A high-quality ore mixing operation device and method that takes into account the production balance of loading and unloading ships

Abstract

A high-quality ore-mixing operation device that takes into account the production balance of loading and unloading ships, the device includes two sets of ore-mixing devices, the first set of ore-mixing devices includes a first reclaiming hopper turbine, a first ore-mixing belt conveyor, an output belt conveyor, a wharf unloading line belt conveyor, a ship unloader and a first stockpile; at least two first reclaiming hopper turbines are provided, the input end of the first ore-mixing belt conveyor is connected to the output end of the first reclaiming hopper turbine, the input end of the output belt conveyor is connected to the output end of the first ore-mixing belt conveyor, the input end of the wharf unloading line belt conveyor is connected to the input end of the output belt conveyor, the input end of the ship unloader is connected to the output end of the wharf unloading line belt conveyor, and the first stockpile is arranged on the output end side of the ship unloader. The device can link the unloading line and the loading line of the port wharf, realize the overall integration of unloading operations, ore-mixing operations and loading operations, and has good ore-mixing effect and high efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of port transportation, in particular to a high-quality ore mixing operation device that takes into account the production balance of loading and unloading ships, and also to an operation method of the high-quality ore mixing operation device that takes into account the production balance of loading and unloading ships. Background Art

[0002] In recent years, with the implementation of the national policy of eliminating excess production capacity and the weakening of the international and domestic economic markets, the growth rate of domestic mineral sand imports has slowed down, while competition between ports has become increasingly fierce, and the profit per ton of mineral sand loading and unloading has declined. With the changes in the ore market, customers hope to blend ores of different grades at the terminal to meet the purchasing needs of different buyers. The blending business is also becoming a new highlight that drives port transformation and economic growth. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a high-quality ore mixing operation device which can link the unloading line with the loading line, realize the coordinated integration of unloading operation, ore mixing operation and loading operation, and take into account the production balance of loading and unloading.

[0004] Another technical problem to be solved by the present invention is to provide an ore mixing operation method of the above-mentioned high-quality ore mixing operation device which takes into account the production balance of the loading and unloading ship.

[0005] The technical problem to be solved by the present invention is achieved through the following technical solutions. The present invention is a high-quality ore mixing operation device that takes into account the production balance of loading and unloading ships. The device includes two sets of ore mixing devices. The first set of ore mixing devices includes a first reclaiming hopper turbine, a first ore mixing belt conveyor, an output belt conveyor, a dock unloading line belt conveyor, a ship unloader and a first yard; at least two first reclaiming hopper turbines are provided, the input end of the first ore mixing belt conveyor is connected to the output end of the first reclaiming hopper turbine, the input end of the output belt conveyor is connected to the output end of the first ore mixing belt conveyor, the input end of the dock unloading line belt conveyor is connected to the input end of the output belt conveyor, the input end of the ship unloader is connected to the output end of the dock unloading line belt conveyor, and the first yard is arranged on the output end side of the ship unloader;

[0006] The second set of ore mixing equipment includes a second reclaiming hopper turbine, a second ore mixing belt conveyor, a ship loader, a conveying hopper, a conveying belt conveyor, an output bucket turbine and a second yard; at least two second reclaiming hopper turbines are provided, the input end of the second ore mixing belt conveyor is connected to the output end of the second reclaiming hopper turbine, the input end of the ship loader is connected to the output end of the second ore mixing belt conveyor, the input end of the conveying belt conveyor is connected to the output end of the ship loader, the output bucket turbine is connected to the output end of the conveying belt conveyor, and the second yard is arranged on the output end side of the output bucket turbine.

[0007] The technical problem to be solved by the present invention can also be further achieved through the following technical scheme. For the high-quality ore mixing operation device that takes into account the production balance of loading and unloading ships as mentioned above, belt scales are installed on the first reclaiming bucket wheel machine, the first ore mixing belt conveyor, the output belt conveyor, the dock unloading line belt conveyor, the second reclaiming bucket wheel machine, the second ore mixing belt conveyor, the conveyor belt conveyor and the output bucket wheel machine.

[0008] The technical problem to be solved by the present invention can be further achieved by the following technical solution. For the above-mentioned high-quality ore mixing operation device that takes into account the production balance of loading and unloading ships, the conveying funnel is arranged above the conveying belt conveyor.

[0009] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the high-quality ore mixing operation device that takes into account the production balance of loading and unloading ships as described above, an automatic sampling device is also installed on the first ore mixing belt conveyor and the output bucket wheel conveyor.

[0010] The technical problem to be solved by the present invention can be further achieved through the following technical scheme. For the high-quality ore mixing operation device that takes into account the production balance of loading and unloading ships mentioned above, several first intermediate transfer stations are also arranged between the first hopper turbine and the first ore mixing belt conveyor, and several first mixers are arranged in the first intermediate transfer stations.

[0011] The technical problem to be solved by the present invention can be further achieved through the following technical scheme. For the high-quality ore mixing operation device that takes into account the production balance of loading and unloading ships mentioned above, several second intermediate transfer stations are also arranged between the second hopper turbine and the second ore mixing belt conveyor, and several second mixers are arranged in the second intermediate transfer stations.

[0012] The technical problem to be solved by the present invention can be further achieved by the following technical solutions. For the above-mentioned high-quality ore mixing operation device taking into account the production balance of loading and unloading ships, a high-quality ore mixing operation method taking into account the production balance of loading and unloading ships includes:

[0013] (1) When there is no ship unloading operation, the first set of ore mixing equipment is used for ore mixing operation. The steps are as follows:

[0014] (1.1) The first reclaiming hopper turbine takes materials from different stockpiles according to the mixing ratio and sends the materials to the first mixing belt conveyor, where the materials are mixed while being transported;

[0015] (1.2) The first mixing belt conveyor transports the materials to the output belt conveyor, the output belt conveyor transports the materials to the wharf unloading line belt conveyor, the wharf unloading line belt conveyor transports the materials to the ship unloader, and finally the materials are transported to the first storage yard by the ship unloader for storage;

[0016] (2) When there is ship unloading operation, the second set of ore mixing equipment is used for ore mixing operation. The steps are as follows:

[0017] (2.1) The second reclaiming hopper turbine takes materials from different stockpiles according to the mixing ratio and sends the materials to the second mixing belt conveyor, where the materials are mixed while being transported;

[0018] (2.2) The second mixing belt conveyor transports the materials to the ship loader, and the chute of the ship loader sends the materials into the conveying funnel, and then into the conveying belt conveyor through the conveying funnel, and finally sent to the second storage yard for storage through the output bucket wheel excavator.

[0019] Compared with the prior art, the present invention can achieve mixing of ores of different grades at the wharf to meet the purchasing needs of different buyers. By setting two sets of ore mixing devices, when there is no ship unloading operation at the wharf, the second set of ore mixing devices is used for ore mixing operation, and when there is ship unloading operation at the wharf, the third set of ore mixing devices is used for ore mixing operation; the ship loaders and ship unloaders of the two sets of ore mixing devices can also perform ship loading and unloading operations independently, which not only realizes the ore mixing operation at the wharf, but also ensures the high quality of the ore mixing operation, and effectively solves the conflict between the ore mixing operation and the ship loading and unloading operation;

[0020] Beneficial effects of the present invention:

[0021] 1. Multiple mixing points: Mixed ore materials need to go through multiple mixing points so that the materials are fully and evenly mixed before being sent to the yard;

[0022] 2. Install accurate measuring belt scale equipment, which has stable operation and high accuracy (2‰);

[0023] 3. The mixed ore operation can be sampled and inspected through the automatic sampling system, and the quality of the mixed ore is guaranteed;

[0024] 4. High mixing efficiency and good mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a process flow chart of the first set of ore mixing device of the present invention;

[0026] Figure 2 This is a process flow chart of the second set of ore mixing device of the present invention;

[0027] Figure 3 This is a practical operation flow chart of the first set of ore mixing device of the present invention;

[0028] Figure 4 This is a practical operation flow chart of the second set of ore mixing device of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Reference Figure 1-2 A high-quality ore-mixing operation device that takes into account the production balance of loading and unloading ships, the device includes two sets of ore-mixing devices, the first set of ore-mixing devices includes a first reclaiming hopper turbine, a first ore-mixing belt conveyor, an output belt conveyor, a wharf unloading line belt conveyor, a ship unloader and a first yard; the first reclaiming hopper turbine is provided with at least two units, the input end of the first ore-mixing belt conveyor is connected to the output end of the first reclaiming hopper turbine, the input end of the output belt conveyor is connected to the output end of the first ore-mixing belt conveyor, the input end of the wharf unloading line belt conveyor is connected to the input end of the output belt conveyor, and the unloader is The input end is connected to the output end of the conveyor belt of the wharf ship unloading line, and the first stockpile is set at the output end side of the ship unloader; the first reclaiming hopper turbine is used to take materials from different stockpiles respectively, so as to facilitate the mixing of different mineral materials in proportion. The setting of the first mixing belt conveyor, the output belt conveyor and the wharf ship unloading line belt conveyor not only realizes the transportation of the mixed mineral materials, but also increases multiple material drop points, so as to ensure that the materials are mixed more evenly; the first set of mixing device needs to use the ship unloader, so as to borrow the existing ship unloader at the wharf in actual application, thereby reducing the configuration cost;

[0031] The second set of ore-mixing equipment includes a second reclaiming hopper turbine, a second ore-mixing belt conveyor, a ship loader, a conveying hopper, a conveying belt conveyor, an output bucket turbine and a second stockpile; at least two second reclaiming hopper turbines are provided, the input end of the second ore-mixing belt conveyor is connected to the output end of the second reclaiming hopper turbine, the input end of the ship loader is connected to the output end of the second ore-mixing belt conveyor, the input end of the conveying belt conveyor is connected to the output end of the ship loader, the output bucket turbine is connected to the output end of the conveying belt conveyor, and the second stockpile is arranged on the output end side of the output bucket turbine. The second reclaiming hopper turbine is used to take materials from different stockpiles respectively, so as to facilitate the mixing of different ore materials in proportion. The arrangement of the second ore-mixing belt conveyor, the ship loader, the conveying hopper and the output bucket turbine not only realizes the transportation of the mixed ore materials, but also increases multiple material drop points, so as to ensure that the materials are mixed more evenly; the first set of ore-mixing equipment needs to rely on the ship loader, so that in actual application, the existing ship loader at the wharf can be borrowed, thereby reducing the configuration cost;

[0032] Belt scales are installed on the first reclaiming hopper wheel machine, the first mixing ore belt conveyor, the output belt conveyor, the wharf unloading line belt conveyor, the second reclaiming hopper wheel machine, the second mixing ore belt conveyor, the conveyor belt conveyor and the output bucket wheel machine. They operate stably and have high accuracy (2‰), providing strong measurement guarantee for mixing ore operations or later shipment.

[0033] The conveying funnel is arranged above the conveying belt conveyor, which is convenient for receiving the ore conveyed by the ship loader and for conveying the ore to the conveying belt conveyor. A wear-resistant plate is installed in the conveying funnel, which can play a certain buffering role and extend the service life of the conveying funnel.

[0034] An automatic sampling device is also installed on the first mixing belt conveyor and the output bucket wheel conveyor. The automatic sampling device adopts the mineral automatic sampling device in the existing technology, which is used for the quality inspection of the mixing operation. During the mixing operation, there will be multiple material drop points. The automatic sampling device can perform automatic sampling operations, and can take samples on the spot at the material drop site, and then send the samples to the commercial inspection and sample preparation, so that the inspection and quarantine bureau team can detect the moisture and quality of the goods after mixing, and issue corresponding test reports.

[0035] A plurality of first intermediate transfer stations are arranged between the first reclaiming hopper turbine and the first mixing belt conveyor, and a plurality of first mixers are arranged in the first intermediate transfer stations. The first intermediate transfer stations are used to place the materials taken out by the plurality of first reclaiming hopper turbines, which is convenient for the transportation and mixing of the materials.

[0036] A plurality of second intermediate transfer stations are arranged between the second reclaiming hopper turbine and the second ore mixing belt conveyor, and a plurality of second mixers are arranged in the second intermediate transfer stations. The second intermediate transfer stations are used to place the materials taken out by the plurality of second reclaiming hopper turbines, which is convenient for the transportation and mixing of the materials.

[0037] A high-quality ore blending method that takes into account the production balance of loading and unloading ships, including:

[0038] (1) When there is no ship unloading operation, the first set of ore mixing equipment is used for ore mixing operation. The bucket wheel excavator takes the goods from different stockpiles according to the ore mixing ratio, and then uses the belt conveyor to transport them to the predetermined stockpiles for storage through the ship unloader. The specific steps are as follows:

[0039] (1.1) The first reclaiming hopper turbine takes materials from different stockpiles according to the mixing ratio and sends the materials to the first mixing belt conveyor, where the materials are mixed while being transported;

[0040] (1.2) The first mixing belt conveyor transports the materials to the output belt conveyor, the output belt conveyor transports the materials to the wharf unloading line belt conveyor, the wharf unloading line belt conveyor transports the materials to the ship unloader, and finally the materials are transported to the first storage yard by the ship unloader for storage;

[0041] (2) When there is unloading operation, the second set of ore mixing equipment is used for ore mixing operation. The bucket wheel excavator takes the goods from different stockpiles according to the mixing ratio, and then uses the ship loader to transport them and conveys them to the predetermined stockpiles for storage via the belt conveyor. The steps are as follows:

[0042] (2.1) The second reclaiming hopper turbine takes materials from different stockpiles according to the mixing ratio and sends the materials to the second mixing belt conveyor, where the materials are mixed while being transported;

[0043] (2.2) The second mixing belt conveyor transports the materials to the ship loader, and the chute of the ship loader sends the materials into the conveying funnel, and then into the conveying belt conveyor through the conveying funnel, and finally sent to the second storage yard for storage through the output bucket wheel excavator.

[0044] The innovation of this application is that it can adapt to the actual situation of the port terminal. The overall equipment does not need to be fully equipped. Some equipment can borrow the existing equipment of the port terminal, and it will not affect the normal use of the port terminal equipment. The device and method provided by this application have been put into practical use, specifically in Lianyungang Xinsu Port Terminal Company. Some of the equipment borrows the existing equipment of Xinsu Port Terminal, such as ship loaders, ship unloaders, and transfer stations.

[0045] 1. Reference Figure 3 For the first set of ore-mixing equipment, two bucket wheel machines are used to pick up the goods according to the mixing ratio. After picking up the materials from different stockpiles, they are shipped through the loading process and the newly added BC15 belt conveyor (installed on the second floor of the 23# transfer station, the belt conveyor spans BC1C, BC1B and connects the loading line and BC1A, with a total length of 9 meters, which can move north and south with the trolley, has two workstations for loading and mixing, and can be controlled by the on-site operation box and remote central control) to the BC1A belt conveyor on the dock, and then through the unloading line A line and the bucket wheel machine to all stockpiles;

[0046] Effect: During the ore mixing process, the materials pass through many transfer stations, the materials are mixed evenly, and the quality is the best in China after being tested by professional organization SGS. The operating efficiency is greatly improved, and there is no need to use ship loaders, which reduces the use of large equipment and energy consumption. The stability of the entire process operation is greatly improved.

[0047] 2. Reference Figure 4 For the second set of ore blending equipment, a belt conveyor BC3C is added between the 2# transfer station and the 3# transfer station at the Xinsu Port Terminal. At the same time, a material dropping chute is added to the belt conveyor BC1C. Two bucket wheel excavators are used to take the goods according to the ore blending ratio. After taking the materials from different yards, they are sent to the ship loader through the loading process, BC1C belt conveyor, and the loader chute is used to drop the materials into the funnel above the BC1C belt conveyor and enter the unloading process BC2C, BC3C belt conveyor to the 1# bucket wheel excavator, and the materials are transported to the 1# yard;

[0048] Effect: During the ore mixing process, the materials pass through many transfer stations and are mixed evenly; the unloading line will not be occupied.

[0049] 3. In actual application, when there is ship unloading operation, the second set of ore mixing device is used; when there is no ship unloading operation, the first set of ore mixing device can be used;

[0050] Results achieved:

[0051] 1. Multiple mixing points: After mixing, the materials must pass through at least 9 mixing points, including 21# station, 22# station, 23# station, ship loader chute, 1# station, 2# station, 3# station, bucket wheel excavator hopper and the yard drop point, so that the materials are fully mixed before returning to the yard.

[0052] The shortest mixing process:

[0053] 2-7# bucket wheel excavator reclaims materials - mixing materials on the ship loading line - the ship loader guides the materials to the ship unloading line and returns to the yard through the 1# bucket wheel excavator. It needs to pass through: 6 transfer stations, ship loader chute, bucket wheel excavator hopper, yard material drop point, a total of 9 mixing points.

[0054] The longest mixing process:

[0055] 1-6# bucket wheel excavator reclaims materials - mixing materials on the ship loading line - the ship loader guides the materials to the ship unloading line and returns to the yard through the 7# bucket wheel excavator. It needs to pass through: 12 transfer stations, ship loader chute, bucket wheel excavator hopper. There are a total of 15 mixing points at the yard.

[0056] 2. Accurate metering equipment: 7 bucket wheel excavators are equipped with the most advanced mobile belt scale (angle compensation) from San Ai Company, which is composed of 8 sets of sensors. BC2A\2B\BC14 belt conveyors are all equipped with belt scales. The metering instruments installed in the above equipment are stable in operation and high in accuracy (2‰), providing strong metering guarantee for ore mixing operations or later shipment.

[0057] 3. Quality inspection of ore mixing operation: During the ore mixing operation, after at least 7 material drop points, the automatic sampling operation will be carried out at the 2# transfer station commodity inspection automatic sampling system. In addition, on-site sampling can be carried out at the place where the goods land, and the samples will be sent to the commodity inspection for sample preparation. The inspection and quarantine bureau will test the moisture and quality of the goods after ore mixing and issue corresponding test reports.

Claims

1. A high-quality ore mixing method that takes into account the production balance of loading and unloading ships, characterized by: The method uses a high-quality ore-mixing operation device that takes into account the production balance of loading and unloading ships to perform ore-mixing operations. The device includes two sets of ore-mixing devices. The first set of ore-mixing devices includes a first reclaiming hopper turbine, a first ore-mixing belt conveyor, an output belt conveyor, a wharf ship unloading line belt conveyor, a ship unloader and a first stockpile. At least two first reclaiming hopper turbines are provided. The input end of the first ore-mixing belt conveyor is connected to the output end of the first reclaiming hopper turbine, the input end of the output belt conveyor is connected to the output end of the first ore-mixing belt conveyor, the input end of the wharf ship unloading line belt conveyor is connected to the input end of the output belt conveyor, the input end of the ship unloader is connected to the output end of the wharf ship unloading line belt conveyor, and the first stockpile is provided on the output end side of the ship unloader. The second set of ore mixing device includes a second reclaiming hopper turbine, a second ore mixing belt conveyor, a ship loader, a conveying hopper, a conveying belt conveyor, an output bucket turbine and a second stockpile; at least two second reclaiming hopper turbines are provided, the input end of the second ore mixing belt conveyor is connected to the output end of the second reclaiming hopper turbine, the input end of the ship loader is connected to the output end of the second ore mixing belt conveyor, the input end of the conveying belt conveyor is connected to the output end of the ship loader, the output bucket turbine is connected to the output end of the conveying belt conveyor, and the second stockpile is provided at the output end side of the output bucket turbine; The method includes: S1. When there is no ship unloading operation, the first set of ore mixing equipment is used for ore mixing operation. The steps are as follows: S1.1, the first reclaiming hopper turbine reclaims materials from different stockpiles according to the mixing ratio, and sends the materials to the first mixing belt conveyor, where the materials are mixed while being transported; S1.2, the first mixing belt conveyor transports the materials to the output belt conveyor, the output belt conveyor transports the materials to the wharf unloading line belt conveyor, the wharf unloading line belt conveyor transports the materials to the ship unloader, and finally the materials are transported to the first storage yard by the ship unloader for storage; S2. When there is ship unloading operation, the second set of ore mixing equipment is used for ore mixing operation. The steps are as follows: S2.1, the second reclaiming hopper turbine takes materials from different stockpiles according to the mixing ratio, and sends the materials to the second mixing belt conveyor, where the materials are mixed while being transported; S2.2, the second mixing belt conveyor conveys the materials to the ship loader, and the chute of the ship loader sends the materials into the conveying funnel, and then into the conveying belt conveyor through the conveying funnel, and finally sent to the second storage yard for storage through the output bucket wheel excavator.

2. The high-quality ore mixing method taking into account the production balance of loading and unloading ships according to claim 1 is characterized in that: Belt scales are installed on the first reclaiming bucket wheel machine, the first ore mixing belt conveyor, the output belt conveyor, the wharf unloading line belt conveyor, the second reclaiming bucket wheel machine, the second ore mixing belt conveyor, the conveyor belt conveyor and the output bucket wheel machine.

3. The high-quality ore mixing method taking into account the production balance of loading and unloading ships according to claim 1 is characterized in that: The conveying funnel is arranged above the conveying belt conveyor.

4. The high-quality ore mixing method taking into account the production balance of loading and unloading ships according to claim 1 is characterized in that: Automatic sampling devices are also installed on the first ore mixing belt conveyor and the output bucket wheel conveyor.

5. The high-quality ore blending method taking into account the production balance of loading and unloading ships according to claim 1 is characterized in that: A plurality of first intermediate transfer stations are arranged between the first reclaiming hopper turbine and the first ore mixing belt conveyor, and a plurality of first mixers are arranged in the first intermediate transfer stations.

6. The high-quality ore blending method taking into account the production balance of loading and unloading ships according to claim 1 is characterized by: A plurality of second intermediate transfer stations are arranged between the second reclaiming hopper turbine and the second ore mixing belt conveyor, and a plurality of second mixers are arranged in the second intermediate transfer stations.

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