Flattening device and method for adding scrap steel into torpedo ladle

Abstract

The invention discloses a paving device for adding scrap steel into a torpedo ladle. The paving device comprises a lifting mechanism (1) and a swinging mechanism (2) which are matched with each other, the lifting mechanism (1) is arranged in the lifting mechanism rack (3), a variable frequency motor (4) is arranged at the bottom of the lifting mechanism (1), vertical rolling guide rails (5) are arranged on the two sides of the lifting mechanism rack (3), and the rolling guide rails (5) on the corresponding sides are in sliding guide fit with the sliding blocks (6). The lifting mechanism (1) is connected with an up-and-down lifting hanging bracket (7), two sides of the up-and-down lifting hanging bracket (7) are connected with the rolling guide rails (5) through sliding blocks (6), a swinging mechanism (2) is arranged in the lifting mechanism (1), the swinging mechanism (2) comprises a dual-drive air cylinder (21) which is connected with a T-shaped swinging type connecting rod (22), the lower end of the T-shaped swinging type connecting rod (22) is connected with a material stirring plate (8), and the material stirring plate (8) extends into the torpedo ladle (9). The method has the advantages that the adding amount of the high-temperature scrap steel in the torpedo ladle is increased, and the requirements of energy conservation and carbon reduction of steelmaking enterprises are met.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical technology, and in particular relates to a leveling device and method for adding scrap steel to torpedo canisters. Background Technology

[0002] The technology of adding scrap steel to torpedo ladles has begun to be implemented in metallurgical enterprises. However, due to the limitations of the torpedo ladle structure and the high-temperature conditions inside, the amount of scrap steel added at one time is generally around 8 tons, which cannot meet the energy-saving and carbon-reduction requirements of steelmaking enterprises. At the same time, since there is no specific device for leveling the added scrap steel, the piled-up scrap steel occupies a lot of space, which greatly reduces the amount of scrap steel that can be added in subsequent secondary additions, failing to meet the energy-saving and carbon-reduction requirements of steelmaking enterprises and resulting in low economic benefits. Summary of the Invention

[0003] The purpose of this invention is to solve the problems of insufficient scrap steel addition and inability to level the scrap steel in existing torpedo cans. It provides a leveling device for adding scrap steel to torpedo cans, which increases the amount of high-temperature scrap steel added to the torpedo can based on the characteristics of the scrap steel added to the torpedo can, thereby meeting the energy-saving and carbon-reduction requirements of steelmaking enterprises.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A leveling device for adding scrap steel to torpedo canisters includes a lifting mechanism and a swinging mechanism that cooperate with each other.

[0005] The lifting mechanism is located inside the lifting mechanism frame. A variable frequency motor for providing power is installed at the bottom of the lifting mechanism frame. A vertical rolling guide rail is provided on each side of the lifting mechanism frame. The axis of the rolling guide rail is parallel to the lifting direction of the lifting mechanism. Each rolling guide rail is connected to a set of sliders. The rolling guide rail and slider on the corresponding side form a sliding guide cooperation. The lifting mechanism is connected to an upper and lower lifting frame. The two sides of the upper and lower lifting frame are connected to the rolling guide rail via sliders. The frame is equipped with a swing mechanism, which includes a double drive cylinder. The lower part of the double drive cylinder is connected to a T-shaped swing rod. The lower end of the T-shaped swing rod is connected to a material-pushing plate. The material-pushing plate extends into the torpedo can to level the scrap steel inside the torpedo can.

[0006] Furthermore, the lifting frame includes a vertical frame body, with a horizontally extending guide arm fixed on each side of the frame body. A horizontally extending triangular plate is provided between the two guide arms. The triangular plate is fixed in the middle of the frame body and has a through hole at its extended outer end. The triangular plate is connected to the lifting mechanism through the through hole. The guide arms are respectively connected to the sliders on the corresponding sides for stable guidance and limiting during lifting.

[0007] Furthermore, the main body of the hanger is connected to a pair of U-shaped seats. The two U-shaped seats are on the same horizontal plane and their openings are opposite to each other. Each U-shaped seat has a hinge lug fixed at its bottom. The center line between the two U-shaped seats coincides with the axis of the main body of the hanger.

[0008] Furthermore, the T-shaped swing linkage includes a main rod and a crossbar that are perpendicular to each other. The upper middle part of the main rod is provided with a large hinge hole. The T-shaped swing linkage is connected to the hinge seat through the large hinge hole. The hinge seat is also located in the upper and lower lifting frame. The two ends of the crossbar are respectively provided with small hinge holes, which are respectively connected to the dual drive cylinders on the corresponding sides.

[0009] Furthermore, the dual-drive cylinder includes a left cylinder and a right cylinder. The fixed end of the left cylinder is connected to the hinge lug on the left side, and the telescopic end is connected to the small hinge hole on the left side of the crossbar. The telescopic end of the right cylinder is connected to the hinge lug on the right side, and the fixed end is connected to the small hinge hole on the right side of the crossbar. The centers of the two small hinge holes and the center of the large hinge hole are on the same straight line.

[0010] Furthermore, the lower end of the main rod of the T-shaped swing linkage has a long strip-shaped notch, and the upper part of the material-pulling plate is precisely embedded in the notch and connected to the T-shaped swing linkage. The material-pulling plate is a trapezoidal plate, and its lower bottom edge is set with a wavy or sawtooth structure.

[0011] Furthermore, the lifting mechanism is a screw lifting structure, the variable frequency motor has a power of 4KW, and the lifting height is 2300mm.

[0012] Furthermore, the maximum feeding angle of the feeding plate is controlled at 30°, and the stroke of the dual-drive cylinder is 150mm.

[0013] To further achieve the objective of this invention, a method for leveling scrap steel in a torpedo can is also provided, the specific steps of which include: (1) Set up an installation platform at a distance of one workstation in the forward direction of the torpedo tanker, and install the above-mentioned leveling device on the installation platform, and adjust the frequency conversion motor; (2) After the scrap steel is added to the torpedo can, the lifting mechanism is used to drive the upper and lower lifting frames to rise and fall vertically along the rolling guide rail, and the material-pulling plate is inserted into the torpedo can; (3) When the material-pushing plate reaches the upper layer of scrap steel in the torpedo can, start the dual-drive cylinder; (4) The dual-drive cylinder drives the T-type swing linkage to swing left and right, thereby driving the material feeding plate to push the upper layer of scrap steel back and forth and flatten the scrap steel; (5) After the scrap steel is laid flat, the double drive cylinder stops, and the lifting mechanism drives the material-pulling plate to lift up and remove the torpedo can, so that the secondary scrap steel can be added later.

[0014] Furthermore, the material-shifting plate extends into the torpedo canister to a maximum depth of 1500mm from the canister opening. Once in position, it shifts the scrap steel material to a flat pile. After shifting, it rises to its highest position.

[0015] Compared with the prior art, the advantages of the technical solution of the present invention are as follows: (1) This invention utilizes a lifting device and pneumatic material feeding technology to increase the amount of high-temperature scrap steel added to the torpedo canister, thus meeting the energy-saving and carbon-reducing requirements of steelmaking enterprises. (2) The device of the present invention can ensure that the torpedo tank car can pass normally without adding scrap steel, which improves production efficiency and facilitates the secondary addition of scrap steel to the torpedo tank car. (3) The present invention has a high degree of automation, realizing remote automatic material feeding and effectively avoiding the occurrence of safety accidents. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the leveling device for adding scrap steel to a torpedo can according to the present invention; Figure 2 This is a schematic diagram of the leveling device of the present invention in conjunction with a torpedo canister; Figure 3 This is a schematic diagram of the swing mechanism of the present invention; Figure 4 This is a schematic diagram of the upper and lower lifting frame of the present invention in conjunction with the torpedo canister; Figure 5 This is a structural diagram of the lifting and lowering bracket of the present invention; Figure 6 This is a top view of the lifting and lowering bracket of the present invention; Figure 7 This is a schematic diagram of the T-shaped pendulum linkage structure of the present invention. Detailed Implementation Example

[0017] To make the present invention clearer, the following description further illustrates a leveling device and method for adding scrap steel to a torpedo can. The specific embodiments described herein are for illustrative purposes only and are not intended to limit the present invention.

[0018] See Figure 1 and Figure 2 A leveling device for adding scrap steel to torpedo canisters, characterized in that: It includes a lifting mechanism 1 and a swing mechanism 2 that work together. The lifting mechanism 1 is located inside the lifting mechanism frame 3. A variable frequency motor 4 for providing power is provided at the bottom of the lifting mechanism frame 3. A vertical rolling guide rail 5 is provided on each side of the lifting mechanism frame 3. The axis of the rolling guide rail 5 is parallel to the lifting direction of the lifting mechanism 1. Each rolling guide rail 5 is connected to a set of sliders 6. The rolling guide rail 5 on the corresponding side and the slider 6 form a sliding guide cooperation. See Figure 1 , Figure 2 , Figures 4-6 The lifting mechanism 1 is connected to an upper and lower lifting frame 7. The upper and lower lifting frame 7 includes a vertical frame body 71. A horizontally extending guide arm 72 is fixed on each side of the frame body 71. A horizontally extending triangular plate 73 is provided between the two guide arms 72. The triangular plate 73 is fixed in the middle of the frame body 71 and its extended outer end is provided with a through hole 74. The triangular plate 73 is connected to the lifting mechanism 1 through the through hole 74. See Figure 3 , Figure 5 and Figure 6 The guide arm 72 of the lifting frame 7 is connected to the rolling guide rail 5 through the slider 6 on the corresponding side. It is equipped with a swing mechanism 2. The swing mechanism 2 includes a double drive cylinder 21. The lower part of the double drive cylinder 21 is connected to a T-shaped swing rod 22. The main body 71 of the hanger is connected to a pair of U-shaped seats 75. The two U-shaped seats 75 are on the same horizontal plane and their openings are opposite to each other. A hinge lug 76 is fixed at the bottom of each U-shaped seat 75. The center line between the two U-shaped seats 75 coincides with the axis of the main body 71 of the hanger. See Figure 5 , Figure 6 and Figure 7 The T-shaped swing linkage 22 includes a main rod 221 and a crossbar 222 that are perpendicular to each other. The upper middle part of the main rod 221 is provided with a large hinge hole 223. The T-shaped swing linkage 22 is connected to the hinge seat 23 through the large hinge hole 223. The hinge seat 23 is also located in the upper and lower lifting frame 7. The two ends of the crossbar 222 are respectively provided with small hinge holes 224. The small hinge holes 224 are respectively connected to the dual drive cylinders 21 on the corresponding side. See Figure 3 , Figure 5 and Figure 7 The dual-drive cylinder 21 includes a left cylinder 211 and a right cylinder 212. The fixed end of the left cylinder 211 is connected to the hinge lug 76 on the left side and the telescopic end is connected to the small hinge hole 224 on the left side of the crossbar 222. The telescopic end of the right cylinder 212 is connected to the hinge lug 76 on the right side and the fixed end is connected to the small hinge hole 224 on the right side of the crossbar 222. The center of the two small hinge holes 224 and the center of the large hinge hole 223 are on the same straight line. The T-shaped swing link 22 has a long strip-shaped notch 225 at the middle of the lower end of the main rod. A material-pulling plate 8 is connected inside the notch 225. The material-pulling plate 8 extends into the torpedo canister 9. The upper part of the material-pulling plate 8 is embedded in the notch 225 and connected to the T-shaped swing link 22. The material-pulling plate 8 is a trapezoidal plate, and its lower bottom edge is set with a wavy or sawtooth structure 81.

[0019] In this embodiment, a torpedo can scrap lifting and feeding device of the present invention is added at a work station in front of the original high-temperature scrap steel feeding port. The scrap steel pile in the torpedo can that has just been fed with scrap steel is leveled. After the torpedo can stops in place, a lifting machine is used to achieve the lowering action. The pneumatic feeding plate extends into the can body to a maximum depth of 1500mm. After it is in place, the scrap steel pile is leveled by feeding. After the feeding is finished, it is raised to the highest position.

[0020] This invention sets up an installation platform for the device at a workstation in the forward direction of the torpedo tanker, and designs a screw lifting mechanism driven by a variable frequency motor to meet the lifting requirements. Guide rails and sliders are used to ensure the stable up and down lifting and limiting of the device. At the same time, a dual-cylinder drive is used to ensure that the device moves in place during the material feeding process. The device can be operated on-site and remotely through the control box, thereby completing the scrap steel leveling work and increasing the amount of scrap steel added.

[0021] In addition to the embodiments described above, the present invention may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by the present invention.

Claims

1. A leveling device for adding scrap steel to torpedo canisters, characterized in that: It includes a lifting mechanism (1) and a swing mechanism (2) that work together. The lifting mechanism (1) is located inside the lifting mechanism frame (3), and a variable frequency motor (4) is provided at its bottom. A vertical rolling guide rail (5) is provided on each side of the lifting mechanism frame (3). The axis of the rolling guide rail (5) is parallel to the lifting direction of the lifting mechanism (1), and each rolling guide rail (5) is connected to a set of sliders (6). The rolling guide rail (5) on the corresponding side and the slider (6) form a sliding guide cooperation. The lifting mechanism (1) is connected to the upper and lower lifting bracket (7). The two sides of the upper and lower lifting bracket (7) are connected to the rolling guide rail (5) through the slider (6). The swing mechanism (2) is provided inside. The swing mechanism (2) includes a double drive cylinder (21). The lower part of the double drive cylinder (21) is connected to a T-shaped swing connecting rod (22). The lower end of the T-shaped swing connecting rod (22) is connected to a material-pulling plate (8). The material-pulling plate (8) extends into the torpedo canister (9).

2. The leveling device for adding scrap steel to torpedo cans according to claim 1, characterized in that: The lifting frame (7) includes a vertical frame body (71), with a horizontally extending guide arm (72) fixed on each side of the frame body (71). A horizontally extending triangular plate (73) is provided between the two guide arms (72). The triangular plate (73) is fixed in the middle of the frame body (71) and its extended outer end is provided with a through hole (74). The triangular plate (73) is connected to the lifting mechanism (1) through the through hole (74). The guide arms (72) are respectively connected to the sliders (6) on the corresponding sides.

3. The leveling device for adding scrap steel to torpedo cans according to claim 1, characterized in that: The main body (71) of the hanger is connected to a pair of U-shaped seats (75). The two U-shaped seats (75) are on the same horizontal plane and their openings are opposite to each other. A hinge ear (76) is fixed at the bottom of each U-shaped seat (75). The center line between the two U-shaped seats (75) coincides with the axis of the main body (71) of the hanger.

4. The leveling device for adding scrap steel to torpedo cans according to claim 3, characterized in that: The T-shaped swing link (22) includes a main rod (221) and a crossbar (222) that are perpendicular to each other. The upper middle part of the main rod (221) is provided with a large hinge hole (223). The T-shaped swing link (22) is connected to the hinge seat (23) through the large hinge hole (223). The hinge seat (23) is also located in the upper and lower lifting frame (7). The two ends of the crossbar (222) are respectively provided with small hinge holes (224). The small hinge holes (224) are respectively connected to the dual drive cylinders (21) on the corresponding side.

5. The leveling device for adding scrap steel to a torpedo can according to claim 4, characterized in that: The dual-drive cylinder (21) includes a left cylinder (211) and a right cylinder (212). The fixed end of the left cylinder (211) is connected to the hinge lug (76) on the left side and the telescopic end is connected to the small hinge hole (224) on the left side of the crossbar (222). The telescopic end of the right cylinder (212) is connected to the hinge lug (76) on the right side and the fixed end is connected to the small hinge hole (224) on the right side of the crossbar (222). The center of the two small hinge holes (224) and the center of the large hinge hole (223) are on the same straight line.

6. The leveling device for adding scrap steel to torpedo cans according to claim 4, characterized in that: The T-shaped swing link (22) has a long strip-shaped notch (225) at the middle of the lower end of the main rod (221). The upper part of the material-pulling plate (8) is embedded in the notch (225) and connected to the T-shaped swing link (22). The material-pulling plate (8) is a trapezoidal plate, and its lower bottom edge is set as a wave-shaped or sawtooth structure (81).

7. The leveling device for adding scrap steel to a torpedo can according to any one of claims 1 to 6, characterized in that: The lifting mechanism (1) is a screw lifting structure, the power of the variable frequency motor (4) is 4KW, and the lifting height is 2300mm.

8. The leveling device for adding scrap steel to a torpedo can according to any one of claims 1 to 6, characterized in that: The maximum angle of the feeding plate (8) is controlled at 30°, and the stroke of the dual-drive cylinder (21) is 150mm.

9. A method for leveling a torpedo can filled with scrap steel as described in claim 1, characterized in that: Step 1: Set up an installation platform one workstation distance away in the forward direction of the torpedo tanker, and install the above-mentioned leveling device on the installation platform, and adjust the variable frequency motor (4). Step 2: After the scrap steel is added to the torpedo can (9), the lifting mechanism (1) drives the upper and lower lifting frame (7) to rise and fall vertically along the rolling guide rail (5) to extend the material plate (8) into the torpedo can (9); Step 3: When the material feeding plate (8) reaches the upper layer of scrap steel in the torpedo can (9), start the dual drive cylinder (21). Step 4: The dual-drive cylinder (21) drives the T-shaped swing connecting rod (22) to swing left and right, thereby driving the material-pushing plate (8) to push the upper layer of scrap steel back and forth and flatten the scrap steel; Step 5: After the scrap steel is laid flat, the double drive cylinder (21) stops, and the lifting mechanism (1) drives the material-pulling plate (8) to lift up and remove the torpedo can (9).

10. The method for leveling scrap steel in a torpedo can according to claim 9, characterized in that: The maximum depth of the material-pulling plate (8) extending into the torpedo can (9) is 1500mm from the can opening. After reaching the position, the scrap steel is piled up and leveled. After the material-pulling is finished, it is raised to the highest position.

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