A tailings transportation chute maintenance structure

Abstract

The utility model relates to the technical field of overhauling equipment, especially relates to a tailing transportation chute overhauling structure. The slope of the side slope platform is 60 degrees, at least four groups of overhauling platforms are arranged on the side slope platform along the length direction of the chute, safety ladders are arranged on both sides of the overhauling platform on the side slope platform, and the smooth conversion of vertical traffic and horizontal operation is realized through the safety ladders; the safety ladders are arranged in the shape of "Z", are combined by a plurality of straight ladder sections and the rest platform in the middle, and each straight ladder section is inclined to the horizontal surface at a certain angle. The "Z" shape arrangement and the rest platform design of the safety ladder reduce the climbing difficulty and fatigue, guarantee the safety of the vertical traffic of the operating personnel; the setting of the overhauling platform provides reliable space for horizontal operation, avoids the high risk of suspended operation, reduces the operation safety level from "high risk" to "low risk". Meanwhile, the operation cost is greatly reduced without leasing a crane.

Description

Technical Field

[0001] This utility model relates to the field of maintenance equipment technology, and in particular to a maintenance structure for a tailings transport chute. Background Technology

[0002] Tailings are solid waste generated during industrial production processes, such as ore tailings from mining and smelting tailings from the metallurgical industry. These tailings typically require centralized transportation and processing using specialized conveying equipment to achieve rational resource recycling or environmentally friendly disposal. In tailings conveying systems, chutes are one of the commonly used conveying devices, especially in scenarios where tailings need to be transported along slopes; independently suspended chutes on slopes are widely used in these applications. However, a key problem currently exists with independently suspended chute equipment on slopes: the lack of dedicated access for inspection, maintenance, and routine cleaning. When a chute malfunctions and requires repair or routine cleaning, workers cannot safely and conveniently reach the chute's location. Existing operating methods typically involve using cranes for suspended operations. This method not only poses extremely high safety risks—workers operating in a suspended position are easily affected by the external environment and could fall with the slightest mishap—but also incurs high costs for crane rental and operation, significantly increasing the operating costs of the tailings conveying system. Furthermore, suspended operations are inefficient, prolonging maintenance and cleaning time and disrupting the normal operation of tailings conveying. To address the aforementioned issues, this invention proposes a tailings transport chute maintenance structure, aiming to provide a safe, convenient, and low-cost operating channel for chute maintenance and daily cleaning operations, ensuring the safety of operators, reducing operating costs, and improving operational efficiency. Utility Model Content

[0003] The purpose of this utility model is to solve the problems existing in the prior art by proposing a maintenance structure for a tailings transport chute.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The tailings transport chute maintenance structure includes a slope platform supporting the chute, the slope platform having a slope of 60°, and at least four sets of maintenance platforms along the length of the chute on the slope platform. Safety ladders are provided on both sides of the maintenance platforms on the slope platform, enabling a smooth transition between vertical traffic and horizontal operations. The safety ladders are arranged in a zigzag pattern, consisting of multiple straight ladder sections and a rest platform in the middle, with each straight ladder section having a certain angle of inclination to the horizontal plane.

[0005] Preferably, the angle of inclination of the straight ladder section to the horizontal plane is between 60° and 75°.

[0006] Preferably, the straight section of the safety ladder is equipped with a protective cage throughout.

[0007] Preferably, the upper end of the fence of the maintenance platform is provided with a sliding rail that fits into the fence, and safety belt buckles are used for safe operation.

[0008] Preferably, the maintenance platform is provided with a rail frame along its length on the rear side, and a maintenance frame that moves along the length of the rail frame is provided on the rail frame. The maintenance frame can be raised and lowered, and a second slide rail is provided on the maintenance frame to cooperate with the safety belt buckle for safe operation.

[0009] Preferably, the maintenance frame includes a base with four columns around it. Each column has a telescopic column that is vertically slidably installed inside it. Both the columns and the telescopic columns have through holes on their outer walls. Locking and lifting limits are achieved by fastening with bolts. A platform is fixedly connected to the upper end of the four columns. A guardrail is provided on the platform. One side of the guardrail is open, and a slide rail is installed on the guardrail.

[0010] Preferably, the base is equipped with load-bearing wheels on all four sides, and a railcar is detachably connected to the lower end of the base. The maintenance platform is equipped with rails for the railcar to move in a limited position.

[0011] Preferably, the surface of the maintenance platform and the platform itself is made of grating.

[0012] Preferably, the maintenance platform and the platform are equipped with toe boards around their perimeter.

[0013] Compared with the prior art, this utility model provides a maintenance structure for tailings transport chute, which has the following beneficial effects: This invention, through its structural design, completely changes the previous method of suspended operation using cranes, providing workers with a safe and stable working passage. The zigzag arrangement of the safety ladder and the design of the rest platform reduce the difficulty and fatigue of climbing, ensuring the safety of workers for vertical passage; the maintenance platform provides reliable space for horizontal operations, avoiding the high risks of suspended operations and reducing the safety level of the operation from "high risk" to "low risk". At the same time, there is no need to rent a crane, which significantly reduces operating costs, improves the efficiency of maintenance and cleaning operations, and ensures that the tailings conveying system can be quickly restored to normal operation.

[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the distribution of this utility model.

[0016] Figure 2 This is a three-dimensional schematic diagram of the maintenance platform of this utility model.

[0017] Figure 3 For the present utility model Figure 2 A 3D diagram after the maintenance platform has been removed.

[0018] Figure 4 This is a three-dimensional schematic diagram of the liftable maintenance rack of this utility model.

[0019] Figure 5 This is a three-dimensional schematic diagram of the railcar of this utility model.

[0020] Figure 6 This is a schematic diagram of the distribution of the safety ladder of this utility model.

[0021] In the diagram: 1. Maintenance platform; 2. Rail frame; 3. Rail; 4. Railcar; 5. Maintenance frame; 51. Base; 52. Column; 53. Telescopic column; 54. Platform; 55. Guardrail; 56. Slide rail II; 6. Fence; 7. Load-bearing wheel; 8. Safety ladder. Detailed Implementation

[0022] The following will refer to the appendix in the embodiments of this utility model. Figure 1-6 The technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0023] Example 1: To address the issue of existing independently suspended chute equipment on slopes lacking maintenance and daily cleaning access, and requiring cranes for suspended operations which leads to high risks and costs, a tailings transport chute maintenance structure is designed, comprising a slope platform carrying the chute, a maintenance platform 1, and a safety ladder 8. This structure enables a smooth transition between vertical transportation and horizontal operations, providing workers with a basic safe working access.

[0024] The slope platform is set at 60°. Its main function is to provide a stable foundation for the chute, allowing it to be firmly installed on the slope and preventing problems such as insecure installation or jamming and leakage during tailings transportation caused by an unreasonable slope. The 60° slope meets the requirements for smooth tailings transportation within the chute while ensuring the structural stability of the slope platform itself, preventing platform collapse due to an excessively large slope or reduced tailings transportation efficiency due to a too small slope.

[0025] Maintenance platform 1 is a steel frame platform with a surface of grating or anti-slip patterned steel plate as the load-bearing surface, providing both anti-slip and drainage functions. Toe boards (not shown in the attached diagram) are installed around the perimeter to prevent tools from slipping. At least four sets of support beams are securely connected to the rigid frame of the chute body or slope anchoring points at the lower perimeter (anchor holes are provided on the slope, anchor rods are inserted into them, and the beams are fixed with concrete). Diagonal auxiliary beams are installed between the support beams to form effective support. Maintenance platform 1 provides workers with a stable, flat, and safe standing space, completely replacing the suspended platform. Maintenance platform 1 can temporarily store tools, spare parts, and cleared materials. Workers can perform inspection, maintenance, and daily cleaning of the corresponding section of the chute on maintenance platform 1 without having to work suspended in mid-air. The at least four sets of support beams cover the main docking and splicing areas of the chute. Maintenance platform 1 is surrounded by a perimeter fence 6, providing basic fall protection and improving its safety.

[0026] Safety ladders 8 are installed on both sides of maintenance platform 1 in a zigzag pattern. They consist of multiple straight ladder sections and a central rest platform. Each straight ladder section and the central platform are fixed to the slope by several sets of steel structural supports. The main function of safety ladders 8 is to facilitate a smooth transition between vertical access and horizontal work. Workers can use safety ladders 8 to reach various maintenance platforms 1 from the ground or other work platforms. The zigzag arrangement, combined with the rest platforms, effectively reduces worker fatigue during climbing, especially when the slope is high. The rest platforms provide workers with space to rest midway, preventing accidents caused by exhaustion from prolonged climbing. The straight ladder sections are inclined at a certain angle to the horizontal plane, which is more ergonomic than vertical ladders, making it easier for workers to grip and climb, improving safety and convenience.

[0027] Based on the above technical solution: When maintenance or routine cleaning of the chute is required, workers first access the safety ladder 8 via the ground or other starting platform. Because the safety ladder 8 is arranged in a zigzag pattern and includes rest platforms, workers can take short breaks on the rest platforms according to their physical condition before continuing their climb to the required maintenance platform 1. Upon reaching maintenance platform 1, workers can then carry out chute maintenance, repair, or cleaning work on the level platform. After completing the work, they can then gradually return to the ground or starting platform via the safety ladder 8.

[0028] The structural design of this embodiment completely changes the previous method of working suspended in the air using cranes, providing workers with a safe and stable working passage. The zigzag arrangement of the safety ladder 8 and the design of the rest platform reduce the difficulty and fatigue of climbing, ensuring the safety of workers for vertical passage; the setting of the maintenance platform 1 provides reliable space for horizontal work, avoiding the high risks of suspended work and reducing the safety level of the operation from "high risk" to "low risk". At the same time, there is no need to rent a crane, which significantly reduces operating costs, improves the efficiency of maintenance and cleaning operations, and ensures that the tailings conveying system can be quickly restored to normal operation.

[0029] In this embodiment, the inclination angle between the straight ladder section and the horizontal plane is set between 60° and 75°. If the inclination angle is less than 60°, the ladder is too gentle, which will increase the overall length of the ladder, occupy more space on the slope platform, and require a larger stride when climbing, increasing the physical exertion of the workers. If the inclination angle is greater than 75°, the ladder is too steep, close to vertical, requiring greater grip strength from the workers, and making it difficult to control the center of gravity, which increases the risk of slipping and significantly increases safety risks. An inclination angle of 60°-75° ensures that the ladder has a reasonable length, avoids occupying too much space, and allows the workers to maintain a comfortable posture during climbing, making it easier to grip and exert force, effectively balancing the convenience and safety of climbing.

[0030] In this embodiment, the entire straight section of the safety ladder 8 is equipped with a protective cage. The protective cage comprises several arc-shaped frames arranged along the straight ladder. Multiple main rods are welded and fixed to the surfaces of several frames on the same set of straight ladders, forming a protective cage structure. A mesh is then bound to the surface with steel wire, forming the cage structure. After entering the straight section of the safety ladder 8, the worker's body is positioned inside the protective cage. The worker grips the handrails of the straight ladder with both hands and places their feet on the steps to climb. During the climb, regardless of whether the worker moves upwards or downwards, the protective cage always surrounds their body. If the worker experiences slippage, tilting, or other unexpected situations, their body will come into contact with the protective cage, which will act as a barrier, preventing them from falling from the side of the straight ladder section. Simultaneously, the protective cage also prevents external debris (such as tailings fragments, branches, etc.) from falling into the straight ladder section, avoiding injury to the worker.

[0031] In Example 2, the maintenance platform 1 is generally located below the chute, and the chute itself has a certain height. Therefore, the existing platform is inconvenient for maintaining the upper surface of the chute. Thus, a rail frame can be provided on the rear side of the maintenance platform 1 along its length, and a maintenance frame 5 that moves along the length of the rail frame can be raised and lowered.

[0032] The rail frame is installed on the rear side of the maintenance platform 1 along its length. Its main function is to provide a moving track for the maintenance frame 5, limit the direction of movement of the maintenance frame 5, and ensure that the maintenance frame 5 can move stably along the length of the chute, providing reliable guidance and support for the movement of the maintenance frame 5. The rail frame is made of high-strength alloy material, which has good load-bearing capacity and stability, and can withstand the weight of the maintenance frame 5 and the operators, preventing the maintenance frame 5 from being unable to move smoothly or causing safety accidents due to deformation of the rail frame.

[0033] The maintenance frame 5 is mounted on the rail frame. Its mobility allows it to move workers along the length of the chute, covering a wider working area and solving the problem of limited working range on the maintenance platform 1. Its height adjustment feature allows workers to adjust the height of the maintenance frame 5 according to the height requirements of different parts of the chute, enabling inspection, maintenance, and cleaning operations at different heights without the need for other lifting equipment. In particular, its height adjustment feature allows the maintenance frame 5 to retract to its lowest position when it needs to be moved from the left side of the chute to the right, allowing it to be moved from below the chute body. The purpose of not installing maintenance frames 5 on both sides of the chute body is that it is not always necessary to move the maintenance frame 5 during each maintenance session; therefore, one set can meet maintenance needs while minimizing the space occupied on the maintenance platform 1.

[0034] In this embodiment, the maintenance frame 5 includes a base 51, around which four columns 52 are arranged. Each column 52 has a telescopic column 53 vertically slidably installed inside it. Both the columns 52 and the telescopic columns 53 have through holes on their outer walls, which are secured with bolts for locking and height limiting. A platform 54 is fixedly connected to the upper ends of the four columns 52. Thus, the height of the maintenance frame 5 can be adjusted by changing the extension height of the telescopic columns 53 and alternating the bolt locking positions. A safety railing 55 is provided on the platform 54 for safety protection, with an opening on one side serving as an entrance.

[0035] In this example, the lower end of the base 51 is detachably connected to the railcar 4 via bolts. The maintenance platform 1 is equipped with rails 3 for limiting the movement of the railcar 4. The railcar 4 can move the maintenance frame 5, and the rails 3 limit its movement, ensuring that the railcar 4 can only move along the rails 3 (the wheels of the railcar 4 are double-grooved wheels, which engage with the rails 3 for guidance). The base 51 is equipped with load-bearing wheels 7 around its perimeter, and the maintenance platform 1 is also equipped with a rail frame 2. The load-bearing wheels 7 move along the rail frame 2, reducing the resistance to movement of the maintenance platform. In this design, the railcar 4 can be either motor-driven (the attached diagram shows an electric vehicle with self-locking capability) or without a drive mechanism, requiring manual pushing. Multiple through holes are spaced apart at both ends of the rail frame 2, and the base 51 has threaded studs. After moving the frame to the designated position, the studs are screwed into the through holes to lock the maintenance frame 5. This locking structure can also be used in conjunction with a motor-driven structure.

[0036] Preferably, C-shaped buckles can be welded and fixed on both the front and rear sides of the base 51 (along the length of the rail frame 2). The buckles can fasten onto the front and rear beams of the rail frame 2, forming a relatively stable connection between the rail frame 2 and the maintenance frame 5 through the fastening action, preventing the maintenance frame 5 from tilting to the side. Alternatively, an additional set of rails 3 can be installed on the rail frame 2 above the wheels of the railcar 4. The wheels are constrained by the two sets of rails 3, thereby allowing the railcar 4 to move stably on the maintenance platform and reducing the risk of the maintenance frame 5 tilting to the side.

[0037] In this embodiment, the upper end of the fence 6 of the maintenance platform 1 is provided with a slide rail 1 that fits the fence 6, and the guardrail 55 of the maintenance frame 5 is provided with a slide rail 2 56, which works in conjunction with the safety belt buckle for safe operation.

[0038] Generally speaking, slide rail one and slide rail two 56 are connected to the fence 6 and guardrail 55 by welding multiple steel plates to form a stable support.

[0039] The starting point of slide rail 2 56 is at the lowest end of telescopic column 53 when it is in the lowest retracted position, so that the safety buckle of the safety belt can be fastened to slide rail 2 56 before the technician climbs the maintenance frame 5.

[0040] If necessary, such as when the chute body partially sinks, the guardrail 55 can be removed and the maintenance frame 5 can be moved directly below the chute body. In emergency situations or during some maintenance phases, the maintenance frame 5 can temporarily support the chute, and the maintenance platform 1 can serve as an emergency temporary support structure, which can mitigate the deterioration of the situation to some extent.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A maintenance structure for a tailings transport chute, characterized in that, The system includes a slope platform with a chute, the slope of which is 60°. At least four maintenance platforms (1) are provided on the slope platform along the length of the chute. Safety ladders (8) are provided on both sides of the maintenance platform (1) on the slope platform. The safety ladders (8) enable a smooth transition between vertical traffic and horizontal operation. The safety ladders (8) are arranged in a zigzag pattern and are composed of multiple straight ladder sections and a rest platform in the middle. Each straight ladder section is inclined at a certain angle to the horizontal plane.

2. The tailings transport chute maintenance structure according to claim 1, characterized in that, The angle of inclination of the straight ladder section to the horizontal plane is between 60° and 75°.

3. The tailings transport chute maintenance structure according to claim 1, characterized in that, The straight section of the safety ladder (8) is equipped with a protective cage throughout.

4. The tailings transport chute maintenance structure according to claim 1, characterized in that, The upper end of the fence (6) of the maintenance platform (1) is provided with a slide rail that fits the fence (6) and is used in conjunction with the safety belt buckle for safe operation.

5. The tailings transport chute maintenance structure according to claim 1, characterized in that, The maintenance platform (1) is provided with a rail frame (2) along the length direction on the rear side. The rail frame (2) is provided with a maintenance frame (5) that moves along the length direction of the rail frame (2). The maintenance frame (5) can be raised and lowered. The maintenance frame (5) is provided with a slide rail (56) and is used in conjunction with a safety belt buckle for safe operation.

6. The tailings transport chute maintenance structure according to claim 5, characterized in that, The maintenance frame (5) includes a base (51), and four columns (52) are provided around the base (51). Each column (52) has a telescopic column (53) that is vertically slidably installed inside. Both the column (52) and the telescopic column (53) have through holes on their outer walls. Locking and lifting limits are achieved by fastening with bolts. The upper ends of the four columns (52) are fixedly connected to a platform (54). A guardrail (55) is provided on the platform (54). The guardrail (55) has an opening on one side, and a slide rail (56) is set on the guardrail (55).

7. The tailings transport chute maintenance structure according to claim 6, characterized in that, The base (51) is equipped with load-bearing wheels (7) around its perimeter. The lower end of the base (51) is detachably connected to a railcar (4). The maintenance platform (1) is equipped with a rail (3) for the railcar (4) to move in a limited position.

8. The tailings transport chute maintenance structure according to claim 5, characterized in that, The surfaces of the maintenance platform (1) and the platform (54) are all grating plates.

9. The tailings transport chute maintenance structure according to claim 5, characterized in that, The maintenance platform (1) and the platform (54) are equipped with toe boards around their perimeter.

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