Hot metal transport system and method

Abstract

The present application provides a molten iron transportation system and method. The system comprises a traction locomotive, a power supply vehicle and a molten iron vehicle; the power supply vehicle is provided with an on-board monitoring device and a power module, and the molten iron vehicle is provided with an execution mechanism; the traction locomotive is used to drive the power supply vehicle and the molten iron vehicle to move; wherein each vehicle is connected through hook operation and disconnected through unhooking operation; the power supply vehicle is used to be connected between the traction locomotive and the molten iron vehicle, to supply power to the execution mechanism through the power module, to identify the running state of the molten iron vehicle through the on-board monitoring device, and to send a control signal to the execution mechanism based on the running state; the execution mechanism is used to perform a capping, uncovering or unhooking operation in response to the control signal. The present application can realize fully automated molten iron transportation, without the need for stopping and manual operation, reducing the dependence on manual operation, and reducing the cooling of molten iron, thereby improving the efficiency and effect of molten iron transportation.

Description

Technical Field

[0001] This invention relates to the field of steel industry technology, and in particular to a molten iron transportation system and method. Background Technology

[0002] In the steel industry, molten iron is frequently transported. Currently, locomotives are used to pull unpowered molten iron cars to the blast furnace tapping platform for receiving iron. During this process, operations such as unhooking, connecting to power, opening the cover, adding the cover, and hooking the hook are required.

[0003] These operational steps require multiple stops for manual operation during molten iron transportation. Whether the ladle is full or empty, heat loss occurs during the standby process, causing the molten iron temperature to drop, resulting in low transportation efficiency and poor transportation effect. Summary of the Invention

[0004] This invention provides a molten iron transportation system and method to solve the problem of low efficiency in manual operation during molten iron transportation.

[0005] In a first aspect, embodiments of the present invention provide a molten iron transportation system, including a traction locomotive, a power supply car, and a molten iron car; the power supply car is equipped with an onboard monitoring device and a power supply module, and the molten iron car is equipped with an actuator;

[0006] The traction locomotive is used to move the power supply car and the molten iron car; the cars are coupled by a hook-and-uncouple operation and uncoupled by a hook-and-uncouple operation.

[0007] The power supply car is used to connect the traction locomotive and the molten iron car. It supplies power to the actuators through the power module, identifies the operating status of the molten iron car through the on-board monitoring device, and sends control signals to the actuators based on the operating status.

[0008] The actuator is used to perform capping, uncapping, or hook-removing operations in response to control signals.

[0009] In one possible implementation, the operating states include leaving the blast furnace, heading to the workshop, and standby, and the control signals include covering signal, uncovering signal, and unhooking signal;

[0010] Specifically, the power supply vehicle is used to send a cover-up signal to the actuator when it detects that the molten iron car has left the blast furnace, a cover-uncover signal to the actuator when it detects that the molten iron car has entered the workshop, and a hook-off signal to the actuator when it detects that the molten iron car is in standby mode.

[0011] In one possible implementation, the system also includes a blast furnace positioning device and a workshop positioning device, and the on-board monitoring device includes a detection module;

[0012] The power supply vehicle is specifically used to send detection signals to the blast furnace positioning device and the workshop positioning device through the detection module to obtain the blast furnace reflection signal and the workshop reflection signal. When the blast furnace reflection signal decreases, it is determined that the molten iron car has left the blast furnace. When the workshop reflection signal increases, it is determined that the molten iron car has moved into the workshop. When both the blast furnace reflection signal and the workshop reflection signal remain unchanged, it is determined that the molten iron car is in standby mode.

[0013] In one possible implementation, the on-board monitoring device also includes a camera;

[0014] The power supply vehicle is also used to send the status images of the actuator captured by the camera to the control center, and in response to the operation inspection results of the control center, resend control signals to the actuator; among which, the operation inspection results include cover-up abnormality, cover-opening abnormality, and hook abnormality.

[0015] In one possible implementation, the power supply vehicle is also equipped with an automatic power connection device;

[0016] The power supply car is also used to control the extension of the automatic energizing device so that the automatic energizing device contacts the molten iron car and supplies power to the actuator of the molten iron car.

[0017] In one possible implementation, the locomotive, power supply car, and molten iron car are each equipped with a coupler at both ends, and the two couplers can be coupled together.

[0018] The traction locomotive is specifically used to move the power supply car toward the molten iron car when it receives the coupling signal sent by the power supply car, until the power supply car and the molten iron car are coupled together.

[0019] In one possible implementation, the power supply car is also used to send an uncoupling signal to the traction locomotive when it moves to the charging position, so that the traction locomotive is uncoupled from the power supply car.

[0020] In one possible implementation, the system also includes an automatic charging device located at the charging position, and the power supply vehicle has a charging port;

[0021] The automatic charging device extends when the power supply vehicle is parked at the charging position to dock with the charging port and retracts after charging is complete.

[0022] In one possible implementation, the power supply vehicle is also used to send a running signal to the traction locomotive after charging is complete;

[0023] The traction locomotive is also used to move toward the power supply car when a running signal is received, until the traction locomotive and the power supply car are coupled together.

[0024] Secondly, embodiments of the present invention provide a method for transporting molten iron, comprising:

[0025] After the power module supplies power to the actuators on the molten iron car, the operating status of the molten iron car is identified by the on-board monitoring device;

[0026] Based on the operating status, control signals are sent to the actuator so that the actuator responds to the control signals to perform operations such as covering, uncovering, or removing the hook.

[0027] This invention provides a molten iron transportation system and method. A traction locomotive drives a power supply car and a molten iron car to move. During the movement of the molten iron car, the power supply car uses control signals to instruct the actuator to perform capping, capping, or unhooking operations. The capping, capping, or unhooking operations are synchronized with the movement of the molten iron car, achieving fully automated molten iron transportation without the need for stopping or manual operation. This reduces reliance on manual labor and minimizes the cooling of the molten iron, thereby improving the efficiency and effectiveness of molten iron transportation. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a structural diagram of a molten iron transportation system provided in an embodiment of the present invention;

[0030] Figure 2 This is a flowchart illustrating the implementation of a molten iron transportation method according to an embodiment of the present invention;

[0031] Figure 3 This is a front view of a molten iron transport system provided in another embodiment of the present invention;

[0032] Figure 4 This is a top view of a molten iron transport system provided in another embodiment of the present invention. Detailed Implementation

[0033] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0034] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0035] Figure 1This is a schematic diagram of the structure of a molten iron transportation system provided in an embodiment of the present invention. Figure 1 As shown, the molten iron transportation system includes a traction locomotive 11, a power supply car 12, and a molten iron car 13; the power supply car 12 is equipped with an on-board monitoring device 121 and a power supply module 122, and the molten iron car 13 is equipped with an actuator 131.

[0036] The traction locomotive 11 is used to move the power supply car 12 and the molten iron car 13; the cars are coupled by a hook-and-uncouple operation and uncoupled by a hook-and-uncouple operation.

[0037] The power supply car 12 is used to connect the traction locomotive 11 and the molten iron car 13. It supplies power to the actuator 131 through the power module 122, identifies the operating status of the molten iron car 13 through the on-board monitoring device 121, and sends control signals to the actuator 131 based on the operating status.

[0038] The actuator 131 is used to perform capping, uncapping, or hook-removing operations in response to a control signal.

[0039] In this embodiment, the common method for transporting molten iron in steel plants is to use a locomotive to pull a non-powered molten iron car to the blast furnace tapping platform for receiving iron. Due to the long iron receiving time, to improve locomotive turnaround time, the locomotive sends the non-powered molten iron car to the blast furnace for standby. The locomotive and molten iron car are then manually uncoupled at the coupler point, and the locomotive goes to pull other vehicles. When it is necessary to move the non-powered molten iron car under the blast furnace, the locomotive returns to the blast furnace. After the molten iron car below the tapping spout is filled with molten iron, the locomotive detaches the full ladle of molten iron from the furnace and then sends the empty molten iron car to the tapping spout to receive molten iron. The detachment of the locomotive from the full and empty molten iron cars is all done manually. Considering energy conservation and environmental protection requirements, the molten iron cars are equipped with lids. When the covered molten iron car enters the blast furnace, the lid must be opened to leave the ladle mouth open. After the ladle is filled with molten iron, the locomotive pulls the full ladle car out of the blast furnace. Before leaving the ladle, the lid must be closed and placed over the ladle opening. After the lid is closed, the locomotive pulls the molten iron car to the steelmaking workshop, and the above process is repeated—stopping—unhooking—connecting power—opening the lid—lifting the full ladle off the molten iron car—lifting the empty ladle onto the molten iron car—closing the lid—hooking the hook—the locomotive pulls the empty ladle car back to the blast furnace to receive molten iron. This completes one molten iron transportation cycle.

[0040] The onboard cover-opening and closing device is operated by hydraulic or mechanical power from the vehicle. Since there is no power supply on the molten iron car, the hydraulic or mechanical power must be drawn from the ground to operate. This power-drawing process is usually done manually by plugging and unplugging or automatically by a power connection device. The car must be stopped to operate when the power is connected. Thus, whether it is switching between empty and loaded cars under the tapping platform, the process of hoisting ladles in the steelmaking workshop, or the process of opening and closing the cover in front of the blast furnace or in the steelmaking workshop, the connection of power and even the operation of opening and closing the cover are all done manually.

[0041] This process involves multiple stops for locomotive operations, requiring manual intervention at several stages, and the locomotive also needs to shuttle between the blast furnace and converter. This process has several drawbacks: First, frequent locomotive operations hinder locomotive dispatch; second, the increased likelihood of traffic disruptions at intersections and road junctions increases traffic safety hazards; third, multiple stops for operations, whether the molten iron ladle is full or empty, result in heat loss and a drop in molten iron temperature during standby; fourth, the low turnover rate of molten iron cars necessitates a large number of equipment, leading to significant investment and maintenance workload; and fifth, the need for a large number of operators increases labor costs.

[0042] In this embodiment, the traction locomotive 11 provides driving power to the power supply car 12 and the molten iron car 13. Under preset logic, the traction locomotive 11 can drive the power supply car 12 to contact the molten iron car 13, so that the power supply car 12 can supply power to the molten iron car 13. The power supply car 12 can also automatically identify the operating status of the molten iron car 13 and control the actuator 131 on the molten iron car 13 according to the operating status of the molten iron car 13. The actuator 131 may include a cover-opening device, an automatic unhooking device, an automatic power-connecting device, etc. The control operation can be performed simultaneously during the movement of the molten iron car 13, without stopping and manually performing operations such as power connection, status identification, cover opening, cover opening, and unhooking, thereby solving the above-mentioned drawbacks caused by manual intervention.

[0043] In one possible implementation, the operating states include leaving the blast furnace, heading to the workshop, and standby, and the control signals include covering signal, uncovering signal, and unhooking signal;

[0044] Specifically, the power supply vehicle 12 is used to send a cover-up signal to the actuator 131 when it detects that the molten iron car 13 has left the blast furnace, to send a cover-uncover signal to the actuator 131 when it detects that the molten iron car 13 has entered the workshop, and to send a hook-off signal to the actuator 131 when it detects that the molten iron car 13 is in standby mode.

[0045] In this embodiment, Figure 2 This is a flowchart of molten iron transportation. See also... Figure 2After the molten iron car 13 receives iron in the blast furnace, its lid is open. The traction locomotive 11, coupled with the power supply car 12, runs to the blast furnace before the fully loaded molten iron car 13. After the coupler of the power supply car 12 is engaged with the coupler of the molten iron car 13, the automatic power connection device is automatically activated. The onboard monitoring device 121 takes a picture. After detecting that the coupler is engaged and that the automatic power connection device is in place, the traction locomotive 11 starts running, pulling the molten iron car 13 away from the blast furnace tapping area. When it reaches the ground detection device in front of the blast furnace, the detection device detects the train and checks its direction of travel. After determining that the molten iron car 13 has left the direction of the blast furnace, it gives a signal to put on the lid. The train continues to move forward without stopping. The lid-adding and lifting device on the molten iron car 13 starts to put on the lid while it is moving, and the lid is put on until it is completed. The onboard monitoring device 121 takes a picture for record-keeping and checks whether the lid-adding and lifting device has put on the lid properly. The traction train continues to move forward. Upon reaching the ground detection device on the steelmaking side, the direction of travel of the molten iron car 13 is detected. Once it is determined that the molten iron car 13 is heading towards the steelmaking direction, a cover-opening signal is given, and the cover-opening device begins its cover-opening operation. The onboard monitoring device 121 takes pictures each time the cover is opened, closed, the coupler is connected, the coupler is opened, the automatic power connection device extends, the automatic power connection device retracts, or the power supply car is charging, to check whether the operation of the cover-opening device and other devices is in place. The power module 122 of the power supply car 12 can use a supercapacitor module or a battery module as an energy storage device.

[0046] As can be seen from the above, when the molten iron car 13 leaves the blast furnace, it indicates that the molten iron ladle on the car 13 has completed receiving iron, and the car 13 is transporting the fully loaded molten iron ladle to the workshop. At this time, the molten iron ladle is fully loaded, and the lid is open. To ensure safety and insulation and environmental protection during transportation, the lid needs to be closed. When the molten iron car 13 is heading towards the workshop, the molten iron ladle lid is closed. To facilitate pouring out the molten iron after entering the workshop, the lid needs to be opened. When the molten iron car 13 is on standby, it means that the car 13 is parked in the parking position and receiving or pouring out molten iron. At this time, the hook can be detached, allowing the power supply car 12 to separate from the molten iron car 13, improving the utilization rate of the power supply car 12.

[0047] In one possible implementation, the system also includes a blast furnace positioning device and a workshop positioning device, and the on-board monitoring device 121 includes a detection module;

[0048] The power supply vehicle 12 is specifically used to send detection signals to the blast furnace positioning device and the workshop positioning device through the detection module to obtain the blast furnace reflection signal and the workshop reflection signal. When the blast furnace reflection signal decreases, it is determined that the molten iron car 13 has left the blast furnace. When the workshop reflection signal increases, it is determined that the molten iron car 13 has moved towards the workshop. When both the blast furnace reflection signal and the workshop reflection signal remain unchanged, it is determined that the molten iron car 13 is in standby mode.

[0049] In this embodiment, the blast furnace positioning device and the workshop positioning device are installed near the blast furnace and the workshop, respectively. The magnitude of the blast furnace reflected signal reflects the distance between the detection module and the blast furnace positioning device. A larger blast furnace reflected signal indicates a closer distance between the detection module and the blast furnace positioning device, meaning a closer distance between the power supply car 12 and the blast furnace. A smaller blast furnace reflected signal indicates that the power supply car 12 is moving away from the blast furnace, meaning the molten iron car 13 is leaving the workshop. Similarly, the magnitude of the workshop reflected signal reflects the distance between the molten iron car 13 and the workshop positioning device. A larger workshop reflected signal indicates that the molten iron car 13 is approaching the workshop. When both the blast furnace and workshop reflected signals remain unchanged, it indicates that the distance between the molten iron car 13 and both the blast furnace and the workshop remains unchanged, and it is in a standby state. To ensure the accuracy of the operating status identification, the specific magnitude, rate of change, and amplitude of the blast furnace and workshop reflected signals can be judged and used as criteria for determining the operating status.

[0050] To reduce the maintenance difficulty of the molten iron transportation system, passive devices can be selected for the blast furnace positioning device and the workshop positioning device, such as markers that can reflect light or electrical signals. The detection device sends light or electrical signals to the outside and receives the reflected signals from the blast furnace and workshop of the blast furnace positioning device and the workshop positioning device. Based on the time difference between the reflected signal and the sent signal, or the amplitude change between the reflected signal and the sent signal, the distance between the detection device and the blast furnace positioning device and the workshop positioning device can be determined.

[0051] In one possible implementation, the on-board monitoring device 121 also includes a camera;

[0052] The power supply vehicle 12 is also used to send the status image of the actuator 131 captured by the camera to the control center, and in response to the operation inspection results of the control center, resend the control signal to the actuator 131; wherein, the operation inspection results include cover-up abnormality, cover-opening abnormality, and hook abnormality.

[0053] In this embodiment, the control center can check the status of adding, removing, and hooking the cover based on the status image of the actuator 131. If there are any issues such as the cover not being added, removed, or hooked properly, the control center can send the corresponding operation inspection results to the power supply vehicle 12. The power supply vehicle 12 then resends the control signal to make the actuator 131 re-execute the operations of adding, removing, or hooking the cover until the cover is in place. This ensures the safe operation of the molten iron transportation process without human monitoring.

[0054] In one possible implementation, the power supply vehicle 12 is also equipped with an automatic power connection device;

[0055] The power supply car 12 is also used to control the extension of the automatic power connection device so that the automatic power connection device contacts the molten iron car 13 and supplies power to the actuator 131 of the molten iron car 13.

[0056] In this embodiment, after the power supply car 12 is detected to be connected to the molten iron car 13, under the control of the power supply car 12, the automatic power connection device extends to contact the molten iron car 13 and supplies power to the actuator 131 of the molten iron car 13, thereby realizing automatic power connection. When there are multiple molten iron cars 13, adjacent molten iron cars 13 can also be powered through the automatic power connection device. The molten iron car 13 closer to the power supply car 12 transfers the power from the power supply car 12 to another molten iron car 13, thereby enabling the power supply car 12 to supply power to multiple molten iron cars 13.

[0057] In one possible implementation, the traction locomotive 11, the power supply car 12, and the molten iron car 13 are each equipped with a coupler at both ends, and the two couplers can be coupled together.

[0058] The traction locomotive 11 is specifically used to move the power supply car 12 toward the molten iron car 13 when it receives the coupling signal sent by the power supply car 12, until the power supply car 12 and the molten iron car 13 are coupled together.

[0059] In this embodiment, the traction locomotive 11 is powered and can move the vehicles coupled to it. To achieve automated molten iron transportation, the couplers in this embodiment can be selected to have impact coupling. Couplers are provided at both ends of the traction locomotive 11, the power supply car 12, and the molten iron car 13, so that other vehicles can be coupled at both ends of the traction locomotive 11, the power supply car 12, and the molten iron car 13 to form a train.

[0060] The locomotive 11, which is not coupled to other vehicles, can first collide and couple with the power supply car 12, and then move the power supply car 12 toward the molten iron car 13, so that the power supply car 12 and the molten iron car 13 collide and couple, thus achieving the initial conditions for molten iron transportation. Depending on actual needs, other automatic coupling methods can also be selected, such as magnetic attraction or snap-fit. After the two vehicles approach each other and meet the coupling conditions, the couplers will automatically couple without manual operation.

[0061] In one possible implementation, the power supply vehicle 12 is also used to send an uncoupling signal to the traction locomotive 11 when it moves to the charging position, so that the traction locomotive 11 is uncoupled from the power supply vehicle 12.

[0062] In this embodiment, the charging station can be located near the workshop. After the traction locomotive 11 moves the molten iron car 13 to the parking position in the workshop, the steelmaking workshop crane will lift the fully loaded molten iron ladle away and place the empty molten iron ladle on the molten iron car 13. During this period, the power supply car 12 is parked at the charging station and can be charged. After the onboard monitoring device on the power supply car 12 detects the workshop positioning device, it sends a disengagement signal to the traction locomotive 11. The automatic disengagement device between the power supply car 12 and the traction car is activated, the coupler opens, and the traction locomotive 11 is uncoupled from the power supply car 12. The traction locomotive 11 can then go to other workstations or wait for the charging and placement of the empty molten iron ladle before moving the molten iron car 13 back to the blast furnace to begin the next molten iron transportation process.

[0063] Alternatively, the charging position can be set near the blast furnace. After the traction locomotive 11 moves the molten iron car 13 to the parking position of the blast furnace, the molten iron car 13 waits to receive iron. During this period, the power supply car 12 stops at the charging position to charge and sends an uncoupling signal to the traction locomotive 11, so that the traction locomotive 11 can move to another power supply car 12 to work during the charging period.

[0064] In one possible implementation, the system also includes an automatic charging device located at the charging position, and the power supply vehicle 12 has a charging port;

[0065] The automatic charging device extends when the power supply vehicle 12 is parked in the charging position to dock with the charging port and retracts after charging is completed.

[0066] In this embodiment, when the automatic charging device senses that the power supply vehicle 12 is parked at the charging position, it automatically extends and aligns with the charging port of the power supply vehicle 12, automatically connecting to begin charging; after the power is replenished, the automatic charging device retracts, realizing automatic charging. The automatic charging device may also have a manual charging function at the same time.

[0067] In one possible implementation, the power supply vehicle 12 is also used to send a running signal to the traction locomotive 11 after charging is completed;

[0068] The traction locomotive 11 is also used to move toward the power supply car 12 when it receives a running signal, until the traction locomotive 11 and the power supply car 12 are coupled together.

[0069] In this embodiment, during the charging of the power supply car 12, the tractor is disengaged from the power supply car 12 and moves to another power supply car 12 for operation. After the power supply car 12 has replenished its power and the molten iron car 13 is ready, the power supply car 12 sends a running signal to the tractor locomotive 11, which can then pull the ready power supply car 12 and molten iron car 13 back to the blast furnace to receive molten iron, or transport the received molten iron to the workshop.

[0070] In a specific embodiment, such as Figure 3, Figure 4 As shown, the molten iron transportation system consists of a traction locomotive 1, a power supply car 2, a power module 3, an automatic power connection device 4, an automatic uncoupling device 5, molten iron cars 6, a cover-opening device 7, an on-car monitoring device 8, an automatic charging device 9, and a ground detection device 10. There can be multiple molten iron cars 6. The power supply car 2 is positioned between the traction locomotive 1 and the molten iron cars 6. Each end of both the power supply car and each molten iron car 6 is equipped with an automatic uncoupling device 5 and an automatic power connection device 4. The cover-opening device 7 is installed on the molten iron car 6, and the automatic charging device 9 is installed on the ground at the charging position. The ground detection device 10 has its on-car portion installed on the car body and its ground portion installed on the ground near the railway line. The ground detection device 10 can check and monitor the opening and closing of the ladle cover, the uncoupling and coupling status of the couplers, and the condition of the ladle cover. The on-car monitoring device 8 is installed at one end of the car and can detect and observe the coupling status of the couplers and the automatic power connection status.

[0071] The traction locomotive 1 is responsible for providing the power for the train to move back and forth between the blast furnace and the steel plant. The power supply car 2 is located between the traction locomotive 1 and the molten iron car 6. The couplers of the power supply car 2, the traction locomotive 1 and the molten iron car 6 are connected by impact. After the couplers are connected, the automatic power connection device 4 of the front and rear cars automatically connects and the power supply is automatically turned on. Power module 3 is installed on power supply car 2 to provide power to cover-opening device 7 and automatic uncoupling device 5. At the same time, power supply car 2 serves to keep traction locomotive 1 away from the tapping spout. Automatic power connection device 4 automatically connects the power supply on power supply car 2 to molten iron car 6. Molten iron car 6 is responsible for transporting empty or fully loaded molten iron ladles. Cover-opening device 7 opens or closes the ladle cover on molten iron car. On-car monitoring device 8 is used to monitor the coupling status of the two cars, the connection status of the automatic power connection device, and the status of the ladle cover. Automatic charging device 9 is used to automatically charge power module 3 when the power is insufficient. Ground detection device 10 is installed at the blast furnace front position and the steel plant workshop front position to detect the running direction of molten iron car 6 to determine whether to open or close the cover, and to give corresponding cover-opening action signals and stop and uncoupling signals.

[0072] Before the power supply car 2 reaches the standby position, the ground element of the ground detection device 10 detects the detection element on the car and sends a signal to add or remove the lid. The power element of the ladle lid on the molten iron car 6 then activates to open or close the lid. When the molten iron car 6 reaches the parking position, the ground detection element and the on-car detection element sense each other and send a decoupling signal. Upon receiving the signal, the automatic decoupling device 5 of the car activates, the coupler opens, and the front and rear cars can detach. The on-car monitoring device 8 is used to check the lid and hook status and transmit the information to the power supply car 2.

[0073] The train consisting of power supply car 2, traction locomotive 1 and molten iron car 6 can run along straight or curved lines. The cover opening device 7 can automatically open by its own gravity in the event of a cover opening power system failure. The ground part of the ground detection device is passive and can work without power. Control signals and data can be transmitted wirelessly.

[0074] In this embodiment of the invention, a traction locomotive drives the power supply car and the molten iron car to move. During the movement of the molten iron car, the power supply car uses control signals to instruct the actuator to perform the operations of adding, removing, or unhooking the covers, so that the operations of adding, removing, or unhooking the covers are carried out synchronously with the movement of the molten iron car, realizing fully automated molten iron transportation without stopping or performing manual operations, reducing dependence on manual labor, and reducing the cooling of molten iron, thereby improving the efficiency and effect of molten iron transportation.

[0075] The following are method embodiments of the present invention. For details not described in detail, please refer to the corresponding system embodiments described above.

[0076] The method for transporting molten iron provided in this embodiment of the invention includes:

[0077] After power is supplied to the actuators on the molten iron car through the power module, the operating status of the molten iron car is identified through the on-board monitoring device;

[0078] Based on the operating status, control signals are sent to the actuator so that the actuator responds to the control signals to perform operations such as covering, uncovering, or removing the hook.

[0079] In one possible implementation, the operating states include leaving the blast furnace, heading to the workshop, and standby, and the control signals include covering signal, uncovering signal, and unhooking signal;

[0080] Sending control signals to the actuator based on the operating status includes:

[0081] When the operating status is "driving away from the blast furnace", the control signal is the cover signal;

[0082] When the operating status is "heading towards the workshop", the control signal is the cover-opening signal;

[0083] When the operating state is standby, the control signal is the unhooking signal.

[0084] In one possible implementation, the molten iron transportation system also includes a blast furnace positioning device and a workshop positioning device, and the on-board monitoring device includes a detection module;

[0085] Identifying the operating status of the molten iron car through onboard monitoring devices includes:

[0086] The detection module sends detection signals to the blast furnace positioning device and the workshop positioning device respectively, and obtains the blast furnace reflection signal and the workshop reflection signal.

[0087] When the blast furnace reflection signal decreases, it is determined that the molten iron car has left the blast furnace;

[0088] When the reflected signal in the workshop increases, it is determined that the molten iron car is heading towards the workshop;

[0089] When both the blast furnace reflection signal and the workshop reflection signal remain unchanged, the molten iron car is determined to be in standby mode.

[0090] In one possible implementation, the on-board monitoring device also includes a camera;

[0091] The method also includes:

[0092] The camera captures images of the actuator's status and sends them to the control center.

[0093] In response to the operational inspection results from the control center, a control signal is resent to the actuator; the operational inspection results include abnormal capping, abnormal cap removal, and abnormal hooking.

[0094] In one possible implementation, the power supply vehicle is also equipped with an automatic power connection device;

[0095] The method also includes:

[0096] Send an automatic power connection signal to the automatic power connection device; the automatic power connection signal is used to instruct the automatic power connection device to extend so that the automatic power connection device contacts the molten iron car and supplies power to the actuator of the molten iron car.

[0097] In one possible implementation, the locomotive, power supply car, and molten iron car are each equipped with a coupler at both ends, and the two couplers can be coupled together.

[0098] The method also includes:

[0099] Send a coupling signal to the traction locomotive so that the traction locomotive can move the power supply car toward the molten iron car until the power supply car and the molten iron car are coupled together.

[0100] In one possible implementation, the method further includes:

[0101] When moving to the charging position, a disengagement signal is sent to the traction locomotive so that the traction locomotive and the power supply car are uncoupled.

[0102] In one possible implementation, the method further includes:

[0103] After charging is complete, a running signal is sent to the traction locomotive so that the traction locomotive can move toward the power supply car when it receives the running signal, until the traction locomotive and the power supply car are coupled together.

[0104] In this embodiment of the invention, a traction locomotive drives the power supply car and the molten iron car to move. During the movement of the molten iron car, the power supply car uses control signals to instruct the actuator to perform the operations of adding, removing, or unhooking the covers, so that the operations of adding, removing, or unhooking the covers are carried out synchronously with the movement of the molten iron car, realizing fully automated molten iron transportation without stopping or performing manual operations, reducing dependence on manual labor, and reducing the cooling of molten iron, thereby improving the efficiency and effect of molten iron transportation.

[0105] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0106] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0107] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A molten iron transportation system, characterized in that, It includes a traction locomotive, a power supply car, and a molten iron car; the power supply car is equipped with an on-board monitoring device and a power supply module, and the molten iron car is equipped with an actuator; The traction locomotive is used to move the power supply car and the molten iron car; wherein, each car is coupled by a hook operation and uncoupled by a hook operation; The power supply vehicle is used to connect the traction locomotive and the molten iron car, supplies power to the actuator through the power module, identifies the operating status of the molten iron car through the on-board monitoring device, and sends control signals to the actuator based on the operating status; the power module is a supercapacitor module or a battery module; The system also includes a blast furnace positioning device and a workshop positioning device. The on-vehicle monitoring device includes a detection module. The power supply vehicle is specifically used to send detection signals to the blast furnace positioning device and the workshop positioning device through the detection module to obtain blast furnace reflection signals and workshop reflection signals. The magnitude, rate of change, and amplitude of the blast furnace reflection signals and the workshop reflection signals are used as discrimination conditions for the operating status to determine the operating status of the molten iron car. The actuator is used to perform the operation of adding a cover, removing a cover, or unhooking in response to the control signal; The operating states include leaving the blast furnace, heading to the workshop, and standby; the control signals include covering signal, uncovering signal, and unhooking signal. The power supply vehicle is specifically used to send a cover-up signal to the actuator when it detects that the molten iron car has left the blast furnace, to send an uncover signal to the actuator when it detects that the molten iron car has entered the workshop, and to send an unhooking signal to the actuator when it detects that the molten iron car is in standby mode. The charging station is located near the workshop. The power supply vehicle is also used to send a disengagement signal to the traction locomotive after the on-board monitoring device detects the workshop positioning device, so that the automatic disengagement device between the power supply vehicle and the traction locomotive can be activated. The traction locomotive is also used to work at other work stations after being disconnected from the power supply vehicle.

2. The molten iron transportation system according to claim 1, characterized in that, The power supply vehicle is specifically used to determine that the molten iron car has left the blast furnace when the blast furnace reflection signal becomes smaller, to determine that the molten iron car has moved into the workshop when the workshop reflection signal becomes larger, and to determine that the molten iron car is on standby when both the blast furnace reflection signal and the workshop reflection signal remain unchanged.

3. The molten iron transportation system according to claim 1, characterized in that, The on-vehicle monitoring device also includes a camera; The power supply vehicle is also used to send the status image of the actuator captured by the camera to the control center, and in response to the operation inspection result of the control center, resend the control signal to the actuator; wherein, the operation inspection result includes cover-up abnormality, cover-opening abnormality, and hook abnormality.

4. The molten iron transportation system according to claim 1, characterized in that, The power supply vehicle is also equipped with an automatic power connection device; The power supply car is also used to control the extension of the automatic power connection device so that the automatic power connection device contacts the molten iron car and supplies power to the actuator of the molten iron car.

5. The molten iron transportation system according to claim 1, characterized in that, The traction locomotive, the power supply car, and the molten iron car are each equipped with a coupler at both ends, and the two couplers can be coupled together. The traction locomotive is specifically used to move the power supply car toward the molten iron car when it receives the coupling signal sent by the power supply car, until the power supply car and the molten iron car are coupled together.

6. The molten iron transportation system according to claim 5, characterized in that, The system also includes an automatic charging device located at the charging position, and the power supply vehicle has a charging port; The automatic charging device extends when the power supply vehicle is parked at the charging position to dock with the charging port, and retracts after charging is completed.

7. The molten iron transportation system according to claim 6, characterized in that, The power supply vehicle is also used to send a running signal to the traction locomotive after charging is completed; The traction locomotive is also used to move toward the power supply car when it receives the running signal, until the traction locomotive and the power supply car are coupled together.

8. A method for transporting molten iron, characterized in that, Applications in power supply vehicles; The method includes: After the power module supplies power to the actuators on the molten iron car, the operating status of the molten iron car is identified by the on-board monitoring device. The power supply car is equipped with an on-board monitoring device and a power module. The molten iron car is equipped with an actuator. Each car is connected by a hook operation and disconnected by a hook-off operation. The power module is a supercapacitor module or a battery module. The onboard monitoring device includes a detection module; the process of identifying the operating status of the molten iron car through the onboard monitoring device specifically includes: The detection module on the onboard monitoring device sends detection signals to the blast furnace positioning device and the workshop positioning device respectively to obtain the blast furnace reflection signal and the workshop reflection signal. The magnitude, rate of change, and amplitude of the blast furnace reflection signal and the workshop reflection signal are used as the discrimination conditions for the operating status to determine the operating status of the molten iron car. Based on the operating status, a control signal is sent to the actuator so that the actuator responds to the control signal to perform the operation of adding a cover, removing a cover, or unhooking a hook. The operating states include leaving the blast furnace, heading to the workshop, and standby; the control signals include covering signal, uncovering signal, and unhooking signal. Sending control signals to the actuator based on the operating state includes: When the operating state is that the molten iron car leaves the blast furnace, the control signal is the cover signal; When the operating state is that the molten iron car is heading towards the workshop, the control signal is the cover-opening signal; When the operating state is that the molten iron car is in standby mode, the control signal is the unhooking signal; The charging station is located near the workshop. After the on-board monitoring device detects the workshop positioning device, it sends a disengagement signal to the traction locomotive, so that the automatic disengagement device between the power supply vehicle and the traction locomotive is activated, and the traction locomotive goes to work at other work stations after being disconnected from the power supply vehicle.

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