A ladle conveying track, a ladle slow cooling system and a ladle distribution method
By setting up empty and full pack tracks, combined with slewing switches and slag discharge port switches, unidirectional cyclic conveying of slag packs was achieved, solving the problem of low slag pack transportation efficiency, improving transportation efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA ENFI ENG CORP
- Filing Date
- 2023-05-22
- Publication Date
- 2026-06-26
Smart Images
Figure CN116588612B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of metal smelting technology, and in particular to a slag ladle transport track, a slag ladle slow cooling system, and a slag ladle delivery method. Background Technology
[0002] With the continuous development of metal smelting technology, the rational and full utilization of metal mineral resources and the achievement of high recovery rates in metal smelting have become important aspects of modern smelting technology development. In metal smelting, slow cooling technology can be used to recover valuable metals from smelting residues. In this slow cooling technology, a slag ladle receives the high-temperature molten metal after smelting at the slag discharge port of the smelting furnace. The slag ladle containing the molten metal is then transported to a slow cooling area, where it undergoes air cooling, water cooling, and ladle turning. The empty slag ladle is then transported back to the smelting furnace to continue receiving slag.
[0003] In existing technologies, slag bags can be transported directly from the slag discharge port to the slow cooling area using a gantry crane. However, gantry cranes are heavy, slow, and inefficient. Furthermore, multiple gantry cranes typically operate in the slow cooling area, and if one near the discharge port malfunctions, the transfer of full slag bags cannot be carried out smoothly. Another approach is to use slag bag transfer carts to transport full slag bags to the slow cooling area, followed by air cooling, water cooling, and bag turning operations using gantry cranes. However, these carts are generally imported and expensive, requiring manual driving and operation, making automated slag bag handling in the slow cooling area impossible. Workers also face risks due to working in high-temperature environments. Using a single-track railcar to transport slag bags is also an option. Given the large weight of the slag bags (over 20 tons unloaded and over 65 tons when full), the railcar would need a load capacity of over 80 tons and a speed not exceeding 20 m / min. The track trolley uses a single set of double-track rails. The transport directions of the full slag bags from the smelting furnace and the empty slag bags from the slow cooling field are opposite. To avoid the full and empty slag bags meeting and causing blockages on the double tracks due to simultaneous transport, the full or empty slag bag trolleys need to give way and wait. To ensure that a new slag bag is transported to the second slag discharge port of the smelting furnace before the empty slag bag from one discharge port is filled with slag, the number of track trolleys must be increased to transport more empty slag bags. The increase in the number of track trolleys will lead to increased transportation costs and scheduling difficulties, and reduced slag bag transportation efficiency.
[0004] Therefore, how to efficiently transport slag ladles between the slow cooling zone and the smelting furnace has become a problem to be solved. Summary of the Invention
[0005] In view of this, embodiments of the present invention provide a slag bag transport track, a slag bag slow cooling system, and a slag bag delivery method, mainly to solve the problem of low slag bag transport efficiency caused by waiting when transporting empty and full slag bags on a single transport track.
[0006] On one hand, the present invention provides a slag ladle transport track for connecting a track trolley to transport slag ladles between a smelting furnace and at least one slag ladle cooling zone. The smelting furnace includes a first slag discharge port and a second slag discharge port, comprising:
[0007] Empty package track, full package track, at least one slewing turnout, first slag discharge port turnout and second slag discharge port turnout;
[0008] Empty and full packages are set up side by side at intervals. The slewing turnout is connected to the empty and full packages respectively. The first slag discharge port turnout is connected to the empty and full packages respectively. The second slag discharge port turnout is connected to the empty and full packages respectively.
[0009] The front end of the empty package track and the front end of the full package track are respectively used to extend to the first slag discharge port and the second slag discharge port. The first slag discharge port turnout and the second slag discharge port turnout are closer to the front end of the empty package track and the full package track than the slewing turnout.
[0010] On the other hand, the present invention also provides a slag bag slow cooling system, including the aforementioned slag bag conveying track, and
[0011] The slag bag slow cooling field includes at least one slag bag cooling zone and a gantry crane located above the slag bag cooling zone and movable relative to the slag bag cooling zone.
[0012] The slag bag transport track is located on one side of the slag bag cooling zone.
[0013] Among them, there are multiple slag bag cooling zones, which are arranged in parallel, and both the empty bag track and the full bag track extend in the direction of the slag bag cooling zones.
[0014] The number of slewing switches is the same as the number of slag cooling zones, and the slewing switches and slag cooling zones are set up in a one-to-one correspondence.
[0015] The number of gantry cranes is the same as the number of slag bag cooling zones, and the gantry cranes and slag bag cooling zones are set up in a one-to-one correspondence.
[0016] Among them, the full-package track is closer to the slag bag slow cooling field than the empty-package track;
[0017] The slewing turnout is inclined toward the front end of the empty track in the direction closest to the empty track.
[0018] The first slag discharge port turnout is inclined towards the front end of the empty package track in the direction close to the empty package track, while the second slag discharge port turnout is inclined towards the front end of the empty package track in the direction close to the empty package track.
[0019] The slag bag slow cooling area also includes a slag pool, which is located on different sides of the slag bag transport track.
[0020] The slag bag slow cooling area also includes a spare slag bag area, which is set up in parallel with the slag bag cooling area.
[0021] Furthermore, the present invention also provides a method for delivering waste packages, comprising:
[0022] When a railcart stops in the slag bag cooling zone, it is determined whether there is a full slag bag on the railcart of the full slag bag track. If there is no full slag bag, the gantry crane moves the empty slag bag from the slag bag cooling zone to the railcart. If there is a full slag bag, the gantry crane moves the full slag bag of the railcart to the slag bag cooling zone, and moves the empty slag bag from the slag bag cooling zone to the railcart.
[0023] The rail trolley moves the empty slag bag to the empty bag track via the full bag track and the slewing switch;
[0024] Obtain the status of the slag bags at the first and second slag discharge ports.
[0025] When there is no slag bag at the first slag discharge port, the empty slag bag is moved to the first slag discharge port through the empty bag track to receive slag. When the empty slag bag becomes a full slag bag, the full slag bag is moved to the full bag track through the second slag discharge port switch, and then moved to the slag bag cooling area.
[0026] When there is a slag bag at the first slag discharge port and no slag bag at the second slag discharge port, the empty slag bag is moved to the full bag track through the slag discharge port switch, and then moved to the second slag discharge port to receive slag. When the empty slag bag becomes a full slag bag, the full slag bag is moved to the slag bag cooling area.
[0027] When there are slag bags at both the first and second slag discharge ports, the empty slag bags are stopped on the empty bag track and waited until there are no slag bags at either the first or second slag discharge port.
[0028] The slag bag cooling zone includes multiple slag bag positions, which are arranged in an array. The slag bag positions are used to place slag bags.
[0029] The steps for the gantry crane to move the empty slag bag from the slag bag cooling zone to the track trolley are as follows:
[0030] Select the current location of the slag bag to be picked up, and determine whether the slag bag at the current location is empty. If it is not empty, pick up the slag bag, move it to the slag pit to dump the slag bag, and move the slag bag to the track trolley; if it is empty, move it directly to the track trolley.
[0031] The gantry crane includes a gantry trolley and a crane trolley. The gantry trolley is mounted in the slag bag cooling area and is used to move upward in the row of the slag bag. The crane trolley is connected to the gantry trolley and is used to move upward in the column of the slag bag.
[0032] The steps for selecting the current location of the slag packet to be picked up are as follows:
[0033] The gantry crane picks up the slag bags in the current column one by one according to the preset column direction. After the slag bags in the current column are picked up, the gantry crane picks up the slag bags in the next column adjacent to the current column in the preset row direction in the opposite direction of the preset column direction.
[0034] This invention proposes a slag bag transport track, a slag bag slow cooling system, and a slag bag delivery method. It primarily utilizes empty and full slag bag tracks connected by a rotary switch and a slag discharge port switch. This enables unidirectional cyclic transport of both empty and full slag bags, eliminating the need for yielding or waiting, thus achieving rapid slag bag circulation and improving transport efficiency. In existing technologies, the track trolleys use a dual-track system, with full slag bags from the smelting furnace and empty slag bags from the slow cooling area transported in opposite directions. To prevent simultaneous transport and potential blockages caused by encounters between full and empty slag bags on the dual tracks, either full or empty slag bag trolleys must yield and wait. This necessitates increasing the number of track trolleys to transport more empty slag bags at once to ensure timely supply to the smelting furnace. However, increasing the number of track trolleys leads to higher transport costs, increased scheduling difficulty, and reduced slag bag transport efficiency. Compared with existing technologies, this application uses a dual-track setup of empty and full slag bags. Through a rotary switch and a slag discharge switch, the trolleys carrying full and empty slag bags can circulate unidirectionally on the dual tracks, ensuring that the trolleys do not travel towards each other. This avoids the need to wait for the tracks to be emptied during the transport of full and empty slag bags, improving transport efficiency, accelerating slag bag turnover time, and reducing the number of trolleys required. Furthermore, multiple slag bag cooling zones are set up opposite the rotary switch, with each cooling zone having its own independent circulation track. Multiple cooling zones can operate in parallel, increasing operational efficiency and system reliability. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the slag bag slow cooling system provided in an embodiment of the present invention;
[0036] Figure 2 A schematic diagram of the principle of the slag bag transport track provided in an embodiment of the present invention;
[0037] Figure 3 A flowchart of a waste package delivery method provided in an embodiment of the present invention;
[0038] Figure 4 This is a schematic diagram illustrating the selection order of the current slag bag position in the slag bag delivery method provided in this embodiment of the invention. Detailed Implementation
[0039] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes the specific implementation, structure, features, and effects of the distributed emergency oil containment system for hydropower station drainage facilities proposed according to the present invention.
[0040] like Figure 1-2 As shown, this embodiment of the invention provides a slag ladle transport track for connecting a track trolley to transport slag ladles between a smelting furnace and a slag ladle slow cooling area. The smelting furnace includes a first slag discharge port and a second slag discharge port, comprising:
[0041] Empty package track (110), full package track (120), at least one slewing turnout (130), first slag discharge port turnout (141), and second slag discharge port turnout (142);
[0042] Empty package track (110) and full package track (120) are arranged side by side at intervals. A slewing turnout (130) is connected to the empty package track (110) and the full package track (120) respectively. The first slag discharge port turnout (141) is connected to the empty package track (110) and the full package track (120) respectively. The second slag discharge port turnout (142) is connected to the empty package track (110) and the full package track (120) respectively.
[0043] The front end of the empty package track (110) and the front end of the full package track (120) are respectively used to extend to the first slag discharge port and the second slag discharge port. The first slag discharge port turnout (141) and the second slag discharge port turnout (142) are closer to the front end of the empty package track (110) and the full package track (120) than the slewing turnout (130).
[0044] The smelting furnace has two slag discharge ports, a first slag discharge port and a second slag discharge port, and is equipped with a bidirectional chute. Once the smelting furnace starts discharging slag, it cannot stop, and there must be a slag bag at either the first or second slag discharge port to receive slag. Before the slag bag corresponding to the first slag discharge port is full, the slag bag corresponding to the second slag discharge port needs to wait at the second slag discharge port to ensure that the smelting furnace can continuously discharge slag through the chute via either the first or second slag discharge port. The time to fill an empty slag bag at a slag discharge port is generally about 15 minutes, and this time is defined as the period T. Within the period T, the rail trolley is required to send the full slag bag to the slag bag cooling zone and then return to the slag discharge port with an empty slag bag. This requires the rail trolley to be able to return quickly within the period T. This application sets a unidirectional circulating track for each slag bag cooling zone (200), which can avoid the problem of congestion on the single track, increase the speed of the rail trolley, and ensure that within the period T, after the full slag bag at the slag discharge port is sent away by the rail trolley, an empty slag bag immediately comes to fill the position. Meanwhile, this application sets at least one slag cooling zone and at least one rotary turnout (130). The slag cooling zone and the rotary turnout (130) correspond one-to-one. The slag in each slag cooling zone can achieve independent circulation in each slag cooling zone and return to the slag discharge port along the circulation track of its respective rotary turnout (130) component.
[0045] The track trolley is connected to the host computer. The specific form of the track trolley is not limited in this application. The purpose is to enable it to move along the slag bag transport track under the control of the host computer. For example, it can be a rail guide vehicle (RGV). The coordination between the track trolley and the track is a mature technology, which will not be elaborated in this application.
[0046] The empty bag track (110) and the full bag track (120) can be set parallel to each other. Both the empty bag track (110) and the full bag track (120) are straight tracks. The slewing turnout (130), the first slag discharge port turnout (141), and the second slag discharge port turnout (142) are set at an angle relative to the empty bag track (110) and the full bag track (120). The specific direction of the angle will be described in detail below in conjunction with the location of the slag bag cooling zone, in order to facilitate the movement of the track trolley and minimize the travel distance of the track trolley when carrying a full slag bag. Figure 1-2The middle arrow indicates the transport direction of the trolley or slag bag on the slag bag transport track. The transport directions on the empty bag track (110), the full bag track (120), the slewing switch (130), the first slag discharge port switch (141), and the second slag discharge port switch (142) are all unidirectional, so there will be no congestion caused by transporting in opposite directions or situations requiring avoidance. More specifically, when one of the slag bags corresponding to the first or second slag discharge port is filled to become a full slag bag, the trolley moves the full slag bag to the full bag track (120). Since the first slag discharge port corresponds to the empty bag track (110), the trolley moves the full slag bag to the full bag track (120) through the second slag discharge port switch (142). That is, the movement direction of the trolley on the second slag discharge port switch (142) is from the empty bag track (110) to the full bag track (120). After the railcart enters the full slag pack track (120), it moves away from the front end of the full slag pack track (120) to the slag pack cooling zone. In the slag pack cooling zone, the full slag pack is replaced with an empty slag pack. Then, it continues to move away from the front end of the full slag pack track (120) to the rotary switch (130). That is, the railcart on the full slag pack track (120) moves away from the front end of the full slag pack track (120). The railcart then carries the empty slag pack through the rotary switch (130) to the empty slag pack track (110). That is, the railcart on the rotary switch (130) moves from the full slag pack track (120) to the empty slag pack track (110). After the railcart enters the empty slag pack track (110), it moves towards the front end of the empty slag pack track (110) to the first slag discharge port switch (141). That is, the railcart on the empty slag pack track (110) moves towards the front end of the empty slag pack track (110). When there are no empty bags at the first discharge port, the railcar directly delivers the empty bag to the first discharge port. When there are no empty bags at the second discharge port, the railcar moves the empty bag through the first discharge port switch (141) to the full bag track (120) and then delivers it to the second discharge port. That is, the direction of movement of the railcar on the first discharge port switch (141) is from the empty bag track (110) to the full bag track (120). As can be seen from the above, the movement of the railcar on the track is unidirectional, and there will be no problem of needing to avoid or wait due to bidirectional travel. It is worth noting that although the sections of the full-bag track (120) between the first slag discharge port turnout (141) and the front end, and the empty-bag track (110) between the second slag discharge port turnout (142) and the front end involve the bidirectional movement of the track trolley, the track trolley carrying the empty slag bag can be set to wait on the empty-bag track (110) near the first slag discharge port turnout (141), which does not affect the movement of the track trolley carrying the full slag bag. When the track trolley carrying the full slag bag moves out of the bidirectional movement section, the track trolley can quickly deliver the waiting empty slag bag to the first or second slag discharge port, greatly increasing the supply speed of the empty slag bag, and does not have any impact on the transportation of the full slag bag.
[0047] This invention proposes a slag ladle transport track, which mainly uses empty ladle tracks and full ladle tracks connected by a rotary switch and a slag discharge port switch. This allows for unidirectional cyclic transport of both empty and full slag ladles without the need for yielding or waiting, enabling rapid circulation and improving transport efficiency. In existing technologies, the track trolleys use a single track. Full slag ladles transported from the smelting furnace and empty slag ladles transported from the slow cooling area travel in opposite directions. To avoid congestion caused by simultaneous transport of full and empty slag ladles on the single track, either full or empty ladle trolleys must yield and wait. This necessitates increasing the number of track trolleys to transport more empty slag ladles at once to ensure timely supply to the smelting furnace. However, increasing the number of track trolleys leads to higher transport costs and increased scheduling difficulty, ultimately reducing slag ladle transport efficiency. Compared with existing technologies, this application uses a dual-track setup of empty and full slag bags. Through a rotary switch and a slag discharge switch, the trolley carrying the full slag bag and the trolley carrying the empty slag bag can circulate in one direction on the dual tracks. This ensures that the trolleys do not travel towards each other, avoids waiting for the tracks to be emptied during the transportation of full and empty slag bags, improves transportation efficiency, speeds up slag bag turnover time, and reduces the number of trolleys required.
[0048] On the other hand, the present invention also provides a slag bag slow cooling system, including the aforementioned slag bag conveying track (100), and
[0049] The slag bag slow cooling field includes at least one slag bag cooling zone (200) and a gantry crane (300) located above the slag bag cooling zone (200) and movable relative to the slag bag cooling zone (200);
[0050] The slag bag transport track (100) is located on one side of the slag bag cooling zone (200).
[0051] The empty bag track (110) and the full bag track (120) can be laid on the bottom surface and set on one side of the slag bag cooling zone (200), with either the empty bag track (110) or the full bag track (120) closer to the slag bag cooling zone (200). Alternatively, in some embodiments, they can be erected above the slag bag cooling zone (200), depending on the actual site conditions. For ease of explanation, in the following embodiments, the empty bag track (110) and the full bag track (120) are set on one side of the slag bag cooling zone, with the full bag track (120) closer to the slag bag slow cooling area. The gantry crane (300) can also be called a gantry crane, gantry machine, etc., and is used for picking up slag bags, placing slag bags, and tipping and dumping slag bags. It is a mature mechanical device in the prior art, and this application does not limit its structure. At least the full bag track (120) is located below the gantry crane (300), so that the main hook of the gantry crane (300) can lift the full bag of slag on the track trolley on the full bag track (120) and place the empty bag of slag on the empty track trolley.
[0052] In one embodiment, there are multiple slag bag cooling zones (200), arranged side by side. Empty bag tracks (110) and full bag tracks (120) both extend in the direction in which the slag bag cooling zones (200) are arranged. The number of slewing switches (130) is the same as the number of slag bag cooling zones (200), and each slewing switch (130) corresponds to one slag bag cooling zone (200). The number of gantry cranes (300) is the same as the number of slag bag cooling zones (200), and each gantry crane (300) corresponds to one slag bag cooling zone (200).
[0053] When there are a large number of slag bags, multiple slag bag cooling zones (200) can be set up, and each slag bag cooling zone (200) can be equipped with a gantry crane (300). Multiple slag bag cooling zones (200) can work in parallel with the gantry cranes (300) in different areas, which can improve work efficiency. A turnout (130) is set up for each slag bag cooling zone (200). The turnout (130) corresponding to the slag bag cooling zone (200) can be selected to transport empty slag bags to the empty bag track (110), so that the slag bags can circulate independently in the slag bag cooling zone (200), which greatly reduces the distance of empty slag bag transportation and the movement distance of the track trolley, thereby making the empty slag bag transportation speed faster and the energy consumption of the track trolley lower. In this application, there are three slag cooling zones (200). Each slag cooling zone (200) corresponds to a turnout (130) or a circular sub-track composed of turnouts (130), so that the slag in any slag cooling zone (200) can achieve independent circulation in that slag cooling zone (200).
[0054] In one embodiment, the slewing turnout (130) is inclined toward the front end of the empty track (110) in the direction close to the empty track (110).
[0055] By making the connection point between the slewing turnout (130) and the empty package track (110) closer to the front end of the empty package track (110), the rail trolley will be closer to the front end of the empty package track (110) after it moves to the empty package track (110), thereby shortening the total path of the rail trolley on the slewing turnout (130) and the empty package track (110), thereby achieving a faster empty slag bag transportation speed and lower energy consumption of the rail trolley.
[0056] Furthermore, the first slag discharge port turnout (141) is inclined towards the front end of the empty package track (110) in the direction close to the empty package track (110), and the second slag discharge port turnout (142) is inclined towards the front end of the empty package track (110) in the direction close to the empty package track (110).
[0057] The first slag discharge port turnout (141) and the second slag discharge port turnout (142) are both inclined in the direction of the rail trolley's movement, which makes the movement of the rail trolley smoother and shortens the distance the rail trolley travels. The first slag discharge port turnout (141) and the second slag discharge port turnout (142) can be set at opposite ends or at a certain distance, depending on the actual needs of the site.
[0058] In one embodiment, the slag bag slow cooling field further includes a slag pool (400), which is located on different sides of the slag bag cooling zone (100) along with the slag bag transport track (300). The slag pool (400) is used to empty a full slag bag, which then becomes an empty slag bag.
[0059] In one embodiment, the slag bag slow cooling field further includes a backup slag bag area (500), which is arranged in parallel with the slag bag cooling area (200). If any of the slag bag cooling areas (200), or any of the three slag bag cooling areas (200), fails, the backup slag bag area (500) can be activated to take its place.
[0060] On the other hand, such as Figure 3 As shown, the present invention also provides a method for delivering waste packages, comprising:
[0061] S1. When a railcart stops in the slag bag cooling zone (200), determine whether there is a full slag bag on the railcart of the full bag rail (120). When there is no full slag bag, the gantry crane (300) moves the empty slag bag from the slag bag cooling zone (200) to the railcart. When there is a full slag bag, the gantry crane (300) moves the full slag bag of the railcart to the slag bag cooling zone (200) and moves the empty slag bag from the slag bag cooling zone (200) to the railcart.
[0062] At the initial stage of slag discharge, the empty railcar is moved to one of the three slag bag cooling zones (200), meaning there are no full slag bags on the railcar. The empty slag bags in the slag bag cooling zone (200) are placed directly onto the railcar via the gantry crane (300). After slag is discharged from the smelting furnace, the railcar will carry full slag bags to the slag bag cooling zone (200). The gantry crane (300) will first place the full slag bags at the empty slag bag positions in the slag bag cooling zone (200), and then place the empty slag bags in the slag bag cooling zone (200) onto the railcar. More specifically, at the initial stage of slag removal, the first railcar is moved to the position corresponding to the full ladle track (120) and the slag ladle cooling zone (200). The gantry crane (300) of the slag ladle cooling zone (200) moves the empty slag ladle in the slag ladle cooling zone (200) onto the railcar. The first railcar, carrying the empty slag ladle, moves from the full ladle track (120) towards the rotary switch (130) corresponding to the slag ladle cooling zone (200) which is away from the smelting furnace. Then, the second railcar is moved to the position corresponding to the full ladle track (120) and the slag ladle cooling zone (200). The gantry crane (300) of the slag ladle cooling zone (200) moves the empty slag ladle in the slag ladle cooling zone (200) onto the railcar. The second railcar, carrying the empty slag ladle, moves from the full ladle track (120) towards the rotary switch (130) corresponding to the slag ladle cooling zone (200) which is away from the smelting furnace. Then, the third track trolley is moved to the position corresponding to the full ladle track (120) and the slag ladle cooling zone (200), which will not be described in detail here. This application uses three track trolleys as an example, but the number of track trolleys can also be four, five, etc. After the smelting furnace discharges slag through the slag discharge port, the first track trolley, the second track trolley, and the third track trolley will cycle back to the full ladle track (120).
[0063] S2. The rail trolley moves the empty slag bag to the empty bag track (110) via the full bag track (120) and the slewing turnout (130).
[0064] After the empty slag bag is placed on the track trolley, the track trolley moves on the full bag track (120) to the turnout (130) corresponding to the cooling zone of the slag bag, and moves through the turnout (130) to the empty bag track (110), and then moves towards the smelting furnace on the empty bag track (110) until it reaches the first slag discharge port turnout (141).
[0065] S3. Obtain the status of the slag bags at the first and second slag discharge ports.
[0066] When there is no slag bag at the first slag discharge port, the empty slag bag is moved to the first slag discharge port for slag collection via the empty bag track (110). When the empty slag bag becomes a full slag bag, the full slag bag is moved to the full bag track (120) via the second slag discharge port turnout (142) and then moved to the slag bag cooling area (200).
[0067] When there is a slag bag at the first slag discharge port and no slag bag at the second slag discharge port, the empty slag bag is moved to the full bag track (120) through the slag discharge port switch, and then moved to the second slag discharge port to receive slag. When the empty slag bag becomes a full slag bag, the full slag bag is moved to the slag bag cooling area (200).
[0068] In the initial stage, since there are no slag bags at either the first or second slag discharge port, and the empty bag track (110) corresponds to the first slag discharge port, the first empty slag bag is directly transported to the first slag discharge port via the empty bag track (110) to wait for slag to be received. The second empty slag bag is moved to the first slag discharge port switch (141). Since there are slag bags at the first slag discharge port but no slag bags at the second slag discharge port, and the empty bag track (110) corresponds to the first slag discharge port, the second empty slag bag is transported to the full bag track (120) via the first slag discharge port switch (141), and then transported to the second slag discharge port to wait for slag to be received. The first slag discharge port discharges slag first, and the slag bag corresponding to the first slag discharge port will become a full slag bag. Then, the rail trolley will transport the full slag bag corresponding to the first slag discharge port to the second slag discharge port turnout (142) through the empty bag track (110), and then transport it to the full bag track (120) through the second slag discharge port turnout (142), and transport it to the corresponding position in the slag bag cooling area (200). Then, in step S1, when there is a full slag bag, the gantry crane (300) moves the full slag bag of the rail trolley to the slag bag cooling zone (200), and moves the empty slag bag from the slag bag cooling zone (200) to the rail trolley. The full slag bag will be air-cooled and water-cooled in the slag bag cooling zone (200) in sequence. When the temperature drops below the preset temperature, it becomes a bag-turning zone. The gantry crane can directly select an empty slag bag or dump the full slag bag in the bag-turning zone and place it on the rail trolley as an empty slag bag. This realizes the cycle operation of a slag bag going through full slag bag -> cooling -> dumping slag -> empty slag bag -> receiving slag -> full slag bag. After the full slag bag corresponding to the first slag discharge port is transported away, there will be no slag bag at the first slag discharge port. When a new empty slag bag arrives at the first slag discharge port switch (141), since there is no slag bag at the first slag discharge port, but there is a slag bag at the second slag discharge port, and the empty bag track (110) corresponds to the first slag discharge port, the new empty slag bag will be directly transported to the first slag discharge port to wait for slag to be received. The slag bag corresponding to the first slag discharge port will first become a full slag bag, and then switch to the second slag discharge port for slag discharge. When the slag bag corresponding to the second slag discharge port becomes a full slag bag, the rail trolley will then transport the full slag bag corresponding to the second slag discharge port directly to the corresponding position in the slag bag cooling area (200) via the full bag track (120). Then, step S1 is executed. When there is a full slag bag, the gantry crane (300) moves the full slag bag of the rail trolley to the slag bag cooling area (200), and the empty slag bag is moved from the slag bag cooling area (200) to the rail trolley to realize the cycle.
[0069] When there are slag bags at both the first and second slag discharge ports, the empty slag bags are stopped on the empty bag track (110) and waited until there are no slag bags at either the first or second slag discharge port.
[0070] When the track trolley runs fast, or the slag discharge from the smelting furnace slows down, the slag bags at the first and second slag discharge ports may not be fully loaded and transported away. In this case, new empty slag bags can wait at the switch (141) closest to the first slag discharge port on the empty bag track (110). When the slag bag at either the first or second slag discharge port is fully loaded and transported away, it can be quickly replenished.
[0071] More specifically, the slag bag cooling zone (200) includes multiple slag bag positions, which are arranged in an array and used to place slag bags. In step S1, the gantry crane (300) moves an empty slag bag from the slag bag cooling zone (200) to the track trolley. Specifically, the gantry crane (300) selects the current slag bag position to be picked up, determines whether the slag bag at the current slag bag position is empty, and if it is not empty, picks up the slag bag, moves it to the slag pool to dump the slag bag, and moves the slag bag to the track trolley; if it is empty, it moves it directly to the track trolley.
[0072] The slag bags currently in the slag bag position may be empty. For example, in the initial stage, all the slag bags discharged in the slag bag cooling zone are empty slag bags. First, the empty slag bags are moved to the rail trolley in sequence, and then the full slag bags transported by the rail trolley are placed in the empty slag bag position. When all the empty slag bags are used up, the gantry crane (300) moves the full slag bags after air cooling and water cooling to the slag pool located on one side of the slag bag cooling zone (200), pours the cooled metal in the slag bag into the slag pool, and then places the empty slag bags after pouring into the rail trolley.
[0073] The gantry crane (300) includes a gantry trolley and a crane trolley. The gantry trolley is mounted in the slag bag cooling zone (200) and is used to move upwards in the row of slag bags. The crane trolley is connected to the gantry trolley and is used to move upwards in the column of slag bags. The slag bag weighs tens of tons, and the gantry crane (300) itself typically weighs tens of tons. The total weight of the slag bag after being lifted by the gantry crane (300) is nearly 100 tons. To improve the operating efficiency of the gantry crane (300), the operating speed of the crane trolley should be made as high as possible than that of the gantry trolley. Therefore, it is set up in three independent slag bag cooling zones (200). In each zone, the gantry crane (300) lifts empty slag bags in a longitudinally arranged, head-to-head sequence to reduce the travel time of the gantry trolley and thus improve the operating efficiency of the gantry crane (300).
[0074] More specifically, the current location of the slag packet to be picked up needs to be selected according to a preset order, such as... Figure 4As shown in the figure, the direction indicated by the arrow is the selection order of the current slag bag position. Specifically, the gantry crane (300) picks up the slag bags in the current column of slag bags one by one according to the preset column direction. After the slag bags in the current column of slag bags are picked up, the gantry crane (300) picks up the slag bags in the next column of slag bags adjacent to the current column of slag bags in the preset row direction in the opposite direction of the preset column direction.
[0075] The preset column direction is perpendicular to and opposite to the full-coverage track (120), that is... Figure 4 Pick up the first slag bag from bottom to top in the direction of the leftmost upward arrow. The default row direction is towards the front of the full bag track (120), that is... Figure 4 The direction of the arrow between two adjacent columns of slag bags indicates that the second column of slag bags adjacent to the first column of slag bags in the preset row direction is the second column of slag bags on the left. The gantry crane (300) picks up the second column of slag bags in the opposite direction of the preset column direction, i.e. Figure 4 Pick up the second column of slag bags from top to bottom, following the direction of the middle arrow. Repeat this process, picking up empty slag bags in the order of vertical arrangement and consecutive first and last bags.
[0076] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A slag ladle transport track for connecting a track trolley to transport slag ladles between a smelting furnace and a slag ladle slow cooling area, said smelting furnace comprising a first slag discharge port and a second slag discharge port, characterized in that, The slag bag transport track includes: Empty package track, full package track, at least one slewing turnout, first slag discharge port turnout and second slag discharge port turnout; The empty package track and the full package track are arranged side by side at intervals. The slewing turnout is connected to the empty package track and the full package track respectively. The first slag discharge port turnout is connected to the empty package track and the full package track respectively. The second slag discharge port turnout is connected to the empty package track and the full package track respectively. The front end of the empty package track and the front end of the full package track are respectively used to extend to the first slag discharge port and the second slag discharge port. The first slag discharge port turnout and the second slag discharge port turnout are closer to the front end of the empty package track and the full package track than the slewing turnout.
2. A slag bag slow cooling system, characterized in that, Including the slag bag transport track as described in claim 1, and The slag bag slow cooling field includes at least one slag bag cooling zone and a gantry crane located above the slag bag cooling zone and movable relative to the slag bag cooling zone. The slag bag transport track is located on one side of the slag bag cooling zone.
3. The slag bag slow cooling system according to claim 2, characterized in that, There are multiple slag bag cooling zones, which are arranged side by side. The empty bag track and the full bag track both extend in the direction in which the slag bag cooling zones are arranged. The number of the rotary switches is the same as the number of the slag bag cooling zones, and the rotary switches and the slag bag cooling zones are set in a one-to-one correspondence. The number of gantry cranes is the same as the number of slag bag cooling zones, and the gantry cranes and the slag bag cooling zones are set up in a one-to-one correspondence.
4. The slag bag slow cooling system according to claim 3, characterized in that, The full-bag track is closer to the slag bag slow cooling field than the empty-bag track; The slewing turnout is inclined toward the front end of the empty package track in the direction close to the empty package track.
5. The slag bag slow cooling system according to claim 2, characterized in that, The first slag discharge port turnout is inclined towards the front end of the empty package track in the direction close to the empty package track, and the second slag discharge port turnout is inclined towards the front end of the empty package track in the direction close to the empty package track.
6. The slag bag slow cooling system according to claim 2, characterized in that, The slag bag slow cooling zone also includes a slag pool, which is located on different sides of the slag bag transport track.
7. A slag bag slow cooling system according to claim 2, characterized in that, The slag bag slow cooling field also includes a spare slag bag area, which is arranged in parallel with the slag bag cooling area.
8. A method for delivering waste packages, characterized in that, include: When a track trolley stops in the slag bag cooling zone, it is determined whether there is a full slag bag on the track trolley. If there is no full slag bag, the gantry crane moves the empty slag bag from the slag bag cooling zone to the track trolley. If there is a full slag bag, the gantry crane moves the full slag bag on the track trolley to the slag bag cooling zone, and moves the empty slag bag from the slag bag cooling zone to the track trolley. The track trolley moves the empty slag bag to the empty bag track via the full bag track and the slewing turnout; Obtain the status of the slag bags at the first and second slag discharge ports. When there is no slag bag at the first slag discharge port, the empty slag bag is moved to the first slag discharge port through the empty bag track to receive slag. When the empty slag bag becomes a full slag bag, the full slag bag is moved to the full bag track through the second slag discharge port switch, and then moved to the slag bag cooling area. When there is a slag bag at the first slag discharge port and no slag bag at the second slag discharge port, the empty slag bag is moved to the full bag track through the slag discharge port switch, and then moved to the second slag discharge port to receive slag. When the empty slag bag becomes a full slag bag, the full slag bag is moved to the slag bag cooling area. When there are slag bags at both the first and second slag discharge ports, the empty slag bag is stopped on the empty bag track and waits until there are no slag bags at either the first or second slag discharge port.
9. A method for delivering slag packages according to claim 8, characterized in that, The slag bag cooling zone includes multiple slag bag positions, which are arranged in an array and used to place slag bags. The step of the gantry crane moving the empty slag bag from the slag bag cooling zone to the track trolley is specifically as follows: Select the current position of the slag bag to be picked up, determine whether the slag bag at the current position is empty, if it is not empty, pick up the slag bag, move it to the slag pool to dump the slag bag, and move the slag bag to the track trolley; If it is an empty slag bag, it is moved directly to the track trolley.
10. A method for delivering slag packages according to claim 9, characterized in that, The gantry crane includes a gantry trolley and a crane trolley. The gantry trolley is mounted on the slag bag cooling zone and is used to move upward in the row of the slag bag position. The crane trolley is connected to the gantry trolley and is used to move upward in the column of the slag bag position. The step of selecting the current location of the slag bag to be picked up is as follows: The gantry crane picks up the slag bags one by one in the current column of the slag bag position according to the preset column direction. After the slag bags in the current column of the slag bag position are picked up, the gantry crane picks up the slag bags in the next column of the slag bag position that is adjacent to the current column of the slag bag position in the preset row direction in the opposite direction of the preset column direction.