead cleaner for removing foreign substances such as coal present on the upper surface of the lid. The closure can be performed stably.

1 is a view showing the configuration of a coke oven installation according to an embodiment of the present invention, Figure 2 is a plan view showing the configuration of a lead lifter according to an embodiment of the present invention, Figure 3 is a view of the lead lifter shown in Figure 2 It is a cross section.

Referring to FIG. 1, the coke oven equipment includes a coke oven 40 having a charging hole 42 for charging raw coal, a lid 44 for opening and closing the charging hole 42, and a coke oven 40. ) A lead lifter installed at the upper part and supplying and removing a raw coal supply device 10 for supplying raw coal to the coke oven 40 and a lead 44 connected to the raw coal supply device 10 and installed at the charging hole 42. And 20.

Here, the raw coal supply device 10 is charged with coal and moved along the upper part of the coke oven 40, and is connected to the lower part of the charging vehicle 12 and discharged from the charging vehicle 12. It includes a transfer screw 14 and the connecting pipe 16 for supplying the coal to the coke oven (40). The raw coal supply device 10 may be configured in various forms. The lead lifter 20 is connected to the raw coal supply device 10 so as to be movable in the vertical direction and the horizontal direction by driving the driving means 22. The drive means 22 may be formed in various forms such as a cylinder or a motor having a drive shaft.

2 and 3, the lead lifter 20 includes a body 24 which is moved in the vertical direction and the left and right directions by the driving means 22; A lead electromagnet 26 provided at the bottom of the body 24; A lead cleaner 28 provided on one side of the body 24; And a driving unit 30 provided at an upper side of the body 24 to attach the lead cleaner 28.

The body 24 is bar-shaped, and the lead electromagnet 26 is formed in the bottom surface. Here, the body 24 is described in a bar shape, but may be formed in various forms. In addition, according to FIG. 3, the lead electromagnet 26 is formed by being biased to one bottom surface of the body 24, but the position at which the lead electromagnet 26 is formed is not limited thereto.

The lead electromagnet 26 forms a magnetic force to attach the lead 44 closing the charging port 42. The lead electromagnet 26 is connected through a power supply unit (not shown) for supplying power and a control unit for controlling the overall operation of the lead lifter 20, and under the control of the control unit, the lead 44 is repeatedly formed and extinguished. Carry out the mounting and desorption.

The lead cleaner 28 includes a body 27 connected to one side of the body 24 and a scraper 29 provided on one side of the body 27 to scrape off foreign substances present on the surface of the lead 44. .

The body 27 is formed in a 'c' shape, and both ends thereof are connected to the body 24 through rotation shafts 31 such as hinges while inserting one end of the body 24. Here it is described that the body 27 is formed in a 'c' shape, but is not limited thereto.

Body 27 is configured such that the end portion of the scraper 29 is inclined descending while rotating about the rotary shaft 31 by its own load. At this time, the body 27 rotates about its rotation shaft 31 by its own load, and its end is lowered. When the body 27 is attached to the driving unit 30, the body 27 rotates in the reverse direction about the rotation shaft 31 and its end is raised. It is formed to. As such, the body 27 is rotatably formed about the rotation shaft 31, so that the body 27 contacts the upper surface of the coke oven 40 in order to remove foreign substances existing on the upper surface of the lid 44. The rotation should stop at the position.

Accordingly, the stopper 32 may be formed at a predetermined position of the body 24 to limit the rotation range of the body 27. In the present embodiment, as shown in FIGS. 2 and 3, a stopper 32 is formed on one side of the upper surface of the body 24 to protrude to both sides of the body 24. The stopper 32 is formed to be able to contact the upper surface of the body 27 when the body 27 reaches a predetermined position, that is, a position to remove foreign matter existing on the lid 44. In this case, an inclined surface may be formed at a portion of the stopper 32 where the upper surface of the body 27 contacts, without stopping the rotation of the body 27 and stopping the body 27 at a predetermined position. Here, the stopper 32 is provided to protrude above the body 24 and is formed to contact the body 27, but the stopper 32 may be formed on the body 27. In addition, by forming a stepped structure on the connection portion of the body 27 and the rotating shaft 31 may also be configured so that the body 27 can rotate only within a certain range, it can limit the rotation range of the body 27 If it is a configuration, the shape or position to be formed is not limited thereto.

The scraper 29 is a part for removing the foreign matter present on the upper part of the lid 44. A taper may be formed at the part directly contacting the lid 44, or a tooth may be formed to facilitate the removal of the foreign substance. have. In addition, the scraper 29 may be integrally formed with the body 27 or replaceably connected. Since the scraper 29 is easy to be worn due to frequent use, when the scraper 29 is connected to the body 27 like the latter, the replacement work can be easily performed and the cost can be reduced.

The driver 30 is provided at one side of the body 24 to move the lead cleaner 28 in the up and down direction. An electromagnet may be used as the driving unit 30, and various types of driving means capable of moving the lead cleaner 28 in the vertical direction may be used.

In the present embodiment, an electromagnet is used to generate magnetic force by receiving power from the driving unit 30. The driving unit 30 extends longer than the length of the fuselage 24 to one side upper surface of the fuselage 24 to protrude, and is formed to attach the body 27 to the bottom of the fuselage 24. The driving unit 30 does not form a magnetic force when the body 24 moves toward the lead 44 in order to open the lid 44. The lead electromagnet 26 provided under the body 24 is provided with the lead 44. When it reaches the top and the body 24 begins to descend, a magnetic force is generated to attach the lead cleaner 28 to the bottom thereof. This may be controlled by a controller that controls the overall operation of the lead lifter 20.

4 is a cross-sectional view illustrating an operating state of a lead cleaner according to an exemplary embodiment of the present invention.

4 (a) shows a state in which the magnetic force is not formed in the drive unit 30 such that the body 27 is inclined by its own load (including the load of the scraper 29). The lid cleaner 28 maintains such a state when the body 24 moves toward the lid 44 to open the charging hole 42. That is, the body 27 of the lid cleaner 28 is inclined by its own load so that the scraper 29 contacts the upper surface of the coke oven 40 to remove foreign substances on the upper surface of the coke oven 40 including the lid 44. It can be removed.

4 (b) shows a state in which the body 27 is attached to the drive unit 30. The fuselage 24 advances to the lid 44 and then descends to lift the lid 44 through the lid electromagnet 26, avoiding the lid cleaner 28 so as not to interfere with the attachment of the lid 44. You have to. That is, when the body 27 of the lead cleaner 28 is inclined downward, the lead cleaner 28 may be attached to the driving unit 30 because the body 27 may contact the lead 44. By equilibrating, the lead 44 can be attached stably.

Through such a configuration, the lead lifter 20 may remove foreign substances existing on the lid 44 in the process of opening the lid 44 of the coke oven 40. That is, in the process of moving the fuselage 24 to the lid 44 through the drive means 22, the lead cleaner 28 is inclined downward by its own weight and contacts the upper surface of the coke oven 40. When the body 24 is advanced to the lid 44, foreign matter on the upper surface of the coke oven 40 including the lid 44 is removed by the lid cleaner 28. At this time, since the lead cleaner 28 is located in front of the lead electromagnet 26, the lead cleaner 28 moves over the lead 44 before the lead electromagnet 26 reaches the top of the lead 44. Foreign material may be removed as it passes. Therefore, the magnetic force generated in the lead electromagnet 26 acts uniformly on the lead 44, thereby stably attaching the lead 44.

Looking at the method of opening and closing the lid using a lead opening and closing device according to an embodiment of the present invention configured as described above are as follows.

5 to 9 are cross-sectional views showing a process of opening a lead using a lead opener according to an embodiment of the present invention.

First, the body 24 of the lead lifter 20 is advanced to the charging port 42 side of the coke oven 40 through the driving means 22 (see FIG. 5). At this time, the body 27 connected to one side of the body 24 is inclined by its own load so that the scraper 29 connected to the end of the body 27 contacts the upper surface of the coke oven 40.

Next, with the scraper 29 in contact with the upper surface of the coke oven 40, the fuselage 24 is advanced to the charging port 42 side of the coke oven 40 through the drive of the drive means 22 ( 6). At this time, the scraper 29 is in contact with the upper surface of the coke oven 40, while moving in the same direction as the moving direction of the fuselage 24, foreign matter such as coal attached to the upper surface of the coke oven 40 (50) Scrape off).

The process of scraping off the foreign matter 50 on the lid 44 may be performed by repeatedly moving forward and backward of the fuselage 24. By repeatedly removing the foreign material 50 in this manner, since the foreign material 50 on the upper surface of the lead 44 can be removed cleanly, the lead 44 can be more stably attached to the lead electromagnet 26. Can be.

Next, when the lead electromagnet 26 provided in the lower part of the fuselage 24 is located above the charging hole 42, the body 24 is lowered by the driving means 22 to lead the lead electromagnet 26. (44) It is in contact with the top (see Fig. 7). When the body 24 starts to descend, the lead cleaner 28 is attached to the drive unit 30 by applying power to the drive unit 30 under the control of the control unit to generate magnetic force (see FIG. 8). At this time, the lead cleaner 28 is raised by hitting the upper surface of the coke oven 40 as the body 24 is lowered, attached to the drive unit 30 is a magnetic force is formed to balance the opening of the lid 44 Avoid in places that do not disturb. Here, the lead cleaner 28 is described as being avoided while being attached to the drive unit 30 to form an equilibrium. However, the lead cleaner 28 may be avoided in any form as long as it does not prevent the lid 44 from opening and closing.

When the lead 44 is attached to the lead electromagnet 26, the body 24 is raised and retracted by driving the driving means 22 to separate the lead 44 from the charging hole 42 to charge the charging hole 42. To open.

Thereafter, the raw coal supply device 10 is connected to the charging port 42 to charge raw coal, that is, coal into the coke oven 40.

When the charging of the coal is completed, the body 24 is moved forwards and downwards through the drive means 22 to the charge inlet 42 to close the charge 42 with the lid 44, and the body 24 is closed. Ascend and retract. Here, in the process of opening and closing the lid 44 of the lid opening and closing device, the driving unit 30 forms a magnetic force except when the body 24 is advanced to open the charging hole 42. That is, since the lead cleaner 28 removes the foreign matter 50 on the upper surface of the lid 44 in the process of moving the body 24 toward the charging hole 42 side, the lid cleaner 28 is attached to the driving unit 30 in other processes. Preferably avoided in a position that does not prevent the lid 44 from opening and closing.

As described above, in the detailed description of the present invention, specific embodiments have been described. However, various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

10: raw coal supply device 20: lead lifter
22: drive means 24: fuselage
26: lead electromagnet 27: body
28: lead cleaner 29: scraper
30: drive unit 31: rotating shaft
32: stopper 40: coke oven
42: charging hole 44: lead
50: foreign matter

Claims (11)

A body moving in the vertical direction and the horizontal direction;
A lead electromagnet provided under the fuselage;
A lead cleaner connected to one side of the fuselage in a vertical direction;
A driving unit provided at one side of the body to drive the lead cleaner in a vertical direction; And
A controller for controlling the operation of the driving unit and the lead electromagnet;
Lead switchgear comprising a. The method according to claim 1,
The lead cleaner is a lead opening and closing device formed of a scraper, one side is connected to the body and the other side of the body is scraper to scrape off foreign matter. The method according to claim 2,
The body is connected to the body through a rotating shaft, the scraper is a lead opening and closing device for moving in the vertical direction about the rotating shaft. The method according to claim 2,
The scraper is formed integrally with the body, the lead opening and closing device connected to replace. The method according to claim 1 or 3,
The driving unit is an electromagnet that forms a magnetic force by receiving power,
The lid cleaner is lowered by its own load, the lid opening and closing device formed so as to rise by the magnetic force formed in the drive unit. The method according to claim 2,
And a stopper formed in the fuselage in contact with the body to limit the degree of inclination of the body. The method according to claim 2,
Lead opening and closing device formed with a stopper for limiting the degree of inclination of the body at the connection portion of the body and the body. The method according to claim 2,
Lead body opening and closing device is formed in the body in contact with the body to limit the degree of inclination of the body. Advancing the fuselage to an upper side of the coke oven to contact an end of a lead cleaner connected to one side of the fuselage and inclined by its own load to the coke oven;
Advancing the fuselage to the charging side of the coke oven while the end of the lead cleaner is in contact with the top of the coke oven to remove foreign substances present on the top surface of the coke oven;
Lowering the fuselage to attach the lead to a lead electromagnet provided under the fuselage and raising the lead cleaner by using a driving part provided in the fuselage; And
Raising the fuselage to open a charging hole;
Lead opening and closing method comprising a. The method according to claim 9,
And a magnetic force is formed in the lead electromagnet and the driving unit when the body is lowered in the process of attaching the lead to the bottom of the body. The method of claim 10,
And the lead cleaner is attached to the driving unit when the magnetic force is formed in the driving unit, and the end portion of the lead cleaner rises.

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