KR101867705B1 - Repairing device for coke oven - Google Patents

Abstract

An inner wall repair apparatus for a coke oven is disclosed. The present invention provides an interior wall repairing apparatus for a coke oven comprising a main body having a storage space therein for storing therein a repair material mixed with a monolithic refractory and water, An agitating / combining unit moving the agitating / And a scattering part connected to the agitating and moving part and scattering and scattering the maintenance material moved by the agitating and moving part, wherein the body part is provided in a hollow pipe shape inside, At one end of the main body, an opening through which the maintenance material is discharged may be formed in communication with the storage space.

Description

{Repairing device for coke oven}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner wall repair apparatus for a coke oven, and more particularly to an inner wall repair apparatus for a coke oven.

In general, Cokes, a subsidiary material to be used when producing molten iron in the blast furnace, serves as a heat source, a reducing agent, and the like in the blast furnace and is used as means for ensuring air permeability.

These coke ovens are produced in coke ovens, where the coke oven is a device for producing coke by carburizing cohesive coals.

A brief description of a method for manufacturing coke is as follows. Chargeable coal is charged into a carbonization chamber of a coke oven through a plurality of entry openings formed in the upper part of a coke oven using a charging car.

The coke oven is closed and the charged coal is indirectly heated to a temperature of approximately 1,300 ° C. to produce a glow-in-coke oven for approximately 18 hours.

The coal charged into the carbonization chamber generates coke oven gas (COG) by pyrolysis during the process of carbonization. The generated coke oven gas (COG) is sent to the conversion process via the riser, the bend, and the main body of the coke oven.

In addition, the red coke produced in the coke oven is pushed out of the coke oven by the pusher car. At this time, the red coke discharged from the coke oven is transferred to a bucket through a transfer car, and then transferred to a digesting tower. After completion of the digestion process, the coke is finally completed.

On the other hand, the riser pipe connected to the carbonization chamber and the riser pipe for transferring the high temperature coke oven gas (COG) to the conversion process must be maintained at a high temperature, so that not only the carbonization chamber but also the inner and outer walls of the riser pipe, ).

In particular, since the riser pipe is likely to melt or pierce by the high-temperature coke oven gas (COG), the inner wall of the riser pipe must be built up into a fissure.

However, as the number of years of operation increases, many damage occurs to the inner wall of the bow inlet and the rising tube. For example, a combustible substance such as coal and tar contained in the coke oven gas (COG) passing through the inside of the riser pipe is attached to the inner wall of the riser pipe and is removed together with a part of the riser pipe. The inner wall is greatly damaged.

In addition, cracks may be generated at joints connecting the soft bristles due to the temperature change due to the opening of the intestinal mouth and the ascending tube.

If the damage to the intestinal inlet or the uprising pipe is left untreated, the damaged area may enlarge to cause a pore in the intestinal inlet or the uprising pipe, and a large amount of coke oven gas (COG) It may be ejected outside and cause air pollution.

Accordingly, there has been proposed an inner wall repair apparatus for a coke oven for repairing an inner wall for a coke oven which sprayed a repair material mixed with water and sand on a damaged intestinal inlet or an inner wall of a riser.

However, in the conventional inner wall repairing apparatus for coke oven, the repair material is pressurized and injected with compressed air. In the conventional inner wall wall repair apparatus for coke oven according to the prior art, Therefore, the repairing material is injected into a large mass (that is, a shape in which the ratio of the surface area to the volume is small) is required to be repaired.

When the sprayed repellent material has a large lump shape, the amount of accumulation on the bottom surface of the carbonization chamber falls more than the amount of the deposited repellent material adhered to the cracked portion or the crack portion generated in the joint between the softened wool There is a problem that unnecessary waste of the repairing material is generated, thereby increasing the maintenance cost.

Further, there arises a problem that accompanied by an additional operation of removing the repair material accumulated on the bottom surface of the carbonization chamber.

Korean Patent Publication No. 10-2014-0120535, (Apr. 14, 2014) Korean Registered Patent No. 10-0629408, (September 21, 2006)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an inner wall repair apparatus for a coke oven capable of supplying a fine lumpy repair material having a large surface area to volume ratio to an inner wall damaged area of a coke oven requiring repair.

According to an aspect of the present invention, there is provided a refractory comprising: a main body in which a storage space for storing a maintenance material mixed with a monolithic refractory material and water is formed; and a stirring member connected to the main body, A combined moving part; And a scattering part connected to the agitating and moving part and scattering and scattering the maintenance material moved by the agitating and moving part, wherein the body part is provided with a hollow pipe shape inside, And an opening portion through which the maintenance material is communicated is formed at one end portion of the main body portion so as to communicate with the storage space, and the interior wall maintenance device for a coke oven.

The stirring / combining moving unit includes: a rotating shaft passing through the storage space of the main body part and connected to the main body part so as to be relatively rotatable; A blade provided on an outer circumferential surface of the rotary shaft for moving the maintenance material in a longitudinal direction of the rotary shaft; And a rotation driving unit connected to the rotation shaft and rotating the rotation shaft.

And the blade is formed to extend spirally along the longitudinal direction of the rotary shaft.

The blade may be provided in a part of the rotation axis.

The blade may be disposed at one end region of the main body portion where the opening is formed.

Wherein the scattering unit includes: a body part for a scattering part connected to the body part and supporting the rotation shaft; And an impeller which is provided on an outer circumferential surface of the rotary shaft and moves the repair material discharged from the opening of the body portion in a radial direction of the rotary shaft.

Wherein the body for distributing dust has a horizontal body rotatably connected to the rotary shaft and spaced apart from the body by a predetermined distance and blocking the falling of the maintenance material discharged from the opening of the body; And a vertical body having one end coupled to the transverse body and the other end coupled to the main body, and spaced apart from each other by a predetermined interval.

The vertical body may be spaced at equal angular intervals with respect to the center of the horizontal body.

The plurality of impellers may be disposed symmetrically with respect to the center of the horizontal body.

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Embodiments of the present invention include a dispersing unit for scattering and scattering a maintenance material moved by a stirring and moving unit for stirring and moving a maintenance material in a storage space and a scattering unit for scattering the maintenance material moved by the stirring and moving unit, It is possible to increase the efficiency of attaching the repair parts to the repair parts, thereby preventing unnecessary waste of the repair parts and minimizing the repair parts that fall down without being attached to the damaged parts.

1 is a view illustrating an inner wall repair apparatus for a coke oven according to an embodiment of the present invention.
FIG. 2 is a view showing the inside of the inner wall wall maintenance apparatus for the coke oven of FIG. 1. FIG.
3 is an operational state view of the inner wall wall maintenance apparatus for the coke oven of FIG.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in order to avoid unnecessary obscuration of the present invention.

FIG. 1 is a view illustrating an inner wall repair apparatus for a coke oven according to an embodiment of the present invention. FIG. 2 is a view showing the interior of the inner wall repair apparatus for the coke oven of FIG. 1, Fig.

The coke oven (not shown) of this embodiment includes a plurality of carbonization chambers (not shown) and a combustion chamber (not shown) for supplying heat to the carbonization chambers (not shown). The coke oven (not shown) receives coal (not shown) through a charging car (not shown) and charges coal into a carbonization chamber (not shown) The outside air is cut off and dried for about 18 hours to produce a glow coke (not shown) in which the volatiles contained in the coal are removed.

The coal charged into the carbonization chamber (not shown) generates coke oven gas (COG) by pyrolysis during the process of carbonization. The generated coke oven gas (COG) is sent to the conversion process via an uprising pipe H, a bending portion (not shown), and a collecting main pipe (not shown) provided in a coke oven (not shown).

(Not shown) and the inner wall of the uprising pipe H must withstand high temperatures, so that the inner wall of the uprising pipe H and the intestinal inlet (not shown) (Not shown) and the inner wall of the riser pipe H are damaged as the service life is increased. In particular, the inner wall of the riser pipe H is continuously exposed to the high temperature coke oven gas (COG) (B) and joints on the inner wall of the riser pipe (H) due to a sudden temperature change due to the opening of the hose (H).

To repair such damage, an inner wall repair apparatus for coke oven according to this embodiment is used. 1 to 3, the inner wall repair apparatus for a coke oven according to an embodiment of the present invention includes a storage space 111 in which a repair material P mixed with a monolithic refractory material and water is stored, A stirring unit 120 connected to the main body 110 for stirring and moving the maintenance material P in the storage space 111 and connected to the stirring and moving unit 120, And a scattering part 130 for scattering and scattering the maintenance material P moved by the combined moving part 120. In the present embodiment, the repair material P is prepared by mixing a monolithic refractory material such as sand and water.

The main body 110 of the present embodiment is provided with a hollow pipe shape inside. In the interior of the main body 110, a storage space 111 in which the repair material P is stored is hollowed.

At one end of the main body 110, an opening 112 communicating with the storage space 111 and discharging the maintenance material P is formed. The other end portion located on the opposite side of the one end portion of the body portion 110 where the opening 112 is formed is sealed to prevent the deterioration of the repair material P. [

A supply port (not shown) is formed in the main body 110 to supply the maintenance material P and an open / close lid (not shown) for opening and closing a supply port (not shown) is provided.

The stirring and moving unit 120 is connected to the main body 110 and stirs and moves the maintenance material P in the storage space 111. The stirring and moving unit 120 includes a rotating shaft 121 which passes through the storage space 111 of the main body 110 and is rotatably connected to the main body 110 so as to be rotatable relative to the main body 110, A blade 122 for moving the maintenance material P in the longitudinal direction of the rotary shaft 121 and a rotary drive unit (not shown) connected to the rotary shaft 121 for rotating the rotary shaft 121.

2, the rotation shaft 121 is rotatably connected to the other end portion of the main body portion 110 at the other end thereof, and passes through the storage space 111 of the main body portion 110. A blade 122 for moving the maintenance material P in the longitudinal direction of the rotary shaft 121 is provided on the outer peripheral surface of the rotary shaft 121.

The blade 122 rotates together with the rotation shaft 121 in conjunction with the rotation of the rotation shaft 121 to stir the maintenance material P and rotate the maintenance material P in the longitudinal direction of the rotation shaft 121, (112).

The blade 122 of this embodiment is formed to extend spirally along the longitudinal direction of the rotating shaft 121. The blade 122 of the present embodiment has a diameter substantially equal to the inner diameter of the main body 110 to prevent the maintenance material P from being separated from the storage space 111 of the main body 110.

In addition, the blade 122 of this embodiment is provided in a part of the rotating shaft 121. [ That is, the blade 122 of the present embodiment is disposed at one side end region of the main body 110 where the opening 112 is formed and is formed to have a length smaller than the length of the main body 110, Thereby increasing the storage space 111 of the main body 110 and facilitating the supply of the maintenance material P to the storage space 111.

In addition, the blade 122 of the present embodiment performs the function of moving the maintenance material P and at the same time, the irregular refractory constituting the maintenance material P and the water are secondarily mixed again to improve the adhesion force of the maintenance material P There is an advantage to be able to.

The rotation driving unit (not shown) is connected to the rotation shaft 121 and rotates the rotation shaft 121. The present invention is not limited to the scope of the present invention, and may include a rotation handle (not shown) connected to the rotation shaft 121, (Not shown) of the present embodiment may be used.

The scattering part 130 is connected to the agitation and movement part 120 and scatters the maintenance material P by striking the maintenance material P moved by the stirring and moving part 120.

The arbor part 130 includes a body part 131 connected to the body part 110 and supporting the rotation shaft 121 and a body part 131 provided on the outer peripheral surface of the rotation shaft 121 and having an opening 112 And an impeller 136 for moving the repair material P discharged from the rotary shaft 121 in the radial direction of the rotary shaft 121.

The scattering body portion 131 is connected to the body portion 110 and supports the rotation shaft 121. The main body portion 131 is rotatably connected to the main body portion 110 at a predetermined distance from the main body portion 110. The main body portion 110 is rotatably connected to the main body portion 110, A vertical body 133 having one end coupled to the horizontal body 132 and the other end coupled to the body 110 and spaced apart from each other by a predetermined distance, .

The horizontal body 132 is rotatably connected to the rotary shaft 121. 2, the horizontal body 132 is disposed at a predetermined distance from the body 110 and has a length corresponding to the inner diameter of the body 110 or a length corresponding to the inner diameter of the body 110 So that the maintenance material P discharged from the opening portion 112 of the main body portion 110 is prevented from falling downward.

The vertical body 133 has one end coupled to the horizontal body 132 and the other end coupled to the body 110 to secure the horizontal body 132 to the body 110. The vertical bodies 133 of this embodiment are provided in a plurality of, and are arranged apart from each other by a predetermined interval.

The plurality of vertical bodies 133 of the present embodiment are disposed at equal angular intervals with respect to the center of the horizontal body 132.

The impeller 136 is provided on the outer circumferential surface of the rotary shaft 121 and moves the repair material P discharged from the opening 112 of the body 110 in the radial direction of the rotary shaft 121. The impeller 136 blows the maintenance material P discharged from the opening 112 of the main body 110 and sprays the maintenance material P between the vertical bodies 133.

2, the plurality of impellers 136 are arranged symmetrically with respect to the center of the horizontal body 132. The impellers 136 are arranged in a symmetrical manner with respect to the center of the horizontal body 132. [

Hereinafter, the operation of the inner wall wall maintenance apparatus for coke oven according to the present embodiment will be described with reference to FIG. 1 to FIG.

3, when the inner wall of the uprising pipe H of the coke oven is to be repaired, the operator opens the uprising pipe H and inserts the inner wall repair device for coke oven of the present embodiment into the uprising pipe H.

Thereafter, the rotary shaft 121 is rotated at a high speed to stir the maintenance material P through the rotation of the blade 122, and simultaneously move the maintenance material P toward the impeller 136.

At this time, in the present embodiment, along with the movement of the repair material P in the main body 110, the monolithic refractory material and the water constituting the repair material P are mixed again by the blade 122, ) Is improved.

The maintenance member P discharged to the opening 112 of the main body 110 and moved toward the impeller 136 is struck by the impeller 136 rotated together with the rotating shaft 121 to be opened B).

In the repair work using the coke oven inner wall repair apparatus according to the present embodiment, the operator uniformly disperses the repair material P on the inner wall of the uprising pipe H by a simple operation of moving the body portion 110 in the vertical direction, The site can be efficiently repaired.

In the present embodiment, the case of repairing the inner wall of the riser pipe H has been described. However, other parts of the coke oven, such as the entry opening, can be repaired by using the coke oven inner wall repair apparatus of this embodiment in the above- .

As described above, the inner wall repair apparatus for coke oven according to the present embodiment includes the stirring member 120 for stirring and moving the maintenance material P in the storage space 111, and the maintenance member 120 moved by the stirring / P to scatter the repair material P in a fine lump shape having a large surface area to volume ratio to increase the efficiency of attaching the repair part P to the repair part , Unnecessary waste of the repair material (P) can be prevented, and the repair material (P) falling down can be minimized.

Although the present invention has been described in detail with reference to the above drawings, the scope of the scope of the present invention is not limited to the above-described drawings and description.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

110: main body 111: storage space
112: opening portion 120: stirring /
121: rotating shaft 122: blade
130: pickling part 131: body part for scattering part
132: horizontal body 133: vertical body
136: Impeller B:
P: maintenance material H: rising pipe

Claims (10)

A main body in which a storage space for storing a maintenance material mixed with a monolithic refractory and water is formed inside;
An agitating / moving unit connected to the main body to stir and move the maintenance material in the storage space; And
And a scattering part connected to the agitating and moving part and scattering and scattering the maintenance material moved by the agitating and moving part,
Wherein the body portion is provided in a hollow pipe shape and has an opening at one end of the body portion communicating with the storage space to discharge the maintenance material. delete The method according to claim 1,
The stirring /
A rotating shaft passing through the storage space of the body portion and connected to the body portion so as to be relatively rotatable;
A blade provided on an outer circumferential surface of the rotary shaft for moving the maintenance material in a longitudinal direction of the rotary shaft; And
A rotation driving unit connected to the rotation shaft and rotating the rotation shaft;
Wherein the inner wall of the coke oven has an inner wall surface. The method of claim 3,
Wherein the blade extends spirally along a longitudinal direction of the rotary shaft. The method of claim 3,
Wherein the blade is provided in a part of the rotary shaft. 6. The method of claim 5,
Wherein the blade is disposed at one end region of the main body portion in which the opening is formed. The method of claim 3,
Wherein the dispersing unit comprises:
A body part for a scattering part connected to the body part and supporting the rotation shaft; And
An impeller which is provided on an outer circumferential surface of the rotary shaft and moves the repair material discharged from the opening of the body portion in a radial direction of the rotary shaft;
Wherein the inner wall of the coke oven has an inner wall surface. 8. The method of claim 7,
The body part for the scattering part,
A horizontal body rotatably connected to the rotation shaft and spaced apart from the main body by a predetermined distance and blocking the drop of the maintenance material discharged from the opening of the main body; And
A vertical body having one end coupled to the transverse body and the other end coupled to the body portion and spaced apart from each other by a predetermined interval;
Wherein the inner wall of the coke oven has an inner wall surface. 9. The method of claim 8,
Wherein the vertical body is disposed spaced at equal angular intervals with respect to a center of the horizontal body. 9. The method of claim 8,
Wherein the plurality of impellers are arranged symmetrically with respect to the center of the horizontal body.

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