Capability-adjustable bulk cargo wharf direct taking, loading and unloading process system

Abstract

The utility model discloses a bulk cargo wharf direct taking loading and unloading process system with adjustable capacity. The bulk cargo wharf direct taking loading and unloading process system comprises a ship unloader, a main unloading conveying line, a direct taking conveying line, a plurality of stockpiling conveying lines, a plurality of stockpiling fields and a material taking conveying line. The ship unloader transfers bulk cargoes between the bulk cargo ship and the main unloading conveying line, the input end of the direct taking conveying line is connected with the main unloading conveying line, the output end of the direct taking conveying line is connected with a terminal material receiving port of the evacuation port, the stacking conveying line is arranged on the side face of the stacking yard in parallel and communicated with the stacking yard, the input end of the stacking conveying line is communicated with the main unloading conveying line, and the taking conveying line is communicated with the stacking yard. The output end is connected with the evacuation port terminal material receiving port; according to the loading and unloading process system, the transportation capacity of the direct taking transportation line, the stacking transportation line and the taking transportation line is set and coordinated, the problem that the ship unloading capacity and the terminal transportation capacity are unbalanced can be coordinated, and the influence of capacity unbalance on the bulk material ship unloading efficiency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of port transportation technology, specifically to a bulk cargo terminal direct loading and unloading process system with adjustable capacity. Background Technology

[0002] Currently, belt conveyor technology for transporting bulk commodities such as coal, ore, and grain is widely used in ports both domestically and internationally, offering advantages such as "large-volume, energy-efficient, environmentally friendly, safe, and stable operation." my country's coal transportation follows a "north-to-south" pattern, meaning that northern ports are primarily for unloading coal, while southern ports are primarily for shipping coal. Many thermal power plants are built near these ports, but their efficiency is limited by coal demand and is generally far lower than the port's coal transport capacity. Furthermore, my country mainly relies on importing iron ore from Russia, Africa, and Australia. Many steel mills are built near these ports, but the iron ore transport capacity within these mills is also far lower than the port's unloading capacity. Similar issues exist with bulk grain; the transport capacity of grain and oil processing plants or traders' storage yards is generally much lower than the port's capacity. Therefore, there is a widespread imbalance between the port's bulk cargo transport capacity and its end-user capacity.

[0003] To address the aforementioned imbalance, the current standard port operation is to first unload the materials from the ship and store them in the port yard, and then use mobile machinery or a reclaimer and belt conveyor to transport them to the rear. In this way, all materials need to be turned over in the yard, which increases the material turnover operation, involves repetitive operations, and reduces the efficiency of material unloading.

[0004] Therefore, how to effectively solve the imbalance between the port's transport capacity and speed for bulk cargo and the terminal port clearance capacity and speed, ensure efficient production for both sides, prevent overloading and tonnage loss during transport, rationally plan port clearance routes, and improve port clearance efficiency are important issues in port design, construction, and operation. Utility Model Content

[0005] The purpose of this invention is to overcome the deficiencies of the prior art and provide a bulk cargo terminal direct loading and unloading process system with adjustable capacity to solve one or more problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] An adjustable-capacity bulk cargo terminal direct loading and unloading process system includes a ship unloader, a main unloading conveyor, a direct-access transport line, multiple stacking conveyor lines, multiple stockpiles, and a material collection transport line. The ship unloader transfers bulk cargo between the bulk cargo berth and the main unloading conveyor. The input end of the direct-access transport line is connected to the main unloading conveyor, and the output end is connected to the port terminal receiving port. A stacking conveyor is set parallel to the side of the stockpiles, connecting to the stockpiles. Its input end is connected to the main unloading conveyor, and the material collection transport line is connected to the stockpiles. Its output end is connected to the port terminal receiving port.

[0008] Furthermore, the direct transport line is vertically installed at one end of the stockpile, and it is connected in series to the input ends of all stockpile conveyor lines. The input ends of the stockpile conveyor lines are connected to the direct transport line through a load-bearing diverter. The end of the unloading main transport line is equipped with a total flow belt scale, and the total flow belt scale collects the bulk cargo flow information in real time and feeds it back to each load-bearing diverter.

[0009] Furthermore, the load-bearing diverter is a bucket-type diverter, with a self-adjusting belt scale installed behind it. The self-adjusting belt scale is located on the direct conveyor line and is used to collect material flow information in real time and feed it back to the load-bearing diverters at their respective front ends.

[0010] Furthermore, the material reclaiming conveyor line is vertically positioned at the other end of the stockpile, and the output end of the stockpile conveyor line extends to the material reclaiming conveyor line, which is connected in series to the output ends of all stockpile conveyor lines.

[0011] Furthermore, each of the two adjacent stockpiles is provided with a stockpile and reclaiming port on its adjacent side, and there are at least two stockpile and reclaiming ports on each side of the stockpiles, which are located near both ends of the stockpiles to allow for flexible arrangement of material feeding and reclaiming.

[0012] Furthermore, the stockpiling conveyor line adopts an adjustable belt speed conveyor.

[0013] Compared with the prior art, the adjustable capacity bulk cargo terminal direct loading and unloading process system of this utility model has the following beneficial effects:

[0014] This loading and unloading process system sets up and coordinates the transport capacity of the direct-access transport line, the stacking transport line, and the retrieving transport line. For bulk materials that are not suitable for storage, or when the unloading capacity can match the terminal's transport capacity, the bulk materials are directly transported to the port terminal receiving port via the direct-access transport line. When the unloading capacity is greater than the terminal's transport capacity, the bulk materials are transferred to the stockpile yard via the stacking transport line, and then retrieved by the retrieving transport line and transported to the port terminal receiving port. By coordinating the imbalance between the unloading capacity and the terminal's transport capacity, the system reduces the impact of capacity imbalance on the unloading efficiency of bulk materials. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the loading and unloading process system disclosed in this utility model.

[0016] In the diagram: 1. Bulk cargo berth; 2. Ship unloader; 3. Main unloading conveyor; 4. Total flow belt scale; 5. Direct transport line; 6. Loaded diverter; 7. Stacking and reclaiming port; 8. Stacking conveyor; 9. Stockyard; 10. Reclaiming transport line; 11. Port terminal receiving port; 12. Self-adjusting belt scale. Detailed Implementation

[0017] 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 the preferred 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.

[0018] This embodiment provides a capacity-adjustable bulk cargo terminal direct loading and unloading process system, such as... Figure 1 As shown, it includes a ship unloader 2, a main unloading conveyor line 3, a direct transport line 5, multiple stockpile conveyor lines 8, multiple stockpile yards 9, and a material retrieving transport line 10;

[0019] Multiple unloading ports are set up on the bulk cargo berth 1, and each unloading port is equipped with an unloading machine 2. The main unloading conveyor line 3 is parallel to the bulk cargo berth 1 and is connected in series to all unloading ports. Bulk materials are unloaded by the unloading machines 2 and collected onto the main unloading conveyor line 3. The input end of the direct transport line 5 is connected to the main unloading conveyor line 3, and the output end is connected to the port terminal receiving port 11. Bulk materials that are not suitable for storage, or when the unloading capacity can match the terminal's conveying capacity, are directly transported to the port terminal receiving port 11 via the direct transport line 5.

[0020] The wharf is also equipped with a stockpile yard 9. A stockpile conveyor line 8 is installed parallel to the side of the stockpile yard 9 and connects to the inlet of the stockpile yard 9. The input end of the stockpile conveyor line 8 is connected to the main unloading conveyor line 3. When the unloading capacity is greater than the terminal conveying capacity, bulk cargo enters the stockpile yard 9 through the stockpile conveyor line 8 for transfer. A material retrieval conveyor line 10 is set up in the stockpile yard 9. The output end of the material retrieval conveyor line 10 is connected to the port terminal receiving port 11. The bulk cargo transferred in the stockpile yard 9 is transported to the port terminal receiving port 11 by the material retrieval conveyor line 10 to coordinate the imbalance between the unloading capacity and the terminal conveying capacity, so as to reduce the impact of the capacity imbalance on the unloading efficiency of bulk cargo.

[0021] In this embodiment, since bulk cargo is preferentially transported through the direct transport line 5 for port clearance, in order to make full use of the conveying capacity of the direct transport line 5, the direct transport line 5 also serves as the conveyor line of the stockpile yard 9. It is vertically set at one end of the stockpile yard 9 and connected in series to the input ends of all stockpile conveyor lines 8. The end of the unloading main transport line 3 is equipped with a total flow belt scale 4, which collects the flow information of bulk cargo on it in real time. The input end of the stockpile conveyor line 8 is equipped with a load divider 6. According to the terminal capacity and demand, the flow information of bulk cargo, and the material conditions of each stockpile yard 9, the load divider 6 allocates the bulk cargo on the direct transport line 5, including storage allocation and yard allocation.

[0022] In this embodiment, the load-carrying diverter 6 adopts a self-developed self-adjusting rotating bucket structure diverter, which has been patented in CN202023033831.9 as a quantitative rotating bucket type load-carrying diverting device. Based on the flow information of the total flow belt scale 4 and the calculated transfer flow information, the swing angle of the rotating bucket of the load-carrying diverter 6 at the input end of each stacking conveyor line 8 is adjusted, and the diverting flow is preset. In order to improve the diverting control accuracy of each branch line, a self-adjusting belt scale 12 is configured behind each load-carrying diverter 6. The self-adjusting belt scale 12 is located on the direct transport line 5. It collects the actual remaining bulk material flow of the direct transport line 5 after diversion by the load-carrying diverter 6 at each node in real time. Based on the flow design of the direct transport line 5 at the rear end of the load-carrying diverter 6, the swing angle of the rotating bucket is corrected and fine-tuned.

[0023] In this embodiment, in order to make full use of the conveying energy of the stockpile conveyor line 8, the material taking conveyor line 10 is vertically set at the other end of the stockpile yard 9. The output end of the stockpile conveyor line 8 extends to the material taking conveyor line 10. The material taking conveyor line 10 is connected in series to the output ends of all stockpile conveyor lines 8. The material feeding and discharging of the stockpile yard 9 share the same conveyor line. In addition, the stockpile conveyor line 8 adopts an adjustable belt speed belt conveyor. The belt speed of the stockpile conveyor line 8 is adjusted according to the power of the flow rate to reduce the energy consumption of stockpile conveying.

[0024] In traditional stockpile yard 9, the stockpile inlet and reclaimer are located on both sides of the yard. This arrangement is suitable for first-in, first-out (FIFO) transfer requirements, but not for the storage of bulk materials. During the unloading period, stockpile yard 9 mainly handles feeding operations, requiring high stockpiling efficiency to improve unloading efficiency. After unloading, during the reclaiming period, stockpile yard 9 mainly handles discharging operations, requiring high discharging efficiency. Furthermore, the shared conveyor line for feeding and discharging in stockpile yard 9 allows for flexible and adaptable arrangement of the stockpile inlet and reclaimer. (Refer to...) Figure 1Each adjacent side of two adjacent stockpiles 9 is provided with a stacking and reclaiming port 7. The outermost stockpiles 9 do not have a stacking and reclaiming port 7 on their outer side. The material transfer equipment of the stacking and reclaiming port 7 is fully utilized. The stacking and reclaiming port 7 has both feeding and discharging functions. For the side of the stockpiles 9 with stacking and reclaiming ports 7, there are at least two stacking and reclaiming ports 7 on each side, which are set near the two ends of the stockpiles 9 respectively. In this way, using the same stockpiling conveyor line 8, the stacking and reclaiming port 7 at the front end of the stockpiles 9 is used as the stockpiling inlet, and the stacking and reclaiming port 7 at the rear end is used as the reclaiming outlet. The feeding and discharging of the stockpiles 9 do not affect each other. During the peak period of unloading and feeding, both the front and rear stacking and reclaiming ports 7 are used as stockpiling inlets. Similarly, during the peak period of reclaiming, both the front and rear stacking and reclaiming ports 7 are used as reclaiming outlets. This flexible arrangement adapts to the transportation needs of the terminal.

[0025] The directional terms such as "front," "back," "end," and "side" mentioned in this article are used in the context of... Figure 1 The directions and orientations shown in the corresponding figures are described. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation;

[0026] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A capacity adjustable bulk cargo terminal direct ship-to-shore loading and unloading process system, characterized in that: It comprises an unloading machine, a total unloading conveying line, a direct conveying line, a plurality of stacking conveying lines, a plurality of stacking yards and a material taking conveying line; the unloading machine transfers bulk cargo between a bulk cargo ship and the total unloading conveying line; the direct conveying line is connected with the total unloading conveying line at the input end and connected with a receiving port of a port terminal at the output end; the stacking yards are arranged in parallel with the stacking conveying lines at the side; the stacking conveying lines are connected with the stacking yards and the input ends of the stacking conveying lines are connected with the total unloading conveying line; the material taking conveying line is connected with the stacking yards and the output end of the material taking conveying line is connected with the receiving port of the port terminal.

2. Bulk cargo terminal direct unloading process system with adjustable capacity according to claim 1, characterized in that: The direct conveying line is vertically arranged at one end of the stacking yards and connected with the input ends of all the stacking conveying lines; the input ends of the stacking conveying lines are connected with the direct conveying line through belt load dividers; the total unloading conveying line is provided with a total flow belt scale at the tail end; the bulk cargo flow information collected by the total flow belt scale is fed back to each belt load divider.

3. Bulk cargo terminal direct unloading process system with adjustable capacity according to claim 2, characterized in that: The belt load divider is a rotary hopper structure divider and is provided with a self-adjusting belt scale at the back; the self-adjusting belt scale is located on the direct conveying line and is used to collect material flow information in real time and feed back to the belt load divider at the front end.

4. The capacity adjustable bulk cargo terminal direct ship-to-shore loading and unloading process system of claim 2, wherein: The material taking conveying line is vertically arranged at the other end of the stacking yards; the output ends of the stacking conveying lines extend to the material taking conveying line; the material taking conveying line is connected with the output ends of all the stacking conveying lines.

5. Bulk commodity terminal direct unloading process system with adjustable capacity according to claim 4, characterized in that: Adjacent sides of two adjacent stacking yards are respectively provided with stacking and taking material ports; the stacking and taking material ports on one side of the stacking yard are at least two and are arranged close to the two ends of the stacking yard to flexibly arrange the feeding and taking of bulk cargo.

6. The capacity adjustable bulk cargo terminal direct ship-to-shore loading and unloading process system according to any one of claims 1 to 5, characterized in that: The stacking conveying line adopts an adjustable belt speed belt conveyor.

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