Mechanical steel ladle capping heat preservation device

Abstract

The utility model relates to the field of energy conservation and environmental protection of metallurgy, and discloses a mechanical steel ladle capping and heat preservation device which comprises a buggy ladle, a steel ladle body is arranged on the upper portion of the buggy ladle, a ladle cover is arranged on the upper portion of the steel ladle body, a lifting appliance is arranged on the upper portion of the ladle cover, an inclined rail is arranged on the right side of the lifting appliance, and a door frame is arranged on the right side of the inclined rail. A lifting mechanism is arranged on the upper portion of the portal frame, the portal frame is fixedly connected with the left side of the upper portion of the lifting appliance through a first short link chain for lifting, and the portal frame is fixedly connected with the upper middle portion of the lifting appliance through a second short link chain for lifting. According to the steel ladle capping device, when the buggy ladle enters the capping position, the lifting mechanism is lowered to complete the uncovering action through the steel ladle body, after the steel ladle receives molten steel and the buggy ladle leaves the capping position, the steel ladle is covered with the ladle cover through the capping device, and the steel ladle body capping operation can be carried out when the buggy ladle runs; the steel ladle capping heat preservation device is wide in adaptability, energy consumption can be effectively reduced, cost is saved, and emission is reduced.

Description

Technical Field

[0001] The utility model relates to the field of metallurgical energy conservation and environmental protection, in particular to a mechanical ladle covering and heat preservation device. Background Art

[0002] During steelmaking, heat dissipation from the ladle is a significant cause of molten steel temperature loss, directly impacting the economic and technical performance of steelmaking. Heat loss from the ladle primarily consists of heat conduction losses through the refractory materials and cladding, as well as direct heat radiation between the molten steel and the air. After tapping a 120t ladle, the molten steel loses approximately 1°C / min of heat through radiation to the air. After pouring, the surface refractory cooling rate during the empty ladle's turnover cycle can reach approximately 50°C / min. Since this empty time accounts for more than half of the total turnover cycle, ladle insulation is crucial for reducing this cooling rate and improving the economic and technical performance of steelmaking.

[0003] The current control method used in steelmaking systems is to utilize ladle capping technology to block heat exchange between molten steel and air, thereby reducing temperature loss in the molten steel or refractory materials in the empty ladle. Hydraulic ladle capping devices are commonly used on the market. When the ladle passes through the capping station, the cap is hydraulically placed on the ladle mouth to provide insulation. However, hydraulic ladle capping systems have limited adaptability to harsh operating conditions. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a mechanical ladle covering and insulation device, which aims to improve the problem that the ladle covering and insulation device in the prior art has poor ability to adapt to harsh working conditions.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mechanical ladle covering and insulation device, including a ladle car, a ladle body is provided on the upper part of the ladle car, a ladle cover is provided on the upper part of the ladle body, a sling is provided on the upper part of the ladle cover, an inclined rail is provided on the right side of the sling, a gantry is provided on the right side of the inclined rail, a lifting mechanism is provided on the upper part of the gantry, the gantry is fixedly connected to the upper left part of the sling by a short link chain 1 for lifting, and the gantry is fixedly connected to the upper middle part of the sling by a short link chain 2 for lifting.

[0006] As a further description of the above technical solution:

[0007] The lifting mechanism includes an electric motor, which is fixedly connected to the upper part of the gantry. The output end of the motor is fixedly connected to a gear transmission. A groove guide wheel is installed at the end of the gear transmission away from the motor. A short link chain three for lifting is fixedly connected to the outer side of the groove guide wheel.

[0008] As a further description of the above technical solution:

[0009] The inclined rail is fixedly connected to the hanger through a bolt 1, a gasket 1 is slidably connected to the outer side of the middle part of the bolt 1, and a nut 1 is threadedly connected to the outer side of the bolt 1.

[0010] As a further description of the above technical solution:

[0011] The upper part of the bag cover is fixedly connected with a hook device, and the connection between the inclined rail and the door frame is provided with an adjustment pad.

[0012] As a further description of the above technical solution:

[0013] A U-shaped positioning groove is provided on the upper portion of the ladle cover, a wire feeding hole is provided on the upper portion of the ladle cover, and a pin is fixedly connected to the upper portion of the ladle body.

[0014] As a further description of the above technical solution:

[0015] The ladle car runs on the upper part of the track.

[0016] As a further description of the above technical solution:

[0017] The right side of the sling is threadedly connected with a second bolt, the outer side of the second bolt is threadedly connected with a second nut, the outer side of the second bolt is slidably connected with a second gasket, and the sling is connected to the inclined rail through the second bolt.

[0018] As a further description of the above technical solution:

[0019] One end of the short link chain for lifting away from the groove guide wheel is fixedly connected to the sling.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, the ladle body moves with the ladle car to the molten steel receiving position. When the ladle car enters the covering position, the lifting mechanism is lowered to complete the cover-opening action. After the ladle receives the molten steel, the ladle car leaves and passes through the covering position, and the covering device covers the ladle again. The covering operation of the ladle body can be carried out when the ladle car is running. There is a hole on the top of the ladle cover, which can complete operations such as wire feeding after the furnace. There is no special requirement for production, and the adaptability is wide. It effectively reduces energy consumption, saves costs, and reduces emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of a mechanical ladle covering and heat preservation device proposed by the utility model;

[0023] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0024] Figure 3 for Figure 1 Enlarged view of point B in .

[0025] Legend:

[0026] 1. Ladle car; 2. Ladle body; 3. Ladle cover; 4. Hoist; 5. Mast; 6. Lifting mechanism; 7. Bolt 1; 8. Nut 1; 9. Washer 1; 10. Inclined rail; 11. Adjusting pad; 12. Bolt 2; 13. Nut 2; 14. Washer 2; 15. Short link chain 1 for lifting; 16. Short link chain 2 for lifting; 17. Short link chain 3 for lifting. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figure 1-Figure 3 The utility model provides an embodiment: a mechanical ladle covering and insulation device, including a ladle car 1, a ladle body 2 is provided on the upper part of the ladle car 1, a ladle cover 3 is provided on the upper part of the ladle body 2, a sling 4 is provided on the upper part of the sling 4, an inclined rail 10 is provided on the right side of the sling 4, a gantry 5 is provided on the right side of the inclined rail 10, a lifting mechanism 6 is provided on the upper part of the gantry 5, the gantry 5 is fixedly connected to the upper left part of the sling 4 through a short lifting chain 15, the gantry 5 is fixedly connected to the middle part of the sling 4 through a short lifting chain 16, the inclined rail 10 is fixedly connected to the sling 4 through a bolt 7, and a gasket is slidably connected to the outer side of the middle of the bolt 7. 9. The outer side of the bolt 7 is threadedly connected to a nut 8. The upper part of the ladle cover 3 is fixedly connected to a hook device, which is connected to the sling 4 through the hook device. An adjustment pad 11 is provided at the connection between the inclined rail 10 and the door frame 5. A U-shaped positioning groove is provided on the upper part of the ladle cover 3. A wire feeding hole is provided on the upper part of the ladle cover 3. Operations such as post-furnace wire feeding are completed through the wire feeding hole. A pin is fixedly connected to the upper part of the ladle body 2. The ladle car 1 runs on the upper part of the track. The right side of the sling 4 is threadedly connected to a bolt 2 12. The outer side of the bolt 2 12 is threadedly connected to a nut 2 13. The outer side of the bolt 2 12 is slidably connected to a gasket 2 14. The sling 4 is connected to the inclined rail 10 through the bolt 2 12.

[0029] During operation, the ladle car 1 first waits at the steel-discharging position to ensure that the ladle body 2 is filled with molten steel and is ready for subsequent capping. Once this is confirmed, the ladle car 1 begins to move toward the capping position, and after precise track navigation, it finally arrives at the capping position and stops smoothly. At this point, the lifting mechanism 6 is immediately started, and through the cooperation of the lifting short-link chain 1 15, the lifting short-link chain 2 16 and the lifting short-link chain 3 17, the sling 4 is driven to slowly descend. During the descent, the bottom of the sling 4 is aligned with the ladle cover 3. A U-shaped positioning groove is designed on the ladle cover 3. The purpose of this groove design is to facilitate docking with the pin shaft on the ladle body 2. When the U-shaped positioning groove of the ladle cover 3 is precisely aligned with the pin shaft and fully inserted, the stability and safety of the ladle cover 3 are ensured. At this point, the ladle car 1 can continue to move forward and successfully complete the uncoupling of the ladle cover 3 and the sling 4. The successful implementation of this capping action marks the efficient operation of the mechanical ladle capping and insulation device. This device is widely adaptable, not only to different types of ladles but also effectively adapting to various operating environments. This automated capping method significantly reduces energy consumption, minimizes manual intervention, and improves work efficiency. Furthermore, by minimizing heat loss, it effectively reduces production costs and lowers harmful emissions caused by high-temperature operations, meeting modern industry's requirements for environmental protection and sustainable development.

[0030] The lifting mechanism 6 includes an electric motor, which is fixedly connected to the upper part of the gantry 5 and supported by the gantry 5. The output end of the motor is fixedly connected to a gear transmission, and a groove guide wheel is installed at the end of the gear transmission away from the motor. A short link chain 3 for lifting 17 is fixedly connected to the outer side of the groove guide wheel. The short link chain 3 for lifting 17 is installed through the groove guide wheel, and the end of the short link chain 3 for lifting 17 away from the groove guide wheel is fixedly connected to the sling 4.

[0031] During operation, the starting motor is first controlled, generating an appropriate rotational speed through the gearbox. This power transmission system effectively transmits the motor's rotational force to the grooved guide wheel, causing it to begin rotating. As the grooved guide wheel rotates, the lifting short-link chain 3 (17) is effectively pulled, generating a strong traction force. The movement of the lifting short-link chain 3 (17) causes the attached spreader (4) to begin moving upward. The lifting process of the spreader (4) is precise and stable, ensuring no shaking or tilting during the lifting process, thus ensuring safety.

[0032] Working principle: First, the ladle car 1 waits for the ladle body 2 to be filled with molten steel at the steel tapping position, and then moves towards the covering position. The ladle car 1 stops after moving to the covering position, and the lifting mechanism 6 drives the sling 4 to descend through the lifting short link chain 15, the lifting short link chain 2 16 and the lifting short link chain 3 17. During the descent, the ladle cover 3 under the sling 4 is inserted into the pin on the ladle body 2 through the U-shaped positioning groove on the ladle cover 3. After the U-shaped positioning groove on the ladle cover 3 is fully inserted into the pin on the ladle, the ladle car 1 continues to start, and the ladle cover 3 and the sling 4 are successfully unhooked, and the covering action is completed, thereby realizing the wide adaptability of the mechanical ladle covering and insulation device, which can effectively reduce energy consumption, save costs and reduce emissions.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mechanical ladle covering and heat preservation device, comprising a ladle car (1), characterized in that: The ladle car (1) is provided with a ladle body (2) on the upper part, a ladle cover (3) is provided on the upper part of the ladle body (2), a sling (4) is provided on the upper part of the sling cover (3), an inclined rail (10) is provided on the right side of the sling (4), a gantry (5) is provided on the right side of the inclined rail (10), a lifting mechanism (6) is provided on the upper part of the gantry (5), the gantry (5) is fixedly connected to the upper left side of the sling (4) through a short lifting chain (15), and the gantry (5) is fixedly connected to the upper middle part of the sling (4) through a short lifting chain (16).

2. The mechanical ladle covering and heat preservation device according to claim 1, characterized in that: The lifting mechanism (6) includes an electric motor, which is fixedly connected to the upper part of the door frame (5). The output end of the electric motor is fixedly connected to a gear transmission. The end of the gear transmission away from the electric motor is equipped with a groove guide wheel, and the outer side of the groove guide wheel is fixedly connected to a short link chain (17) for lifting.

3. The mechanical ladle covering and heat preservation device according to claim 1, characterized in that: The inclined rail (10) is fixedly connected to the hanger (4) through a bolt (7), a gasket (9) is slidably connected to the outer side of the middle part of the bolt (7), and a nut (8) is threadedly connected to the outer side of the bolt (7).

4. The mechanical ladle covering and heat preservation device according to claim 1, characterized in that: A hook device is fixedly connected to the upper portion of the bag cover (3), and an adjustment pad (11) is provided at the connection between the inclined rail (10) and the door frame (5).

5. The mechanical ladle covering and heat preservation device according to claim 1, characterized in that: A U-shaped positioning groove is provided on the upper portion of the ladle cover (3), a wire feeding hole is provided on the upper portion of the ladle cover (3), and a pin is fixedly connected to the upper portion of the ladle body (2).

6. The mechanical ladle covering and heat preservation device according to claim 1, characterized in that: The ladle car (1) runs on the upper part of the track.

7. The mechanical ladle covering and heat preservation device according to claim 1, characterized in that: The right side of the sling (4) is threadedly connected to a second bolt (12), the outer side of the second bolt (12) is threadedly connected to a second nut (13), the outer side of the second bolt (12) is slidably connected to a second gasket (14), and the sling (4) is connected to the inclined rail (10) through the second bolt (12).

8. The mechanical ladle covering and heat preservation device according to claim 2, characterized in that: The end of the short link chain 3 (17) for lifting away from the groove guide wheel is fixedly connected to the sling (4).

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