Converter oxygen lance repairing equipment and repairing method thereof

Abstract

The converter oxygen lance repairing equipment comprises a locking mechanism used for fixing an oxygen lance body, transverse moving mechanisms are arranged on the two sides of the locking mechanism in the X-axis direction, lifting mechanisms are arranged on the transverse moving mechanisms, and the lifting mechanisms can move left and right along with the transverse moving mechanisms in the X-axis direction; cutting mechanisms are arranged on the lifting mechanisms and can move up and down along the Z-axis direction along with the lifting mechanisms; the transverse moving mechanism drives the cutting mechanism to move leftwards and rightwards in the X-axis direction to be close to or away from the oxygen lance body. The cutting mechanism can feed or retract in the X-axis direction, and the lifting mechanism is provided with a hydraulic expansion device used for peeling off cut cold steel on the oxygen lance body. On one hand, the milling depth can be controlled, and damage to the oxygen lance body is avoided; and on the other hand, the oxygen lance cold steel removing efficiency can be greatly improved, the situation that the number of oxygen lances is not enough during converter blowing is avoided, and the construction danger is reduced. In addition, in the operation process, energy medium consumption is not needed, and economic benefits are remarkable.

Description

Technical Field

[0001] The invention relates to the technical field of repair tooling, and in particular to a converter oxygen lance repair device and a repair method thereof. Background Art

[0002] The oxygen lance is one of the main process equipment in oxygen converter steelmaking. Its performance characteristics directly affect the smelting effect and blowing time, thus affecting the quality and output of steel. When the oxygen lance is in use, cold steel (i.e., a steel block in a solidified state) is easily generated on the outer surface of the oxygen lance, which can easily deteriorate the heat dissipation of the oxygen lance, and the oxygen lance nozzle is easily burned, and it can also make it difficult to raise and lower the oxygen lance. Therefore, in order to ensure the normal use of the oxygen lance, it is necessary to cut and eliminate the cold steel on the oxygen lance.

[0003] At present, oxygen lance cold steel is removed by manual gas cutting. The operator uses a cutting gun to cut two cracks in the cold steel on the left and right sides of the oxygen lance, and then peels it off by prying it with a crowbar. Cutting cold steel in this way results in long operation time and high risk. Operators need to face the risk of splashing slag from gas cutting at all times, and also pay attention to the risk of cold steel falling on the upper part of the oxygen lance. This operation method requires high operating skills of the operator. If you are not careful, the oxygen lance body is easy to be damaged during the cold steel removal process, causing the oxygen lance to leak and other faults. In addition, this removal method requires a large number of people. On average, one oxygen lance requires 3 people to cut continuously for about 3 hours. At the same time, the use of flame cutting to remove cold steel consumes a lot of energy, consumes a lot of gas energy and oxygen, and produces a lot of smoke and carbon dioxide.

[0004] The invention patent with application number 202111255158.X discloses a steelmaking converter oxygen lance repair device and a repair method thereof, the repair device includes an oxygen lance repair platform, on which a lance head insertion component and a lance body rotating component are provided; the lance head insertion component includes a workbench, on the top surface of which a guide rail arranged horizontally in the left and right directions is provided, and at the left end of the guide rail is provided a head for inserting the lance head into the left end of the oxygen lance body, and the head is driven to move horizontally along the guide rail by a driving component; a tire frame for supporting the lying oxygen lance body is provided on the oxygen lance repair platform; the lance body rotating component includes a support arm, which is fixedly connected to the right end of the oxygen lance body, and the support arm is driven to rotate by a power component. This patent realizes the replacement of the oxygen lance head and the repair welding of the oxygen lance body through the repair device, and does not involve cutting the cold steel on the oxygen lance body. Therefore, this patent cannot meet the demand for cleaning the cold steel attached to the oxygen lance body. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a converter oxygen lance repair device and a repair method thereof to reduce the labor intensity of operators, improve the cold steel removal efficiency, and better meet on-site operation needs.

[0006] The present invention proposes a converter oxygen lance repair device, comprising a locking mechanism for fixing an oxygen lance body, wherein the locking mechanism is provided with a transverse movement mechanism on both sides along the X-axis direction, and the transverse movement mechanism is provided with a lifting mechanism, and the lifting mechanism can move left and right along the X-axis direction with the transverse movement mechanism; the lifting mechanism is provided with a cutting mechanism, and the cutting mechanism can move up and down along the Z-axis direction with the lifting mechanism; the transverse movement mechanism drives the cutting mechanism to move left and right along the X-axis direction to approach or move away from the oxygen lance body; the cutting mechanism can advance or retreat along the X-axis direction; the lifting mechanism is provided with a hydraulic expansion device, which is used to peel off the cold steel cut on the oxygen lance body.

[0007] Preferably, the locking mechanism comprises a plurality of clamping devices for clamping the oxygen lance body, and the plurality of clamping devices are all installed on the steel structure workshop and distributed along the Z-axis direction.

[0008] Preferably, the clamping device includes a first clamping part and a second clamping part for clamping the oxygen lance body, and the first clamping part and the second clamping part are both adapted to the outer shape of the oxygen lance body; the first clamping part is connected to a first top fixture, and the second clamping part is connected to a second top fixture, the first top fixture and the second top fixture are both fixed on a steel structure building, and the first top fixture and the second top fixture are arranged opposite to each other; under the action of the first top fixture and the second top fixture, the first clamping part and the second clamping part move toward each other to clamp the oxygen lance body.

[0009] Preferably, the locking mechanism further comprises a supporting device, the supporting device comprises a platform placed on the ground, the platform is fixedly provided with a third top tool along the Z-axis direction, the third top tool is provided with a tray, and the tray is provided with a plurality of bosses which can be inserted into the oxygen gun body.

[0010] Preferably, the transverse movement mechanism includes a transverse movement trolley and a locking device, the locking device is fixed on the ground at the bottom of the transverse movement trolley, and a slot is provided at the bottom of the transverse movement trolley; the locking device includes a fourth top tool, and a locking piece is provided at the end of the top rod of the fourth top tool, and the locking piece is adapted to the locking slot.

[0011] Preferably, the lifting mechanism includes a lifting platform, a column and a first driving device, the column is fixed on the transverse movement trolley, the lifting platform is arranged on the column, the first driving device is arranged on the lifting platform, and the first driving device can drive the lifting platform to move up and down along the Z-axis direction of the column.

[0012] Preferably, the cutting mechanism includes a guide rail fixed on the lifting platform, and the guide rail is arranged along the X-axis direction; a cutting device is slidably provided on the guide rail, and a detection device for measuring the thickness of cold steel is provided on the cutting device; a second driving device is provided at the end of the guide rail, and the second driving device can drive the cutting device to reciprocate along the guide rail.

[0013] The present invention also provides a method for repairing a converter oxygen lance repair device, comprising the following steps:

[0014] In the preparation stage, the oxygen lance body to be repaired is hoisted to a designated location by a hoisting device, and then the transverse movement mechanism is driven close to the oxygen lance body, and the positions of the cutting mechanism and the oxygen lance body are adjusted so that the oxygen lance body is located at the center between the transverse movement mechanisms, and then the transverse movement mechanism is locked;

[0015] In the locking stage, the supporting device is started to fix and support the oxygen lance body, the supporting device drives the oxygen lance body to move upward to a predetermined position, and then the clamping device is started to lock the oxygen lance body;

[0016] In the calibration stage, the tool on the cutting mechanism and the cold steel to be cut on the oxygen lance body are aligned through testing and calibration; then, the interference between the clamping device and the lifting mechanism is checked and eliminated;

[0017] In the cutting stage, the cutting mechanism is driven by the lifting mechanism to cut the cold steel on the oxygen lance body, so that two cracks are formed on the left and right sides of the oxygen lance body, and then the expansion device is extended into the cracks to peel off the cut cold steel.

[0018] Preferably, the cutting stage specifically includes the following steps: aligning the cutter on the cutting mechanism with the center of the cold steel to be cut on the oxygen gun body, and then clearing the digital display of the control console of the cutting mechanism; after the clearing is completed, moving the cutting mechanism to a safe position through the lifting mechanism;

[0019] The cutting mechanism cuts from both sides of the oxygen lance body according to the parameters on the digital display of the operating table, and the lifting mechanism drives the cutting mechanism to move downward along the Z-axis direction for cutting until it reaches the limit position and stops cutting; then the expansion device extends into the cracks on both sides of the oxygen lance body to peel off the cold steel after cutting;

[0020] Repeat the above cutting steps until the cold steel is completely removed.

[0021] As described above, the converter oxygen lance repair device and the repair method thereof according to the present invention have the following beneficial effects:

[0022] The present invention drives the lifting mechanism to approach the oxygen gun body to be repaired through the transverse movement mechanism, so that the oxygen gun body is located at the center position between the transverse movement mechanism components, and the locking mechanism is started to lock the oxygen gun body. The positional relationship between the cutting mechanism and the oxygen gun body to be repaired is adjusted so that the cutting mechanism is located at the center position of the cold steel on the oxygen gun body, and the cutting mechanism is started. The lifting mechanism drives the cutting mechanism to automatically cut from top to bottom along the Z-axis direction of the oxygen gun body, and the thickness of the cold steel is detected at all times to control the cutting depth. After the cutting mechanism automatically completes the cutting, the cold steel on the oxygen gun body is manually removed, and the above steps are repeated until the cold steel is completely removed. On the one hand, the present invention can control the milling depth to avoid damage to the oxygen gun body; on the other hand, the present invention can greatly improve the efficiency of removing the cold steel of the oxygen gun, avoid the situation of insufficient number of oxygen guns during converter blowing, and reduce the construction risk. In addition, during the operation process, the present invention does not require the consumption of energy media, and the economic benefits are significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A front view of a converter oxygen lance repairing device is provided for an embodiment of the present invention.

[0024] Figure 2 A left view of a converter oxygen lance repairing device is provided for an embodiment of the present invention.

[0025] Figure 3 A top view of a converter oxygen lance repair device is provided for an embodiment of the present invention.

[0026] Figure 4 A schematic diagram of a clamping device is provided for an embodiment of the present invention.

[0027] Figure 5 A schematic diagram of a supporting device is provided for an embodiment of the present invention.

[0028] Figure 6 A schematic diagram of a transverse movement mechanism is provided for an embodiment of the present invention.

[0029] Figure 7 A schematic diagram of a lifting mechanism is provided for an embodiment of the present invention.

[0030] Figure 8 A schematic diagram of a cutting mechanism is provided for an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 100, oxygen gun body; 200, locking mechanism; 210, clamping device; 211, first clamping part; 212, second clamping part; 213, first top tool; 214, second top tool; 220, supporting device; 221, platform; 222, third top tool; 223, tray; 224, boss; 300, transverse mechanism; 310, transverse trolley; 311, slot; 320, locking device; 321, fourth top tool; 322, locking piece; 400, lifting mechanism; 410, lifting platform; 420, column; 430, first driving device; 500, slide rail; 600, cutting mechanism; 610, guide rail; 620, cutting device; 630, second driving device. DETAILED DESCRIPTION

[0033] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0035] Embodiment 1

[0036] like Figure 1-8As shown, an embodiment of a converter oxygen lance repair device includes a locking mechanism 200 for fixing an oxygen lance body 100, and transverse mechanisms 300 are provided on both sides of the locking mechanism 200 along the X-axis direction, and a lifting mechanism 400 is provided on the transverse mechanism 300. One end of the lifting mechanism 400 away from the transverse mechanism 300 is slidably set on a slide rail 500 on a steel structure workshop, and the lifting mechanism 400 can move left and right along the X-axis direction with the transverse mechanism 300; a cutting mechanism 600 is provided on the lifting mechanism 400, and the cutting mechanism 600 can move up and down along the Z-axis direction with the lifting mechanism 400; the transverse mechanism 300 drives the cutting mechanism 600 to move left and right along the X-axis direction to approach or move away from the oxygen lance body 100; the cutting mechanism 600 can advance or retreat along the X-axis direction, thereby realizing cutting of the cold steel on the oxygen lance body 100; the lifting mechanism 40 is provided with a hydraulic expansion device (not shown in the figure) for stripping off the cut cold steel on the oxygen lance body 100. The hydraulic expansion device includes a pair of expansion arms and a hydraulic device, the expansion arms are connected to the hydraulic expansion device, and the hydraulic device can drive the expansion arms to open or close to both sides. The hydraulic expansion device cooperates with the cutting mechanism to peel off the cold steel on the oxygen gun body 100 in a specific direction, preventing the cold steel from falling off in an unspecified direction, thereby improving the safety of the operation.

[0037] Furthermore, the locking mechanism 200 includes two clamping devices 210 for clamping the oxygen lance body 100. Each clamping device 210 is installed on the steel structure workshop, and the two clamping devices 210 are distributed up and down along the Z-axis direction. Through the clamping of the two clamping devices 210 distributed up and down, the oxygen lance body 100 can be clamped in the Z-axis direction to prevent the oxygen lance body 100 from shaking during the cutting of cold steel, thereby avoiding damage to the tool on the cutting mechanism 600, and playing a role in installation protection.

[0038] like Figure 4 As shown, the clamping device 210 includes a first clamping portion 211 and a second clamping portion 212 for clamping the oxygen lance body 100, and the first clamping portion 211 and the second clamping portion 212 are both adapted to the shape of the oxygen lance body; the first clamping portion 211 is connected to a first top fixture 213, and the second clamping portion 212 is connected to a second top fixture 214, and the first top fixture 213 and the second top fixture 214 are both fixed on the steel structure workshop, and the first top fixture 213 and the second top fixture 214 are arranged opposite to each other; under the action of the first top fixture 213 and the second top fixture 214, the first clamping portion 211 and the second clamping portion 212 move toward each other to clamp the oxygen lance body 100.

[0039] Furthermore, the first top tool 213 and the second top tool 214 can be linear top tools such as locking oil cylinders or air cylinders, and the model is Φ40mm×S400. The inner diameter of the first clamping part 211 and the second clamping part 212 in the clamping state is Φ357mm.

[0040] When in use, the piston rods of the first top fixture 213 and the second top fixture 214 are in a retracted state, and the first clamping portion 211 and the second clamping portion 212 are in a separated state. When the oxygen lance body to be repaired is hoisted to the repair position, the piston rods of the first top fixture 213 and the second top fixture 214 extend, thereby driving the first clamping portion 211 and the second clamping portion 212 to clamp the oxygen lance body 100.

[0041] like Figure 5 As shown, the locking mechanism 200 also includes a supporting device 220, which includes a platform 221 placed on the ground. The platform 221 is fixedly provided with a third top tool 222 along the Z-axis direction. The third top tool 222 is provided with a tray 223. The tray 223 is provided with a plurality of bosses 224 that can be inserted into the oxygen gun body 100 for fixing and supporting the oxygen gun body 100.

[0042] When in use, the third top tool 222 is lifted upward to the first clamping part 211 and the second clamping part 212 for clamping and locking, which can effectively prevent the oxygen gun body 100 from positional displacement during the process of cutting cold steel. The third top tool 222 can use an electro-hydraulic push rod with a model of Φ70mm×S400 (25MPa).

[0043] like Figure 6 As shown, the transverse mechanism 300 includes a transverse trolley 310 and a locking device 320. The locking device 320 is fixed on the ground at the bottom of the transverse trolley 310. The bottom of the transverse trolley 310 is provided with a slot 311. The locking device 320 includes a fourth top tool 321. The end of the top rod of the fourth top tool 321 is provided with a locking member 322. The locking member 322 is adapted to the locking slot 311. The fourth top tool 321 can be a hydraulic cylinder, and the hydraulic cylinder model is: Φ80×S400.

[0044] Furthermore, the transverse trolley 310 is arranged on the vehicle track, and the vehicle track is arranged along the X-axis direction. Each transverse trolley 310 is provided with two transverse motors, each transverse motor is equipped with a reducer, and each reducer is installed with a sprocket. The sprocket and the wheel on one side of the transverse trolley are connected by a chain, so that the transverse trolley 310 moves along the vehicle track through a chain drive. The transverse trolley 310 is provided with a sensor for detecting the position of the slot of the transverse trolley 310. Among them, the sprocket adopts a double-row sprocket, the number of teeth of the active sprocket Z=12, and the number of teeth of the transmission sprocket Z=21; the power of the transverse motor adopts 1.2KW; the moving speed of the transverse trolley is 2m / min.

[0045] When in use, when the oxygen gun body is hoisted to the gun repair position, the lateral movement trolley 310 is started to move to the specified position, and when the sensor detects that the position of the card slot is directly above the locking member 322, the lateral movement trolley 310 stops moving. Then, the locking device 320 is started, and the push rod of the fourth top tool 321 extends to drive the locking member 322 to insert into the card slot 311, locking the lateral movement trolley, which can effectively prevent the lateral movement trolley 310 from moving left and right during the cold steel cutting process.

[0046] like Figure 7 As shown, the lifting mechanism 400 includes a lifting platform 410, a column 420 and two first driving devices 430. The column 420 is fixed on the transverse movement trolley 310, the lifting platform 410 is arranged on the column 420, and the column 420 runs through the lifting platform 410; the first driving device 430 is arranged on the lifting platform 410, and the first driving device 430 can drive the lifting platform 410 to move up and down along the Z-axis direction of the column 420.

[0047] Furthermore, two sets of racks are arranged on the column 420 at intervals, and each rack extends to both ends of the column 420 along the Z-axis direction. Each first driving device 430 uses a driving motor, and each driving motor is connected to a reduction box, which is installed on the lifting platform 420. The reduction box is connected to the lifting gear, and each set of racks is meshed with a lifting gear to ensure that the gears are balanced during the lifting process. The driving motor drives the lifting gear to rotate through the reduction box, so that the lifting platform 420 can move up or down along the Z-axis direction. The lifting speed of the lifting platform 420 is 0.15m / min.

[0048] Furthermore, a pulley is arranged at the top of the rack on the column, and the pulley is embedded in the inner groove slide rail to prevent the lifting platform 420 from causing the overall center of gravity of the lifting mechanism to be too high when placed on the top of the column 420, causing the lifting mechanism to shake.

[0049] like Figure 8 As shown, the cutting mechanism 600 includes a guide rail 610 fixed on the lifting platform 410, and the guide rail 610 is set along the X-axis direction; a cutting device 620 is slidably provided on the guide rail 610, and a detection device for measuring the thickness of cold steel is provided on the cutting device 620; a second driving device 630 is provided at the end of the guide rail 610, and the second driving device 630 can drive the cutting device 620 to move back and forth along the guide rail.

[0050] Furthermore, the cutting device 620 is connected to the guide rail via a screw nut pair, and a feed motor is provided at one end of the screw nut pair in the opposite direction of the feeding of the cutting device. The feed motor drives the screw nut pair to drive the cutting device 620 to move along the guide rail. The cutting device can adjust the tool speed during the cutting process. The tool can be a milling cutter with a blade length of 70mm and a blade diameter of 12mm. The motor in the cutting device 620 uses P=2KW, a rated speed of 2800r / min, and a maximum cutting speed of 120mm / min.

[0051] When in use, the depth of the cold steel on the oxygen gun body is measured in real time through the detection device, and the feed motor is continuously adjusted according to the depth of the cold steel, thereby controlling the cutting depth of the tool to avoid damage to the oxygen gun body.

[0052] Furthermore, the lifting platform 410 is provided with a cooling device (not shown in the figure), which includes a nozzle and a recovery pool. The nozzle is arranged on the lifting platform 410, and the recovery pool is arranged at the bottom of the nozzle to collect and recover cooling water. The cooling water can be connected from the existing cooling water pipe through a hose to reduce cost investment and save equipment space.

[0053] A method for repairing a converter oxygen lance repair device according to the above embodiment includes the following steps:

[0054] In the preparation stage, the oxygen lance body to be repaired is hoisted to the designated location by the hoisting equipment, and then the transverse mechanism 300 is driven close to the oxygen lance body 100. The position of the cutting mechanism 600 and the oxygen lance body 100 is adjusted so that the oxygen lance body 100 is located at the center between the transverse mechanism 300, and the horizontal deviation should be no more than 10mm, and then the transverse mechanism 300 is locked. Among them, the highest point of the cold steel on the oxygen lance body 100 is lower than the highest point of the cutting device, ensuring that the cold steel at the top of the oxygen lance body can be cut.

[0055] In the locking stage, the support device 220 is started to fix and support the oxygen lance body 100, and the support device 220 drives the oxygen lance body 100 to move upward to a predetermined position to prevent the oxygen lance body 100 from moving up and down along the Z-axis direction during the process of cutting cold steel. Then the clamping device 210 is started to lock the oxygen lance body 100 to prevent the oxygen lance body 100 from shaking in the horizontal direction during the process of cutting cold steel.

[0056] During the calibration phase, the tool on the cutting mechanism 600 is aligned with the cold steel to be cut on the oxygen gun body 100 through testing and calibration. Then, the interference between the clamping device 210 and the lifting mechanism 400 is checked and eliminated to avoid collision between the clamping device 210 and the lifting mechanism 400 when cutting the cold steel. The alignment of the tool on the cutting device is tested by a jog test. If the position of the tool and the cold steel is offset, the position between the two is appropriately adjusted to align the tool with the center of the cold steel.

[0057] During the cutting stage, the cutter on the cutting mechanism 600 is aligned with the cold steel to be cut on the oxygen gun body 100, and then the digital display on the control console of the cutting mechanism 600 is reset; after the reset is completed, the cutting mechanism 600 is moved to a safe position through the lifting mechanism 400;

[0058] The cutting mechanism 600 advances from both sides of the oxygen gun body 100 according to the parameters on the digital display of the operating table, and advances 10mm at the zeroing position. The lifting mechanism drives the cutting mechanism to move downward along the Z-axis direction for cutting until it reaches the limit position and stops cutting. Then the expansion arms of the hydraulic expansion device are extended into the cracks on both sides of the oxygen gun body 100, and the cold steel after cutting is peeled off by opening the expansion arms.

[0059] Repeat the above cutting steps until the cold steel is completely removed.

[0060] Embodiment 2

[0061] The second embodiment is substantially the same as the first embodiment. The biggest difference between the second embodiment and the first embodiment is that the transverse movement mechanism 300 includes a linear module and a transverse movement base. The transverse movement base is fixed on the slider of the linear module and can move along the linear module. A scissor-type, kneeling column or chain sprocket lifting mechanism 400 can be fixedly installed on the transverse movement base. A cutting mechanism 600 is provided on the scissor-type, kneeling column or chain sprocket lifting mechanism.

[0062] When in use, the slider of the linear module drives the lateral base to move, thereby driving the lifting mechanism to move to a predetermined position. Then, the cutting mechanism is started, and the lifting mechanism 400 drives the cutting mechanism 600 to cut the cold steel on the oxygen gun body 100 from top to bottom along the Z axis, so that two cracks are formed on the left and right sides of the oxygen gun body. The hydraulic expansion device penetrates into the cracks and peels off the cut cold steel.

[0063] In summary, the present invention drives the lifting mechanism to approach the oxygen gun body to be repaired through the transverse movement mechanism, so that the oxygen gun body is in the center position between the transverse movement mechanism components, and the locking mechanism is started to lock the oxygen gun body. The positional relationship between the cutting mechanism and the oxygen gun body to be repaired is adjusted so that the cutting mechanism is located at the center position of the cold steel on the oxygen gun body, and the cutting mechanism is started. The cutting mechanism is driven by the lifting mechanism to automatically cut from top to bottom along the Z-axis direction of the oxygen gun body, and the thickness of the cold steel is detected at all times to control the cutting depth. After the cutting mechanism automatically completes the cutting, the cold steel on the oxygen gun body is manually removed, and the above steps are repeated until the cold steel is completely removed. On the one hand, the present invention can control the milling depth to avoid damage to the oxygen gun body; on the other hand, the present invention can greatly improve the efficiency of removing the cold steel of the oxygen gun, avoid the situation of insufficient number of oxygen guns during converter blowing, and reduce the construction risk. In addition, during the operation process, the present invention does not require the consumption of energy media, and the economic benefits are significant.

[0064] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A converter oxygen lance repair device, characterized in that: The invention comprises a locking mechanism (200) for fixing an oxygen lance body (100), wherein the locking mechanism (200) is provided with a transverse movement mechanism (300) on both sides along the X-axis direction, and the transverse movement mechanism (300) is provided with a lifting mechanism (400), and the lifting mechanism (400) can move left and right along the X-axis direction along with the transverse movement mechanism (300); the lifting mechanism (400) is provided with a cutting mechanism (600), and the cutting mechanism (600) can move up and down along the Z-axis direction along with the lifting mechanism (400); the transverse movement mechanism (300) drives the cutting mechanism (600) to move left and right along the X-axis direction to approach or move away from the oxygen lance body (100); the cutting mechanism (600) can advance or retreat along the X-axis direction; the lifting mechanism (400) is provided with a hydraulic expansion device, which is used to peel off the cold steel cut on the oxygen lance body (100).

2. The converter oxygen lance repair equipment according to claim 1, characterized in that: The locking mechanism (200) comprises a plurality of clamping devices (210) for clamping the oxygen lance body (100); the plurality of clamping devices (210) are all installed on the steel structure workshop and are distributed along the Z-axis direction.

3. The converter oxygen lance repair equipment according to claim 2, characterized in that: The clamping device (210) comprises a first clamping portion (211) and a second clamping portion (212) for clamping the oxygen lance body (100); the first clamping portion (211) and the second clamping portion (212) are both adapted to the outer shape of the oxygen lance body; the first clamping portion (211) is connected to a first top tool (213), the second clamping portion (212) is connected to a second top tool (214), the first top tool (213) and the second top tool (214) are both fixed on a steel structure workshop, and the first top tool (213) and the second top tool (214) are arranged opposite to each other; under the action of the first top tool (213) and the second top tool (214), the first clamping portion (211) and the second clamping portion (212) move towards each other to clamp the oxygen lance body (100).

4. The converter oxygen lance repair equipment according to claim 2, characterized in that: The locking mechanism (200) further comprises a supporting device (220), wherein the supporting device (220) comprises a platform (221) placed on the ground, wherein a third top tool (222) is fixedly provided on the platform (221) along the Z-axis direction, wherein a tray (223) is provided on the third top tool (222), and wherein a plurality of bosses (224) which can be inserted into the oxygen lance body (100) are arranged on the tray (223).

5. The converter oxygen lance repairing equipment according to claim 1, characterized in that: The transverse movement mechanism (300) includes a transverse movement trolley (310) and a locking device (320), wherein the locking device (320) is fixed on the ground at the bottom of the transverse movement trolley (310), and a card slot (311) is provided at the bottom of the transverse movement trolley (310); the locking device (320) includes a fourth top tool (321), and a locking member (322) is provided at the end of the top rod of the fourth top tool (321), and the locking member (322) is adapted to the locking card slot (311).

6. The converter oxygen lance repairing equipment according to claim 5, characterized in that: The lifting mechanism (400) includes a lifting platform (410), a column (420) and a first driving device (430); the column (420) is fixed on the transverse moving trolley (310); the lifting platform (410) is arranged on the column (420); the first driving device (430) is arranged on the lifting platform (410); and the first driving device (430) can drive the lifting platform (410) to move up and down along the Z-axis direction of the column (420).

7. The converter oxygen lance repairing equipment according to claim 6, characterized in that: The cutting mechanism (600) includes a guide rail (610) fixed on the lifting platform (410), and the guide rail (610) is arranged along the X-axis direction; a cutting device (620) is slidably arranged on the guide rail (610), and a detection device for measuring the thickness of cold steel is arranged on the cutting device (620); a second driving device (630) is arranged at the end of the guide rail (610), and the second driving device (630) can drive the cutting device (620) to move back and forth along the guide rail.

8. The repair method of converter oxygen lance repair equipment according to any one of claims 1 to 7, characterized in that: The following steps are involved: In the preparation stage, the oxygen lance body to be repaired is hoisted to a designated location by a hoisting device, and then the transverse movement mechanism (300) is driven close to the oxygen lance body (100), and the positions of the cutting mechanism (600) and the oxygen lance body (100) are adjusted so that the oxygen lance body (100) is located at the center position between the transverse movement mechanisms (300), and then the transverse movement mechanism (300) is locked; In the locking stage, the supporting device (220) is started to fix and support the oxygen lance body (100), the supporting device (220) drives the oxygen lance body (100) to move upward to a predetermined position, and then the clamping device (210) is started to lock the oxygen lance body (100); In the calibration phase, the tool on the cutting mechanism (600) and the cold steel to be cut on the oxygen lance body (100) are aligned through testing and calibration; then, the interference between the clamping device (210) and the lifting mechanism (400) is checked and eliminated; During the cutting stage, the cutting mechanism (600) is driven by the lifting mechanism (400) to cut the cold steel on the oxygen lance body (100) from top to bottom, so that two cracks are formed on the left and right sides of the oxygen lance body (100); then, the hydraulic expansion device is extended into the cracks to peel off the cut cold steel.

9. The repair method of converter oxygen lance repair equipment according to claim 8, characterized in that: The cutting stage specifically comprises the following steps: Align the cutter on the cutting mechanism (600) with the cold steel to be cut on the oxygen gun body (100), and then reset the digital display on the control panel of the cutting mechanism (600); after the reset is completed, move the cutting mechanism (600) to a safe position via the lifting mechanism (400); The cutting mechanism (600) cuts from both sides of the oxygen lance body (100) according to the parameters on the digital display of the operating table, and the lifting mechanism drives the cutting mechanism to move downward along the Z-axis direction for cutting until it reaches the limit position and stops cutting; then the hydraulic expansion device extends into the cracks on both sides of the oxygen lance body (100) to peel off the cold steel after cutting; Repeat the above cutting steps until the cold steel is completely removed.

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