KR101546241B1 - Unit for collecting released gas in coke oven and combustion system using the same - Google Patents

Abstract

A coke oven leak gas collection unit and a noxious gas combustion system using the same are disclosed.
The coke oven leak gas collection unit of the present invention comprises: a support member moving along a rail provided in a plane of the coke oven; A connecting line which is fixed to the support portion and has one end located in the coke oven door of the carbonization chamber and the other end connected to the carbonization chamber entrance; And an intake unit installed on the connection line so as to collect the gas leaking from the coke oven door and guide the gas to the inlet.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coke oven leak gas collecting unit and a noxious gas combustion system using the coke oven leak gas collecting unit.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coke oven leak gas collecting unit and a noxious gas burning system using the coke oven leak gas collecting unit. More particularly, the present invention relates to a coke oven leak gas collecting unit, Unit and a harmful gas combustion system using the same.

Generally, a coke oven comprises a heat storage chamber, a carbonization chamber, and a combustion chamber.

The upper part of the regenerative chamber is positioned as a carbonization chamber and a combustion chamber, and the coal charged in the carbonization chamber is coked for a certain period of time.

In the coke oven, coke oven is made up of a plurality of carbonization chambers repeatedly. The coke oven is composed of a plurality of carbonization chambers. When the coal is charged into the carbonization chamber in a high temperature state, The amount of gas generated in the bar fluctuates greatly depending on the duration of the gasification, that is, the elapsed time.

As described above, in the process of carburizing the charged coal, the heat of the combustion chamber is absorbed to carry out the carbonization.

In the early and mid-stage of carbonization, volatile substances contained in coal are converted into gases while absorbing a large amount of heat, resulting in diffusion phenomenon. As a result, a positive positive pressure (+) is applied to the interior of the carbonization chamber at the beginning of the carbonization, The negative pressure (-) is applied.

As shown in FIG. 1, after the coal charging, the initial carbonization chamber C is maintained at a high gas pressure state of several tens mmH ₂ O, so that if the coke oven door D is not completely sealed, leak.

Even if the coke oven door (D) is completely sealed, a sealing failure occurs between the coke oven door (D) and the door frame (F) when the number of operating seats is increased. As a result, So that it can not be avoided.

As described above, the emission of harmful gas is caused by the defective sealing of the carburizing chamber door of the coke oven carbide chamber. The problem of the sealing failure is caused by a decrease in the durability of the door frame due to an increase in the number of operating seasons, repeated shrinkage and expansion And the like.

As the hot air is dissipated from the wall of the furnace body due to the coke oven structure, the upward flow is generated from the lower side to the upper side, and the noxious gas is always concentrated and discharged to the door upper layer.

In order to prevent leakage of such harmful gas, a sealing agent is used to seal the worker. However, sealing work is not easy due to risk factors such as high temperature, high altitude and rainy weather. Even if sealing work is performed, There is a limitation that gas leakage can not be prevented.

Korean Unexamined Patent Publication No. 10-2002-0053951 (December 26, 2000) discloses a " scattered gas combustion system of a coke oven door ".

This is to prevent the generation of pollution by collecting harmful gas generated in the upper part of the door of the coke oven carbonization chamber in the course of coal coal and supplying it to the coke oven combustion chamber and discharging it to the atmosphere after complete combustion. , A collecting hood with a venturi tube lid line, a shut-off opening / closing electric valve, and a hood auto-sensing sensor are collectively used to collect leaking gas, and the collected gas is supplied to the combustion chamber to collect harmful substances And then discharging the gas to the atmosphere after the removal of the coke oven door.

However, such a 'scattered gas combustion system of the coke oven door' requires a plurality of collecting means for trapping scattered gas leaking from the coke oven door, and there is a disadvantage that the equipment structure is further complicated by supplying the collecting gas to the combustion chamber .

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as adhering to the prior art already known to those skilled in the art.

(Prior Art 1) Korean Patent Publication No. 10-2002-0053951 (December 26, 2000)

An object of the present invention is to provide a coke oven leak gas collecting unit for collecting and burning noxious gas leaking from a coke oven door using only a simple circulating equipment and a noxious gas burning system using the same.

In order to achieve the above object, according to the present invention, there is provided a coke oven leak gas collecting unit comprising: a support member moving along a rail provided on a plane of a coke oven; A connecting line which is fixed to the support portion and has one end located in the coke oven door of the carbonization chamber and the other end connected to the carbonization chamber entrance; And an intake unit installed on the connection line so as to collect the gas leaking from the coke oven door and guide the gas to the inlet.

Wherein the suction unit includes an intake fan rotatably installed in the connection line, and a drive motor for providing a rotational force to the intake fan, wherein the support includes: a support plate for supporting the connection line; A left frame and a right frame which are protruded downward and formed at a predetermined interval from each other and a left wheel and a right wheel rotatably coupled to the left frame and the right frame so as to run on the rail.

Wherein the connection line includes a suction line having one end positioned on the coke oven door and the other end positioned on the support plate, and a discharge line having one end connected to the suction line and the other end inserted into the inlet port, The suction line is characterized in that it is bendable and telescopably coupled in one direction with respect to the discharge line.

And the suction line and the discharge line are connected through a first corrugated pipe.

The discharge line includes a first discharge line, one end of which is connected to one end of the first bellows pipe, and a second discharge line, one end of which is inserted into the entry port, and the other end of the first discharge line and the second discharge And the other end of the line is connected via a second corrugated tube.

One end of the suction line is bent in the direction of the outer circumferential surface and further includes a control unit for controlling the rotational speed of the driving motor in accordance with the operation period and the gas generation amount of the carbonization chamber.

A first flange and a second flange are formed at one end of the suction line and one end of the first discharge line, and one side of the first flange and the second flange are connected to each other through a first piston cylinder And the other side of the first flange and the second flange is connected via a second piston cylinder.

And the upper and lower portions of the first flange and the second flange are connected to each other via a third piston cylinder and a fourth piston cylinder, respectively, about the first bellows tube.

The second piston cylinder, the third piston cylinder, and the fourth piston cylinder so as to adjust the angle of the suction pipe according to the operation time of the carbonization chamber and the gas generation amount do.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a harmful gas combustion system using a coke oven leak gas collecting unit, comprising: a coke oven; A rail disposed in the coke oven plane; A connecting line which is mounted on the supporting part and has one end thereof provided in the coke oven door of the carbonization chamber and the other end connected to the inlet of the carbonization chamber; A coke oven leaking gas collecting unit including an intake part installed on the connecting line so as to collect the coke oven leaking gas and guide the leaking gas to the inlet port; And a rising pipe for discharging the leaking gas supplied to the carbonization chamber and burned.

According to the present invention, the following technical effects can be obtained.

First, there is an advantage of minimizing the environmental pollution by minimizing the harmful gas emitted from the coke oven door to the atmosphere.

Second, there is an advantage that a worker can prevent a safety accident that is poisoned by harmful gas in advance.

Third, since the combustion source of the noxious gas is treated by using the carbon source self heat source without constructing a separate facility, the facility construction cost can be reduced and the energy efficiency can be improved.

Fourth, there is an advantage that the collection operation can be carried out organically according to the time of the gas leakage and the operation of the garbage to be leaked from the coke oven door.

Fifth, there is an advantage that the efficiency of the leak gas collection operation is improved by adopting the moving method instead of the fixed method.

1 is a view showing a state where gas is leaked from a conventional coke oven door,
2 shows a coke oven leak gas collection unit of the present invention,
3 is a view showing a noxious gas combustion system using the coke oven leakage gas collecting unit of the present invention,
4 is a view showing a mounting state of a first piston cylinder and a second piston cylinder that mediate a suction line and a discharge line of the present invention,
5 is a view showing a third piston cylinder and a fourth piston cylinder that mediate the suction line and the discharge line of the present invention.

Hereinafter, a coke oven leakage gas collecting unit and a noxious gas combustion system using the same according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

2 and 3, the coke oven leak gas collection unit 100 includes a support portion 110, a connection line 120, and an intake portion 130.

The support part 110 is for supporting and supporting the connection line 120 to be described later, and is movably installed on the upper surface of the coke oven.

A rail R is installed on the upper surface of the coke oven so that the support part 110 can move. Such a rail R is installed in a longitudinal direction along a guide rail installed on one side of the coke oven.

The connection line 120 is placed in the support 110 and one end of the connection line 120 is located in the coke oven door D of the carbonization chamber C and the other end of the connection line 120 is inserted into the inlet I of the carbonization chamber C .

The intake unit 130 is installed on the connection line 120 so as to collect the gas leaking from the coke oven door D and guide the gas to the inlet I of the coke oven.

The intake unit 130 preferably includes a drive motor 134 and an intake fan 132. The drive motor 134 is installed outside the connection line 120 and includes a rotary shaft of the drive motor 134, The intake fan 132 to which the shaft is connected is installed inside the connection line 120.

Accordingly, the suction force generated when the suction fan 132 rotates according to the operation of the driving motor 134 causes the noxious gas leaked from the coke oven door D to be drawn to one side of the connecting line 120 and discharged to the other side. The noxious gas introduced into the carbonization chamber (C) through the inlet (I) is burned by the heat source of the carbonization chamber (C).

A large number of entry openings I are provided on the coke oven.

Since the coke oven leaking gas collecting unit 100 is movably installed on the coke oven, it is possible to collect the gas leaking from the plurality of coke oven doors D by the single unit and to guide it to the inlet I of the coke oven.

The support portion 110 of the coke oven leak gas collection unit 100 preferably includes a support plate 112, a left frame 114, a right frame 116, a left wheel 114W and a right wheel 116W .

The support plate 112 supports the connection line 120.

It is preferable that a mounting opening S is provided on the support plate 112 so that the connection line 120 can be stably supported and mounted on the support plate 112.

The mounting hole S serves to prevent the connecting line 120 from slipping or coming off from the supporting plate 112 during a gas collection operation that leaks from the cork oven door D, The mount (S) to be installed can be designed in various structures.

For example, if a U-shaped groove is formed at the upper end of the loading port S and the connecting line 120 is inserted, it is possible to prevent the connecting line from being shaken during the trapping of the leaked gas.

The left frame 114 and the right frame 116, which are formed on the bottom surface of the support plate 112 and protrude vertically downward from the support plate 112, are spaced apart from each other by a predetermined distance.

The left wheel 114W and the right wheel 116W are rotatably coupled to the left frame 114 and the right frame 116 respectively. The left wheel 114W and the right wheel 116W are coupled to the rails R And the entire supporting portion 110 moves according to the movement of the left wheel 114W and the right wheel 116W so that the connecting line 120 can be moved at any time.

The connection line 120 preferably includes a suction line 122 and an exhaust line 124.

One end of the suction line 122 is located on the coke oven door D and the other end is located on the support plate 112. The discharge line 124 is connected at one end to the suction line 122, Is inserted and connected to the intestinal inlet (I).

As described above, when the connection line 120 is divided into two parts, it is required to replace only the damaged part when the connection line 120 needs to be replaced due to breakage. Therefore, the replacement cost can be reduced, .

Also, if the suction line 122 is unidirectionally bendable and telescopically coupled to the discharge line 124, it is possible to move while avoiding interference with the obstacle as much as possible when the support 110 is moved.

The suction line 122 and the discharge line 124 are preferably connected to each other through the first corrugated tube 140 to enable such an operation mechanism.

That is, due to the first corrugated pipe 140, the suction line 122 is elongated and telescoped with its distance away from the discharge line 124, and the suction line 122 is drawn by the left and right bending of the first corrugated pipe 140 122 are bent in one direction with respect to the discharge line 124.

The first corrugated pipe 140 is preferably made of a specific material so as to be able to maintain its state without shaking due to vibration or the like when the suction line 122 is rotated in one direction with respect to the discharge line 124. However, A separate fastening device may be provided around the fastening device 140 to maintain the fastened state.

The discharge line 124 includes a first discharge line 124a having one end connected to one end of the first bell pipe 140 and a second discharge line 124b having one end inserted into the inlet I, The other end of the first discharge line 124a and the other end of the second discharge line 124b are connected to each other through the second corrugated pipe 150.

By dividing the discharge line 124 into two and bendably forming it, it is possible to avoid interference with other obstacles when moving the apparatus, and it is possible to reduce the replacement cost even in the case where it is necessary to replace the parts due to the breakage, In repairing, there is an advantage that work is improved in convenience.

Meanwhile, in order to guide the noxious gas leaking from the coke oven door D to the suction line 122 as much as possible, one end of the suction line 122 is preferably curved in the direction of the outer peripheral surface to enlarge the inside diameter thereof.

Preferably, the coke oven leak gas collection unit 100 further includes a control unit 160.

The controller 160 adjusts the intensity of the suction force by adjusting the rotation speed of the driving motor 134 according to the time of the carbonization chamber C and the gas generation amount, thereby maximizing the collection efficiency.

Generally, in the carbonization chamber (C), since the gas generation amount is large at the beginning of the charging of coal, it is necessary to suck the gas leaked by the maximum suction force at this time.

The operator monitors the amount of gas generated from the coal and increases the number of rotations of the driving motor 134 through the control unit 160 when the amount of generated gas increases to maximize the gas collection leaked from the coke oven door D .

3, 4, and 5, the suction line 122 is disposed on the discharge line 122 so as to minimize interference with surrounding obstacles when the support 110 is moved, and to optimize the position of the suction line 122, A first flange 122a is formed at the other end of the suction line 122 and a first discharge line 124a is formed at the other end of the suction line 122 to enable such operation. The second flange 124a-1 is formed at one end of the second flange 124a.

The first flange 122a and the second flange 124a-1 are connected to each other via a first piston cylinder P1 and a second piston cylinder P2, P3 and a fourth piston cylinder P4.

The first piston cylinder P1 and the second piston cylinder P2 are located on both sides of the first bell pipe 140 and are located on both sides of the first flange 122a and the second flange 124a- And the stroke value is deformed according to the expansion and compression action, thereby enabling telescoping of the suction line 122 and bending operation in one direction.

That is, if the first piston cylinder P1 and the second piston cylinder P2 are inflated to the same stroke value, the suction line 122 is telescoped and when the other stroke value expands, the suction line 122 is moved to the left And bends in the rightward direction.

The third piston cylinder P3 and the fourth piston cylinder P4 are located in the upper and lower directions respectively with respect to the first bellows pipe 140 and the first flange 122a and the second flange 124a- And the stroke value is deformed according to the expansion and compression action, thereby enabling telescoping of the suction line 122 and bending operation in one direction.

That is, when the third piston cylinder P3 and the fourth piston cylinder P4 are expanded to the same stroke value, the suction line 122 is telescoped, and when the other piston stroke expands, the suction line 122 moves upward, Down direction.

The first piston cylinder P1, the second piston cylinder P2 and the third piston cylinder P3 and the fourth piston cylinder P4 are selectively mounted and relatively different stroke values are required for bending in a specific direction The control unit 160 adjusts the stroke value.

The noxious gas combustion system using the coke oven leak gas collection unit of the present invention comprises a coke oven door including a coke oven (R), a coke oven leak gas collection unit (100) and a riser pipe (200) The gas leaking from the dust chamber D is collected in the coke oven leaking gas collecting unit 100 and guided to the carbonizing chamber C through the inlet I and burned by the internal heat source in the carbonizing chamber C, And the combustion gas is discharged through the uprising pipe 200, so that the problem of environmental pollution due to the gas leakage can be solved.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: Coke oven leak gas collection unit
110: support part 112: support plate
114: left frame 114W: left wheel
116: right frame 116W: right wheel
120: connection line 122: suction line
122a: first flange 124: exhaust line
124a: first discharge line 124b: second discharge line
124a-1: second flange 130:
132: intake fan 134: drive motor
140: first corrugated tube 150: second corrugated tube
160: control part P1: first piston cylinder
P2: Second piston cylinder P3: Third piston cylinder
P4: Fourth piston cylinder R: Rail
D: Coke oven door C: Carbonization chamber
I: Entrance to entrance S: Entrance
200: riser

Claims (10)

A support moving along a rail provided in a plane of the coke oven;
A connecting line which is fixed to the support portion and has one end located in the coke oven door of the carbonization chamber and the other end connected to the carbonization chamber entrance; And
And an intake portion provided on the connection line so as to collect the gas leaking from the coke oven door and guide the gas to the inlet of the coke oven door.
The method according to claim 1,
Wherein the intake unit includes an intake fan rotatably installed in the connection line, and a drive motor for providing a rotational force to the intake fan,
The support portion includes a support plate for supporting the connection line, a left frame and a right frame protruding vertically downward from the bottom surface of the support plate and spaced apart from each other by a predetermined distance, And a left wheel and a right wheel rotatably coupled to the right frame, respectively, of the coke oven leak gas collection unit.

The method of claim 2,
Wherein the connection line includes a suction line having one end positioned on the coke oven door and the other end positioned on the support plate, and a discharge line having one end connected to the suction line and the other end inserted into the inlet port,
Characterized in that the suction line is bendably and telescopably coupled in one direction with respect to the discharge line.
The method of claim 3,
Characterized in that the suction line and the discharge line are connected via a first corrugated tube.
The method of claim 4,
Wherein the discharge line includes a first discharge line having one end connected to one end of the first bell pipe and a second discharge line having one end inserted into the bell mouth,
And the other end of the first discharge line and the other end of the second discharge line are connected via a second corrugated pipe.
The method of claim 4,
One end of the suction line is bent in the direction of the outer peripheral surface,
Further comprising a control unit for controlling the rotational speed of the drive motor in accordance with the time of the carbonization operation of the carbonization chamber and the gas generation amount.
The method of claim 4,
A first flange and a second flange are formed at one end of the suction line and one end of the first discharge line, and one side of the first flange and the second flange are connected to each other through a first piston cylinder And the other side of the first flange and the second flange is connected via a second piston cylinder.
The method of claim 7,
And the upper and lower portions of the first flange and the second flange are connected to each other via a third piston cylinder and a fourth piston cylinder, respectively, around the first bellows pipe.
The method of claim 7 or 8,
The second piston cylinder, the third piston cylinder, and the fourth piston cylinder so as to adjust the angle of the suction line according to the carbonization chamber operation time and the gas generation amount Coke oven leak gas collection unit.
Coke oven;
A rail disposed in the coke oven plane;
A connecting line which is mounted on the supporting part and whose one end is provided in the coke oven door of the carbonizing chamber and whose other end is connected to the inlet of the carbonizing chamber; A coke oven leaking gas collecting unit including an intake part provided on the connecting line so as to be able to collect and guide the inlet to the inlet;
And an uprising pipe for exhausting the leaking gas supplied to the carbonization chamber and burning the noxious gas.

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