A steelmaking converter alloy feeding and weighing device

Abstract

This application provides a weighing device for alloy charging in a steelmaking converter, relating to the field of steelmaking production technology. It includes a mounting frame, a rotating drum, and a material bin. The rotating drum is rotatably mounted on the mounting frame, and a weighing device is fixedly installed at the bottom of the rotating drum. The material bin can be placed inside the rotating drum and on the weighing device. A limiting component is provided on the material bin to confine it within the rotating drum. A feed pipe is fixedly installed on the mounting frame, located above the material bin. Several telescopic sleeves are sequentially slidably fitted onto the bottom of the feed pipe, and these telescopic sleeves are connected to the feed pipe. The mounting frame is equipped with a first driving component for lowering the lowest telescopic sleeve into the material bin and a second driving component for rotating and tilting the rotating drum. This integrates alloy weighing and charging, eliminating the time-consuming transfer required by traditional step-by-step operations.

Description

Technical Field

[0001] This application relates to the field of steelmaking production technology, and more specifically, to an alloy charging and weighing device for steelmaking converters. Background Technology

[0002] As a core high-temperature reaction vessel in the metallurgical industry, the steelmaking converter achieves continuous batch smelting of molten steel through a tilting furnace body. In the steelmaking process, the precise control of alloy element feeding affects the mechanical properties and chemical composition compliance rate of the final steel. The alloy feeding and weighing method commonly used in the industry at present mainly relies on electronic weighing sensors for static weighing, and then the alloy is transferred to the converter through conveying equipment. This solution is limited by the step-by-step operation mode, and its material handling capacity per unit time has a significant bottleneck, which restricts the improvement of overall production efficiency. Summary of the Invention

[0003] The purpose of this application is to provide an alloy charging and weighing device for steelmaking converters, which can solve the technical problem that the alloy charging and weighing methods commonly used in the industry are limited by the step-by-step operation mode, resulting in a significant bottleneck in the material processing capacity per unit time, which restricts the improvement of overall production efficiency.

[0004] This application provides an alloy charging and weighing device for a steelmaking converter, including a mounting frame, a rotating drum, and a material bucket. The rotating drum is rotatably mounted on the mounting frame, and a weighing device is fixedly mounted at the bottom of the rotating drum. The material bucket can be placed inside the rotating drum and on the weighing device. A limiting component is provided on the material bucket to limit the material bucket within the rotating drum. A feed pipe is fixedly mounted on the mounting frame, located above the material bucket. Several telescopic sleeves are slidably fitted onto the bottom of the feed pipe, and the telescopic sleeves are connected to the feed pipe. The mounting frame is provided with a first driving component for driving the lowest telescopic sleeve to descend and extend into the material bucket, and a second driving component for driving the rotating drum to rotate and tilt.

[0005] The limiting component includes a first limiting ring, which is fixedly sleeved on the material bucket. A second limiting ring is provided with an inwardly protruding top of the rotating bucket, which can limit the first limiting ring inside the rotating bucket.

[0006] The first drive assembly includes a cylinder and a connecting rod. The connecting rod is fixedly connected to the telescopic sleeve located at the bottom. The cylinder is fixedly mounted on the mounting bracket, and the piston rod of the cylinder is connected to the connecting rod.

[0007] The second drive component includes a motor, a winding reel, and a connecting rope. The motor and the winding reel are both fixedly mounted on the mounting frame. The output shaft of the motor is connected to the winding reel, and the winding reel is connected to the rotating drum via the connecting rope.

[0008] The system also includes a dust removal assembly, which comprises a dust cover, a flexible tube, and an exhaust fan. The dust cover is fixedly connected to the telescopic sleeve located at the bottom and can cover the top of the material bin. One end of the flexible tube is connected to the dust cover. The exhaust fan is fixedly mounted on the mounting frame, and the other end of the flexible tube is connected to the air inlet of the exhaust fan. The air outlet of the exhaust fan is connected to an external dust collector.

[0009] The outer wall of the feed pipe and the outer wall of the telescopic sleeve are both provided with sliding grooves, and the inner wall of the telescopic sleeve is fixedly provided with a slider, which can be slidably connected to the sliding groove.

[0010] The top of the feed pipe is connected to a feed hopper.

[0011] The rotating drum is fixedly equipped with a rotating shaft, which is rotatably connected to the mounting frame via bearings.

[0012] The mounting frame is provided with a support rod that slides through it, and the support rod can abut against the bottom of the rotating drum.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides an alloy charging and weighing device for steelmaking converters. In use, the first drive component drives the lowermost telescopic sleeve to descend into the material bucket, and then the alloy is fed into the feed pipe. After passing through the telescopic sleeve, it falls into the material bucket. The weighing device monitors the weight data of the material bucket in real time. When the set value is reached, the charging stops. Then, the first drive component drives the lowermost telescopic sleeve to rise and reset. Then, the second drive component drives the rotating drum to rotate and tilt. The material bucket tilts as the rotating drum rotates, and the alloy in the material bucket is poured out and then enters the steelmaking converter.

[0015] This device integrates alloy weighing and feeding, eliminating the time-consuming transfer process of traditional step-by-step operations and shortening the single feeding cycle. The device controls the descent of the telescopic sleeve through the first drive component to ensure that the alloy is accurately placed into the material bucket and avoids splashing. The device limits the material bucket within the rotating drum through the limiting component, restricting the axial displacement of the material bucket and preventing the material bucket from falling off when the rotating drum rotates or tilts. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a sectional view of the overall main view structure in some embodiments of this application;

[0018] Figure 2 This is a cross-sectional view of the overall side structure in some embodiments of this application;

[0019] Figure 3 This is a cross-sectional view of the main structure of the telescopic sleeve in some embodiments of this application.

[0020] The reference numerals in the attached figures are as follows:

[0021] 1. Mounting bracket; 11. Feed pipe; 12. Telescopic sleeve; 13. Slide groove; 14. Sliding block; 15. Feed hopper; 16. Support rod;

[0022] 2. Rotating drum; 21. Weighing device; 22. Second limit ring; 23. Rotating shaft;

[0023] 3. Material buckets;

[0024] 4. Limiting component; 41. First limiting ring;

[0025] 5. First drive assembly; 51. Cylinder; 52. Connecting rod;

[0026] 6. Second drive assembly; 61. Motor; 62. Winding reel; 63. Connecting rope;

[0027] 7. Dust removal components; 71. Dust cover; 72. Flexible pipe; 73. Exhaust fan. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] like Figures 1 to 3As shown in the figure, this application provides an alloy charging and weighing device for steelmaking converters, including a mounting frame 1, a rotating drum 2, and a material bucket 3. The rotating drum 2 is rotatably mounted on the mounting frame 1, and a weighing device 21 is fixedly mounted on the bottom of the rotating drum 2. The material bucket 3 can be placed inside the rotating drum 2 and on the weighing device 21. A limiting component 4 for limiting the material bucket 3 within the rotating drum 2 is provided on the material bucket 3. A feed pipe 11 is fixedly mounted on the mounting frame 1. The feed pipe 11 is located above the material bucket 3, and a plurality of telescopic sleeves 12 are slidably sleeved on the bottom of the feed pipe 11. The telescopic sleeves 12 are connected to the feed pipe 11. The mounting frame 1 is provided with a first driving component 5 for driving the lowest telescopic sleeve 12 to descend into the material bucket 3 and a second driving component 6 for driving the rotating drum 2 to rotate and tilt.

[0035] In use, the first drive assembly 5 drives the telescopic sleeve 12 located at the bottom to descend into the material bucket 3, and then feeds the alloy into the feed pipe 11. After passing through the telescopic sleeve 12, the alloy falls into the material bucket 3. The weighing device 21 monitors the weight data of the material bucket 3 in real time. When the set value is reached, the feeding stops. Then, the first drive assembly 5 drives the telescopic sleeve 12 located at the bottom to rise and reset. Then, the second drive assembly 6 drives the rotating drum 2 to rotate and tilt. The material bucket 3 tilts as the rotating drum 2 rotates, and the alloy in the material bucket 3 is poured out and then enters the steelmaking converter.

[0036] This device can integrate the weighing and feeding of alloys, eliminating the time-consuming transfer of traditional step-by-step operations and shortening the single feeding cycle. The device controls the telescopic sleeve 12 to descend through the first drive component 5, ensuring that the alloy is accurately placed into the material bucket 3 and avoiding splashing. The device limits the material bucket 3 within the rotating bucket 2 through the limiting component 4, restricting the axial displacement of the material bucket 3 and preventing the material bucket 3 from falling off when the rotating bucket 2 rotates or tilts.

[0037] like Figure 1 and 2 As shown, in this embodiment, the limiting component 4 includes a first limiting ring 41, which is fixedly sleeved on the material bucket 3. A second limiting ring 22 is provided on the top of the rotating bucket 2, which can limit the first limiting ring 41 inside the rotating bucket 2.

[0038] The first limiting ring 41 on the outer wall of the material barrel 3 cooperates with the second limiting ring 22 on the top of the rotating barrel 2 to limit the axial displacement of the material barrel 3 through the ring structure, preventing the material barrel 3 from falling off when the rotating barrel 2 rotates or tilts.

[0039] like Figures 1 to 3 As shown, in this embodiment, the first drive assembly 5 includes a cylinder 51 and a connecting rod 52. The connecting rod 52 is fixedly connected to the telescopic sleeve 12 located at the bottom. The cylinder 51 is fixedly mounted on the mounting bracket 1, and the piston rod of the cylinder 51 is connected to the connecting rod 52.

[0040] When in use, the cylinder 51 is activated to drive the connecting rod 52 to move up and down, and the telescopic sleeve 12 located at the bottom moves up and down with the connecting rod 52.

[0041] like Figure 1 and 2 As shown, in this embodiment, the second drive component 6 includes a motor 61, a winding reel 62, and a connecting rope 63. The motor 61 and the winding reel 62 are both fixedly mounted on the mounting bracket 1. The output shaft of the motor 61 is connected to the winding reel 62, and the winding reel 62 is connected to the rotating drum 2 through the connecting rope 63.

[0042] When in use, the motor 61 is turned on to drive the winding reel 62 to rotate. The winding reel 62 winds up the connecting rope 63, which causes the rotating drum 2 to rotate and tilt. The material drum 3 tilts with the rotating drum 2. The tilting angle can be precisely controlled by the second drive component 6 to reduce material residue.

[0043] like Figures 1 to 3 As shown, this embodiment also includes a dust removal component 7, which includes a dust cover 71, a flexible tube 72, and an exhaust fan 73. The dust cover 71 is fixedly connected to the telescopic sleeve 12 located at the bottom, and the dust cover 71 can cover the top of the material bucket 3. One end of the flexible tube 72 is connected to the dust cover 71. The exhaust fan 73 is fixedly mounted on the mounting frame 1, and the other end of the flexible tube 72 is connected to the air inlet of the exhaust fan 73. The air outlet of the exhaust fan 73 is connected to an external dust collector.

[0044] In use, the telescopic sleeve 12 at the bottom descends with the connecting rod 52 until it extends into the material bin 3. The dust cover 71 descends with the telescopic sleeve 12 until it abuts against the top of the material bin 3 and covers the top of the material bin 3. Then, the exhaust fan 73 is turned on, and the dust generated during the material feeding process is sucked away through the flexible tube 72 and sent to an external dust collector for subsequent purification. This device uses the dust cover 71 to initially block the dust generated during the material feeding process, and then uses the exhaust fan 73 to generate negative pressure to capture the dust generated during the material feeding process, reducing air pollution in the workshop and meeting environmental protection requirements. The flexible tube 72 is flexible, so that when the dust cover 71 moves up and down, the dust-laden gas in the material bin 3 can pass smoothly through the flexible tube 72.

[0045] like Figures 1 to 3 As shown, in this embodiment, the outer wall of the feed pipe 11 and the outer wall of the telescopic sleeve 12 are both provided with a sliding groove 13, and the inner wall of the telescopic sleeve 12 is fixedly provided with a slider 14, which can be slidably connected to the sliding groove 13.

[0046] The telescopic sleeve 12 is connected to the sliding groove 13 by the slider 14 to ensure that the multi-layer telescopic sleeve 12 can be stably extended and retracted along the axial direction, preventing rotation or displacement and improving the stability of use.

[0047] like Figures 1 to 3 As shown, in this embodiment, a feeding hopper 15 is connected to the top of the feeding pipe 11; the feeding hopper 15 can enlarge the inlet of the feeding pipe 11, making it easier to concentrate the material and reduce scattering.

[0048] like Figure 1 and 2 As shown in this embodiment, a rotating shaft 23 is fixedly installed on the rotating drum 2, and the rotating shaft 23 is rotatably connected to the mounting frame 1 through a bearing; the rotating drum 2 is connected to the mounting frame 1 through the rotating shaft 23 to achieve low-friction rotation and improve rotational stability.

[0049] like Figure 1 and 2 As shown in this embodiment, a support rod 16 is slidably provided on the mounting frame 1, and the support rod 16 can abut against the bottom of the rotating drum 2. Before loading, the support rod 16 is inserted and installed on the mounting frame 1 so that the support rod 16 abuts against the bottom of the rotating drum 2. The support rod 16 abuts against the bottom of the rotating drum 2 during loading and weighing to prevent it from rotating accidentally, avoid weighing errors or alloy spillage caused by the shaking of the rotating drum 2 during loading, and distribute the load of the rotating drum 2 to reduce the risk of wear of the bearing under long-term pressure. It plays a supporting and fixing role for the rotating drum 2 and improves the stability of use. Before unloading, the support rod 16 is removed to release the rotating drum 2 and prevent interference with the rotation and tilting of the rotating drum 2.

[0050] Working principle: When the alloy feeding and weighing device for steelmaking converter provided in this application is in use, the cylinder 51 is turned on to drive the connecting rod 52 to descend. The telescopic sleeve 12 located at the bottom descends with the connecting rod 52 to extend into the material bucket 3. Then the alloy is fed from the feed hopper 15 into the feed pipe 11, and falls into the material bucket 3 after passing through the telescopic sleeve 12. The weighing device 21 monitors the weight data of the material bucket 3 in real time. When the set value is reached, the feeding stops. Then, the first drive component 5 drives the telescopic sleeve 12 located at the bottom to rise and reset. Then, the motor 61 is turned on to drive the winding reel 62 to rotate. The winding reel 62 winds up the connecting rope 63, which drives the rotating drum 2 to rotate and tilt. The material bucket 3 tilts with the rotating drum 2, and the alloy in the material bucket 3 is poured out and then enters the steelmaking converter.

[0051] The telescopic sleeve 12 at the bottom descends with the connecting rod 52 until it extends into the material bucket 3. The dust cover 71 descends with the telescopic sleeve 12 until it comes into contact with the top of the material bucket 3 and covers the top of the material bucket 3. Then the exhaust fan 73 is turned on, and the dust generated during the material feeding process is sucked away through the flexible tube 72 and sent to the external dust collector for subsequent purification treatment.

[0052] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A weighing device for alloy charging in a steelmaking converter, characterized in that: The assembly includes a mounting frame (1), a rotating drum (2), and a material bin (3). The rotating drum (2) is rotatably mounted on the mounting frame (1), and a weighing device (21) is fixedly mounted at the bottom of the rotating drum (2). The material bin (3) can be placed inside the rotating drum (2) and on the weighing device (21). A limiting component (4) for limiting the material bin (3) within the rotating drum (2) is provided on the material bin (3). A feed pipe is fixedly mounted on the mounting frame (1). (11) The feed pipe (11) is located above the material barrel (3), and several telescopic sleeves (12) are slidably mounted on the bottom of the feed pipe (11). The telescopic sleeves (12) are connected to the feed pipe (11). The mounting frame (1) is provided with a first drive assembly (5) for driving the telescopic sleeve (12) located at the bottom to descend into the material barrel (3) and a second drive assembly (6) for driving the rotating barrel (2) to rotate and tilt.

2. The alloy charging and weighing device for steelmaking converters according to claim 1, characterized in that: The limiting component (4) includes a first limiting ring (41), which is fixedly sleeved on the material bucket (3). The top of the rotating bucket (2) is provided with a second limiting ring (22) that protrudes inward. The second limiting ring (22) can limit the first limiting ring (41) inside the rotating bucket (2).

3. The alloy charging and weighing device for steelmaking converters according to claim 1, characterized in that: The first drive assembly (5) includes a cylinder (51) and a connecting rod (52). The connecting rod (52) is fixedly connected to the telescopic sleeve (12) located at the bottom. The cylinder (51) is fixedly mounted on the mounting bracket (1), and the piston rod of the cylinder (51) is connected to the connecting rod (52).

4. The alloy charging and weighing device for steelmaking converters according to claim 1, characterized in that: The second drive assembly (6) includes a motor (61), a winding reel (62), and a connecting rope (63). The motor (61) and the winding reel (62) are both fixedly mounted on the mounting frame (1). The output shaft of the motor (61) is connected to the winding reel (62), and the winding reel (62) is connected to the rotating drum (2) through the connecting rope (63).

5. The alloy charging and weighing device for steelmaking converters according to claim 1, characterized in that: It also includes a dust removal component (7), which includes a dust cover (71), a flexible tube (72) and an exhaust fan (73). The dust cover (71) is fixedly connected to the telescopic sleeve (12) located at the bottom, and the dust cover (71) can cover the top of the material bucket (3). One end of the flexible tube (72) is connected to the dust cover (71). The exhaust fan (73) is fixedly installed on the mounting frame (1). The other end of the flexible tube (72) is connected to the air inlet of the exhaust fan (73). The exhaust outlet of the exhaust fan (73) is connected to an external dust collector.

6. The alloy charging and weighing device for steelmaking converters according to claim 1, characterized in that: The outer wall of the feed pipe (11) and the outer wall of the telescopic sleeve (12) are both provided with a sliding groove (13). The inner wall of the telescopic sleeve (12) is fixedly provided with a slider (14). The slider (14) can be slidably connected to the sliding groove (13).

7. The alloy charging and weighing device for steelmaking converters according to claim 1, characterized in that: The top of the feed pipe (11) is connected to a feed hopper (15).

8. The alloy charging and weighing device for steelmaking converters according to claim 1, characterized in that: A rotating shaft (23) is fixedly installed on the rotating drum (2), and the rotating shaft (23) is rotatably connected to the mounting frame (1) through a bearing.

9. The alloy charging and weighing device for steelmaking converters according to claim 1, characterized in that: A support rod (16) is slidably provided on the mounting frame (1), and the support rod (16) can abut against the bottom of the rotating barrel (2).

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