A mobile platform calcium carbide furnace discharge and transfer system and method thereof

Abstract

A mobile platform-type calcium carbide furnace discharge transfer system and method, belonging to the technical field of calcium carbide production equipment, includes a furnace body, an open-loop transfer track arranged around the furnace bore, and an open section of the transfer track in the cooling zone. A mobile platform is located at the open section, and the mobile platform has at least one more mobile track than the transfer track. A series of receiving trolleys carrying calcium carbide pots are arranged on the mobile track. Hook mechanisms are provided at both ends of the open section of the transfer track, and winches are located at both ends of the transfer track. The grippers on the hook mechanisms automatically clamp the neck of the wire rope on the winch and engage or disengage it with the head and tail ends of the receiving trolley. After engaging the wire rope, the receiving trolley can run on the transfer track and its corresponding mobile track. Once the receiving trolley is filled with molten calcium carbide and disengages the wire rope, it can be transported by the mobile platform to a corresponding cooling location. This invention improves the automation level of the furnace discharge transfer and the scheduling capability of the trolleys.

Description

Technical Field

[0001] This invention relates to a mobile platform-type calcium carbide furnace discharge and transfer system and method, belonging to the technical field of calcium carbide production equipment. Background Technology

[0002] The existing calcium carbide unloading and transfer process mainly utilizes a winch to drive a steel wire rope to pull a calcium carbide trolley along a track. Specifically, there are two transfer methods: First, patent document CN116294634A discloses a robot-based method for calcium carbide recycling, transfer, and cooling. In this method, a steel wire rope pulls a calcium carbide trolley filled with molten calcium carbide to the cooling zone. An overhead crane clamps the calcium carbide pot filled with molten calcium carbide and transfers it to a support in the cooling zone. The cooled calcium carbide is then removed from the mold, and the empty calcium carbide pot is returned to the calcium carbide trolley for replacement. Although this method has a simple trolley movement path, a small number of trolleys, and does not require changing the steel wire rope during transfer, it requires coordination with the overhead crane to complete the three tasks of pot transfer, removal of molten calcium carbide, and pot replacement in a short time, resulting in excessively high crane operating frequency and a heavy production load. Second, patent document CN215247... 627U discloses a calcium carbide tapping, transfer, and storage system. This system utilizes a track-changing device on the track. Before changing tracks, the steel cable pulling the calcium carbide trolley needs to be manually unhooked and moved to another track. Then, the steel cable of the other track is manually hooked onto the calcium carbide trolley, allowing it to move between the inner and outer ring tracks. This facilitates direct cooling of the calcium carbide trolley filled with molten calcium carbide on the track. After cooling, the calcium carbide pot on the trolley is transferred by an overhead crane to the pot elevator for subsequent turning and demolding. After demolding, the empty calcium carbide pot returns to the calcium carbide trolley. Although the overhead crane has low working pressure, the connection between the winch and the calcium carbide trolley requires manual unhooking of the steel cable. Furthermore, the direct cooling of the calcium carbide trolley on the track after tapping makes the transfer position of the trolley change frequently and lacks flexibility, resulting in difficulty in scheduling the trolley during tapping and thus affecting production efficiency. Summary of the Invention

[0003] To address the problems of low automation, poor scheduling timeliness, and low production efficiency in existing calcium carbide furnace tapping and transfer methods, this invention proposes a mobile platform-type calcium carbide furnace tapping and transfer system. It includes a furnace body, an open-loop transfer track surrounding the furnace bore, and a cooling zone surrounding the transfer track on the side furthest from the furnace body. The transfer track within the cooling zone has an open section, at which a mobile platform is located. The mobile platform has at least one more mobile track than the existing transfer track. Each mobile track can accommodate a receiving trolley carrying a calcium carbide pot. Hook mechanisms are installed at the joints of the open sections of the transfer tracks, and winches are located at both ends of the transfer tracks. The hook mechanisms automatically clamp the neck of the wire rope on the winches and engage or disengage it from the head and tail ends of the receiving trolleys. After engaging the wire rope, the receiving trolley can run on the transfer track and its corresponding mobile track. Once the receiving trolley is filled with molten calcium carbide and disengaged from the wire rope, it can be transferred by the mobile platform to a designated cooling location.

[0004] A crane system is installed above the cooling zone. The crane system can separate the cooled calcium carbide from the calcium carbide pot and demold it.

[0005] The hooking mechanism includes a base, on which a first drive unit is provided. The drive end of the first drive unit is connected to a movable guide frame. A second drive unit is provided on the movable guide frame. A gripping mechanism is provided on the swing shaft of the second drive unit. The second drive unit can drive the gripping mechanism to swing up and down. When it swings to the upper position, the gripping mechanism can be perpendicular to the horizontal ground. The gripping mechanism includes a third drive unit. The movable end of the third drive unit is provided with a gripper. The gripper can grip the neck of the wire rope on the winch and is driven by the third drive unit to achieve the lifting action.

[0006] The mobile platform includes a mobile base, a power wheel assembly at the lower end of the mobile base, a mobile track on the mobile base, and a horizontal track arranged perpendicular to the transfer direction at the opening section of the transfer track. The power wheel assembly moves on the horizontal track to realize the docking action between the mobile track and the transfer track.

[0007] The transfer track includes an independent inner transfer track and an outer transfer track, with the furnace body located in the area between the inner and outer transfer tracks.

[0008] The cooling zone surrounding the transfer track is divided into two sections, and each section of the transfer track has an open section.

[0009] The calcium carbide tapping and transfer system includes two sets of symmetrically arranged transfer tracks, and the mobile platforms are respectively symmetrically arranged at the opening sections of the transfer tracks.

[0010] The calcium carbide tapping and transfer system includes two sets of parallel transfer tracks. The cooling zone around the transfer tracks is divided into two sections. Each set of transfer tracks in the cooling zone has an open section, and each section has only one open section.

[0011] This invention also proposes a mobile platform-type calcium carbide tapping and transfer method, which includes the following steps:

[0012] S1. Wire rope attachment: The mobile platform is controlled by the control system to move and connect the receiving trolley carrying the empty calcium carbide pot on the mobile track with the transfer track that needs to be received. The grippers on the hook mechanism automatically clamp the neck of the wire rope and drive it to be attached to the head and tail ends of the receiving trolley respectively.

[0013] S2. Receiving and Transferring Material: The winch drives the receiving trolley to transfer the material to the furnace opening of the furnace body to wait for it to be discharged. When it is discharged, the calcium carbide liquid is discharged from the furnace opening by the calcium carbide pot on the receiving trolley. After the discharge is completed, the winch drives the receiving trolley filled with calcium carbide liquid to transfer it through the transfer track to the moving track that facilitates the cooling of calcium carbide liquid.

[0014] S3, Rope Removal and Cooling: The grippers on the drive hook mechanism clamp the steel wire ropes attached to the head and tail ends of the receiving trolley. After the grippers are lifted to detach the steel wire ropes from the receiving trolley, the grippers return to their initial position. The control system controls the moving platform to move horizontally, and the receiving trolley filled with calcium carbide liquid is moved to the corresponding position for cooling.

[0015] After step S3, step S4, calcium carbide demolding, is performed: The overhead crane system separates the calcium carbide cooled to a suitable temperature from the calcium carbide pot on the receiving trolley for demolding, or the receiving trolley cooled to a suitable temperature is reattached with a steel wire rope and transported to the transfer track for demolding by the overhead crane system, or the receiving trolley cooled to a suitable temperature is attached with a steel wire rope and transported to a suitable position on the moving platform of another section before the calcium carbide is demolded by the overhead crane system.

[0016] The beneficial effects of this invention are:

[0017] A. By setting up multiple moving tracks and connecting them with the transfer tracks on the mobile platform, the receiving trolley filled with molten calcium carbide can be cooled at the non-connection position on the mobile platform, thus not affecting the normal transfer and receiving of the receiving trolley at the connection position. This makes the scheduling of the receiving trolley more flexible, and at the same time greatly reduces the workload of the overhead crane system, making the overall furnace transfer efficiency higher and improving the overall scheduling capability of the system.

[0018] B. By using the hook mechanism set at the docking point of the transfer track, the wire rope on the winch can be automatically hooked and automatically detached from the head and tail ends of the docked receiving trolley, reducing the labor intensity of personnel and improving the automation level of trolley transfer. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the transfer system according to the first embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the hook and hanger mechanism of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the mobile platform of the present invention.

[0022] Figure 4 This is a schematic diagram of the transfer system according to the second embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the transfer system according to the third embodiment of the present invention.

[0024] In the diagram: 1-furnace body; 2-transfer track; 3-winner; 31-wire rope; 4-cooling zone; 5-crane system; 6-moving platform; 61-moving seat; 62-power wheel set; 63-horizontal track; 7-receiving trolley; 8-calcium carbide pot; 9-hooking mechanism; 91-base; 92-first drive unit; 93-movable guide frame; 94-second drive unit; 95-third drive unit; 96-gripper; 10-moving track. Detailed Implementation

[0025] To make the objectives, technical solutions, and beneficial effects of the present invention clearer, the embodiments of the present invention are described in detail below with reference to the accompanying drawings. The embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0026] Example 1

[0027] See Figures 1-3 A mobile platform-type calcium carbide tapping and transfer system includes two sets of symmetrically arranged open-loop transfer tracks 2. Each transfer track 2 includes an independent inner transfer track and an outer transfer track. A furnace body 1 is located in the area between the inner and outer transfer tracks. The furnace body 1 has three furnace holes. A cooling zone 4 is set around the transfer track 2 on the side furthest from the furnace body 1. The transfer track 2 within the cooling zone 4 has an open section. Mobile platforms 6 are symmetrically arranged at the open sections of the transfer tracks 2. Each mobile platform 6 has three mobile tracks 10. A receiving trolley 7 carrying a calcium carbide pot 8 can be arranged on the track 10. Hook mechanisms 9 are provided at both ends of the open section of the transfer track 2. Winch 3 is provided at both ends of the transfer track 2. The hook mechanisms 9 can clamp the neck of the wire rope 31 on the winch 3 and hook or unhook it to the head and tail ends of the receiving trolley 7. After hooking the wire rope 31, the receiving trolley 7 can run on the transfer track 2 and its corresponding moving track 10. After the receiving trolley 7 filled with calcium carbide liquid is unhooked from the wire rope 31, it can be transferred to the corresponding position for cooling by the hook mechanism 9.

[0028] Furthermore, a crane system 5 is installed above the cooling zone 4. The crane system 5 can separate the cooled calcium carbide from the calcium carbide pot 8 on the receiving trolley 7 and demold it. Preferably, the crane system 5 is an intelligent unmanned crane system that can be automatically operated by the control system to perform the mold opening and demolding actions.

[0029] See Figure 2 The hook mechanism 9 includes a base 91, on which a first drive unit 92 is provided. The drive end of the first drive unit 92 is connected to a movable guide frame 93. A second drive unit 94 is provided on the movable guide frame 93. A gripping mechanism is provided on the swing shaft of the second drive unit 94. The second drive unit 94 can drive the gripping mechanism to swing up and down. When it swings to the upper position, the gripping mechanism can be perpendicular to the horizontal ground. The gripping mechanism includes a third drive unit 95. The movable end of the third drive unit 95 is provided with a gripper 96. The gripper 96 can grip the neck of the wire rope 31 on the winch 3 and is driven by the third drive unit 95 to achieve lifting and lowering.

[0030] Furthermore, the first drive unit 92 and the third drive unit 95 are preferably electric cylinder structures, the second drive unit 94 is preferably a servo motor, and the gripper 96 is preferably a pneumatic gripper structure. During the rope removal operation, the first drive unit 92 drives the movable guide 93 to extend to the position below the wire rope 31 attached to the receiving trolley 7, the second drive unit 94 drives the gripping mechanism to swing upward until the jaws of the gripper 96 face upward, the third drive unit 95 drives the gripper 96 to rise to the neck of the wire rope 31, the gripper 96 closes to grip the wire rope 31, the gripper 96 continues to rise to disengage the wire rope 31 from the attachment position of the receiving trolley 7, the first drive unit 92 drives the movable guide 93 to return to the initial position, and the third drive unit 95 and the second drive unit 94 drive the gripper 96 holding the wire rope 31 to return to the initial position.

[0031] See Figure 3 The mobile platform 6 includes a mobile base 61, a power wheel set 62 at the lower end of the mobile base 61, a mobile track 10 on the mobile base 61, and a horizontal track 63 arranged perpendicular to its transfer direction at the opening section of the transfer track 2. The power wheel set 62 moves on the horizontal track 63 to realize the docking action between the mobile track 10 and the transfer track 2.

[0032] In this embodiment, the transfer method of the transfer system includes the following steps:

[0033] S1. Attaching steel wire rope: The mobile platform 6 is moved by the control system. The receiving trolley 7 carrying the empty calcium carbide pot 8 on the mobile track 10 is connected to the transfer track 2 that needs to receive material. The claws 96 on the hook mechanism 9 automatically clamp the neck of the steel wire rope 31 and drive it to be attached to the head and tail ends of the receiving trolley 7 respectively.

[0034] S2. Receiving and transferring materials: The winch 3 drives the receiving trolley 7 to transfer to the furnace eye of the furnace body 1 to wait for the furnace to be discharged. When the furnace is discharged, the calcium carbide pot 8 on the receiving trolley 7 collects the calcium carbide liquid discharged from the furnace eye. After the furnace is discharged, the winch 3 drives the receiving trolley 7 filled with calcium carbide liquid to transfer through the transfer track 2 to the moving track 10 that facilitates the cooling of calcium carbide liquid.

[0035] S3, Rope Removal and Cooling: The grippers 96 on the drive hook mechanism 9 respectively grip the wire ropes 31 attached to the head and tail ends of the receiving trolley 7. After the grippers 96 are lifted to disengage the wire ropes 31 from the receiving trolley 7, the grippers 96 return to the initial position. The control system controls the moving platform 6 to move horizontally, and the receiving trolley 7 filled with calcium carbide liquid is moved horizontally to the corresponding position for cooling.

[0036] S4, Demolding of calcium carbide: The overhead crane system 5 separates the calcium carbide cooled to a suitable temperature on the moving platform 6 from the calcium carbide pot on the receiving trolley 7 for demolding. When the overhead crane in the above area is in operation or when the area is full of calcium carbide after demolding, the receiving trolley 7 cooled to a suitable temperature can also be hooked to the steel wire rope 31 through the hook mechanism 9 and transferred to the transfer track 2, and the calcium carbide is demolded by the overhead crane system 5 in this area.

[0037] The transfer system and transfer method of this embodiment realize that after the receiving trolley 7 exits the furnace, it is transferred by the mobile platform 6 to the non-dating position for cooling, so as not to affect the normal transfer and receiving of the receiving trolley 7 at the docking position. At the same time, it greatly reduces the workload of the overhead crane system 5, reduces the labor intensity of personnel, improves the automation level of trolley transfer, and improves the overall furnace exit transfer efficiency.

[0038] Example 2

[0039] See Figure 4 In the second embodiment of the present invention, the two sets of symmetrically arranged open transfer tracks 2 are replaced with two sets of parallelly arranged transfer tracks 2 based on the first embodiment. The cooling zone 4 is divided into two partitions. Each set of transfer tracks 2 in the cooling zone 4 is provided with an open section and each partition has only one open section. A moving platform 6 is provided at the open section. Five moving tracks 10 are provided on the moving platform 6. A receiving trolley 7 carrying a calcium carbide pot 8 can be arranged on each moving track 10.

[0040] The transfer method in this embodiment is largely the same as S1 to S3 in the first embodiment. Its five moving tracks 10 make the transfer and cooling flexibility of the system stronger. In the calcium carbide demolding step S4, after the calcium carbide in the receiving trolley 7 on each zone moving platform 6 is cooled to a suitable temperature, it can be directly removed by the overhead crane system 5. The staggered arrangement of the moving platforms 6 can further improve the demolding efficiency and reliability.

[0041] Example 3

[0042] See Figure 5 The difference between the third embodiment of the present invention and the above embodiments is that it includes an open transfer track 2. The cooling zone 4 around the transfer track 2 is divided into two partitions. Each partition of the transfer track 2 is provided with an open section. A moving platform 6 is provided at the open section. Four moving tracks 10 are provided on the moving platform 6. A receiving trolley 7 carrying a calcium carbide pot 8 can be arranged on each moving track 10.

[0043] The transfer method in this embodiment is largely the same as S1 to S3 in the first embodiment. In the calcium carbide demolding step S4, the moving platform 6 of one section horizontally moves the receiving trolley 7 filled with calcium carbide liquid to the corresponding position for cooling. After cooling, the moving track 10 is connected to the transfer track 2 and a steel wire rope 31 is attached. The receiving trolley 7 is then transferred to the moving platform 6 of another section by the winch 3 and the rope is removed. After the rope is removed, the receiving trolley 7 is moved to a suitable position, and the calcium carbide is demolded by the overhead crane system 5. In this embodiment, a moving platform 6 is set in each section of the transfer track 2, which allows for the separate processing of calcium carbide cooling and demolding, further increasing the flexibility of trolley scheduling.

Claims

1. A mobile platform-type calcium carbide tapping and transfer system, comprising a furnace body (1), an open-loop transfer track (2) arranged around the furnace opening of the furnace body (1), and a cooling zone (4) arranged around the transfer track (2) on the side away from the furnace body (1), characterized in that: The transfer track (2) in the cooling zone (4) has an open section, and a moving platform (6) is provided at the open section. The moving platform (6) has at least one more moving track (10) than the transfer track (2). Each moving track (10) can be arranged with a receiving trolley (7) carrying a calcium carbide pot (8). The two ends of the open section of the transfer track (2) are provided with hooking mechanisms (9). Both ends of the transfer track (2) are provided with winches (3). The grippers (96) on the hoist (3) can automatically grip the neck of the wire rope (31) on the hoist (3) and hook or unhook it to the head and tail of the receiving trolley (7). After hooking the wire rope (31), the receiving trolley (7) can run on the transfer track (2) and its corresponding moving track (10). After the receiving trolley (7) filled with calcium carbide liquid is unhooked from the wire rope (31), it can be transferred by the moving platform (6) to the corresponding position for cooling.

2. The mobile platform-type calcium carbide tapping and transfer system according to claim 1, characterized in that: A crane system (5) is installed above the cooling zone (4). The crane system (5) can separate the cooled calcium carbide from the calcium carbide pot (8) on the receiving trolley (7) and demold it.

3. The mobile platform-type calcium carbide tapping and transfer system according to claim 1, characterized in that: The hook mechanism (9) includes a base (91), on which a first drive unit (92) is provided. The drive end of the first drive unit (92) is connected to a movable guide frame (93). The movable guide frame (93) is provided with a second drive unit (94). The swing shaft of the second drive unit (94) is provided with a gripping mechanism. The second drive unit (94) can drive the gripping mechanism to swing up and down. When it swings to the upper position, the gripping mechanism can be perpendicular to the horizontal ground. The gripping mechanism includes a third drive unit (95). The movable end of the third drive unit (95) is provided with a gripper (96). The gripper (96) can grip the neck of the wire rope (31) on the winch (3) and be driven by the third drive unit (95) to achieve lifting and lowering.

4. The mobile platform-type calcium carbide tapping and transfer system according to claim 1, characterized in that: The mobile platform (6) includes a mobile seat (61), a power wheel set (62) at the lower end of the mobile seat (61), a mobile track (10) on the mobile seat (61), and a horizontal track (63) arranged perpendicular to its transfer direction at the opening section of the transfer track (2). The power wheel set (62) moves on the horizontal track (63) to realize the docking action between the mobile track (10) and the transfer track (2).

5. The mobile platform-type calcium carbide tapping and transfer system according to claim 1, characterized in that: The transfer track (2) includes an independent inner transfer track and an outer transfer track, and the furnace body (1) is located in the area between the inner transfer track and the outer transfer track.

6. A mobile platform-type calcium carbide tapping and transfer system according to claim 1, 2, or 5, characterized in that: The cooling zone (4) surrounding the transfer track (2) is divided into two zones, and each zone's transfer track (2) has an open section.

7. A mobile platform-type calcium carbide tapping and transfer system according to claim 1, 2, or 5, characterized in that: It includes two sets of symmetrically arranged transfer tracks (2), and the mobile platform (6) is symmetrically arranged at the opening section of the transfer track (2).

8. A mobile platform-type calcium carbide tapping and transfer system according to claim 1, 2, or 5, characterized in that: It includes two sets of parallel transfer tracks (2), and a cooling zone (4) around the transfer tracks (2) is divided into two partitions. Each set of transfer tracks (2) in the cooling zone (4) has a set of open sections and each partition has only one set of open sections.

9. A mobile platform-type calcium carbide tapping and transfer method, executed by the calcium carbide tapping and transfer system according to any one of claims 1-8, characterized in that, It includes the following steps: S1. Attaching the wire rope: The mobile platform (6) is moved by the control system. The receiving trolley (7) carrying the empty calcium carbide pot (8) on the mobile track (10) is connected to the transfer track (2) that needs to receive the material. The claws (96) on the hook mechanism (9) automatically clamp the neck of the wire rope (31) and drive it to be attached to the head and tail ends of the receiving trolley (7) respectively. S2, receiving and transferring: the winch (3) drives the receiving trolley (7) to transfer to the furnace hole of the furnace body (1) to wait for the furnace to be discharged. When the furnace is discharged, the calcium carbide pot (8) on the receiving trolley (7) is used to collect the calcium carbide liquid discharged from the furnace hole. After the furnace is discharged, the winch (3) drives the receiving trolley (7) filled with calcium carbide liquid to transfer through the transfer track (2) to the moving track (10) which is convenient for cooling the calcium carbide liquid. S3, Rope Removal and Cooling: The grippers (96) on the drive hook mechanism (9) respectively grip the wire ropes (31) attached to the head and tail ends of the receiving trolley (7). After the grippers (96) are lifted to disengage the wire ropes (31) from the receiving trolley (7), the grippers (96) return to the initial position. The control system controls the moving platform (6) to move horizontally and move the receiving trolley (7) filled with calcium carbide liquid to the corresponding position for cooling.

10. A mobile platform-type calcium carbide tapping and transfer method according to claim 9, characterized in that: After step S3, step S4, calcium carbide demolding, is performed: the overhead crane system (5) separates the calcium carbide cooled to a suitable temperature in the moving platform (6) from the calcium carbide pot on the receiving trolley (7) for demolding, or the receiving trolley (7) cooled to a suitable temperature is then attached to a steel wire rope (31) and transported to the transfer track (2) for demolding by the overhead crane system (5), or the receiving trolley (7) cooled to a suitable temperature is attached to a steel wire rope (31) and transported to a suitable position on the moving platform (6) of another section, and then the calcium carbide is demolded by the overhead crane system (5).

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