KR20000009317U - Slab Burr Removal Device - Google Patents

Abstract

The present invention relates to a slab burr removal device configured to be easily removed after preheating the burrs remaining in the head and tail of the bottom of the slab, which is an intermediate material produced in the steelmaking process, the support unit 110 The slab support body part 100 on which the slab 10 is placed, the track part 200 attached to the frame 130 of the slab support body part 100, and the driving motor installed on the main body 310. A traveling device unit 300 in which the pinion 330 is engaged with the driving rack 230 of the track part 200 and rotated by the rotation of the rotation shaft 320 by 340, and a transverse motor installed in the body 410. The pinion 412 of 414 is engaged with the transverse rack 370 attached to the main body 310 of the traveling unit 300, the traverse unit 400, and the body of the traverse unit 400 410 is installed on the upper surface by the oxygen and gas supplied from the oxygen and gas control panel 160 It is configured to include a member 12, gas soil tooth 500 for going for deletion of the probe (10).

By preheating the burrs remaining or fixed to the head and tail of the slab bottom by the configuration and action of the present invention as described above, it is possible to cleanly remove the fatigue and workability deterioration due to manual removal of the residual burrs Prevents, shortens working time, prevents accidents, improves the flow of work logistics, and improves slab quality and rolled coil quality.

Description

Slab Burr Removal Device

The present invention relates to a slab burr removal device, and in particular, after preheating the burrs remaining in the head part and the tail part of the slab bottom surface, which is an intermediate material produced in the steelmaking process, can be easily removed. To a slab burr removal device.

In general, in the continuous casting factory of steel mills, slabs, which are intermediate materials, are cut into various sizes up to 230 mm thick, 850 mm to 2,000 mm wide, and 5,500 mm to 12,000 mm long to meet the demands of the consumer. To produce.

The slab cut by the torch cutting machine inevitably has a burr welded to the head portion and the tail portion below the cross section, and a burr removal device for removing the slab is installed in the following process. When the slab arrives, the burrs are removed by the blow of the blades by air cylinders, and then the narrow slabs are mostly loaded into hot-rolled furnaces immediately after production to produce rolled coil products, and the wide slabs are transferred to other factories or the slabs themselves are The product is supplied to other steel companies.

The burr removal device has eight blades lifted by an air cylinder and rides on the bottom of the slab to strike and remove the burrs, so that the blade wears according to the slab width, the slab shape, the slab material according to the carbon content, and the burr. Burrs remain due to size, blade level, etc., and burrs are formed on the bottom of slab, making it difficult for workers to check and manage burr residuals.

In particular, if the burrs remain primarily removed from the burial line by burr removal devices, but burrs remain for many of the reasons mentioned above, the waiting time for transporting them from the outdoor yard is long, so that several slabs are subjected to slab loads during stratification. The burrs are then fixed to the head and tail of the slab bottom.

In wide slabs, the burrs are not removed in most cases, and all of them are supplied to other factories or other steel companies.

Accordingly, the slab with the burr remaining on the rolling mill adversely affects the hot rolled and cold rolled coils and affects the rolled rolls.

For this reason, other factory transfer slabs and other steel company supply slabs are transported after final slab shape, burr residue, and residual surface grooves are observed in the outdoor yard before transfer, and hand grinding when abnormal slab shape or residual surface grooves are observed. Although it is removed by work, most of the burr remains because it occurs continuously. Therefore, it is difficult to remove by hand cutting because the number of slabs is to be processed from the bottom to the top, and the worker enters under the slab and melts it on the bottom of the slab using jig. It will be removed by hitting the remaining burr.

1 is a view showing a conventional slab burr removal state, when the overhead crane lifts the slab 10 in an outdoor yard to observe the absence of burr 12 and if burr 12 remains, the slab support 14 After placing the slab 10, the operator 20 manually operated the striking tool (pneumatic scaler) 22 using the compressed air, so that the burr of the bottom of the slab 10 in the under riding position at the bottom of the slab 10. Remove it by striking (12) and removing it little by little.

The blow tool 22 is connected to the air hose, and the blade provided at the front end to the burr 12 while the air control valve is opened to advance the ball containing the high-pressure air introduced into the blade to hit the blade The blade has a structure for reversing the ball again by the buffer spring.

In this conventional slab burr removal method, the burr 12 is fixed to the bottom of the slab 10 while the slab 10 rides on the rollers of the casting line, and the hot slab 10 is placed on the outdoor yard. Since the burr 12 is completely fixed to the bottom of the slab 10 by the slab load of several slabs in the process of being bulked and cold each other, the burr 12 is used by the blade of the hitting tool 22. The blade is easily blunt in the process of hitting, the blunt blade is difficult to dig between the burr 12 and the slab 10.

In addition, it is difficult to carry out work by holding the hitting tool 22 in the hands and the head over the head because the weight of the hitting tool 22 itself, the working period during the removal of the burr 12 of the wide slab 10 While the workability is deteriorated with the requirement of the condensate, the condensate generated in the inflowing air causes frequent breakdown of the hitting tool 22, and in the case of the urgent feed material, the worker directly hits the burr by using a shovel ( 12) could not be effectively removed.

In addition, when hitting the burr 12 using the hitting tool 22, the dust is scattered in all directions together with the air discharged to reach the face, arms and neck of the worker has a problem that adversely affect the safety work there was.

The present invention was devised to solve the above problems, and provides a slab burr removal device that can be easily and easily removed by spraying high pressure oxygen after preheating the slab burr removed by conventional manual work. Its purpose is to.

1 is a conventional state of removing the slab burr,

Figure 2 is an overall configuration of the slab burr removal apparatus according to the present invention,

3 is a configuration diagram of the slab burr removing apparatus shown in FIG. 2;

4 is a cross-sectional view showing the configuration of a pressure type slab detection device according to the present invention;

5 is an enlarged view of the oxygen and gas control panel in the present invention,

6 is an exploded perspective view showing the structure of a traveling device according to the present invention;

Figure 7 is an exploded perspective view and a partially enlarged separation view showing the configuration of the traverse device unit in the present invention,

8 is an exploded perspective view showing the configuration of the gas torch unit in the present invention;

9 is an overall configuration according to the use of the present invention,

10 is a flowchart showing the operation by the sensor of the present invention.

<Description of the symbols for the main parts of the drawings>

10: slab, 12: burr, 100: slab support body, 110: support, 120: pressure-type slab detection device, 160: oxygen and gas control panel, 200: track part, 210: rail holder, 220: travel rail, 230: travel rack, 300: travel device, 310: main body, 316: traverse rail, 370: traverse rack, 400: traverse device, 410: body, 500: gas torch, 510: gas torch crater, 540: short , 542: single-ended rack, 550: guider, 522: pin removal nozzle

In order to achieve the above object, a slab support body part on which a slab is placed on an upper surface of a support part, a track part attached to a frame of the slab support body part, a traveling device part rotating in engagement with a running rack of the track part, and the traveling part A gas torch which engages and rotates with a transverse rack attached to the main body of the apparatus, and a gas torch installed on the upper surface of the body of the transverse apparatus to dissolve the burrs of the slab by oxygen and gas supplied from an oxygen and gas control panel. Provided is a slab burr removal device comprising a portion.

In the present invention, a pressure-type slab detection device for detecting whether the slab is charged and bent is installed at the center of the support part of the slab support body.

Hereinafter, the present invention will be described in more detail with reference to the drawings showing preferred embodiments.

The present invention is largely divided into a slab support body portion, a track portion attached to the frame of the slab support body portion, a traveling device portion provided on the running rail upper surface of the track portion, a transverse device portion installed on the upper surface of the main body of the traveling device portion, It consists of the gas torch part provided in the upper surface of the traverse device part.

As shown in FIG. 3, the slab support body 100 is placed on the upper surface of the support 110 using the overhead crane, and whether the slab 10 is loaded in the center of the support 110. And a pressure slab detection device 120 for detecting whether or not bending is installed, the pressure slab detection device 120 has a cylinder piston 124 at an inner surface of the cylinder cover 122 as shown in FIG. 4. The sensor 129, 129 ′ is installed to the sensor fixing bracket 128 installed through the spring 126 and fixed by welding at one lower end of the cylinder cover 122.

In addition, the outer surface of the frame 130, the power control box 140 for supplying power and control of each device constituting the present invention, and selects automatic and semi-automatic, manual, work method, driving with a moving speed adjustment dial The panel 150 and the oxygen and gas control panel 160 are provided.

As shown in FIG. 5, the oxygen and gas control panel 160 is provided with valves 162 and 162 ′ in each of oxygen and gas lines 161 and 161 ′, and each line 161 ( 161 ', there are pressure gauges 163 and 163', and the gas line 161 'is supplied separately to the ignition and the cutting gas, the pressure regulating valves 164'a and 164'b, the solenoid valve 165. 'a) 165'b and flashback arrestors 166'a and 166'b which prevent flashback are respectively connected.

Oxygen supplied from the oxygen line 161 is divided into high pressure, medium pressure, and low pressure, and pressure control valves 164a, 164b, 164c, and solenoid valves 165a, 165b (for adjusting the pressure in each line) 165c and flashback arrestors 166a, 166b and 166c are sequentially connected to each of the lines of the gas torch crater 510 to be described later to supply preheated oxygen, cutting oxygen and fin removing oxygen.

The track part 200 has a pair of left and right rail holders 210 having an 'I'-shaped cross section attached to the upper end of the outer surface of the frame 130 by welding or the like. The driving rail 220 is attached to the upper surface, and the driving rack 230 is attached to the inner upper end of the rail holder 210.

In addition, sensors 240 and 240 ′ detecting the position of the traveling device unit are provided at one side of the outer surface of the rail holder 210.

As shown in FIG. 6, the traveling device unit 300 has a pinion 330 that rotates in engagement with the traveling rack 230 of the track unit 200, and is attached to both left and right ends of the rotating shaft 320. A driving motor 340 having an operation of a rotating shaft and a brake function is installed at the center thereof, and a reduction gear 350 connected to the rotating shaft 320 is installed at the front and rear of the driving motor 340 to reduce the gear at the bottom of the main body 310. 350. The upper surface is attached by welding or the like.

In addition, driving wheels 360 are provided at right and left ends of the bottom of the main body 310 by bearing blocks 362, respectively.

In addition, a sensor auxiliary stick 311 is installed on the front lower end of the main body 310 so that left and right pivoting is possible, and a sensor 312 for detecting the end of the slab 10 is attached to an upper end of the sensor auxiliary stick 311. At the bottom, a weight 313 is attached to the bottom, and an anti-shake magnet 314 for preventing shaking of the sensor auxiliary stick 311 is attached.

In addition, the upper surface of the main body 310 is provided with a pair of transverse rails 316) and sensors 318 and 318 ', respectively, to detect the position of the body 410 of the traverse unit 400, which will be described later. Together, the body 412 is to be prevented from being separated from the transverse rail 316, the transverse rack 370 is attached to the rear of the main body 310.

As shown in FIG. 7, the traverse device unit 400 has a traverse motor having a brake function formed at a distal end thereof by a pinion 412 rotating in engagement with a transverse rack 370 attached to one outer surface of the main body 310. 414 is provided at the side of the body 410, and the transverse wheel 416 is provided at the bottom edge of the body 410 by the bearing block 418, respectively.

In addition, a wheel protection cover 420 having a welding structure and a sensor protection bar 422 are bolted to one outer surface of the body 410, and a sensor protection roll at the tip of the sensor protection bar 422. 424) is installed.

Meanwhile, as shown in FIG. 8, the gas torch crater 500 installed on the upper surface of the body 410 has a gas torch crater 510 attached to one side of the connecting plate 520. An uniaxial rack 542 and a guider are installed through the angle adjusting handle 530, the short axis 540, and the guider 550 to determine the flame spraying direction of the 510, and formed on one outer surface of the short axis 540. The height of the gas torch crater 510 is adjusted through the vertical adjustment handle 552 and the single-axis pinion 554 installed in the 550.

In addition, the pin removing nozzle 522 is attached to the other side of the connecting plate 520, so that by-pressure oxygen is injected to burn off by-products that may remain during slab burring.

The gas torch crater 510 mixes low pressure oxygen and gas to preheat the burr 12 of the slab 10 and is melted by high pressure oxygen. The burr 12 is formed at one upper edge of the body 410. The sensor 420 for detecting the end of the slab 10 in the process of sensing and melting the position of the slab 10 for preheating of the slab 10 is installed by the sensor protective cover 430.

Oxygen and gas supplied from the oxygen and gas control panel 160 is connected to each line and hose of the gas torch unit 500, the oxygen, gas hose and each sensor power cable is a trolley type travel device unit It is installed so as not to interfere with the movement of the 300 and the traverse device unit 400.

In the drawings, reference numeral 170 denotes a support section steel, 180 denotes a cooling stand for preventing air from being deformed by the heat of the slab when the slab is seated on the upper surface of the support, and 250 is a locking plate for preventing the departure of the traveling unit. .

Hereinafter, the operation of the present invention having the configuration as described above.

As shown in Figure 6 and 7, when there is a slab 10 without burr, if the slab 10 is placed on the upper surface of the support 110 of the slab support body portion 100 using a ceiling crane While the cylinder piston 124 of the pressure-type slab detection device 120 installed in the center of the support 110 is pressed by the weight of the slab 10, the two sensors 129 and 129 'are detected and the slab (10) Whether it is charged or not.

At this time, when the sensor 129 is detected, and the sensor 129 'is not detected, it is determined as the slab bending and an alarm alarm is generated in the operation panel 150 to inform the worker.

When the slab 10 is detected by the pressure-type slab detection device 120, the traveling unit 300 which is normally located at the position A of FIG. 9 on the sensors 240 and 240 'of the rail holder 210 is usually. The main motor 310 is set on the driving panel 150 while the pinion 330 is engaged with the driving rack 230 of the track part 200 by the operation of the driving motor 340 and the rotation of the rotating shaft 320. The body 310 moves smoothly without load by moving to the A 'position as a speed, and riding the upper surface of the travel rail 220 of the track part 200 through the travel wheel 360.

When the slab 10 is not detected by the sensor 312 attached to the sensor auxiliary stick 311 while the traveling device 300 moves, the power supply to the traveling motor 340 is stopped and the slab 10 is stopped. At the end, the traveling unit 300 is positioned, and the position of the traveling unit 300 is fixed by the brake function of the reducer 350 and the traveling motor 340.

Thereafter, the operator operates the shaft 540 up and down through the shaft pinion 554 and the shaft rack 542 by turning the vertical adjustment handle 552 of the gas torch 500 installed above the traverse unit 400. The height of the gas torch crater 510 is adjusted, and the flame spraying direction of the gas torch crater 510 is adjusted by turning the angle adjusting handle 530.

On the other hand, the pinion 412 is operated by the transverse motor 414 of the traverse device unit 400, which is normally located at the position B in FIG. 9, on the sensor 318 'installed on the upper surface of the main body 310. It is rotated in engagement with the transverse rack 370 of the), the transverse wheel 416 rides on the upper surface of the transverse rail 316, the body 410 is smoothly set to the operating panel 150 without load as a speed When the slab 10 is detected by the sensor 420 installed in the upper portion of the body 410 while moving to the B 'position, the power supply to the traverse motor 414 is preheated time adjusting dial of the operation panel 150. Interrupted by the time adjusted in.

At this time, the flame by the ignition gas of the gas torch crater 510 of the gas torch unit 500 is already injected, and the gas torch crater 510 is opened by opening a solenoid valve of preheating gas and low pressure oxygen in the gas torch crater 510. Through the mixed injection, the ignition gas solenoid valve is closed to preheat the burr of the slab 10.

After a predetermined time elapsed adjusted to the preheating time adjustment dial, high-pressure oxygen is injected to start melting, and the transverse device unit 400 passes after the preheating time adjusted to the preheating time adjustment dial of the operation panel 150 has elapsed. The power supply to the motor 414 is restarted and moved to the position B ′ of FIG. 9, and at the same time, the heavy-pressure oxygen is injected from the pin removing nozzle 522 to burn off the molten portion of the molten portion and burned out. Cleaned up.

On the other hand, during the movement of the traverse unit 400, the sensor protection bar 422 pushes the sensor auxiliary stick 311 installed in the main body 310 of the traveling unit 300 to rotate downwards, the ratio of the burr to be melted The sensor 312 is protected from the product or the melt scale (oxide film), and is smoothly operated as guided by the sensor protection roll 424.

When the slab 10 is not detected by the sensor 420 while the traverse unit 400 moves, the traverse unit 400 stops cutting and stops, and then reverses in the direction B of FIG. ') Is stopped when the sensor auxiliary stick 311 is fixed by the anti-shake magnet 314 in the original position again by the weight 313 while the sensor protection bar 422 is reversed, the traveling device The unit 300 is detected by the sensors 240 and 240 'while moving in the direction A of FIG. 9 and stopped.

In this way, the slab 10 from which burrs are removed is transferred to a later process.

The sensor 318, which is not described in the drawing, has the same function as the sensor 318 ′ when the traverse device 400 is installed on the opposite side of the sensor auxiliary stick 311.

As described above, all the operations are performed in one cycle, and when the deburring operation of the slab 10 is completed, the cylinder piston 124 of the pressure-type slab detection device 120 as the overhead crane lifts the slab 10. ) Is raised again by the action of the spring 126 and ends as the detection of the sensors 129 and 129 'is terminated.

As described above, according to the present invention, after preheating the burrs remaining or adhered to the head and tail of the slab bottom, it is possible to remove them cleanly, thereby preventing fatigue and workability deterioration due to manual removal of the residual burrs, Work time is shortened, safety accidents are prevented, work logistics flow is smooth, and slab quality and rolling coil quality are improved.

Although the technical idea of the slab burr removing device of the present invention has been described with the accompanying drawings, this is illustrative of the best embodiment of the present invention and is not intended to limit the present invention.

In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (2)

In the slab burr removal device for removing the burr stuck to the bottom of the slab transported by the roller of the continuous casting line, A slab support body part 100 on which the slab 10 is placed; A track part 200 attached to the slab support body part 100; A traveling device unit 300 in which the pinion 330 is engaged with the traveling rack 230 of the track part 200 by the rotation of the rotation shaft 320 by the traveling motor 340 installed in the main body 310; The pinion 412 of the traverse motor 414 installed in the body 410 engages with the traverse rack 370 of the traveling unit 300 to rotate and the traverse unit 400; A gas torch unit installed in the body 410 of the traverse device unit 400 to remove and remove the burr 12 of the slab 10 by oxygen and gas supplied from the oxygen and gas control panel 160 ( Slab burr removing apparatus, characterized in that comprises a 500). According to claim 1, wherein the support 110 of the slab support body portion 100 is a pressure-type slab detection device 120 for detecting whether the slab 10 is charged and bent is provided Slab bur remover.