KR20120071085A

KR20120071085A - Device and method for increasing mount of coal in coke oven

Info

Publication number: KR20120071085A
Application number: KR1020100132684A
Authority: KR
Inventors: 신현준
Original assignee: 주식회사 포스코
Priority date: 2010-12-22
Filing date: 2010-12-22
Publication date: 2012-07-02

Abstract

The gas passage can be increased to ensure sufficient gas passage even when the charge amount of the coal is increased, and it is located at the top of the coke oven so that the top of the coal charged in the carbonization chamber can be more surely and effectively flattened. It is moved to the inside of the carbonization chamber through the charging hole formed on the upper side provides a pressurizing rod for flattening the mountain peaks of the coal, including a driving unit for raising and lowering the pressurizing rod.

Description

DEVICE AND METHOD FOR INCREASING MOUNT OF COAL IN COKE OVEN}

The present invention relates to a coke oven plant for producing coke. More particularly, the present invention relates to a charging amount increasing device and a method for increasing charging of carbon in a carbonization chamber of a coke oven.

Generally, coke used as a heat source for blast furnaces is produced by distilling coal in a coke oven plant. The coke oven equipment is an oven in which dry water is made, a charging vehicle for injecting coal into the oven, an extruder located at the side of the oven to take out the dry coke having been dried, and a red light which is located at the outlet side of the oven And a transfer car for moving the coke.

When the dry coke is dried and the coke is extruded in the coke oven, the process of charging the coal back into the coke oven by the charging vehicle installed to run on the top of the coke oven to dry it. This makes it possible to continuously manufacture coke every predetermined time.

When coke is extruded from the carbonization chamber of a coke oven, it reloads coal using a charging car. Increasing the loading of coal increases the loading density, thereby improving the quality of the coke. Therefore, increasing the amount of coal charged is not only effective in increasing coke production, but also positively in improving coke quality. However, when the amount of coal is increased, the gas path is not sufficiently secured, and thus, the amount of coal is not sufficiently increased. The gas passage refers to a space left at the top of the coal when charged into the carbonization chamber. The reason why the gas passage is important is that the coal reacts with the high temperature of the coke oven when the coal is charged, and a large amount of gas is generated, and the gas is discharged through the gas passage into the riser.

In general, coal is charged through four charging holes provided at the upper end of the carbonization chamber, and the charged coal is accumulated in a mountain peak shape around the charging hole. In this way, when the coal is accumulated to form a mountain peak, the gas path is blocked and the coal can no longer be charged, thereby leveling the mountain peak-shaped curve through the leveling operation.

However, in the related art, the leveler, which is charged into the carbonization chamber for carbon flattening, is located at a lower position than the mountain peaks of the carbon, and thus, sufficient flattening may not be performed.

In particular, when the charge amount of the coal is increased, the leveling operation by the leveler is hardly achieved, and mountain peaks in which the coal is accumulated rise to the upper part of the carbonization chamber, and the gap between them is narrowed, so that it is difficult to sufficiently secure the gas passage. As a result, the gas was not discharged smoothly and gas leaked between the lead and the gap, which caused air pollution.

Therefore, securing gas passage is most important for increasing the charge amount of coal, but it is not possible to sufficiently increase the charge amount of coal because a satisfactory result is not obtained through the conventional planarization work.

Accordingly, there is provided a coal charging amount increasing device and a method of increasing a coke oven, in which a gas passage can be sufficiently secured even when the charging amount of coal is increased.

In addition, there is provided a coal charging amount increasing device and a method of increasing the coke oven, which can flatten the top of the coals charged in the carbonization chamber more reliably and effectively.

To this end, the apparatus is located in the upper part of the coke oven and moved to the inside of the carbonization chamber through a charging hole formed at the top of the carbonization chamber may include a pressure rod for pressurizing the mountain peaks of the coal, and a drive unit for lifting the pressure rod up and down. have.

The pressure rod may be formed in a size corresponding to the charging hole.

The pressure rod may have a flat structure at the bottom contacting the bullet.

The pressurizing rod may have a conical cross-section having a bottom contact with the bullet.

The driving unit may include a driving cylinder installed in a charging vehicle on the top of the coke oven and connected to the pressure bar.

The method of augmenting may include pressurizing the top of the coal with a pressurizing rod after injecting the coal into the carbonization chamber, and flattening the top of the coal with a leveler.

According to the present apparatus as described above, by pressurizing and flattening the uppermost part of the coals charged in the carbonization chamber, it is possible to sufficiently secure the gas passage even if the amount of coals is increased. This will increase the amount of coal to the maximum possible.

In addition, by maximizing the loading of the coal to increase the charging density, it is possible to increase the coke production and to improve the quality of the coke.

1 is a schematic view showing a coke oven installation having a coal charging amount increasing apparatus according to the present embodiment.
FIG. 2 is a schematic view showing a coal charging amount increasing apparatus of a coke oven according to the present embodiment.
3 is a schematic diagram illustrating an apparatus for increasing a charge amount of coke oven according to another embodiment.
4 is a schematic view for explaining the operation of the coal charging amount increasing apparatus according to the present embodiment.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As can be easily understood by those skilled in the art, the embodiments described below may be modified in various forms without departing from the concept and scope of the present invention. Where possible, the same or similar parts are represented using the same reference numerals in the drawings.

All terms including technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

1 and 2 show the coal charging amount increasing apparatus of this embodiment installed in a coke oven installation.

As shown, the coke oven equipment is equipped with a carbonization chamber 100 in which carbon is charged to dry the carbon, and the charging vehicle 120 for injecting coal through the charging inlet 110 installed in the carbonization chamber 100 at the top ) Is provided. Coke oven gas (COG) generated when the coal is carbonized in the coke oven is discharged to the riser 130 through a gas passage formed in the upper carbonization chamber.

Four charging holes 110 are installed at the upper end of the carbonization chamber 100 of the coke oven, and the charging vehicle 120 injects coal through the charging holes 110.

Here, the apparatus is disposed at a position corresponding to each of the charging holes 110 and moved into the carbonization chamber 100 through the charging holes 110 to pressurize the mountain peaks of the coal to the top and flatten the rods 10. It includes a drive for raising and lowering the pressure bar (10).

In this embodiment, the drive unit and the pressure rod 10 has a structure installed in the charging vehicle 120 to run along the top of the coke oven. Accordingly, the pressure rod 10 is moved together with the charging vehicle 120 to be located on the charging hole 110 of each carbonization chamber 100.

The driving unit includes a driving cylinder 20 installed in the charging vehicle 120 and connected to the pressure rod 10.

Accordingly, when the driving cylinder 20 is extended and operated, the pressure rod 10 is lowered and moved over the mountain peak of the shot through the charging hole 110, and the pressing force and pressure of the pressure rod 10 according to the extension of the driving cylinder 20 are increased. The top of the peak of the bullet is pressed and flattened by the weight.

The flattening process by the lowering of the pressure bar 10 may be repeatedly performed several times.

As shown in FIG. 1, the driving cylinder 20 is vertically installed at one side of the charging vehicle 120. And the pressure bar 10 is provided with four, such as the charging inlet 110 of the carbonization chamber 100, the upper end is fixed to a separate bracket 30 has a structure that moves together. The piston rod of the drive cylinder 20 extends downward and is connected to the bracket 30. Accordingly, when the driving cylinder 20 is stretched and operated, the four pressure rods 10 installed on the bracket 30 are moved up and down together.

In the present embodiment, two driving cylinders 20 are provided and connected to the bracket 30, but the number of installation of the driving cylinders 20 is not particularly limited. For example, the driving cylinder 20 may be installed on each pressure rod 10, respectively.

The pressure rod 10 may be made of a weight or bulky structure to increase the pressing force for the coal by using its own weight. For example, the pressure bar 10 may be made of a steel material.

In addition, the pressure rod 10 is made of a shape and cross-sectional size corresponding to the charging port 110 to be moved smoothly through the charging port 110. In the present embodiment, the pressure rod 10 has a flat bottom surface, and is flattened by pressing the top of the coal piled in the form of a mountain peak.

On the other hand, as shown in Figure 3, according to another embodiment of the device, the pressure rod 11 may be formed in a conical cross-section of the bottom surface. For example, the pressure rod 11 may have a conical shape at the bottom surface thereof, and may have a polygonal pyramid structure such as a triangular pyramid or a square pyramid.

In this structure, when the pressure rod 11 presses the top of the coal stacked in the form of a mountain peak, the top of the coal is flattened and the top is pressed by the conical pressure rod to be pressed into the groove shape. Accordingly, when the flattening operation is performed by the leveler, the coal is pushed into the pressed portion to increase the flattening and coal loading amount.

Hereinafter, the operation by the apparatus will be described with reference to FIGS. 2 and 4.

When the coke distilled from the carbonization chamber 100 of the coke oven is extruded, the charging vehicle 120 is moved to the extrusion-completed carbonization chamber 100 for the next process, and the carbonization chamber 100 through the charging opening 110. Will be injected internally. When the injection of the coal is completed from the charging vehicle 120 through the charging hole 110, the coal is accumulated in the form of a mountain peak for each charging hole 110.

This apparatus can secure the gas passage W by flattening the upper portion of the coal even when the carbon is charged as much as possible in the carbonization chamber 100. Accordingly, as shown in FIG. 2, it is possible to inject coal to the charging hole 110 at the upper end of the carbonization chamber 100.

As such, after charging the carbon into the carbonization chamber 100 as much as possible, when the apparatus is driven, the charging vehicle 120 places the pressure rod 10 of the apparatus on the charging inlet 110 of the carbonization chamber 100. do. When the pressure rod 10 is exactly placed on the charging hole 110, the driving cylinder 20 is extended to lower the pressure rod 10.

When the driving cylinder 20 is extended and operated, the bracket 30 installed at the tip of the piston rod of the driving cylinder 20 is lowered, and each of the pressure rods 10 installed at the bracket 30 is lowered to insert the charging holes 110. It will be lowered into the carbonization chamber 100 through).

The pressure rod 10 is lowered through the charging inlet 110 is in contact with the top of the mountain peak of the bullet is pressed to the top. Therefore, the peaks of the carbon are pressed and flattened by the self-weight of the pressure rod 10 lowered by the drive cylinder 20 and the pressing force by the drive cylinder 20.

In this way, the peaks of the coal are pressed and flattened by the pressure bar 10, so that the gap between the upper end of the coal and the upper end of the inside of the carbonization chamber 100 is widened to sufficiently secure the gas passage W.

When the mountain peak of the coal is flattened, the driving cylinder 20 is contracted again, and the pressure rod 10 is moved upward and moved to the top of the coke oven through the charging hole 110.

When the top planarization process of the coal by the pressure rod 10 is completed, the leveling operation of the coal is performed using a leveler provided in the carbonization chamber. As a result, the leveler is moved into the carbonization chamber to further flatten the top of the coal. The pressurization process by the pressurizing rod and the leveling process by the leveler may be performed alternately or the primary pressurization process and the leveling operation may be sequentially performed.

While the illustrative embodiments of the present invention have been shown and described, various modifications and alternative embodiments may be made by those skilled in the art. Such variations and other embodiments will be considered and included in the appended claims, all without departing from the true spirit and scope of the invention.

10,11: pressure rod 20: drive cylinder
30: bracket

Claims

A pressurizing rod located at the top of the coke oven and moved to the inside of the carbonization chamber through a charging hole formed at the top of the carbonization chamber to press and flatten the top of the charged coal;
Driving unit for raising and lowering the pressure rod
Shot charging amount increase device of the coke oven comprising a.

The method of claim 1,
The pressurizing rod is a coal charging amount increasing device of the coke oven having a bottom structure in contact with the coal.

The method of claim 1,
The pressurizing rod is a coal charging amount increasing device of the coke oven having a lower end in contact with the coal conical section structure.

The method according to any one of claims 1 to 3,
Wherein the drive unit is installed in the charging vehicle of the top of the coke oven, the charging amount of the coke oven of the coke oven comprising a drive cylinder connected to the pressure bar.

A method of increasing the charge quantity of a coke oven, comprising the steps of pressurizing a top of the coal with a pressurizing rod after injecting the coal into the carbonization chamber of the coke oven, and flattening the top of the coal with a leveler.