Farad capacitor power supply type ladle capping device

Abstract

The invention relates to a farad capacitor power supply type ladle capping device, and belongs to the technical field of molten iron tank transportation heat preservation equipment in the metallurgical industry. According to the technical scheme, an end arm (1) and a middle hip (2) support a tank cover (24) on one side of the molten iron tank car to form three-point support, a 24V direct-current motor (10), a speed reducer (31) and a sector gear (3) are sequentially connected to form a transmission closed loop, and the sector gear (3) is welded to the lower portion of the end arm (1); and the lower ports of the capping contactor (44) and the uncapping contactor (45) are respectively connected with the positive electrode and the negative electrode of a winding of the 24V direct-current motor (10). According to the invention, when the molten iron tank of the molten iron transport locomotive arrives at an ironmaking plant to receive molten iron and arrives at a converter of a steel plant to carry out iron loading operation, a locomotive driver or an operator remotely controls and operates uncapping and capping operation, so that the employment posts of the uncapping and capping operation of the molten iron tank are reduced, the working efficiency is improved, and the safety risk is reduced.

Description

Technical Field

[0001] This invention relates to a farad capacitor-powered molten iron ladle covering device, belonging to the technical field of molten iron ladle transportation and insulation equipment in the metallurgical industry. Background Technology

[0002] In metallurgical steel production, molten iron is mostly transported by diesel locomotives to the tapping gate of the ironmaking plant for receiving molten iron. Once filled, each ladle is transported back to the steelmaking plant by diesel locomotive, where the molten iron is then transferred to the converter for smelting. To reduce temperature loss during transport and waiting, and to meet environmental standards, many companies have designed ladle capping devices on each locomotive. Traditional ladle capping devices use a motor-driven reducer to drive a sprocket that rotates the ladle cap, or a hydraulic system to cap and uncap the molten iron. The drawback of both electric and hydraulic capping devices is the need for quick-connect electrical connectors at both the steelmaking and ironmaking ends. Operators must be present at each end of the locomotive to manually plug and unplug the power cords. On busy transport lines, this severely restricts production efficiency, increases the need for dedicated workers in the ironmaking area, and poses significant safety risks. Summary of the Invention

[0003] The purpose of this invention is to provide a farad capacitor-powered ladle capping device. This device uses a farad capacitor to store energy and power a 24V DC motor. A control unit remotely controls the mechanical transmission unit to perform the capping and uncapping operations. This allows for remote control of the capping and uncapping operations by the locomotive driver or operator when the molten iron ladle arrives at the ironmaking plant to receive molten iron or when it arrives at the steel mill to load iron into the converter. This reduces the number of labor positions required for ladle capping and uncapping, improves work efficiency, reduces safety risks, and effectively solves the aforementioned problems in the background technology.

[0004] The technical solution of this invention is: a farad capacitor power supply type molten iron ladle capping device, comprising a mechanical transmission unit, a power supply unit, and a control unit. In the mechanical transmission unit, the end arm and the middle buttock support the ladle cap on one side of the molten iron ladle car, forming a three-point support. A 24V DC motor, a reducer, and a sector gear are sequentially connected to form a transmission closed loop, and the sector gear is welded to the lower part of the end arm. The power supply unit includes a farad capacitor power supply, a main rail, a safety sliding line, and a DC power supply. The DC power supply supplies power to the farad capacitor power supply through the main rail and the safety sliding line. The control unit includes a capping contactor and a cap opening contactor. The farad capacitor power supply is connected to the upper end of the capping contactor and the cap opening contactor, respectively. The lower end of the capping contactor and the cap opening contactor are connected to the positive and negative terminals of the 24V DC motor winding, respectively.

[0005] In the mechanical transmission unit, a 24V DC motor is mounted on the high-speed power input end of the reducer via an end face flange. The low-speed power output end of the reducer is connected to the inner ends of shaft one and shaft two of the coupling. The outer ends of shaft one and shaft two are mounted on pinions and are supported and positioned by bearing seats, bearings, and bearing supports, respectively. There are two sector gears, symmetrically arranged on both sides of the locomotive. The center hole of the sector gear is hinged to the sector gear support via pin one. One side of the sector gear is welded to the lower part of the end arm. The upper end of the end arm is hinged to the molten iron ladle cover via pin three and ladle cover support one. The upper end of the intermediate arm is hinged to the ladle cover via pin three and ladle cover support one, and the lower end is hinged to the intermediate arm support via pin two. The system is supported by the car body.

[0006] The mechanical transmission unit also includes a buffer, which is set on the center line of the end of the vehicle body and is used for support after the intermediate arm is opened.

[0007] In the power supply unit, the farad capacitor power supply is installed on the vehicle body, and the DC power supply is located near the steelmaking and feeding transport rail. The positive and negative terminals of the DC power supply are connected to the main rail and the safety sliding line respectively through wires. There are two main rails, which are connected to the negative terminal of the farad capacitor power supply through a jack. The safety sliding line is located in the middle of the two main rails and is connected to the positive terminal of the farad capacitor power supply through a wire.

[0008] The control unit also includes a cover limit switch, a cover opening limit switch, a remote controller, a remote controller receiver, an electrical control box, and a power display screen. The cover opening contactor and the cover opening contactor are located inside the electrical control box, and the power display screen is located on the outer surface of the electrical control box. The remote controller controls the interlocking of the cover opening contactor and the cover opening contactor through the remote controller receiver to realize the forward and reverse rotation control of the 24V DC motor. The cover opening limit switch and the cover opening limit switch are respectively connected to the self-holding coils of the cover opening contactor and the cover opening contactor.

[0009] The beneficial effects of this invention are: by using a supercapacitor power supply to store energy for a 24V DC motor, and by using a control unit to remotely control the mechanical transmission unit to perform the capping and uncapping operations, the locomotive driver or operator can remotely control the capping and uncapping operations when the molten iron ladle arrives at the ironmaking plant to receive molten iron and when it arrives at the steel plant to load iron into the converter. This reduces the number of labor positions required for capping and uncapping molten iron ladles, improves work efficiency, and reduces safety risks. Attached Figure Description

[0010] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a top view of the present invention; In the diagram: 1. End arm; 2. Intermediate hip; 3. Sector gear; 4. Bearing seat; 5. Bearing support; 6. End arm pin; 7. End arm pin seat; 8. End arm support; 9. 24V DC motor; 10. Farad capacitor power supply; 11. Intermediate arm pin; 12. Intermediate arm pin seat; 13. Rail pressure plate; 14. Pressure gauge; 15. Quick coupling 1; 16. Air inflator; 17. T-type three-way valve; 18. High-pressure hose 1; 19. Air inflator check valve 1; 20. Pinion; 21. Three-position five-way reversing valve; 22. Oil mist lubricator; 23. Molten iron ladle lid; 24. Shaft 2; 25. Motor metal hose; 26. Lid-on limit switch; 27. Lid-off limit switch; 28. Coupling; 29. ​​Shaft 1; 30. Reducer; 31. End arm ladle lid support; 32. Ladle lid pin; 33. Intermediate arm ladle. 34. Cover support, 35. Inflatable one-way valve II, 36. High-pressure hose II, 37. Quick connector II, 38. Pipeline, 39. Molten iron ladle car, 40. Electrical control box, 41. Remote control receiver, 42. Remote control, 16. Terminal block I, 17. Terminal block II, 18. Safety sliding contact line, 19. Terminal block III, 44. Cover contactor, 45. Cover contactor, 46. Sleeper, 47. Bracket, 48. Laying iron, 49. Wire, 50. Charging pile, 51. Square tube I, 52. Square tube II, 53. Power display screen, 54. Buffer, 55. Strange power supply. Detailed Implementation

[0011] To make the purpose, technical solutions, and advantages of the invention's embodiments clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only a small part of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0012] A farad capacitor-powered molten iron ladle capping device includes a mechanical transmission unit, a power supply unit, and a control unit. In the mechanical transmission unit, the end arm 1 and the middle buttock 2 support the ladle cap 24 on one side of the molten iron ladle car, forming a three-point support. A 24V DC motor 10, a reducer 31, and a sector gear 3 are sequentially connected to form a transmission closed loop. The sector gear 3 is welded to the lower part of the end arm 1. The power supply unit includes a farad capacitor power supply 11, a main rail 15, a safety sliding line 18, and a DC power supply 50. The DC power supply 50 supplies power to the farad capacitor power supply 11 through the main rail 15 and the safety sliding line 18. The control unit includes a capping contactor 44 and a cap opening contactor 45. The farad capacitor power supply 11 is connected to the upper ends of the capping contactor 44 and the cap opening contactor 45, respectively. The lower ends of the capping contactor 44 and the cap opening contactor 45 are connected to the positive and negative terminals of the winding of the 24V DC motor 10, respectively.

[0013] In the mechanical transmission unit, the 24V DC motor 10 is mounted on the high-speed power input end of the reducer 31 via an end face flange. The low-speed power output end of the reducer 31 is connected to the inner ends of shaft 30 and shaft 25 of the coupling 29. The outer ends of shaft 30 and shaft 25 are mounted on the pinion 21 and are supported and positioned by bearing seat 5, bearing 4 and bearing support 6 respectively. There are two sector gears 3, symmetrically arranged on both sides of the locomotive. The center hole of the sector gear 3 is hinged to the sector gear support 8 via pin 7. One side of the sector gear 3 is welded to the lower part of the end arm 1. The upper end of the end arm 1 is hinged to the molten iron ladle cover 24 via pin 33 and ladle cover support 32. The upper end of the intermediate arm 2 is hinged to the ladle cover 24 via pin 33 and ladle cover support 34, and the lower end is hinged to the intermediate arm support 13 via pin 212. It is supported by the car body.

[0014] The mechanical transmission unit also includes a buffer 54, which is set on the center line of the end of the vehicle body and is used for support after the intermediate arm 2 is opened.

[0015] In the power supply unit, the supercapacitor power supply 11 is installed on the vehicle body, and the DC power supply 50 is located near the steelmaking and feeding transport rail. The positive and negative terminals of the DC power supply 50 are connected to the main rail 15 and the safety sliding line 18 respectively through wires 49. There are two main rails 15, which are connected to the negative terminal of the supercapacitor power supply 11 through the jack 48. The safety sliding line 18 is located in the middle of the two main rails 15, and the safety sliding line 18 is connected to the positive terminal of the supercapacitor power supply 11 through wires 22.

[0016] The control unit also includes a cover limit switch 27, a cover opening limit switch 28, a remote controller 42, a remote controller receiver 41, an electrical control box 40, and a power display screen 53. The cover contactor 44 and the cover opening contactor 45 are located inside the electrical control box 40, and the power display screen 53 is located on the outer surface of the electrical control box 40. The remote controller 42 controls the interlocking of the cover contactor 44 and the cover opening contactor 45 through the remote controller receiver 41 to realize the forward and reverse rotation control of the 24V DC motor 10. The cover limit switch 27 and the cover opening limit switch 28 are respectively connected to the self-holding coils of the cover contactor 44 and the cover opening contactor 45.

[0017] In practical applications, State 1: Covered working state The molten iron transport locomotive carries heavy ladles of molten iron into the steelmaking charging pit, waiting for the liquid overhead crane to hoist it into the converter for smelting. The steelmaking charging operator first checks whether the supercapacitor power supply 11 charging indicator light of each locomotive is lit and has entered the charging state. The yellow or red light flashing indicates low power alarm.

[0018] After the molten iron is added to the converter, it is hoisted back to the molten iron ladle 23 by the liquid crane. While waiting, the remote control 42 operates the lid-adding button corresponding to the ladle number. The control coil of the corresponding lid-adding contactor 44 is energized, and the positive and negative terminals of the farad capacitor power supply 11 are connected to the 24V DC motor 10. The electrical charge stored in the farad capacitor power supply 11 drives the 24V DC motor 10 to rotate forward, which drives the reducer 31 to drive the pinion 21, then the sector gear 3, and finally the two end arms 1, which drive the molten iron ladle lid 24 to rotate upward. After the lid-adding proximity switch 27 is triggered, the self-holding coil of the lid-adding contactor 44 is disconnected, the 24V DC motor 10 is de-energized and stops, the lid-adding process is completed, and the molten iron ladle 23 is in a heat preservation state waiting to go to the ironmaking plant to receive iron. The single molten iron ladle lid-adding process is completed.

[0019] State 2: Open lid working state When 2-4 molten iron ladles have accumulated, the tractor pulls the molten iron ladle car 39 into the ironmaking plant for molten iron receiving operations. At this time, the power of each farad capacitor power supply 11 is fully charged in the steelmaking charging trough. When the molten iron ladle car enters the blast furnace to receive iron, the tapping operator first operates the opening button of the remote control 42 corresponding to the ladle car number. The corresponding opening contactor 45 control coil is energized, and the farad capacitor power supply 11 is connected to the positive and negative terminals of the 24V DC motor 10. The power stored in the farad capacitor power supply 11 drives the 24V DC motor 10 to rotate in the reverse direction, driving the molten iron ladle cover 24 to rotate downward. After the opening button 28 is triggered, the self-holding coil of the opening contactor 45 is disconnected, the 24V DC motor 10 is de-energized and stops, and the opening process is completed. After the molten iron is filled, the molten iron ladle capping process is restarted. After the molten iron ladle is capped, the opening and capping operations are repeated when the next molten iron ladle is aligned with the tap hole.

[0020] Note: The safety sliding line 18 is set in the steelmaking charging area, and its total length is equal to the length of 6 molten iron ladle cars connected together. Normally, the maximum number of molten iron transported at one time is no more than 4 ladles. Each time the molten iron is transported from the ironmaking plant to the waiting position, the jacks 48 on each locomotive slide onto the safety sliding line 18 in sequence under the action of the locomotive's forward force. At the same time, the jacks 48 make close contact with the safety sliding line 18 under the action of gravity. Each locomotive enters the fast charging state in sequence. When the molten iron ladle car leaves the steelmaking area, each farad capacitor power supply 11 is fully charged.

Claims

1. A capacitive capacitor-powered molten iron ladle capping device, characterized in that: It includes a mechanical transmission unit, a power supply unit, and a control unit. In the mechanical transmission unit, the end arm (1) and the middle hip (2) support the ladle cover (24) on one side of the molten iron ladle car, forming a three-point support. A 24V DC motor (10), a reducer (31), and a sector gear (3) are connected in sequence to form a transmission closed loop. The sector gear (3) is welded to the lower part of the end arm (1). The power supply unit includes a farad capacitor power supply (11), a main rail (15), and a safety sliding speed line (18). The control unit includes a cover contactor (44) and a cover open contactor (45). The cover open contactor (45) is connected to the upper ports of the cover contactor (44) and the cover open contactor (45) respectively. The lower ports of the cover contactor (44) and the cover open contactor (45) are connected to the positive and negative terminals of the winding of the 24V DC motor (10) respectively.

2. The supercapacitor-powered molten iron ladle capping device according to claim 1, characterized in that: In the mechanical transmission unit, a 24V DC motor (10) is mounted on the high-speed power input end of the reducer (31) via an end face flange. The low-speed power output end of the reducer (31) is connected to the inner ends of shaft one (30) and shaft two (25) of the coupling (29). The outer ends of shaft one (30) and shaft two (25) are mounted on the pinion (21) and are supported and positioned by bearing seats (5), bearings (4) and bearing supports (6), respectively. There are two sector gears (3), symmetrically arranged on the locomotive. On both sides, the central hole of the sector gear (3) is hinged to the sector gear support (8) through the first pin (7). One side of the sector gear (3) is welded to the lower part of the end arm (1). The upper end of the end arm (1) is hinged to the molten iron ladle cover (24) through the third pin (33) and the first ladle cover support (32). The upper end of the intermediate arm (2) is hinged to the ladle cover (24) through the third pin (33) and the first ladle cover support (34). The lower end is hinged to the intermediate arm support (13) through the second pin (12). The vehicle body supports the structure.

3. The supercapacitor-powered molten iron ladle capping device according to claim 1, characterized in that: The mechanical transmission unit also includes a buffer (54), which is set on the center line at the end of the vehicle body and is used to support the intermediate arm (2) after it is opened.

4. The supercapacitor-powered molten iron ladle capping device according to claim 1, characterized in that: In the power supply unit, the supercapacitor power supply (11) is installed on the car body, and the DC power supply (50) is located near the steelmaking and feeding transport rail. The positive and negative terminals of the DC power supply (50) are connected to the main rail (15) and the safety sliding line (18) respectively through the wire (49). There are two main rails (15), which are connected to the negative terminal of the supercapacitor power supply (11) through the flat iron (48). The safety sliding line (18) is located in the middle of the two main rails (15), and the safety sliding line (18) is connected to the positive terminal of the supercapacitor power supply (11) through the wire (22).

5. A capacitive power supply type molten iron ladle capping device according to claim 1, characterized in that: The control unit also includes a cover limit switch (27), an open cover limit switch (28), a remote controller (42), a remote controller receiver (41), an electrical control box (40), and a power display screen (53). The cover contactor (44) and the open cover contactor (45) are located inside the electrical control box (40), and the power display screen (53) is located on the outer surface of the electrical control box (40). The remote controller (42) controls the interlocking of the cover contactor (44) and the open cover contactor (45) through the remote controller receiver (41) to realize the forward and reverse rotation control of the 24V DC motor (10). The cover limit switch (27) and the open cover limit switch (28) are respectively connected to the self-holding coils of the cover contactor (44) and the open cover contactor (45).

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