Automatic unloading device of bulk cargo ship

Abstract

The automatic unloading device comprises unloading assemblies in a cargo ship body, a cargo bin is arranged in the middle of the cargo ship body, the inner bottom of the cargo ship body is fixedly connected with a material guide block, a plurality of bin plates are arranged on the two sides of the cargo ship body, the other end of the cargo ship body is connected with the two inner side walls of the cargo bin, and the unloading assemblies are arranged in the middle of the upper end of the material guide block and the position of a ship head and used for unloading bulk cargoes in the cargo bin. The unloading assembly comprises a first spiral blade, a second spiral blade, a material guiding pipe, a discharging pipe and a driving motor, a material guiding groove is formed in the middle of the upper end of a material guiding block and rotationally connected with the first spiral blade, and the first driving motor at the stern drives the material guiding block to rotate through a rotating shaft; the other end of the channel penetrates out of the top end of the prow to be connected with a material guiding pipe, a second spiral blade is rotationally connected into the pipe, and a second driving motor at the top end of the prow drives a rotating shaft of the second driving motor. A discharging pipe is arranged on the outer wall of the material guiding pipe, and bulk cargoes are continuously conveyed and guided out. The utility model aims to provide the automatic discharging device which is efficient, anti-blocking, stable in structure and high in automation degree.

Description

Technical Field

[0001] This utility model relates to the technical field of unloading devices, specifically an automatic unloading device for bulk carriers. Background Technology

[0002] In the bulk carrier shipping industry, the efficiency and automation level of bulk cargo loading and unloading directly affect the economics and operational safety of ship operations. Traditional bulk carrier cargo unloading systems generally employ single-screw conveyors, hydraulic tippers, or gravity flow to unload bulk cargo. However, existing technologies suffer from the following technical limitations:

[0003] 1. Low unloading efficiency and prone to clogging: When conveying high-density or high-humidity bulk materials, single-screw conveyor structures are prone to material accumulation and clogging, requiring frequent shutdowns for cleaning, resulting in low unloading efficiency. In addition, a single conveying path is difficult to adapt to the rapid unloading requirements of large-tonnage cargo holds.

[0004] 2. Insufficient structural stability of the cargo hold: Traditional cargo hold bottom support structures are simple in design, and uneven stress during bulk loading can easily lead to deformation or collapse of the silo plates, affecting the uniformity of the unloading process. At the same time, the connection between the inner wall of the bulk cargo hold and the silo plates is mostly welding or simple overlapping, which is prone to structural fatigue after long-term use, resulting in high maintenance costs.

[0005] 3. Low level of automation: Existing cargo hatches mostly rely on manual operation, which is time-consuming and depends on the operator's experience, making it difficult to achieve fully automated operation. In addition, the unloading path is poorly matched with the cargo hold structure, which can easily lead to the accumulation of residual cargo, requiring manual cleaning.

[0006] 4. Insufficient integration of the unloading system: Traditional unloading devices are usually independently installed outside the cargo hold, occupying deck space and having poor coordination with the cargo hold structure. The layout of the twin-screw drive system in compact ships is difficult and prone to equipment interference problems.

[0007] To address the aforementioned technical deficiencies, this utility model proposes an automatic unloading device for bulk carriers featuring a double-helix conveying structure, a modular silo support system, and an automated hatch design. Utility Model Content

[0008] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide an automatic unloading device that is highly efficient, anti-clogging, structurally stable and highly automated.

[0009] The technical solution adopted by this utility model to achieve the above-mentioned objective is: an automatic unloading device for a bulk carrier, including an unloading assembly located inside the hull of the carrier. The unloading assembly is used to unload bulk cargo from the cargo hold. A cargo hold is provided in the middle of the hull of the carrier, and the cargo hold is used to load bulk cargo onto the carrier. A guide block is fixedly connected to the inner bottom surface of the cargo hold. Several hopper plates are respectively provided on both sides of the guide block. The hopper plates are respectively installed at an angle to the guide block to achieve... During bulk cargo loading and unloading, the bulk cargo is guided onto the guide block, and material is conveyed through the unloading assembly at the upper end of the guide block. The other end of the hopper plate is connected to the two inner side walls of the cargo hopper. Unloading assemblies are located at the upper middle part and the bow position of the guide block. The unloading assembly includes a first spiral blade, a second spiral blade, a guide pipe, a discharge pipe, a first drive motor, and a second drive motor. A guide trough is formed at the upper middle part of the guide block, and the first spiral blade is rotatably connected within the guide trough. A first drive motor is fixedly connected to one side of the stern of the cargo ship. The shaft of the first spiral blade passes through the stern and is connected to the first drive motor. In use, the first drive motor drives the first spiral blade to rotate, and the first spiral blade transports the bulk cargo in the cargo bin to the guide port. A guide channel is provided in the bow of the cargo ship. A guide port is opened on the inner wall of the cargo bin on one side of the guide channel. The guide port is connected to one end of the guide channel. The other end of the guide channel extends out from the top of the bow. A guide pipe is fixedly connected to the top of the bow of the cargo ship. One end of the guide pipe is connected to the guide channel. A second spiral blade is rotatably connected in the guide channel and the guide pipe. The shaft of the second spiral blade passes out of the guide pipe and is connected to the second drive motor. The second drive motor is fixedly connected to the end of the guide pipe. A discharge pipe is fixedly connected to one side of the outer wall of the guide pipe. The bulk cargo entering the guide port is transported along the guide channel and the guide pipe by the second spiral blade. Finally, the bulk cargo is discharged by the discharge pipe.

[0010] In the above technical solution, several reinforcing ribs are fixedly connected to the bottom of the material bins on both sides of the guide block. Support plates are fixedly connected to the upper ends of the reinforcing ribs. A guide groove rod is fixedly connected to the middle of the upper end of the support plate. Side guide grooves are opened on both sides of the bin plate. The side guide grooves are respectively fitted and connected to the guide groove rod.

[0011] In the above technical solution, the guide block is provided with a fixing groove on both sides, the two inner side walls of the material bin are fixedly connected with a support block, one end of the bin plate is fitted into the fixing groove, and the other end of the bin plate is connected to the support block.

[0012] In the above technical solution, the upper middle part of the hopper plate is fixedly connected to the cargo hopper by bolts with several supporting members.

[0013] In the above technical solution, the upper end of the material silo is provided with several silo openings, and the two sides of each silo opening are respectively rotatably connected with double hatches, and each double hatch is fixedly connected with a handle.

[0014] The beneficial effects of this utility model are:

[0015] 1. The double-helix conveyor structure significantly improves unloading efficiency and anti-clogging performance: The first helical blade in the middle of the guide block and the second helical blade in the guide channel and guide pipe form a relay conveying. The first helical blade concentrates and conveys the bulk materials in the cargo bin to the guide port, and the second helical blade then takes over and continuously pushes along the guide channel and guide pipe, avoiding the problem of material accumulation and blockage caused by excessive load on a single helix. At the same time, the parallel conveying path of the double helix shortens the residence time of bulk materials in the cargo bin, greatly improving the overall unloading efficiency.

[0016] 2. The composite support structure of the silo plate enhances load-bearing stability: The rigid frame composed of reinforcing ribs and support plates disperses the bulk cargo load, and the interlocking of the guide rods and the side guide grooves of the silo plate restricts the lateral displacement of the silo plate. Combined with the lap support of the support blocks on the other end of the silo plate and the bolt fixing of the support components, it effectively prevents the silo plate from deforming or collapsing due to uneven stress, significantly improves the uniform load-bearing capacity of the silo plate for bulk cargo, and extends the service life of the internal structure of the cargo hold.

[0017] 3. The automated hatch design optimizes the loading and unloading process: the double hatches at the top of the cargo bin can be opened and closed quickly with handles, and loading can be completed without manual climbing or complicated operations; the coordinated layout of the hatches and unloading components reduces manual intervention, and with the continuity of the double helix conveyor, semi-automatic control of the entire process from loading to unloading can be achieved, improving operational efficiency and safety.

[0018] 4. The compact integrated structure improves space utilization and adaptability: the guide block, double helix assembly and guide channel are all integrated inside the cargo hold body (midship guide block, bow guide pipe), avoiding the additional occupation of external deck space by traditional unloading devices; the double helix layout is highly compatible with the shape of the cargo hold, effectively utilizes the longitudinal space of the hull, reduces the risk of equipment interference, and is suitable for modular modification and upgrading of bulk carriers of different tonnages. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the longitudinal section of the present invention;

[0021] Figure 3 for Figure 2 Detailed structural diagram of part A1 in the middle;

[0022] Figure 4 for Figure 2 Detailed structural diagram of part A2 in the middle;

[0023] Figure 5 This is a cross-sectional view of the present invention.

[0024] Figure 6 This is a schematic diagram of the connection structure of the silo plate of this utility model.

[0025] In the diagram: 1. Cargo ship body, 2. Cargo bin, 3. Guide block, 4. Bin plate, 101. First spiral blade, 102. Second spiral blade, 103. Guide pipe, 104. Discharge pipe, 105. First drive motor, 106. Second drive motor, 107. Guide trough, 108. Guide channel, 109. Guide port, 201. Reinforcing rib, 202. Support plate, 203. Guide rod, 204. Side guide trough, 205. Fixing groove, 206. Support block, 207. Support component, 301. Bin opening, 302. Double hatch, 303. Handle. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] Please see Figure 1-6An automatic unloading device for a bulk carrier includes an unloading assembly located within the ship's hull 1. The unloading assembly unloads bulk cargo from a cargo bin 2. The cargo bin 2 is located in the middle of the ship's hull 1 and is used for loading bulk cargo. A guide block 3 is fixedly connected to the inner bottom surface of the cargo bin 2. Several bin plates 4 are respectively provided on both sides of the guide block 3. The bin plates 4 are installed at an angle to the guide block 3 to support the bulk cargo and guide it onto the guide block 3 during unloading. The material is then transported by the unloading assembly at the upper end of the guide block 3. The other end of the feed hopper plate 4 is connected to the two inner side walls of the cargo hopper 2. Unloading components are installed at the upper middle part of the guide block 3 and at the bow position. The unloading components include a first spiral blade 101, a second spiral blade 102, a guide pipe 103, a discharge pipe 104, a first drive motor 105, and a second drive motor 106. A guide trough 107 is opened at the upper middle part of the guide block 3, and the first spiral blade 101 is rotatably connected inside the guide trough 107. The first drive motor 105 is fixedly connected to one side of the stern of the cargo ship body 1. The shaft of the first spiral blade 101 passes through... After entering the stern, it is connected to the first drive motor 105. In use, the first drive motor 105 drives the first spiral blade 101 to rotate, and the first spiral blade 101 transports the bulk cargo in the cargo bin 2 to the guide port 109. A guide channel 108 is provided in the bow of the cargo ship body 1. A guide port 109 is opened on the inner wall of the cargo bin 2 on one side of the guide channel 107. The guide port 109 is connected to one end of the guide channel 108. The other end of the guide channel 108 extends out from the top of the bow. A guide pipe 103 is fixedly connected to the top of the bow of the cargo ship body 1. One end of the tube 103 is connected to the material guide channel 108. A second spiral blade 102 is rotatably connected inside the material guide channel 108 and the material guide tube 103. The shaft of the second spiral blade 102 passes through the material guide tube 103 and is connected to the second drive motor 106. The second drive motor 106 is fixedly connected to the end of the material guide tube 103. A discharge pipe 104 is fixedly connected to one side of the outer wall of the material guide tube 103. The bulk material entering the material guide port 109 is conveyed along the material guide channel 108 and the material guide tube 103 by the second spiral blade 102. Finally, the bulk material is discharged by the discharge pipe 104.

[0028] In the above technical solution, several reinforcing ribs 201 are fixedly connected to the bottom of the material bins 2 on both sides of the guide block 3. Support plates 202 are fixedly connected to the upper ends of the reinforcing ribs 201. Guide groove rods 203 are fixedly connected to the middle of the upper end of the support plates 202. Side guide grooves 204 are opened on both sides of the bin plate 4. The side guide grooves 204 are respectively fitted and connected to the guide groove rods 203. The two sides of the bin plate 4 are respectively overlapped and connected to the upper end of the support plates 202, which is used to facilitate the even installation of the bin plate 4 on the bottom of the material bin 2. At the same time, under the support of the support plates 202, the load-bearing capacity of the bin plate 4 for bulk materials is improved.

[0029] In the above technical solution, the guide block 3 is provided with a fixing groove 205 on both sides, and the two inner side walls of the material bin 2 are fixedly connected with a support block 206. One end of the bin plate 4 is fitted into the fixing groove 205, and the other end of the bin plate 4 is connected to the support block 206. This is also used to realize the laying and installation of the bin plate 4, while ensuring the inclined surface of the bin plate 4.

[0030] In the above technical solution, several support members 207 are fixedly connected to the upper middle part of the silo plate 4 and the cargo silo 2 by bolts, which are used to improve the installation stability of the silo plate 4 and improve the internal structural stability of the cargo silo 2.

[0031] In the above technical solution, the upper end of the cargo silo 2 is provided with several silo openings 301. The two sides of the silo openings 301 are respectively rotatably connected to the double doors 302. The double doors 302 are respectively fixedly connected to the handles 303. When in use, the double doors 302 are opened and closed by means of the handles 303. Bulk cargo is conveniently loaded into the bulk cargo silo through the silo openings 301.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic discharge apparatus for a bulk carrier, comprising a discharge assembly located within the body (1) of the carrier, characterised in that: The middle part of the cargo ship body (1) is provided with a cargo bin (2), the inner bottom surface of the cargo bin (2) is fixedly connected with a guide block (3), the two side edges of the guide block (3) are respectively provided with a plurality of bin plates (4), the other end of the bin plate (4) is connected with the two inner side walls of the cargo bin (2), the upper end of the middle part of the guide block (3) and the bow position are provided with a discharging assembly, the discharging assembly comprises a first spiral blade (101), a second spiral blade (102), a guide pipe (103), a discharge pipe (104), a first driving motor (105), a second driving motor (106), a guide groove (107) is formed in the upper end of the middle part of the guide block (3), the first spiral blade (101) is rotatably connected in the guide groove (107), the stern side of the cargo ship body (1) is fixedly connected with the first driving motor (105), the rotating shaft of the first spiral blade (101) penetrates into the stern and is connected with the first driving motor (105), a guide channel (108) is arranged in the bow of the cargo ship body (1), a guide port (109) is formed in the inner wall of the cargo bin (2) on one side of the guide groove (107), the guide port (109) is in communication with one end of the guide channel (108), the other end of the guide channel (108) penetrates out of the top end of the bow, and the top end of the bow of the cargo ship body (1) is fixedly connected with the guide pipe (103), one end of the guide pipe (103) is in communication with the guide channel (108), the second spiral blade (102) is rotatably connected in the guide channel (108) and the guide pipe (103), the rotating shaft of the second spiral blade (102) penetrates out of the guide pipe (103) and is connected with the second driving motor (106), and the second driving motor (106) is fixedly connected to the tail end of the guide pipe (103).

2. An automatic discharge apparatus for a bulk carrier according to claim 1, characterized in that: The bottom of the cargo bin (2) on the two sides of the guide block (3) is fixedly connected with a plurality of reinforcing ribs (201), the upper end of the reinforcing rib (201) is fixedly connected with a support plate (202), the upper end of the support plate (202) is fixedly connected with a guide groove rod (203), the two side edges of the bin plate (4) are respectively provided with a side guide groove (204), and the side guide groove (204) is respectively embeddedly connected on the guide groove rod (203).

3. An automatic discharge apparatus for a bulk carrier according to claim 1, characterized in that: The two sides of the guide block (3) are respectively provided with a fixed groove (205), the two inner side walls of the cargo bin (2) are respectively fixedly connected with a support block (206), one end of the bin plate (4) is embeddedly connected in the fixed groove (205), and the other end of the bin plate (4) is respectively lap-jointedly connected on the support block (206).

4. An automatic discharge apparatus for a bulk carrier according to claim 1, characterized in that: A plurality of support pieces (207) are fixedly connected between the upper end of the middle part of the bin plate (4) and the cargo bin (2) through bolts.

5. An automatic discharge apparatus for a bulk carrier according to claim 1, characterized in that: The upper end of the goods bunker (2) is provided with a plurality of bunker openings (301), and the two sides of each bunker opening (301) are rotatably connected with a pair of opening doors (302), and the opening doors (302) are fixedly connected with handles (303) respectively.

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