An angle-adjustable coal oxygen gun clamping device and purge system

Abstract

The utility model belongs to the technical field of iron and steel metallurgy, and discloses an angle-adjustable coal oxygen gun clamping device and a purging system. The clamping device comprises a connecting base, a supporting assembly and a driving member installed on the supporting assembly. The connecting base is fixedly connected to the supporting assembly. One end of the supporting assembly is connected with a first clamping assembly for clamping a coal oxygen gun barrel, and the output end of the driving member is connected with a second clamping assembly for clamping the coal oxygen gun barrel. When the driving member drives the output end to move linearly, the coal oxygen gun barrel is driven to rotate around the first clamping assembly. The technical solution of the utility model can replace manual lifting of the coal oxygen gun barrel to adjust the purging height, save manpower, and realize automatic adjustment of the purging height of the coal oxygen gun barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of iron and steel metallurgy, in particular to an angle-adjustable coal-oxygen gun clamping device and a purge system. Background Art

[0002] In iron and steel metallurgical workshops, metal smelting furnaces are often needed to smelt metals at high temperatures. Ladles are one type of smelting furnaces. When smelting metal, the metal in the ladle is heated to form liquid metal, and then the ladle is turned over to pour out the liquid metal. The liquid metal can be used for subsequent production and processing procedures. The residual liquid metal will solidify on the inner wall of the ladle and adhere to the inner wall of the ladle to form residue, thereby affecting the purity of the ladle for metal smelting. Therefore, the ladle needs to be hot-repaired from time to time. The coal-oxygen lance is specially used for purging the bottom-blown bricks at the bottom of the ladle, and can burn off the residue on the bottom-blown bricks. The existing coal-oxygen lance purging is performed manually by operating a coal-oxygen lance cart. The coal-oxygen lance is mounted on the coal-oxygen lance cart, and the purging of different positions of the coal-oxygen lance is achieved by moving the position of the cart. However, when it is desired to purge the bottom-blown bricks in the height direction, the coal-oxygen lance needs to be manually lifted to a corresponding angle. It takes a lot of strength to lift a ten-meter-long coal-oxygen lance barrel from one end, which is not convenient for operators. In view of this, the utility model is proposed. Utility Model Content

[0003] In order to solve the problem that it is difficult to manually adjust the height direction of the coal oxygen lance for purging, the utility model provides an angle-adjustable coal oxygen lance clamping device and a purging system.

[0004] In order to solve the above technical problems, the utility model provides an angle-adjustable coal oxygen gun clamping device, the clamping device comprises a connecting base, a supporting assembly and a driving member installed on the supporting assembly, the connecting base is fixedly connected to the supporting assembly, one end of the supporting assembly is connected to a first clamping assembly for clamping the coal oxygen gun barrel, the output end of the driving member is connected to a second clamping assembly for clamping the coal oxygen gun barrel, and when the driving member drives the output end to move linearly, the coal oxygen gun barrel is driven to rotate around the first clamping assembly.

[0005] In an embodiment of the utility model, the first clamping assembly includes a hinged base plate, a first pipe clamp and hinged shafts fixed on both sides of the first pipe clamp, the hinged base plate is fixed on both sides of the width direction of the support assembly, the inner diameter of the first pipe clamp is adapted to the diameter of the coal oxygen gun barrel, and the hinged shaft is hingedly connected to the hinged base plate.

[0006] In an embodiment of the utility model, the second clamping assembly includes a second pipe hoop and a hinged base fixed on the second pipe hoop, the inner diameter of the second pipe hoop is adapted to the diameter of the coal oxygen gun tube, and the output end of the driving member is hingedly connected to the hinged base.

[0007] In an embodiment of the utility model, the clamping device also includes a guide plate vertically fixed on the support assembly, and the guide plate is provided with a limiting groove for vertical movement of the coal oxygen gun barrel, and the width of the limiting groove is adapted to the diameter of the coal oxygen gun barrel.

[0008] In an embodiment of the utility model, reinforcing rib plates are fixed on both sides of the width of the guide plate, and weight-reducing holes are opened on the reinforcing rib plates.

[0009] In an embodiment of the utility model, the support assembly includes square steel and reinforcing rib plates fixed to upper and lower sides of the square steel, and the reinforcing rib plates are provided with weight-reducing holes.

[0010] In an embodiment of the utility model, the support assembly further comprises an inclined support plate connected to the end of the square steel, and an articulated mounting seat to which the driving member is articulated is fixed on the inclined support plate.

[0011] In an embodiment of the utility model, the driving member includes any one of a pneumatic cylinder, a hydraulic cylinder, and an electric cylinder.

[0012] In order to solve the above technical problems, the utility model also provides a purge system, characterized in that the purge system includes a robot and the above clamping device, a connecting plate for connecting the connecting base is fixed on the robot, and the clamping device is connected to the robot through the connecting plate.

[0013] In an embodiment of the present utility model, the purge system further comprises a slide rail and a slide plate moving along the slide rail, and the robot is fixed on the slide plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By connecting the connecting base with the coal oxygen gun trolley, and clamping the coal oxygen gun barrel by the first clamping assembly and the second clamping assembly, the coal oxygen gun is driven by the driving member to rotate around the first clamping assembly, thereby achieving the adjustment of the purge height of the coal oxygen gun barrel, replacing manual lifting of the coal oxygen gun barrel for height adjustment, saving manpower, and realizing automatic adjustment of the coal oxygen gun barrel height. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the embodiments of the present utility model and constitute a part of the specification. Together with the following specific implementation methods, they are used to explain the embodiments of the present utility model, but do not constitute a limitation on the embodiments of the present utility model. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the clamping device provided in the embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of a partial explosion structure of the clamping device provided by an embodiment of the utility model;

[0019] Figure 3 yes Figure 2 A in the enlarged view;

[0020] Figure 4 yes Figure 2 The enlarged view of point B in the figure;

[0021] Figure 5 The force analysis simulation of the clamping device provided by the embodiment of the utility model Figure 1 ;

[0022] Figure 6 The force analysis simulation of the clamping device provided by the embodiment of the utility model Figure 2 ;

[0023] Figure 7 The force analysis simulation of the clamping device provided by the embodiment of the utility model Figure 3 ;

[0024] Figure 8 The force analysis simulation of the clamping device provided by the embodiment of the utility model Figure 4 ;

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the purge system provided by the embodiment of the utility model.

[0026] Description of Reference Numerals

[0027] 1. Clamping device; 11. Connecting base; 12. Support assembly; 13. Driving member; 14. First clamping assembly; 15. Second clamping assembly; 16. Guide plate; 17. Square steel; 18. Reinforcement rib plate; 19. Diagonal support plate; 141. Articulated bottom plate; 142. First pipe hoop; 143. Articulated shaft; 151. Second pipe hoop; 152. Articulated base; 161. Limiting groove; 181. Weight reduction hole; 191. Articulated mounting seat;

[0028] 2. Purge system; 21. Robot; 22. Slide rail; 23. Slide plate;

[0029] 3. Ladle; 4. Coal oxygen lance 4. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0031] See also Figure 1-Figure 2, Figure 1 : is a three-dimensional structural diagram of the clamping device 1 provided in an embodiment of the utility model, Figure 2 The diagram is a partial exploded structural diagram of the clamping device 1 provided by the embodiment of the utility model. The clamping device 1 of the utility model comprises a connecting base 11, a supporting assembly 12 and a driving member 13 installed on the supporting assembly 12. The connecting base 11 is fixedly connected to the supporting assembly 12. One end of the supporting assembly 12 is connected to a first clamping assembly 14 for clamping the coal oxygen gun barrel 44. The output end of the driving member 13 is connected to a second clamping assembly 15 for clamping the coal oxygen gun barrel 44. When the driving member 13 drives the output end to move linearly, the coal oxygen gun barrel 44 is driven to rotate around the first clamping assembly 14.

[0032] The connecting base 11 is fixedly connected to the supporting assembly 12, so that the supporting assembly 12 can be connected to the coal oxygen gun cart in the prior art through the connecting base 11, so that the movement of the coal oxygen gun cart drives the clamping device 1 and the coal oxygen gun barrel 4 to move together, the driving member 13 is installed on the supporting assembly 12, and the output end of the driving member 13 is connected to the second clamping assembly 15, and the other end of the supporting assembly 12 is fixed with the first clamping assembly 14, and the coal oxygen gun barrel 4 passes through the first clamping assembly 14 and the second clamping assembly 15 in sequence and is clamped and fixed by the first clamping assembly 14 and the second clamping assembly 15, and then the coal oxygen gun barrel 4 is rotated around the first clamping assembly 14 under the driving action of the driving member 13, thereby realizing the adjustment of the height direction of the coal oxygen gun barrel 4, so that when the clamping device 1 clamps the coal oxygen gun barrel 4 to purge the bottom blowing bricks of the ladle 3, the bottom blowing bricks at different heights can be purged.

[0033] It can be understood that the fixed connection method of the connection base 11 and the support assembly 12 includes any one of welding connection, integral molding, and bolt connection. In the embodiment of the utility model, the connection base 11 is a quick-change mother plate, a flange is formed on the quick-change mother plate, and a flange base is integrally formed on the support assembly 12. The quick-change mother plate is relatively fixed by bolting the flange and the flange base, so that the operator can disassemble and repair the connection base 11 according to actual needs. A quick-change male plate detachably connected to the quick-change mother plate is fixed on the coal oxygen gun cart, so that the clamping device 1 can be fixed by connecting the quick-change male plate with the quick-change mother plate, and then the clamping device 1 can be driven by the coal oxygen gun cart to clamp the coal oxygen gun barrel 4 and move synchronously.

[0034] In an embodiment of the utility model, the driving member 13 includes any one of a pneumatic cylinder, a hydraulic cylinder, and an electric cylinder. Preferably, the driving member 13 adopts an electric cylinder. Further preferably, the driving member 13 adopts a servo electric cylinder, so that the coal oxygen gun barrel 4 can be driven to rotate around the first clamping assembly 14 under the action of the servo electric cylinder, and the rotation angle of the coal oxygen gun barrel 4 can be precisely controlled by the servo electric cylinder, which helps to achieve precise adjustment of the height of the coal oxygen gun barrel 4 and facilitates the purging of bottom blowing bricks of different heights.

[0035] In the embodiment of the utility model, the body of the driving member 13 is rotatably mounted on the supporting assembly 12, and the output end of the driving member 13 is hingedly connected to the second clamping assembly 15. When the driving member 13 drives the output end to extend, it drives the second clamping assembly 15 to the lower left (the orientation reference is based on Figure 1 ) moves, and at the same time, a small amount of rotation occurs under the hinged connection between the second clamping assembly 15 and the output end, so as to adjust the driving angle of the driving member 13 and increase the height adjustment range of the driving member 13 driving the coal oxygen gun barrel 4.

[0036] By installing the clamping device 1 of the utility model on the existing coal oxygen gun cart, the coal oxygen gun barrel 4 can be used to purge bottom blowing bricks at different heights, which solves the problem of manually lifting the coal oxygen gun barrel 4 to achieve the purge of bottom blowing bricks at different heights in the prior art. The technical solution of the utility model is that the driving member 13 drives the coal oxygen gun barrel 4 to rotate around the first clamping assembly 14, which saves manpower and is conducive to achieving the purpose of automating the bottom blowing brick purging operation.

[0037] See also Figure 3 , Figure 3 yes Figure 2 In the embodiment of the utility model, the first clamping assembly 14 includes a hinged bottom plate 141, a first pipe hoop 142 and hinged shafts 143 fixed on both sides of the first pipe hoop 142, the hinged bottom plate 141 is fixed on both sides of the width direction of the support assembly 12, the inner diameter of the first pipe hoop 142 is adapted to the diameter of the coal oxygen gun barrel 4, and the hinged shaft is hingedly connected to the hinged bottom plate 141.

[0038] By fixing the hinged bottom plate 141 on both sides of the width of the support assembly 12, the hinged shafts 143 on both sides of the first pipe hoop 142 are plugged in, so as to achieve the effect of the first pipe hoop 142 rotating around the hinged shaft 143. Since the inner diameter of the first pipe hoop 142 is adapted to the diameter of the coal oxygen gun barrel 4, the coal oxygen gun barrel 4 can be fixed by sleeved on the first pipe hoop 142. When the first pipe hoop 142 rotates around the hinged shaft 143, the coal oxygen gun barrel 4 is driven to rotate, thereby realizing the adjustment of the sweeping height of the coal oxygen gun barrel 4, so as to facilitate the purging of bottom blowing bricks of different heights. The other end of the coal oxygen gun barrel 4 is connected to the driving member 13 through the second clamping assembly 15, so that the coal oxygen gun barrel 4 can be driven to rotate around the hinged shaft 143 under the drive of the driving member 13, thereby realizing the automatic adjustment of the height of the coal oxygen gun barrel 4, replacing the manual operation mode of adjusting the height of the coal oxygen gun barrel 4.

[0039] It can be understood that the fixing method of the articulated base 152 and the support assembly 12 includes any one of bolt connection, welding connection, and snap connection. The articulated base 152 and the support assembly 12 are relatively fixed to facilitate the articulation after the articulated shaft 143 and the articulated base 152 are plugged in, thereby avoiding the first pipe clamp 142 from having any freedom of movement other than rotation around the articulated shaft.

[0040] See also Figure 4 , Figure 4 yes Figure 2 In the embodiment of the utility model, the second clamping assembly 15 includes a second pipe hoop 151 and a hinged base 152 fixed on the second pipe hoop 151, the inner diameter of the second pipe hoop 151 is adapted to the diameter of the coal oxygen gun tube 4, and the output end of the driving member 13 is hingedly connected to the hinged base 152.

[0041] By fixing the hinged base 152 on the second pipe hoop 151, the output end of the driving member 13 is hingedly connected to the hinged base 152, and then when the driving member 13 drives the hinged base 152 to move to the lower left, the driving member 13 can rotate a small amount under the hinged action of the hinged base 152, thereby increasing the distance that the driving member 13 can drive the second clamping assembly 15 to move, so that the adjustment range of the height of the coal oxygen gun barrel 4 is increased. Since the inner diameter of the second pipe hoop 151 is adapted to the diameter of the coal oxygen gun barrel 4, the coal oxygen gun barrel 4 can be fixed by sleeved on the coal oxygen gun barrel 4. The coal oxygen gun barrel 4 is fixed under the joint clamping of the first pipe hoop 142 and the second pipe hoop 151, thereby avoiding the bending deformation of the ten-meter-long coal oxygen gun barrel 4 due to the force at a single position, which in turn reduces or damages the purging effect of the coal oxygen gun barrel 4.

[0042] It can be understood that the connection method between the articulated base 152 and the second pipe clamp 151 includes any one of welding connection and integral molding, so as to increase the structural strength between the articulated base 152 and the second pipe clamp 151, so that the second clamping assembly 15 can stably clamp the coal oxygen gun barrel 4 while allowing the driving member 13 to be connected to the articulated base 152 and drive the second clamping assembly 15 to move.

[0043] In the embodiment of the utility model, the clamping device 1 further comprises a guide plate 16 vertically fixed on the support assembly 12 , and a limiting groove 161 is provided on the guide plate 16 for vertical movement of the coal oxygen gun barrel 4 , and the width of the limiting groove 161 is adapted to the diameter of the coal oxygen gun barrel 4 .

[0044] By vertically fixing the guide plate 16 on the support assembly 12, and providing a limiting groove 161 adapted to the diameter of the coal oxygen gun barrel 4 on the guide plate 16, the lateral swing of the coal oxygen gun barrel 4 is limited when the driving member 13 drives the coal oxygen gun barrel 4 to rotate up and down around the first clamping assembly 14, thereby improving the movement accuracy and reliability of the coal oxygen gun barrel 4. Compared with the coal oxygen gun barrel 4 being clamped by the first clamping assembly 14 and the second clamping assembly 15, adding the guide plate 16 can further increase the structural stability of the coal oxygen gun barrel 4 and prevent the coal oxygen gun barrel 4 from lateral swinging.

[0045] It can be understood that the fixing method of the guide plate 16 and the support assembly 12 includes any one of bolt connection and welding connection. Preferably, the guide plate 16 and the support assembly 12 are connected by welding to increase the structural strength and structural stability between the guide plate 16 and the support assembly 12.

[0046] In the embodiment of the present utility model, reinforcing ribs 18 are fixed on both sides of the width of the guide plate 16 , and weight-reducing holes 181 are opened on the reinforcing ribs 18 .

[0047] The reinforcing rib plate 18 is fixed on both sides of the width of the guide plate 16 to improve the structural stability of the guide plate 16, thereby providing a stable guide for the movement of the coal oxygen gun barrel 4, thereby preventing the coal oxygen gun barrel 4 from moving laterally and affecting the purging accuracy of the coal oxygen gun barrel 4. By opening a weight-reducing hole 181 on the reinforcing rib plate 18, the overall weight of the clamping device 1 is reduced, so that the operator can push the coal oxygen gun cart equipped with the clamping device 1.

[0048] In the embodiment of the present utility model, the support assembly 12 includes a square steel 17 and a reinforcing rib plate 18 fixed to the upper and lower sides of the square steel 17 , and a weight-reducing hole 181 is opened on the reinforcing rib plate 18 .

[0049] By arranging reinforcing ribs 18 on the upper and lower sides of the square steel 17 and opening weight-reducing holes 181 on the reinforcing ribs 18, the structural strength of the square steel 17 is improved without increasing the overall mass too much, so that operators can push the coal oxygen gun cart equipped with the clamping device 1.

[0050] See also Figure 5-Figure 8 , Figure 5 The force analysis simulation of the clamping device 1 provided in the embodiment of the utility model is Figure 1 ; Figure 6 The force analysis simulation of the clamping device 1 provided in the embodiment of the utility model is Figure 2 ; Figure 7 The force analysis simulation of the clamping device 1 provided in the embodiment of the utility model is Figure 3 ; Figure 8 The force analysis simulation of the clamping device 1 provided in the embodiment of the utility model is Figure 4. Limited by the coloring requirements of patent drawings, Figure 5-Figure 8 All are decolorized. In the original image, different positions of the clamping device 1 produce different degrees of deformation under different forces and force directions, and different colors are used to represent the deformation amount of each deformation position. The value of the deformation amount of the corresponding color is Figure 5-Figure 8 For example, in Figure 5 In the example, the clamping device 1 is subjected to a force of 550 kg in the direction of the arrow, and the maximum deformation is 0.379 mm. Figure 6 In the example, the clamping device 1 is subjected to a force of 550KG in the direction of the arrow, and the maximum variable stress is 69.2MPa. Figure 7 In the figure, the clamping device 1 is subjected to a force of 500 kg along the arrow, simulating the force of a gun barrel blocking a door, and the maximum deformation is 3.77 mm. Figure 8 In the figure, the clamping device 1 is subjected to a force of 500 kg along the arrow, simulating the force when the barrel of a gun is blocked on the door, and the maximum stress is 145.3 MPa.

[0051] In the embodiment of the utility model, the support assembly 12 further comprises an inclined support plate 19 connected to the end of the square steel 17 , and an articulated mounting seat 191 to which the driving member 13 is articulated is fixed on the inclined support plate 19 .

[0052] By installing the diagonal support plate 19 on the end of the square steel 17 and fixing the hinged mounting seat 191 on the diagonal support plate 19, the driving member 13 can be hingedly connected to the diagonal support plate 19 through the hinged mounting seat 191, and the output end of the driving member 13 is hingedly connected to the coal oxygen gun barrel 4 through the second clamping assembly 15. When the driving member 13 drives the coal oxygen gun barrel 4 to adjust its height, the driving member 13 can rotate a small amount under the hinged connection between the hinged mounting seat 191 and the second clamping assembly 15, so as to increase the height adjustment range of the coal oxygen gun barrel 4.

[0053] It can be understood that the connection method between the diagonal support plate 19 and the square steel 17 includes any one of bolt connection and welding connection. Preferably, the diagonal support plate 19 and the square steel 17 are connected by welding to increase the structural strength and structural stability between the diagonal support plate 19 and the square steel 17, so that the driving member 13 is installed on the diagonal support plate 19 to drive the coal oxygen gun barrel 4 to adjust the height.

[0054] According to the above-mentioned clamping device 1, the embodiment of the utility model further provides a purge system 2, see Fig. 9 , Fig. 9 2 is a three-dimensional structural diagram of a purge system 2 provided in an embodiment of the utility model. The purge system 2 comprises a robot 21 and the above-mentioned clamping device 1, and a connecting plate for connecting to the connecting base 11 is fixed on the robot 21.

[0055] A connecting plate is provided on the robot 21 so that the clamping device 1 can be connected to the connecting plate through the connecting base 11, and the coal oxygen lance tube 4 is installed on the clamping device 1. The first clamping assembly 14 and the second clamping assembly 15 are used to clamp and fix the coal oxygen lance tube 4, so that the clamping device 1 connected to the coal oxygen lance tube 4 can be driven to move synchronously under the action of the robot 21, and the robot 21 can replace manual labor to perform the purging operation of the bottom blowing bricks of the ladle 3, thereby realizing unmanned operation of the bottom blowing bricks of the ladle 3.

[0056] It can be understood that the robot 21 adopts a multi-axis robotic arm, the connecting base 11 is a quick-change female disk, and the connecting plate is a quick-change male disk. The robot 21 clamps the clamping device 1 by plugging the quick-change male disk and the quick-change female disk, and then the robot 21 drives the clamping device 1 to connect to the coal-oxygen gun barrel 4 to move synchronously, and the height adjustment of the coal-oxygen gun barrel 4 is achieved under the drive of the driving member 13.

[0057] In the embodiment of the present utility model, the purge system 2 further includes a slide rail 22 and a slide plate 23 moving along the slide rail 22 , and the robot 21 is fixed on the slide plate 23 .

[0058] By fixing the robot 21 on the slide plate 23 and moving the slide plate 23 through the slide rail 22 matched with the slide plate 23, the robot 21 can adjust the depth and height of the coal oxygen gun barrel 4 under the movement of the slide plate 23, and combined with the multi-axis rotation of the robot 21 and the height adjustment of the coal oxygen gun barrel 4 by the clamping device 1, all-round blowing of the bottom blowing bricks inside the ladle 3 can be achieved. Through the blowing system 2 of the utility model, the slag inside the ladle 3 can be blown more thoroughly.

[0059] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any appropriate manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

[0061] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An angle-adjustable coal oxygen gun clamping device, characterized in that: The clamping device includes a connecting base, a supporting assembly and a driving member installed on the supporting assembly. The connecting base is fixedly connected to the supporting assembly. One end of the supporting assembly is connected to a first clamping assembly for clamping the coal oxygen gun barrel. The output end of the driving member is connected to a second clamping assembly for clamping the coal oxygen gun barrel. When the driving member drives the output end to move linearly, it drives the coal oxygen gun barrel to rotate around the first clamping assembly.

2. The angle-adjustable coal oxygen lance clamping device according to claim 1 is characterized in that: The first clamping assembly includes a hinged base plate, a first pipe clamp and hinged shafts fixed on both sides of the first pipe clamp. The hinged base plate is fixed on both sides of the width direction of the support assembly. The inner diameter of the first pipe clamp is adapted to the diameter of the coal oxygen gun barrel. The hinged shaft is hingedly connected to the hinged base plate.

3. The angle-adjustable coal oxygen lance clamping device according to claim 1 is characterized in that: The second clamping assembly includes a second pipe hoop and a hinged base fixed on the second pipe hoop, the inner diameter of the second pipe hoop is adapted to the diameter of the coal oxygen gun tube, and the output end of the driving member is hingedly connected to the hinged base.

4. The angle-adjustable coal oxygen lance clamping device according to claim 1, characterized in that: The clamping device also includes a guide plate vertically fixed on the support assembly, and a limiting groove for vertical movement of the coal oxygen gun barrel is formed on the guide plate, and the width of the limiting groove is adapted to the diameter of the coal oxygen gun barrel.

5. The angle-adjustable coal-oxygen lance clamping device according to claim 4 is characterized in that: Reinforcement ribs are fixed on both sides of the width of the guide plate, and weight-reducing holes are opened on the reinforcement ribs.

6. The angle-adjustable coal oxygen lance clamping device according to claim 1, characterized in that: The support assembly includes square steel and reinforcing rib plates fixed to the upper and lower sides of the square steel, and the reinforcing rib plates are provided with weight-reducing holes.

7. The angle-adjustable coal-oxygen lance clamping device according to claim 6, characterized in that: The support assembly also includes a diagonal support plate connected to the end of the square steel, and a hinged mounting seat for hinged connection of the driving member is fixed on the diagonal support plate.

8. The angle-adjustable coal-oxygen lance clamping device according to any one of claims 1 to 7, characterized in that: The driving member includes any one of a pneumatic cylinder, a hydraulic cylinder and an electric cylinder.

9. A purge system, characterized in that: The purging system comprises a robot and the clamping device according to any one of claims 1 to 8, a connecting plate for connecting the connecting base is fixed on the robot, and the clamping device is connected to the robot via the connecting plate.

10. The purge system according to claim 9, characterized in that: The purge system also includes a slide rail and a slide plate moving along the slide rail, and the robot is fixed on the slide plate.

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