Automatic slag adding equipment for crystallizer

Abstract

The utility model relates to the technical field of metallurgical automation, and discloses automatic slag adding equipment for a crystallizer. The automatic slag adding equipment for the crystallizer comprises a draught fan, a connecting pipe is fixedly installed at the rear end of the draught fan, a conveying pipe is fixedly installed at the rear end of the connecting pipe, a bent pipe is fixedly installed at the rear end of the conveying pipe, a rotating connector is installed at the lower end of the bent pipe in a penetrating and inserting mode, and a branch pipe is installed below the rotating connector in a penetrating and inserting mode; the connecting column penetrates through the top cover and is rotationally connected with the top cover through a bearing, the outer edge of the packing auger makes contact with the inner wall of an opening structure at the bottom end of the storage tank, the speed of casting powder entering the connecting pipe is limited by controlling the rotating speed of the motor, and the casting powder makes contact with airflow after entering the connecting pipe; air is blown into the connecting pipe through the draught fan to drive the covering slag in the connecting pipe to enter the conveying pipe, and in this way, the situation of covering slag blocking can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical automation, and particularly relates to an automatic slag adding device for a mold. Background Art

[0002] The mold powder is a material placed on the molten steel surface in the mold during continuous casting to keep warm, prevent oxidation and absorb non-metallic inclusions, which can prevent the secondary oxidation of molten steel, especially the meniscus of molten steel. When the mold powder is added to the molten steel surface in the mold and melted, a liquid slag layer with a certain thickness is formed and evenly covers the molten steel surface. This liquid slag layer plays a role in isolating the molten steel from contact with air, thereby preventing the secondary oxidation of molten steel.

[0003] The existing Chinese utility model patent with the reference publication number of CN209062098U discloses an automatic slag adding machine for a mold, including: a base module, a movable frame installed on the base module, a first driving device installed on the movable frame and used to drive the longitudinal movement of the movable frame, a storage tank installed on the movable frame, a cloth feeding device installed on the movable frame and connected to the storage tank, a second driving device installed on the movable frame and used to drive the transverse movement of the cloth feeding device, and a connecting rod mechanism installed between the cloth feeding device and the second driving device and cooperating with the second driving device to drive. In the utility model, the cloth feeding device is provided with symmetric first and second mushroom-shaped cloth feeders. The first driving device drives the longitudinal movement of the cloth feeding device and the second driving device drives the transverse movement of the cloth feeding device, so that the first and second mushroom-shaped cloth feeders accurately make a circumferential trajectory movement around the mold nozzle. When the mold powder is spread out along the discharge channel, a circumferential spreading area is formed, so that the mold powder can be evenly spread.

[0004] During the use of the existing mold slag adding equipment, it may cause the mold powder to block the conveying pipeline, affecting the normal operation of the slag adding equipment. At the same time, the existing slag adding equipment generally transports the mold powder through a conveyor belt. This method will result in a relatively small coverage area of the falling area of the mold powder, and it takes a certain amount of time for the mold powder to completely cover the molten iron. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides an automatic slag adding device for a mold, which has the advantages of avoiding blockage of the mold powder and expanding the scattering area of the mold powder, and solves the above technical problems.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: A crystallizer automatic slag adding device, comprising: a blower, a connecting pipe is fixedly installed at the rear end of the blower, a conveying pipe is fixedly installed at the rear end of the connecting pipe, a bent pipe is fixedly installed at the rear end of the conveying pipe, a rotary joint is inserted and installed at the lower end of the bent pipe, a branch pipe is inserted and installed below the rotary joint, a bell mouth is fixedly installed at the end of the branch pipe, a storage tank is fixedly installed above the connecting pipe, a top cover is fixedly installed at the upper end of the storage tank, a receiving hopper is inserted and installed above the top cover, a bearing is fitted and installed at the center of the top cover, a connecting column is inserted and installed at the center of the bearing, a motor is fixedly installed at the top end of the connecting column, a fixing frame is inserted and installed outside the motor, a screw conveyor is fixedly installed outside the connecting column, a limiting frame is inserted and installed at the lower end of the connecting column, and a support frame is fixedly installed outside the storage tank; The connecting pipe can facilitate the fluidization of the protective slag.

[0009] As a preferred technical solution of the present utility model, the air outlet of the blower is communicated with the connecting pipe, the connecting pipe is of a tee structure, and the central aperture of the connecting pipe is larger than the apertures at both ends of the connecting pipe; The blower can generate an air flow blown into the interior of the connecting pipe.

[0010] As a preferred technical solution of the present utility model, the branch pipe is rotationally connected to the bent pipe through the rotary joint, and a ninety-degree bending structure is arranged on the outside of the branch pipe at equal angles with the center of the branch pipe as the reference in an "X" shape; The rotary joint can facilitate the rotation of the branch pipe.

[0011] As a preferred technical solution of the present utility model, the branch direction of the branch pipe points obliquely downward at an angle of forty-five degrees, and the bell mouth is fixedly installed at the end of each branch of the branch pipe; The branch pipe can increase the coverage area of the protective slag.

[0012] As a preferred technical solution of the present utility model, the bottom end of the storage tank is provided with a conical structure, the bottom end of the storage tank is communicated with the connecting pipe, and the top cover is rotationally connected to the connecting column through the bearing; The storage tank can store the protective slag.

[0013] As a preferred technical solution of the present utility model, the receiving hopper penetrates through the top cover and is communicated with the inner cavity of the storage tank, the connecting column and the limiting frame are rotationally connected, and the limiting frame is fixedly connected to the storage tank; The receiving hopper can facilitate feeding.

[0014] As a preferred technical solution of the present utility model, the motor is fixedly connected to the top cover through the fixing frame, the rotating shaft of the motor is fixedly connected to the connecting column by means of insertion, and the outer edge of the screw conveyor contacts the inner wall of the opening structure at the bottom end of the storage tank; The motor can drive the connecting column to rotate.

[0015] Compared with the prior art, the utility model provides an automatic slag adding device for a mold, which has the following beneficial effects:

[0016] 1. Through the arrangement of the auger in the utility model, the auger is fixedly installed on the outer side of the connecting column. The top end of the connecting column is fixedly connected to the rotating shaft of the motor in an inserted manner. At the same time, the connecting column penetrates through the top cover and is rotationally connected to the top cover through a bearing. The outer edge of the auger contacts the inner wall of the opening structure at the bottom end of the storage tank. By controlling the rotation speed of the motor, the speed of the protective slag entering the connecting pipe is restricted. After the protective slag enters the connecting pipe, it will contact the air flow. Air is blown into the connecting pipe by a fan to drive the protective slag inside the connecting pipe into the inside of the conveying pipe. This method can avoid the situation of blockage of the protective slag.

[0017] 2. Through the arrangement of the branch pipe in the utility model, the branch pipe is rotationally connected to the elbow through a rotary joint. The outer side of the branch pipe is provided with a ninety-degree bending structure at equal angles in an "X" shape with the center of the branch pipe as the reference. The branches of the branch pipe point obliquely downward at an angle of forty-five degrees. The bell mouths are fixedly installed at the ends of each branch of the branch pipe. After the air flow drives the protective slag into the inside of the branch pipe, the air flow will be discharged from the four branch ends of the branch pipe. The reaction force exerted by the air flow on the branch pipe drives the branch pipe to rotate, so that the protective slag has a certain centrifugal force during the falling process, thereby expanding the coverage range of the protective slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a schematic diagram of the installation structure of the fan and the conveying pipe of the utility model;

[0020] Figure 3 is a schematic diagram of the installation structure of the branch pipe and the elbow of the utility model;

[0021] Figure 4 is a schematic diagram of the sectional structure of the storage tank of the utility model;

[0022] Among them: 1. Fan; 11. Connecting pipe; 12. Conveying pipe; 13. Elbow; 14. Rotary joint; 15. Branch pipe; 16. Bell mouth; 2. Storage tank; 21. Top cover; 22. Receiving hopper; 23. Bearing; 24. Connecting column; 25. Motor; 26. Fixed frame; 27. Auger; 28. Limiting frame; 29. Support frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes in detail the embodiments of the utility model with reference to the drawings and embodiments. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0024] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Please refer to Figure 1 - Figure 4 , in this embodiment, a crystallizer automatic slag adding device includes: a blower 1, a connecting pipe 11 is fixedly installed at the rear end of the blower 1, a conveying pipe 12 is fixedly installed at the rear end of the connecting pipe 11, a bent pipe 13 is fixedly installed at the rear end of the conveying pipe 12, a rotary joint 14 is inserted and installed at the lower end of the bent pipe 13, a branch pipe 15 is inserted and installed below the rotary joint 14, and a bell mouth 16 is fixedly installed at the end of each branch of the branch pipe 15.

[0027] The air outlet of the blower 1 is communicated with the connecting pipe 11. The connecting pipe 11 is of a tee structure, and the central aperture of the connecting pipe 11 is larger than the apertures at both ends of the connecting pipe 11. The branch pipe 15 is rotationally connected to the bent pipe 13 through the rotary joint 14. A ninety-degree bending structure is arranged on the outer side of the branch pipe 15 at equal angles with the center of the branch pipe 15 as the reference, and the branches of the branch pipe 15 point to an angle of forty-five degrees obliquely downward. The bell mouth 16 is fixedly installed at the end of each branch of the branch pipe 15.

[0028] Specifically, the blower 1 can generate an air flow blown into the inside of the connecting pipe 11. The connecting pipe 11 can facilitate the fluidization of the protective slag. The conveying pipe 12 can convey the protective slag. The bent pipe 13 can facilitate the entry of the protective slag into the inside of the branch pipe 15. The rotary joint 14 can facilitate the rotation of the branch pipe 15. The branch pipe 15 can increase the coverage area of the protective slag. The bell mouth 16 can limit the movement direction of the protective slag.

[0029] Above the connecting pipe 11, a storage tank 2 is fixedly installed. At the upper end of the storage tank 2, a top cover 21 is fixedly installed. Above the top cover 21, a receiving hopper 22 is inserted and installed. At the center of the top cover 21, a bearing 23 is fitted and installed. Through the center of the bearing 23, a connecting column 24 is inserted and installed. At the top end of the connecting column 24, a motor 25 is fixedly installed. Outside the motor 25, a fixing frame 26 is inserted and installed. Outside the connecting column 24, an auger 27 is fixedly installed. At the lower end of the connecting column 24, a limiting frame 28 is inserted and installed. Outside the storage tank 2, a support frame 29 is fixedly installed.

[0030] The bottom end of the storage tank 2 is provided with a conical structure. The bottom end of the storage tank 2 is communicated with the connecting pipe 11. Between the top cover 21 and the connecting column 24, a rotational connection is formed through the bearing 23. The receiving hopper 22 passes through the top cover 21 and is communicated with the inner cavity of the storage tank 2. Between the connecting column 24 and the limiting frame 28, a rotational connection is formed. The limiting frame 28 is fixedly connected to the storage tank 2. The motor 25 is fixedly connected to the top cover 21 through the fixing frame 26. The rotating shaft of the motor 25 is fixedly connected to the connecting column 24 in an inserted manner. The outer edge of the auger 27 contacts the inner wall of the opening structure at the bottom end of the storage tank 2.

[0031] Specifically, the storage tank 2 can store the protective slag. The top cover 21 can seal the upper end of the storage tank 2. The receiving hopper 22 can facilitate feeding. The bearing 23 can facilitate the rotation of the connecting column 24. The connecting column 24 can drive the auger 27 to rotate. The motor 25 can drive the connecting column 24 to rotate. The auger 27 can limit the feeding speed. The limiting frame 28 can limit the position of the lower end of the connecting column 24. The support frame 29 can play a supporting role for the storage tank 2.

[0032] In use, the auger 27 is fixedly installed outside the connecting column 24. The top end of the connecting column 24 is fixedly connected to the rotating shaft of the motor 25 in an inserted manner. At the same time, the connecting column 24 passes through the top cover 21 and is rotatably connected to the top cover 21 through the bearing 23. The outer edge of the auger 27 contacts the inner wall of the opening structure at the bottom end of the storage tank 2. By controlling the rotation speed of the motor 25, the speed of the protective slag entering the inside of the connecting pipe 11 is restricted. After the protective slag enters the inside of the connecting pipe 11, it will contact the air flow. The air is blown into the connecting pipe 11 through the blower 1 to drive the protective slag inside the connecting pipe 11 into the inside of the conveying pipe 12. This method can avoid the situation of blockage of the protective slag. The branch pipe 15 is rotatably connected to the elbow pipe 13 through the rotary joint 14. The outer side of the branch pipe 15 is provided with a ninety-degree bending structure in an "X" shape at equal angles with the center of the branch pipe 15 as the reference. The branches of the branch pipe 15 point obliquely downward at an angle of forty-five degrees. The bell mouth 16 is fixedly installed at the end of each branch of the branch pipe 15. After the air flow drives the protective slag into the inside of the branch pipe 15, the air flow will be discharged from the four branch ends of the branch pipe 15. The reaction force exerted by the air flow on the branch pipe 15 is used to drive the branch pipe 15 to rotate with the axis of the rotary joint 14 as the reference, so that the protective slag has a certain centrifugal force during the falling process. Due to the different particle sizes of the protective slag, the flying distances are also different. The protective slag will be circularly dispersed with the axis of the rotary joint 14 as the reference due to the action of the centrifugal force during the falling process, thereby expanding the coverage range of the protective slag.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crystallizer automatic slag adding device, characterized in that: include: A fan (1), wherein a connecting pipe (11) is fixedly mounted at the rear end of the fan (1), a delivery pipe (12) is fixedly mounted at the rear end of the connecting pipe (11), a bent pipe (13) is fixedly mounted at the rear end of the delivery pipe (12), a rotating joint (14) is inserted through the lower end of the bent pipe (13), a branch pipe (15) is inserted through the lower end of the rotating joint (14), a bell mouth (16) is fixedly mounted at the end of the branch pipe (15), a storage tank (2) is fixedly mounted above the connecting pipe (11), and a top cover is fixedly mounted at the upper end of the storage tank (2) (21), a receiving bucket (22) is inserted and installed on the top of the top cover (21), a bearing (23) is embedded and installed in the center of the top cover (21), a connecting column (24) is inserted and installed in the center of the bearing (23), a motor (25) is fixedly installed on the top of the connecting column (24), a fixing frame (26) is inserted and installed on the outside of the motor (25), an auger (27) is fixedly installed on the outside of the connecting column (24), a limiting frame (28) is inserted and installed on the lower end of the connecting column (24), and a supporting frame (29) is fixedly installed on the outside of the storage tank (2).

2. The automatic slag adding device for a crystallizer according to claim 1, characterized in that: The air outlet of the fan (1) is in communication with a connecting pipe (11); the connecting pipe (11) is a three-way structure; the central aperture of the connecting pipe (11) is larger than the apertures at both ends of the connecting pipe (11).

3. The automatic slag adding device for a crystallizer according to claim 1, characterized in that: The branch pipe (15) is rotatably connected to the bent pipe (13) via a rotary joint (14), and a 90-degree bending structure is provided on the outer side of the branch pipe (15) in an "X" shape with the center of the branch pipe (15) as a reference.

4. The automatic slag adding device for a crystallizer according to claim 1, characterized in that: The branches of the branch pipe (15) point diagonally downward at an angle of forty-five degrees, and the bell mouth (16) is fixedly installed at the end of each branch of the branch pipe (15).

5. The automatic slag feeding device for a crystallizer according to claim 1, characterized in that: The bottom end of the storage tank (2) is provided with a conical structure, the bottom end of the storage tank (2) is connected to the connecting pipe (11), and the top cover (21) is rotatably connected to the connecting column (24) via a bearing (23).

6. The automatic slag adding device for a crystallizer according to claim 1, characterized in that: The receiving bucket (22) passes through the top cover (21) and is in communication with the inner cavity of the storage tank (2); the connecting column (24) and the limiting frame (28) are rotatably connected; and the limiting frame (28) and the storage tank (2) are fixedly connected.

7. The automatic slag feeding device for a crystallizer according to claim 1, characterized in that: The motor (25) is fixedly connected to the top cover (21) via a fixing frame (26), the rotating shaft of the motor (25) is fixedly connected to the connecting column (24) by means of insertion, and the outer edge of the auger (27) contacts the inner wall of the opening structure at the bottom end of the storage tank (2).

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