Telescopic spout for ship loader
By installing multi-stage centering guide pipes and wear-resistant materials in the telescopic chute of the ship loader, the problem of easy damage to the ship loader chute is solved, achieving a long service life of the chute and efficient ship loading operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU HUAXIN MECHANICAL & ELECTRICAL ENGINEERING CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-21
AI Technical Summary
The telescopic chute of a ship loader is prone to damage, especially when loading and unloading hard materials, as the flow direction of the material impacts the chute wall, causing severe wear.
A multi-stage chute and centering guide pipe, including conical and straight pipes, are installed below the receiving hopper. The material flow direction is adjusted through the multi-stage centering structure to reduce the impact on the chute wall, and wear-resistant ceramics and high-strength steel pipes are used to enhance the structural durability.
It extends the service life of the chute, reduces equipment damage and replacement frequency caused by wear, improves loading efficiency and equipment stability, and reduces maintenance costs.
Smart Images
Figure CN224530094U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of telescopic chute technology, and more specifically, to a telescopic chute for a ship loader. Background Technology
[0002] In bulk cargo terminal loading and unloading operations, ship loaders, as important large-scale bulk cargo machinery, are widely used in the continuous loading of bulk commodities such as ore, coal, and sand and gravel aggregates. Their structure typically includes key components such as boom conveyor, transition conveyor, telescopic chute, tail car, traveling device, gantry, tower, pitching device, and slewing device. Among these, the telescopic chute, which can be extended and adjusted according to different operational needs, is a crucial mechanism for achieving precise material dispensing.
[0003] However, in actual operation, the telescopic chute of the ship loader faces serious wear resistance problems. This is particularly pronounced when loading and unloading hard materials such as sand and gravel aggregates made of granite and gneiss. From the material flow path, the sand and gravel aggregate enters the boom hopper from the boom, where guide plates change the material's direction to enter the receiving hopper of the telescopic chute. During this process, the material flow direction resembles a parabola. The point of impact directly hits the first chute section, generating a strong impact on the chute wall, leading to damage. The impact location varies depending on the boom's pitch angle; for example, during the dry season, the second chute section may also be impacted.
[0004] Therefore, how to solve the problem of easy damage to the telescopic chute of existing ship loaders is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a telescopic chute for a ship loader, which can reduce the impact of sand and gravel aggregate on the chute wall and extend the service life of the chute.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A telescopic chute for a ship loader, used to be installed below a receiving hopper, includes: a multi-stage chute and a centering guide pipe. The multi-stage chute includes at least a first-stage chute located at the center position. The centering guide pipe is located inside the first-stage chute and connected to the receiving hopper. The centering guide pipe has a multi-stage centering structure.
[0008] Preferably, the centering guide pipe includes a conical pipe and a straight pipe arranged coaxially. The straight pipe is connected to the small-diameter end of the conical pipe. A first flange and a second flange are respectively provided at both ends of the conical pipe. The large-diameter end of the conical pipe is connected to the primary chute and the receiving hopper through the first flange. The second flange is clearance-fitted with the inner wall of the primary chute.
[0009] Preferably, the inner diameter of the first flange is smaller than the inner diameter of the larger diameter end.
[0010] Preferably, the tapered tube, the straight tube, the first flange, and the second flange are integrated into one structure.
[0011] Preferably, the receiving hopper and the centering guide pipe are equipped with wear-resistant liners, and the wear-resistant liners are made of wear-resistant ceramics.
[0012] Preferably, the centering guide pipe is a high-strength wear-resistant steel pipe.
[0013] Preferably, the multi-stage sluice also includes a secondary sluice fitted outside the primary sluice. The secondary sluice is movably connected to the primary sluice. The secondary sluice includes multiple sluice sections, and adjacent sluice sections are nested and movably connected to each other.
[0014] Preferably, the outer periphery of the chute section is provided with lifting rings, which are lifted by a lifting device.
[0015] Preferably, a guiding mechanism is provided between the primary chute and the secondary chute, the guiding mechanism including a guide rail and a guide groove.
[0016] Preferably, a guide plate is provided above the receiving hopper, one end of the guide plate is hinged to the frame, the other end of the guide plate extends to the receiving hopper, and a wear-resistant liner is provided inside the guide plate.
[0017] The telescopic chute for a ship loader provided by this utility model is installed below the receiving hopper to guide materials in the receiving hopper into the ship. Specifically, the telescopic chute includes a multi-stage chute and a centering guide pipe. The multi-stage chute design allows the chute to be extended and retracted according to the size of the ship and changes in water level to adapt to different loading needs. The multi-stage chute includes at least one stage chute located in the center. The centering guide pipe is located inside the first-stage chute and connected to the receiving hopper to guide the flow direction of the material, ensuring that the material is centered when entering the chute, reducing the impact on the chute wall, and extending the service life of the chute. The centering guide pipe has a multi-stage centering structure, which reduces the direct impact of the material on the chute wall through multiple centering adjustments, extends the service life of the chute, and can more accurately control the flow direction of the material, ensuring that the material is completely centered when entering the chute. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0019] Figure 1 A schematic diagram of the telescopic chute of the ship loader provided by this utility model;
[0020] Figure 2 This is a schematic diagram of the centering guide tube provided by this utility model;
[0021] Figure 3 This is a partially enlarged view of the centering guide tube provided by this utility model.
[0022] Figure label:
[0023] 10-Receiving hopper;
[0024] 1-Multi-stage sluice, 11-Single-stage sluice, 12-Second-stage sluice;
[0025] 2-Centering guide pipe, 21-Conical pipe, 22-Straight pipe, 23-First flange, 24-Second flange;
[0026] 3-Abrasion-resistant lining plate. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 utility model according to the specific circumstances.
[0029] It should be noted that the directional terms such as "up" and "down" in the following text are defined based on the accompanying drawings in the instruction manual.
[0030] The core of this utility model is to provide a telescopic chute for a ship loader, which can reduce the impact of sand and gravel aggregate on the chute wall and extend the service life of the chute.
[0031] Please refer to Figure 1 , Figure 2 and Figure 3 A telescopic chute for a ship loader is installed below the receiving hopper 10 to guide the material in the receiving hopper 10 into the ship.
[0032] Specifically, the telescopic chute includes a multi-stage chute 1 and a centering guide pipe 2. The design of the multi-stage chute 1 allows the chute to be extended and retracted according to the size of the ship and changes in water level to adapt to different loading needs. The multi-stage chute 1 includes at least a first-stage chute 11 located in the center. The centering guide pipe 2 is located inside the first-stage chute 11 and connected to the receiving hopper 10 to guide the flow direction of the material, ensuring that the material can be centered when entering the chute, reducing the impact on the chute wall, and extending the service life of the chute. The centering guide pipe 2 has a multi-stage centering structure. Through multiple centering adjustments, it reduces the direct impact of the material on the chute wall, extends the service life of the chute, and can more accurately control the flow direction of the material, ensuring that the material can be completely centered when entering the chute.
[0033] The telescopic chute of the ship loader, designed in the above manner, reduces the direct impact of materials on the chute wall by adding a centering guide pipe 2 between the primary chute 11 and the receiving hopper 10, thereby extending the service life of the chute, reducing the frequency of chute replacement, and improving the loading efficiency.
[0034] In the above embodiment, the central guide pipe 2 includes a conical pipe 21 and a straight pipe 22 arranged coaxially. The straight pipe 22 is connected to the small diameter end of the conical pipe 21. The two ends of the conical pipe 21 are respectively provided with a first flange 23 and a second flange 24. The large diameter end of the conical pipe 21 is connected to the primary chute 11 and the receiving hopper 10 through the first flange 23. The second flange 24 is clearance-fitted with the inner wall of the primary chute 11.
[0035] It should be noted that before entering the chute, the material undergoes initial alignment via the tapered tube 21, and then further stabilization and guidance via the straight tube 22. The tapered tube 21's tapered design effectively adjusts the material's flow direction, ensuring it flows along the central axis and reducing impact on the chute wall. The straight tube 22 ensures that the material maintains a stable flow state after entering the chute, further optimizing the material's flow path and improving loading efficiency.
[0036] The first flange 23 ensures a secure connection between the centering guide pipe 2, the primary chute 11, and the receiving hopper 10, improving the overall structural stability. This connection not only withstands the impact forces generated during material flow but also ensures continuous material transport, reducing material leakage and equipment failure caused by loose connections. The robust connection enhances equipment reliability and reduces maintenance costs and downtime. The clearance fit between the second flange 24 and the inner wall of the primary chute 11 allows material to accumulate between the tapered pipe 21 and the chute wall when it breaks through the tapered pipe 21, thus protecting the chute.
[0037] Furthermore, the inner diameter of the first flange 23 is smaller than that of the larger diameter end, allowing the material to undergo preliminary alignment by passing through the inner diameter of the first flange 23 before entering the tapered tube 21. Due to the smaller inner diameter of the first flange 23, it creates a "bottleneck" effect, forcing the material to undergo an initial alignment adjustment before entering the tapered tube 21. This ensures that the material is already relatively aligned when entering the tapered tube 21, further improving the alignment accuracy after entering the chute and reducing the impact of the material on the chute wall.
[0038] In this embodiment, the first flange 23 achieves initial alignment of the material, the tapered pipe 21 achieves secondary alignment, and the straight pipe 22 achieves tertiary alignment. Through this three-stage alignment design, the material undergoes multiple alignment adjustments before entering the chute, ensuring that it flows along the central axis of the chute. This design significantly reduces the eccentric impact of the material on the chute wall, thereby effectively reducing wear on the chute wall. Especially for hard materials such as granite, gneiss, and other sand and gravel aggregates, this multi-stage alignment design can significantly extend the service life of the chute and reduce equipment damage and replacement frequency due to wear.
[0039] Furthermore, the tapered tube 21, the straight tube 22, the first flange 23, and the second flange 24 are integrated into one structure.
[0040] It should be noted that the integrated structure design significantly enhances the strength and stability of the entire centering guide pipe 2. Since there are no welds or splices between the components, structural weaknesses caused by stress concentration at connections are reduced, thereby improving the durability of the centering guide pipe 2 under material impact and long-term use. This design effectively withstands the impact forces and wear generated during material flow, ensuring long-term stable operation of the equipment. The integrated structure design ensures precise centering adjustment of the material upon entering the chute. The centering function of the tapered pipe 21 and the straight pipe 22 more accurately guides the material flow direction, reducing the impact of the material on the chute wall. This design not only improves the material flow efficiency but also reduces the resistance of the material within the chute, further improving loading efficiency.
[0041] In the above embodiment, the receiving hopper 10 and the centering guide pipe 2 are provided with wear-resistant liners 3, and the wear-resistant liners 3 are wear-resistant ceramics.
[0042] Understandably, wear-resistant ceramic liners possess extremely high hardness and wear resistance, effectively resisting the impact and abrasion of materials. Especially when handling hard materials such as granite, gneiss, and other sand and gravel aggregates, wear-resistant ceramic liners can significantly extend the service life of the receiving hopper 10 and the centering guide pipe 2, reducing equipment damage and replacement frequency caused by wear. In addition to high wear resistance, wear-resistant ceramic liners also have good surface smoothness, reducing material resistance within the receiving hopper 10 and the centering guide pipe 2. This design optimizes the material flow path, increases the material flow rate, and further improves loading efficiency. In practical applications, there are no restrictions on the material of the wear-resistant liner 3.
[0043] Based on the above embodiment, the centering guide pipe 2 is a high-strength wear-resistant steel pipe.
[0044] It should be noted that high-strength wear-resistant steel pipes possess extremely high hardness and wear resistance, effectively resisting the impact and abrasion of materials. Especially when handling hard materials such as granite, gneiss, and other sand and gravel aggregates, wear-resistant steel pipes can significantly extend the service life of the centering guide pipe 2, reducing equipment damage and replacement frequency caused by wear. Compared to ordinary steel, the service life of wear-resistant steel pipes can be several times longer, thereby reducing equipment maintenance costs. High-strength wear-resistant steel pipes not only have high wear resistance but also good structural strength. This design can effectively withstand the impact forces generated during material flow, ensuring the stability and reliability of the centering guide pipe 2 during long-term use. The high-strength design reduces deformation and damage caused by impact forces, further improving durability.
[0045] In the above embodiment, the multi-stage chute 1 further includes a secondary chute 12 sleeved outside the primary chute 11. The secondary chute 12 is movably connected to the primary chute 11. The secondary chute 12 includes multiple chute sections, and adjacent chute sections are sleeved and movably connected to each other.
[0046] Understandably, this multi-stage telescopic design allows the ship loader's telescopic chute to be flexibly adjusted according to the size of the ship and changes in water level. Whether in high or low water, the equipment can ensure smooth loading operations through telescopic adjustments. This design significantly improves the equipment's versatility and flexibility, enabling it to adapt to various complex loading environments.
[0047] In one preferred embodiment, the outer periphery of the chute section is provided with lifting rings, which are lifted by a lifting device.
[0048] It should be noted that the lifting device allows for flexible adjustment of the chute sections as needed. For example, in different loading operations, the combination of chute sections can be adjusted according to the height and position of the vessel to adapt to different operational requirements. This flexibility improves the versatility and applicability of the equipment. The use of lifting rings and lifting devices reduces the need for manual operation and lowers labor costs during maintenance. At the same time, rapid maintenance and replacement reduce equipment downtime, further reducing economic losses caused by equipment downtime, thereby lowering the overall maintenance cost of the equipment.
[0049] In the above case, a guiding mechanism is provided between the primary chute 11 and the secondary chute 12. The guiding mechanism includes a guide rail and a guide groove.
[0050] Understandably, the guide mechanism design ensures that the secondary chute 12 can move smoothly along the predetermined track during extension and retraction, reducing equipment damage caused by swaying or deviation during the process. This design significantly improves the stability of the equipment during extension and retraction, ensuring the smooth progress of loading operations.
[0051] In the above embodiment, a guide plate is provided above the receiving hopper 10. One end of the guide plate is hinged to the frame, and the other end of the guide plate extends to the receiving hopper 10. A wear-resistant liner 3 is provided inside the guide plate.
[0052] It should be noted that the design of the guide plate effectively guides the material to flow from above into the receiving hopper 10, ensuring that the material can enter the receiving hopper 10 smoothly and steadily. Through a hinged design, the guide plate can be flexibly adjusted according to the material's landing point and flow rate, optimizing the material's flow direction, reducing impact and splashing when the material enters the receiving hopper 10, and improving the stability of material conveying. The use of wear-resistant liners 3 effectively reduces the impact and wear of materials on the guide plate, extending its service life. Especially when handling hard materials such as granite, gneiss, and other sand and gravel aggregates, wear-resistant liners 3 can significantly reduce the wear rate of the guide plate, reducing equipment damage and replacement frequency caused by wear, and lowering equipment maintenance costs.
[0053] In summary, the telescopic chute for a ship loader provided by this utility model adds a centering guide pipe 2 lined with wear-resistant ceramic between the primary chute 11 and the receiving hopper 10. This centering guide pipe 2 design has multiple functions: it not only effectively blocks the direct impact of materials on the chute wall, but also, after the material penetrates the centering guide pipe 2, forms a "material-on-material" protection mechanism by accumulating between the centering guide pipe 2 and the chute wall, thereby further protecting the chute wall from wear. This design not only extends the service life of the chute but also reduces the user's maintenance costs, as the cost of replacing the tapered pipe 21 is far lower than replacing the entire chute.
[0054] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0055] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0056] The above provides a detailed description of the telescopic chute for a ship loader provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.
Claims
1. A telescopic chute for a ship loader, used to be installed below the receiving hopper (10), characterized in that, include: The multi-stage chute (1) and the centering guide pipe (2) are provided. The multi-stage chute (1) includes at least a first-stage chute (11) located at the center. The centering guide pipe (2) is located inside the first-stage chute (11) and connected to the receiving hopper (10). The centering guide pipe (2) has a multi-stage centering structure.
2. The telescopic chute of the ship loader according to claim 1, characterized in that, The centering guide pipe (2) includes a conical pipe (21) and a straight pipe (22) arranged coaxially. The straight pipe (22) is connected to the small diameter end of the conical pipe (21). The two ends of the conical pipe (21) are respectively provided with a first flange (23) and a second flange (24). The large diameter end of the conical pipe (21) is connected to the first-stage chute (11) and the receiving hopper (10) through the first flange (23). The second flange (24) is clearance-fitted with the inner wall of the first-stage chute (11).
3. The telescopic chute of the ship loader according to claim 2, characterized in that, The inner diameter of the first flange (23) is smaller than the inner diameter of the large diameter end.
4. The telescopic chute of the ship loader according to claim 3, characterized in that, The tapered tube (21), the straight tube (22), the first flange (23), and the second flange (24) are an integral structure.
5. The telescopic chute of the ship loader according to claim 1, characterized in that, The receiving hopper (10) and the centering guide pipe (2) are provided with wear-resistant liners (3), and the wear-resistant liners (3) are made of wear-resistant ceramics.
6. The telescopic chute of the ship loader according to claim 1, characterized in that, The centering guide pipe (2) is a high-strength wear-resistant steel pipe.
7. The telescopic chute of the ship loader according to any one of claims 1-6, characterized in that, The multi-stage chute (1) also includes a secondary chute (12) sleeved outside the primary chute (11). The secondary chute (12) is movably connected to the primary chute (11). The secondary chute (12) includes multiple chute sections, and adjacent chute sections are sleeved and movably connected to each other.
8. The telescopic chute of the ship loader according to claim 7, characterized in that, The outer periphery of the chute section is provided with lifting rings, which are lifted by a lifting device.
9. The telescopic chute of the ship loader according to claim 8, characterized in that, A guiding mechanism is provided between the primary chute (11) and the secondary chute (12), the guiding mechanism including a guide rail and a guide groove.
10. The telescopic chute of the ship loader according to claim 9, characterized in that, A guide plate is provided above the receiving hopper (10). One end of the guide plate is hinged to the frame, and the other end of the guide plate extends to the receiving hopper (10). A wear-resistant liner is provided inside the guide plate.