KR100762493B1 - Apparatus for preventing the leveller door from leaving in the cokes oven - Google Patents

Abstract

The present invention after charging the coke in the coke oven and then performing a flat operation, to prevent the release of the leveler door when the leveler door is closed to prevent the release of the coke oven leveler door to prevent the leakage of the gas inside the oven to the outside Relates to a device.

To this end, the present invention is the expansion spring 28 is installed to support the closing lever 25 from the door body 22 of the leveler door 20, and when the leveler door 20 is closed, the closing lever ( Bearing ball 30 and ball casing 31 inserted into the through-hole 29 penetrated through the closing ring 24 to fix 25, a compression spring 32 inserted to support it, and Provided is a lever release prevention device for a coke oven leveler door, characterized in that it consists of a closing lever fixing portion 34 made of a spring cap 33 is bolted to the through-hole (29).

The present invention prevents the leakage of gas in the coke oven leveler door, thereby preventing the environmental environment and pollution to be prevented, the gas blocking operator is unnecessary, there is an effect of reducing maintenance costs and material costs.

Coke oven, leveler door, closing lever, closing ring, expansion spring, lever fixing

Description

Leverage prevention device of coke oven leveler door {APPARATUS FOR PREVENTING THE LEVELLER DOOR FROM LEAVING IN THE COKES OVEN}

1 is a position view of a coke oven and a trolley;

Figure 2a is a side cross-sectional view showing a state in which the door of the leveler is open;

2B is a side cross-sectional view showing the door in a closed state of the leveler;

2C is a side cross-sectional view showing a state in which the door lever of the leveler is detached;

3 is an overall perspective and partial perspective view of the leveler door;

Figure 4a is a front view of a leveler door equipped with a leveler door departure prevention device according to the present invention;

Figure 4b is a side cross-sectional view of the leveler door equipped with a leveler door departure prevention device according to the present invention.

5 is an exploded perspective view and a cross-sectional view of the closing lever fixing portion constituting the leveler door departure preventing device according to the present invention;

6 is a cutaway view and a coupling diagram showing a state in which the expansion spring constituting the leveler door departure prevention device according to the present invention is mounted.

♣ Explanation of symbols for main part of drawing ♣

20: leveler door 22: door body 25: closing lever 25-1: support                 

28: expansion spring 24: closing ring 29: through hole 30: bearing ball

32: compression spring 33: spring cap 34: closing lever fixing portion

The present invention relates to a lever release prevention device of the coke oven leveler door, and more particularly, after charging the coke in the coke oven and performing a flat operation, when the leveler door is closed to prevent the release of the leveler door to prevent the gas inside the oven It relates to a lever release prevention device of the coke oven leveler door for preventing the leakage of water to the outside.

In general, as shown in Figure 1, the oven 12 as a leveler door (20) of the coke oven (Cokes Oven) 12, the main equipment for producing cokes (cokes), which is a secondary raw material input to the steelworks furnaces When leveling the four charging holes 10 installed at the top into the barrel, open the leveler door 20 so that the coal can be evenly introduced into the oven 12 and leveling with the leveler beam 16. Is carried out.

Coke is a kind of coal charcoal used as a means of securing air permeability along with the role of heat source and reducing agent in the blast furnace. Charging car (Charging Car) 13 in the department is charged to four charging slots 10 and indirectly heated to 1,300 degrees Celsius in a sealed state and carbonized for about 18 hours. The completed red coke is pushed out of the coke oven 12 by a pusher car 14.

At this time, the red coke induced in the transfer car 15 on the opposite side of the coke oven 12 is loaded into the bucket 11 of the quenching car and then moved to the next step, CDQ (Coke Dry Quenching). Will be transferred. Then, the coke is discharged, and the coke oven 12 is empty, and the coal is charged again through four charging holes 10 in the upper charging car 13 of the oven 13, and at this time, the extruder 14 provides the leveler door 20. After opening, the leveler beam 16 is moved forward and backward for leveling.

Conventional coke oven leveler doors, as shown in Figs. 2 to 3, are installed on the top of the door on the extruder 14, and the coal is charged through the four charging holes 10 on the top of the coke oven 12. In the extruder 14, the leveler door 20 is opened and the extruder leveler beam 16 is moved back and forth by the operating relationship shown in FIG.

When the loading of coal in the charging vehicle 13 is completed, the extruder 14 closes the leveler door 20 by the operating relationship shown in FIG. 2B, and at this time, the opening and closing cylinder 17 when closing the leveler door 20. By the door closing roller 18 is closed by coming down the door closing lever 25, the door closing lever 25 is raised by the elasticity of the door closing roller 18 as the closing lever 25 is raised. Peel off from the closed loop (24). As a result, the leveler door 20 is not completely closed, and as time passes, the leveling door 20 is slightly opened while the closing lever 25 is peeled off from the closing ring 24 little by little. When the leveler door 20 is opened slightly without being completely closed, a gap is formed between the door frame 26 and the sealing strip 21, and a large amount of gas generated by coal coaling is leaked between the gaps. It is increasing air pollution. In addition, tar leaks due to coal distillation between the gaps and leaks, which causes the leveling door to be closed and causes gas leakage.

If the gas leaks due to the above causes, the operator or the worker waiting for it may close the gap with a mortar, etc., resulting in the worker's workload, and if the gas leakage condition is severely repeated, the leveler door (20) The repair work is repeated by removing the tar and carbon attached to the sealing strip 21, replacing the sealing strip 21, replacing the ring 24 and the lever 25, and the like.

As a result, frequent door replacements, such as delays in operation, excessive maintenance and material costs, and also a lot of work for the operator and operator.

In order to solve the above problems, the present invention is to install an additional device for preventing the leveler door lever of the coke oven from being released from the closing ring, preventing the leveler door from opening little by little to ensure that the sealing strip and the leveler door frame It is an object of the present invention to provide a lever release prevention device for a coke oven leveler door that can be prevented from leaking into the atmosphere by being in close contact.

In order to achieve the above object, the present invention is inserted into a fixing pin for movably fixing the door body and the closing lever constituting the leveler door, the upper end is supported by the door body, the lower end is to support the closing lever An expansion spring supported on the support,

When the leveler door is closed, the bearing ball and the ball casing is inserted into the through hole penetrated by the closing ring for fixing the closing lever, the compression spring is inserted into the through hole to receive it, and the through hole to fix it. It is to provide a lever release prevention device for the coke oven leveler door, characterized in that consisting of a closed lever fixing portion consisting of a spring cap that is bolted.

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

Figure 4a is a front view of a leveler door equipped with a leveler door departure prevention device according to the present invention, Figure 4b is a side cross-sectional view of the leveler door equipped with a leveler door departure prevention device according to the invention, Figure 5 is in accordance with the present invention 6 is an exploded perspective view and a cross-sectional view of the closing lever fixing part constituting the leveler door departure preventing device, and FIG. 6 is a cutaway and a combination view illustrating a state in which an expansion spring constituting the leveler door departure preventing device is mounted.

As shown in FIG. 3 described above, the leveler door 20 of the coke oven 12 includes a door body 22 and a sealing strip 21 and a door frame 26 fixed to the door 23 and the door. , A closing lever 25, a closing ring 24, and a fixing pin 27 coupling the door body 22 and the closing lever 25, as shown in FIG. 4, the leveler door 20. Improvement of the closing ring 24, which is a locking device, and an expansion spring 28 is inserted between the leveler door main body 22 and the closing lever 25 so that an upper end thereof is supported under the door main body 22. The lower end is to be supported by the support 25-1 supporting the closing lever 25 so as to prevent the closing lever 25 of the leveler door 20 from being separated from the closing ring 24.

As shown in FIG. 5, the through-holes 29 are formed in the closing ring 24, and the through-holes (front) of the front surface of the closing ring 24 and the closing lever 25 are in contact with each other. 29) is made smaller than the size of the rear hole so that the bearing ball (Bearing Ball 30) only a little, put the bearing ball 30 in the front with a large rear hole, the bearing ball 30 is operated flexibly on the rear of the bearing (30) Insert the bearing casing 31 as much as possible, and then insert the compression spring 32 so that the bearing ball 30 comes into close contact with the front, and the force can be transmitted, Secure the Spring Cap 33.

In addition, the present invention, as shown in Figure 6, by inserting the expansion spring 28 in the fixing pin 27 between the main body 22 and the closing lever 25 of the leveler door 20, the leveler door ( Force is transmitted to the closing lever 25 of the 20 to maintain the closing lever 25 of the leveler door 20 from being released from the closing ring 24.

Hereinafter, the operation of the present invention will be described in detail.

As illustrated in FIG. 4B, even when the locking device according to the present invention is installed in the leveler door 20 of the coke oven 12, as shown in FIG. 2A, the opening / closing cylinder 17 and the door opening ring ( 19), and as shown in FIG. 2B, when closing with the opening / closing cylinder 17 and the door closing roller 18, the bearing ball 30 enters into the closing lever 25, which does not interfere with the operation. And, when the door is closed, or after it is closed, the locking device according to the invention is to act.

When closing first, the closing lever 25 is prevented by the force of the expansion spring 28 from rising by the elasticity of the door closing roller 18 riding down the closing lever 25 by the opening / closing cylinder 17, In addition, since the compression spring 32 pushes the bearing ball 30 even when it is closed, the protruding portion 30 is formed in front of the closing ring 24, and the closing lever 25 is the protruding portion before applying any force. Since the force of the expansion spring 28 is not exceeded 30, the closing lever 25 is prevented from being separated from the closing ring 24.

Since the closing lever 25, which is the locking device of the leveler door 20, does not leave the closing ring 24, the sealing strip 21 is in close contact with the door frame 26 to prevent the gas from leaking from the leveler door. do.

As described above, the present invention prevents gas leakage due to the present invention that the gas leaks from the coke oven leveler door, thereby improving the environmental environment and preventing air pollution, eliminating the need for gas blocking operators, maintenance costs and material costs A significant and intangible effect, such as avoiding delays, can be obtained.

Claims (1)

The upper end is supported by the door main body 22 and the lower end is inserted into the fixing pin 27 for fixing the door main body 22 and the closing lever 25 to be movable. An expansion spring 28 supported by a support 25-1 supporting the 25, and When the leveler door 20 is closed, the through hole 29 penetrated through the closing ring 24 in contact with the connecting pin 25-2 of the closing lever 25 and the bearing ball 30 inserted therein. And a closing lever comprising a ball casing 31, a compression spring 32 inserted into the through hole 29 to receive the ball casing 31, and a spring cap 33 bolted to the through hole 29 to fix the ball casing 31. Lever prevention device of the coke oven leveler door, characterized in that composed of a government (34).

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