KR20120075219A - Combustion controlling apparatus of cokes oven and method of the same - Google Patents
Combustion controlling apparatus of cokes oven and method of the same Download PDFInfo
- Publication number
- KR20120075219A KR20120075219A KR1020100137274A KR20100137274A KR20120075219A KR 20120075219 A KR20120075219 A KR 20120075219A KR 1020100137274 A KR1020100137274 A KR 1020100137274A KR 20100137274 A KR20100137274 A KR 20100137274A KR 20120075219 A KR20120075219 A KR 20120075219A
- Authority
- KR
- South Korea
- Prior art keywords
- gas
- supply
- fuel
- unit
- fuel gas
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/10—Regulating and controlling the combustion
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
Description
The present invention relates to a combustion control apparatus and a combustion control method of a coke oven for carbonizing coke.
Generally, a coke oven manufactures coke by distilling coal using blast furnace gas as a main fuel as a raw material supplied in a state such as coal.
The coke oven includes a fuel supply unit for supplying an appropriate amount of fuel gas, a sole flue for distributing and supplying a mixed gas supplied from the fuel supply unit, a heat storage chamber for preventing supply of pulsation of heat, and coal stored and burned. It may be divided into a carbonization chamber, a combustion chamber in which the gas passed through the carbonization chamber is burned, and a waste stool for discarding the gas passing therethrough.
The coke oven is provided with a plurality of furnaces, and combustion management is performed so as to alternately circulate a predetermined portion of the plurality of furnaces.
In one example, the coke oven allows the fuel to flow into one tank side for a predetermined time in a plurality of furnace bodies, and then burns the fuel, and then discharges the waste through the two tank sides. Then, when a predetermined time elapses, the circulation direction of the tank 1 side and the tank 2 side is changed through the reversing cock. Accordingly, after the fuel flows in through the tank 2 side and burns, the tank is discharged to the waste stool through the tank 1 side. do.
As described above, according to the combustion control method of the coke oven according to the related art, the circulation directions of the tank 1 side and the tank 2 side of the furnace are alternately burned.
However, in the related art, when the circulation direction of the furnace tank of the tank 2 and tank 1 is changed, for example, the pressure of the blast furnace gas, which is the main fuel gas, is greatly increased and then normally supplied or the pressure of the blast furnace gas normally supplied is momentarily decreased. Severe swinging (hunting) phenomenon occurs. As a result, the pressure of the blast furnace gas and the pressure of the distribution pipe are severely fluctuated in the related art, and in this process, the calorific value of the fuel gas detected in the calorie metaphor also fluctuates, resulting in unstable furnace temperature and incomplete combustion of the gas discharged through the waste stream. There is a fear that the smoke will be discharged together.
In addition, incombustible phenomena may occur due to instability of the waste gas discharged to the stack through the waste stool, resulting in a decrease in the amount of heat supplied to the carbonization chamber and incomplete coke dryness and loss of calories. Increasing the amount of calories consumed has led to increased manufacturing costs for coke drying.
In addition, the coke, which is incompletely dried in the above-described process, may be attached to the bucket in the process of moving through the bucket (bucket) for moving the coke, the operation delay due to the removal of the attached coke coal, etc. occurs. Doing.
In addition, if the fluctuation range of the supply pressure of the fuel is large, the fuel may not be normally supplied to the combustion chamber, thereby preventing the normal combustion, thereby reducing the quality and productivity of the coke, COG gas in the mixed gas used as fuel Is mixed in a large amount may result in non-combustion in the combustion chamber, or smoke containing NOx, Sox, etc. in the stack above the pressure of the waste gas may occur, and in the process of discharging the waste gas generated in the combustion chamber to the stack, a damper or An abnormality may occur in a flue valve and the like, and thus, smooth discharge of waste gas may be restricted. As such, when the waste gas is not smoothly discharged, the low temperature of the waste gas decreases, the amount of heat consumed increases, and the coking does not dry out, and contaminates the environment.
Therefore, in order to solve such a problem recently, the development of technology for smooth combustion management of the coke oven, but there is still room for improvement.
One embodiment of the present invention is to provide a combustion control device and a combustion control method of the coke oven to predict the pressure change of the blast furnace gas in advance to control the opening and closing of each pipe to reduce the fluctuation range of the pressure.
Combustion control apparatus of the coke oven according to an aspect of the present invention comprises a fuel supply unit for supplying fuel gas to the combustion chamber of the coke oven; A storage unit in which an operating processor of the coke oven is stored; And a controller configured to control a fuel gas supply of the fuel supply unit by predicting a supply pressure of the fuel gas according to an operating processor stored in the storage unit.
Here, the fuel supply unit is provided with a coke gas supply unit for storing and supplying the coke gas generated during the drying of the coke gas, a blast furnace gas supply unit for storing and supplying blast furnace gas generated from the blast furnace, and a supply amount installed in the coke gas supply unit and blast furnace gas supply unit, respectively A measuring unit, a comparing unit comparing the measured supply amount of the coke gas and the measured supply amount of the blast furnace gas measured with each supply amount measuring unit with the set supply amount, and comparing the measured supply amount and the set supply amount compared by the comparing unit with the coke gas supply unit And it may include an output adjustment unit for adjusting the supply amount of the blast furnace gas supply unit.
In addition, the control unit may control to open the fuel supply unit a predetermined time before the start time of supply of fuel gas according to the operating processor of the coke oven.
In addition, the control unit may control to close the fuel supply unit a predetermined time before the supply stop time of the fuel gas according to the operating processor of the coke oven.
According to another aspect of the present invention, there is provided a method for controlling combustion of a coke oven, the method comprising: supplying fuel gas to a combustion chamber; Predicting a supply pressure of the fuel gas supplied to the combustion chamber in advance; And adjusting the supply amount of the fuel gas according to the predicted supply pressure of the fuel gas.
In addition, the step of adjusting the supply amount of fuel gas may include opening the supply pipe a predetermined time before the opening time of the set supply pipe of the fuel gas.
In addition, the step of adjusting the supply amount of fuel gas may include closing the supply pipe before a predetermined time before the closing time of the supply pipe of the fuel gas set.
In addition, supplying fuel gas may include directly supplying and mixing coke oven gas to a supply pipe of blast furnace gas supplied to the combustion chamber.
According to one embodiment of the present invention, it is possible to optimize the combustion management by predicting the fluctuation of the pressure of the coke oven in advance, it is possible to prevent the hunting phenomenon that the pressure fluctuates significantly. Therefore, the present embodiment can minimize thermal fluctuations to prevent waste of calories, improve the quality of coke, prevent environmental pollution as well as prevent operation delays, thereby increasing productivity. have.
1 is a configuration diagram of a coke oven according to an embodiment of the present invention.
Figure 2 is a block diagram showing a fuel supply pipe of the coke oven according to an embodiment of the present invention.
3 is a flow chart showing a combustion control method of the coke oven according to an embodiment of the present invention.
Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shape and the size of the elements in the drawings may be exaggerated for clarity and the same elements are denoted by the same reference numerals in the drawings.
1 is a configuration diagram of a coke oven according to an embodiment of the present invention.
Referring to FIG. 1, the coke oven 100 has a fuel supply unit 110 for supplying fuel gas at one side thereof, and a sole flue for distributing and supplying fuel supplied from the fuel supply unit 110 at a lower portion thereof. 120 is disposed. In addition, the heat storage chamber 130 may be installed on the upper portion of the brush pool 120 to prevent pulsation of heat. In addition, the upper portion of the heat storage chamber 130, the carbon is stored in the carbonization chamber 140, where the carbon is carbonized, the combustion chamber 150 where the gas passed through the carbonization chamber 140 is burned, and a waste stool for disposing the gas passing through them ( 155 may be installed.
The coke oven 100 is a mixture of blast furnace gas (BFG) and coke gas (COG) in the fuel supply unit 110 to produce a mixed gas, the mixed gas is pressure in the distribution pipe 112 and the pressure valve 114 After this adjustment, it may be supplied to the brush pool 120 via an orifice for adjusting the flow rate of the entire combustion chamber 150 via the reversing cock 116. Then, the mixed gas is supplied from the heat storage chamber 130 to the combustion chamber 150 through the nozzle plate for adjusting the flow rate of each individual combustion chamber gas from the brush pool 120, and burns the heat generated in this process to the carbonization chamber 140. Coal is delivered through the coal to dry the coke, waste gas generated in the combustion chamber 150 may be discharged to the stack through the waste stool 155 to be discharged to the atmosphere.
In addition, the coke oven 100 has a rising pipe 142 for discharging the COG gas generated in the carbonization chamber 140, and a gas collection pipe connected to the rising pipe 142 to collect the COF gas generated during the dry distillation of coal ( 144 may be provided.
On the other hand, the coal charged in the carbonization chamber 140 is carbonized by being dried for a predetermined time from the combustion chamber 150 on both sides with the furnace wall interposed therebetween. The coke production process in the coke oven 100 may be repeatedly loaded with coal, dry distillation and coke discharge.
The combustion chamber 150 of the coke oven 100 may include a plurality of furnaces, and combustion management is performed such that a predetermined portion of the plurality of furnaces alternately circulates.
In one example, the coke oven 100 is a plurality of furnaces for a predetermined time in the fuel flows into the tank 1 side, after the combustion to be discharged to the waste through the tank 2 sides. Then, when a predetermined time elapses, the circulation direction of the tank 1 side and the tank 2 side is changed through the reversing cock. Accordingly, after the fuel flows in through the tank 2 side and burns, the tank is discharged to the waste stool through the tank 1 side. do.
That is, the mixed gas being used as fuel in the present embodiment comprises a blast furnace gas (BFG gas) is supplied at a pressure of 300mmH 2 O, the coke oven gas to the supply pipe with the pressure of 500mmH 2 O of the blast furnace gas (COG Gas) can be mixed into an appropriate amount of mixed gas (Mix gas), and then supplied to the coke oven combustion chamber 150 at a pressure of about 80 to 100 mmH 2 O in a distribution pipe to be used as a heat source for producing coke. .
This mixed gas is supplied to and combusted in one tank side (1, 3, 5 ...) furnace body and two tank side (2, 4, 6 ...) furnaces every 20 minutes through the reversing cock which is a gas exchange facility in a furnace structure.
As an example, in the combustion control method of this embodiment, the mixed gas is supplied to one tank side (1, 3, 5, ...) furnace for 20 minutes, and heat is applied, and the tank side (2, 4, 6) is again applied for 20 minutes. …) Furnace gas is supplied and heat is applied.
At this time, waste gas generated in each furnace may be discharged to the stack through the waste stool 115.
On the other hand, in the present embodiment, when one of the tank 1 side or the tank 2 side enters the reversing to close the flow path of the gas, the pressure may increase rapidly as the discharge of the gas is blocked. In addition, when the flow path of the gas on the other side of the tank 1 side or the tank 2 side is opened, the pressure inside the gas inside the moment through the open passage can be dropped rapidly.
Therefore, in the present embodiment, it is possible to predict in advance how the pressure of the blast furnace gas BFG will change in the pressure control process, and control the opening and closing of each flow path in advance according to this process to reduce the hunting of the pressure.
To this end, the combustion control apparatus of the present embodiment may include a storage unit in which the operating processor of the coke oven 100 is stored, and a control unit controlling the supply of fuel gas according to the operating processor of the coke oven 100 stored in the storage unit. It may include.
In the storage unit, the proper supply pressure and supply time of the fuel gas according to the operating processor are stored in advance, and the control unit predicts the supply pressure of the fuel gas according to the operating processor stored in the storage unit in advance, and thus the fuel gas of the fuel supply unit 110. Supply can be controlled.
That is, in the combustion control method of the coke oven 100 according to the present embodiment, when one of the tank 1 side or the tank 2 side enters the reversing operation, the passage of the gas is opened for a predetermined time with the gas passage closed about 1/3. Stay in one state.
When the predetermined time elapses, the flow path is closed to stop the discharge of the gas.
On the other hand, when the flow path is opened by reversing on the other side of the tank 1 side or the tank 2 side, the process opens about 1/3 of the time before opening the flow path and keeps the flow path open for a predetermined time.
On the other hand, when a phenomenon in which the pressure of the mixed gas is largely hunted, that is, when the pressure measurement value of the mixed gas is hunted largely, each of the gas supplied from the COG
To this end, as illustrated in FIG. 2, the fuel gas supply unit 110 includes supply
In addition, the fuel gas supply unit 110 is provided with a
In addition, the COG gas and the BFG gas compare the supply values measured by the supply
Therefore, the present embodiment can immediately control the output value of the mixed gas by adjusting the supply amount of the COG gas and the BFG gas supplied to the fuel supply pipe.
That is, when one of the tank 1 or the
As described above, in the combustion control method of the coke oven 100 according to the present embodiment, after the fuel gas is supplied to the one-ch or two-
At this time, the roche of each set can be reversed at a predetermined time interval, the processor can predict the change in the supply pressure of the fuel gas supplied to the furnace according to the processor, according to the predicted supply pressure of the fuel gas It has a step of adjusting the supply amount of blast furnace gas (see S11).
For example, the fuel may be supplied and combusted to the one-
The adjusting of the supply amount of the fuel gas may partially limit the supply of the fuel gas a predetermined time before the supply time of the fuel gas supplied to the one-
In addition, the step of adjusting the supply amount of the fuel gas may close the supply pipe a predetermined time before the closing time of the set supply pipe of the fuel gas.
As described above, in the present embodiment, the one-
On the other hand, in the combustion control method of the present embodiment, when the reversing operation is performed, the supply pipe of the one tank side body is completely closed, and the fuel supply pipe of the two tank side body is completely opened (see S14, S15).
In this way, the combustion circulation direction of the tank 1 side tank and the tank 2 side body can be switched by the reversing operation (see S16).
In the present embodiment, the reversing operation of the one-
In addition, in the present embodiment, the supply pipe connected to the one-
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 appended claims and their equivalents. It will be clear to those who have knowledge.
100: coke oven 110: fuel supply unit
112: distribution pipe 114: pressure valve
116: reversing cock 120: brush
130: heat storage chamber 140: carbonization chamber
142: riser 144: gas collection tube
150: combustion chamber 155: waste stool
Claims (8)
A storage unit in which an operating processor of the coke oven is stored; And
A control unit for predicting a supply pressure of the fuel gas according to an operating processor stored in the storage unit and controlling a fuel gas supply of the fuel supply unit;
Combustion control device of the coke oven comprising a.
The fuel supply unit is a coke gas supply unit for storing and supplying the coke gas generated when the coke gas is dried,
Blast furnace gas supply unit for storing and supplying blast furnace gas generated from the blast furnace,
A supply amount measuring unit respectively installed in the coke gas supply unit and the blast furnace gas supply unit;
A comparison unit comparing the supply amount of coke gas and the measured supply amount of blast furnace gas measured with each supply amount measurement unit with a set supply amount;
And an output adjusting unit for adjusting the supply amount of the coke gas supply unit and the blast furnace gas supply unit by comparing the measured supply amount and the set supply amount compared by the comparison unit.
And the control unit controls to open the fuel supply unit a predetermined time before a start time of fuel gas supply according to the operating processor of the coke oven.
And the control unit controls to close the fuel supply unit a predetermined time before a supply stop time of the fuel gas according to the operating processor of the coke oven.
Supplying fuel gas to the combustion chamber;
Predicting a supply pressure of the fuel gas supplied to the combustion chamber in advance; And
Adjusting the supply amount of the fuel gas according to a predicted supply pressure of the fuel gas;
Combustion control method of the coke oven comprising a.
And adjusting the supply amount of the fuel gas comprises opening the supply pipe a predetermined time before a set opening time of the supply pipe of the fuel gas.
And adjusting the supply amount of the fuel gas comprises closing the supply pipe before the set time of closing the supply pipe of the fuel gas.
The step of supplying the fuel gas combustion control method of the coke oven, characterized in that the step of directly supplying and mixing the coke oven gas to the supply pipe of the blast furnace gas supplied to the combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100137274A KR20120075219A (en) | 2010-12-28 | 2010-12-28 | Combustion controlling apparatus of cokes oven and method of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100137274A KR20120075219A (en) | 2010-12-28 | 2010-12-28 | Combustion controlling apparatus of cokes oven and method of the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20120075219A true KR20120075219A (en) | 2012-07-06 |
Family
ID=46709238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020100137274A KR20120075219A (en) | 2010-12-28 | 2010-12-28 | Combustion controlling apparatus of cokes oven and method of the same |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20120075219A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101435065B1 (en) * | 2013-03-28 | 2014-08-29 | 현대제철 주식회사 | Transfer device and method of gas |
| KR20160076052A (en) | 2014-12-22 | 2016-06-30 | 주식회사 포스코 | Method and apparatus for combustion control in coke oven |
| KR20160146329A (en) | 2015-06-12 | 2016-12-21 | 주식회사 포스코 | Apparatus for supplying burning gas and Method for controlling calorific value of burning gas |
-
2010
- 2010-12-28 KR KR1020100137274A patent/KR20120075219A/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101435065B1 (en) * | 2013-03-28 | 2014-08-29 | 현대제철 주식회사 | Transfer device and method of gas |
| KR20160076052A (en) | 2014-12-22 | 2016-06-30 | 주식회사 포스코 | Method and apparatus for combustion control in coke oven |
| KR20160146329A (en) | 2015-06-12 | 2016-12-21 | 주식회사 포스코 | Apparatus for supplying burning gas and Method for controlling calorific value of burning gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK1698827T3 (en) | Method of combustion of fuels, in particular waste | |
| RU2697555C2 (en) | Improved combustion profiles for coke production | |
| RU2420557C2 (en) | Coke furnace with optimised control and control method | |
| CN101784860B (en) | Method for optimising the control of a centre for the treatment of fumes from a rotary furnace for baking carbon blocks | |
| BR112017014428B1 (en) | Method for optimizing the operation of a coke plant and coke oven | |
| RU2527929C2 (en) | Method of controlling oven for anode baking and oven adapted for implementing this method | |
| KR20120075219A (en) | Combustion controlling apparatus of cokes oven and method of the same | |
| US6339729B1 (en) | Process and regulation device for ring furnaces | |
| KR100971258B1 (en) | Apparatus for supplying gas into a combustion chamber of coke oven | |
| KR20140011214A (en) | Flow control apparatus and the method thereof | |
| JP5782982B2 (en) | Coke oven combustion management method and flow distribution control device | |
| US8607717B2 (en) | Batch waste gasification process | |
| CN214571689U (en) | Combined adjustable rich gas heating coke oven | |
| JP2015157896A (en) | Operation method of coke oven | |
| KR100954199B1 (en) | Device for adjusting temperature of coke oven | |
| KR20240035123A (en) | Combustion Operation Apparatus of Hot Blast Stove and Method thereof | |
| JP2006348063A (en) | Method for controlling combustion of coke oven | |
| KR101245317B1 (en) | Device for controlling temperature of combustion chamber for coke oven | |
| KR101277840B1 (en) | Cokes oven | |
| CN112538360B (en) | Combined adjustable gas-rich heating coke oven | |
| CN104583367A (en) | Coke oven temperature control device and coke oven temperature control method | |
| KR101259185B1 (en) | Combustionchamber in a coke oven having coke oven gas induction route | |
| JP2010180371A (en) | Method for controlling gas amount of coke oven combustion chamber, and method for manufacturing coke | |
| JP2008088289A (en) | Method for controlling combustion of coke oven | |
| KR100321045B1 (en) | Apparatus and method for controlling calorific value of coke oven gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |