A work assisting device and method for a hot metal ladle car

Abstract

This invention belongs to the technical field of molten iron ladle car transportation equipment, and provides an auxiliary operating device and method for molten iron ladle cars. The auxiliary operating device includes a tilting assembly, a support assembly, and a closing assembly. The tilting assembly includes a tilting frame; the support assembly includes a support frame, a hinge block, a first drive, and a second drive member. The support frame is fixed to the molten iron ladle car. The hinge block is inserted into the top of the support frame. The bottom of the tilting frame is hinged to the hinge block. The bottom of the first drive member is hinged to the bottom of the support frame, and its top is also hinged to the tilting frame to drive the tilting frame to tilt. The bottom of the second drive member is fixedly connected to the support frame, and its top is fixedly connected to the hinge block to drive the hinge block to rise and fall. The closing assembly includes a semi-open splash guard. When the two sets of closing assemblies are closed, the two semi-open splash guards can be combined into a complete splash guard. The complete splash guard is funnel-shaped and can be inserted into the top opening of the molten iron ladle under the drive of the first and second drive members.

Description

Technical Field

[0001] This invention relates to the field of molten iron tank car transportation equipment, and in particular to an auxiliary device and method for operating molten iron tank cars. Background Technology

[0002] In the steel smelting process, molten iron ladle cars are used to transport molten iron produced in the blast furnace to the steelmaking workshop. When the ladle cars arrive at the tapping spout to discharge the molten iron, the high-temperature molten iron flows from the tapping spout into the ladle. Figure 1 As shown, during the discharge of molten iron, due to factors such as the small size of the ladle opening and the deviation of the ladle car's parking position, molten iron will splash due to impact. This not only wastes molten iron resources but may also cause serious burns to on-site operators, posing a significant safety hazard.

[0003] To prevent molten iron from splashing, anti-splash devices are usually installed on the top of the molten iron ladle. For example, some steel mills use manual methods to place anti-splash covers or anti-splash buckets on top of the molten iron ladle. However, this method requires operators to work close to the high-temperature molten iron ladle, resulting in a harsh working environment, significant safety hazards, and low efficiency in placing and removing anti-splash covers, which affects the overall operation rhythm of molten iron transportation. Some solutions use hoisting equipment to lift the anti-splash buckets to the top of the molten iron ladle. However, this method requires additional lifting equipment, resulting in high equipment investment costs. Furthermore, the hoisting process is greatly restricted by the site space, making it difficult to achieve precise positioning.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To address the problems of low efficiency, significant safety hazards, and limited operating space associated with manually installing splash guards in existing technologies, this invention provides an auxiliary device and method for operating molten iron ladle cars.

[0006] To solve the above-mentioned technical problems, this invention provides an auxiliary operating device for molten iron ladle cars. The auxiliary operating device includes two sets of tilting components, support components, and cover components symmetrically arranged on both sides along the length of the molten iron ladle car. The two sets of support components are fixed to the molten iron ladle car. The two sets of tilting components are respectively hinged to the bottom of the corresponding support components. The two sets of cover components are respectively fixedly connected to the top of the corresponding support components. The tilting component includes a tilting frame; the support component includes two sets of support frames and hinges symmetrically arranged on both sides along the width of the molten iron ladle car. The system comprises a connecting block, a first drive, and a second drive component. Two sets of support frames are fixed to the molten iron ladle car. The two sets of hinge blocks are respectively inserted and connected to the top of the corresponding support frame. The two ends of the bottom of the tilting frame are simultaneously hinged to the two sets of hinge blocks. The bottoms of the two sets of first drive components are respectively hinged to the bottom of the corresponding support frame, and the tops are simultaneously hinged to the tilting frame to drive the tilting frame to tilt. The bottoms of the two sets of second drive components are respectively fixedly connected to the corresponding support frame, and the tops are respectively fixedly connected to the corresponding hinge blocks to drive the hinge blocks to rise and fall.

[0007] The cover assembly includes a semi-open splash guard. When two sets of the cover assembly are closed, the two semi-open splash guards can be combined into a complete splash guard. The complete splash guard is funnel-shaped and can be inserted into the top opening of the molten iron ladle under the drive of the first drive member and the second drive member.

[0008] In an embodiment of the present invention, the complete splash guard includes a square top, a middle transition portion, and a circular bottom that gradually decrease in size. The size of the square top is larger than the size of the top opening of the molten iron ladle, the size of the circular bottom is smaller than the size of the top opening of the molten iron ladle, and the size of the middle transition portion is larger than the size of the top opening of the molten iron ladle. When the circular bottom is inserted into the top opening of the molten iron, the middle transition portion fits against the inner wall of the top of the molten iron ladle.

[0009] In an embodiment of the present invention, a plurality of reinforcing brackets are fixed around the intermediate transition portion. The reinforcing brackets are arranged at an angle to the intermediate transition portion, and when the intermediate transition portion is in contact with the top of the molten iron ladle, the reinforcing brackets are in contact with the outer wall of the top of the molten iron ladle.

[0010] In an embodiment of the present invention, the closing assembly further includes a flipping plate, a counterweight, a steel chain, and a cable. The flipping plate is located inside the semi-open splash guard and includes a rotating end and a free end. The rotating end is rotatably connected to the intermediate transition section. One end of the steel chain is fixedly connected to the inner surface of the flipping plate near the free end, and the other end is fixedly connected to the counterweight, so that the counterweight pulls the flipping plate to rotate to a first extreme position. One end of the cable is fixedly connected to the outer surface of the flipping plate, and the other end extends to the outside of the molten iron ladle, so that pulling the cable drives the flipping plate to rotate to a second extreme position.

[0011] In an embodiment of the present invention, when the flip plate is flipped to the first extreme position, the four sides of the flip plate are attached to the intermediate transition portion and thus achieve a limiting position, and the end face of the free end is flush with the side end of the half-open splash guard. When the flip plate is flipped to the second extreme position, the outer surface of the flip plate is attached to the intermediate transition portion and thus achieves a limiting position.

[0012] In an embodiment of the present invention, the first driving member includes a first cylinder, a primary telescopic rod, and a secondary telescopic rod. The primary telescopic rod and the secondary telescopic rod can extend and retract independently relative to the first cylinder. The first cylinder is hinged to the support frame, and the primary telescopic rod is hinged to the tilting frame so that when the primary telescopic rod extends and retracts, it drives the tilting frame to tilt around the hinge block. The secondary telescopic rod is connected to the cable extending from one end of the molten iron ladle so that when the secondary telescopic rod extends and retracts, it drives the cable to pull the tilting plate to rotate.

[0013] In an embodiment of the present invention, the second driving member includes a second cylinder and a driving rod. The support frame is L-shaped and includes a horizontal section and a vertical section. The hinge block includes an exposed end and a plug-in end. The first cylinder is hinged to the horizontal section. The vertical section has a cavity to accommodate the second cylinder. The exposed end is located at the top of the vertical section for the tilting frame to hinge. The plug-in end is inserted into the cavity and connected to the driving rod so that when the driving rod extends or retracts, it drives the plug-in end to adjust the insertion depth and simultaneously drives the exposed end to rise or fall.

[0014] To solve the above-mentioned technical problems, the present invention also provides an operation assistance method for molten iron ladle cars, applied to the above-mentioned operation assistance device, the operation assistance method comprising:

[0015] S1: The molten iron ladle is moved to the tapping point by the molten iron ladle car;

[0016] S2: Control the first drive component to drive the tilting frame to tilt upward, and at the same time control the second drive component to drive the hinge block to move upward, so that the tilting frame drives the half-open splash guard to move above the molten iron ladle until the two half-open splash guards are combined into a complete splash guard;

[0017] S3: Control the second drive unit to move the hinge block downward so that the complete splash guard is inserted into the top opening of the molten iron ladle;

[0018] S4: Control the discharge of molten iron from the tap hole, so that the molten iron flows into the molten iron ladle through the complete anti-splash hopper.

[0019] In an embodiment of the present invention, the step of controlling the first driving member to drive the tilting frame to tilt upward, and simultaneously controlling the second driving member to drive the hinge block to move upward, until the two half-open splash shields are assembled into a complete splash shield, further includes:

[0020] S21: Control the extension of the first-stage telescopic rod in the first drive component to push the tilting frame to tilt upward around the hinge block;

[0021] S22: Control the extension of the drive rod in the second drive member to push the hinge block upward;

[0022] S23: Control the retraction of the secondary telescopic rod in the first drive component to drive the cable to pull the flip plate to rotate towards the second extreme position;

[0023] S24: When the two half-open splash guards are combined into a complete splash guard, the secondary telescopic rod in the first drive unit continues to retract, driving the cable to pull the flip plate to the second limit position.

[0024] In an embodiment of the present invention, the step after controlling the discharge of molten iron from the taphole further includes:

[0025] S5: Control the extension of the secondary telescopic rod in the first drive component so that the counterweight block pulls the tilting plate to rotate towards the first extreme position by gravity.

[0026] S6: When the secondary telescopic rod in the first drive component extends to a preset length, the drive stops. At this time, the counterweight pulls the flipping plate to the first limit position.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] The operation assistance device of the present invention is directly deployed on the molten iron ladle car. It can control the automatic opening and closing of the lid assembly according to the actual working conditions without manual intervention, without being limited by the working space, and with higher work efficiency. Moreover, the symmetrical structure on both sides makes the force on the lid assembly more uniform during the closing process, avoiding the tilting problem that may be caused by unilateral drive, and ensuring the stability and reliability of the closing action.

[0029] The opening size of the anti-splash bucket gradually decreases from the square top, through the middle transition section, to the circular bottom. This allows the square top to receive the molten iron discharged from the taphole over a larger area, preventing splashing. The circular bottom is smaller than the opening at the top of the molten iron ladle, allowing it to be easily inserted into the ladle. The anti-splash bucket then acts as a guide and prevents splashing of the molten iron. Since the middle transition section is larger than the opening at the top of the ladle, after the circular bottom is inserted, it fits snugly against the inner wall of the ladle's top. This not only guides the molten iron but also seals the top of the ladle, preventing splashing or overflow from the gap between the anti-splash bucket and the ladle. It also provides a limiting and supporting function. After the anti-splash bucket is inserted into the ladle, the first and second driving components do not need to continuously apply support to the tilting frame, preventing the impact force of the molten iron on the anti-splash bucket from being transmitted to the first and second driving components through the tilting frame, thus avoiding damage to the first and second driving components.

[0030] Other features and advantages of the embodiments of the present invention will be described in the following detailed embodiments section. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a diagram illustrating the on-site operation of molten iron discharge in existing technologies.

[0033] Figure 2 This is a three-dimensional structural diagram of the first state of the work assistance device provided in the embodiment of this application;

[0034] Figure 3 This is a three-dimensional structural diagram of the second state of the work assistance device provided in the embodiments of this application;

[0035] Figure 4 This is a schematic diagram showing the partially open splash guard in the closed state of the work assistance device provided in the embodiments of this application;

[0036] Figure 5 This is a three-dimensional structural diagram of the third state of the work assistance device provided in the embodiments of this application;

[0037] Figure 6 for Figure 5 Enlarged view of point A in the image;

[0038] Figure 7 for Figure 5 Enlarged view of point B in the image;

[0039] Figure 8 This is a three-dimensional structural diagram of the fourth state of the work assistance device provided in the embodiments of this application;

[0040] Figure 9 for Figure 8 Enlarged view of point C in the image;

[0041] 1. Operational auxiliary device; 2. Molten iron ladle car; 3. Molten iron ladle; 11. Tilting assembly; 12. Support assembly; 13. Covering assembly;

[0042] 111. Tilting rack;

[0043] 121. Support frame; 122. Hinge block; 123. First driving component;

[0044] 131. Half-open splash guard;

[0045] 1111, Horizontal segment; 1112, Vertical segment;

[0046] 1121. Exposed end; 1122. Plug-in end;

[0047] 1231. First cylinder block; 1232. First-stage telescopic rod; 1233. Second-stage telescopic rod;

[0048] 1311. Square top; 1312. Middle transition section; 1313. Circular bottom; 1314. Reinforcing bracket; 1315. Flip plate; 1316. Counterweight; 1317. Steel chain; 1318. Extension rod. Detailed Implementation

[0049] Unless otherwise specified, the terms “second direction,” “first direction,” “third direction,” “inner,” and “outer” used in the following descriptions, indicating orientation or positional relationships, are understood to be based on the orientation or positional relationships shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0050] Furthermore, features specified with "first" or "second" for descriptive purposes only should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Features specified with "first" or "second" may explicitly or implicitly include at least one of the specified features. The description of "multiple" generally means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] like Figures 2-3 As shown, in order to solve the above-mentioned technical problems, the present invention provides an operating auxiliary device 1 for molten iron ladle cars. The operating auxiliary device 1 includes two sets of flipping components 11, support components 12, and cover components 13 symmetrically arranged on both sides along the length direction of the molten iron ladle car 2. The two sets of support components 12 are fixed on the molten iron ladle car 2. The two sets of flipping components 11 are respectively hinged to the bottom of the corresponding support components 12. The two sets of cover components 13 are respectively fixedly connected to the top of the corresponding support components 12.

[0054] By installing the operation auxiliary device 1 on the molten iron ladle car 2, the corresponding tilting component 11 can be driven to tilt under the action of the two sets of support components 12, and the two sets of cover components 13 can be joined together above the molten iron ladle 3. Under the action of the two sets of cover components 13, the opening at the top of the molten iron ladle 3 is expanded and guided. Thus, when molten iron is discharged into the molten iron ladle 3, the molten iron can flow into the molten iron ladle 3 through the cover components 13, achieving the anti-splashing effect when molten iron is discharged, avoiding the waste of molten iron resources, and also reducing safety hazards at the work site.

[0055] Compared to existing technologies that require manual handling or hoisting equipment to install splash guards, the work assistance device 1 of this invention is directly deployed on the molten iron ladle car 2. It can control the automatic opening and closing of the cover assembly 13 according to the actual working conditions, without manual intervention, without being limited by the working space, and with higher work efficiency. Moreover, the symmetrical structure on both sides makes the force on the cover assembly 13 more uniform during the closing process, avoiding the tilting problem that may be caused by unilateral drive, and ensuring the stability and reliability of the closing action.

[0056] like Figure 3 As shown, in an embodiment of the present invention, the tilting assembly 11 includes a tilting frame 111; the support assembly 12 includes two sets of support frames 121 symmetrically arranged on both sides along the width direction of the molten iron ladle car 2, hinge blocks 122, a first drive, and a second drive member (not shown). The two sets of support frames 121 are fixed on the molten iron ladle car 2, and the two sets of hinge blocks 122 are respectively inserted and connected to the top of the corresponding support frame 121. The two ends of the bottom of the tilting frame 111 are simultaneously hinged to the two sets of hinge blocks 122, and the bottoms of the two sets of first drive members 123 are respectively connected to the bottom of the corresponding support frame 121. The bottom is hinged, and the top is also hinged to the tilting frame 111 to drive the tilting frame 111 to tilt. The bottom of the two sets of second driving members is fixedly connected to the corresponding support frame 121, and the top is fixedly connected to the corresponding hinge block 122 to drive the hinge block 122 to rise and fall. The cover assembly 13 includes a half-open splash guard 131. When the two sets of cover assemblies 13 are closed, the two half-open splash guards 131 can be combined into a complete splash guard. The complete splash guard is funnel-shaped and can be inserted into the top opening of the molten iron ladle under the drive of the first driving member 123 and the second driving member.

[0057] During the molten iron discharge operation, the second drive unit drives the hinge block 122 to rise, thereby raising the half-open splash guard 131 to avoid the ladle body. Simultaneously, the first drive unit 123 drives the tilting frame 111 to tilt upwards, causing the two half-open splash guards 131 to move from both sides of the ladle towards the center and merge into a complete splash guard above the ladle. At this point, a gap is formed between the bottom of the complete splash guard and the top of the ladle. Therefore, the second drive unit needs to be controlled to drive the hinge block 122 to descend, allowing the complete splash guard to lower and insert into the top opening of the ladle. This three-stage action sequence of "lifting, tilting and closing, and finally lowering and inserting" not only achieves automated closing of the half-open splash guard 131 but also avoids interference between the splash guard and the ladle body during the tilting process through the lifting function of the hinge block 122, ensuring the smoothness and safety of the entire operation.

[0058] like Figure 4As shown, in an embodiment of the present invention, the complete splash guard includes a square top 1311 that gradually decreases in size, a middle transition portion 1312, and a circular bottom 1313. The size of the square top 1311 is larger than the size of the top opening of the molten iron ladle, the size of the circular bottom 1313 is smaller than the size of the top opening of the molten iron ladle, and the size of the middle transition portion 1312 is larger than the size of the top opening of the molten iron ladle. When the circular bottom 1313 is inserted into the top opening of the molten iron, the middle transition portion 1312 fits against the inner wall of the top of the molten iron ladle.

[0059] After the two semi-open splash guards 131 are combined to form a complete splash guard, the opening size gradually decreases from the square top 1311, through the middle transition section 1312, to the circular bottom 1313. This allows the square top 1311 to receive the molten iron discharged from the taphole over a larger area during molten iron discharge operations, preventing splashing. The circular bottom 1313 is smaller than the opening at the top of the ladle, allowing it to be easily inserted into the ladle. This, combined with the splash guard's function, prevents and guides the molten iron from splashing. Because the middle transition section 1312 is larger than the opening at the top of the ladle, the circular bottom 1311... 3. After the molten iron is inserted into the ladle, the intermediate transition part 1312 fits against the inner wall of the top of the ladle. This serves to guide the molten iron and seal the top of the ladle, preventing the molten iron from splashing or overflowing from the gap between the splash guard and the ladle. It also provides a limiting and supporting function. After the splash guard is inserted into the ladle, the first drive member 123 and the second drive member do not need to continuously apply a supporting force to the tilting frame 111. This prevents the splash guard from transmitting the impact force of the molten iron to the first drive member 123 and the second drive member through the tilting frame 111, thus avoiding damage to the first drive member 123 and the second drive member.

[0060] In an embodiment of the present invention, a plurality of reinforcing brackets 1314 are fixed around the intermediate transition portion 1312. The reinforcing brackets 1314 are arranged at an angle to the intermediate transition portion 1312, and when the intermediate transition portion 1312 is in contact with the top of the molten iron ladle, the reinforcing brackets 1314 are in contact with the outer wall of the top of the molten iron ladle.

[0061] By setting a reinforcing bracket 1314 at an angle to the intermediate transition section 1312, when the intermediate transition section 1312 is in contact with the inner wall of the top of the molten iron ladle, the reinforcing bracket 1314 is in contact with the outer wall of the top of the molten iron ladle. On the one hand, the contact between the reinforcing bracket 1314 and the outer wall of the molten iron ladle provides an additional support point, enhancing the connection strength between the splash guard and the molten iron ladle. On the other hand, under the action of the reinforcing bracket 1314, the impact force of molten iron on the splash guard can be offset and dispersed, preventing the splash guard from shaking or falling off the top of the molten iron ladle due to impact, thus improving the stability and reliability of the splash guard during the molten iron discharge process.

[0062] like Figures 5-9 As shown, in an embodiment of the present invention, the cover assembly 13 further includes a flip plate 1315, a counterweight 1316, a steel chain 1317, and a cable (not shown). The flip plate 1315 is located inside the semi-open splash guard 131 and includes a rotating end and a free end. The rotating end is rotatably connected to the intermediate transition portion 1312. One end of the steel chain 1317 is fixedly connected to the inner surface of the flip plate 1315 near the free end, and the other end is fixedly connected to the counterweight 1316, so that the counterweight 1316 pulls the flip plate 1315 to rotate to a first extreme position. One end of the cable is fixedly connected to the outer surface of the flip plate 1315, and the other end extends to the outside of the molten iron ladle, so that by pulling the cable, the flip plate 1315 is driven to rotate to a second extreme position.

[0063] Before using the auxiliary device 1 to discharge molten iron, the tilting plate 1315 is tilted to its second limit position by pulling the cable, so that the tilting plate 1315 opens from the splash guard (e.g., Figure 3 As shown), during the molten iron discharge process, the molten iron flows from the splash guard into the molten iron ladle; after the molten iron discharge is completed, the counterweight 1316 is released by releasing the cable, causing the tilting plate 1315 to tilt and rotate towards the first extreme position under the action of gravity (as shown). Figure 5 As shown, with the release of more cable, the counterweight 1316 pulls the tilting plate 1315 to a greater angle until the tilting plate 1315 reaches its first limit position, so that the tilting plate 1315 covers the splash guard (as shown). Figure 8 As shown in the figure, at this time, the molten iron in the ladle is sealed by the operation auxiliary device 1, which facilitates the heat preservation and dust prevention of the molten iron during the subsequent molten iron transportation operation. At the same time, it can also block the emission of high-temperature gas from the molten iron ladle, thereby improving the safety and environmental protection of the molten iron ladle transportation operation.

[0064] In an embodiment of the present invention, when the flip plate 1315 is flipped to the first extreme position, the four sides of the flip plate 1315 are attached to the intermediate transition portion 1312 and the position is limited, and the end face of the free end is flush with the side end of the half-open splash guard 131. When the flip plate 1315 is flipped to the second extreme position, the outer surface of the flip plate 1315 is attached to the intermediate transition portion 1312 and the position is limited.

[0065] By setting a first limit position and a second limit position, when the flipping plate 1315 rotates to the first limit position, the four sides of the flipping plate 1315 are in contact with the middle transition part 1312, and the free end is flush with the side end of the half-open splash guard 131. This ensures that when the two half-open splash guards 131 are closed, the free ends of the two flipping plates 1315 can be connected to each other without interference, which facilitates the heat preservation and dust prevention of molten iron in the subsequent molten iron transportation operation. When the flipping plate 1315 is in the second limit position, the outer surface of the flipping plate 1315 is in contact with the middle transition part 1312, preventing molten iron from accumulating in the gap between the flipping plate 1315 and the middle transition part 1312.

[0066] like Figure 7 As shown, in an embodiment of the present invention, the first driving member 123 includes a first cylinder 1231, a primary telescopic rod 1232, and a secondary telescopic rod 1233. The primary telescopic rod 1232 and the secondary telescopic rod 1233 can extend and retract independently relative to the first cylinder 1231. The first cylinder 1231 is hinged to the support frame 121. The primary telescopic rod 1232 is hinged to the tilting frame 111 so that when the primary telescopic rod 1232 extends and retracts, it drives the tilting frame 111 to tilt around the hinge block 122. The secondary telescopic rod 1233 is connected to the cable extending from one end of the molten iron ladle so that when the secondary telescopic rod 1233 extends and retracts, it drives the cable to pull the tilting plate 1315 to rotate.

[0067] By configuring the first drive member 123 into a first-stage telescopic rod 1232 and a second-stage telescopic rod 1233 with two independent telescopic rods, the flipping action of the tilting frame 111 and the rotation action of the tilting plate 1315 can be controlled simultaneously under the action of the first drive member 123. The first-stage telescopic rod 1232 controls the flipping of the tilting frame 111 to realize the closing and unfolding of the splash bucket; the second-stage telescopic rod 1233 controls the extension and retraction of the cable to realize the opening and closing control of the tilting plate 1315. This reduces the number of drive members and simplifies the overall structure of the work auxiliary device 1.

[0068] In an embodiment of the present invention, a slot is provided on the side of the square top 1311, and a guide rod is provided in the slot. The cable slot located in the molten iron ladle passes through the slot and provides limit and guidance for the cable under the action of the guide rod, so as to control the cable to retract and extend smoothly when the secondary telescopic rod 1233 extends and retracts, and prevent the cable from getting stuck.

[0069] In an embodiment of the present invention, the second driving member includes a second cylinder and a driving rod. The support frame 121 is L-shaped and includes a horizontal section 1111 and a vertical section 1112. The hinge block 122 includes an exposed end 1121 and a plug-in end. The first cylinder 1231 is hinged to the horizontal section 1111. The vertical section 1112 has a cavity to accommodate the second cylinder. The exposed end 1121 is located at the top of the vertical section 1112 for the tilting frame 111 to hinge. The plug-in end is inserted into the cavity and connected to the driving rod so that when the driving rod extends or retracts, it drives the plug-in end to adjust the insertion depth and simultaneously drives the exposed end 1121 to rise or fall.

[0070] The second drive component is built into the cavity of the vertical section 1112 of the support frame 121 to further simplify the overall structure of the work auxiliary device 1. At the same time, the support frame 121 can be used as a protective shell to isolate splashes and extend the service life of the second drive component. The plug end on the hinge block 122 is plugged into the cavity and the drive rod of the second drive component is connected to the plug end. This provides a guiding effect for the lifting and lowering of the plug end under the action of the vertical section 1112. In turn, the plug block can be driven to lift and lower smoothly under the action of the drive rod, so as to drive the hinge block 122 to lift and lower smoothly, so that the cover assembly 13 can be closed on the top of the molten iron ladle.

[0071] like Figure 6 As shown, in an embodiment of the present invention, a protruding extension rod 1318 is also provided on the tilting plate 1315. The steel chain 1317 is connected to the tilting plate 1315 through the extension rod 1318 to change the force position of the counterweight 1316 acting on the tilting plate 1315, making it easier for the tilting plate 1315 to rotate around the rotating end to the first extreme position under the gravity of the counterweight 1316. To solve the above-mentioned technical problems, the present invention also provides an operation assistance method for molten iron ladle cars, applied to the above-mentioned operation assistance device. The operation assistance method includes:

[0072] S1: The molten iron ladle is moved to the tapping point by the molten iron ladle car;

[0073] S2: Control the first drive component to drive the tilting frame to tilt upward, and at the same time control the second drive component to drive the hinge block to move upward, so that the tilting frame drives the half-open splash guard to move above the molten iron ladle until the two half-open splash guards are combined into a complete splash guard;

[0074] S3: Control the second drive unit to move the hinge block downward so that the complete splash guard is inserted into the top opening of the molten iron ladle;

[0075] S4: Control the discharge of molten iron from the tap hole, so that the molten iron flows into the molten iron ladle through the complete anti-splash hopper.

[0076] The operation assistance method of the present invention can drive the anti-splash bucket to assemble above the molten iron ladle under the combined action of the first driving component and the second driving component. Then, under the action of the anti-splash bucket, the opening at the top of the molten iron ladle is expanded and guided, so that when the molten iron is discharged into the molten iron ladle, the molten iron flows into the molten iron ladle through the anti-splash bucket, thereby achieving the anti-splash effect when the molten iron is discharged, avoiding the waste of molten iron resources, and reducing safety hazards at the work site.

[0077] Compared to existing technologies that require manual handling or hoisting equipment to install splash guards, the work assistance device of this invention is directly deployed on the molten iron ladle car. It can automatically control the opening and closing of the cover assembly according to the actual working conditions, without manual intervention, without being limited by the working space, and with higher work efficiency. Moreover, the symmetrical structure on both sides makes the force on the cover assembly more even during the closing process, avoiding the tilting problem that may be caused by unilateral drive, and ensuring the stability and reliability of the closing action.

[0078] In an embodiment of the present invention, the step of controlling the first driving member to drive the tilting frame to tilt upward, and simultaneously controlling the second driving member to drive the hinge block to move upward, until the two half-open splash shields are assembled into a complete splash shield, further includes:

[0079] S21: Control the extension of the first-stage telescopic rod in the first drive component to push the tilting frame to tilt upward around the hinge block;

[0080] S22: Control the extension of the drive rod in the second drive member to push the hinge block upward;

[0081] S23: Control the retraction of the secondary telescopic rod in the first drive component to drive the cable to pull the flip plate to rotate towards the second extreme position;

[0082] S24: When the two half-open splash guards are combined into a complete splash guard, the secondary telescopic rod in the first drive unit continues to retract, driving the cable to pull the flip plate to the second limit position.

[0083] First, the first-stage telescopic rod in the first driving component works in conjunction with the second driving component to push the tilting frame to tilt the anti-splash bucket above the molten iron ladle. Then, the second-stage telescopic rod in the first driving component pulls the cable and tilts the tilting plate to the second limit position, so that the tilting plate opens from inside the anti-splash bucket. Thus, during the discharge of molten iron, the molten iron flows from the anti-splash bucket into the molten iron ladle. In this way, the anti-splash bucket protects and guides the molten iron, avoiding safety hazards caused by splashing molten iron.

[0084] In an embodiment of the present invention, the step after controlling the discharge of molten iron from the taphole further includes:

[0085] S5: Control the extension of the secondary telescopic rod in the first drive component so that the counterweight block pulls the tilting plate to rotate towards the first extreme position by gravity.

[0086] S6: When the secondary telescopic rod in the first drive component extends to a preset length, the drive stops. At this time, the counterweight pulls the flipping plate to the first limit position.

[0087] By controlling the extension of the secondary telescopic rod in the first drive component, the cable is released and the counterweight is pulled by gravity to rotate the tilting plate to the first limit position. When the secondary telescopic rod in the first drive component extends to a preset length, the counterweight pulls the tilting plate to the first limit position so that the tilting plate covers the splash guard. At this time, the molten iron in the ladle is sealed by the operation auxiliary device, which facilitates the heat preservation and dust prevention of the molten iron in the subsequent molten iron transportation operation. At the same time, it can also block the emission of high-temperature gas in the molten iron ladle, improve the safety and environmental protection of molten iron ladle transportation operation.

[0088] The technical features described above can be combined arbitrarily. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by this specification, provided that such combination does not contain contradictions.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still adjust the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features; and these adjustments or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An auxiliary device for operating molten iron ladle cars, characterized in that, The working auxiliary device includes two sets of tilting components, support components, and cover components symmetrically arranged on both sides along the length of the molten iron ladle car. The two sets of support components are fixed on the molten iron ladle car. The two sets of tilting components are respectively hinged to the bottom of the corresponding support components. The two sets of cover components are respectively fixedly connected to the top of the corresponding support components. The flipping assembly includes a flipping frame; The support assembly includes two sets of support frames symmetrically arranged on both sides along the width direction of the molten iron ladle car, hinge blocks, a first drive, and a second drive component. The two sets of support frames are fixed on the molten iron ladle car. The two sets of hinge blocks are respectively inserted and connected to the top of the corresponding support frame. The two ends of the bottom of the tilting frame are simultaneously hinged to the two sets of hinge blocks. The bottom of the two sets of first drive components are respectively hinged to the bottom of the corresponding support frame, and the top is simultaneously hinged to the tilting frame to drive the tilting frame to tilt. The bottom of the two sets of second drive components are respectively fixedly connected to the corresponding support frame, and the top is respectively fixedly connected to the corresponding hinge block to drive the hinge block to rise and fall. The cover assembly includes a semi-open splash guard. When two sets of the cover assembly are closed, the two semi-open splash guards can be combined into a complete splash guard. The complete splash guard is funnel-shaped and can be inserted into the top opening of the molten iron ladle under the drive of the first drive member and the second drive member.

2. The work assistance device according to claim 1, characterized in that, The complete splash guard includes a square top, a middle transition section, and a circular bottom that gradually decrease in size. The square top is larger than the top opening of the molten iron ladle, the circular bottom is smaller than the top opening of the molten iron ladle, and the middle transition section is larger than the top opening of the molten iron ladle. When the circular bottom is inserted into the top opening of the molten iron, the middle transition section fits against the inner wall of the top of the molten iron ladle.

3. The work assistance device according to claim 2, characterized in that, Several reinforcing brackets are fixed around the intermediate transition section. The reinforcing brackets are set at an angle to the intermediate transition section, and when the intermediate transition section is in contact with the top of the molten iron ladle, the reinforcing brackets are in contact with the outer wall of the top of the molten iron ladle.

4. The work assistance device according to claim 3, characterized in that, The closing assembly also includes a tilting plate, a counterweight, a steel chain, and a cable. The tilting plate is located inside the semi-open splash guard and includes a rotating end and a free end. The rotating end is rotatably connected to the intermediate transition section. One end of the steel chain is fixedly connected to the inner surface of the tilting plate near the free end, and the other end is fixedly connected to the counterweight, so that the counterweight pulls the tilting plate to rotate to a first extreme position. One end of the cable is fixedly connected to the outer surface of the tilting plate, and the other end extends to the outside of the molten iron ladle, so that pulling the cable drives the tilting plate to rotate to a second extreme position.

5. The work assistance device according to claim 4, characterized in that, When the flip plate is flipped to the first extreme position, the four sides of the flip plate are attached to the middle transition part to achieve a limit, and the end face of the free end is flush with the side end of the half-open splash guard. When the flip plate is flipped to the second extreme position, the outer surface of the flip plate is attached to the middle transition part to achieve a limit.

6. The work assistance device according to claim 5, characterized in that, The first driving component includes a first cylinder, a primary telescopic rod, and a secondary telescopic rod. The primary telescopic rod and the secondary telescopic rod can extend and retract independently relative to the first cylinder. The first cylinder is hinged to the support frame, and the primary telescopic rod is hinged to the tilting frame so that when the primary telescopic rod extends and retracts, it drives the tilting frame to tilt around the hinge block. The secondary telescopic rod is connected to the cable extending from one end of the molten iron ladle so that when the secondary telescopic rod extends and retracts, it drives the cable to pull the tilting plate to rotate.

7. The work assistance device according to claim 6, characterized in that, The second driving component includes a second cylinder and a driving rod. The support frame is L-shaped and includes a horizontal section and a vertical section. The hinge block includes an exposed end and a plug-in end. The first cylinder is hinged to the horizontal section. The vertical section has a cavity to accommodate the second cylinder. The exposed end is located at the top of the vertical section for the tilting frame to hinge. The plug-in end is inserted into the cavity and connected to the driving rod so that when the driving rod extends or retracts, it drives the plug-in end to adjust the insertion depth and simultaneously drives the exposed end to rise or fall.

8. A method for assisting the operation of molten iron ladle cars, applied to the operation assistance device as described in any one of claims 1-7, characterized in that, The job assistance method includes: The molten iron ladle was moved to the tapping point by a ladle car. The first drive unit is controlled to drive the tilting frame to tilt upwards, while the second drive unit is controlled to drive the hinge block to move upwards, so that the tilting frame drives the half-open splash guard to move above the molten iron ladle until the two half-open splash guards are combined into a complete splash guard; The second drive unit is controlled to move the hinge block downwards so that the complete splash guard is inserted into the top opening of the molten iron ladle; Control the discharge of molten iron from the tapping spout, ensuring that the molten iron flows into the molten iron ladle through a complete anti-splash hopper.

9. The work assistance method according to claim 8, characterized in that, In the step of controlling the first drive component to rotate the tilting frame upwards, and simultaneously controlling the second drive component to move the hinge block upwards until the two half-open splash shields are joined together to form a complete splash shield, the following further includes: The first-stage telescopic rod in the first drive unit is extended to push the tilting frame to tilt upward around the hinge block; The drive rod in the second drive unit is extended to push the hinge block upward; The secondary telescopic rod in the first drive component is retracted to drive the cable to pull the flip plate to rotate towards the second extreme position; When the two half-open splash guards are combined into a complete splash guard, the secondary telescopic rod in the first drive unit continues to retract, driving the cable to pull the flip plate to the second limit position.

10. The work assistance method according to claim 8, characterized in that, The steps following the control of molten iron discharge from the taphole further include: The secondary telescopic rod in the first drive component is extended so that the counterweight pulls the tilting plate to rotate toward the first extreme position by gravity. When the secondary telescopic rod in the first drive component extends to a preset length and the drive stops, the counterweight pulls the tilting plate to the first limit position.

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