KR100642781B1 - Device and method of delivering gas of coke oven - Google Patents

Abstract

An equipment and a method for pressurizing and transferring gas in a coke oven are provided to prevent gas from flowing out to the outside by forcibly transferring gas to be released into the atmosphere during charging of soft coal into a carbonization chamber of the coke oven into the carbonization chamber again. In an equipment for pressurizing and transferring gas in a coke oven, which prevents gas from being exhausted between drop sleeves(21a-21d) of a charging car(20) and a frame of a charging door(15) of a carbonization chamber(10), the equipment comprises: gas suction pipes(30a-30d) of which lower ends are installed within the drop sleeves, and which are vertically arranged with being parallel to one another; a transfer pipe(50) of which an intermediate portion is connected to upper ends of the gas suction pipes; a pressurization means(70) installed at one end of the transfer pipe to pressurize gas into the transfer pipe; a protection valve installed at the other end of the transfer pipe; and a transfer pipe(90) for transferring gas passing through the pressurization means into the carbonization chamber.

Description

DEVICE AND METHOD OF DELIVERING GAS OF COKE OVEN}

1 is a schematic view showing the entirety of a conventional coke oven.

2 is a schematic cross-sectional view showing a charging operation of a conventional coke oven.

Figure 3 is a schematic diagram showing a gas indentation transfer apparatus of the coke oven according to the present invention.

Figure 4 is a schematic diagram showing a gas indentation transfer process of the coke oven according to the present invention.

Figure 5 is a schematic diagram showing a protective valve of the gas indentation transfer apparatus according to the present invention.

10: carbonization chamber 15: charging slot

20: charging car 21a, 21b, 21c, 21d: drop sleeve

30a, 30b, 30c, 30d: suction pipe 35a, 35b, 35c, 35d: shutoff valve

50: conveying pipe 60: protective valve

61 cylinder 62 cylinder shaft

63, 64: link connection 65: lever for touch

66: valve opening and closing portion 67: the lifter

68: communication tube 70: indentation means

72: blower fan 74: motor

90: transfer tube 95: U-shaped tube

The present invention relates to a gas indentation transfer device and method of the coke oven, using a press-fit device installed inside the drop sleeve to the gas generated between the drop sleeve and the charging inlet frame during charging the coke in the coke oven The present invention relates to a coke oven gas injection-feeding apparatus and method for forcibly transferring the carbonization chamber.

In general, coke oven is a fuel distillation apparatus used to manufacture coke, a subsidiary material injected into a blast furnace. After coking coal, the coal is heated in a carbonization chamber heated to more than 1300 degrees, the inside space of coke oven, Coke is then produced.

Based on the accompanying drawings will be described for the coke oven according to the prior art.

1 is a schematic view showing the entirety of a conventional coke oven. 2 is a schematic cross-sectional view showing a charging operation of a conventional coke oven.

Referring to the drawings, the conventional coke oven has a drop sleeve (21a ~ 21d) is connected between the charging car 20 and the carbonization chamber 10 and charging the bituminous coal in the charging car 20 into the carbonization chamber 10. Include.

The gas is discharged when the bituminous coal is charged from the charging car 20 into the carbonization chamber 10, and the bituminous coal is charged over three times to smoothly charge the bituminous coal. That is, first the second drop rib 21b and the third drop rib 21c are operated to charge bituminous coal, and then the first drop rib 21a and the fourth drop rib 21d are operated, and again the second drop rib 21b is operated. The rib 21b and the second drop rib 21c are operated to complete charging.

When the bituminous coal is charged in the charging vehicle 20, the carbonization chamber 20 at the time of charging through the second drop rib 21 b and the third drop rib 21 c as the pressure increases instantaneously in the carbonization chamber 10. From the first drop rib 21a and the fourth drop rib 21d and the frame of the charging opening 15 of the carbonization chamber 20, a large amount of unrefined gas flows out.

On the contrary, when the coal is charged through the first drop rib 21a and the fourth drop rib 21d, the second drop rib 21b and the third drop rib 21c and the carbonization chamber 20 from the carbonization chamber 20 are charged. A large amount of unrefined gas flows out between frames of the charging slot 15 of the.

As such, when the gas generated during the coke generation is released into the atmosphere, the pollution of the facility is accelerated due to deterioration as well as environmental pollution, thereby increasing the cost of facility management and causing a problem of human accidents caused by the gas.

Therefore, the present invention has been made to solve the above-mentioned problems with the conventional coke oven, the object of the present invention is to force the gas discharged into the atmosphere when the carbon is charged into the carbonization chamber when the coal is charged into the carbonization chamber of the coke oven of the gas It is to provide a coke oven gas indentation transfer apparatus and method for preventing an external leakage.

The present invention for achieving the above object is provided in a plurality of suction pipes, the lower end is provided in each of the drop sleeve of the charging vehicle, the suction pipe for connecting the upper end of the suction pipe, and the one end of the transport pipe And a pressurizing means for pressurizing the gas, and a conveying tube for transferring the gas passing through the pressurizing means to the carbonization chamber.

Each of the suction pipes includes a shutoff valve that closes the suction pipe when charging bituminous coal through a drop sleeve, and opens the suction pipe when not charging the gas to suck gas.

The other end of the conveying pipe includes a protective valve for opening the other end of the conveying pipe when all of the shutoff valves are closed, and closing the other end of the conveying pipe when charging is started and a part of the shutoff valve is opened.

The press-fit means includes a blowing fan and a motor for driving the blowing fan.

In addition, in the method of charging the coal briquettes into the charging opening of the carbonization chamber through a plurality of drop sleeves installed in the charging vehicle, a part of them are opened while the others are closed while the others are closed while the drop sleeves are all closed. And a second step of charging the bituminous coal through the first step of charging the bituminous coal through the closing of the part of the drop sleeves and opening the remaining drop sleeves. The suction pipes are alternately performed, and suction pipes respectively connected to the transfer pipes for sucking gas are provided in the drop sleeves to close the suction pipes when the drop sleeves are opened in the first and second steps, and to open the suction pipes when the drop sleeves are closed. Sucking the gas generated between the drop sleeve and the carbonization chamber charging chamber, And transferring the sucked gas to the carbonization chamber.

When the suction pipes are all closed, the transport pipe is vented to the outside, and when the suction pipe is partially opened, the transport pipe is blocked.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

Figure 3 is a schematic diagram showing a gas press-in transfer apparatus of the coke oven according to the present invention, Figure 4 is a schematic diagram showing a gas press-in transfer process of the coke oven according to the present invention, Figure 5 is a gas press-in transfer according to the present invention A schematic diagram showing a protective valve of the device.

The gas indentation transfer apparatus of the coke oven according to the present invention which prevents gas from being discharged between the drop sleeves 21a to 21d of the charging vehicle 20 and the frame of the charging opening 15 of the carbonization chamber 10 is the drop sleeve 21a. 21 d) gas intake pipes 30a to 30d arranged at the lower end and arranged in parallel to each other, and an upper end of the gas intake pipes 30a to 30d connected to a middle portion of the pipe 50 for transport, and Gas passing through the press-fitting water stage 70 provided at one end of the pipe 50 to press-fit gas, the protection valve 60 provided at the other end of the transfer pipe 50, and the press-in means 70. It includes a transfer pipe 90 provided to be transferred to the carbonization chamber (10).

The upper end of the suction pipe (30a ~ 30d) is connected to the transfer pipe 50 and the lower end is located outside the charging hole 15 of the carbonization chamber 10 in the drop sleeve (21a ~ 21d) drop sleeve (21a ~) The gas generated between the frame 21d) and the charging port 15 is sucked and transferred to the conveying pipe 50. In addition, the suction pipes 30a to 30d close the suction pipes 30a to 30d when charging the bituminous coal through the drop sleeves 21a to 21d, and open the suction pipes 30a to 30d when the bituminous coal is not charged. Shut off valves 35a to 35d are respectively included.

If the press-fit means 70 is driven while all the shut-off valves 35a to 35d are closed, the pressure may be lowered between the cut-off valves 35a to 35d and the press-fit means 70 of the gas press-fit transfer apparatus to damage the apparatus. have. The protective valve 60 is a means for preventing this. That is, before the shutoff valves 35a to 35d operate, the protection valve 60 is opened to allow external air to enter the transfer pipe 50. On the other hand, when the charging valves are started through the drop sleeves 21b and 21c and the shut-off valves 35a and 35d on the side of the drop sleeves 21a and 21d which are not operated are opened, the protective valve 60 is closed so that the gas suction is more smoothly performed. do.

To this end, the protective valve 60 is in communication with the conveying pipe 50 and upwardly extending the communication tube 68, and the valve opening and closing portion rotatably installed on the upper end of the communication tube 68 to open and close the communication tube 68 ( 66, a cylinder 61 for operating the valve opening and closing portion 66, a cylinder shaft 62 moving forward and backward by the cylinder 61, and between the cylinder shaft 62 and the valve opening and closing portion 66. And a lever 65 integrally formed on the rotation shaft of the valve opening / closing portion 66. The lever 65 transmits the opening / closing information of the protection valve 60 to the lifter 67.

The press-fit means 70 includes a centrifugal axial blower fan 72 provided between the conveying pipe 50 and the conveying pipe 90, and a motor 74 for driving the same. At this time, the blowing fan 72 is provided so that the gas is transferred to the transfer pipe 90 from the side of the transfer pipe 50 connected to the suction pipe 30 by the rotation.

The transfer pipe 90 includes a U-shaped tube 95 provided at the other end to send gas to another carbonization chamber, and the gas collected through the blowing fan 72 to the U-shaped tube 95 is adjacent to the carbonization chamber. It is sent back to (10).

Hereinafter will be described the operation of the gas press injection device of the coke oven according to the present invention configured as described above.

The gas press-in feeder is installed in the charging vehicle 20, and the drop sleeves 21a, 21b, 21c, 21d of the charging vehicle 20 come into close contact with the charging inlet 15, and the cylinder 61 of the protection valve 60 is provided. Is activated and the cylinder shaft 62 is advanced. Accordingly, the protective valve 60 is opened by the operation of the valve connecting portions 62 and 63 so that the conveying pipe 50 is vented to the outside.

When the protective valve 60 is opened, the touch lever 65 may operate the redirector 67 to check the opening and closing of the protective valve 60 in the charging vehicle 20. When the opening of the protection valve 60 is confirmed, the second drop sleeve 21b and the third drop sleeve 21c of the charging vehicle 20 are operated to start charging. At the same time as charging, the motor 74 is operated to operate the blower fan 72, and the first shutoff valve 35a and the second shutoff valve 35d are opened to open the first and fourth drop sleeves 21a and 21d. The gas generated to the side is sucked into the suction pipes 30a and 30d. At this time, the protection valve 60 closes one end of the transfer pipe 50 so that the gas is better sucked into the suction pipes 30a and 30d. When the first drop sleeve 21a and the fourth drop sleeve 21d are operated to start charging, the second shutoff valve 35b and the third shutoff valve 35c are opened, and the second and third drop sleeves 21b are opened. , Gas generated toward 21c) is sucked into the suction pipes 30b and 30c.

For reference, FIG. 4 shows that the second drop sleeve 21b and the third drop sleeve 21c are operated to be charged, and the first shutoff valve 35a and the second shutoff valve 35d are opened to open the first and fourth. The gas generated to the drop sleeves 21a and 21d is sucked into the suction pipes 30a and 30d, and the protection valve 60 shows a closed state.

The sucked gas passes through the centrifugal axial blower 72 and is collected in the U-shaped tube 95 of the transfer pipe 90 to be transferred to the carbonization chamber 10.

As mentioned above, although this invention was demonstrated in detail using the preferable Example, the scope of the present invention is not limited to a specific Example and should be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

As described above, the coke oven gas press-in transfer apparatus according to the present invention by using a long-pressure difference in the carbonization chamber of the coke oven forcibly transfers the gas discharged into the atmosphere when the bituminous coal is charged into the carbonization chamber, environmental pollution and Prevent corrosion of equipment due to deterioration

Claims (6)

A plurality of suction pipes having a lower end respectively provided in a drop sleeve of a charging vehicle to suck gas; A transfer pipe to which an upper end of the suction pipe is connected; A press-fit means provided at one end of the transfer pipe to press-fit gas; And a feed tube for transferring the gas passing through the press-fitting means to the carbonization chamber. The coke oven according to claim 1, wherein each of the suction pipes includes a shutoff valve for closing the suction pipe when charging bituminous coal through a drop sleeve and opening the suction pipe when not charging. Gas press-in feeder. The protection of claim 2, wherein the other end of the transfer pipe is opened when the shutoff valves are all closed, and the other end of the transfer pipe is closed when charging is started and a part of the shutoff valve is opened. Gas press injection device of the coke oven, characterized in that it comprises a valve. The gas press-in feed apparatus according to any one of claims 1 to 3, wherein the press-in means comprises a blower fan and a motor for driving the blower fan. In the method for charging the coal briquettes into the charging opening of the carbonization chamber through a plurality of drop sleeves installed in the charging car, A first step of charging bituminous coal through some of the drop sleeves by opening some of them and closing others while all of the drop sleeves are closed; Closing the portion of the drop sleeve and opening the remaining drop sleeve to thereby charge bituminous coal; The first and second steps are performed alternately one or more times each, A suction pipe connected to a transfer pipe for sucking gas is provided in the drop sleeve to close the suction pipe when the drop sleeve is opened in the first and second steps, and to open the suction pipe when the drop sleeve is closed to open the drop sleeve and the carbonization chamber. Sucking gas generated between the inlets; The gas indentation transfer method of the coke oven comprising the step of transferring the gas sucked through the suction pipe to the carbonization chamber. The method of claim 5, wherein the suction pipes are all closed, and the conveying pipes are vented to the outside, and when the suction pipes are partially opened, the conveying pipes are blocked.

Images