CN113501013A - Permanent magnet motor direct-drive large-tonnage carrying device, molten iron transport vehicle and iron mixing vehicle - Google Patents

Abstract

The invention provides a permanent magnet motor direct-drive large-tonnage carrying device, a molten iron transport vehicle and a torpedo car. The invention gets rid of the alignment and traction of the internal combustion locomotive, autonomously operates, realizes unmanned, intelligent and clean operation, solves the problem of safe and seamless butt joint of the blast furnace smelting tapping device and the hot metal ladle, solves the problem of manual operation accidents, reduces the heat loss of the molten iron, and reduces the fuel oil cost, the maintenance cost and the labor cost.

Description

Permanent magnet motor direct-drive large-tonnage carrying device, molten iron transport vehicle and iron mixing vehicle

Technical Field

The invention relates to the field of metallurgical transport vehicles, in particular to a permanent magnet motor direct-drive large-tonnage carrying device, a molten iron transport vehicle and a torpedo hot metal mixer.

Background

In iron and steel enterprises, molten iron smelted by a blast furnace is generally transported to a steel plant by a locomotive traction 'one-tank' molten iron tank car or a torpedo car to be processed by the next process flow. Two railway lines are generally arranged below a blast furnace taphole, two lines of hot metal ladle cars or hot metal mixer cars are respectively matched with a locomotive before tapping, in the tapping process, in order to ensure tapping continuity, after one tank is filled, a hot metal spout is swung into a hot metal tank of the other hot metal line, the hot metal tank which is just filled with one tank is pulled by a diesel locomotive to move forward by the distance of one hot metal tank, the next hot metal tank is aligned with the taphole (alignment), so that tapping is carried out between the two lines of hot metal tanks in turn until all the hot metal tanks are filled with hot metal, and one-time tapping is finished. After tapping, the diesel locomotive uniformly pulls the molten iron tank car or the iron mixing car to the steel plant, and the turnover rate of the equipment is low.

When the hot metal ladle does not have diesel locomotive to be linked, in order to prevent the swift current car must place the skate, still need remove the skate during pulling, and place and remove the skate and must accomplish by manual work, and the unhook must also accomplish by manual work after locomotive and hot metal car coupler are linked, consequently molten iron splash can often appear and produce the injury accident of people. The locomotive also needs to be provided with drivers, shunting personnel and other related working personnel, so that the labor cost is wasted.

The diesel locomotive is in an idle waiting state for ensuring the maneuverability, so that great waste of equipment resources and energy is caused, the diesel locomotive seriously emits black smoke during starting and loading, and the emission seriously exceeds the standard. The hot metal ladle car filled with molten iron has a large amount of calorific losses at the in-process of waiting, and resistant material loss is very big simultaneously, and iron steel interface molten iron temperature drop is great, still needs the secondary heating at the molten iron of transporting to steel plant back, also causes the waste of the energy.

In order to meet production requirements, an intelligent pure electric driving mode is adopted, the alignment and traction of a diesel locomotive are eliminated, autonomous operation is realized, the unmanned, intelligent and clean are realized, the molten iron can be sent to a steel plant immediately without waiting after being filled with molten iron so as to reduce heat loss, the turnover utilization rate of equipment is improved, the molten iron can enter the next production process without secondary heating, and a permanent magnet direct drive motor driven large-tonnage one-tank molten iron transport vehicle and a mixed iron vehicle are required to be developed.

Disclosure of Invention

The invention aims to provide a permanent magnet motor direct-drive large-tonnage carrying device, a molten iron transport vehicle and a torpedo car, which get rid of alignment and traction of an internal combustion locomotive and autonomous operation, realize unmanned, intelligent and clean operation, solve the problem of safe and seamless butt joint of a blast furnace smelting tapping device and a molten iron tank, solve the problem of artificial operation accidents, reduce the heat loss of molten iron, and reduce the fuel oil cost, the maintenance cost and the labor cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

the permanent magnet motor direct-drive large-tonnage carrying device comprises a driven walking device, a permanent magnet motor direct-drive walking device and a carrying unit, wherein the carrying unit is loaded between the driven walking device and the permanent magnet motor direct-drive walking device, and the permanent magnet motor direct-drive walking device directly drives the carrying unit and the driven walking device to move forward through the permanent magnet motor, so that the carrying unit and the driven walking device are dragged or pushed.

The carrying unit is a tank-made molten iron conveying tank which is arranged on a large frame, the large frame is connected with a driven running gear and a permanent magnet motor direct-drive running gear through a large center plate, and a heat preservation device is further arranged on the large frame.

The heat preservation device comprises a heat preservation cover, a connecting rod, a hydraulic cylinder and a mounting seat, wherein the mounting seat is fixed on the large frame, the heat preservation cover is arranged at the upper end of a tank of molten iron transportation tank, the connecting rod and the hydraulic cylinder are hinged on the mounting seat, the other end of the connecting rod is hinged with the heat preservation cover, and the hydraulic cylinder drives the connecting rod to drive the heat preservation cover to lift.

The carrying unit is a hot metal ladle, tipping devices are arranged at two ends of the hot metal ladle, and the tipping devices are respectively arranged on the driven walking device and the permanent magnet motor direct-drive walking device through a large center plate.

The driven walking device comprises a walking frame body I, a large swing bolster I and a driven bogie, wherein the large swing bolster I is connected with the driven bogie through a careful plate, the walking frame body I is connected with the large swing bolster I through a central plate, and the walking frame body I is connected with a carrying unit through the large central plate.

Permanent magnet motor directly drives running gear is including walking support body II, big truck bolster I, big truck bolster II, driven bogie, the big gross axle load bogie of permanent magnet motor direct drive, driven bogie is connected with big truck bolster I through the small heart dish, permanent magnet motor direct drive big gross axle load bogie is connected with big truck bolster II through the small heart dish, big truck bolster I is connected with walking support body II through the central disk, big truck bolster II is connected with walking support body II through the central disk, it connects the carrying unit through big heart dish to walk support body II.

The permanent magnet motor direct-drive large axle load bogie comprises an edge beam, a middle beam, a damping device and a permanent magnet motor direct-drive wheel set, wherein the permanent magnet motor direct-drive wheel set is formed by installing the permanent magnet motor between two wheels, an output shaft of the permanent magnet motor is used as a wheel axle, the permanent magnet motor is connected with the middle beam in a flexible suspension or torsion bar mode, the middle beam and the edge beam at two ends form an integrated steel structure frame, the damping device is arranged between the two ends of the wheel axle and the edge beam, and the middle beam is connected with a large swing bolster II through a small center plate.

The unit braking and parking system comprises an air compressor, an air storage cylinder and a unit brake, the air compressor is connected with the air storage cylinder, the air storage cylinder is connected with the unit brake, and the unit brake is installed on a wheel rim of a permanent magnet motor direct drive wheel pair.

The electric control system comprises a permanent magnet motor control system and a super capacitor charging system, the super capacitor charging system comprises a super capacitor, a breaker K0, a breaker K6 and a shunt, the super capacitor is connected with the breaker K0, one output end of the breaker K0 is connected with the permanent magnet motor control system, the other output end of the breaker K0 is connected with one end of the shunt, the other end of the shunt is connected with the breaker K6 and is grounded, and one output end of the breaker K6 is connected with a charging pole; permanent-magnet machine control system includes circuit breaker, converter, brake resistance, circuit breaker K0 is connected to the input of circuit breaker, the converter is connected to the output of circuit breaker, brake resistance and permanent-magnet machine connect the converter.

And a connection buffer device with an automatic unhooking function is arranged at the outer side ends of the driven running gear and the permanent magnet motor direct-drive running gear.

Compared with the prior art, the invention has the beneficial effects that:

1) an under-furnace diesel locomotive or an electric locomotive is cancelled, the problems that the fuel consumption of the diesel locomotive is large, the environment is polluted or the electric locomotive needs to be provided with a special direct current overhead line are solved, the energy is saved, the environment is protected, and the zero emission is realized.

2) The automatic control system has the functions of remote control (manual control) and automatic driving, is used for realizing unmanned and intelligent operation of molten iron transportation, and improves the turnover utilization rate of equipment.

3) The iron-making and steel-making centralized control center of the ferrous metallurgy system is operated remotely, the starting and the stopping are stable, the traveling crane is positioned accurately, the safety and the reliability are realized, the working efficiency is high, and the labor cost is saved.

4) The safety performance in molten iron transportation is improved, the molten iron tank car can not move due to misoperation in the molten iron subpackaging process, and equipment and personal safety in the molten iron subpackaging operation are ensured.

5) And the modular design is adopted, so that the reconstruction and the daily maintenance are convenient to implement, and the maintenance cost is low.

6) The heat loss of the molten iron in the whole process from the tapping of the blast furnace to the delivery of the molten iron to the steel plant is reduced.

7) The transportation operation efficiency is improved, and 'one tank is completely filled'.

Drawings

FIG. 1 is a schematic view of the overall structure of a permanent magnet motor direct-drive large-tonnage molten iron carrying transport vehicle according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic structural view of a large frame;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic view of the construction of the thermal insulation apparatus;

FIG. 6 is a schematic diagram of the overall structure of a permanent magnet motor direct-drive large-tonnage carrying iron mixing vehicle according to the invention;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a schematic view of the active end tipping arrangement of FIG. 5;

FIG. 9 is a schematic illustration of the driven end tipping arrangement of FIG. 5;

FIG. 10 is a schematic view of the construction of the driven running gear;

FIG. 11 is a top view of FIG. 10;

FIG. 12 is a schematic view of the structure of a running carriage body I;

FIG. 13 is a top view of FIG. 12;

FIG. 14 is a schematic structural view of a large bolster I;

FIG. 15 is a top view of FIG. 14;

FIG. 16 is a schematic structural diagram of a direct-drive running gear of a permanent magnet motor;

FIG. 17 is a top view of FIG. 16;

FIG. 18 is a schematic illustration of the construction of the carriage II;

FIG. 19 is a top view of FIG. 18;

FIG. 20 is a schematic structural view of the large bolster II;

FIG. 21 is a top view of FIG. 19;

FIG. 22 is a schematic structural diagram of a permanent magnet motor directly driving a bogie with large axle load;

FIG. 23 is a top view of FIG. 22;

FIG. 24 is a side view of FIG. 22;

FIG. 25 is a schematic view of a unit brake and park system;

FIG. 26 is a schematic diagram of an electrical control system;

FIG. 27 is an electrical schematic of the electrical control system;

FIG. 28 is a schematic view showing the structure of a coupling buffer device with an automatic unhooking function;

FIG. 29 is a top view of FIG. 28;

fig. 30 is a side view of fig. 28.

In the figure: 1. one-pot made hot metal pot; 2. a large frame; 3. a driven running gear; 4. the permanent magnet motor directly drives the running gear; 5. a connection buffer device with an automatic unhooking function; 6. an electrical control system; 7. a super capacitor; 8. a flame-retardant and heat-insulating carport; 9. a unit braking and parking system; 10. a heat preservation device; 11. a frame body; 12. the large core plate is put on the disc; 13. a rescue support; 14. an upper side bearing; 15. a hot metal ladle support; 16. a walking frame body I; 17. a large swing bolster I; 18. a driven bogie; 19. a guard rail; 20. the walking frame body I is connected with a beam; 21. a walking frame body I is arranged on a large center plate; 22. a central disc is hung on the walking frame body I; 23. a bearing beam is arranged beside the walking frame body I; 24. the large swing bolster I is a large swing bolster body; 25. a large swing bolster I is arranged on the lower center plate; 26. a large swing bolster I is carefully coiled and coiled; 27. a walking frame body II; 28. a large swing bolster II; 29. the permanent magnet motor directly drives the large axle load bogie; 30. the walking frame body II is connected with the beam; 31. the walking frame body II is arranged on the lower plate of the center plate; 32. hanging the central plate of the walking frame body II; 33. a supporting beam is arranged beside the walking frame body II; 34. the big swing bolster II is a big swing bolster body; 35. a large swing bolster II is arranged on the center plate lower plate; 36. c, hanging the big swing bolster II on a careful plate; 37. carefully placing the tray; 38. a boundary beam; 39. a center sill; 40. flexible suspension; 41. a damping device; 42. the permanent magnet motor directly drives a wheel set; 43. a small lower side bearing; 44. an automatic unhooking device; 45. connecting a buffer device; 46. an air compressor; 47. an air storage barrel; 48. a unit brake; 49 pipelines; 50. a heat-preserving cover; 51. a connecting rod; 52. a hydraulic cylinder; 53. a mounting seat; 54. a metal mixer type hot metal ladle; 55. a tipping device; 56. an active end tipping device; 57. a driven end tipping device; 58. a telescopic charging pole; 59. a charging electrode plate; 60. fill electric pile.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.

Example 1:

a permanent magnet motor direct-drive large-tonnage molten iron carrying transport vehicle is shown in figures 1-5 and 10-30 and comprises a one-tank molten iron tank 1, a large vehicle frame 2, a driven traveling device 3, a permanent magnet motor direct-drive traveling device 4, a connecting buffer device 5 with an automatic unhooking function, an electric control system 6, a super capacitor 7, a flame-retardant heat-insulation shed 8, a unit braking and parking system 9 and a heat preservation device 10. The 'one-can' hot metal ladle 1 is positioned at the upper middle part of the whole ladle, the large frame 2 is positioned at the middle part of the whole ladle, two ends of the large frame 2 are respectively connected with the driven traveling device 3 and the permanent magnet motor direct-drive traveling device 4 through the large core plate, the driven traveling device 3 and the permanent magnet motor direct-drive traveling device 4 are provided with a coupler buffer device 5 with an automatic decoupling function near two outer ends, a flame-retardant heat-insulation shed 8 is arranged above the permanent magnet motor direct-drive traveling device 4, the electric control system 6 and the super capacitor 7 are arranged in the flame-retardant heat-insulation shed 8, and the heat preservation device 10 is arranged on the upper plane of the large frame 2 and used for preserving heat of the 'one-can' hot metal ladle 1.

Referring to fig. 3, the cart frame 2 comprises a frame body 11, a large center plate upper plate 12, a rescue support 13, an upper side bearing 14 and a hot metal tank support 15. Rescue supports 13 are arranged on two sides of the frame body 11 and used for supporting the molten iron tank car during accident emergency repair or vehicle maintenance; the upper large core plate 12 is arranged on the lower planes of two end parts of the frame body 11 and is installed with the lower large core plate 21 of the walking frame body I on the upper part of the walking frame body I16. The upper side bearing 14 is arranged on the lower plane of the frame body 11 corresponding to the upper disc 12 of the large central disc, and the hot metal ladle support 15 is arranged on the upper plane of the bent beam close to the middle part and used for placing the hot metal ladle 1 in a one-ladle mode.

Referring to fig. 10 and 11, the driven running gear 3 comprises a running frame body I16, a large swing bolster I17, a driven bogie 18 and a guard rail 19; referring to fig. 12 and 13, the walking frame body I16 comprises a connecting beam 20 of the walking frame body I, a lower central disc 21 of the walking frame body I, an upper central disc 22 of the walking frame body I and a lateral supporting beam 23 of the walking frame body I. The upper part of the connecting beam 20 is provided with a large central disc lower disc 21, the lower part is provided with two walking frame body I central disc upper discs 22, and two sides are provided with walking frame body I side bearing beams 23. Referring to fig. 14 and 15, the large swing bolster i 17 comprises a large swing bolster i large swing bolster body 24, a large swing bolster i center plate lower plate 25 and a large swing bolster i caution plate upper plate 26, the large swing bolster i center plate lower plate 25 is arranged at the center of the upper plane of the large swing bolster i large swing bolster body 24, the large swing bolster i caution plate upper plates 26 are arranged on the lower planes at the two ends of the large swing bolster i large swing bolster body 24, and the large swing bolster i caution plate upper plates 26 are correspondingly installed with the caution plate lower plate at the center of the upper part of the driven bogie 18; the guard rail 19 is arranged on the upper plane of the walking frame body I16, and the safety of personnel during loading is guaranteed under the conditions of vehicle maintenance and the like.

Referring to fig. 16 and 17, the permanent magnet motor direct-drive traveling device 4 comprises a traveling frame body II 27, a large swing bolster I17, a large swing bolster II 28, a driven bogie 18 and a permanent magnet motor direct-drive large axle load bogie 29. Referring to fig. 18 and 19, the walking frame body II 27 comprises a walking frame body II connecting beam 30, a walking frame body II large center plate lower plate 31, a walking frame body II connecting beam center plate upper plate 32 and a walking frame body II connecting beam side supporting beam 33. The upper part of the connecting beam 30 of the connecting beam of the second walking frame body is provided with a lower plate 31 of a large central plate of the connecting beam of the second walking frame body, the lower part of the connecting beam 30 of the second walking frame body is provided with an upper plate 32 of the central plate of the connecting beam of the second walking frame body, and two sides of the connecting beam are provided with bearing beams 33 beside the connecting beam of the second walking frame body, so that the big frame is prevented from tipping; referring to fig. 20 and 21, the large swing bolster ii 28 comprises a large swing bolster body 34 of the large swing bolster ii, a center plate lower plate 35 of the large swing bolster ii and a care plate upper plate 36 of the large swing bolster ii. The center of the upper plane of the big swing bolster II and the big swing bolster body 34 is provided with a big swing bolster II center plate lower plate 35, the lower planes of the two ends are provided with big swing bolster II care plate upper plates 36, and the small swing bolster II care plate lower plates at the center of the upper part of the driven bogie 18 and the small swing plate lower plate at the upper part of the permanent magnet motor direct drive big axle load bogie 29 are correspondingly installed. In fig. 22-24, the permanent magnet motor direct drive large axle load bogie 29 is divided into a two-axle drive form and a single-axle drive form, but the structural forms are consistent, and the permanent magnet motor direct drive large axle load bogie comprises a small center plate lower disc 37, an edge beam 38, a middle beam 39, a flexible suspension 40 (a spring) or a torsion bar, a damping device 41, a permanent magnet motor direct drive wheel pair 42 and a small lower side bearing 43. The edge beam 38 and the middle beam 39 are welded into an H-shaped frame structure, the lower disc 37 is carefully arranged at the upper part of the middle beam 39, the flexible suspension or torsion bar is arranged at the side surface of the middle beam 39 and is used for suspending the shell of the permanent magnet motor, and the permanent magnet motor arranged on the permanent magnet motor direct driving wheel pair 42 directly drives the wheel pair to rotate under the control of the electric control system 6, so that the whole vehicle is driven to run forwards or backwards. Under the condition that needs the braking, permanent-magnet machine becomes motor dynamic braking, turns into the electric energy with the mechanical energy of vehicle operation to realize slowing down, simultaneously, combine accurate location technique, can realize accurate parking. The damping devices 41 are symmetrically arranged below the two ends of the side beam 38 and play a role in damping and balancing the vehicle when the vehicle runs or the track is uneven; small lower side bearings 43 are mounted on the upper plane at both ends of the intermediate beam 39 for supporting the side bearing beams 33 of the carriage body ii.

Referring to fig. 25, the unit braking and parking system 9 includes an air compressor 46, an air storage drum 47, a unit brake 48 and a pipeline 49, the air compressor 46 and the air storage drum 47 are installed in the flame-retardant and heat-insulating shed 8 on the upper portion of the permanent magnet motor direct-drive traveling device 4, and the unit brake 48 is installed on the wheel rim of the permanent magnet motor direct-drive wheel pair 42. The unit brake and parking system 9 can realize vehicle braking and has a parking brake function.

Referring to fig. 27, the electrical control system includes a permanent magnet motor control system and a super capacitor charging system, the super capacitor charging system includes a super capacitor, a circuit breaker K0, a circuit breaker K6 and a shunt, the super capacitor is connected with the circuit breaker K0, one output end of the circuit breaker K0 is connected with the permanent magnet motor control system, the other output end of the circuit breaker K0 is connected with one end of the shunt, the other end of the shunt is connected with the circuit breaker K6 and is grounded, and one output end of the circuit breaker K6 is connected with a charging pole; permanent-magnet machine control system includes circuit breaker, converter, brake resistance, circuit breaker K0 is connected to the input of circuit breaker, the converter is connected to the output of circuit breaker, brake resistance and permanent-magnet machine connect the converter. The electric control system 6 comprises a permanent magnet motor control system and a super capacitor charging system. The permanent magnet motor control system controls the permanent magnet motor to directly drive the permanent magnet motor direct-drive traveling device to move forward, backward and travel, and the super capacitor charging system can charge the super capacitor.

The flame-retardant heat-insulation shed 8 is arranged on the upper plane of the permanent magnet motor direct-drive traveling device 4, and an electric control system 6 and a super capacitor 7 arranged in the shed are prevented from being burnt by molten iron splashing. The super capacitor 7 is a quick-charging and quick-discharging product and provides power for the operation of the whole vehicle, and the super capacitor is provided with an interface connected with a ground charging pile. The characteristic of quick charging and quick discharging of the super capacitor enables the permanent magnet direct drive motor to drive a large-tonnage one-tank molten iron transport vehicle to be continuously and alternately used, and the tapping continuity is ensured.

The coupling buffer device 5 with automatic unhooking function includes an automatic unhooking device 44 and a coupling buffer device 45, see fig. 28-30. The automatic unhooking device 44 is composed of a hydraulic push rod and a conventional hook device, the hook device is manually unhooked, the automatic unhooking device is driven by the hydraulic push rod to unhooking, and the automatic unhooking device can be remotely controlled to achieve unmanned operation and eliminate potential safety hazards. The connection buffer device 45 is connected between the automatic unhooking device 44 and the vehicle body.

Referring to fig. 5, the heat preservation device 10 is arranged on the upper plane of the large frame 2 and is used for preserving heat of the one-pot hot metal tank 1. Comprises a heat preservation cover 50, a connecting rod 51, a hydraulic cylinder 52 and a mounting seat 53. The mounting seats 53 are symmetrically welded on the upper planes of the two ends of the large frame 2, the hydraulic cylinders 52 and the connecting rods 51 are respectively linked with the mounting seats 53, and the heat-insulating covers 50 are fixed on the connecting rods 51. Before the molten iron tank car runs to the furnace mouth for tapping, the heat preservation device 10 is opened, and the heat preservation device 10 is closed after tapping, so that the temperature drop can be effectively reduced.

Before tapping of a blast furnace, a liquid metal transportation main control room sends an advancing or retreating instruction, after a remote control signal receiver of a main control system of a large-tonnage one-tank molten iron transportation vehicle driven by a permanent magnet direct drive motor receives the instruction, the main control module controls a permanent magnet motor to rotate through a permanent magnet motor control circuit, the permanent magnet motor rotates to drive a power bogie to operate, and then the permanent magnet direct drive motor is driven to drive the large-tonnage one-tank molten iron transportation vehicle to operate. The communication module of the main control system feeds back parameters such as the running speed and the position of the permanent magnet direct drive motor-driven large-tonnage one-tank molten iron transport vehicle to the liquid metal transport main control room, the liquid metal transport main control room accurately controls the permanent magnet direct drive motor-driven large-tonnage one-tank molten iron transport vehicle to perform alignment operation through visual operation, a blast furnace can be tapped after the blast furnace is aligned, a tapping hole is closed after a molten iron tank is filled with molten iron, the liquid metal transport main control room controls the permanent magnet direct drive motor-driven large-tonnage one-tank molten iron transport vehicle to transport the molten iron tank filled with the molten iron to a steel plant, and the molten iron tank is emptied to return to wait for next tapping operation. And after the super capacitor returns, the super capacitor can be charged by utilizing the waiting time of the tapping interval.

The permanent magnet motor direct-driven large-tonnage carried 'one-tank' molten iron transport vehicle can replace an internal combustion locomotive and an alignment tractor to finish alignment and transportation operation of a molten iron tank under a blast furnace, so that the transportation cost and the labor cost are reduced; the remote alignment and transportation are completed by receiving the remote signal sent by the liquid metal transportation main control chamber, the operation is convenient, the alignment is accurate and reliable, the efficiency is high, and the misoperation and molten iron splashing can be prevented; unmanned and intelligent operation, stable starting and stopping, accurate positioning of traveling crane, safety, reliability and high working efficiency; the molten iron is filled and moved immediately, so that the heat loss of the molten iron in the waiting process is reduced; the super capacitor is used as a power supply to supply power, the charging time is not more than 15 minutes, and the charging is carried out by utilizing the blast furnace tapping interval time, so that the continuous tapping of the blast furnace and the instant delivery of molten iron to a steel plant are realized.

Example 2:

as shown in fig. 6-30, the permanent magnet motor direct-drive large-tonnage carrying hot metal mixer comprises a hot metal mixer type hot metal ladle 54, a tipping device 55, a driven traveling device 3, a permanent magnet motor direct-drive traveling device 4, a connection buffer device 5 with an automatic unhooking function, an electric control system 6, a super capacitor 7, a flame-retardant heat-insulation shed 8 and a unit braking and parking system 9. The mixed iron hot metal ladle 54 is positioned at the upper middle part of the whole car, and the tipping device 55 comprises a driving end tipping device 56 and a driven end tipping device 57. The driving end tipping device 56 is arranged on the upper portion of the traveling device 3, the driven end tipping device 57 is arranged on the upper portion of the permanent magnet motor direct-drive traveling device 4, the driven traveling device 3 and the permanent magnet motor direct-drive traveling device 4 are provided with the car coupler buffer device 5 with the automatic unhooking function at two ends close to the outer side, the permanent magnet motor direct-drive traveling device 4 is provided with the flame-retardant heat-insulation shed 8 above, and the electric control system 6 and the super capacitor 7 are arranged in the flame-retardant heat-insulation shed 8.

The tipping device 55 comprises a driving end tipping device 56 and a driven end tipping device 57, wherein the lower part of the driving end tipping device 56 is provided with a large-core disc upper disc 12, and a walking frame I large-core disc lower disc 21 on the upper part of a walking frame I16 is installed. The driven end tilting device 57 is provided with a large center plate upper plate 12 and a moving frame body I large center plate lower plate 31 on a connecting beam 30 of the moving frame body I.

The driven traveling device 3, the permanent magnet motor direct-drive traveling device 4, the connection buffer device 5 with the automatic unhooking function, the electric control system 6, the super capacitor 7, the flame-retardant heat-insulation shed 8 and the unit braking and parking system 9 in the embodiment are the same as those in the embodiment 1.

Before tapping of a blast furnace, a liquid metal transportation main control room sends an advancing or retreating instruction, after a remote control signal receiver of a main control system of the permanent magnet direct drive motor driven mixer receives the instruction, the main control module controls a permanent magnet motor to rotate through a permanent magnet motor control circuit, the permanent magnet motor rotates to drive a power bogie to operate, and then the permanent magnet direct drive motor is driven to drive the mixer to operate. The communication module of the main control system feeds back parameters such as the running speed and the position of the permanent magnet direct drive motor-driven hot metal mixer to the liquid metal transportation main control room, the liquid metal transportation main control room accurately controls the alignment operation of the permanent magnet direct drive motor-driven hot metal mixer through visual operation, a blast furnace can be tapped after the hot metal tank is filled with the molten iron, a tapping hole is closed, the liquid metal transportation main control room controls the permanent magnet direct drive motor-driven hot metal mixer to transport the hot metal tank filled with the molten iron to a steel plant, and the hot metal tank is emptied to return to wait for the next tapping operation. And after the super capacitor returns, the super capacitor can be charged by utilizing the waiting time of the tapping interval.

The permanent magnet motor direct-driven large-tonnage carrying hot metal mixer car can replace an internal combustion locomotive and an alignment tractor to finish alignment and transportation operation of a hot metal ladle under a blast furnace, thereby reducing transportation cost and labor cost; the remote alignment and transportation are completed by receiving the remote signal sent by the liquid metal transportation main control chamber, the operation is convenient, the alignment is accurate and reliable, the efficiency is high, and the misoperation and molten iron splashing can be prevented; unmanned and intelligent operation, stable starting and stopping, accurate positioning of traveling crane, safety, reliability and high working efficiency; the molten iron is filled and moved immediately, so that the heat loss of the molten iron in the waiting process is reduced; the super capacitor is used as a power supply to supply power, the charging time is not more than 15 minutes, and the charging is carried out by utilizing the blast furnace tapping interval time, so that the continuous tapping of the blast furnace and the instant delivery of molten iron to a steel plant are realized.

Claims (10)

1. The permanent magnet motor direct-drive large-tonnage carrying device is characterized by comprising a driven walking device (3), a permanent magnet motor direct-drive walking device (4) and a carrying unit, wherein the carrying unit is arranged between the driven walking device (3) and the permanent magnet motor direct-drive walking device (4), the permanent magnet motor direct-drive walking device (4) directly drives to advance through the permanent magnet motor, and the carrying unit and the driven walking device (3) are dragged or pushed.

2. The permanent magnet motor direct-drive large-tonnage carrying device as claimed in claim 1, wherein the carrying unit is a molten iron tank (1), the molten iron tank (1) is mounted on a large vehicle frame (2), the large vehicle frame (2) is connected with a driven running gear (3) and a permanent magnet motor direct-drive running gear (4) through a large center plate, and a heat preservation device (10) is further mounted on the large vehicle frame (2).

3. The permanent magnet motor direct-drive large-tonnage carrying device as claimed in claim 2, wherein the heat preservation device (10) comprises a heat preservation cover (50), a connecting rod (51), a hydraulic cylinder (52) and a mounting seat (53), the mounting seat (53) is fixed on the large frame (2), the heat preservation cover (50) is arranged at the upper end of a tank-made molten iron transportation tank (1), the connecting rod (51) and the hydraulic cylinder (52) are hinged on the mounting seat (53), the other end of the connecting rod (51) is hinged with the heat preservation cover (50), and the hydraulic cylinder (52) drives the connecting rod (51) to drive the heat preservation cover (50) to ascend and descend.

4. The permanent magnet motor direct-drive large-tonnage carrying device as recited in claim 1, wherein the carrying unit is a hot metal ladle (54), tipping devices (55) are arranged at two ends of the hot metal ladle (54), and the tipping devices (55) are respectively mounted on the driven running gear (3) and the permanent magnet motor direct-drive running gear (4) through large center plates.

5. The permanent magnet motor direct-drive large-tonnage carrying device as claimed in claim 1, wherein the driven traveling device (3) comprises a traveling frame body I (16), a large swing bolster I (17) and a driven bogie (18), the large swing bolster I (17) is connected with the driven bogie (18) through a careful plate, the traveling frame body I (16) is connected with the large swing bolster I (17) through a central plate, and the traveling frame body I (16) is connected with the carrying unit through a large central plate.

6. The permanent magnet motor direct-drive large-tonnage carrying device as claimed in claim 1, wherein the permanent magnet motor direct-drive traveling device (4) comprises a traveling frame body II (27), a large swing bolster I (17), a large swing bolster II (28), a driven bogie (18) and a permanent magnet motor direct-drive large axle load bogie (29), the driven bogie (18) is connected with the large swing bolster I (17) through a small core plate, the permanent magnet motor direct-drive large axle load bogie (28) is connected with the large swing bolster II (28) through a small core plate, the large swing bolster I (17) is connected with the traveling frame body II (27) through a center plate, the large swing bolster II (28) is connected with the traveling frame body II (27) through a center plate, and the traveling frame body II (27) is connected with the carrying unit through a large core plate.

7. The permanent magnet motor direct-drive large-tonnage carrying device as claimed in claim 6, wherein the permanent magnet motor direct-drive large axle load bogie (28) comprises an edge beam 38, a middle beam (39), a damping device (41) and a permanent magnet motor direct-drive wheel pair (42), the permanent magnet motor direct-drive wheel pair (42) is formed by installing a permanent magnet motor between two wheels, an output shaft of the permanent magnet motor serves as a wheel axle, the permanent magnet motor is connected with the middle beam (39) in a flexible suspension (40) or torsion bar mode, the middle beam (39) and the edge beams (38) at two ends form an integrated steel structure frame, the damping device (41) is arranged between the two ends of the wheel axle and the edge beam (38), and the middle beam (39) is connected with the large swing bolster II (28) through a small center plate.

8. The permanent magnet motor direct-drive large-tonnage carrying device as claimed in claim 7, further comprising a unit braking and parking system (9), wherein the unit braking and parking system (9) comprises an air compressor (46), an air storage cylinder (47) and a unit brake (48), the air compressor (46) is connected with the air storage cylinder (47), the air storage cylinder (47) is connected with the unit brake (48), and the unit brake (48) is installed on a wheel rim of the permanent magnet motor direct-drive wheel pair (42).

9. The permanent magnet motor direct-drive large-tonnage carrying device as claimed in claim 1, further comprising an electrical control system (6), wherein the electrical control system (6) comprises a permanent magnet motor control system and a super capacitor charging system, the super capacitor charging system comprises a super capacitor, a breaker K0, a breaker K6 and a shunt, the super capacitor is connected with a breaker K0, one output end of the breaker K0 is connected with the permanent magnet motor control system, the other output end of the breaker K0 is connected with one end of the shunt, the other end of the shunt is connected with a breaker K6 and is grounded, and one output end of the breaker K6 is connected with a charging pole; permanent-magnet machine control system includes circuit breaker, converter, brake resistance, circuit breaker K0 is connected to the input of circuit breaker, the converter is connected to the output of circuit breaker, brake resistance and permanent-magnet machine connect the converter.

10. The permanent magnet motor direct-drive large-tonnage carrying device as set forth in claim 1, wherein a connection buffer device (5) with an automatic unhooking function is mounted at the outer side ends of the driven running gear (3) and the permanent magnet motor direct-drive running gear (4).

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