KR100961347B1 - An apparatus for monitoring the dry distillation and adjusting the combustion of coke in coke oven - Google Patents

Abstract

Provided is a coke dry state detection and combustion control device for detecting the dry state of the coke in the coke process and adjusting the combustion of the oven combustion chamber based on the coke process.

The dry state detection and combustion control device of the coke, the base connected to one side of the charging vehicle ascending pipe, the moving link is moved back and forth to the drive means from the upper portion is made of a multi-stage and the front end is inserted into the rising pipe, and the movement A carbon monoxide which is connected to a moving trolley connected to support the movement of the link and a gas collection pipe fixed to the movable link and inserted into an ascending tube and provided on a base to measure a carbon monoxide concentration of the ascending exhaust gas to detect a red coke state; Coke detector consisting of a detector; And a carbonization chamber combustion adjusting unit having a damper provided inside the air distribution pipe connected to the carbonization chamber combustion chamber, and an operating arm connected to the shaft of the damper to drive the seesaw through a driving means. Are configured to interlock with each other via a control unit.

According to the present invention, it is possible to maintain the optimum combustion chamber temperature with the optimal heat amount to produce the coke (COAL) in the coke oven COCO (COKE OVEN) to prevent pollution and optimum due to the minimum heat consumption In addition to providing the coke quality of the, as well as the operation management suitable for high utilization rate can be improved effect to improve the process efficiency.

Coke, coke oven, coke glowing, oven gas, carbonization chamber, carbonization furnace

Description

AN APPARATUS FOR MONITORING THE DRY DISTILLATION AND ADJUSTING THE COMBUSTION OF COKE IN COKE OVEN}             

1 is a schematic diagram showing the dry state detection and combustion adjustment operation through the measurement of carbon monoxide concentration in the conventional coke oven

Figure 2 is an overall configuration showing a dry state detection and combustion control device of the coke according to the present invention

3 is a detailed view of the device of the present inventors;

Figure 4 is an exploded perspective view showing the coke dry state detection unit of the present inventors device

5 is an exploded perspective view showing a combustion control unit of the present invention device;

Figure 6 (a) and (b) is a perspective view showing the operating state of the coke dry state detection unit of the present invention device

Figure 7 (a) and (b) is an operating state diagram showing the operating state of the combustion control unit of the present invention device

Explanation of symbols on the main parts of the drawings

1. Coke dry state detection and combustion control device

10 .... Red coke detector 12 .... Base                 

14 .... Driving means (cylinders) 16 .... Moving link

18 .... trolley 20 .... gas collection pipe

22 .... Carbon Monoxide Meter 50 .... Carbonization Chamber Combustion Control

52 .... Damper 54 .... Damper Shaft

56 .... Drive 58 .... Operating arm

62 .... float 64 ... oil tank

70,72 ... Control valve 74,76 .... Oil pipe

80 .. Display means 120 .... Air distribution pipe on the oven combustion chamber side

142 .... riser C .... control unit

The present invention relates to a dry state detection and combustion control device of the coke for detecting the dry state of the coke is dry carbonized in the carbonization chamber of the coke during the coke process of the steel mill and adjusts the air supply for the combustion of the combustion chamber, More specifically, by measuring the carbon monoxide (hereinafter referred to as 'CO') concentration of the gas discharged from the oven carbonization chamber to detect the dry state of the coke, and by adjusting the amount of air supplied to the carbonization combustion chamber by adjusting the combustion , COAL can be carbonized in a coke oven to produce the coke to maintain the optimum combustion chamber temperature with the optimal calorie value, providing pollution prevention and optimum coke quality due to the minimum calorie consumption. Of course, it is possible to detect the dry state of coke and improve the process efficiency by enabling operation management suitable for high utilization rate. It relates to a small adjustment.

In the coke process where the coal is reddened and carbonized in the steelmaking process, the carbonization chamber of the COKE OVEN is always kept at a constant temperature, for example, 1200-1300 ° C. and a recognized time, for example, 18, in order to produce optimum coke. Coal is carbonized for -20 hours, and the dried red coke can be extruded from a carbonization chamber of a coke oven using a moving vehicle, for example, an extruder, to complete the production of coke through the coke process.

Therefore, the most important thing in the coal distillation using the coke oven is the combustion management of the carbonization chamber to keep the temperature of the carbonization chamber constant. Such continuous management of the carbonization chamber optimizes the quality of the coke and improves the yield. In order to increase, it is carried out in response to various factors, for example, the weather, the utilization rate, the moisture contained in the coal, the degree of coal charging in the coal.

However, continuous management of the oven carbonization chamber in the coke process has to take into account both the quality aspects of the coke and the process control aspects of the coke process. The combustion of the oven carbonization chamber was managed based on the data collected through experiments on the condition.

However, such data requires a considerable amount of time because it is necessary to accumulate the experimental data over a long period of time trial and error, and if you focus on the quality of such coke, coke production management has a difficult problem on the contrary.

Therefore, in the prior art, the operation of adjusting the combustion of the coke oven in consideration of the quality and production of such coke at the same time is shown in FIG.

That is, as shown in FIG. 1, the combustion management of the combustion chamber in the lower part of the conventional oven carbonization chamber is the air distribution pipe 120 of the air inlet side arrange | positioned under the carbonization chamber 110 of the coke oven 100. Orifice (130) installed in the inside of the carbonized chamber by replacing the orifice (130) to supply more air to the combustion chamber 122 that is poor in combustion, compared to the hot temperature prepared by several The degree of combustion was adjusted.

However, in the conventional combustion adjustment method of the combustion chamber 122 of the oven carbonization chamber 110 through the replacement of the orifice 130, the operator has to replace the orifice 130 in the air distribution pipe 120 manually. In other words, the operation is cumbersome and the working time is delayed, which lowers the utilization rate of the carbonization chamber itself.

In addition, the orifices 130 having various inner diameters for adjusting the air supply amount should be prepared in advance, but only the orifices actually prepared have limitations in properly adjusting the air supply, which makes it difficult to adjust the combustion chamber optimally. .

On the other hand, Figure 1 schematically shows the operation of measuring the state of the red coke, the conventional red coke state detection operation, by opening the need 142a of the riser pipe 142 installed in the charging vehicle 140, This is connected to the measuring unit 150 for measuring the CO concentration and inserting the collection pipe 160 for collecting a portion of the coke oven gas discharged, and detects the red state of the coke coke through the measuring unit 150, Table 1 below shows the correlation of the CO concentration according to the redness state for each coke oven carbonization chamber.

Table showing the relationship between CO concentration and coke distillation combustion chamber # 6 # 7 # 11 # 12 # 16 # 17 # 21 # 22
Medium temperature
(℃)
1259
1254
1277
1263
1255
1246
1263
1256
cokes
Dry state
Good
Good
Undried
Good
CO concentration
(PPM)
100
65
250
85 combustion chamber # 26 # 27 # 31 # 32 # 36 # 37 # 41 # 42
Medium temperature
(℃)
1276
1281
1273
1274
1278
1261
1264
1262
cokes
Dry state
Fruits
Good
Good
Good
CO concentration
(PPM)
40
65
65
80

That is, as shown in Table 1, the better the dry state of coke, the lower the value of CO concentration.

Therefore, as shown in FIG. 1 and Table 1, when the CO concentration is high through the measuring unit 150, the combustion of the carbonization chamber is not made properly, and the dry state of the coke is judged to be poor, and the operator determines the orifice of the air distribution pipe 120. (130) It is to replace the larger inner diameter to increase the air supply to adjust the combustion.                         

As a result, in the related art, CO concentration is measured and thus, the state of the coke is determined, and the operation of replacing the orifice 130 of the air distribution pipe 120 with a proper one is mostly not performed by manual labor. In addition to delaying the work, the replacement of the orifice is cumbersome, the air supply is interrupted during this time, and even if the state of the red coke is detected as the CO concentration, the operator needs to raise the collecting pipe 150. Since the process of opening 142a is delayed, there are various problems such as delayed work, causing worker safety accidents.

In addition, since approximately 66 carbonization chambers are arranged in one coke oven, it is impossible for an operator to manually determine the state of the effective coke coke and control combustion.

The present invention has been made in order to improve the various problems as described above, the object of the present invention is to measure the CO concentration for determining the state of the coke coke carbonized in the carbonization chamber of the coke oven and the air distribution pipe connected to the combustion chamber based on the same By adjusting the air supply to the furnace automatically without the manual operation of the operator, it is to provide a coke dry state detection and combustion control device to prevent the safety accident of the operator while the operation is performed quickly.

In addition, another object of the present invention, it is possible to quickly detect the state of the coke coke to adjust the air supply amount of the air distribution pipe immediately based on this, while maintaining the operation of the coke oven to the maximum, the coke process can be performed optimally coke It is to provide a coke dry state detection and combustion control device that further improves the productivity of the process and the quality of the coke product.

The present invention as a technical configuration for achieving the above object, the base is connected to the charging vehicle side to one side of the riser, and moved in the front and rear by the drive means in the upper portion is made of a multi-stage movement of the tip is inserted into the riser A link, a moving trolley connected to support the movement of the moving link, and a gas collection pipe fixed to the moving link and inserted into a rising pipe and provided on a base to measure a CO concentration of the rising pipe discharge gas and measure a red coke. A glowing coke detector comprising a CO detector for detecting a state; And

A combustion chamber combustion adjusting unit having a damper installed inside the air distribution pipe connected to the carbonization chamber combustion chamber, and an operating arm connected to the shaft of the damper to drive the seesaw through a driving means;

Including,

The CO sensor and the driving means is characterized in that configured to interlock with each other via a control unit.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.                     

Figure 2 is an overall configuration showing the dry state detection and combustion control device of the coke according to the present invention, Figure 3 is a detailed view showing the device of the present invention, Figure 4 shows the coke dry state detection unit of the present invention device 5 is an exploded perspective view showing the combustion control unit of the present invention device, Figure 6 (a) and (b) is a perspective view showing the operating state of the coke dry state detection unit of the present invention device, 7 (a) and 7 (b) are operating state diagrams showing an operating state of the combustion adjusting unit of the apparatus of the present invention, hereinafter, the same components as in the prior art related to the coke oven are indicated by the same reference numerals.

2 and 3 show the overall configuration of the dry state detection and combustion control device 1 of the coke according to the present invention. Such a device 1 of the present invention is largely a red coke detector 50 and carbonization. While being configured as the actual combustion control unit 50, these components are interlocked through the control unit C, respectively, and these components 10 and 50 will be described in more detail as follows.

First, FIGS. 2 to 4 illustrate the red coke detector 50 of the apparatus 1 of the present invention. The red coke detector 50 of the present invention will be described in detail. The base 12 connected to the charging vehicle 140 to one side of the rising pipe 142 of the moving link 16 is moved back and forth from the upper portion to the driving means 14 is made of a multi-stage and the front end is inserted into the rising pipe (16) And a moving trolley 18 connected to support the movement of the movable link 16 and a gas collection tube 20 fixed to the movable link 16 and inserted into an ascending tube and on the base 12. It is provided is composed of a CO concentration measuring instrument 22 for measuring the CO concentration of the riser exhaust gas to detect the state of the coke coke.                     

At this time, the moving link 16 of the red coke detecting unit 10 is connected to the moving body 24 and the moving means 24 of the cylinder drive means 14 installed on the base 12, and the moving body 24 The first and second links 26 and 28 are provided, and the second link 28 is pivoted with a pin 28a at the tip of the trolley 18, as shown in FIGS. 3 and 4. 32)

3 and 4, the movable body 24 includes a guide roll 24a inserted into and supported by the guide groove 18a of the trolley 18, and the cylinder of the driving means 14 is provided. The rod is connected to the movable body 24 via the spring 30 through the connecting block 19 of the trolley 18 in which the movable body 24 is located inward, and the base 18 is connected to the trolley 18. A moving wheel 18b moving along is provided.

On the other hand, the base 12 is provided with a cover body 34 for guiding the movement of the moving link 16 and the bogie 18 and covering them, and a stopper 36 for blocking the bogie movement at the tip of the base 12. And a guide roll 38 for supporting the movement of the moving link 16.

On the other hand, both sides of the trolley 18 and the moving body 24 to increase the friction when in close contact with each other to move the trolley 18 together when the moving body 24 moves, so that only the moving body 24 moves when the movement of the trolley is blocked. It is preferable that the knurling surfaces 17 are integrally formed.

Accordingly, as shown in FIGS. 3 to 6, when the operation of the glowing coke detector 10 is observed, when the driving cylinder, which is the driving means 14 on the base 12, moves forward, the driving means 14 is moved. The trolley 18 provided with the wheels 18b together with the movable link moving body 24 connected to the cylinder rod of the same advances with the frictional force by the knurling surface 17 described above.

At this time, when the front wheel is supported by the stopper 36 on the base 12 in front of the cover body 34 and the movement is blocked, the movable body 24 of the movable link 16 is moved by the trolley 18. The first and second links 26 and 28 of the movable link 16 are bent forward by the wheels 24a supported by the guide grooves 18a. (26) (28) is bent in a letter.

Therefore, as shown in FIGS. 3 and 6, when the need 142a of the rising pipe 142 is opened and the cylinder of the driving means 14 is advanced through the control unit C, the cylinder moves as shown in FIG. 6A. When the link 16 moves forward with the trolley 18 and the guide roll 38 is supported, and only the moving link moves forward while the trolley movement is stopped, the second link 28 moves vertically to the rising pipe 142. In this case, the gas introduced through the gas collection pipe 20 fixed to the mobile link 16 is measured by the CO concentration meter 22, and the concentration of CO in the gas is measured in the control unit C. It is delivered as a signal.

As a result, according to the glowing coke detection unit 10 in the apparatus 1 of the present invention, the gas collecting pipe 20 is automatically inserted into the lift pipe 142 together with the movable link 16 without the operator's manual labor. By measuring the CO concentration of the gas correlated with the coke dry state, it is possible to quickly detect the state of the coke coke, the correlation between the CO concentration and the dry state is as described in Table 1.

Next, when the cylinder of the driving means 14 moves backward, the moving link 16 firstly moves back, and then moves the moving body 24 backward by the side wheels 24a of the moving body 24 and returns to the initial position. 16 is again in the form of a date to wait for the next work, the collection is connected to the CO concentration meter 22 installed on the base 12 for the movement of the moving link 16 and the bogie 18 as described above It is preferable that the pipe 20 uses a flexible hose.

Next, FIGS. 3, 5, and 7 show the carbonization chamber combustion control unit 50 of the apparatus of the present invention. The combustion chamber combustion control unit 50 of the present invention is air connected to the carbonization combustion chamber 122. And a damper 52 provided inside the distribution pipe 120 and an actuating arm 58 connected to the shaft 54 of the damper 52 through a driving means 56 for driving the seesaw. The CO concentration measuring unit 22 and the driving unit 56 of the glowing coke detector 10 interlock with each other through the control unit C.

In this case, the driving means 56 of the carbonization chamber combustion adjusting unit 50 will be described in detail, and an oil tank connected to an inner float 62 through a connection arm 60 connected to one end of the operation arm 58 passes through. 64) and control valves 70 and 72 electrically connected to the oil storage tanks 66 and 68 and electrically connected to the control unit C for supply and drain of oil to the oil tank 64. And oil supply and drain pipes 74 and 76 with one another.

In addition, the oil tank 64 and the operating arm 58 is connected to the display means 80 for displaying a damper angle, such display means 80, the other end of the operating arm 58, the operating rod ( A first display tube 86 for displaying the level of oil in response to the rod operation to the cylinder 84 to which the cylinder 82 is connected, and a second display tube 88 for displaying the level of oil in connection with the oil tank 64; It consists of.

At this time, between the oil storage tank 66, 68 is provided with a circulation pipe 67 having a pump (P), the pump (P) for supplying the oil tank of the oil is also disposed in the oil supply pipe (74) have.

Therefore, referring to the operation of the carbonization chamber combustion adjusting unit 50 of the present invention, as shown in FIGS. 3 and 6, the CO concentration measuring unit 22 of the red coke detecting unit 10 is a rising pipe 142. When measuring the CO concentration contained in the gas passing through the) and sent to the control unit (C), the control unit (C), as shown in Table 1, if it is higher than the preset reference CO concentration according to the dry state of the glowing coke, the control unit (C ) Opens the control valve 72 of the oil supply pipe 74 to send oil from the oil storage tank 66 to the oil tank 64 as a pump, and the float 62 is raised while the connecting arm 60 is When the damper 52 is integrally rotated while the operation arm 58 is rotated counterclockwise about the damper shaft 54, the amount of air supplied through the air distribution pipe 120 is increased by increasing the damper 52 opening amount. Is increased.

As a result, when the coke is unstable and the CO concentration is high, the amount of opening of the damper 52 is adjusted as shown in FIG. 7 to increase the combustion temperature of the carbonization chamber 122, thereby increasing the coal distillation temperature to increase coal. It is to effectively carry out dry distillation.

That is, when the measured CO concentration is 150 ppm or more, the damper 52 increases in the amount of opening of the damper 52 due to the rise of the float 62 according to the oil supplied by the operation of the driving means 56.

On the contrary, when the opening amount of the damper 52 is reduced, the valve 70 of the oil supply pipe 74 is closed. On the contrary, the control valve 72 of the oil drain pipe 76 is opened while the oil in the oil tank is drained and floated. 62 is lowered, and in this case, the opening amount of the damper 52 is reduced integrally with the operation arm 58.

At this time, the oil of the cylinder 84 when the operating rod 82 connected to the other end of the operating arm 58 is raised or lowered, the level is displayed on the first display tube 86 of the display means 80, Since the oil level state of the oil tank 64 is displayed on the second display tube 88 connected thereto, it is possible to grasp from the outside whether the opening operation of the damper 52 is in progress and the opening degree thereof.

As described above, according to the present invention of the coke dry state detection and combustion control device, the CO concentration measurement for detecting the state of the red coke stored in the carbonization chamber of the coke oven and the air supply to the air distribution pipe based on the adjustment By performing it automatically without manual work, the work is performed quickly and provides an excellent effect of preventing the safety accident of the worker in advance.

In addition, it is possible to quickly detect the condition of the red coke and adjust the air supply amount of the air distribution pipe immediately based on it, so that the coke process can be optimally performed while maintaining the maximum operation of the coke oven. There is another effect of further improving the quality.

While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be varied and modified without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims (6)

A base 12 connected to one side of the charging vehicle lift pipe 142, a moving link 16 that is moved back and forth to the driving means 14 from the upper portion thereof, and has a multi-stage end portion inserted into the lift pipe; A moving trolley 18 connected to support the movement of the link 16 and a gas collecting tube 20 fixed to the moving link 16 and inserted into the rising tube and provided on the base 12 so as to be provided on the base 12. A glowing coke detector (10) consisting of a CO concentration measuring device (22) for measuring the CO concentration of the exhaust gas and detecting the coke state; And A working arm connected to the damper 52 provided inside the air distribution pipe 120 connected to the carbonization chamber combustion chamber 122, and to the shaft 54 of the damper 52 through a driving means 56. A combustion chamber combustion adjustment unit 50 including 58; Including, Drying state detection and combustion control device of the coke, characterized in that the CO concentration measuring instrument 22 and the driving means 56 is configured to interlock with each other through the control unit (C). According to claim 1, wherein the moving link 16 of the coke detecting unit 10 is a movable body 24 connected to the drive means 14 of the cylinder installed on the base 12, and the movable body 24 Drying state detection and combustion control device of the coke, characterized in that consisting of the first and second links (26, 28) connected to The movable body 24 of the movable link 16 has a guide roll 24a inserted into and supported by the guide groove 18a of the trolley 18. The cylinder rod of the drive means 14 is connected to the movable body 24 via the spring 30 through the connecting block 19 of the bogie 18 in which the movable body 24 is located inwardly, The second link 28 is pivoted 32 at the tip of the bogie, Drying state detection and combustion control device of the coke, characterized in that the trolley 18 is provided with a moving wheel 18b moving along the base 12 A cover body (34) according to any one of the preceding claims, wherein a cover (34) is provided on the base (12) to guide and cover the movement of the movable link (16) and the bogie (18), Drying state detection and combustion control apparatus of the coke is characterized in that the tip portion of the base 12 is provided with a stopper 36 to block the movement of the trolley and a guide roll 38 for supporting the movement of the moving link 16. The oil tank of claim 1, wherein the drive means 56 of the carbonization chamber combustion control unit 50 passes through a connection arm 60 connected to one end of the operation arm 58, and is connected to an inner float 62. 64 and control valves 70 and 72 electrically connected to the oil storage tanks 66 and 68 and electrically connected to the control unit C for supply and drain of oil to the oil tank 64. Oil supply and drain pipes (74) (76) Drying state detection and combustion control device of the coke, characterized in that the oil tank 64 and the operating arm 58 is connected to the display means 80 for displaying a damper angle 6. The first display tube (86) according to claim 5, wherein said display means (80) displays a level of oil in accordance with a rod operation on a cylinder (84) to which an actuating rod (82) is connected at the other end of said actuating arm (58). And a second display tube 88 connected to the oil tank 64 to display the level of oil, wherein the dry state detection and combustion control apparatus of the coke is characterized by the above-mentioned.

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