Metallurgical slag salvaging device

Abstract

The utility model relates to a metallurgical slag salvaging device, and belongs to the field of molten steel smelting devices. The slag salvaging device comprises a supporting assembly, a large telescopic arm assembly, a small lifting arm assembly and a grab bucket assembly, and the large telescopic arm assembly is installed on the supporting assembly and can achieve linear stretching in the horizontal direction; the small lifting arm assembly is mounted on the large telescopic arm assembly; the grab bucket assembly is mounted on the small lifting arm assembly; the grab bucket assembly comprises a grab bucket and a wall-attached slag stirring device, the wall-attached slag stirring device is arranged on the basis of a grabbing structure of a traditional slag salvaging machine, the structure can drive the middle shaft to rotate under the driving action of the rotating motor, then the slag stirring plate rotates around the middle shaft, and the slag stirring plate rotates around the middle shaft; and the slag stirring plate on the outer side of the hopper body drives the slag to rotate to the inner side of the hopper body to realize wall-attached slag stirring, so that a better slag salvaging effect is obtained.

Description

Technical Field

[0001] This utility model relates to steel smelting equipment, and more particularly to a metallurgical slag removal device. Background Technology

[0002] In the metallurgical process, impurities in the furnace charge, added slagging agents, and materials eroded from the furnace lining react chemically with elements such as oxygen and sulfur in the molten steel, forming compounds insoluble in the molten steel. These compounds float on the surface of the molten steel as solid particles, forming slag. If this slag is not removed in time, it will interfere with the smelting process, affect product quality, and even pollute the environment. Therefore, slag removal is an essential step in the metallurgical process.

[0003] The common method of slag removal is to use the grab bucket of a slag remover to scoop up the slag. However, due to the limited shape of the existing grab bucket and the fact that the inner wall of the steel furnace is mostly curved, the grab bucket cannot achieve wall-hugging gripping. This results in some slag near the inner wall of the steel furnace not being able to be scooped up by the grab bucket. This ring-shaped slag ring needs to be picked up using a slag-scooping rod. Using a slag-scooping rod usually requires manual operation, which poses safety hazards and is not very efficient. Therefore, solving the problem of the grab bucket sticking to the wall is the key to improving the efficiency and safety of slag removal. Summary of the Invention

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a slag removal device that improves operational efficiency and safety.

[0005] The technical solution of this utility model is as follows: A metallurgical slag removal device, comprising a support assembly, a telescopic boom assembly, a lifting arm assembly, and a grab bucket assembly. The support assembly serves as the support for the entire device and is fixedly installed on a rigid surface, such as a concrete floor. The telescopic boom assembly is mounted on the support assembly and can achieve horizontal linear extension and retraction, thereby adjusting the horizontal distance between the boom and the metallurgical furnace. The lifting arm assembly is mounted on the telescopic boom assembly and can achieve vertical linear extension and retraction, thereby adjusting the vertical distance between the lifting arm and the metallurgical furnace. The grab bucket assembly is mounted on the lifting arm assembly and can perform a grabbing action to remove slag. Simultaneously, the grab bucket assembly can adjust its spatial position relative to the metallurgical furnace under the action of the telescopic boom assembly and the lifting arm assembly.

[0006] As a further embodiment of this utility model: the support component includes a steel column, the bottom of which is provided with a base, and the base is provided with screw holes, and the base is fixed to the rigid mounting surface by means of bolts.

[0007] As a further embodiment of this utility model: the telescopic boom assembly includes a boom transverse guide rail, a boom rotating seat, a sliding boom, a drive gear, a linkage gear, a mounting base, a transverse push-pull drive device, and a boom rotation drive motor; the boom rotating seat is installed at the top of the column; the boom rotating seat consists of a bearing seat with built-in bearings and a rotating body, the bearing seat is fixed to the column by bolts, the rotating body is rotatably assembled with the bearing in the bearing seat, and one end of the boom transverse guide rail is fixed to the rotating body by bolts.

[0008] As a further embodiment of this utility model: a mounting base is fixed to the transverse guide rail of the boom by bolts, and a mounting position is provided on the mounting base. A boom rotation drive motor is fixed to the mounting position by bolts. A drive gear is fixedly mounted on the drive shaft of the boom rotation drive motor. The drive gear and the linkage gear mesh with each other, while the linkage gear is sleeved on the column. At the same time, the linkage gear is located below the boom rotation seat.

[0009] As a further embodiment of this utility model: a transverse guide rail for the boom is provided with a transverse sliding groove, and the sliding boom is slidably or rollingly installed in the transverse sliding groove; at the same time, the transverse push-pull drive device is fixed on the transverse guide rail for the boom, and the push-pull rod of the transverse push-pull drive device is fixedly connected to the sliding boom by bolts.

[0010] As a further embodiment of this utility model: the lifting arm assembly includes a vertical guide rail for the arm, a lifting drive device, a sliding arm, and an arm extension plate; the vertical guide rail for the arm is vertically fixed to the end of the sliding arm away from the rotating seat of the main arm by bolts; a vertical groove is provided on the vertical guide rail for the arm, and the sliding arm is slidably or rollingly installed in the vertical groove; the lifting drive device is fixed to the vertical guide rail for the arm by bolts, and the push-pull rod of the lifting drive device is fixedly connected to the sliding arm by bolts; the bottom surface of the sliding arm is provided with an installation chamber extending from bottom to top, and two opposing arm extension plates are provided on both sides of the bottom opening of the installation chamber, and the arm extension plates and the sliding arm are integrated into one piece.

[0011] As a further embodiment of this utility model: the grab bucket assembly includes a grab bucket and a wall-mounted slag-removing device. The grab bucket includes an opening and closing drive assembly, a heat insulation plate, a hinge seat, two pull rods, and two bucket bodies. The heat insulation plate is horizontally fixed inside the installation chamber, dividing the installation chamber into upper and lower spaces. The opening and closing drive assembly is located in the installation chamber above the heat insulation plate, and is fixedly connected to the sliding arm by bolts. A through hole is provided at the center of the heat insulation plate, through which the drive shaft of the opening and closing drive assembly passes to the installation chamber below the heat insulation plate. The hinge seat is fixed to the lower end of the drive shaft of the opening and closing drive assembly, and a pull rod is hinged to the left and right ends of the hinge seat, with the lower end of the pull rod protruding from the bottom opening of the installation chamber. Each bucket body has an extension plate connecting ear and a pull rod connecting ear integrally formed. The bucket body is hinged to the arm extension plate through the extension plate connecting ear and the pin, and is also hinged to the lower end of the corresponding pull rod through the pull rod connecting ear and the pin.

[0012] As a further embodiment of this utility model: the wall-mounted slag-removing device in this embodiment functions to grab slag close to the furnace wall. During grabbing, the two buckets are closed, forming a slag-accommodating space inside. The wall-mounted slag-removing device includes a splash guard, a rotating motor, a slag-removing drive gear, a gear disc, a slag-removing plate, and a central shaft. A slag inlet is provided on one of the two buckets, which is connected to the slag-accommodating space. The slag inlet is positioned slightly above the middle of the bucket to prevent liquid from entering during slag grabbing. The wall-mounted slag-removing device is located at the slag inlet, with the splash guard located inside the inlet and welded to the bucket. The rotating motor, the slag-removing drive gear, and the gear disc are located above the splash guard. The design structure prevents molten steel from splashing. The rotating motor and the splash guard are fixed together with bolts. The shaft end of the rotating motor is fixedly connected to a slag-removing drive gear, which meshes with a gear disc. A through-hole is formed in the splash guard, and a central shaft bearing is embedded in the hole. The central shaft passes through the hole and rotates in conjunction with the central shaft bearing. The gear disc is fixedly mounted on the upper end of the central shaft. Multiple slag-removing plates are located at the splash guard position. The slag-removing plates are spaced at equal angles around the circumference and fixedly connected to the central shaft. Several slag-removing plates extend to the outside of the bucket body through the slag inlet. Under the drive of the rotating motor, this structure drives the central shaft to rotate, which in turn causes the slag-removing plates to rotate around the central shaft. The slag-removing plates on the outside of the bucket body remove slag by pulling it back to the inside of the bucket body.

[0013] As a further aspect of this utility model: in order to allow the slag-removing plate to fit the furnace wall to a certain extent, when the hopper is closed, the outer edge of the slag-removing plate is set vertically, and this outer vertical edge has a better slag-scraping effect on the curved furnace wall.

[0014] As a further solution of this utility model: In order to improve the slag removal effect of the slag removal plate, the slag removal plate is composed of a main body and a folded edge. The main body and the folded edge are integrated into one structure, and the main body and the folded edge are at a certain angle. The folded angle formed between the main body and the folded edge improves the effect of rotating and removing slag, because the folded angle has the effect of preventing slag from falling off.

[0015] The beneficial effects of this utility model are as follows: This solution sets up a wall-mounted slag-removing device on the basis of the grabbing structure of the traditional slag-removing machine. Under the drive of the rotating motor, this structure will drive the central shaft to rotate, and then make the slag-removing plate rotate around the central shaft. The slag-removing plate on the outside of the bucket body will drive the slag and rotate it back to the inside of the bucket body to achieve wall-mounted slag removal, thereby obtaining a better slag removal effect.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the sliding forearm in this utility model.

[0019] Figure 3 This is a schematic diagram of the grab bucket in this utility model.

[0020] Figure 4 This is a schematic diagram of the slag-removing plate in this utility model.

[0021] In the diagram: 1-Column, 2-Boom transverse guide rail, 3-Boom rotating seat, 4-Sliding boom, 5-Shoulder boom vertical guide rail, 6-Drive gear, 7-Linkage gear, 8-Mounting seat, 9-Transverse push-pull drive device, 10-Lifting drive device, 11-Sliding shoulder, 12-Grab bucket, 13-Wall-adhering slag-removing device, 14-Opening and closing drive assembly, 15-Heat insulation plate, 16-Hinge seat, 17-Tie rod, 18-Shoulder boom extension plate, 19-Bucket body, 20-Extension plate connecting ear, 21-Tie rod connecting ear, 22-Splash guard, 23-Rotating motor, 24-Slag-removing drive gear, 25-Gear disc, 26-Slag inlet, 27-Slag-removing plate, 28-Folded edge, 29-Main body, 30-Central shaft, 31-Boom rotation drive motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The metallurgical slag removal device described in this embodiment includes a support assembly, a telescopic boom assembly, a lifting arm assembly, and a grab bucket assembly. The support assembly serves as the support for the entire device and is fixedly installed on a rigid surface, such as a concrete floor. The telescopic boom assembly is mounted on the support assembly and can achieve horizontal linear extension and retraction, thereby adjusting the horizontal distance between the boom and the metallurgical furnace. The lifting arm assembly is mounted on the telescopic boom assembly and can achieve vertical linear extension and retraction, thereby adjusting the vertical distance between the lifting arm and the metallurgical furnace. The grab bucket assembly is mounted on the lifting arm assembly and can perform a grabbing action to remove slag. Simultaneously, the grab bucket assembly can adjust its spatial position relative to the metallurgical furnace under the action of the telescopic boom assembly and the lifting arm assembly.

[0024] Please see Figures 1-4 The support assembly includes a steel column 1 with a base at the bottom. The base has screw holes and is fixed to a rigid mounting surface using bolts.

[0025] The telescopic boom assembly includes a boom transverse guide rail 2, a boom rotating seat 3, a sliding boom 4, a drive gear 6, a linkage gear 7, a mounting base 8, a transverse push-pull drive device 9, and a boom rotation drive motor 31. The boom rotating seat 3 is installed at the top of the column 1. The boom rotating seat 3 consists of a bearing seat with built-in bearings and a rotating body. The bearing seat is fixed to the column 1 by bolts, and the rotating body is rotatably assembled with the bearing inside the bearing seat. One end of the boom transverse guide rail 2 is fixed to the rotating body by bolts. At this time, the boom transverse guide rail 2 is rotatable relative to the bearing seat and relative to the column 1.

[0026] A mounting base 8 is bolted to the boom transverse guide rail 2. The mounting base 8 has a mounting position on which the boom rotation drive motor 31 is bolted. The drive shaft of the boom rotation drive motor 31 is fixedly fitted with a drive gear 6. The drive gear 6 meshes with the linkage gear 7, which is sleeved on the column 1. The linkage gear 7 is located below the boom rotating seat 3. Based on this structure, when the drive gear 6 rotates, due to the linkage effect between it and the linkage gear 7, the boom transverse guide rail 2 rotates around the boom rotating seat.

[0027] The boom transverse guide rail 2 is provided with a transverse sliding groove, and the sliding boom 4 is slidably or rollably installed in the transverse sliding groove; at the same time, the transverse push-pull drive device 9 is fixed on the boom transverse guide rail 2, and the push-pull rod of the transverse push-pull drive device 9 is fixedly connected to the sliding boom 4 by bolts; under the push-pull action of the transverse push-pull drive device 9, the sliding boom 4 can move linearly along the transverse sliding groove of the boom transverse guide rail 2; the transverse push-pull drive device 9 can be a linear drive device such as a hydraulic push rod, a cylinder or an electric push rod;

[0028] The lifting arm assembly includes a vertical guide rail 5, a lifting drive device 10, a sliding arm 11, and an arm extension plate 18. The vertical guide rail 5 is vertically fixed to the end of the sliding arm 4 away from the arm rotating seat 3 by bolts. A vertical groove is provided on the vertical guide rail 5, and the sliding arm 11 is slidably or rollingly installed in the vertical groove. The lifting drive device 10 is fixed to the vertical guide rail 5 by bolts, and the push-pull rod of the lifting drive device 10 is fixedly connected to the sliding arm 11 by bolts. Under the pushing and pulling action of the lifting drive device 10, the sliding arm 11 can move linearly along the vertical groove of the vertical guide rail 5. The lifting drive device 10 can be a linear drive device such as a hydraulic push rod, a cylinder, or an electric push rod. The bottom surface of the sliding arm 11 is provided with an installation chamber extending from bottom to top. At the same time, two opposing arm extension plates 18 are provided on both sides of the bottom opening of the installation chamber. The arm extension plates 18 and the sliding arm 11 are integrated into one piece.

[0029] The grab bucket assembly includes a grab bucket 12 and a wall-mounted slag-removing device 13. The grab bucket 12 includes an opening and closing drive assembly 14, a heat insulation plate 15, a hinge seat 16, two pull rods 17, and two bucket bodies 19. The heat insulation plate 15 is horizontally fixed inside the installation chamber, dividing the installation chamber into upper and lower spaces. The opening and closing drive assembly 14 is located in the installation chamber above the heat insulation plate 15, and is fixedly connected to the sliding arm 11 by bolts. A through hole is provided at the center of the heat insulation plate 15, through which the drive shaft of the opening and closing drive assembly 14 passes to the installation chamber below the heat insulation plate 15. The hinge seat 16 is fixed to the lower end of the drive shaft of the opening and closing drive assembly 14, and a pull rod is hinged to the left and right ends of the hinge seat 16, respectively. A pull rod 17 is provided, with its lower end protruding from the bottom opening of the mounting chamber. Each bucket 19 is integrally formed with an extension plate connecting ear 20 and a pull rod connecting ear 21. The bucket 19 is hinged to the forearm extension plate 18 via the extension plate connecting ear 20 and a pin, and simultaneously, the bucket 19 is hinged to the lower end of the corresponding pull rod 17 via the pull rod connecting ear 21 and a pin. The hinge structure between the bucket 19 and the forearm extension plate 18 enables the opening and closing of the two buckets 19, while the hinge structure between the bucket 19 and the pull rod 17 drives the opening and closing of the two buckets 19. The push and pull action of the opening and closing drive assembly 14 drives the pull rod 17 to act on the bucket 19, causing the bucket 19 to open and close to grab. In this embodiment, the slag-removing device 13 is used to grab slag that is close to the furnace wall. When grabbing, the two buckets 19 are closed, and a slag-accommodating space is formed inside the two closed buckets 19.

[0030] The wall-mounted slag-removing device 13 includes a splash guard 22, a rotating motor 23, a slag-removing drive gear 24, a gear disc 25, a slag-removing plate 27, and a central shaft 30. A slag inlet 26 is provided on one of the two buckets 19, and this inlet 26 is connected to the slag-containing space. The inlet 26 is positioned slightly above the middle of the bucket 19 to prevent liquid from entering during slag grabbing by the grab bucket 12. The wall-mounted slag-removing device 13 is located at the slag inlet 26, with the splash guard 22 located inside the inlet 26 and welded to the bucket 19. The rotating motor 23, the slag-removing drive gear 24, and the gear disc 25 are located above the splash guard 22. This design prevents molten steel from splashing. The rotating motor 23 is bolted to the splash guard 22. The shaft end of 3 is fixedly connected to the slag-removing drive gear 24, which meshes with the gear disk 25. A shaft hole is formed on the splash guard 22, through which a central shaft bearing is embedded. The central shaft 30 passes through the shaft hole and is rotatably fitted with the central shaft bearing. The gear disk 25 is fixedly assembled on the upper end of the central shaft 30. Multiple slag-removing plates 27 are arranged at the position of the splash guard 22. The slag-removing plates 27 are arranged at equal angles in the circumferential direction and are fixedly connected to the central shaft 30. At the same time, several slag-removing plates 27 pass through the slag inlet 26 to the outer side of the bucket body 19. Under the driving action of the rotating motor 23, this structure will drive the central shaft 30 to rotate, and then make the slag-removing plates 27 rotate around the central shaft 30. The slag-removing plates 27 on the outer side of the bucket body 19 remove slag by driving the slag and rotating it to the inner side of the bucket body 19.

[0031] In order to ensure that the slag-scraping plate 27 can fit against the furnace wall to a certain extent, when the bucket body 19 is closed, the outer edge of the slag-scraping plate 27 is set vertically, and this outer vertical edge has a better slag-scraping effect for the curved furnace wall.

[0032] To improve the slag removal effect of the slag removal plate 27, the slag removal plate 27 is composed of a main body 29 and a folded edge 28. The main body 29 and the folded edge 28 are integrated into one piece, and the main body 29 and the folded edge 28 are at a certain angle. The angle formed between the main body 29 and the folded edge 28 is used to improve the rotational slag removal effect, because the angle has the effect of preventing slag from falling off.

[0033] The working principle of this utility model is as follows: the hinge structure between the bucket body 19 and the forearm extension plate 18 is used to realize the opening and closing action of the two bucket bodies 19, and the hinge structure between the bucket body 19 and the pull rod 17 is used to drive the opening and closing action of the two bucket bodies 19. The push and pull action of the opening and closing drive component 14 drives the pull rod 17 to act on the bucket body 19, so that the bucket body 19 opens and closes to grab. At the same time, under the driving action of the rotating motor 23, the central shaft 30 will be driven to rotate, which in turn causes the slag removal plate 27 to rotate around the central shaft 30. The slag removal plate 27 on the outside of the bucket body 19 drives the slag and rotates to the inside of the bucket body 19 to achieve slag removal against the wall.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A metallurgical slag removal device, characterized in that, The slag removal device includes a support assembly, a telescopic boom assembly, a lifting arm assembly, and a grab bucket assembly. The telescopic boom assembly is mounted on the support assembly and can achieve horizontal linear extension and retraction. The lifting arm assembly is mounted on the telescopic boom assembly. The grab bucket assembly is mounted on the lifting arm assembly. The grab bucket assembly includes a grab bucket and a wall-mounted slag-removing device. The grab bucket includes an opening and closing drive assembly, a heat insulation plate, a hinge seat, two tie rods, and two bucket bodies. The two bucket bodies are in a closed state, and the interior of the two closed bucket bodies forms a slag-containing space. The wall-mounted slag-removing device includes a splash guard, a rotating motor, a slag-removing drive gear, a gear disc, a slag-removing plate, and a central shaft. A slag inlet is opened on one of the two bucket bodies, and this slag inlet is connected to the slag-containing space. The slag removal device is located at the slag inlet, with a splash guard positioned inside the inlet and welded to the bucket body. A rotating motor, a slag-dispensing drive gear, and a gear disc are positioned above the splash guard. The rotating motor is fixed to the splash guard, and the shaft end of the rotating motor is fixedly connected to the slag-dispensing drive gear, which meshes with the gear disc. A vertically penetrating shaft hole is provided on the splash guard, into which a central shaft bearing is embedded. The central shaft passes through the shaft hole and rotates in conjunction with the central shaft bearing. The gear disc is fixedly mounted on the upper end of the central shaft. Multiple slag-dispensing plates are located at the splash guard position, spaced at equal angles circumferentially and fixedly connected to the central shaft. Several slag-dispensing plates extend through the slag inlet to the outer side of the bucket body.

2. The metallurgical slag removal device according to claim 1, characterized in that, The support assembly includes a steel column with a base at the bottom, on which screw holes are provided.

3. The metallurgical slag removal device according to claim 2, characterized in that, The telescopic boom assembly includes a boom transverse guide rail, a boom rotating seat, a sliding boom, a drive gear, a linkage gear, a mounting base, a transverse push-pull drive device, and a boom rotation drive motor. The boom rotating seat is installed at the top of the column. The boom rotating seat consists of a bearing seat with built-in bearings and a rotating body. The bearing seat is fixed to the column, and the rotating body is rotatably assembled with the bearings inside the bearing seat. One end of the boom transverse guide rail is fixed to the rotating body. A mounting base is fixed on the boom transverse guide rail, and a mounting position is provided on the mounting base. The boom rotation drive motor is fixed at the mounting position. The drive shaft of the boom rotation drive motor is fixedly equipped with a drive gear, which meshes with the linkage gear. The linkage gear is sleeved on the column and is located below the boom rotation seat. The boom transverse guide rail is provided with a transverse sliding groove, and the sliding boom is slidably or rollingly installed in the transverse sliding groove; at the same time, the transverse push-pull drive device is fixed on the boom transverse guide rail, and the push-pull rod of the transverse push-pull drive device is fixedly connected to the sliding boom by bolts.

4. The metallurgical slag removal device according to claim 1, characterized in that, The lifting arm assembly includes a vertical guide rail, a lifting drive device, a sliding arm, and an arm extension plate. The vertical guide rail is vertically fixed to the end of the sliding arm away from the rotating seat of the main arm. A vertical groove is provided on the vertical guide rail, and the sliding arm is slidably or tumbled within the groove. The lifting drive device is fixed on the vertical guide rail, and the push-pull rod of the lifting drive device is fixedly connected to the sliding arm. The bottom surface of the sliding arm has an installation chamber extending from bottom to top, and two opposing arm extension plates are provided on both sides of the bottom opening of the installation chamber. The arm extension plates and the sliding arm are integrated into one piece.

5. The metallurgical slag removal device according to claim 4, characterized in that, The heat insulation plate is horizontally fixed inside the installation chamber, dividing the installation chamber into upper and lower spaces. The opening and closing drive assembly is located in the installation chamber above the heat insulation plate and is fixedly connected to the sliding arm. A through hole is provided in the center of the heat insulation plate, through which the drive shaft of the opening and closing drive assembly passes to the installation chamber below the heat insulation plate. A hinge seat is fixed to the lower end of the drive shaft of the opening and closing drive assembly, and a pull rod is hinged to the left and right ends of the hinge seat, with the lower end of the pull rod protruding from the bottom opening of the installation chamber. Each bucket has an integrally formed extension plate connecting ear and a pull rod connecting ear. The bucket is hinged to the arm extension plate through the extension plate connecting ear and the pin, and the bucket is hinged to the lower end of the corresponding pull rod through the pull rod connecting ear and the pin.

6. The metallurgical slag removal device according to claim 1, characterized in that, The slag removal plate consists of a main body and a folded edge. The main body and the folded edge are integrated into one piece, and the main body and the folded edge are at an angle to each other.

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