Raw material proportioning device for low-carbon silicon-manganese alloy ladle building

Abstract

The utility model provides a raw material proportioning device for low-carbon silicon-manganese alloy ladle building, and relates to the field of metallurgical auxiliary equipment.The raw material proportioning device comprises a material mixing barrel, a sealing mechanism is detachably installed on the upper side of the material mixing barrel, a material distribution mechanism is arranged on the upper side of the sealing mechanism, and a material storage mechanism is arranged on the upper side of the material distribution mechanism; and a stirring mechanism is arranged in the mixing barrel. Through cooperation of the storage boxes, the adjusting plates, the electric push rods, the telescopic pipes and other structures, the volumes of different raw materials in all the storage boxes can be preset and fixed, so that basic proportion setting is completed before feeding, the accuracy of batch proportion is guaranteed, and the production efficiency is improved. Meanwhile, by means of cooperation of a first motor, a sealing plate, a material distributing pipe, a rotating plate and other structures, various raw materials can be synchronously and orderly fed, primary space dispersion is achieved when the raw materials fall into the material mixing barrel, and the problem that in the prior art, a single raw material is locally stacked is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical auxiliary equipment field, specifically, relate to a kind of for low-carbon silicon manganese alloy ladle building package raw material proportioning device. BACKGROUND

[0002] In the field of iron and steel metallurgy, the ladle is a key equipment for storing and transporting hot metal at high temperature. In the process of smelting low-carbon silicon manganese alloy and building the inner lining of the ladle, accurate proportioning of building package raw materials (such as refractory aggregates of specific particle size, powders, and alloy additives, etc.) is a key link to ensure the final performance of the inner lining.

[0003] To improve the erosion resistance and thermal shock resistance of the inner lining, specific proportioning of building package raw materials such as silicon carbide, bauxite, and low-carbon silicon manganese alloy is often pre-prepared or added. Currently, when proportioning multiple raw materials, corresponding proportioning devices are needed in the prior art. However, in actual use, the raw materials need to be first introduced into the device, and then a motor-driven stirring rod is used to stir and mix the raw materials for proportioning. When the raw materials are introduced into the device, local accumulation of single raw materials may occur, which leads to a longer stirring time and affects the efficiency of raw material proportioning and mixing. Therefore, we propose a low-carbon silicon manganese alloy ladle building package raw material proportioning device to solve the above problems. SUMMARY

[0004] The utility model aims to solve the problem of inconvenient use of some low-carbon silicon manganese alloy ladle building package raw material proportioning devices.

[0005] To achieve the above utility model purposes and improve the above problems, the utility model provides a low-carbon silicon manganese alloy ladle building package raw material proportioning device, which includes a mixing cylinder. A sealing mechanism is detachably installed on the upper side of the mixing cylinder. A distribution mechanism is provided on the upper side of the sealing mechanism. A storage mechanism is provided on the upper side of the distribution mechanism. A stirring mechanism is provided inside the mixing cylinder. A transmission mechanism is provided outside the mixing cylinder. A driving assembly is provided on the lower surface of the mixing cylinder.

[0006] The sealing mechanism includes a cover plate, which is detachably installed on the upper side of the mixing cylinder. A rotating plate is rotatably sleeved inside the cover plate. A distribution pipe is fixedly sleeved at the eccentric position of the rotating plate. The lower end of the distribution pipe penetrates through the lower surface of the rotating plate.

[0007] As a preferred technical scheme of the present application, the distributing mechanism comprises a mixing hopper, the mixing hopper is fixedly connected to the upper side of the cover plate by means of a frame body, the distributing pipe is connected to the mixing hopper by a rotating flange, at least two discharge grooves are formed in the upper surface of the mixing hopper, a sealing plate is rotatably connected to the inside of the mixing hopper by means of a shaft body, at least two communication grooves are formed in the inside of the sealing plate, and the communication grooves are matched with the discharge grooves.

[0008] As a preferred technical scheme of the present application, a first motor is fixedly connected to the upper surface of the mixing hopper, and the output shaft of the first motor is rotatably penetrated into the inside of the mixing hopper and fixedly connected to the sealing plate by means of a shaft coupling.

[0009] As a preferred technical scheme of the present application, the storage mechanism comprises at least two storage boxes, the storage boxes are fixedly connected to the upper side of the mixing hopper and correspond to the positions of the discharge grooves, the storage boxes are communicated with the mixing hopper through the discharge grooves, an adjusting plate is slidably connected to the inside of the storage box, an electric push rod is arranged on the upper side of the adjusting plate, the electric push rod is fixedly connected to the top wall of the storage box, the telescopic end of the electric push rod is fixedly connected to the adjusting plate, a telescopic pipe is fixedly connected between the adjusting plate and the top wall of the storage box, and a feeding hopper is fixedly connected to the upper surface of the storage box and communicated with the telescopic pipe.

[0010] As a preferred technical scheme of the present application, the stirring mechanism comprises a rotating shaft, the rotating shaft is rotatably connected to the inside of the mixing cylinder, a stirring rod is fixedly connected to the outside of the rotating shaft, a plurality of support shafts are rotatably connected to the inner wall of the mixing cylinder, a plurality of turning blades are fixedly connected to the surfaces of the support shafts, and the upper end of the rotating shaft is fixedly connected to the rotating plate.

[0011] As a preferred technical scheme of the present application, the driving assembly comprises a second motor, the second motor is fixedly connected to the lower surface of the mixing cylinder, a cavity is formed in the inside of the bottom plate of the mixing cylinder, a toothed disc is rotatably connected to the inside of the cavity by means of a shaft body, the lower end of the rotating shaft is rotatably penetrated into the inside of the cavity and fixedly connected to the shaft body of the toothed disc, and the output shaft of the second motor is rotatably penetrated into the inside of the cavity and fixedly connected to the shaft body of the toothed disc by means of a shaft coupling.

[0012] As a preferred technical scheme of the present application, the transmission mechanism comprises four protective covers, the protective covers are fixedly connected to the outside of the mixing cylinder, a plurality of support shafts are rotatably penetrated into the inside of the four protective covers, respectively, and a transmission rod is rotatably connected to the inside of each protective cover, a bevel gear is fixedly sleeved on the outside of the transmission rod and one end of the support shaft located in the inside of the protective cover, respectively, and two adjacent bevel gears are meshingly connected.

[0013] As a preferred technical solution of this application, the surface of the mixing cylinder is provided with four mounting slots, the cavity is connected to the interior of four protective covers through the four mounting slots respectively, a vertical rod is rotatably connected inside the cavity, a first gear is fixedly sleeved on the outside of the vertical rod, the first gear is meshed with a gear plate, and a second gear is fixedly sleeved on the outside of the transmission rod, the second gear is meshed with the first gear.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In the scheme of this application:

[0016] 1. Through the coordination of structures such as storage bins, adjusting plates, electric push rods, and telescopic tubes, the volume of different raw materials in each storage bin can be preset and fixed, thus completing the basic proportion setting before feeding and ensuring the accuracy of batch proportions. At the same time, with the coordination of structures such as the first motor, sealing plate, feeding pipe, and rotating plate, multiple raw materials can be fed synchronously and orderly, and achieve initial spatial dispersion when falling into the mixing cylinder. This effectively avoids the problem of local accumulation of single raw materials in existing technologies, creating uniform initial conditions for subsequent stirring and mixing, and significantly shortening the time required to achieve complete mixing.

[0017] 2. Through the coordination of the second motor, gear disc, rotating shaft, stirring shaft, first gear, second gear, transmission shaft, bevel gear, support shaft, etc., the synchronous compound motion of central stirring and peripheral tumbling is realized. The stirring rod is used to perform strong shearing and convection mixing on the raw materials in the central area of ​​the cylinder, while the tumbling blades continuously push the materials from the side wall to the central area and make them roll up and down. This greatly accelerates the diffusion and homogenization process between raw materials of different particle sizes and densities, ensuring that the composition of the final mixture is highly uniform and meeting the stringent requirements of raw material uniformity for the low-carbon silicon manganese alloy molten iron ladle. Attached Figure Description

[0018] Figure 1 A schematic diagram of the raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle construction provided in this application;

[0019] Figure 2 A cross-sectional structural schematic diagram of the mixing cylinder in the raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle provided in this application;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a cross-sectional structural schematic diagram of the storage tank and mixing hopper in the raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle construction provided in this application.

[0022] Indicated in the figure:

[0023] 1, mixing barrel; 2, storage mechanism; 3, cloth mechanism; 4, sealing mechanism; 5, stirring mechanism; 6, transmission mechanism; 7, cavity; 8, tooth disc; 9, second motor; 10, installation slot; 11, vertical rod; 12, first gear;

[0024] 21, storage tank; 22, adjusting plate; 23, electric push rod; 24, telescopic pipe; 25, feeding hopper;

[0025] 31, mixing hopper; 32, sealing plate; 33, communication groove; 34, first motor; 35, discharging groove;

[0026] 41, cover plate; 42, rotating plate; 43, cloth pipe;

[0027] 51, rotating shaft; 52, stirring rod; 53, support shaft; 54, turning blade;

[0028] 61, protective cover; 62, transmission rod; 63, bevel gear; 64, second gear. DETAILED DESCRIPTION

[0029] In order to make the personnel in the technical field better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0030] In order to make the personnel in the technical field better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings.

[0031] It should be noted that the embodiments in the present application and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0032] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0033] Embodiment 1

[0034] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4The utility model provides a kind of low carbon silicon manganese alloy ladle building package raw material proportioning device, including mixing barrel 1, the upper side of mixing barrel 1 is detachably installed with sealing mechanism 4, the upper side of sealing mechanism 4 is provided with cloth mechanism 3, the upper side of cloth mechanism 3 is provided with storage mechanism 2, the inside of mixing barrel 1 is provided with stirring mechanism 5, the outside of mixing barrel 1 is provided with transmission mechanism 6, the lower surface of mixing barrel 1 is provided with drive assembly;

[0035] Sealing mechanism 4 includes cover plate 41, cover plate 41 is detachably installed on the upper side of mixing barrel 1, eccentric rotating plate 42 is rotatably arranged in the inside of cover plate 41, cloth pipe 43 is fixedly sleeved on the eccentric position of rotating plate 42, and the lower end of cloth pipe 43 penetrates out of the lower surface of rotating plate 42, the upper end of cloth pipe 43 extends to the upper side of the center of rotating plate 42 in an inclined manner, so as to realize coaxial with rotating plate 42 and facilitate the sliding of raw materials along the inclined pipe into the inside of mixing barrel 1.

[0036] Further, as shown in Figure 1 、 Figure 2 、 Figure 4 Cloth mechanism 3 includes mixing hopper 31, mixing hopper 31 is fixedly connected to the upper side of cover plate 41 by means of frame body, and cloth pipe 43 is connected with mixing hopper 31 by rotating flange, at least two discharge grooves 35 are formed in the upper surface of mixing hopper 31, sealing plate 32 is rotatably connected in the inside of mixing hopper 31 by shaft body, at least two communication grooves 33 are formed in the inside of sealing plate 32, and communication grooves 33 are matched with discharge grooves 35.

[0037] Further, as shown in Figure 4 First motor 34 is fixedly connected to the upper surface of mixing hopper 31, the output shaft of first motor 34 is rotatably penetrated into the inside of mixing hopper 31 and is fixedly connected with sealing plate 32 by means of shaft coupling, the rotation of sealing plate 32 can be driven by starting first motor 34 through external controller, when communication grooves 33 and discharge grooves 35 are communicated, raw materials can enter the inside of mixing hopper 31 at this time, and then cloth pipe 43 is added into the inside of mixing barrel 1.

[0038] Further, as shown in Figure 1 、 Figure 4As shown, the storage mechanism 2 comprises at least two storage boxes 21 fixedly connected to the upper side of the mixing hopper 31 and corresponding to the position of the discharge chute 35, the storage boxes 21 are communicated with the discharge chute 35 and the mixing hopper 31, the inside of the storage box 21 is slidingly connected with an adjusting plate 22, the upper side of the adjusting plate 22 is provided with an electric push rod 23 fixedly connected to the top wall of the storage box 21, and the telescopic end of the electric push rod 23 is fixedly connected with the adjusting plate 22, the adjusting plate 22 and the top wall of the storage box 21 are fixedly connected with a telescopic tube 24, the upper surface of the storage box 21 is fixedly connected with a feeding hopper 25 communicated with the telescopic tube 24, and the outer surface of the storage box 21 is further provided with a transparent observation window with scale lines to facilitate viewing the inside of the storage box 21, the electric push rod 23 is started by an external controller, the movement of the telescopic end of the electric push rod 23 can drive the movement of the adjusting plate 22, and the movement of the adjusting plate 22 will drive the deformation of the telescopic tube 24, thereby realizing the adjustment of the discharge space inside the storage box 21, and subsequently adding raw materials to the inside of the storage box 21 through the feeding hopper 25.

[0039] Further, by adjusting the volume of the raw materials contained in the plurality of storage boxes 21, the proportion of each raw material can be pre-controlled.

[0040] Among them, the number of storage boxes 21, communication grooves 33 and discharge chutes 35 correspond to each other, and then after the alignment of the plurality of discharge chutes 35 and the plurality of communication grooves 33, the raw materials in the plurality of storage boxes 21 can enter the inside of the mixing hopper 31.

[0041] Further, as shown in Figure 2 , Figure 3 The stirring mechanism 5 comprises a rotating shaft 51 rotatably connected inside the mixing cylinder 1, the outer surface of the rotating shaft 51 is fixedly connected with a stirring rod 52, the inner wall of the mixing cylinder 1 is rotatably connected with a plurality of support shafts 53, the surface of each support shaft 53 is fixedly connected with a turnover blade 54, the upper end of the rotating shaft 51 is fixedly connected with the rotating plate 42, and then the rotation of the rotating shaft 51 can drive the rotation of the rotating plate 42, thereby realizing uniform distribution of materials during stirring.

[0042] Further, as shown in Figure 2 The driving assembly comprises a second motor 9 fixedly connected to the lower surface of the mixing cylinder 1, a cavity 7 is formed in the bottom plate of the mixing cylinder 1, a gear disc 8 is rotatably connected inside the cavity 7 through a shaft body, the lower end of the rotating shaft 51 rotatably penetrates into the inside of the cavity 7 and is fixedly connected with the shaft body of the gear disc 8, the output shaft of the second motor 9 rotatably penetrates into the inside of the cavity 7 and is fixedly connected with the shaft body of the gear disc 8 through a shaft coupling, the rotation of the gear disc 8 can be driven by starting the second motor 9 through an external controller, thereby driving the rotation of the rotating shaft 51.

[0043] Wherein, the power supply, the wire, the controller and the microcomputer etc. structure are also arranged in matching with the first motor 34, the second motor 9 and the electric push rod 23, since it is not the main structure, therefore, the text will not be too much repetition, and as the person skilled in the art is well known, the working principle and the wiring method of the first motor 34, the second motor 9 and the electric push rod 23 are common, which belongs to the conventional means or common knowledge, here will not be repeated, the person skilled in the art can be selected according to the need or the convenience of any.

[0044] Further, as shown in Figure 2 、 Figure 3 The transmission mechanism 6 includes the protective cover 61, the number of protective cover 61 is four, the protective cover 61 is fixedly connected to the outside of the mixing barrel 1, a plurality of support shafts 53 are rotatably penetrated into the inside of the four protective covers 61, and the inside of the protective cover 61 is rotatably connected with the transmission rod 62, the outside of the transmission rod 62 and one end of the support shaft 53 located in the inside of the protective cover 61 are fixedly sleeved with bevel gears 63, and the two adjacent bevel gears 63 are meshed and connected, the rotation of the transmission rod 62 and the transmission of the bevel gear 63 can drive the rotation of the support shaft 53, thereby driving the turning of the turning blade 54 to the inside material, further improving the uniformity of the material mixing.

[0045] Further, as shown in Figure 3 The surface of the mixing barrel 1 is provided with four mounting through grooves 10, the cavity 7 is communicated with the inside of the four protective covers 61 through the four mounting through grooves 10, the inside of the cavity 7 is rotatably connected with a vertical rod 11, the outside of the vertical rod 11 is fixedly sleeved with a first gear 12, the first gear 12 is meshed and connected with the toothed disc 8, the outside of the transmission rod 62 is fixedly sleeved with a second gear 64, the second gear 64 is meshed and connected with the first gear 12, the rotation of the toothed disc 8 can drive the rotation of the first gear 12, the rotation of the first gear 12 can drive the rotation of the second gear 64, thereby driving the rotation of the transmission rod 62.

[0046] The use process of the low-carbon silicon-manganese alloy ladle building raw material proportioning device is as follows:

[0047] The electric push rod 23 is started through the external controller, the movement of the telescopic end of the electric push rod 23 can drive the movement of the adjusting plate 22, and the movement of the adjusting plate 22 can drive the deformation of the telescopic pipe 24, thereby realizing the adjustment of the discharging space inside the storage tank 21, and then the feeding hopper 25 is contacted to add raw materials into the storage tank 21, at this time, the volume of the raw materials contained in the plurality of storage tanks 21 is adjusted, thereby realizing the pre-control of the proportion of each raw material.

[0048] Then the staff will be mixed raw materials according to the predetermined proportion is added to the inside of each storage tank 21, the subsequent through the external controller start first motor 34 can drive the rotation of the sealing plate 32, when the communication groove 33 and the discharge groove 35 is connected when the material can enter the inside of the mixing hopper 31, the subsequent by means of cloth pipe 43 into the inside of the mixing cylinder 1.

[0049] In addition, staff can start the second motor 9 through the external controller can drive the rotation of the gear plate 8, thereby driving the rotation of the rotating shaft 51, and then through the rotating shaft 51 rotation can drive the rotation of the rotating plate 42, through the rotation of the rotating plate 42 can realize the cloth pipe 43 of the circular motion, so as to realize uniform distribution.

[0050] In addition, in the rotating shaft 51 rotation can also drive the stirring rod 52 to mix various raw materials, at the same time through the rotation of the gear plate 8 can drive the rotation of the first gear 12, through the rotation of the first gear 12 can drive the rotation of the second gear 64, thereby driving the rotation of the transmission rod 62, through the rotation of the transmission rod 62 and the bevel gear 63 transmission can drive the rotation of the support shaft 53, and then drive the turning blade 54 to turn the internal material, further improve the uniformity of the raw material mixing.

[0051] In the utility model, unless there is definite and limited, the term "installation", "connection", "connection", "fixing" and so on should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrated; can be mechanical connection, also can be electric connection or each other can communicate; can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two elements of the interaction relationship, unless there is definite limitation. For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning in the utility model.

[0052] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, and not all the embodiments, the preferred embodiments of the utility model are given in the drawings, but do not limit the patent range of the utility model. The utility model can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent replacement to part of the technical features. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection range of the utility model.

Claims

1. A raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle casting, characterized in that, The mixing cylinder (1) includes a mixing cylinder body (1), a sealing mechanism (4) is detachably installed on the upper side of the mixing cylinder body (1), a material distribution mechanism (3) is provided on the upper side of the sealing mechanism (4), a material storage mechanism (2) is provided on the upper side of the material distribution mechanism (3), a stirring mechanism (5) is provided inside the mixing cylinder body (1), a transmission mechanism (6) is provided on the outside of the mixing cylinder body (1), and a driving component is provided on the lower surface of the mixing cylinder body (1). The sealing mechanism (4) includes a cover plate (41), which is detachably installed on the upper side of the mixing cylinder (1). A rotating plate (42) is rotatably sleeved inside the cover plate (41). A material distribution pipe (43) is fixedly sleeved at the eccentric part of the rotating plate (42), and the lower end of the material distribution pipe (43) extends through the lower surface of the rotating plate (42).

2. The raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle construction according to claim 1, characterized in that, The fabric feeding mechanism (3) includes a mixing hopper (31), which is fixedly connected to the upper side of the cover plate (41) by means of a frame, and the fabric feeding pipe (43) is connected to the mixing hopper (31) by a rotating flange. At least two discharge slots (35) are provided on the upper surface of the mixing hopper (31). A sealing plate (32) is rotatably connected to the inside of the mixing hopper (31) by a shaft. At least two connecting slots (33) are provided inside the sealing plate (32), and the connecting slots (33) and the discharge slots (35) are adapted to each other.

3. The raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle construction according to claim 2, characterized in that, The upper surface of the mixing hopper (31) is fixedly connected to a first motor (34), the output shaft of the first motor (34) rotates through the interior of the mixing hopper (31) and is fixedly connected by a coupling and a sealing plate (32).

4. The raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle construction according to claim 3, characterized in that, The storage mechanism (2) includes at least two storage boxes (21). The storage boxes (21) are fixedly connected to the upper side of the mixing hopper (31) and correspond to the position of the discharge chute (35). The storage boxes (21) are connected to the mixing hopper (31) through the discharge chute (35). An adjusting plate (22) is slidably connected inside the storage box (21). An electric push rod (23) is provided on the upper side of the adjusting plate (22). The electric push rod (23) is fixedly connected to the top wall of the storage box (21), and the telescopic end of the electric push rod (23) is fixedly connected to the adjusting plate (22). A telescopic pipe (24) is fixedly connected between the adjusting plate (22) and the top wall of the storage box (21). A feeding hopper (25) is fixedly connected to the upper surface of the storage box (21). The feeding hopper (25) and the telescopic pipe (24) are connected.

5. A raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle construction according to claim 4, characterized in that, The stirring mechanism (5) includes a rotating shaft (51), which is rotatably connected to the inside of the mixing cylinder (1). A stirring rod (52) is fixedly connected to the outside of the rotating shaft (51). Several support shafts (53) are rotatably connected to the inner wall of the mixing cylinder (1). A turning blade (54) is fixedly connected to the surface of each of the several support shafts (53). The upper end of the rotating shaft (51) is fixedly connected to the rotating plate (42).

6. A raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle construction according to claim 5, characterized in that, The drive assembly includes a second motor (9), which is fixedly connected to the lower surface of the mixing cylinder (1). The bottom plate of the mixing cylinder (1) has a cavity (7) inside. A gear disc (8) is rotatably connected to the cavity (7) through a shaft. The lower end of the rotating shaft (51) rotates through the cavity (7) and is fixedly connected to the shaft of the gear disc (8). The output shaft of the second motor (9) rotates through the cavity (7) and is fixedly connected to the shaft of the gear disc (8) through a coupling.

7. A raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle construction according to claim 6, characterized in that, The transmission mechanism (6) includes a protective cover (61), and there are four protective covers (61). The protective covers (61) are fixedly connected to the outside of the mixing cylinder (1). Several support shafts (53) are respectively rotatably inserted into the interior of the four protective covers (61). A transmission rod (62) is rotatably connected inside the protective cover (61). A bevel gear (63) is fixedly sleeved on the outside of the transmission rod (62) and at one end of the support shaft (53) inside the protective cover (61). Two adjacent bevel gears (63) are meshed and connected.

8. A raw material proportioning device for low-carbon silicon-manganese alloy molten iron ladle construction according to claim 7, characterized in that, The surface of the mixing cylinder (1) is provided with four mounting slots (10). The cavity (7) is connected to the interior of the four protective covers (61) through the four mounting slots (10). A vertical rod (11) is rotatably connected inside the cavity (7). A first gear (12) is fixedly sleeved on the outside of the vertical rod (11). The first gear (12) is meshed with the gear disc (8). A second gear (64) is fixedly sleeved on the outside of the transmission rod (62). The second gear (64) is meshed with the first gear (12).

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