Transverse moving type silicomanganese operation robot

By designing a transverse silicon-manganese operating robot, using eye plugging, eye opening and spinning mechanism assembly instead of manual labor, combined with drill rod tug and slag cleaning mechanism, the risk and labor intensity of silicon-manganese furnace personnel are solved. A more efficient and safe operation process is achieved.

CN222155577UActive Publication Date: 2024-12-13SHANDONG JUNCHENG MACHINERY TECH
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Patent Information

Application Number
CN202420958651.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-07
Publication Date
2024-12-13
Estimated Expiration
2034-05-07

AI Technical Summary

Technical Problem

The work of the silicon manganese furnace is dangerous and has a high labor intensity. Due to harsh environments such as high temperature and dust, the safety factor is low. The equipment is easily deformed by heat during the pulling process, which affects the operating efficiency.

Method used

Design a transversely moving silicon-manganese operating robot, including transversely moving ground rails, eye plugging, eye opening and drilling mechanism assembly on longitudinally moving beams, through these mechanisms, the operation is completed instead of manpower, and through drill rod tug mechanism and slag cleaning The mechanism avoids heat deformation and slag attachment, making it easy to replace.

Benefits of technology

The automation and safety of operations are improved, the intensity of labor is reduced, equipment failures caused by heat deformation and slag attachment are avoided, and operation efficiency and equipment life are improved.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222155577U_ABST
Patent Text Reader

Abstract

A transverse moving type silicomanganese operation robot is arranged in front of a silicomanganese furnace and comprises a transverse moving ground rail, and the length direction of the transverse moving ground rail is perpendicular to the orientation of a furnace opening. A large vehicle chassis is arranged above the transverse moving ground rail, a longitudinal moving girder is arranged on the large vehicle chassis, a hole blocking mechanism assembly, a hole opening mechanism assembly and a drill rod pulling mechanism assembly are sequentially arranged on the longitudinal moving girder in the length direction of the transverse moving ground rail, and the hole blocking mechanism assembly, the hole opening mechanism assembly and the drill rod pulling mechanism assembly can move along the longitudinal moving girder. The moving direction is perpendicular to the length direction of the transverse moving ground rail; the output end of the hole plugging mechanism assembly, the output end of the hole opening mechanism assembly and the output end of the drill rod pulling mechanism assembly are flush, and a hole pulling drill rod of the drill rod pulling mechanism assembly can be replaced. The hole plugging mechanism assembly, the hole opening mechanism assembly and the pulling and drilling mechanism assembly are used for replacing manpower to complete corresponding operation, safety is higher, the mechanisms can autonomously switch operation mechanisms, and the corresponding mechanism assemblies are subjected to unique structural design according to operation requirements.
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Description

Technical Field

[0001] The utility model relates to the technical field of silicon-manganese furnace discharging equipment, in particular to a transversely moving silicon-manganese operating robot. Background Art

[0002] Silicon manganese alloy, also known as silicon manganese iron and silicon manganese alloy, is an alloy with silicon and manganese as the main components, the main components are Mn and Si. It has a wide range of applications in terms of physical properties, chemical properties, magnetism and hardness. The current production processes mainly include ironmaking method and electric furnace method to melt raw materials such as silica, manganese ore, coke, limestone, etc. at high temperature, and use artificial steel drills to open holes and take them out of the furnace. During the process, silicon slag and other factors block the flow channel, so multiple people need to use steel drills to pull the slag and finally plug the holes manually. The work intensity of opening, plugging and pulling the drill is high, the safety factor is low, and the working environment is dusty, glare, high temperature and other harsh. Utility Model Content

[0003] In order to solve the problem that manual operation of the silicon-manganese furnace is dangerous and labor-intensive, the utility model provides a transversely movable silicon-manganese operation robot.

[0004] The technical solution of this utility model is as follows:

[0005] A transversely movable silicon-manganese operation robot is arranged in front of a silicon-manganese furnace opening, and comprises a transversely movable ground rail, wherein the length direction of the transversely movable ground rail is arranged perpendicular to the direction of the furnace opening;

[0006] A trolley chassis is arranged above the transverse ground rail, and a longitudinal beam is arranged on the trolley chassis. The longitudinal beam is provided with an eye-blocking mechanism assembly, an eye-opening mechanism assembly and a rod-pulling mechanism assembly in sequence along the length direction of the transverse ground rail, and the eye-blocking mechanism assembly, the eye-opening mechanism assembly and the rod-pulling mechanism assembly can all move along the longitudinal beam, and the moving direction is perpendicular to the length direction of the transverse ground rail;

[0007] The output ends of the eye plugging mechanism assembly, the eye opening mechanism assembly and the drill pulling mechanism assembly are flush, and the eye pulling drill rod of the drill pulling mechanism assembly can be replaced.

[0008] The corresponding operations are completed by replacing manpower with the eye blocking mechanism assembly, the eye opening mechanism assembly and the rod pulling mechanism assembly, and the above-mentioned device can be moved according to demand, has a high degree of freedom, can completely replace manpower, and is safer.

[0009] The specific structure of the above-mentioned eye-blocking mechanism assembly is that the eye-blocking mechanism assembly includes a mud-making oil cylinder arranged away from the silicon-manganese furnace, a mud gun barrel is arranged at the output end of the mud-making oil cylinder, and a mud gun head is arranged at one end of the mud gun barrel close to the silicon-manganese furnace.

[0010] The specific structure of the above-mentioned eye-opening mechanism assembly is that the eye-opening mechanism assembly includes a rock drill, and the output end of the rock drill is arranged toward the silicon manganese furnace, and is provided with an eye-opening drill rod, and the end of the eye-opening drill rod is provided with an alloy drill bit.

[0011] The specific structure of the above-mentioned drill rod pulling mechanism assembly is that the drill rod pulling mechanism assembly includes a drill rod clamping mechanism that is arranged away from the silicon-manganese furnace and can move, and a slag cleaning mechanism that is arranged close to the silicon-manganese furnace and has a fixed position.

[0012] In order to prevent the eyelet drill rod from being affected by heat deformation, one or more drill rod tug mechanisms are provided between the drill rod clamping mechanism and the slag cleaning mechanism. The drill rod tug mechanism supports the eyelet drill rod without affecting its movement, thereby avoiding the problem of excessive deformation.

[0013] The specific structure of the drill rod clamping mechanism is that the drill rod clamping mechanism includes a movable locking seat, on which a fixed clamping block and a movable clamping block are relatively arranged, and the movable clamping block moves in a direction perpendicular to the eyelet drill rod. According to the specific use of the eyelet drill rod, when a problem occurs, the movable clamping block can be moved to facilitate its replacement.

[0014] The movable clamping block is driven to move in the following manner: the movable clamping block is driven by a threaded screw, and a rotating handle is arranged at the end of the threaded screw.

[0015] The specific structure of the above-mentioned slag cleaning mechanism is that the slag cleaning mechanism includes a fixed seat and a rotating seat that can rotate relative to the fixed seat, and the adjacent surfaces of the fixed seat and the rotating seat are both provided with grooves, and the eyelet drill rod passes through the groove and is in close contact with the inner wall of the groove in the circumferential direction. The positions of the fixed seat and the rotating seat are fixed, so when the eyelet drill rod moves, all the slag attached to its surface can be blocked, and then after it moves to the initial position, no slag will be attached to the surface.

[0016] In order to facilitate the replacement of the eyelet drill rod, the rotating seat is connected to the fixed seat at one end away from the rotating shaft through a detachable pin.

[0017] The method for driving the movement of various mechanism assemblies is that a plurality of driving units corresponding to the eye-plugging mechanism assembly, the eye-opening mechanism assembly and the bar-pulling mechanism assembly are arranged at the end of the longitudinal moving beam away from the silicon-manganese furnace, and an adjustable tensioning wheel is arranged at the end close to the silicon-manganese furnace, and a chain is sleeved between the tensioning wheel and the driving unit, and the eye-plugging mechanism assembly, the eye-opening mechanism assembly and the bar-pulling mechanism assembly are detachably connected to the corresponding chains respectively.

[0018] The beneficial effects of the utility model are as follows: the utility model is a transversely moving silicon-manganese operating robot, which can replace manpower to complete corresponding operations through the eye plugging mechanism assembly, the eye opening mechanism assembly and the drill pulling mechanism assembly, and the above-mentioned structure can independently switch the working position according to the working requirements, which is very safe and convenient, and the drill pulling mechanism assembly in the device is designed with a separate structure according to the working characteristics of the eye pulling drill rod, and the drill rod tug mechanism is set to avoid excessive heat deformation due to reciprocating work, and the slag cleaning mechanism is used to help it clean the slag attached to the surface and support it simultaneously during the reciprocating movement. Finally, the eye pulling drill rod is very convenient to replace, and it can be disassembled and assembled through simple operations after it cannot work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0023] Figure 3 This is a side view of the structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the front view structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the drill rod clamping mechanism of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the slag cleaning mechanism of the utility model;

[0027] The components represented by the reference numerals in the figure are:

[0028] 1. Transverse ground rail; 2. Transverse wheel group; 3. Car chassis; 4. Longitudinal beam; 5. Eye plugging mechanism assembly; 51. Mud cylinder; 52. Mud gun barrel; 53. Mud gun head; 6. Eye opening mechanism assembly; 61. Rock drill; 62. Eye opening drill rod; 63. Alloy drill bit; 7. Drill pulling mechanism assembly; 71. Drill rod clamping mechanism; 711. Locking seat; 712. Fixed clamping block; 713. Movable clamping block; 714. Rotating handle; 72. Drill rod tug mechanism; 73. Eye pulling drill rod; 74. Slag cleaning mechanism; 741. Fixed seat; 742. Rotating seat; 743. Latch. DETAILED DESCRIPTION

[0029] like Figure 1-4 A transversely moving silicon-manganese operating robot is shown, which is arranged in front of the furnace mouth of the silicon-manganese furnace. The silicon-manganese furnace is generally cylindrical, and the furnace mouth is arranged on the side wall, and the furnace mouth is oriented toward the center of the silicon-manganese furnace. Therefore, if the device needs to switch the operating mechanism according to demand, the moving direction needs to be perpendicular to the straight line direction between the furnace mouth and the center of the silicon-manganese furnace.

[0030] In the above structure, the specific structure of the silicon-manganese operating robot is that it includes a transverse ground rail 1, and the length direction of the transverse ground rail 1 is arranged perpendicular to the direction of the furnace mouth. Therefore, it only needs to move along the length direction of the transverse ground rail 1 to switch the position in front of the silicon-manganese furnace mouth, thereby being able to switch the operating mechanism according to needs.

[0031] Afterwards, if Figure 3 As shown, a trolley chassis 3 is arranged above the transverse ground rail, and the trolley chassis 3 is arranged on the transverse ground rail 1 through the transverse wheel set 2, so that it can move along the transverse ground rail 1. Therefore, it is only necessary to arrange the operating mechanism on the trolley chassis 3 to switch the operating mechanism normally. It should be noted that only the transverse switching of the operating mechanism cannot complete the operation. Since the operating mechanism cannot always be located at the furnace mouth position, it is also necessary to have the ability to adjust the spacing along the direction of the furnace mouth. For this purpose, Figure 1 As shown, a longitudinal moving beam 4 is arranged on the trolley chassis 3, and the length direction of the longitudinal moving beam 4 is arranged perpendicular to the length direction of the transverse moving guide rail 1, and after the operating mechanism is set, the operating mechanism can move along the longitudinal moving beam 4 and extend into the furnace mouth to operate, and when its operation is completed, it can be reset and stay away from the furnace mouth to avoid affecting subsequent operations.

[0032] Moreover, in the above structure, the longitudinal moving beam 4 is provided with an eye plugging mechanism assembly 5, an eye opening mechanism assembly 6 and a bar pulling mechanism assembly 7 in sequence along the length direction of the transverse moving rail 1, and can respectively complete the eye plugging operation, the eye opening operation and the eye pulling operation. Correspondingly, the above-mentioned eye plugging mechanism assembly 5, the eye opening mechanism assembly 6 and the bar pulling mechanism assembly 7 can all move along the longitudinal moving beam 4, and the moving direction is perpendicular to the length direction of the transverse moving rail.

[0033] It should be noted that in the above structure, the method for driving the movement of various mechanism assemblies is that a plurality of drive units corresponding to the eye-blocking mechanism assembly 5, the eye-opening mechanism assembly 6 and the brazing mechanism assembly 7 are arranged at the end of the longitudinal moving beam 4 away from the silicon-manganese furnace, and an adjustable tensioning wheel is arranged at the end close to the silicon-manganese furnace, and a chain is sleeved between the tensioning wheel and the drive unit, and the eye-blocking mechanism assembly 5, the eye-opening mechanism assembly 6 and the brazing mechanism assembly 7 are detachably connected to the corresponding chains. By driving the rotation of the chain, the working structure fixed thereto can be moved, and by the forward and reverse rotation of the driving unit, the above working direction can be adjusted, and after the chain becomes loose due to the increase in use time, it can be tightened to make it have the moving function again.

[0034] Finally, in the above structure, the output ends of the eye plugging mechanism assembly 5, the eye opening mechanism assembly 6 and the drill pulling mechanism assembly 7 are flush and the eye pulling drill rod 73 of the drill pulling mechanism assembly 7 can be replaced.

[0035] The above structure can realize that the corresponding operations can be completed by replacing manpower with the eye blocking mechanism assembly 5, the eye opening mechanism assembly 6 and the drill pulling mechanism assembly 7 respectively, and the above device can be moved according to demand, has a high degree of freedom and can completely replace manpower, which is safer.

[0036] As an embodiment, the specific structure of the above-mentioned plugging mechanism assembly 5 is that the above-mentioned plugging mechanism assembly 5 includes a mud-beating oil cylinder 51 arranged away from the silicon-manganese furnace, a mud gun barrel 52 is arranged at the output end of the mud-beating oil cylinder, and a mud gun head 53 is arranged at one end of the mud gun barrel 52 close to the silicon-manganese furnace. The mud gun head 53 can be replaced, which is convenient for replacement according to the actual shape or size of the furnace mouth. When in use, it is only necessary to inject the plugging material into the mud gun barrel 52 and use the mud-beating oil cylinder 51 to push it forward, and before use, the above-mentioned plugging mechanism assembly 5 needs to be moved to the front of the furnace mouth and aligned with the furnace mouth.

[0037] Similarly, the specific structure of the eye-opening mechanism assembly 6 is that the eye-opening mechanism assembly 6 includes a rock drill 61, and the output end of the rock drill 61 is arranged toward the silicon-manganese furnace, and is provided with an eye-opening drill rod 62, and the end of the eye-opening drill rod 62 is provided with an alloy drill bit 63. The alloy drill bit 63 has a higher strength and is connected to the eye-opening drill rod 62 in a detachable connection manner. After use and wear, it does not affect the overall structure of the eye-opening drill rod 62. Only the alloy drill bit 63 needs to be replaced separately to make the eye-opening mechanism assembly 6 look brand new, and the above structure also needs to be moved to the intersection before operation, and for the convenience of use, the rock drill 61 will be directly connected to the chain and driven.

[0038] The following is the focus of the present device, namely the eyelet mechanism assembly 7, as an implementation method, as shown in FIG. Figure 5 ,6 As shown, the specific structure of the above-mentioned drill pulling mechanism assembly 7 is that the drill pulling mechanism assembly 7 includes a drill rod clamping mechanism 71 which is arranged away from the silicon-manganese furnace and can be moved, and a slag cleaning mechanism 74 which is arranged close to the silicon-manganese furnace and is fixed in position, wherein the drill rod clamping mechanism 71 is lockedly connected with the chain, so it can be moved and driven, and it is connected with the eye-pulling drill rod 73, so it can drive the eye-pulling drill rod 73 to move synchronously.

[0039] In the above structure, in order to prevent the eyelet drill rod 73 from being affected by heat deformation and operation, one or more drill rod tug mechanisms 72 are provided between the drill rod clamping mechanism 71 and the slag cleaning mechanism 74. The position of the drill rod tug mechanism 72 is fixed and cannot affect the normal movement of the drill rod clamping mechanism 71. The number of the drill rod tug mechanisms 72 is set according to demand. The larger the length, the more the number required. After that, the drill rod tug mechanism 72 can be used to support the eyelet drill rod 73 without affecting its movement, thereby avoiding the problem of excessive deformation.

[0040] like Figure 5 As shown, the specific structure of the drill rod clamping mechanism 71 is that the drill rod clamping mechanism 71 includes a movable locking seat 711, which is connected to the chain and moves synchronously, and then a fixed clamping block 712 and a movable clamping block 713 are relatively arranged on the locking seat 711, and the moving direction of the movable clamping block 713 is perpendicular to the eyelet drill rod 73. According to the specific use of the eyelet drill rod 73, after a problem occurs, the movable clamping block 713 can be moved to facilitate its replacement. And the adjacent planes of the movable clamping block 713 and the fixed clamping block 712 are rough surfaces to facilitate the fixing of the eyelet drill rod 73, and the way to drive the movable clamping block 713 to move is that the movable clamping block 713 is driven by a threaded screw, and a rotating handle 714 is provided at the end of the threaded screw.

[0041] Finally, there is a special design made by our company based on actual usage, namely, slag cleaning operation. First, the specific structure of the above-mentioned slag cleaning mechanism 74 is that the slag cleaning mechanism 74 includes a fixed seat 741 and a rotating seat 742 that can rotate relative to the fixed seat 741. The adjacent surfaces of the fixed seat 741 and the rotating seat 742 are both provided with grooves. The combination of the two grooves constitutes a circular opening, and the circular opening can only be penetrated by the eyelet drill rod 73, and the eyelet drill rod 73 passes through the groove and is in close contact with the inner wall of the groove in the circumferential direction. Therefore, when the fixed seat 741 and the rotating seat 742 are fixed in position, when the eyelet drill rod 73 moves, it can block all the slag attached to its surface, and then after it moves to the initial position, no slag will be attached to the surface.

[0042] At the same time, in order to facilitate the replacement of the eyelet drill rod 73, the rotating seat 742 is connected to the end of the fixed seat 741 away from the rotating shaft through a detachable pin 743.

[0043] The specific operation process is that the silicon-manganese furnace unloading robot moves to the furnace eye position by the transverse moving ground rail 1, and the longitudinal moving beam 4 first extends the beam forward as the first-level extension of the eye opening mechanism assembly, the eye blocking mechanism assembly, and the eye pulling mechanism assembly.

[0044] Eye opening process: According to the normal silicon manganese furnace discharge process, the first process is the eye opening process. First, the eye opening mechanism assembly 6 is longitudinally extended to the end face of the furnace eye, and the eye opening drill rod 62 is carried by the rock drill 61. The alloy drill bit 63 at the front end of the eye opening drill rod 62 rotates and impacts, and the intermediate gas enters to discharge the slag, completing the eye opening process.

[0045] Eyelet pulling process: According to the normal silicon manganese furnace unloading process, the second process is the eyelet pulling process. First, the silicon manganese furnace unloading robot moves to the furnace eye position by the transverse ground rail 1, and the eyelet pulling mechanism assembly 7 is extended longitudinally as a whole. When it is a safe distance away from the furnace tongue, the drill rod clamping mechanism 71 carries the eyelet pulling drill rod 73 and pulls it back and forth to perform the eyelet pulling operation to discharge the residue in the furnace eye. Since the eyelet pulling drill rod 73 is relatively long, it is easy to be deformed by heat during the eyelet pulling process, and the drill rod tug mechanism 72 is required to support the eyelet pulling drill rod 73. During the multiple reciprocating motions of the eyelet pulling drill rod 73, the outer wall will adhere to the residue, which needs to be blocked and cleaned by the slag cleaning mechanism 74.

[0046] Eye plugging process: According to the normal silicon manganese furnace discharge process, the third process is the eye plugging process. First, the silicon manganese furnace discharge robot moves to the furnace eye position through the horizontal ground rail 1, and the eye plugging mechanism assembly 5 moves longitudinally to the end face of the furnace eye. The mud gun head 53 directly supports the furnace eye, and the mud cylinder 51 is pushed to drive the waterless gun mud in the mud gun barrel 52 into the entire furnace eye. After the waterless bubble mud is dried, the equipment is returned. The process operation is repeated in a reciprocating cycle.

Claims

1. A transversely movable silicon-manganese operation robot, arranged in front of the mouth of a silicon-manganese furnace, characterized in that: It comprises a transverse ground rail (1), wherein the length direction of the transverse ground rail (1) is arranged perpendicular to the direction of the furnace mouth; A vehicle chassis (3) is arranged above the transverse ground rail (1), and a longitudinal beam (4) is arranged on the vehicle chassis (3); an eye-blocking mechanism assembly (5), an eye-opening mechanism assembly (6) and a rod-pulling mechanism assembly (7) are arranged on the longitudinal beam (4) in sequence along the length direction of the transverse ground rail (1); and the eye-blocking mechanism assembly (5), the eye-opening mechanism assembly (6) and the rod-pulling mechanism assembly (7) are all capable of moving along the longitudinal beam (4), and the moving direction is perpendicular to the length direction of the transverse ground rail (1); The output ends of the eye plugging mechanism assembly (5), the eye opening mechanism assembly (6) and the drill pulling mechanism assembly (7) are flush, and the eye pulling drill rod (73) of the drill pulling mechanism assembly (7) is replaceable.

2. A transversely movable silicon-manganese working robot according to claim 1, characterized in that: The plugging mechanism assembly (5) comprises a mud making cylinder (51) arranged away from the silicon-manganese furnace, a mud gun barrel (52) is arranged at the output end of the mud making cylinder, and a mud gun head (53) is arranged at one end of the mud gun barrel (52) close to the silicon-manganese furnace.

3. The traverse type silicon manganese working robot according to claim 1, characterized in that: The eye-opening mechanism assembly (6) comprises a rock drill (61), wherein the output end of the rock drill (61) is arranged toward the silicon-manganese furnace and is provided with an eye-opening drill rod (62), and an alloy drill bit (63) is provided at the end of the eye-opening drill rod (62).

4. The transversely movable silicon-manganese working robot according to claim 1, characterized in that: The drill rod pulling mechanism assembly (7) comprises a drill rod clamping mechanism (71) which is arranged away from the silicon-manganese furnace and can move, and a slag cleaning mechanism (74) which is arranged close to the silicon-manganese furnace and has a fixed position.

5. The traverse type silicon manganese working robot according to claim 4, characterized in that: One or more drill rod tug mechanisms (72) are arranged between the drill rod clamping mechanism (71) and the slag cleaning mechanism (74).

6. The transversely movable silicon-manganese working robot according to claim 4, characterized in that: The drill rod clamping mechanism (71) comprises a movable locking seat (711), on which a fixed clamping block (712) and a movable clamping block (713) are arranged relatively to each other, and the moving direction of the movable clamping block (713) is arranged perpendicular to the eyelet drill rod (73).

7. The transversely movable silicon-manganese working robot according to claim 6, characterized in that: The movable clamping block (713) is driven by a threaded screw, and a rotating handle (714) is provided at the end of the threaded screw.

8. The transversely movable silicon-manganese working robot according to claim 4, characterized in that: The slag cleaning mechanism (74) comprises a fixed seat (741) and a rotating seat (742) rotatable relative to the fixed seat (741), and adjacent surfaces of the fixed seat (741) and the rotating seat (742) are both provided with grooves, and the eyelet drill rod (73) passes through the groove and is in close contact with the inner wall of the groove in the circumferential direction.

9. The transversely movable silicon-manganese working robot according to claim 8, characterized in that: The rotating seat (742) is connected to an end of the fixed seat (741) away from the rotating shaft via a detachable latch (743).

10. A transversely movable silicon-manganese working robot according to any one of claims 1 to 4, characterized in that: A plurality of drive units corresponding to the eye plugging mechanism assembly (5), the eye opening mechanism assembly (6) and the bar pulling mechanism assembly (7) are arranged at one end of the longitudinal moving beam (4) away from the silicon-manganese furnace, and an adjustable tensioning wheel is arranged at one end close to the silicon-manganese furnace, and a chain is sleeved between the tensioning wheel and the drive unit, and the eye plugging mechanism assembly (5), the eye opening mechanism assembly (6) and the bar pulling mechanism assembly (7) are respectively detachably connected to the corresponding chains.