KR101837427B1 - Worktable for repairing chamber of coke dry quenching - Google Patents

Abstract

The present invention relates to a coke dry quenching facility maintaining worktable and a maintaining method thereof. The coke dry quenching facility maintaining worktable is a worktable used in maintaining a brick and a liner inside a coke dry quenching facility. The coke dry quenching facility maintaining worktable comprises: a foothold deformed in a folding state and an unfolding state and fixed to an internal wall surface of the coke dry quenching facility; and an elevation plate deformed in a folding state and an unfolding state and installed in an upper portion of the foothold to be elevatable.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a coke-

The present invention relates to a coke dry fire extinguishing equipment repair workbench and a repairing method, and more particularly, to a coke dry fire extinguishing equipment repair workbench and a repair method capable of repairing an inner joint and a liner.

COKE DRY QUENCHING (CDQ, hereinafter also referred to as CDQ) facility is a facility for cooling the red grit coke oven dried in a coke oven. In particular, as shown in FIG. 1, a two-stage structure in which a neck portion is formed in the middle to improve the cooling efficiency of the coke to provide a prechamber 10 and a cooling chamber 20 is utilized .

The upper portion of the neck of the CDQ facility 1 is where a relatively hot glowing coke is located. In order to withstand the heat generated from the glowing coke, a heat resistant fins 30 are formed on the inner side to block heat.

On the other hand, underneath the neck portion is a place where a relatively low temperature cooling coke is located. Since the temperature is at a level that can withstand even a general steel plate, the liner 40 is installed instead of the heat-

The CDQ facility periodically closes the facility once every two years, and the inner heat exchanger 30 and the liner 40 are repaired. To this end, the inner coke is cooled to room temperature and then the liner 40 is cooled. The coke is discharged to a level just before exposure.

After that, the remaining coke is used as a steppingstep, and a workbench of a steel structure is welded thereon, thereby rebuilding the inner heat-resistant stones (30). Considering the installation time of the workbench and the solidification time of the binder for bonding the soft wire, the heat-resistant soft wire 30 requires a total of about 10 days.

When the construction of the heat resistant pipe 30 is completed, the installed workbench is disassembled and the remaining liquefied coke is discharged from the CDQ facility, and the exposed liner is sequentially repaired or replaced.

The repair work of the liner takes about 5 days in total considering the dismantling of the workbench and the discharge time of the coke.

When the conventional CDQ repair method is used, it takes at least 15 days for the maintenance work only. If all of the time consumed for delay of work, cooling of the coke, and re-injection of the red coke are summed up, There was a problem to work.

Therefore, there is a need for a new maintenance method that can shorten the idle time and increase the utilization time of the facility, and a new work table structure that enables the work table to be recycled, which has been dismantled and disused in the past.

It is an object of the present invention to provide a coke dry fire extinguishing equipment maintenance work bench capable of shortening a maintenance period by simultaneously repairing a softener and a liner.

In order to accomplish the above object, a cask dry fire extinguishing equipment maintenance workbench according to an embodiment of the present invention is a workbench used for repairing a heat-resistant door and a liner inside a coke dry fire extinguishing facility, A foot plate including a plurality of foot bridges extending in the direction of an inner wall surface from an inner center of the coke dry fire extinguishing facility; And a foot cover provided on the foot leg to divide an internal space of the coke dry fire extinguishing facility into a lower space for repairing the liner and an upper space for repairing the heat resistant door.

And the foot leg is rotatably installed upwardly and laterally from an inner center of the coke dry fire extinguishing facility.

The footrest includes a foot bottom base disposed above the blaster head of the coke dry fire extinguishing facility, a footrest upper base disposed on the footrest lower base and moved up and down in conjunction with the rotation of the footrest, Further comprising a plurality of foot support legs radially coupled to each other and provided with the same number as the foot support legs, wherein each of the plurality of foot foot supports is rotatably coupled to the foot bottom base at one end, Each of the legs is rotatably coupled to the footrest base at one end, and the other end is rotatably coupled to the center of the footrest leg, and is rotated together with the rotation of the footrest leg.

The footrest may further include a footrest fixing leg which is provided on the other end of the footrest leg and is in contact with the inner wall surface of the coke dry fire extinguishing facility.

Wherein the footplate is divided into a plurality of pieces and each piece is arranged so as to be supported by two foot plates adjacent to each other or two foot plate auxiliary legs adjacent to each other.

A lifting plate including a lifting plate leg which is installed on an upper portion of the footrest and extends radially in a radial direction to extend from an inner center of the coke dry fire extinguishing facility toward an inner wall surface; A lifting plate cover provided on the lifting plate and capable of supporting an operator and a material for repairing the heat-resistant flange of the coke dry fire extinguishing facility; And a gondola capable of moving up and down between the foot plate and the lifting plate, wherein the lifting plate and the lifting plate lid are each formed so that the central portion thereof is opened and the gondola can pass through.

The lifting plate leg is rotatably installed downward and laterally from an inner center of the coke dry fire extinguishing facility.

The lifting plate is connected to an elevating device installed at a loading portion of the coke dry type fire extinguishing facility via a lifting wire.

The lifting plate includes a lifting plate upper base connected to the lifting wire, a lifting plate lower base disposed at a lower portion of the lifting plate upper base and moved up and down in conjunction with the rotation of the lifting plate leg, And a plurality of lifting plate auxiliary legs radially coupled to the lifting plate so as to have the same number as the lifting plate legs, wherein each of the plurality of lifting plate legs is rotatably coupled to one end of the lifting plate upper base, Wherein each of the plurality of steel plate auxiliary legs has one end rotatably coupled to the lower steel base and the other end rotatably coupled to a center portion of the steel plate leg, And is rotated together.

And the lifting plate upper base and the lifting plate lower base are formed in a ring shape with the center open.

According to the coke dry fire extinguishing equipment maintenance workstation of the present invention, the following effects can be obtained.

First, repair and liner repair can be performed at the same time, shortening the total repair time.

Second, profitability can be improved by shortening maintenance time and reducing equipment downtime.

Third, it is possible to solve the problem of delaying the utilization of the residual coke by completely discharging the coke in the CDQ.

Fourth, when the liner is replaced by using the foot plate, it is possible to prevent the accident by blocking the falling object at the upper part.

Fifth, the installation and dismantling process of the workbench can be simplified and the time can be shortened.

Sixth, it is possible to recycle the workbench, thus reducing the cost.

1 is a view showing a CDQ facility,
FIG. 2 is a view showing a state in which a footrest and a lift plate are installed in a CDQ facility according to an embodiment of the present invention;
3 is a top view of an unfolded state of a footrest according to the present invention,
FIG. 4 is a side view of an unfolded state of a footrest according to the present invention, FIG.
5 is a side view of a folded state of a footrest according to the present invention,
6 is a perspective view of a folded state of the footrest according to the present invention,
FIG. 7 is a top view of an unfolded state of a steel sheet according to the present invention, FIG.
8 is a side view of a rolled steel sheet according to an embodiment of the present invention,
9 is a side view of a folded steel sheet according to the present invention,
10 is a perspective view of a folded steel sheet according to the present invention,
11 is a top view of the foot cover according to the present invention,
12 is a perspective view of the foot cover according to the present invention,
13 is a top view of a steel plate lid according to the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified, and that other specific features, regions, integers, steps, operations, elements, components, and / And the like.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

Prior to description of the present invention, a coke dry fire extinguishing facility (hereinafter referred to as CDQ facility) will be described with reference to Fig.

The CDQ facility 1 is a facility for cooling the heated coke supplied from the bucket 2 through a charging part formed on the upper part thereof. The CDQ facility 1 is divided into two spaces, which are vertically divided into two spaces. The preheating chamber 10 is provided with a red heat coke on the upper side of the narrow neck portion. The red heat coke passes through the neck portion and the cooling chamber 20 And the inert gas is supplied through the blast head 50. At this time,

The heat resistant fins 30 are constructed on the inner surfaces of the prechamber 10, the cooling chamber 20 and the neck so as to withstand the high temperature of the cryogenic coke (about 1000 캜 or higher). Since general structural materials such as iron are difficult to withstand such high temperatures, it is necessary to protect the outer skin through the heat resistant flap 30.

Since the red coke injected into the cooling chamber 20 is cooled (about 200 ° C) by inert gas, general iron material can be maintained. Therefore, a liner 40 made of iron is provided so as to protect a cooling pipe (not shown) for supplying an inert gas to the blast head 50.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

1 and 2, the maintenance workbench according to the present invention includes a footstool 100 and a footstool 150. As shown in FIG. The footplate 100 and the footplate 150 divide the internal space of the CDQ facility 1 and more specifically the internal space of the cooling chamber 20 so that an upper space for repairing the heat- And the liner 40 for repairing, and supports the operator and the material.

The footplate 100 is preferably located above the liner 40, more specifically in the area directly above the blast head 50.

Since the liner 40 is usually located at the lower portion of the blast head 50, if the foot plate 100 is provided on the upper part of the blast head 50, the maintenance work of the heat- Can be performed at the same time.

2 to 6, the foot plate 100 may be more specifically configured by a foot bottom base 140 disposed at an upper portion of the blast head 50, A pedestal leg 110 rotatably coupled to the pedestal bottom base 140 and a pedestal leg 110 having one end rotatably coupled to the pedestal upper base 130 and the other end rotatably coupled to the foot leg 110, And a foot support leg 120 rotatably coupled to a center portion of the foot support leg 120.

The scaffold lower base 140 and the scaffold upper base 130 may have a shape such as a circular plate or a circular ring and the scaffold legs 110 and the scaffold assisting legs 120 are respectively coupled along the outer circumferential surfaces thereof.

It is preferable that the foot bottom base 140 and the foot base upper base 130 are disposed on the same axis line as the blast head 50. This is because the foot plate 100 is set as a reference point for centering the CDQ facility 1 It is for.

The foot lower base 140 may be in direct contact with the blast head 50 or may be disposed away from the blast head 50.

The footrest 110 and the footrest auxiliary leg 120 are configured to support the footrest 150 when the footrest 150 is installed thereon and are rotatably installed to change the diameter of the entire footrest 100. [

The pedestal legs 110 can be pivoted on the side of the inner center of the CDQ facility 1, that is, in the inner side direction of the CDQ facility and in the upward direction, that is, in the loading direction in the CDQ facility 1, And is installed radially along the outer circumferential surface of the lower base 140.

A foot leg shaft 112 is provided at a connecting portion between one end of the foot leg 110 and the foot bottom base 140. When the foot leg 110 is moved upward and sideways with respect to the foot leg shaft 112 It is possible to rotate. Also, it is preferable that the footrest shaft 112 restricts the rotation radius of the footrest 110 in order to prevent a problem that the footrest 110 is pivoted downward past the side.

The foot support leg 120 is installed to be able to rotate laterally and downward as opposed to the foot support leg 110. When the foot support leg 110 is rotated upward, the foot support leg 120 is rotated downward, 110 are laterally pivoted, the foot support leg 120 is also pivotally coupled.

The foot supporting leg 120 may be provided at the connecting portion between the foot supporting leg 120 and the foot supporting base 120 in the same manner as the foot supporting leg 110 to limit the turning radius of the foot supporting leg 120.

A foot pivot shaft (122) is provided at a connecting portion between the center of the foot leg (110) and the other end of the foot auxiliary leg (120).

The scaffold legs 110 are formed in a general bar shape and the scaffold legs 120 are formed in a U shape in which the scaffold legs 110 can be inserted therebetween, It is preferable that the above-described footrest pivoting shafts 122 are provided at the upper end of the mold, and the two configurations are combined in a state where the footrest legs 110 are inserted therebetween.

It is preferable that the footrest leg 110 and the footrest auxiliary leg 120 are provided in the same number and that one footrest auxiliary leg 120 is coupled to each footrest leg 110.

As described in more detail later in the operation, the foot support leg 120 not only increases the support force of the footrest 110, but also increases the convenience when the footrest 100 is deformed to have a smaller diameter.

A footrest fixing leg 111 is provided at the other end of the footrest leg 110. The footrest fixing leg 111 protrudes and extends from the other end of the footrest leg 110 and directly contacts the inner surface of the CDQ facility 1 .

The pedestal leg 110 may directly contact the inner surface of the CDQ facility 1 but the pedestal 100 may not be positioned at the center of the CDQ facility 1 or the inner surface of the CDQ facility 1 may The footplate 100 may not be properly fixed to the inner surface of the CDQ facility 1 if it is deformed.

Therefore, in order to prevent such a problem, it is preferable that the sum of the radius of the foot lower base 140 and the length of the foot leg 110 is formed to be shorter than the length from the center of the CDQ equipment 1 to the inner side wall by a predetermined length .

That is, when the pedestal leg 110 is rotated to the side to maximize the radius of the pedestal 100, the other end of the foot pedestal 110 is spaced apart from the inner side surface of the CDQ facility 1. Then, when the footrest fixing leg 111 is extended, the footrest fixing leg 111 and the inner side surface of the CDQ facility 1 are abutted and fixed.

By supporting the entire pedestal 100 with the pedestal fixing legs 111 whose lengths are adjusted as described above, the pedestal 100 can be prevented from being deformed, irrespective of an error in the detailed position of the pedestal 100, So that it can be securely fixed inside the CDQ facility 1.

11 and 12, the foot plate 150 is configured to cover the upper surface of the foot leg 110 and the foot auxiliary leg 120 in a state of being laterally pivoted, It consists of pieces.

More specifically, the footrest 151 is divided into an inner footboard 151, a middle footboard 152 and an outer footboard 153. The inner footboard 151 covers the upper surface of the footboard auxiliary leg 120 along the footboard upper base 130, The center footrest 152 covers the inner region of the footrest 110 and the outer footrest 153 covers the outer region of the footrest 110.

The inner footrest 151, the central footrest 152 and the outer footrest 153 are preferably formed in the same number as the footrest auxiliary legs 120 or the footrest legs 110. The two footrest auxiliary legs 120 Or between the foot legs 110, as shown in Fig.

A groove having a shape corresponding to the shape of the foot support leg 120 is formed on the lower surface of the inner foot 151, and the inner foot 151 is fixed using the groove. The central footrest 152 and the lateral footrest 153 are connected to the inner footrest 151 so that each footrest piece can integrally form one footrest cover 150.

As shown in FIG. 2, although the purpose of the space division for simultaneously repairing the heat resistant openings 30 and the liner 40 can be attained only by the foot plate 100 described above, the maintenance easiness of the heat resistant openings 30 is increased The steel plate 200 may be separately installed.

The lift steel plate 200 is a kind of work footrest which is disposed on the upper portion of the footrest 100 and is elevated and lowered and is configured to be deformed into a structure similar to the footrest 100. A steel plate lid 250 is provided on the upper surface of the steel plate 200 to support the operator and the material.

As shown in FIGS. 7 to 10, the central portion of the lifting and lowering plate 200 is opened, and a gondola (not shown) is installed in the opening portion, so that the operator and the material can be transported to the upper portion of the lifting plate 200.

More specifically, the steel plate 200 includes a steel plate upper base 230, a steel plate lower base 240, a steel plate leg 210, and a steel plate auxiliary leg 220.

The lifting plate upper base 230 and the lifting plate lower base 240 are central supports that perform a role similar to the foot base upper base 130 and foot base lower base 140 of the foot plate 100 described above. However, since the center of the foot plate upper base 130 and the foot bottom base 140 are preferably closed, the center of the lifting plate upper base 230 and the lifting plate lower base 240 are opened, It is preferable that the gondola is formed so as to pass through.

The steel plate leg 210 and the steel plate auxiliary leg 220 also have a structure similar to that of the foot plate 110 and the foot auxiliary leg 120 of the foot plate 100 and have a similar structure, One end of the steel plate leg 210 is rotatably coupled to the lift plate upper base 230 and both ends of the lift plate auxiliary leg 220 are rotatably coupled to the lift plate lower base 240 and the lift plate leg 210 .

As a result, the steel plate legs 210 are rotated downward and laterally, and the steel plate auxiliary legs 220 are rotated upward and laterally.

Since the lifting plate 200 is not in contact with the inner surface of the CDQ facility 1, the structure corresponding to the lifting plate 111 may not be provided on the lifting plate 200. [

2, the lifting plate 200 is connected to an elevating device (not shown) provided at a loading portion of the CDQ facility 1 via a lifting wire 300. The lifting wire is wound and unwound The lifting plate 200 can be moved up and down.

As shown in Fig. 13, an opening 252 is formed at the center of the steel plate lid 250 in the same manner as the steel plate 200, and a gondola or the like is formed through the space. The elevating plate lid 250 may be divided into a plurality of pieces as in the pedestal lid 150. The elevating plate lid 251 may be a custom-made steel plate or a wood plate.

Although it is not shown in detail, it is preferable that both the foot plate 100 and the lifting plate 200 are provided with a structure for fixing the rotation state of each leg.

For example, if the footrest 100 is used as an example, the footrest shaft 112, the footrest auxiliary leg shaft 121, and the footrest pivot shaft 122 are fixed to stop the rotation, or the footrest 110, Lt; RTI ID = 0.0 > 120 < / RTI >

By fixing the rotating state in this way, sudden deformation of the foot plate 100 and the lift plate 200 can be prevented, so that the operator can safely perform the operation.

The number of the lifting plate legs 210 and the lifting plate supporting legs 220 provided on the lifting plate 200 is made larger than the number of the lifting legs 110 and the foot supporting legs 120 provided on the lifting plate 100 .

This is because the lifting plate 200 is not fixed to the inner surface of the CDQ facility 1, and therefore it is necessary to install more legs so as to more stably support the operator and the material.

Hereinafter, the installation and disassembly of the workbench according to the present invention and a method of repairing the CDQ facility using the workbench will be described.

The pedestal leg 110 and the foot auxiliary leg 120 are rotated in the upward direction and the foot auxiliary leg 120 is rotated in the downward direction, It is presumed that the state in which the lifting plate 200 is rotated to the side is referred to as the extended state of the foot plate 100 and the lifting plate 200 is also deformed into the folded state and the unfolded state.

In the past, the coke was kept in a state of being stacked higher than the liner 40 and the heat-resistant flame 30 was used as a foot plate. However, according to the present invention, it is necessary to use the coke as a footing The liner 40 can be exposed and the maintenance operation of the liner 40 can be performed at the same time.

For this purpose, first, the footrest 100 is installed. The pedestal 100 is fixed in a folded state and put into the loading portion of the CDQ facility 1. It is preferable to use a crane for inputting, but a bucket crane for injecting coke into the CDQ facility 1 may be used.

The footrest 100 is inserted into the cooling chamber 20 through the neck of the CDQ facility 1 and the footrest 100 is released from the fixture 100 to rotate the footrest 110 and the footrest auxiliary leg 120.

Since the footrest 110 is pivoted sideways from the upper side to the umbrella, the deformation is performed only by the load of the footrest 110 itself, so that the deformation can be smoothly performed without a separate power source.

In order to make the deformation more smooth, a separate pedestal that can be brought into contact with the upper portion of the blast head 50 may be provided at the lower end of the pedestal base 140. That is, when the footplate 100 descends in a state where the footplate lower base 140 is in contact with the blast head 50, the distance between the footplate upper base 130 and the footplate lower base 140 is relatively short, And the foot support leg 120 can be pivoted laterally.

When the footrest 100 is deformed into the unfolded state, the footrest 110 and the footrest auxiliary leg 120 are fixed to prevent the footrest 110 from rotating in the folded state, Make contact with the side.

When the footrest fixing leg 111 is fixed to the inner side of the CDQ facility 1, the footrest cover 150 is installed on the upper surface of the footrest leg 110 and the footrest supporting leg 120.

The foot cover 150 is formed so that a plurality of pieces can be assembled and assembled, so that some pieces can be disassembled and the worker can move downward.

In the upper space of the scaffold 100, the operator repairs the heat-resistant sidewall 30 located on the wall surface of the CDQ facility 1 and repairs the liner 40 in the lower space of the scaffold 100. [ At this time, the operator who repairs the liner 40 uses the coke as a scaffold. The coke is discharged at a slow speed, and the exposure is progressed slowly from the upper end to the lower end of the liner 40, so that sequential maintenance work can be performed.

When the pedestal 100 is installed, the crane and the pedestal 100 are disengaged and the raised steel plate 200 in a folded state is inserted.

The lifting plate 200 is lowered until it touches the foot plate 100. When the lifting plate lower base 240 contacts the foot plate 100, the lifting plate 200 is released from the fixed state, So that the steel plate auxiliary leg 220 is laterally turned.

When the steel plate leg 210 and the steel plate auxiliary leg 220 are rotated, the steel plate is fixed again to stop the rotation, and the steel plate lid 250 and the gondola are installed on the steel plate 200.

When the elevating plate lid 250 and the gondola are installed, the elevating device (not shown) provided at the loading portion of the CDQ facility 1 is connected to the elevating plate 200. The lifting and lowering device is preferably a device capable of winding and unwinding the wire, and the lifting wire 300 coupled to the lifting device can be coupled to the lifting device upper base 230 to elevate and lower the lifting device 200 as a whole.

When the lifting wire 300 is coupled to the lifting steel plate 200, the lifting steel plate 200 is lifted to form a space between the lifting plate 100 and the lifting steel plate 200, It is possible to perform an operation of repairing the heat-resistant flame 30 on the wall surface of the lower portion of the flame 200.

The repair operation of the heat resistant fins 30 is performed on the foot plate 100 and the lift plate 200 and the maintenance work of the liner 40 proceeds under the foot plate 100. [ The operator who repairs the liner 40 proceeds to repair the liner 40 by using the upper surface of the discharged coke as a scaffold to the extent that the upper end of the liner 40 is exposed.

The coke is gradually discharged, and the liner is gradually repaired downward.

After completion of the repair work of the heat resistant welded joint 30 and the liner 40, the steel plate lid 250 of the steel plate 200 is first dismantled and the steel plate 200 is released from the fixed state and deformed into the collapsed state And then carried out through the loading part.

After that, the scaffolding 100 also disassembles the scaffolding cover 150, then releases the fixed state and transforms it into a folded state, and then takes it out through the loading part.

Since the foot plate 100 and the lifting plate 200 can be taken out again in the initial state, the foot plate 100 and the lifting plate 200 can be reused, and the time and resource consumption for installation and disassembly can be reduced There are advantages.

Accordingly, it is possible to shorten the repair work of the heat resistant flap 30 and the liner 40, which have been consumed for about 15 days in the past, to about 10 days, and to reduce the downtime of the CDQ facility 1.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand.

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

1: Coke dry fire extinguishing facility (CDQ facility) 2: Bucket
10: Prechamber 20: Cooling chamber
30: Heat-resistant Yan and 40: Liner
50: Blast head
100: foot plate 110: foot plate
111: footrest fixing leg 112: footrest shaft
120: Foot support bridge 121: Foot support bridge shaft
122: Footstep rotating shaft 130: Footstep upper base
140: foot bottom base 150: foot cover
151: inner stool 152: central stool
153: Outer foot plate 200:
210: a steel plate leg 211: a steel plate leg axis
220: a steel plate auxiliary bridge 221: a steel plate auxiliary bridge shaft
222: Raised steel plate rotating shaft 230: Raised steel plate upper base
231: first lift-up space 240:
241: second lift space 250: lift plate cover
251: a steel plate cover piece 252: a third lift space
300: lifting wire
H: Heat coke C: Cooling coke

Claims (10)

It is a work bench used for repairing heat resistance and liner inside a coke dry fire extinguishing system.
A foot plate disposed at a higher position than the liner, the foot plate including a plurality of foot bridges extending radially and extending from an inner center of the coke dry digester to an inner wall surface; And
And a foot cover installed on the foot leg to divide the internal space of the coke dry fire extinguishing facility into a lower space for repairing the liner and an upper space for repairing the heat resistant door,
Wherein the foot leg is rotatably installed upwardly and laterally from an inner center of the coke dry fire extinguishing facility.
delete The method according to claim 1,
The footrest includes a foot bottom base disposed above the blaster head of the coke dry fire extinguishing facility, a footrest upper base disposed on the footrest lower base and moved up and down in conjunction with the rotation of the footrest, Further comprising a plurality of foot support legs radially coupled to each other and provided with the same number of foot support legs,
Each of the plurality of foot legs is rotatably coupled to one end of the foot bottom,
Each of the plurality of the foot support legs is rotatably coupled to the foot support base at one end thereof and rotatably coupled to the center portion of the foot support leg at the other end thereof so as to be rotated together with the rotation of the foot support leg Features, coke dry fire extinguishing equipment maintenance workbench.
The method of claim 3,
The cask dry fire extinguishing system maintenance workbench according to any one of the preceding claims, further comprising a footrest fixing leg which is provided on the other end of the foot leg and is in contact with an inner wall surface of the coke dry fire extinguishing facility.
The method according to claim 1,
Wherein the footplate is divided into a plurality of pieces and each piece is arranged to be supported by two footplates adjacent to each other or by two footplate auxiliary legs adjacent to each other.
The method according to claim 1,
A lifting plate including a lifting plate leg which is installed on an upper portion of the footrest and extends radially in a radial direction to extend from an inner center of the coke dry fire extinguishing facility toward an inner wall surface;
A lifting plate cover provided on the lifting plate and capable of supporting an operator and a material for repairing the heat-resistant flange of the coke dry fire extinguishing facility; And
And a gondola capable of ascending and descending between the foot plate and the lifting plate,
Wherein the elevating plate and the elevating plate lid are each formed so that a central portion thereof is opened so that the gondola can pass therethrough.
The method of claim 6,
Wherein the lifting plate leg is rotatably installed downward and laterally from an inner center of the coke dry fire extinguishing facility.
The method of claim 7,
Wherein the lifting plate is connected to an elevating device installed at a loading part of the coke dry fire extinguishing facility via a lifting wire.
The method of claim 8,
The lifting plate includes a lifting plate upper base connected to the lifting wire, a lifting plate lower base disposed at a lower portion of the lifting plate upper base and moved up and down in conjunction with the rotation of the lifting plate leg, Further comprising a plurality of lifting plate auxiliary legs radially coupled to the lifting plate legs,
A plurality of said steel plate legs each having one end rotatably coupled to said steel plate upper base,
Wherein each of the plurality of steel plate auxiliary legs has one end rotatably coupled to the lower steel base and the other end rotatably coupled to a center portion of the steel plate leg, Wherein the coke-type fire extinguishing system is pivoted together.
The method of claim 9,
Wherein the lifting plate upper base and the lifting plate lower base are formed in a ring shape with a center open.

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