KR200312677Y1 - Technical spring gun used for repairing a firebrick and extension life of converter - Google Patents

Abstract

The present invention relates to a technical spring gun for the repair material firing for the converter furnace wall repair and life extension, the spring gun according to the present invention is installed between the main body, the barrel, the barrel and the body for supporting the barrel on the body; A launch member and a launch spring slidably installed in the barrel; An expansion cylinder which pulls the firing member to the opposite side of the barrel of the barrel so as to stretch the firing spring; Detachable means for attaching and detaching the expansion cylinder and the launch member; The firing member is positioned at a predetermined position by the expansion cylinder, and the firing member is fixed at the predetermined position in a state where the expansion cylinder and the firing member are separated by the detachable means. It is equipped with a trigger means for releasing the fixed state so that, according to the present invention, the technical spring gun has a large amount of repair material of 1.5 tons in one repair, so that a lot of time and manpower This waste can be improved and this can be improved, and working at the converter inlet can prevent worker accidents due to the temperature emitted from the converter inlet. In addition, when the location to be repaired is difficult, it is difficult to drop the repair material at the target point exactly by the existing manual work, but it can bring a big improvement in the work efficiency because the repair material can be put exactly where desired by the present design.

Description

Technical spring gun used for repairing a firebrick and extension life of converter}

The present invention relates to a technical spring gun for firing repair materials, and more specifically, was created to repair converter furnace walls for refining molten iron. Repair and life span of converter furnaces to efficiently and reliably carry out existing manual work. A technical spring gun for firing repair materials for extension.

In general, the converter (1) as shown in Figure 1a and 1b is a container consisting of the outer shell (2) and the refractory brick (3) suitable for various functions of the inner and the molten iron (8) transferred to the ladle (7) and After charging and dissolving the scrap metal (5) through the refining process to remove impurities serves to discharge the molten steel (8) through the tap.

In the case of POSCO, POSCO repeats about 25 times a day per converter, so the impact of the molten iron into the converter (1) and the hot molten iron (8) of the converter wall (3) Some parts are damaged and require repair. At present, as shown in FIG. 2, a refractory material that is melted at a low temperature (200 ° C.) is directly injected into the converter in a packed state of 1 to 3 kg and the refractory reaches the furnace wall 3 as shown in FIG. 3. The repair process is repeated by filling the eroded parts while melting. This maintenance work is causing the following problems for the operator to directly administer the repair material 10 in the vast converter of more than 10m in diameter, 15m in height at the converter inlet (4).

Even if the molten steel 8 in the converter 1 is emptied to repair the converter, since the inside maintains a high temperature, even if a worker wears a heat radiation suit, there is considerable risk and difficulty.

Since maintenance work cannot be done frequently to improve productivity by continuous work, once repair work is performed, the furnace wall (3) is repaired using about 1.5ton of fire-resistant material (1). It must be committed. In addition, because of manual input, it is difficult to drop it to the target point for repairing, and when it is not thrown correctly, it wastes that much material.

The present invention is to solve the above-mentioned problems, the purpose of the present invention is to adjust the elasticity according to the position for the purpose of repair using physical elasticity so that the weight of the input material and the launching material can be quickly dropped to exactly the desired point It is to provide a technical spring gun for repair material firing for repairing furnace walls and prolonging the life of the furnace to fire the repair material according to physical characteristics such as distance and internal friction coefficient of the mechanical device.

Figure 1a and Figure 1b is a model of charging the scrap iron and molten iron in the converter.

2 is a working view for repairing the converter wall by hand.

Figure 3 is a state of use of the technical spring gun for repair material firing according to the present invention.

Figure 4 is a process of repairing the furnace wall damaged by the present invention.

5a and 5b is a side cross-sectional view showing a technical spring gun for repair material firing according to the present invention.

Figure 6 is a plan sectional view showing the barrel of the technical spring gun for repair material firing according to the present invention.

7 is a perspective view showing the trigger means of the technical spring gun for repair material firing according to the present invention.

** Description of the symbols for the main parts of the drawings **

100 ... body

200.Support

300 ... barrel

Technical spring gun for repairing the furnace furnace wall repair and life extension according to the present invention for achieving the above object is the body 100 to be moved position; A barrel 300 installed on an upper side of the main body 100; A support part 200 installed between the barrel 300 and the main body 100 to support the barrel 300 on the main body 100; A slider 350 slidably installed in the barrel 300 to launch the repair material 10 into the converter 1 and a slider 360 installed at the rear of the carrier 350; One end is coupled to the launching port side of the barrel 300, and the other end is coupled to one side of the carrier 350; An expansion cylinder (390) for pulling the carrier (350) to the opposite side of the barrel of the barrel (300) to expand and contract the firing spring (450); An air stopper (411) for attaching and detaching the expansion cylinder (390) and the slider (360); The slider 360 is fixed to the position pulled backward by the expansion cylinder 390, and the release state of the slider 360 at the time of launching to release the carrier 350 by the restoring force of the firing spring 450 It is characterized in that it comprises a trigger means for firing the repair material 10 by a. And preferably between the carrier 350 and the slider 360, a shock absorbing spring 380 is installed, The lower end of the slider 360 is characterized in that the guide roller 370 is installed. Further, on one side of the air stopper 411, a removable cylinder 410 for lifting and lowering the air stopper 411 is installed. In addition, the trigger means is preferably a plurality of stop-stop 421 for projecting the guide roller 370 is formed on the upper surface is formed to be inclined lower surface. The upper trigger 420, the lower trigger 430 formed to be inclined in contact with the inclined surface of the upper trigger 420 in the lower portion of the upper trigger 420, and the lower trigger 430 to move laterally The upper trigger 420 is characterized by having a trigger cylinder 440 to move up and down.

Hereinafter, the configuration and operation of the present invention will be described.

Technical spring gun for the repair material firing according to the present invention is applied to the resilience force by elasticity after applying a tension to the firing spring 450 using the two firing spring 450 as shown in Figure 5a, 5b and 6 By using the force to push the material from the barrel 300 installed in the main body 100 to launch the repair material 10 in a desired position is used in the elliptical converter inlet 4 as shown in FIG. .

The firing spring 450 is tensioned using hydraulic pressure, but the resilience force is determined according to the distance in which the firing spring 450 is stretched. It is possible to adjust so that 10) does not hit the furnace wall 3 unreasonably.

As shown in FIG. 4, the repair spring of the technical spring gun of the present invention has a shape in which the converter 1 is convex in the center and decreases in diameter toward the edge thereof, so that the furnace wall 3 near the center of the converter inlet 4 is formed. It is provided with a support 200 having a top and bottom control unit 210 and the left and right control unit 220 to accurately insert the material.

Therefore, it is easy to adjust the angle from side to side as well as up and down and install a shock absorbing spring 380 to mitigate the internal impact due to the repulsive force of the firing spring 450, and also the hydraulic bottom on the bottom roller 120 portion of the main body 100 By installing the stopper 110 is configured in consideration of the maximum safety to work from the outside by suppressing the shaking due to the impact during material launch.

In addition, in order to withstand the high heat emitted from the converter inlet 4, a ceramic coated heat sink 320 is installed in front of the firing barrel 300 so as not to affect the mechanical malfunction due to heat transfer and its risk and mechanical and physical properties. Consists of.

More specifically with respect to the configuration of the repair spring for the maintenance spring according to the present invention, as shown in Figures 5a and 5b and 6 and 7 Technical spring gun for repairing the firing material for repair and extension of the furnace furnace wall Silver fastens the front of the firing spring 450 manufactured using two large high-strength steel to the spring holder 340, the other side is coupled using a socket bolt 341, the socket bolt 341 minimizes the friction force It is attached to the slider 360 for the purpose, and the guide roller 370 for a sliding role is mounted below the slider 360.

The force when tensioning the firing spring 450 is displaced to the slider 360, and a telescopic cylinder 390 is mounted at the rear of the slider 360 to apply a tension to the actual firing spring 450. In order to couple the 390 and the slider 360, a detachable cylinder 410 is installed at the upper end of the apparatus as shown in FIG. 5A, and the air stopper 411 is attached to or detached from the detachable cylinder 410. ) Passes through the coupling ring 400 for coupling the slider 360 and the hydraulic expansion cylinder 390 of the hydraulic type.

The telescopic cylinder 390 was used to reduce the space occupied by the present invention as much as possible and moves forward and backward through several stages. In the case of a cylinder having a long stroke movement, the length of the cylinder increases due to the need for a lot of space. The stretch cylinder 390 of the present invention passes through several stages and the cylinder rod is inserted into the rod of the rear rod. Although the stroke is large, the actual cylinder length is short, which is a big advantage in space utilization.

Once the firing spring 450 is tensioned hydraulically, the slider 360 is moved by a firing stopper 421 formed on the upper trigger 420, which is a component of the trigger means to be described later, as shown in FIGS. 5A and 5B. It is fixed, the firing stopper 421 is connected to the upper trigger 22 to repeat the vertical movement in accordance with the movement of the trigger to restrain the slider 360 to which the guide roller 370 is attached.

5 and 7, the trigger means is composed of two parts of the upper and lower, the trigger means is the upper surface of the lower trigger 430 and the lower surface of the lower trigger 430 formed to be inclined downward toward the front side to the rear side It includes an upper trigger 420 formed to be inclined upward and a stop stopper 421 and a trigger cylinder 440 to be described later. Here, the lower trigger 430 is connected to the rear trigger cylinder 440, The repetitive motion is repeated, and the upper trigger 420 is designed to cause the vertical motion by the reciprocating motion of the lower trigger 430.

In addition, the upper trigger 420 is designed so that the lower inclined surface is inserted into the guide groove 431 of the lower trigger 430 so as not to be released when the trigger is operated and tension the firing spring 450 as shown in FIG. In order to reduce the internal friction coefficient at the time, the guide roller 370 is attached to the lower portion of the slider 360 to minimize the friction force.

On the other hand, the trigger cylinder 440 is moved in the opposite direction to the upper and lower cylinder 390, the expansion cylinder 390 moves from left to right in order to tension the firing spring 450, the tensioned firing spring 450 is fixed The trigger cylinder 440 moves from the right to the left to push the lower trigger 430. Due to this movement, the upper trigger 420 and the shooting stopper 421 are moved upward to fix the slider 360. Done.

In addition, by fixing the slider according to the fixed position of the trigger stopper 421 of the trigger means by adjusting the tension range of the firing spring 450 is designed to control the firing distance and force, the repair material according to the distance of the falling point It is possible to control the power fired.

The repair material 10 is mounted through the inlet 310 of the barrel located in the front of the present invention, and also the repair material 10 is packaged in the form of powder, so that there is a risk that the packaging is damaged by the impact when the material is fired. 10) The carrier carrier 350 was installed in the barrel 300 so that it does not directly receive elastic force.

The repair material 10 moves together with the carrier 350, and at the end of the barrel 300, the carrier 350 stops and only the repair material 10 is fired to minimize the loss of material due to packaging damage. In order to reduce wear due to contact with the barrel 300 by reciprocating the carrier 350, the inside of the barrel 300 has been chrome coated, and to protect the life and the interior of the device due to the high temperature emitted from the converter inlet 4. To the front of the present invention (11) by installing the above-mentioned heat sink 320 coated with ceramic to enable a long time use.

In addition, the shock absorbing spring 380 described above is installed in the middle to alleviate the internal shock caused by the direct collision between the slider 360 and the carrier 350 in the barrel 300 when the repairing material 10 is fired. In order to prevent shaking, a bottom stopper 110 for fixing the body that is moved up and down is installed next to the bottom roller 120 in the lower part of the main body 100. Move to fix the body 100 to the ground.

As shown in FIG. 3, the upper part of the main body 100 is installed in order to be able to be adjusted according to the position to be repaired. The upper and lower adjusting part 210 and the left and right adjusting part 220 which can be rotated in the left and right directions are installed. Therefore, in repairing the converter inner wall 3 from the converter inlet 4, considering the size of the converter inlet, the distance from the inside of the converter, the diameter of the converter inlet, etc., the utility of the converter was improved.

In addition, in order to prepare for a sudden failure of the direction and position adjustment device, the direction knob 460 was installed on the rear and side surfaces so that it can be adjusted manually.

Under the main body 100, the power unit 130 is installed with a hydraulic unit and other devices for operating the spring tension, trigger adjustment and fixing bottom stopper 110, the control unit 140 to control the overall mechanical operation Is installed on the back side together to prevent heat loss and malfunction.

Hereinafter will be described the operating state of the repair spring firing spring spring gun according to the present invention.

Once the refilling material 10 is charged to the inlet 310 and operated by the detachable cylinder 410 on the upper part of the barrel 300, the air stopper 411 is mounted on the coupling ring 400 for the expansion cylinder ( 390 is operated to tension the firing spring 450. When the two firing springs 450 respectively installed on both sides are tensioned and the slider 360 is moved backward, the trigger cylinder 440 connected to the lower trigger 430 is operated forward to move the firing stopper 421 upward. The slider 360 is fixed to the shooting stopper 421.

After this process, the upper and lower control unit 210 and the left and right adjusting unit (210) and the left and right adjusting unit (210) are separated from the connecting ring 400 for coupling the air stopper 411 by operating the detachable cylinder 410 of the upper portion ( 220 to determine the location to be launched.

When the position is determined in this way, by moving the bottom stopper 110 for fixing the lower body 100 to fix the main body 100 to the ground and moving the trigger cylinder 440 connected to the lower trigger 430 to the rear, the lower trigger ( The upper trigger 420 is moved downward by the backward movement of the 430, so that the release stopper 421 moves downward to release the restraint of the slider 360 to the repulsive elasticity of the tensioned firing spring 450. By the repair material 10 is to be launched to the aimed position.

As described above, in the embodiment of the technical spring gun for repairing material firing according to the present invention, if it includes essential components of the present invention to basically fire the repairing material with elastic force of the spring even if a part of each component is modified differently. All should be considered to be included in the technical scope of the present invention.

As described above, according to the present invention, the technical spring gun is designed to solve various problems caused by the operator directly inserting the existing repair material into the converter in repairing the furnace wall composed of the internal firebrick in the converter. The expected effects are as follows. When repairing one time, 1.5 tons of repair material is too much for the workers to put in, so much time and manpower are wasted to repair it. This can be improved. The safety accident of the worker by temperature can be prevented. In addition, when the location to be repaired is difficult, it is difficult to drop the repair material at the target point exactly by the existing manual work, but it can bring a big improvement in the work efficiency because the repair material can be put exactly where desired by the present design.

Claims (4)

A main body 100 capable of moving in position; A barrel 300 installed on an upper side of the main body 100; A support part 200 installed between the barrel 300 and the main body 100 to support the barrel 300 on the main body 100; A slider 350 slidably installed in the barrel 300 to launch the repair material 10 into the converter 1 and a slider 360 installed at the rear of the carrier 350; A launch spring 450 having one end coupled to the launching port side of the barrel 300 and the other end coupled to one side of the carrier 350; An expansion cylinder (390) for pulling the carrier (350) to the opposite side of the barrel of the barrel (300) to expand and contract the firing spring (450); An air stopper (411) for attaching and detaching the expansion cylinder (390) and the slider (360); The slider 360 is fixed to the position pulled backward by the expansion cylinder 390, and the release state of the slider 360 at the time of launching to release the carrier 350 by the restoring force of the firing spring 450 Technical spring gun for repair material firing for the converter furnace wall repair and life extension, characterized in that it comprises a trigger means for firing the repair material (10) by. The converter furnace wall repair of claim 1, wherein a buffer spring 380 is installed between the carrier 350 and the slider 360, and a guide roller 370 is installed at a lower end of the slider 360. Spring gun for firing repair materials for extended life. 3. The technical material for repairing a furnace for repairing a furnace furnace wall and extending the lifespan of claim 2, wherein a detachable cylinder 410 for elevating and operating the air stopper 411 is installed at one side of the air stopper 411. Spring gun. The upper trigger 420 of claim 2, wherein the trigger means has a plurality of launching stoppers 421 protruding from the guide rollers 370 on the upper surface thereof, the lower surface of which is inclined. A lower trigger 430 having an upper surface inclined so as to contact an inclined surface of the upper trigger 420 at a lower portion of the upper trigger 420; Technical support for firing the repair material for the converter furnace wall maintenance and life extension characterized in that it comprises a trigger cylinder (440) for moving the lower trigger (430) to the side to raise and lower the upper trigger (420).