CN215440534U - Automatic steelmaking of steelmaking converter is with auxiliary material interpolation device - Google Patents

Abstract

The utility model discloses an automatic auxiliary material adding device for steelmaking of a steelmaking converter, which comprises a mounting plate, a lifting mechanism, a mounting platform, a conveyor, a stirring shaft, a feeding hopper and a baffle plate, wherein movable wheels are fixed at the bottom of the mounting plate through mounting columns, the lifting mechanism for improving the overall height of the conveyor is mounted at the top end of the mounting plate, the lifting mechanism comprises a through frame, a connecting column, a mounting groove, a connecting rod, a mounting seat, a transmission shaft group, a driven gear group, a transmission rod, a clamping block, a rotating motor and a driving gear, the bottom of the through frame is fixedly connected with the top end of the mounting plate, the automatic auxiliary material adding device for steelmaking of the steelmaking converter is provided with the movable wheels, the whole device is moved to the position of the converter through the movable wheels for auxiliary material adding treatment, the whole device is prevented from being fixed at the same position, the auxiliary device is prevented from moving the whole auxiliary device to the converter in the auxiliary material adding process, thus, the trouble is caused and the whole auxiliary material adding process is complicated.

Description

Automatic steelmaking of steelmaking converter is with auxiliary material interpolation device

Technical Field

The utility model relates to the technical field of automatic steelmaking of steelmaking converters, in particular to an auxiliary material adding device for automatic steelmaking of a steelmaking converter.

Background

The raw materials of converter steelmaking mainly utilize waste steel, newly produced molten iron, still a part of ferroalloy, etc., fuse them together and carry on the high-temperature heating, in the course of steel production, the molten iron itself contains certain heat, at the same time the temperature of the converter is also in the course of heating and raising, when the temperature in the converter reaches the chemical temperature of reaction of scrap steel and ferroalloy, the chemical reaction between them also can give off heat, all energy can make these substances fuse into molten steel, these combination is converter steelmaking, with the continuous progress and development of the industrial society, the existing converter steelmaking technology can't meet the production requirement of modern steel enterprises, the steel production also needs the application and popularization of computer information and automatic control technology, in converter steelmaking use computer information and automatic control, can realize some complicated operations that manual work can't be controlled accurately, therefore, the quality of the molten steel in the converter is improved, qualified steel is produced, the economic benefit of steel enterprises is improved, the auxiliary material is added and the blowing process is controlled purposefully in the existing automatic steel making process, the auxiliary material consumption is reduced, the smelting efficiency is improved, and the quality of the molten steel is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an auxiliary material adding device for automatic steelmaking of a steelmaking converter aiming at the defects of the prior art, and aims to solve the problems that the auxiliary material can be added only by rotating and inclining the converter proposed in the background art, so that the auxiliary material is troublesome and corrosion of the furnace wall is easily caused, the service life of the converter is shortened, and meanwhile, the auxiliary material cannot be accurately added by the conventional auxiliary material adding device in the auxiliary material adding process, so that the blowing process and the auxiliary material consumption are easily influenced by too much or too little auxiliary material addition.

In order to achieve the purpose, the utility model provides the following technical scheme: an auxiliary material adding device for automatic steelmaking of a steelmaking converter comprises a mounting plate, a lifting mechanism, a mounting table, a conveyor, a stirring shaft, a feeding hopper and a baffle plate, wherein movable wheels are fixed at the bottom of the mounting plate through mounting columns, a hydraulic cylinder is fixed on the left side of the top end of the mounting table, a first concave block is fixed on the right side of the top end of the mounting table, the discharging hopper is fixedly embedded below the left side of the conveyor, a connecting shaft is fixedly welded on the right side of the conveyor, stirring blades are fixedly welded on the two sides of the stirring shaft, the right side of the stirring shaft penetrates through the inner wall of the right side of the conveyor and extends to the outer wall of the right side of the conveyor, the right side of the stirring shaft is fixedly connected with the output end of an output motor, the output motor is fixed on the left side of the conveyor through hexagonal bolts and is electrically connected with a controller through electric wires, scales are embedded and fixed on the surface of the feeding hopper, and a second concave block group is fixedly embedded below the feeding hopper, the left side of the baffle penetrates through the outer wall of the right side of the second concave block group, extends into the conveyor and is clamped and connected with the left groove of the second concave block group, the conveyor penetrates through the first concave block groove through a connecting shaft, the right side of the conveyor is movably connected with the first concave block, meanwhile, the left side of the conveyor is fixedly connected with the output end of a hydraulic cylinder through a connecting block, the hydraulic cylinder is electrically connected with a controller through an electric wire, and the bottom of the mounting table is fixedly connected with the top end of a lifting mechanism;

and the lifting mechanism is used for improving the overall height of the conveyor and is arranged at the top end of the mounting plate.

Preferably, the lifting mechanism comprises a through frame, a connecting column, a mounting groove, a connecting rod, a mounting seat, a transmission shaft group, a driven gear group, a transmission rod, a fixture block, a rotating motor and a driving gear, the bottom of the through frame is fixedly connected with the top end of the mounting plate, the bottom of the connecting column penetrates through the mounting groove, the connecting rod is fixed inside the mounting groove, the bottom of the connecting column penetrates through the through frame and extends into the through frame, the top end of the connecting column is fixedly connected with the bottom of the mounting table, the mounting seat is fixed at the top end of the mounting plate, the left side of the transmission shaft group penetrates through the mounting seat and is fixed with the driven gear group, the top end of the transmission rod is fixed with the fixture block, the fixture block penetrates through the connecting rod, the fixture block is rotatably connected with the connecting rod, the bottom of the transmission rod is fixedly connected with the right side of the transmission shaft group, the output end of the rotating motor is fixed with the driving gear, and the rotating motor is fixed at the top end of the mounting plate through a hexagon bolt, meanwhile, the rotating motor is electrically connected with the controller through an electric wire, and the driving gear is meshed with the driven gear set.

Preferably, the number of the movable wheels is 4, and the movable wheels are symmetrically arranged about the central line of the mounting plate.

Preferably, the feed hopper, the second concave block group and the baffle form a sliding mechanism, and the sliding distance range of the sliding mechanism is 2-22 cm.

Preferably, the connection shape of the transmission shaft group, the driven gear group and the transmission rod is in a half-square-shaped shape.

Preferably, the rotating motor, the driving gear, the transmission shaft group, the driven gear group and the transmission rod form a rotating lifting mechanism, and the lifting distance range of the rotating lifting mechanism is 0-30 cm.

Compared with the prior art, the utility model has the beneficial effects that: the auxiliary material adding device for the automatic steel making of the steel making converter,

(1) the auxiliary material adding device is provided with a lifting mechanism, a driving gear is driven to move through a rotating motor, a driven gear set and a transmission shaft set are driven to move relatively through the driving gear, a connecting column and a through frame are sequentially driven to move relatively, so that the lifting treatment is carried out on a conveyor, the phenomenon that the auxiliary material is added only by rotating and inclining the whole converter in the auxiliary material adding process is avoided in sequence, the trouble is caused, the corrosion of the converter wall is easily increased, the service life of the converter is shortened, and the auxiliary material is conveniently added to the converters with different heights by driving the conveyor to lift through the rotating motor;

(2) the hydraulic cylinder and the connecting shaft are arranged, the conveyor is driven to move by the hydraulic cylinder, and the conveyor drives the connecting shaft and the first concave groove to move relatively, so that the left inclination angle of the conveyor is adjusted, auxiliary materials in the conveyor are sequentially and conveniently conveyed into the converter directly, the phenomenon that the whole conveyor is fixed at the same height is avoided, the auxiliary materials in the conveyor cannot be conveyed into the converter accurately easily, the normal smelting effect of steel in the converter is influenced, the auxiliary materials drop on the working ground, the auxiliary material pollution is caused, and the feeding treatment cannot be carried out;

(3) the auxiliary material feeding device is provided with scales and a baffle, auxiliary materials passing through the feeding hopper are conveniently conveyed inside the conveyor to be conveyed through manually moving the relative distance between the baffle and the second concave block group, the auxiliary materials are conveniently observed and processed through the scales in the auxiliary material adjusting process through the connection between the baffle and the second concave block, the number of the auxiliary materials which cannot be accurately added in the auxiliary material adding process is avoided, and the blowing process and the auxiliary material consumption are easily influenced due to the fact that the auxiliary materials are added too much or too little;

(4) the movable wheels are arranged, the whole equipment is moved to the position of the converter through the movable wheels to carry out auxiliary material adding treatment, the whole equipment is prevented from being fixed at the same position, the whole auxiliary material adding equipment is required to be moved to the position of the converter through auxiliary equipment in the auxiliary material adding process, the trouble is caused, the whole auxiliary material adding process is complicated, and the whole working efficiency is reduced;

(5) be provided with the output motor, drive the (mixing) shaft motion through the output motor to drive the stirring leaf motion through the (mixing) shaft, stir the transport processing to the auxiliary material that gets into the inside conveyer, thereby avoid getting into the inside jam of conveyer that causes of the too much auxiliary material of conveyer, influence the auxiliary material in proper order and normally add the time, thereby influence the normal effect of smelting of steel and iron.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the driving gear structure of the present invention;

FIG. 4 is a schematic front view of the connecting column of the present invention;

fig. 5 is a schematic top view of the driven gear set, the transmission shaft set and the transmission rod of the present invention.

In the figure: 1. the mounting panel, 2, the loose wheel, 3, elevating system, 301, lead to the frame, 302, the spliced pole, 303, the mounting groove, 304, the connecting rod, 305, the mount pad, 306, the transmission shaft group, 307, driven gear set, 308, the transfer line, 309, the fixture block, 311, the rotating electrical machines, 312, the driving gear, 4, the mount table, 5, the pneumatic cylinder, 6, first concave block, 7, the conveyer, 8, go out the hopper, 9, the connecting axle, 10, the (mixing) shaft, 11, stirring leaf, 12, output motor, 13, the feeder hopper, 14, the scale, 15, the second concave block group, 16, the baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an automatic auxiliary material adding device for steelmaking of a steelmaking converter is disclosed, as shown in figures 1 and 2, movable wheels 2 are fixed at the bottom of a mounting plate 1 through mounting columns, 4 movable wheels 2 are arranged, the movable wheels 2 are symmetrically arranged about the central line of the mounting plate 1, the whole device is moved to the position of the converter through the movable wheels 2 to carry out auxiliary material adding treatment, the situation that the whole device is fixed at the same position and needs to be moved to the converter through auxiliary equipment in the auxiliary material adding process is avoided, so that not only is trouble caused, but also the complexity of the whole auxiliary material adding process is caused, the whole working efficiency is reduced, 4 movable wheels 2 are arranged to keep the stability and balance of the whole device in the moving process, a hydraulic cylinder 5 is fixed on the left side of the top end of the mounting table 4, a first concave block 6 is fixed on the right side of the top end of the mounting table 4, and a discharge hopper 8 is embedded and fixed below the left side of the conveyor 7, a connecting shaft 9 is fixedly welded on the right side of the conveyor 7, stirring blades 11 are fixedly welded on two sides of a stirring shaft 10, the right side of the stirring shaft 10 penetrates through the right side inner wall of the conveyor 7 and extends to the right side outer wall of the conveyor 7, meanwhile, the right side of the stirring shaft 10 is fixedly connected with the output end of an output motor 12, the output motor 12 is fixedly arranged on the left side of the conveyor 7 through a hexagonal bolt, the output motor 12 is electrically connected with a controller through an electric wire, scales 14 are embedded and fixed on the surface of a feeding hopper 13, a second concave block group 15 is embedded and fixed below the feeding hopper 13, the left side of a baffle 16 penetrates through the right side outer wall of the second concave block group 15 and extends into the conveyor 7 to be connected with a left side groove of the second concave block group 15 in a clamping manner, the feeding hopper 13, the second concave block group 15 and the baffle 16 form a sliding mechanism, the sliding distance range of the sliding mechanism is 2-22cm, and the relative distance between the baffle 16 and the second concave block group 15 is manually moved, therefore, the auxiliary materials passing through the inside of the feed hopper 13 are conveniently conveyed to the inside of the conveyor 7 for conveying treatment, the quantity and the speed of the auxiliary materials falling to the inside of the conveyor 7 are controlled by manually adjusting the relative distance between the baffle 16 and the second concave block group 15, the auxiliary materials are sequentially and effectively monitored and added, the sliding interval distance range of the integral sliding mechanism is 20cm, the sliding interval distance is the transverse length of the integral feed hopper 13, if the maximum sliding distance interval is reached, the auxiliary materials can conveniently enter the inside of the conveyor 7 through the hopper 13 for conveying treatment, the conveyor 7 penetrates through the groove of the first concave block 6 through the connecting shaft 9, the right side of the conveyor 7 is movably connected with the first concave block 6, meanwhile, the left side of the conveyor 7 is fixedly connected with the output end of the hydraulic cylinder 5 through the connecting block, and the hydraulic cylinder 5 is electrically connected with the controller through an electric wire, 3 bottoms of mount table and 2 top fixed connection of elevating system drive the (mixing) shaft 10 through output motor 12 and move to drive the motion of stirring leaf 11 through (mixing) shaft 10, stir the transport processing to the auxiliary material that gets into 7 insides of conveyer, thereby avoid getting into 7 inside auxiliary materials of conveyer and too much cause 7 inside clogs up of conveyer, influence the auxiliary material in proper order and normally add the time, thereby influence the normal effect of smelting of steel and iron.

As shown in fig. 3, 4 and 5, the lifting mechanism 3 for increasing the overall height of the conveyor 7 is installed at the top end of the installation plate 1, and the lifting mechanism 3 includes a through frame 301, a connection column 302, an installation groove 303, a connection rod 304, an installation seat 305, a transmission shaft group 306, a driven gear group 307, a transmission rod 308, a fixture block 309, a rotating motor 311 and a driving gear 312, the bottom of the through frame 301 is fixedly connected with the top end of the installation plate 1, the bottom of the connection column 302 is penetrated through the installation groove 303, the connection rod 304 is fixed inside the installation groove 303, the bottom of the connection column 302 is penetrated through the through frame 301 and extends into the through frame 301, the top end of the connection column 302 is fixedly connected with the bottom of the installation table 4, the installation seat 305 is fixed at the top end of the installation plate 1, the driven gear group 307 is penetrated through the installation seat 305 at the left side of the transmission shaft group 306, the fixture block 309 is fixed at the top end of the transmission rod 308, the fixture block 309 is penetrated through the connection rod 304, and the fixture block 309 is rotatably connected with the connection rod 304, the bottom of the transmission rod 308 is fixedly connected with the right side of the transmission shaft group 306, the connection shape of the transmission shaft group 306, the driven gear group 307 and the transmission rod 308 is in a half-round shape, so that the transmission rod 308 is conveniently driven by the driven gear group 307 to move, the transmission rod 308 drives the connecting column 302 and the through frame 301 to move relatively, the height between the conveyor 7 and the converter is changed, the connection shape of the transmission shaft group 306, the driven gear group 307 and the transmission rod 308 is in a half-round shape, so that the simplicity and the practicability of connection among the three are reflected, the symmetry, the attractiveness and the economy of connection among the three are reflected in sequence, the driving gear 312 is fixed at the output end of the rotating motor 311, the rotating motor 311 is fixed at the top end of the mounting plate 1 through a hexagon bolt, meanwhile, the rotating motor 311 is electrically connected with the controller through an electric wire, and the driving gear 312 is meshed with the driven gear group 307, the rotating motor 311, the driving gear 312, the transmission shaft group 306, the driven gear group 307 and the transmission rod 308 form a rotating lifting mechanism, the lifting distance range of the rotating lifting mechanism is 0-30cm, the driving gear is driven to move 312 by the rotating motor 311, the driven gear group 307 and the transmission shaft group 306 are driven to move relatively by the driving gear 312, the connecting column 302 and the through frame 301 are sequentially driven to move relatively, so that the lifting treatment is carried out on the conveyor 7, the auxiliary materials can be added by sequentially avoiding the need of rotating and inclining the whole converter in the auxiliary material adding process, so that not only is trouble but also the corrosion of the converter wall is easily caused, the service life of the converter is shortened, the maximum lifting distance of the whole lifting mechanism is 30cm, when the maximum lifting distance is reached, the fixture block 309 and the transmission rod 308 are in contact with the through frame 301, so that the whole equipment is limited, avoiding exceeding the running stroke of the whole lifting mechanism and further causing the connecting column 302 to be separated from the through frame 301.

The working principle is as follows: when the auxiliary material adding device for automatic steel making of the steel making converter is used, a certain pushing force is applied to the conveyor 7 manually, the conveyor 7 drives the mounting table 4 to move in the same direction, the mounting table 4 drives the through frame 301 to move in the same direction, the through frame 301 drives the mounting plate 1 to move in the same direction, the mounting plate 1 drives the movable wheel 2 to move, when the whole device moves to a corresponding position, a certain pulling force is applied to the conveyor 7 manually again, the movable wheel 2 stops moving, when the height of the conveyor 7 needs to be adjusted, the rotary motor 311 is started through the controller, the driving gear 312 is driven to move in the working process of the rotary motor 311, the driving gear 312 drives the transmission shaft group 306 to move in the movement process, the transmission shaft group 306 moves relative to the mounting seat 305 in the movement process, the transmission shaft group 306 drives the transmission rod 308 to move upwards in the movement process, and the fixture block of the transmission rod 308 drives 309 to move in the same direction, the fixture block 309 drives the connecting rod 304 to move in the same direction, the fixture block 309 moves in the same direction as the mounting groove 303 during the movement, the connecting rod 304 drives the connecting column 302 to move in the same direction during the upward movement, the connecting column 302 moves relative to the through frame 301 during the upward movement, the mounting table 4 is driven to move in the same direction during the upward movement of the connecting column 302 in sequence, when the conveyor 7 moves to a certain height, the rotating motor 311 is stopped by the controller again, the hydraulic cylinder 5 is started by the controller in sequence, the left side of the conveyor 7 and the left side of the mounting table 4 are driven to move relative to each other during the operation of the hydraulic cylinder 5, the connecting shaft 9 and the first concave block 6 are driven to move relative to each other during the movement of the conveyor 7, when the left side of the conveyor 7 moves to a certain height, the hydraulic cylinder 5 is stopped by the controller, then the auxiliary material is manually placed in the feeding hopper 13, and the auxiliary material entering the feeding hopper 13 falls on the top end of the baffle 16, and the scale 14 is observed by eyes, so as to record the placing scale 14 of the auxiliary materials, the baffle 16 is manually held in sequence to apply a certain pulling force, at the moment, the baffle 16 and the second concave block group 15 move relatively, the auxiliary materials fall into the conveyor 7 through the baffle 16, when the auxiliary materials completely fall into the conveyor 7, a certain pushing force is manually applied to the baffle 16 again, at the moment, the baffle 16 and the second concave block group 15 move relatively, the pushing force is stopped to be applied when the baffle 16 and the second concave block group 15 are in groove contact, the output motor 12 is sequentially controlled to be started, the stirring shaft 10 is driven to move in the working process of the output motor 12, the stirring shaft 10 drives the stirring blades 11 to move, the auxiliary materials are driven to move towards the discharge hopper 8 in the moving process of the stirring blades 11, when the auxiliary materials completely fall into the converter through the discharge hopper 8, the output motor 12 is stopped to work through the controller, and when the auxiliary materials are required to be added, the steps and the processes are repeated, after the auxiliary materials are added, the corresponding equipment is started again through the controller to carry out recovery processing on the whole equipment, and the whole equipment is moved to the corresponding position through the steps and the working procedures in sequence and placed well, so that the whole operation is completed, and the content which is not described in detail in the specification belongs to the prior art which is well known by the professional in the field.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims (6)

1. The utility model provides an automatic steelmaking of steelmaking converter adds device with auxiliary material, includes mounting panel (1), elevating system (3), mount table (4), conveyer (7), (mixing) shaft (10), feeder hopper (13) and baffle (16), its characterized in that:

mounting panel (1), mounting panel (1) bottom is fixed with loose wheel (2) through the erection column, mount table (4) top left side is fixed with pneumatic cylinder (5), and mount table (4) top right side is fixed with first concave block (6), inlay below conveyer (7) left side and be fixed with out hopper (8), conveyer (7) right side welded fastening has connecting axle (9), stirring (shaft (10) both sides welded fastening has stirring leaf (11), and (stirring) shaft (10) right side runs through conveyer (7) right side inner wall and extend in conveyer (7) right side outer wall, and simultaneously (stirring) shaft (10) right side and output motor (12) output fixed connection, output motor (12) are fixed in conveyer (7) left side through hexagonal bolt, and output motor (12) pass through electric wire and controller electric connection, feeder hopper (13) surface inlay and be fixed with scale (14), a second concave block group (15) is fixedly embedded below the feed hopper (13), the left side of the baffle (16) penetrates through the outer wall of the right side of the second concave block group (15) and extends into the interior of the conveyor (7) to be clamped and connected with the left side groove of the second concave block group (15), the conveyor (7) penetrates through the groove of the first concave block (6) through a connecting shaft (9), the right side of the conveyor (7) is movably connected with the first concave block (6), meanwhile, the left side of the conveyor (7) is fixedly connected with the output end of the hydraulic cylinder (5) through a connecting block, the hydraulic cylinder (5) is electrically connected with a controller through an electric wire, and the bottom of the mounting table (4) is fixedly connected with the top end of the lifting mechanism (3);

and the lifting mechanism (3) is used for improving the overall height of the conveyor (7) and is arranged at the top end of the mounting plate (1).

2. The automatic steelmaking auxiliary material adding device for the steelmaking converter of claim 1, wherein: the lifting mechanism (3) comprises a through frame (301), a connecting column (302), a mounting groove (303), a connecting rod (304), a mounting seat (305), a transmission shaft group (306), a driven gear group (307), a transmission rod (308), a fixture block (309), a rotating motor (311) and a driving gear (312), wherein the bottom of the through frame (301) is fixedly connected with the top end of the mounting plate (1), the bottom of the connecting column (302) is penetrated through the mounting groove (303), the connecting rod (304) is fixed inside the mounting groove (303), the bottom of the connecting column (302) is penetrated through the through frame (301) and extends into the through frame (301), the top end of the connecting column (302) is fixedly connected with the bottom of the mounting table (4), the mounting seat (305) is fixed at the top end of the mounting plate (1), the left side of the transmission shaft group (306) is penetrated through the mounting seat (307) and is fixed with the driven gear group (307), the top end of the transmission rod (308) is fixed with a clamping block (309), the clamping block (309) penetrates through the connecting rod (304), the clamping block (309) is rotatably connected with the connecting rod (304), the bottom of the transmission rod (308) is fixedly connected with the right side of the transmission shaft group (306), the output end of the rotating motor (311) is fixed with a driving gear (312), the rotating motor (311) is fixed at the top end of the mounting plate (1) through a hexagon bolt, meanwhile, the rotating motor (311) is electrically connected with the controller through an electric wire, and the driving gear (312) is meshed with the driven gear group (307).

3. The automatic steelmaking auxiliary material adding device for the steelmaking converter of claim 1, wherein: the movable wheels (2) are arranged in 4 numbers, and the movable wheels (2) are symmetrically arranged relative to the central line of the mounting plate (1).

4. The automatic steelmaking auxiliary material adding device for the steelmaking converter of claim 1, wherein: the feed hopper (13), the second concave block group (15) and the baffle (16) form a sliding mechanism, and the sliding distance range of the sliding mechanism is 2-22 cm.

5. The automatic steelmaking auxiliary material adding device for the steelmaking converter of claim 2, wherein: the connection shapes of the transmission shaft group (306), the driven gear group (307) and the transmission rod (308) are in a half-square-shaped shape.

6. The automatic steelmaking auxiliary material adding device for the steelmaking converter of claim 2, wherein: the rotating motor (311), the driving gear (312), the transmission shaft group (306), the driven gear group (307) and the transmission rod (308) form a rotating lifting mechanism, and the lifting distance range of the rotating lifting mechanism is 0-30 cm.

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