Steel ladle hot repair trolley

Abstract

The utility model relates to a steel ladle hot repair trolley which comprises a movable trolley body, a ladle bottom maintenance platform, a horizontal steel ladle support, a movable heat insulation baffle, a hydraulic cylinder suspension device and a movable dust removal cover, wherein the ladle bottom maintenance platform, the horizontal steel ladle support, the movable heat insulation baffle and the hydraulic cylinder suspension device are arranged on the movable trolley body. The horizontal steel ladle support is detachably installed between the ladle bottom maintenance platform and the movable heat insulation baffle and used for supporting a horizontally-placed steel ladle. The movable heat insulation baffle can move in the direction close to or away from the horizontal steel ladle support and can block a ladle opening of the steel ladle. The hydraulic cylinder suspension device is used for suspending a sliding gate hydraulic cylinder; the movable dust removal cover can move in the direction close to or away from the steel ladle, and a ladle opening of the steel ladle and the movable heat insulation baffle can be covered with the movable dust removal cover. The steel ladle cross-over device can achieve the cross-over function, improve the steel ladle hot repair operation safety, improve the steel ladle hot repair efficiency, accelerate the steel ladle heat transfer efficiency and improve the operation environment of workers.

Description

Technical Field

[0001] This utility model relates to the field of iron and steel metallurgy, and in particular to a hot repair trolley for steel ladles. Background Technology

[0002] With the rapid development of the steel industry, energy conservation and efficiency have become increasingly important for steel enterprises. As a crucial link in the hot turnover of ladles within a steel plant, improving the efficiency of ladle hot repair can be a significant means of accelerating production. Traditional ladle hot repair methods are generally fixed, typically located in the same span as molten steel hoisting. This not only poses safety hazards but also results in frequent ladle handling by cranes, leading to low repair efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a ladle hot repair trolley that can perform cross-span functions, improve the safety of ladle hot repair operations, increase the efficiency of ladle hot repair, accelerate the hot turnover efficiency of ladle, and improve the working environment for workers.

[0004] The purpose of this utility model is achieved as follows: a ladle hot repair trolley includes a mobile body and a ladle bottom inspection platform, a horizontal ladle support, a movable heat insulation baffle, a hydraulic cylinder suspension device, and a movable dust cover mounted on the mobile body; the horizontal ladle support is detachably installed between the ladle bottom inspection platform and the movable heat insulation baffle to support a horizontally placed ladle; the movable heat insulation baffle can move towards or away from the horizontal ladle support and can seal the ladle opening; the hydraulic cylinder suspension device is used to suspend the sliding nozzle hydraulic cylinder; the movable dust cover can move towards or away from the ladle and can cover the ladle opening and the movable heat insulation baffle within it.

[0005] In a preferred embodiment of this utility model, a dust collector is also connected to the top of the mobile dust collection hood via a pipeline.

[0006] In a preferred embodiment of the present invention, the mobile dust hood includes a top plate, two side plates connected to both sides of the top plate, and two end plates connected to both ends of the top plate. The bottom of the two side plates is slidably disposed on the mobile vehicle body, and an opening is formed between the lower end of the end plate and the two side plates, through which the ladle opening and the mobile heat insulation baffle can pass.

[0007] In a preferred embodiment of the present invention, the movable heat insulation baffle includes a circular plate and a support block. The support block is disposed on the side of the circular plate facing away from the ladle, and the circular plate can seal the ladle opening.

[0008] In a preferred embodiment of the present invention, a first movable wheel is provided at the bottom of the movable heat insulation baffle, a second movable wheel is provided at the bottom of the movable dust removal hood, and a first track and a second track are provided on the top surface of the movable vehicle body. The first movable wheel and the second movable wheel are slidably mounted on the first track and the second track, respectively.

[0009] In a preferred embodiment of the present invention, a baffle driving device and a dust cover driving device are further provided on the mobile vehicle body. The baffle driving device is connected to the mobile heat insulation baffle and can drive the mobile heat insulation baffle to move. The dust cover driving device is connected to the mobile dust cover and can drive the mobile dust cover to move.

[0010] In a preferred embodiment of this utility model, the ladle hot repair trolley also includes a vertical ladle support. The vertical ladle support can be detachably installed on the mobile car body when the horizontal ladle support and the mobile car body are in a disassembled state, and is used to support the vertically placed ladle.

[0011] In a preferred embodiment of this utility model, the bottom inspection platform includes a sliding gate inspection platform, a bottom blower ventilation brick inspection platform, a bag flipping hook inspection and storage platform, and multiple first-step ladders.

[0012] In a preferred embodiment of this utility model, a sliding gate maintenance hydraulic station is also provided on the mobile vehicle body, and the sliding gate maintenance hydraulic station can be connected to the sliding gate hydraulic cylinder through a pipeline.

[0013] In a preferred embodiment of the present invention, the hydraulic cylinder suspension device includes a vertical pole mounted on a mobile vehicle body and a horizontal bar rotatably connected to the top of the vertical pole. A suspension rope that can be raised and lowered is provided on the horizontal bar for suspending the sliding sprue hydraulic cylinder.

[0014] In a preferred embodiment of the present invention, the mobile vehicle body includes a vehicle body, a wheel assembly and a vehicle body drive device disposed at the bottom of the vehicle body, the vehicle body drive device being used to drive the wheel assembly to move, and a second step ladder being provided at the side end of the vehicle body.

[0015] As described above, this utility model's ladle hot repair trolley allows for hot repair operations to be performed on the trolley itself. This enables hot repair operations to be carried out in areas without molten steel transport, making the hot repair process safer. The ladle can be placed on the trolley for hot repairs, and after completion, it can be driven to the receiving bay for ladle lifting, reducing the need for ladle lifting and significantly improving the efficiency of ladle hot turnover. Since oxygen is required when repairing the bottom blower venting bricks or sliding nozzle slide plates of the ladle, resulting in high working temperatures, a movable heat insulation baffle is installed. This baffle, with its heat insulation function, is positioned horizontally over the ladle opening and can seal it, improving the working environment for workers. Simultaneously, a movable dust collection hood is provided, which houses the movable heat insulation baffle and the ladle cover. During hot repairs, the generated fumes and dust can be collected and centrally processed, further improving the surrounding environment. In addition, designing the movable heat insulation baffle and the movable dust hood as movable can prevent interference between the movable dust hood and the movable heat insulation baffle and the ladle during hoisting and lowering. Attached Figure Description

[0016] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0017] Figure 1 A schematic diagram of the steel ladle hot repair trolley provided by this utility model without the steel ladle placed on it.

[0018] Figure 2 for Figure 1 The left view.

[0019] Figure 3 for Figure 1 Top view.

[0020] Figure 4 This is a schematic diagram of the structure of the movable heat insulation baffle provided by this utility model.

[0021] Figure 5 A schematic diagram of the structure of the ladle hot repair trolley provided by this utility model, in which a horizontal ladle is placed.

[0022] Figure 6 for Figure 5 The left view.

[0023] Figure 7 for Figure 5 Top view.

[0024] Figure 8 for Figure 5 In the cross-sectional view of AA.

[0025] Figure 9 for Figure 5 In the cross-sectional view of BB.

[0026] Figure 10 This utility model provides a schematic diagram of the structure of a steel ladle hot repair trolley with a vertically positioned steel ladle.

[0027] Explanation of icon numbers:

[0028] 1. Mobile vehicle body; 11. Vehicle body; 12. Wheel assembly; 13. Vehicle body drive unit; 14. Second step ladder;

[0029] 2. Bottom inspection platform; 21. Sliding nozzle inspection platform; 22. Bottom-blown permeable brick inspection platform; 221. Bottom-blowing platform; 23. Turning hook inspection and storage platform; 24. First step ladder;

[0030] 31. Horizontal steel ladle support; 311. Support plate;

[0031] 32. Vertical steel ladle support; 321. Vertical plate;

[0032] 4. Movable heat insulation baffle; 41. Circular plate; 42. Support block; 43. First track; 44. Baffle driving device;

[0033] 5. Hydraulic cylinder suspension device; 51. Upright pole; 52. Horizontal bar; 53. Suspension rope;

[0034] 6. Hydraulic station for maintenance of sliding gate;

[0035] 7. Mobile dust hood; 71. Top plate; 72. Side plate; 73. End plate; 74. Opening; 75. Second caster wheel;

[0036] 8. Steel ladle; 81. Sliding nozzle; 82. Bottom blow nozzle. Detailed Implementation

[0037] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0038] like Figures 1 to 10 As shown, this application provides a ladle hot repair trolley, including a mobile body 1 and a ladle bottom inspection platform 2, a horizontal ladle support 31, a movable heat insulation baffle 4, a hydraulic cylinder suspension device 5, and a movable dust cover 7 mounted on the mobile body 1; the horizontal ladle support 31 is detachably installed between the ladle bottom inspection platform 2 and the movable heat insulation baffle 4 to support a horizontally placed ladle 8; the movable heat insulation baffle 4 can move towards or away from the horizontal ladle support 31 and can block the ladle opening of the ladle 8; the hydraulic cylinder suspension device 5 is used to suspend the sliding nozzle hydraulic cylinder; the movable dust cover 7 can move towards or away from the ladle 8 and can cover the ladle opening of the ladle 8 and the movable heat insulation baffle 4 within it.

[0039] Therefore, the hot repair trolley of this application allows for hot repair operations on the ladle 8 to be performed on the trolley, enabling the hot repair operation to be carried out in areas without molten steel, thus making the hot repair operation safer. Hot repair can be performed on the trolley after the ladle is seated, and after repair, it can be driven to the receiving ladle for hoisting, reducing the hoisting operation of the ladle 8 and greatly improving the hot turnover efficiency of the ladle 8. Since oxygen is required when repairing the bottom blower venting bricks or the sliding gate 81 of the ladle 8, resulting in high working environment temperatures, a movable heat insulation baffle 4 is installed. This baffle 4 has a heat insulation function; after the ladle 8 is placed horizontally, the movable heat insulation baffle 4 faces the ladle opening and can seal the ladle opening, improving the working environment for workers. Simultaneously, a movable dust hood 7 is provided, which can house the movable heat insulation baffle 4 and the ladle 8's dust hood, capturing the smoke and dust generated during hot repair, facilitating centralized treatment and further improving the surrounding environment. In addition, the movable heat insulation baffle 4 and the movable dust hood 7 are designed to be movable, which can prevent the movable dust hood 7 and the movable heat insulation baffle 4 from interfering with the ladle 8 when it is hoisted and lowered.

[0040] In a specific implementation, the top of the mobile dust hood 7 is also connected to a dust collector via a pipeline. The dust collector can suck up the flue gas generated during hot repairs so that the collected flue gas can be dealt with in a timely manner during hot repairs.

[0041] The structure of the mobile dust collection hood 7 can be designed according to requirements, for example, referring to... Figure 1 and Figure 2 The mobile dust cover 7 includes a top plate 71, two side plates 72 connected to both sides of the top plate 71, and two end plates 73 connected to both ends of the top plate 71. The bottom of the two side plates 72 is slidably mounted on the mobile vehicle body 1. An opening 74 is formed between the lower end of the end plate 73 and the two side plates 72, through which the ladle opening 8 and the mobile heat insulation baffle 4 can pass.

[0042] The mobile vehicle body 1 is generally a rectangular body. The bottom maintenance platform 2, the horizontal steel ladle support 31, and the mobile heat insulation baffle 4 are arranged sequentially along the length of the mobile vehicle body 1. The mobile heat insulation baffle 4 and the mobile dust hood 7 can both move along the length of the vehicle body 11. When the horizontal steel ladle 8 is placed on the horizontal steel ladle support 31, the axis of the steel ladle 8 is parallel to the length of the vehicle body 11.

[0043] The entire mobile dust hood 7 is roughly rectangular. The top plate 71, side plates 72, and end plates 73 are also rectangular. The top plate 71 is connected to two side plates 72 on both sides along the width direction of the mobile vehicle body 1, and the top plate 71 is connected to two end plates 73 on both ends along the length direction of the mobile vehicle body 1. Each end plate 73 is also connected to two side plates 72 on both sides along the width direction of the mobile vehicle body 1. The height of the end plate 73 is less than the height of the side plates 72. An opening 74 is formed between the lower edge of each end plate 73 and the two side plates 72. The height of the opening 74 should be higher than the height of the horizontal steel ladle 8 and higher than the height of the mobile heat insulation baffle 4, so that the mobile dust hood 7 will not interfere with the steel ladle 8 and the mobile heat insulation baffle 4 when it moves along the length direction of the mobile vehicle body 1. When lifting and sitting the ladle, the mobile dust hood 7 can be moved to a position that does not affect the lifting and sitting of the ladle. During hot repairs, the mobile dust hood 7 can be moved to the ladle opening of the ladle 8 where smoke and dust are generated.

[0044] The structure of the mobile dust collection hood 7 can be designed according to requirements, for example, referring to... Figure 1 , Figure 3 and Figure 4 The movable heat insulation baffle 4 includes a circular plate 41 and a support block 42. The support block 42 is located on the side of the circular plate 41 facing away from the ladle 8. The circular plate 41 can block the ladle opening.

[0045] The diameter of the circular plate 41 should be slightly larger than the ladle opening of the ladle 8. After the ladle 8 is placed horizontally on the horizontal ladle support 31, the movable heat insulation baffle 4 is moved to the circular plate 41 to block the ladle opening. During hot repairs, smoke and dust will be generated at the ladle opening and the blocking position of the circular plate 41. The movable dust hood 7 is moved to the position directly opposite the blocking position of the ladle opening and the circular plate 41 to better remove the generated smoke and dust. The support block 42 can be, for example, a triangular block, mainly used to fix the circular plate 41. The movable stroke of the movable heat insulation baffle 4 can be determined according to actual needs. For example, in a specific example, its movable stroke is about 1m. Considering that the state of the ladle 8 needs to be changed from horizontal to vertical or from vertical to horizontal when hoisting and lowering the ladle, using a movable baffle 4 can avoid interference between the ladle opening and the movable heat insulation baffle 4, making it difficult to lower the ladle. The lower edge of the end plate 73 of the aforementioned mobile dust hood 7 is generally designed as an upwardly concave arc edge, which can better avoid interference between the mobile dust hood 7 and the opening and the mobile heat insulation baffle 4.

[0046] Optionally, a first movable wheel is provided at the bottom of the movable heat insulation baffle 4, and a second movable wheel 75 is provided at the bottom of the movable dust hood 7. A first track 43 and a second track are provided on the top surface of the movable vehicle body 1. The first movable wheel and the second movable wheel 75 are slidably mounted on the first track 43 and the second track, respectively, which facilitates the sliding of the movable heat insulation baffle 4 and the movable dust hood 7. The first movable wheel is specifically located at the bottom of the support block 42, and the second movable wheel 75 is specifically located at the bottom of the side plate 72. The specific number of movable wheels can be determined according to actual needs.

[0047] Furthermore, the mobile vehicle body 1 is also equipped with a baffle drive device 44 and a dust hood drive device. The baffle drive device 44 is connected to the mobile heat insulation baffle 4 and can drive the mobile heat insulation baffle 4 to move. The dust hood drive device is connected to the mobile dust hood 7 and can drive the mobile dust hood 7 to move. Since the stroke of the mobile heat insulation baffle 4 is relatively short and its size is small, the baffle drive device 44 is generally a hydraulic cylinder, as shown in the reference... Figure 3 and Figure 4 The cylinder body of the hydraulic cylinder is fixed to the top surface of the mobile vehicle body 1, and its telescopic rod is connected to the aforementioned support block 42. Since the mobile dust hood 7 is relatively large, a motor is generally used as the driving device. Of course, other driving devices can be used as needed; this embodiment is merely an example.

[0048] Furthermore, refer to Figure 1 and Figure 2 A typical horizontal ladle support 31 includes two parallel support plates 311 spaced apart along the length of the vehicle body 11. The bottom of the support plates 311 is fixed to the vehicle body 11 by corresponding fasteners, and the top of the support plates 311 has an arc-shaped groove. This horizontal ladle support 31 is mainly used to support a horizontal ladle 8 awaiting hot repair. A crane is used to lower the ladle 8 awaiting hot repair onto the horizontal ladle support 31. After the ladle is lowered, it is in a horizontal position, and both ends of the ladle 8 can be respectively locked and supported in the two arc-shaped grooves of the two support plates 311. At this time, the bottom of the ladle 8 faces the bottom inspection platform 2, and the ladle opening faces the movable heat insulation baffle 4.

[0049] Further optional, see Figure 10 The ladle hot repair trolley also includes a vertical ladle support 32, which can be detachably installed on the mobile car body 1 when the horizontal ladle support 31 and the mobile car body 1 are in a disassembled state, and is used to support the vertically placed ladle 8.

[0050] The vertical ladle support 32 is mainly used to support empty or full ladles (i.e., empty ladle 8 or ladle 8 filled with molten steel) in a vertical position. Both the horizontal ladle support 31 and the vertical ladle support 32 are detachable, and only one of them is installed. When hot repair of ladle 8 is required, the horizontal ladle support 31 is installed; when hot repair is not required, the horizontal ladle support 31 is removed and the vertical ladle support 32 is installed. In this way, the ladle hot repair trolley can be used as a vertical ladle transfer trolley, which has more uses.

[0051] The general vertical ladle support 32 includes two vertical plates 321 that are parallel and spaced apart along the width direction of the vehicle body 11. The vertical plates 321 are rectangular plates. The bottom of the two vertical plates 321 are fixed to the vehicle body 11 by corresponding fasteners. The top of the two vertical plates 321 supports and abuts against the bottom surface of the two trunnion boxes on both sides of the vertically placed ladle 8.

[0052] Further optionally, to facilitate hot repair work on ladle 8 by operators, the ladle bottom inspection platform 2 consists of multiple small platforms and ladders. For details, please refer to... Figure 2 and Figure 8 The bottom inspection platform 2 includes a sliding gate inspection platform 21, a bottom blower ventilation brick inspection platform 22, a bag-turning hook inspection and storage platform 23, and multiple first step ladders 24.

[0053] The bottom-blown permeable brick inspection platform 22 is mainly used for operators to stand on and inspect the bottom-blown permeable bricks of the ladle 8. The sliding nozzle inspection platform 21 is mainly used for operators to stand on and inspect the sliding nozzle 81 of the ladle 8. The ladle-turning hook inspection and storage platform 23 is mainly used for operators to stand on and hang or inspect the ladle-turning hook.

[0054] Reference Figure 6 and Figure 9 The bottom of the ladle 8 has a sliding gate 81 and two bottom blowing ports 82, one at a higher elevation than the other. The specific location of the sliding gate maintenance platform 21 depends on the location of the sliding gate 81, the location of the bottom blowing permeable brick maintenance platform 22 depends on the location of the two bottom blowing ports 82, and the location of the ladle hook maintenance and storage platform 23 depends on the location of the ladle hook on the ladle 8. Generally, the bottom blowing permeable brick maintenance platform 22 includes two connected bottom blowing platforms 221 at different heights. These two platforms 221 can be connected by a first-step ladder 24 to facilitate movement between them. Typically, the height of the bottom blowing platform 221 is 1.2m-1.4m lower than the height of the corresponding bottom blowing port 82, allowing for better operation by the operator standing on the platform.

[0055] Furthermore, a sliding gate inspection hydraulic station 6 is also provided on the mobile vehicle body 1. The sliding gate inspection hydraulic station 6 can be connected to the sliding gate hydraulic cylinder through a pipeline. It is mainly used to provide hydraulic power for the sliding gate 81's sliding plate movement to check whether the sliding gate 81's switch is faulty. Generally, the sliding gate inspection hydraulic station 6 is located on one side of the bottom inspection platform 2.

[0056] Further optional, see Figure 1 The hydraulic cylinder suspension device 5 includes a vertical pole 51 mounted on the mobile vehicle body 1 and a horizontal bar 52 rotatably connected to the top of the vertical pole 51. A suspension rope 53 that can be raised and lowered is provided on the horizontal bar 52 for suspending the sliding sprue hydraulic cylinder.

[0057] Generally, the hydraulic cylinder suspension device 5 is located next to the bottom inspection platform 2 and close to the sliding gate inspection platform 21. When checking the operation of the sliding gate 81, the suspended sliding gate hydraulic cylinder needs to be installed on the sliding gate 81 at the bottom of the tank to check whether the sliding gate 81 is operating normally. After checking and confirming that the sliding gate 81 is operating without problems, the sliding gate hydraulic cylinder is removed and then suspended on the hydraulic cylinder suspension device 5.

[0058] Furthermore, refer to Figure 1 The mobile vehicle body 1 includes a vehicle body 11, a wheel assembly 12 and a vehicle body drive device 13 located at the bottom of the vehicle body 11. The vehicle body drive device 13 is used to drive the wheel assembly 12 to move. A second step ladder 14 is also provided at the side end of the vehicle body 11.

[0059] The vehicle body 11 is mainly used to carry the equipment and devices on top of the vehicle body 11. The specific structure of the wheel assembly 12 and the vehicle body drive device 13 can be determined according to needs. For example, in an optional embodiment, the wheel assembly 12 includes a driving wheelset and a driven wheelset, and the vehicle body drive device 13 includes a motor, a reducer, and a universal joint, etc., mainly used to drive the vehicle body 11 and the equipment and facilities on top of it to move. The second step 14, also known as the boarding step, is mainly used for operators to board the vehicle body 11 from the ground.

[0060] Furthermore, the workflow of this ladle hot repair trolley is as follows:

[0061] (1) The movable heat insulation baffle 4 is opened to the waiting position, and the movable dust removal hood 7 is opened to the waiting position;

[0062] (2) The crane lowers the ladle 8 onto the horizontal ladle support 31, and the ladle-turning hook is placed on the ladle-turning hook maintenance and storage platform 23;

[0063] (3) The movable heat insulation baffle 4 is opened to the working position, and the movable dust removal hood 7 is opened to the working position;

[0064] (4) Use an oxygen-burning tube to clean the sliding gate, slide plate, bottom blower, and other components;

[0065] (5) Install the sliding gate hydraulic cylinder, start the sliding gate maintenance hydraulic station 6, and check if there is any abnormality in the sliding gate slide plate movement;

[0066] (6) After the sliding gate slide plate moves without any abnormality, remove the sliding gate hydraulic cylinder and hang it on the hydraulic cylinder suspension device 5.

[0067] (7) The movable heat insulation baffle 4 is opened to the waiting position, and the movable dust removal hood 7 is opened to the waiting position;

[0068] (8) The crane attaches the main hook and the auxiliary hook to lift the steel ladle 8.

[0069] The entire ladle hot repair trolley is mainly used to repair the sliding gate 81 slide plate, air-permeable bricks, etc. of ladle 8 after slag removal in continuous casting. It can also perform the cross-pass function, which can improve the hot repair efficiency of ladle 8, speed up the hot turnover efficiency of ladle 8, and thus improve the production efficiency of the steelmaking workshop.

[0070] The above are merely illustrative embodiments of this utility model and are not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A hot repair trolley for steel ladles, characterized in that, It includes a mobile vehicle body and a ladle bottom inspection platform, a horizontal ladle support, a mobile heat insulation baffle, a hydraulic cylinder suspension device, and a mobile dust cover mounted on the mobile vehicle body; the horizontal ladle support is detachably installed between the ladle bottom inspection platform and the mobile heat insulation baffle to support the horizontally placed ladle. The movable heat insulation baffle can move towards or away from the horizontal ladle support and can block the ladle opening; the hydraulic cylinder suspension device is used to suspend the sliding nozzle hydraulic cylinder; the movable dust cover can move towards or away from the ladle and can cover the ladle opening and the movable heat insulation baffle within it.

2. The ladle hot repair trolley as described in claim 1, characterized in that, The top of the mobile dust collection hood is also connected to a dust collector via a pipe.

3. The ladle hot repair trolley as described in claim 1, characterized in that, The mobile dust hood includes a top plate, two side plates connected to both sides of the top plate, and two end plates connected to both ends of the top plate. The bottom of the two side plates is slidably mounted on the mobile vehicle body. An opening is formed between the lower end of the end plate and the two side plates, through which the ladle opening and the mobile heat insulation baffle can pass.

4. The ladle hot repair trolley as described in claim 1, characterized in that, The movable heat insulation baffle includes a circular plate and a support block. The support block is located on the side of the circular plate facing away from the steel ladle, and the circular plate can block the ladle opening.

5. The ladle hot repair trolley as described in claim 1, characterized in that, A first movable wheel is provided at the bottom of the movable heat insulation baffle, and a second movable wheel is provided at the bottom of the movable dust removal hood. A first track and a second track are provided on the top surface of the movable vehicle body. The first movable wheel and the second movable wheel are slidably mounted on the first track and the second track, respectively.

6. The ladle hot repair trolley as described in claim 1, characterized in that, The mobile vehicle body is also equipped with a baffle driving device and a dust removal hood driving device. The baffle driving device is connected to the mobile heat insulation baffle and can drive the mobile heat insulation baffle to move. The dust removal hood driving device is connected to the mobile dust removal hood and can drive the mobile dust removal hood to move.

7. The ladle hot repair trolley as described in claim 1, characterized in that, The ladle hot repair trolley also includes a vertical ladle support, which can be detachably installed on the mobile vehicle body when the horizontal ladle support and the mobile vehicle body are in a disassembled state, for supporting the vertically placed ladle.

8. The ladle hot repair trolley as described in claim 1, characterized in that, The bag bottom inspection platform includes a sliding gate inspection platform, a bottom blower ventilation brick inspection platform, a bag flipping hook inspection and storage platform, and multiple first-step ladders.

9. The ladle hot repair trolley as described in claim 1, characterized in that, The mobile vehicle body is also equipped with a sliding gate maintenance hydraulic station, which can be connected to the sliding gate hydraulic cylinder through a pipeline.

10. The ladle hot repair trolley as described in claim 1, characterized in that, The hydraulic cylinder suspension device includes a vertical pole mounted on the mobile vehicle body and a horizontal bar rotatably connected to the top of the vertical pole. A suspension rope that can be raised and lowered is provided on the horizontal bar for suspending the sliding sprue hydraulic cylinder.

11. The ladle hot repair trolley as described in claim 1, characterized in that, The mobile vehicle body includes a vehicle body, a wheel assembly and a vehicle body drive device located at the bottom of the vehicle body. The vehicle body drive device is used to drive the wheel assembly to move. A second step ladder is also provided at the side end of the vehicle body.

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