A slag transfer device and slag transfer system

By designing a slag transfer device, the automatic opening and closing of the bottom cover is achieved by using forklifts and lifting equipment, which solves the problems of easy damage to woven bags and slag spillage, improves the reliability and convenience of transfer, and reduces environmental risks and costs.

CN224362503UActive Publication Date: 2026-06-16SHENZHEN ZHONGJIN LINGNAN NONFEMET COMPANY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZHONGJIN LINGNAN NONFEMET COMPANY
Filing Date
2025-06-11
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

When hydrometallurgical enterprises use woven bags to transport slag, there are problems such as easy damage to the woven bags, slag spillage, high environmental risks, large labor requirements, and difficulty in disposing of the woven bags, which increase enterprise costs and environmental pollution.

Method used

A slag transfer device was designed, including a cage and a bottom cover. It uses a forklift and lifting equipment to cooperate. The bottom cover is sealed by the forklift fork arm. When the lifting equipment lifts it, the bottom cover opens by its own weight, realizing the automatic dumping of slag and avoiding the use of woven bags.

Benefits of technology

It improves the reliability and ease of operation of slag transportation, reduces the use of woven bags, lowers environmental risks and labor requirements, simplifies the operation process, and enhances environmental friendliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a slag transfer device and a slag transfer system. The slag transfer device comprises a cage and a bottom cover. The cage is used for loading slag. The bottom of the cage is provided with a first opening. The bottom cover is rotationally connected to the cage. The bottom cover can close the first opening when a supporting force is applied. The bottom cover can open the first opening under the action of gravity when the supporting force is removed, so that the slag can be poured out from the first opening. The slag transfer device and the slag transfer system can avoid using a woven bag to transfer the slag, avoid spilling of the slag, and improve the reliability and operation convenience of the slag transfer.
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Description

Technical Field

[0001] This application relates to the field of metallurgical technology, and in particular to a slag transfer device and slag transfer system. Background Technology

[0002] Hydrometallurgical enterprises use large-capacity woven bags as containers for slag transfer. The consumption of woven bags is huge. The overall strength of woven bags is limited and they are easily affected by external factors, resulting in frequent slag spillage. In addition, the harmless treatment of a large number of waste woven bags and the procurement costs are also a series of prominent problems faced by enterprises.

[0003] Hydrometallurgical enterprises use large-capacity woven bags as slag transfer containers. However, the woven bags themselves have limited strength, and their stability is easily affected by friction and impacts during transfer, leading to broken lifting lugs and damage to the bags themselves. This can also cause hazardous waste to spill during transfer, increasing environmental risks and unnecessary investment. Furthermore, dumping requires additional personnel, adding to the labor force. Moreover, after recycling, the woven bags need to be cleaned, crushed, granulated, and thermoplasticized for reuse. This process not only causes environmental pollution and makes hazardous waste disposal difficult but also hinders effective cost control for enterprises. In today's fiercely competitive market, it is crucial for enterprises to minimize costs, increase efficiency, and achieve a green circular economy. Utility Model Content

[0004] To solve at least one of the above-mentioned technical problems, this application provides a slag transfer device and a slag transfer system, which can avoid the use of woven bags for slag transfer, prevent slag spillage, and improve the reliability and ease of operation of slag transfer. The technical solution adopted is as follows.

[0005] The slag transfer device provided in the first aspect of this application includes a cage and a bottom cover. The cage is used to load slag, and the bottom of the cage is provided with a first opening. The bottom cover is rotatably connected to the cage. The bottom cover can be sealed when subjected to a supporting force, and the bottom cover can be opened under its own weight when the supporting force is removed so that the slag can be poured out from the first opening.

[0006] In some embodiments of this application, the cage is provided with a first lifting structure for connecting to a lifting device to lift the cage. The bottom cover is provided with a second lifting structure for inserting the forks of a forklift to lift the slag transfer device. When the forks are inserted into the second lifting structure, the bottom cover closes the first opening, and the cage can be used to load slag. When the lifting device lifts the first lifting structure, the bottom cover flips under its own weight to open the first opening, and the slag is poured out of the cage.

[0007] In some embodiments of this application, the cage includes four side rails connected in sequence, wherein two of the side rails arranged opposite each other are first side rails, and the other two side rails are second side rails. The first side rails protrude from the second side rails along the height direction, and the protruding portion of the first side rails forms the first lifting structure.

[0008] In some embodiments of this application, the first side rail includes a main body, two first connecting rods and a second connecting rod. The two first connecting rods are vertically arranged and their tops protrude from the main body along the height direction. The two ends of the second connecting rod are respectively connected to the tops of the two first connecting rods. The second connecting rod is spaced apart from the main body, and the gap between the second connecting rod and the main body constitutes the first lifting structure.

[0009] In some embodiments of this application, the bottom surface of the bottom cover is provided with a support channel steel, and the groove inside the support channel steel is formed as the second lifting structure. The groove inside the support channel steel is used for the insertion of the fork arm of the forklift.

[0010] In some embodiments of this application, two first side rails are spaced apart along a first direction, two second side rails are spaced apart along a second direction, the lifting equipment includes a forklift, the forklift's fork arm can be inserted into the first lifting structure along the first direction; two supporting channel steels are provided, the supporting channel steels extend along the first direction, the two supporting channel steels are spaced apart along the second direction, and the fork arm can be inserted into the second lifting structure along the first direction.

[0011] In some embodiments of this application, the bottom of the cage is further provided with a rotating connector, and the bottom cover is rotatably connected to the rotating connector.

[0012] In some embodiments of this application, the rotating connector includes a rotating hinge disposed at the bottom of one of the side rails of the cage, and one edge of the bottom cover is rotatably connected to the rotating hinge.

[0013] In some embodiments of this application, the cage is formed by a plurality of side rails connected in sequence, each side rail is provided with a plurality of reinforcing ribs, the top of the cage is open, and the top of the cage is used to load slag.

[0014] Secondly, this application provides a slag transfer system, including a lifting device and a slag transfer device according to the first aspect. The lifting device is used to lift the cage and also to support the bottom cover so that the bottom cover closes the first opening.

[0015] The embodiments of this application have at least the following beneficial effects: During the transfer process, the forklift arm can be used to lift the entire slag transfer device. At this time, the forklift arm provides support for the bottom cover, so the bottom cover can still maintain a closed function for the first opening during the transfer process. When dumping slag, the cage is lifted using lifting equipment (such as an electric hoist, gantry crane hook, forklift arm, etc.). At this time, the support force of the bottom cover disappears, and the bottom cover rotates relative to the cage under its own weight, thereby opening the first opening. The slag is automatically dumped out from the first opening under the action of gravity, thereby realizing the collection, transfer, and dumping of slag. Using the slag transfer device provided by this application, on the one hand, it can avoid using woven bags to load slag, thereby solving the problems of large consumption of woven bags and easy breakage of woven bags causing slag spillage, improving the reliability of slag transfer, reducing the use of woven bags and improving environmental friendliness; on the other hand, this setting method allows the bottom cover to open under its own weight and close under the gravity of the cage, thereby simplifying the opening and closing operation of the bottom cover and improving the convenience of dumping slag. Attached Figure Description

[0016] The present application will be further illustrated below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments illustrated in the following drawings are exemplary and are only used to explain the present application, and should not be construed as limiting the present application.

[0017] Figure 1 This is a schematic diagram of the slag transfer device provided in the embodiments of this application;

[0018] Figure 2 This is a front view of the slag transfer device provided in the embodiments of this application;

[0019] Figure 3 Left view of the slag transfer device provided in the embodiments of this application;

[0020] Figure 4 A top view of the slag transfer device provided in the embodiments of this application;

[0021] Figure 5 for Figure 2 A magnified view of part A;

[0022] Figure 6 A schematic diagram of the slag transfer system provided in the embodiments of this application in the transfer state;

[0023] Figure 7 This is a schematic diagram of the slag transfer system provided in the embodiments of this application in the slag dumping state.

[0024] Reference numerals: 100, slag transfer device; 10, cage; 12, first lifting structure; 131, first side rail; 1311, main body; 1312, first connecting rod; 1313, second connecting rod; 132, second side rail; 14, rotating connector; 15, reinforcing rib; 20, bottom cover; 21, second lifting structure; 200, forklift; 201, fork arm. Detailed Implementation

[0025] The embodiments of this application are described in detail below with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] In the description of this application, it should be understood that the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In the description of this application, the use of terms such as "as one implementation," "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," "some examples," etc., indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] Firstly, please refer to Figures 1 to 4 This application provides a slag transfer device 100, including a cage 10 and a bottom cover 20. The cage 10 is used to load slag, and the bottom of the cage 10 has a first opening. The bottom cover 20 is rotatably connected to the cage 10. The bottom cover 20 can close the first opening when subjected to a supporting force, and the bottom cover 20 can open the first opening under its own weight when the supporting force is removed, so that the slag can be poured out from the first opening. Utilizing the mutual closing and opening action between the bottom cover 20 and the cage 10, when the slag transfer device 100 is placed on the ground, the cage 10 is pressed against the bottom cover 20 under the action of gravity, and the bottom cover 20 closes the first opening under the supporting force of the ground. At this time, the slag transfer device 100 can be loaded, and the slag can be filled into the cage 10. During the transfer process, the forks 201 of a forklift 200 can be used to lift the entire slag transfer device 100 (e.g., Figure 6 As shown), at this time, the fork arm 201 provides support to the bottom cover 20, so the bottom cover 20 can still maintain the sealing effect on the first opening during the transfer process. When dumping slag, the cage 10 is lifted using lifting equipment (such as an electric hoist, gantry crane hook, forklift 200 fork arm 201, etc.). At this time, the supporting force of the bottom cover 20 disappears, and the bottom cover 20 rotates relative to the cage 10 under its own weight, thereby opening the first opening (e.g., Figure 7 As shown, the slag is automatically poured out from the first opening under the action of gravity, thereby realizing the collection, transfer, and dumping of slag. Using the slag transfer device 100 provided in this application, on the one hand, it avoids the use of woven bags to load slag, thus solving the problems of high consumption of woven bags and easy breakage of woven bags causing slag spillage, improving the reliability of slag transfer, reducing the use of woven bags, and improving environmental friendliness; on the other hand, this setting allows the bottom cover 20 to open under its own weight and close under the gravity of the cage 10, thereby simplifying the opening and closing operation of the bottom cover 20 and improving the convenience of slag dumping operations.

[0031] In some embodiments, the cage 10 is provided with a first lifting structure 12, which is used to connect with lifting equipment to lift the cage 10. The bottom cover 20 is provided with a second lifting structure 21, which is used for the fork arm 201 of the forklift 200 to insert to lift the slag transfer device 100. When the fork arm 201 is inserted into the second lifting structure 21, the bottom cover 20 closes the first opening, and the cage 10 can be used to load slag. When the lifting equipment lifts the first lifting structure 12, the bottom cover 20 flips under its own weight to open the first opening, and the slag is poured out of the cage 10. By setting the first lifting structure 12 and the second lifting structure 21, a force-bearing point can be provided for the lifting equipment, which is convenient for the lifting equipment to lift or raise the slag transfer device 100, thereby improving the stability and reliability of the lifting.

[0032] In some embodiments, the cage 10 includes four side rails connected in sequence, two of which are opposite each other and are called first side rails 131, and the remaining two are called second side rails 132. The first side rails 131 protrude from the second side rails 132 along the height direction, and the protruding portion of the first side rails 131 forms a first lifting structure 12. By using the protruding portion of the first side rails 131 as the first lifting structure 12, the cage 10 does not need to have an additional dedicated lifting structure, thus simplifying the design of the cage 10. That is, the first side rails 131 can serve as side rails to enclose and form the cage 10 itself, and the protruding portion of the first side rails 131 can also be used by lifting equipment to lift the cage 10, making the structure of the cage 10 more concise. In addition, when the lifting equipment is connected to the first lifting structure 12, for example when the fork arm 201 is inserted into the first lifting structure 12, since the first lifting structure 12 is located at the top of the first side rail 131, the fork arm 201 can be prevented from being inserted into the slag filling space of the cage 10, thereby preventing the fork arm 201 from being inserted into the slag and ensuring that the fork arm 201 is easy to connect with the first lifting structure 12.

[0033] In some embodiments, the first side rail 131 includes a body portion 1311, two first connecting rods 1312, and a second connecting rod 1313. The two first connecting rods 1312 are vertically arranged and their tops protrude from the body portion 1311 along the height direction (e.g., Figures 1 to 3 (The z-direction in the diagram is the vertical direction). The two ends of the second connecting rod 1313 are respectively connected to the tops of the two first connecting rods 1312. The second connecting rod 1313 is spaced apart from the main body 1311, and the gap between the second connecting rod 1313 and the main body 1311 constitutes the first lifting structure 12. By setting two first connecting rods 1312 and the second connecting rod 1313 connecting the two first connecting rods 1312, a gap space is formed. This gap allows the fork arm 201 to be inserted, or the hook of the electric hoist to be inserted, or the hook of the gantry crane to be inserted, thereby lifting the cage 10. This arrangement simplifies the structure of the cage 10, making the structure of the cage 10 easier to implement.

[0034] In some embodiments, please refer to Figure 5 The bottom surface of the bottom cover 20 is provided with a supporting channel steel. The groove inside the supporting channel steel forms a second lifting structure 21, which is used for the insertion of the fork arm 201 of the forklift 200. Using the groove itself as the second lifting structure 21 has two advantages: firstly, the shape of the groove guides the insertion of the fork arm 201 and limits its movement, thereby improving the connection strength between the fork arm 201 and the supporting channel steel, enhancing the stability when the fork arm 201 lifts the bottom cover 20, and preventing the bottom cover 20 from slipping; secondly, the supporting channel steel has a simple structure and can be made of common channel steel material, making the second lifting structure 21 easy to implement. The supporting channel steel is located on the bottom surface of the bottom cover 20. When the slag transfer device 100 is placed on the ground, the bottom cover 20 closes the first opening, and the supporting channel steel can lift the bottom cover 20 a certain distance off the ground, providing support for the entire slag transfer device.

[0035] Optionally, both the cage body 10 and the bottom cover 20 can be made of metal materials. For example, the cage body 10 can be made of stainless steel fencing, and the bottom cover 20 can be made of stainless steel plate. Therefore, the supporting channel steel can be connected to the bottom cover 20 by welding, or it can be connected by bolts or other methods.

[0036] In some embodiments, two first side rails 131 are spaced apart along a first direction x, and two second side rails 132 are spaced apart along a second direction y. The lifting equipment includes a forklift 200, whose fork arms 201 can be inserted into a first lifting structure 12 along the first direction x. Two support channel steels are provided, extending along the first direction x and spaced apart along the second direction y. The fork arms 201 can be inserted into a second lifting structure 21 along the first direction x. Thus, the insertion direction of the fork arms 201 is the same whether it is inserted into the first lifting structure 12 or the second lifting structure 21. When the forklift 200 needs to transfer slag, the fork arm 201 is inserted into the second lifting structure 21 along the first direction x. When the slag needs to be dumped, the entire slag transfer device 100 is placed on the ground, and the forklift 200 re-inserts the fork arm 201 into the first lifting structure 12 along the first direction x, and lifts the entire slag transfer device 100. At this time, the bottom cover 20 loses its support and flips open under its own weight, and the slag is dumped out from the first opening. Throughout the entire slag transportation and dumping process, the insertion position of the fork arm 201 remains unchanged, thereby simplifying the movement direction of the fork arm 201 and the movement trajectory of the forklift 200, and improving the operational efficiency of slag transportation and dumping.

[0037] In some embodiments, the bottom of the cage 10 is further provided with a rotating connector 14, and the bottom cover 20 is rotatably connected to the rotating connector 14. The rotating connector 14 enables the bottom cover 20 to be rotatably connected to the cage 10, thus satisfying the reverse rotation requirement of the bottom cover 20.

[0038] In some embodiments, the rotating connector 14 includes a rotating hinge disposed at the bottom of one of the side rails of the cage 10, and one edge of the bottom cover 20 is rotatably connected to the rotating hinge. By disposing of the rotating hinge at the bottom of the side rail of the cage 10 and connecting one edge of the bottom cover 20 to the rotating hinge, the bottom cover 20 can rotate about one of its own edges as a pivot, allowing the weight of the bottom cover 20 to act entirely as the force for opening the first opening, ensuring that the bottom cover 20 can be opened.

[0039] As an alternative implementation, the pivot point for flipping the bottom cover 20 can be located parallel to any edge of the bottom cover 20, such as the midpoint between two opposing edges.

[0040] As an alternative implementation, the relative movement between the bottom cover 20 and the cage 10 can also be sliding, that is, the bottom cover 20 slides along the plane of the bottom surface of the cage 10, thereby opening the first opening.

[0041] In some embodiments, the cage 10 is formed by a plurality of sequentially connected side rails, each side rail having a plurality of reinforcing ribs 15. The top of the cage 10 is open and used to load slag. By configuring the cage 10 as a side-rail enclosure, the use of a single plate to form the cage 10 is avoided, thereby reducing the weight of the cage 10. The reinforcing ribs 15 on the side rails improve the structural strength of the side rails and prevent deformation of the cage 10. Exemplarily, the reinforcing ribs 15 can be arranged vertically, and multiple reinforcing ribs 15 can be arranged in parallel. Of course, in other examples, the reinforcing ribs 15 can also be arranged in a triangular structure.

[0042] Secondly, this application also provides a slag transfer system, which includes lifting equipment and the slag transfer device 100 provided in the first aspect. The lifting equipment is used to lift the cage 10 and also to support the bottom cover 20 so that the bottom cover 20 closes the first opening. Exemplarily, the lifting equipment can be an electric hoist, a gantry crane, etc., which can be used to lift the first lifting structure 12 to achieve slag dumping. The lifting equipment can also be a forklift 200, whose fork arm 201 can be inserted into the second lifting structure 21, using the forklift 200 to achieve slag transfer. Of course, the fork arm 201 of the forklift 200 can also be inserted into the first lifting structure 12 to achieve slag dumping.

[0043] Please combine Figure 6 and Figure 7Taking a forklift 200 for dumping slag as an example, the following is an example of the working process of a slag transfer system:

[0044] The slag transfer device 100 sits on the ground or other supporting surface, with the bottom cover 20 closed at the first opening. The top opening of the cage 10 is used to load slag. When the slag is full and needs to be transferred, a forklift 200 travels to the side of the slag transfer device 100 and inserts its fork arm 201 into the second lifting structure 21 of the bottom cover 20 along the first direction x. The fork arm 201 is raised to a certain height so that the entire slag transfer device 100 is off the ground. At this time, the fork arm 201 provides support to the bottom cover 20, which remains closed at the first opening (e.g., ...). Figure 6 (As shown). The forklift 200 travels to the slag dumping target location to realize slag transfer. During slag dumping, the fork arm 201 lowers to allow the bottom cover 20 to sit on the ground. At this time, the forklift 200 places the entire slag transfer device 100 back on the ground, the fork arm 201 retracts from the second lifting structure 21, and the fork arm 201 inserts into the first lifting structure 12 along the first direction x. The fork arm 201 is then raised, and the supporting force on the bottom cover 20 is removed. The bottom cover 20 flips open under its own weight (as shown). Figure 7 As shown), the fork arm 201 is raised to a certain height to ensure that the bottom cover 20 can be fully opened. After the bottom cover 20 is flipped over, the first opening is opened, and the slag can be poured out from the first opening at the bottom of the cage 10 by its own gravity, completing the slag dumping operation.

[0045] Finally, the fork arm 201 descends, the bottom cover 20 contacts the ground and gradually closes the first opening under the support of the ground, until the cage 10 sits on the bottom cover 20, and the bottom cover 20 completely closes the first opening. The fork arm 201 can then be withdrawn from the first lifting structure 12 and reinserted into the second lifting structure 21, lifting the entire slag transfer device 100 and transporting it to the location where slag needs to be filled, thus achieving the recycling of the slag transfer device 100.

[0046] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A slag transfer device, characterized in that: include A cage for loading slag, wherein the bottom of the cage has a first opening; The bottom cover is rotatably connected to the cage body. The bottom cover can be sealed when subjected to a supporting force, and the bottom cover can be opened under its own weight when the supporting force is removed so that the slag can be poured out from the first opening.

2. The slag transfer device according to claim 1, characterized in that: The cage is provided with a first lifting structure, which is used to connect with lifting equipment to lift the cage. The bottom cover is provided with a second lifting structure, which is used for the forks of a forklift to insert to lift the slag transfer device. When the fork arm is inserted into the second lifting structure, the bottom cover closes the first opening, and the cage can be used to load slag. When the lifting equipment lifts the first lifting structure, the bottom cover flips under its own weight to open the first opening, and the cage pours out the slag.

3. The slag transfer device according to claim 2, characterized in that: The cage includes four side rails connected in sequence, two of which are arranged opposite each other as the first side rails and the other two as the second side rails. The first side rails protrude from the second side rails along the height direction, and the protruding part of the first side rails forms the first lifting structure.

4. The slag transfer device according to claim 3, characterized in that: The first side rail includes a main body, two first connecting rods and a second connecting rod. The two first connecting rods are vertically arranged and their tops protrude from the main body along the height direction. The two ends of the second connecting rod are respectively connected to the tops of the two first connecting rods. The second connecting rod is spaced apart from the main body, and the gap between the second connecting rod and the main body constitutes the first lifting structure.

5. The slag transfer device according to claim 3, characterized in that: The bottom surface of the bottom cover is provided with a support channel steel, and the channel body inside the support channel steel is formed as the second lifting structure. The channel body inside the support channel steel is used for the insertion of the fork arm of the forklift.

6. The slag transfer device according to claim 5, characterized in that: Two first side rails are spaced apart along a first direction, and two second side rails are spaced apart along a second direction. The lifting equipment includes a forklift, and the forklift's fork arm can be inserted into the first lifting structure along the first direction. Two support channel steels are provided, which extend along a first direction and are spaced apart along a second direction. The fork arm can be inserted into the second lifting structure along the first direction.

7. The slag transfer device according to any one of claims 1 to 6, characterized in that: The bottom of the cage is also provided with a rotating connector, and the bottom cover is rotatably connected to the rotating connector.

8. The slag transfer device according to claim 7, characterized in that: The rotating connector includes a rotating hinge, which is disposed at the bottom of one of the side rails of the cage, and one edge of the bottom cover is rotatably connected to the rotating hinge.

9. The slag transfer device according to claim 1, characterized in that: The cage is formed by multiple side rails connected in sequence, each side rail is provided with multiple reinforcing ribs, and the top of the cage is open for loading slag.

10. A slag transfer system, characterized in that: Includes lifting equipment and a slag transfer device as described in any one of claims 1 to 9, wherein the lifting equipment is used to lift the cage and the lifting equipment is also used to support the bottom cover so that the bottom cover closes the first opening.