KR20140033638A - Sharing apparatus of fume duct and control method thereof - Google Patents

Abstract

The present invention relates to: a fume duct sharing apparatus for improving dust collecting efficiency using a fume duct damper selectively dividing or connecting a fume duct to the longitudinal direction of a cokes oven; and a control method of a dust collector for the cokes oven using the same. The fume duct sharing apparatus comprises the following: multiple transfer cars collecting dust and dirty gas; the fume duct connected to the transfer cars to move the transfer cars, for transferring the dust and dirty gas; the fume duct damper installed inside the fume duct for dividing the fume duct into a first region and a second region, and selectively connecting and blocking the first and second regions; two ECSs (emission control system) connected to the first and second regions of the fume duct divided by the fume duct damper, respectively, for processing the dust and dirty gas; and a control unit connected to the transfer cars, the fume duct damper, and the ECSs for controlling the transfer cars, the fume duct damper, and the ECSs. [Reference numerals] (410) First ECS; (420) Second ECS

Description

TECHNICAL FIELD [0001] The present invention relates to a fume duct sharing apparatus and a method for automatically controlling a coke oven dust collector using the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fume duct in which dust and grease generated during extrusion of coke are transferred, and more particularly, to a fume duct which selectively divides or communicates a fume duct in the longitudinal direction of the coke oven. And a method of controlling the coke oven dust collector using the same.

Generally, Cokes, a subsidiary material to be used when producing molten iron in a blast furnace, is a type of coal charcoal used as a unit for securing air permeability in a blast furnace as well as a role of a heat source and a reducing agent, and is produced in a coke oven.

FIG. 1 is a schematic view showing a general coke oven operation process. As shown in FIG. 1, in a coke producing process, coal having cohesiveness is introduced into four entry openings in a hearth of a coke oven using a charging car, And then indirectly heated at a temperature of 1,300 degrees Celsius with the coke oven being closed to carry out the carbonization for about 18 hours. The finished glow coke (C) is pushed out of the coke oven by the pusher car.

At this time, the red coke (C) led to the transfer car from the opposite side of the coke oven is loaded on a bucket of a moving car (Quenching Car) and transferred to the next process C.D.Q. (Coke Dry Quenching). Then, the coke (C) is discharged and the carbonization chamber re-charges coal into the empty coke oven.

During the process of producing coal as a red coke (C), a large amount of coke oven gas (COG) is generated due to the action of the coal charged in the carbonization chamber of the coke oven and the combustion gas supplied from the outside, As shown in FIG. 1, the coke oven gas flows through the upper space where the coal (C) is deposited in the inner space of the carbonization chamber formed in the coke oven, passes through the riser pipe, It is sent to other facilities, for example, Mars facilities. The flow of the coke oven gas is continuous for 24 hours, and the gas sent to the chemical plant is used as fuel for the steelworks through the refineries.

(C) A large amount of coke oven gas (COG) discharged during extrusion is transferred to two ECS (EMISSION CONTROL SYSTEM) through a fume duct (FUME DUCT) connected to the dust collecting hood of the transfer car. do.

In this case, it is impossible to treat coke oven gas (COG) by using other ECS when abnormality occurs in one ECS by installing a blind plate in the central part of the existing fume duct. In case of simultaneous extrusion in a plurality of carbonization chambers, , It was impossible to increase the treatment efficiency.

In addition, it is difficult to treat ECS abnormality or COG when a large amount of coke oven gas (COG) is generated.

In the conventional fume duct, a spark baffle plate is provided to separate foreign matter, which deteriorates the life and performance of the dust collector, through the spark baffle plate of the transfer pipe and then discharged through the collecting and discharge hopper and the hopper gate. The apparatus for preventing the occurrence of the problem of the dust collector, thereby preventing the stoppage of the production facility and improving the service life of the facility is disclosed in, for example, "Fume duct dust collecting and automatic discharging apparatus of the dust collector (Patent Document 10-2001-0060702)" Are specifically known. However, when the ECS connected to the fume duct had a problem, the coke oven gas (COG) generated during the extrusion of the coke could not be treated.

Also, the problem of releasing a large amount of coke oven gas (COG), which is generated when the extrusion operation is performed simultaneously in one or more carbonization chambers, to the atmosphere due to the inability to treat it.

[Patent Document 1] Japanese Patent Application Laid-Open No. 10-2001-0060702 (July 7, 2001)

In the present invention, a fume duct damper is installed in the fume duct to selectively communicate or block the fume duct to selectively share the fume duct according to the amount of the coke oven gas (COG) generated during the extrusion, To provide a fume duct sharing apparatus that efficiently processes coke oven gas (COG).

It also provides a fume duct sharing device that can process coke oven gas (COG) using the other ECS in the event of a problem with one of the two ECSs.

The fume duct sharing apparatus according to an embodiment of the present invention is a fume duct in which dust and grease gas generated during extrusion of coke in a coke oven having a plurality of carbonization chambers are moved. The fume duct includes a plurality of transfers Car; A fume duct connected to the transfer car so as to be movable, the dust and the dust gas moving; A fume duct damper installed in the fume duct to divide the fume duct into a first region and a second region, the fume duct damper selectively communicating or blocking the first region and the second region; Two ECS (EMISSION CONTROL SYSTEM) which are respectively connected to the first region and the second region of the fume duct defined by the fume duct damper and process the dust and impregnated gas; And a control unit connected to the transfer car, the fume duct damper, and the ECS to control the transfer car, the fume duct damper, and the ECS.

The fume duct damper is formed in a shape corresponding to the cross section of the fume duct and the fume duct is installed in the first region and the second region in the longitudinal direction of the coke oven.

The control unit is characterized in that for controlling the fume duct damper to selectively open and close in response to the extrusion signal and ECS abnormal signal from the coke oven.

Coke oven dust collector control method according to an embodiment of the present invention comprises an extrusion signal detection step for receiving an extrusion signal including the extrusion position and extrusion time information in the coke oven; A signal processing step of receiving the extrusion signal and controlling the fume duct damper in accordance with the extrusion signal; And a dust collection step according to the signal processing step.

When there is one extrusion signal in the signal processing step, the damper is closed to partition the fume duct.

When there are a plurality of extrusion signals in the signal processing step, it characterized in that it further comprises opening the damper to communicate the fume duct.

The fume duct is divided into a first region and a second region by the damper, and includes two ECSs installed in the first region and the second region, respectively, and the signal processing step is performed according to the extrusion signal. It is characterized by selectively operating the ECS.

And opening the damper to cause the first region and the second region to communicate with each other when the abnormality occurs in the ECS selected in the signal processing step, and operating the ECS not selected.

According to the embodiment of the present invention, the fume duct damper that divides the inside of the fume duct into the first region and the second region is installed, thereby selectively blocking the fume duct, thereby blocking the fume duct when one carbonaceous room is extruded, It is possible to efficiently operate a large amount of coke oven gas (COG) generated by operating only the ECS and communicating the fume duct during simultaneous extrusion of two or more carbonization chambers and simultaneously operating the two ECSs.

In addition, productivity of the equipment can be improved by reducing the generation of resting of the facility by treating the generated coke oven gas (COG) by communicating the fume duct in one of the two ECSs and operating the other ECS.

1 is a schematic view showing a coke oven operation process,
FIG. 2 is a view showing an installation state of a fume duct sharing apparatus according to an embodiment of the present invention,
3 is a view for explaining the operation of the fume duct damper according to the embodiment of the present invention,
FIG. 4 is a schematic diagram showing the configuration of an ECS according to an embodiment of the present invention,
5 is a flowchart illustrating a process of controlling a coke oven dust collector including a fume duct sharing apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred 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. For reference, the same numbers in this description refer to substantially the same elements and can be described with reference to the contents described in the other drawings under these rules, and the contents which are judged to be obvious to the person skilled in the art or repeated can be omitted.

FIG. 2 is a view showing an installation state of a fume duct sharing apparatus according to an embodiment of the present invention. FIG. 3 is a view for explaining operation of a fume duct damper according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing the configuration of an ECS according to an embodiment of the present invention; FIG.

As shown in the drawings, the fume duct sharing apparatus 10 according to an embodiment of the present invention includes a plurality of transfer cars 100 for collecting dust generated during extrusion of a coke C in a carbonization chamber 20, ; A fume duct 200 through which dust and sediment collected in the transfer car 100 move; The fume duct damper 200 selectively divides the fume duct 200 into a first region 210 and a second region 220 and selectively connects or disconnects the first region 210 and the second region 220 (300); Two ECS (EMISSION CONTROL SYSTEM) 400 connected to the first region 210 and the second region 220, respectively, which are divided by the fume duct damper 300; And a control unit connected to the transfer car 100, the fume duct damper 300 and the ECS 400 to control the transfer car 100, the fume duct damper 300 and the ECS 400. [ Lt; / RTI >

The upper portion of the fume duct 200 is opened so that the fume hood installed on the transfer car 100 is movably connected to the fume duct 200. The upper portion of the fume duct 200 is opened by the sealing belt 201, And is sealed.

The fume duct damper 300 is installed to divide the inside of the fume duct 200 into the first region 210 and the second region 220 in the longitudinal direction of the fume duct 200, The fume duct 200 is selectively opened or closed. The fume duct damper 300 is preferably installed in the center of the fume duct 200 in the longitudinal direction of the coke oven 1 where a plurality of carbonation chambers 20 are arranged. This is because the efficiency of the coke oven gas (COG) process can be increased by using the ECS 400 installed in the first region 210 and the second region 220, respectively.

It is preferable that the fume duct damper 300 is formed in the shape of a round cut-out portion corresponding to the end face of the fume duct 200 on which the sealing belt 201 is installed. Accordingly, the fume duct 200 can be selectively blocked or communicated with the inner circumferential surface of the fume duct 200 and the end surface of the fume duct 200 formed by the sealing belt 201.

In this case, the fume duct damper 300 may be a butterfly damper, a gate damper, or the like, and the fume duct damper 300 may be a damper type damper shown in the above- Various types of dampers which can selectively block the fume duct 200 by dividing the fume duct 200 without affecting the movement of the transfer car 100 may be selectively applied .

The ECS 400 is an exhaust gas treatment system having a main fan 401, a bag filter 402, a DUST SILO 403, and the like. When the coke oven 1 is extruded, (Coke oven) gas (COG) collected in the transfer car 100 is purified and discharged.

At this time, the ECS 400 is installed with the first ECS 410 and the second ECS 420 in the first region 210 and the second region 220, in which the fume duct 200 is formed. At this time, it is preferable that the first region 210 and the second region 220 are disposed at the center in the longitudinal direction. This is because when the fume duct damper 300 is closed and the fume duct 200 is divided into the first region 210 and the second region 220 and the coke oven 200 flows through the transfer car 100 during operation, This is because the distance by which the COG is moved on the fume duct 200 can be shortened and the processing efficiency of the ECS 400 can be increased.

The control unit includes a communication unit for transmitting and receiving operating information of the coke oven 1, the transfer car 100, the fume duct damper 300, and the ECS 400; The fume duct damper 300 and the ECS 400 are operated according to operating information of the coke oven 1 collected through the communication unit, PLC (PROGRAMMABLE LOGIC CONTROLLER) which consists of INTERLOCK; And an HMI (HUMAN MACHINE INTERFACE) which is connected to the PLC to monitor the operation state and automatically control the transfer car 100, the fume duct damper 300 and the ECS 400.

Preferably, the communication unit is wirelessly configured to enable automatic unattended operation. This is because, by removing the cable, interference of the cable is prevented, mobility of the transfer car 100 and the like is improved, and installation and relocation are easy.

It is preferable that the PLC has an interlock so as to prevent mis-extrusion, collision, etc. in order to prevent accidental operation. This is because it is possible to smoothly operate the equipment by monitoring and controlling it to prevent accidents during unmanned automation. The interlock formed between the cork oven 1 and the transfer car 100 and the ECC 400 for smoothly collecting the coke oven gas COG and the interlock between the coke oven 1 and the transfer car 100, And an interlock for preventing an interlock between the fume duct damper 300 and the transfer cars 100. In addition to the interlocks listed above, interlocks for preventing various operations incidents that may occur in an unmanned automated operation are optional .

The HMI can monitor the current operation state and each facility, and is configured to enable remote control in an emergency.

The control method of the coke oven dust collecting apparatus including the fume duct sharing apparatus 10 according to an embodiment of the present invention will now be described with reference to the drawings.

5 is a flowchart illustrating a process of controlling the coke oven dust collector including the fume duct sharing apparatus 10 according to an embodiment of the present invention.

An extrusion signal detecting step of receiving an extrusion signal including an extrusion position and an extrusion timing of the coke oven 1; A signal processing step of determining the number of the extrusion signals and selectively opening and closing the fume duct damper 300 to thereby communicate or block the fume duct 200; And a dust collection step according to the signal processing step.

At this time, in the coke oven 1 having the plurality of carbonization chambers 20, the extrusion signal transmits one extrusion signal for each carbonization chamber 20. When the co-extrusion is performed in one or more carbonation chambers 20, a plurality of extrusion signals equal to the number of the carbonation chambers 20 to be extruded are transmitted.

The fume duct damper 300 is opened to communicate with the first region 210 and the second region 220 so that the fume duct damper 300 is closed. It is defined that the inside is divided into the first region 210 and the second region 220.

The signal processing step may include a step of determining the number of the extruded signals and dividing the fume duct 200 by closing the fume duct damper 300 when the number of the extruded signals is one, And opening the damper (300) to communicate the fume duct (200).

If the number of the extrusion signals is plural according to the extrusion signal, the signal processing step may include connecting the fume duct 200 to the first region 210 and the second region 220, respectively, The first ECS 410 and the second ECS 420 are operated to process the coke oven gas COG released during the extrusion and when the extrusion signal is one, The ECS 400 adjacent to the extrusion position is selected and operated so that the coke oven gas (COG) released upon extrusion can be effectively treated.

If the number of the extrusion signals is one, the ECS 400 adjacent to the extrusion position can be processed by estimating the amount of the generated coke oven gas (COG) It is possible to efficiently process the generated coke oven gas (COG).

The fume duct 200 is opened by opening the fume duct damper 300 when an abnormality occurs in a predetermined ECS () adjacent to the extrusion position in the signal processing step, and the ECS 400 not operated is operated, And treating the coke oven gas (COG). Thus, it is possible to prevent the operation stop due to the problem of the ECS 400.

A control method of the coke oven dust collecting apparatus including the fume duct sharing apparatus 10 will be described in order.

The coke oven 1 receives the extrusion signal including the extrusion position and the extrusion timing information to determine the number of extrusion signals. When the number of the extrusion signals is two or more, the fume duct 200 is opened by opening the fume duct damper 300, and two of the first ECS 410 and the second ECS 420, When the extrusion signal is 1, the fume duct damper 300 is closed so that the fume duct 200 is divided into the first region 210 and the second region 220, And the ECS 400 adjacent to the extrusion position is selected and operated.

At this time, it is determined whether or not the selected ECS 400 is normally operated. When the selected ECS 400 is abnormally generated, the fume duct damper 300 is opened to communicate the fume duct 200, The non-selection ECS 400 is operated to process the coke oven gas (COG) generated upon extrusion.

After the operation of the ECS 400 is confirmed, the coke C is extruded from the coke oven 1, and when the extrusion is completed, the operation of the ECS 400 is stopped and extrusion is completed.

Although the present invention has been described with reference to the preferred embodiments thereof, 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 and scope of the invention as defined in the following claims. It can be understood that

1: Coke oven 10: Fume duct sharing device
20: carbonization chamber 30: extrusion vehicle
100: Transfer car 200: Hume duct
201: sealing belt 210: first region
220: second region 300: fume duct damper
400: ECS 401: Main Fan
402: bag filter 403: DUST SILO
410: first ECS 420: second ECS

Claims (8)

There is provided a fume duct in which dust and grease generated during extrusion of a coke in a coke oven having a plurality of carbonization chambers are moved,
A plurality of transfer cars for collecting dust and smoldering gas;
A fume duct connected to the transfer car so as to be movable, the dust and the dust gas moving;
A fume duct damper installed inside the fume duct to partition the fume duct into a first region and a second region, and selectively communicating or blocking the first region and the second region;
Two ECS (EMISSION CONTROL SYSTEM) which are respectively connected to the first region and the second region of the fume duct defined by the fume duct damper and process the dust and impregnated gas; And
And a control unit connected to the transfer car, the fume duct damper, and the ECS to control the transfer car, the fume duct damper, and the ECS.
The method according to claim 1,
Wherein the fume duct damper is formed in a shape corresponding to an end face of the fume duct and is installed so that the fume duct is divided into the first region and the second region in the longitudinal direction of the coke oven. Device.
The method according to claim 1,
The control unit is a fume duct sharing device, characterized in that for controlling the opening and closing of the fume duct damper selectively in accordance with the extrusion signal and ECS abnormal signal from the coke oven.
A control method of a coke oven dust collector including a fume duct in which a duster and a dust-containing gas generated during extrusion of a coke oven are moved, and a damper is selectively installed to communicate or partition an interior thereof.
An extrusion signal detecting step of receiving an extrusion signal including extrusion position and extrusion timing information in the coke oven;
A signal processing step of receiving the extrusion signal and controlling the fume duct damper in accordance with the extrusion signal; And
And a dust collecting step of collecting dust in accordance with the signal processing step.
The method of claim 4,
And, in the signal processing step, when the extrusion signal is one, the damper is closed to partition the fume duct.
The method of claim 4,
And a plurality of extrusion signals in the signal processing step, further comprising opening the damper to communicate the fume duct.
The method of claim 4,
Wherein the fume duct is divided into a first region and a second region by the damper and includes two ECSs respectively installed in the first region and the second region,
The signal processing step of controlling the coke oven dust collector, characterized in that for selectively operating the ECS in accordance with the extrusion signal.
The method of claim 7,
Further comprising the step of opening the damper to cause the first region and the second region to communicate with each other when the abnormality occurs in the ECS selected in the signal processing step and to operate the ECS not selected, Device control method.

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