Dual-purpose dustproof unloading device for bulk cargo ship and bulk tanker

Abstract

The application provides a dual-purpose dustproof unloading device for filling bulk ships, which comprises a terminal chute, an unloading head and a dust collecting cover, further comprises a connecting cover, a stop mechanism and a dust returning pipe, and a dust collecting opening is arranged on the terminal chute; the unloading head is arranged on the terminal chute; the connecting cover is sleeved and fixed on the terminal chute, and the dust collecting opening is located in the connecting cover; the dust collecting cover is sleeved outside the connecting cover and can be lifted and moved relative to the connecting cover; the stop mechanism is arranged on the terminal chute and selectively closes the dust collecting opening; the dust returning pipe is arranged on the terminal chute and communicates with the terminal chute at one end, and a control valve is arranged on the dust returning pipe and is used for controlling the opening and closing of the dust returning pipe. The dual-purpose dustproof unloading device for filling bulk ships can realize quick switching between two modes through the lifting of the dust collecting cover, the opening and closing of the stop mechanism and the control valve, so as to adapt to the filling cement special ship and the bulk open ship, and manual disassembly and replacement of matched equipment are not needed, and the ship loading efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of port freight technology, and in particular to a dustproof unloading device for both filling and bulk cargo ships. Background Technology

[0002] Ship loaders are large bulk cargo handling machines used for loading materials onto ships at bulk terminals. A typical ship loader consists of a boom conveyor, transition conveyor, telescopic chute, tail car, traveling mechanism, gantry, tower, pitching mechanism, and slewing mechanism. The telescopic chute is a multi-section structure that can extend and retract to be close to the ship's hull for loading operations, reducing dust. A dust collection system is also installed on the ship loader, connected to the telescopic chute, to collect dust emitted during unloading. In recent years, cement-filling vessels have become increasingly popular due to their superior sealing and rainproof performance. Ship loaders must be adaptable to both open bulk carriers and cement-filling vessels.

[0003] For example, the "Environmentally Friendly Mobile Ship Loader for Loading Bulk Powder Materials" authorized announcement number CN212075736U mentions in its instruction manual (section 0032) that "the lower part of the double-layer lifting chute 1 is connected to either the bulk loading head 13 of a tanker ship or the bulk loading head 13 of a bulk ship, which are used for loading tanker ships and bulk ships respectively. The bulk loading head 13 of the tanker ship and the bulk loading head 13 of the bulk ship can be easily replaced." Traditional ship loaders are designed with a set of dust collection hood discharge ports for bulk ship unloading and a set of filling discharge ports for filling ship unloading at the bottom of the chute. During loading, the two sets of discharge ports need to be frequently replaced and disassembled to adapt to different ship types. The replacement requires manual operation, which affects the loading efficiency. At the same time, the dust remaining at the discharge port is easily inhaled into the body, causing great harm to the health of the operators. Summary of the Invention

[0004] In view of this, the present invention proposes a dustproof unloading device for both cement filling and bulk cargo ships, to replace the two sets of unloading ports on the traditional ship loader. By switching working modes, it can be adapted to cement filling ships and open bulk cargo ships, eliminating the need for manual unloading port replacement and improving the efficiency of ship loading.

[0005] The technical solution of this invention is implemented as follows: This invention provides a dustproof unloading device for both filling and bulk cargo ships, which includes an end chute, an unloading head, and a dust collection hood, and further includes a connecting hood, a stop mechanism, and a dust return pipe, wherein...

[0006] A dust collection port is provided on the end chute;

[0007] The discharge head is located on the end chute;

[0008] The connecting cover is fixed to the end chute, and the dust collection port is located inside the connecting cover;

[0009] The dust collection hood is fitted over the connecting hood and can be raised and lowered relative to the connecting hood;

[0010] The stop mechanism is installed on the end chute and selectively closes the dust collection port;

[0011] The dust return pipe is installed on the end chute, and one end is connected to the end chute. A control valve is installed on the dust return pipe to control the opening and closing of the dust return pipe.

[0012] When bulk materials are loaded onto the ship, the control valve closes, the dust collection hood descends, and the stop mechanism opens the dust collection port;

[0013] When the filling material is loaded onto the ship, the control valve opens, the other end of the dust return pipe is connected to the ship's exhaust port, the dust collection hood rises, and the stop mechanism closes the dust collection port.

[0014] Based on the above technical solutions, preferably, the stop mechanism includes a movable plate, which is slidably disposed on the end chute.

[0015] A further preferred embodiment includes a lifting guide rod, which is fixed inside the dust collection hood and used to push the movable plate to close the dust collection port.

[0016] Based on the above technical solutions, preferably, a lifting drive component is also included, which is installed on the dust collection hood and is used to drive the dust collection hood to lift.

[0017] Based on the above technical solutions, preferably, the dust collection hood is fixed with multiple guide members, which are in contact with the connecting hood and are used to guide the dust collection hood to move.

[0018] Based on the above technical solutions, preferably, a floating dustproof component is also included. The floating dustproof component is disposed between the end chute and the discharge head, and is used to connect the end chute and the discharge head, allowing them to move relative to each other.

[0019] More preferably, the floating dustproof assembly includes a soft cover and several steel cables, wherein,

[0020] A soft cover is installed between the end chute and the discharge head, and is connected and fixed to both the end chute and the discharge head respectively, in order to seal the gap between the end chute and the discharge head;

[0021] The two ends of the steel rope are connected to the end chute and the unloading head respectively, allowing the end chute and the unloading head to move relative to each other.

[0022] Based on the above technical solutions, preferably, the lifting drive assembly includes a reduction motor, a drive gear, and a rack, wherein...

[0023] The geared motor is fixed to the dust collection hood;

[0024] The drive gear is movably mounted on the dust collection hood and is connected to the output end of the geared motor.

[0025] The rack is fixed to the connecting cover, and its length direction is consistent with the movement direction of the dust collection cover. The rack meshes with the drive gear.

[0026] Based on the above technical solutions, preferably, a buffer component is also included, which is fixed inside the end chute and used to buffer the materials being loaded onto the ship.

[0027] A further preferred embodiment includes a stop member, which is fixed inside the discharge head to prevent the buffer member from contacting the discharge head.

[0028] The dustproof unloading device for both filling and bulk cargo ships of the present invention has the following advantages over the prior art:

[0029] (1) By lifting and lowering the dust collection hood, stopping mechanism and opening and closing of control valve, the bulk loading mode for loading powder materials on open bulk ships and the filling mode for loading powder materials on cement-filling ships can be realized, and the two modes can be quickly switched, so as to adapt to cement-filling ships and open bulk ships. There is no need for manual disassembly and replacement of supporting equipment, which improves the efficiency of loading work and prevents operators from inhaling dust during the replacement process.

[0030] (2) Set up a lifting guide rod. When the dust collection hood moves up, the lifting guide rod moves up synchronously with the dust collection hood. After moving up a certain distance, it contacts the boss and continues to move up. Through the lifting boss, the movable plate is pushed to the dust collection port, thereby closing the dust collection port. This setting eliminates the need for a separate opening and closing drive for the movable plate, saving production and control costs.

[0031] (3) Set up floating dustproof components so that the end chute and the unloading head can move relative to each other. When the unloading head swings slightly with the ship, it will not cause the end chute to move, thus avoiding the swinging motion from being transmitted to the telescopic chute and ensuring that the service life of the telescopic chute is not affected.

[0032] (4) A buffer is set up so that after the powder material enters the buffer through the end chute, it will hit the buffer table. Since the buffer table is concave in the middle, some material will remain inside. The falling material is buffered by the material feeding method to avoid excessive impact and large mechanical wear.

[0033] (5) By setting a stop, the unloading head can only swing horizontally relative to the end chute. When the unloading head floats with the ship, the situation of the buffer hitting the unloading head inside is avoided, which further improves the structural stability and service life. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the bulk loading mode of the dual-purpose dustproof unloading device for both filling and bulk cargo ships according to the present invention;

[0036] Figure 2 This is a schematic diagram of the filling mode of the dual-purpose dustproof unloading device for filling bulk cargo ships according to the present invention;

[0037] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0038] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point B in the diagram;

[0039] Figure 5 for Figure 1 Enlarged schematic diagram of the structure at point C;

[0040] Figure 6 This is a schematic diagram of the buffer component of the dual-purpose dustproof unloading device for filling and bulk cargo ships according to the present invention;

[0041] Figure 7 for Figure 6 DD section view;

[0042] Figure 8 This is a schematic diagram of the dust collection hood descending in the dual-purpose dustproof unloading device for both filling and bulk cargo ships of the present invention;

[0043] Figure 9 This is a schematic diagram of the dust collection hood rising in the dual-purpose dustproof unloading device for both filling and bulk cargo ships according to the present invention. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0045] like Figure 1-9As shown, the dustproof unloading device for both filling and bulk cargo ships of the present invention is installed on the telescopic chute of the ship loader. It connects to a cement filling ship or extends into an open bulk cargo ship to enable the ship loader to load powder materials. It includes an end chute 1, a discharge head 2 and a dust collection hood 3, as well as a connecting cover 4, a stop mechanism 5 and a dust return pipe 6.

[0046] The end chute 1 is the last section of the telescopic chute. The end chute 1 is cylindrical in shape and open at both ends. Multiple dust collection ports 101 are provided on the side wall of the end chute 1. The multiple dust collection ports 101 are distributed at equal angles around the axis of the end chute 1. When the ship loader is loading bulk open ships, the dust collection ports 101 are opened, and the dust collection system on the ship loader sucks away the loose dust in the telescopic chute. The dust collection ports 101 serve as the air intake part of the dust collection system during bulk loading. When loading cement-filling ships, the dust collection ports 101 must be closed to prevent outside air from entering the chute through the dust collection ports 101.

[0047] The unloading head 2 is the unloading docking joint for a cement-filling vessel. In this device, the unloading head 2 is also used as the unloading port for a bulk open vessel. The unloading head 2 is set on the end chute 1 and approaches the vessel through the telescopic movement of the ship loader's telescopic chute. If the vessel is a cement-filling vessel, the unloading head 2 is docked with its filling head. If it is a bulk open vessel, the unloading head 2 is lowered into the hold for loading operations.

[0048] The connecting cover 4 is cylindrical in shape, and its inner diameter is larger than the outer diameter of the end chute 1. The connecting cover 4 is fitted onto the end chute 1. The gap between the inner wall of the connecting cover 4 and the end chute 1 allows outside air to flow and enter the dust collection port 101. The upper end of the connecting cover 4 is welded and fixed to the end chute 1, and the connection is sealed. The other end of the connecting cover 4 is open, and the dust collection port 101 is located inside the connecting cover 4. Outside air can enter through the open end of the connecting cover 4.

[0049] The dust collection hood 3 is fitted outside the connecting hood 4 and can be raised and lowered relative to the connecting hood 4. A soft curtain is installed at its bottom. When loading bulk open ships, the dust collection hood 3 is lowered to the lowest point to reduce the external dust caused by bulk loading and unloading through the unloading head 2. When filling cement-filling ships, the dust collection hood 3 is raised to the outside of the connecting hood 4, so that the unloading head 2 extends out of the dust collection hood 3 for docking with the cement-filling ship, thus avoiding the dust collection hood 3 from obstructing the filling operation.

[0050] The stop mechanism 5 is installed on the end chute 1, and the number of stop mechanisms 5 is the same as the number of dust collection ports 101 installed on the end chute 1. The stop mechanism 5 and the dust collection port 101 correspond one-to-one. When filling, the stop mechanism 5 closes the dust collection port 101 to prevent outside air from entering the end chute 1. Conversely, when bulk filling is carried out, the stop mechanism 5 opens the dust collection port 101 to allow outside air to enter the end chute 1 and collect the loose dust in the end chute 1.

[0051] The dust return pipe 6 is a flexible hose fixed to the end chute 1, with one end connected to the inside of the end chute 1. The dust return pipe 6 is equipped with a control valve 61. When the ship loader docks with the cement-filling vessel for filling operations, the dust return pipe 6 is connected to the exhaust port of the cement-filling vessel, and the control valve 61 is opened. As the powdered material is gradually fed into the vessel, the internal air is gradually discharged through the exhaust port. The discharged air will enter the end chute 1 through the dust return pipe 6 and be recovered by the dust collection system of the ship loader. Conversely, when loading bulk open-top vessels, the control valve 61 is closed, and air cannot enter the end chute 1 through the dust return pipe 6. Air can only enter through the dust collection port 101 to avoid affecting the dust collection effect of the ship loader's dust collection system.

[0052] In other words, the dust-proof unloading device in this embodiment has two working modes: a bulk loading mode for loading powder materials onto open bulk carriers, and a filling mode for loading powder materials onto cement-filling vessels. In the bulk loading mode, the dust collection hood 3 moves down to the end of the connecting hood 4, the stop mechanism 5 opens, the control valve 61 closes, and the end chute 1, through the extension and retraction of the telescopic chute, allows the unloading head 2 to enter the ship's hold. The material enters the ship's hold through the end chute 1 and the unloading head 2. During this process, the ship loader's dust collection system removes dust from the dust collection hood 3. The loose dust is drawn in by negative pressure and enters the end chute 1 through the dust collection port 101. Finally, it flows upward and is recovered by the dust collection system. In the filling mode, the dust collection hood 3 moves upward relative to the connecting hood 4, so that part of the unloading head 2 extends out of the dust collection hood 3. After the unloading head 2 docks with the ship, the control valve 61 opens, and at this time the stop mechanism 5 is in the closed state. The powder material is loaded onto the ship in the form of filling. During the filling process, the air containing dust discharged from the ship will enter the end chute 1 through the dust return pipe 6 and be recovered by the ship loader dust collection system.

[0053] In this embodiment, the stop mechanism 5 includes a movable plate 51 and a slide rail for mounting the movable plate 51. The movable plate 51 is slidably mounted on the end chute 1 via the slide rail. Preferably, the sliding direction of the movable plate 51 is the same as the moving direction of the dust collection hood 3, so that the dust collection hood 3 can move synchronously with the movable plate 51. The movable plate 51 closes the dust collection port 101 by covering it, and opening the dust collection port 101 means leaving the dust collection port 101. The opening and closing action of the dust collection port 101 is realized by the sliding of the movable plate 51.

[0054] Specifically, a boss is provided on the movable plate 51, and a corresponding lifting guide rod 7 is fixed inside the dust collection hood 3. When the dust collection hood 3 moves upward, the lifting guide rod 7 moves upward synchronously with the dust collection hood 3. After moving up a certain distance, it contacts the boss and continues to move upward. Through the lifting boss, the movable plate 51 is pushed onto the dust collection port 101, thereby closing the dust collection port 101. This setting eliminates the need for a separate opening and closing drive for the movable plate 51, saving production and control costs. At the same time, it has good stability in working environments with a lot of dust. It should be noted that the number of lifting guide rods 7 must be consistent with the number of movable plates 51, and they must correspond one-to-one.

[0055] In a preferred embodiment, a connecting rope is also provided, with the two ends of the connecting rope connected to the lifting guide rod 7 and the movable plate 51, respectively. When the dust collection hood 3 moves down, in order to prevent the movable plate 51 from being stuck by dust and unable to slide open by gravity, the connecting rope pulls the movable plate 51 down to open it, thereby ensuring that the movable plate 51 can be opened when the dust collection hood 3 descends, and the dust collection hood 3 moves down to the lowest position. At the same time, after the movable plate 51 is opened, the distance between the lifting guide rod 7 and the movable plate 51 is the length of the connecting rope.

[0056] In this embodiment, a lifting drive assembly 8 is also provided. The lifting drive assembly 8 is installed on the dust collection hood 3. The lifting drive assembly 8 directly drives the dust collection hood 3 to perform lifting and lowering movements relative to the connecting hood 4, so that no manual operation or adjustment is required.

[0057] Specifically, the lifting drive assembly 8 includes a reduction motor 81, a drive gear 82, and a rack 83. The reduction motor 81 is fixed on the dust collection hood 3, the drive gear 82 is movably mounted on the dust collection hood 3 and is connected to the output end of the reduction motor 81. The rack 83 is fixed on the connecting cover 4, and its length direction is consistent with the movement direction of the dust collection hood 3. The rack 83 meshes with the drive gear 82. A small gear that meshes with the drive gear 82 is also provided on the output end of the reduction motor 81. The reduction motor 81 drives the drive gear 82 to rotate, causing the rack 83 to move relative to the connecting cover 4, thereby driving the dust collection hood 3 to move relative to the connecting cover 4, realizing the electric lifting of the dust collection hood 3.

[0058] As a preferred embodiment, since the geared motor 81 cannot be installed inside the dust collection hood 3, the traction force will combine with gravity during the lifting drive, resulting in significant mechanical wear between the connecting cover 4 and the dust collection hood 3. Therefore, multiple guide members 31 are fixed on the dust collection hood 3. The guide members 31 are arranged in a semi-tile shape and are divided into upper and lower groups, with at least four in each group, and are distributed around the axis of the dust collection hood 3. All guide members 31 are in contact with the connecting cover 4 and guide the dust collection hood 3 through dynamic friction, so that the dust collection hood 3 can perform stable lifting and lowering movements.

[0059] It should be noted that the gap between the connecting cover 4 and the dust collection cover 3 should not be too large. At the same time, a rubber seal can be installed at the gap to reduce the amount of air entering the dust collection cover 3 through the gap.

[0060] In actual loading operations, especially when filling cement on a dedicated cement-filling vessel, the unloading head 2 floats after docking with the ship. However, the telescopic chute does not have the corresponding floating capability, and prolonged displacement will damage the telescopic chute and affect its normal use. Therefore, in this embodiment, a floating dustproof component 9 is also provided. The floating dustproof component 9 is installed on the end chute 1 and the unloading head 2 to connect the end chute 1 and the unloading head 2, so that the end chute 1 and the unloading head 2 can move relative to each other. That is to say, when the unloading head 2 swings slightly with the ship, it will not cause the end chute 1 to move, thus avoiding the swaying motion from being transmitted to the telescopic chute and ensuring that the service life of the telescopic chute is not affected.

[0061] Specifically, the floating dustproof component 9 includes a soft cover 91 and several steel ropes 92. The soft cover 91 is disposed between the end chute 1 and the unloading head 2, and is connected and fixed to the end chute 1 and the unloading head 2 respectively. It is used to close the gap between the end chute 1 and the unloading head 2, and allows the end chute 1 and the unloading head 2 to move relative to each other. While moving relative to each other, the powder material can still enter the unloading head 2 through the end chute 1. Connecting seats are welded to the outside of the end chute 1 and the unloading head 2 respectively. The two ends of the steel ropes 92 are connected to the connecting seats of the end chute 1 and the unloading head 2 respectively, so that the end chute 1 and the unloading head 2 can move relative to each other, and the range of movement does not exceed the tension range of the steel ropes 92, ensuring the stability of the structure.

[0062] In a preferred embodiment, a buffer 10 is also provided. The buffer 10 is fixed inside the end chute 1. The powder material in the end chute 1 will first enter the interior of the buffer 10 and then flow into the discharge head 2. The buffer 10 is a frustum-shaped component with openings at the top and bottom, wider at the top and narrower at the bottom. A buffer platform is also provided inside, with a concave center. After the powder material enters the buffer 10 through the end chute 1, it will impact the buffer platform. Because the buffer platform is concave in the middle, some material will remain inside. The falling material is buffered by the material-pumping method to avoid excessive impact and large mechanical wear.

[0063] Because of the buffer 10, when the unloading head 2 floats with the ship, the buffer 10 may collide with the unloading head 2 from within. To avoid this direct collision between the buffer 10 and the unloading head 2, a stop 11 is also provided. The stop 11 is fixed inside the unloading head 2 and is arranged in a grid pattern with a small gap between it and the buffer 10. The stop 11 restricts the movement of the buffer 10 relative to the unloading head 2, thus greatly reducing the vertical range of motion of the unloading head 2. Therefore, the stop 11 also has the ability to prevent the unloading head 2 from moving vertically, so that the unloading head 2 can only swing horizontally relative to the end chute 1. Vertical floating can be achieved by the cooperation between the telescopic chute and the end chute 1, further improving structural stability. At the same time, it avoids the problem of insufficient overlap between the buffer 10 and the unloading head 2, which would affect the loading efficiency.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dustproof unloading device for both filling and bulk cargo ships, comprising an end chute (1), an unloading head (2), and a dust collection hood (3), characterized in that: It also includes a connecting cover (4), a stop mechanism (5), and a dust return pipe (6), wherein, A dust collection port (101) is provided on the end chute (1); The discharge head (2) is set on the end chute (1); The connecting cover (4) is fitted and fixed on the end chute (1), and the dust collection port (101) is located inside the connecting cover (4); The dust collection hood (3) is fitted over the outside of the connecting hood (4) and can be raised and lowered relative to the connecting hood (4); The stop mechanism (5) is set on the end chute (1) and selectively closes the dust collection port (101). The dust return pipe (6) is installed on the end chute (1) and one end is connected to the end chute (1). A control valve (61) is installed on the dust return pipe (6) to control the opening and closing of the dust return pipe (6). When bulk materials are loaded onto the ship, the control valve (61) closes, the dust collection hood (3) descends, and the stop mechanism (5) opens the dust collection port (101). When the filling material is loaded onto the ship, the control valve (61) opens, the other end of the dust return pipe (6) is connected to the ship's exhaust port, the dust collection hood (3) rises, and the stop mechanism (5) closes the dust collection port (101).

2. The dual-purpose dustproof unloading device for both filling and bulk cargo ships as described in claim 1, characterized in that: The stop mechanism (5) includes a movable plate (51) which is slidably disposed on the end chute (1).

3. The dual-purpose dustproof unloading device for both filling and bulk cargo ships as described in claim 2, characterized in that: It also includes a lifting guide rod (7), which is fixed inside the dust collection hood (3) and is used to push the movable plate (51) to close the dust collection port (101).

4. The dustproof unloading device for both filling and bulk cargo ships as described in claim 1, characterized in that: It also includes a lifting drive assembly (8), which is mounted on the dust collection hood (3) and is used to drive the dust collection hood (3) to lift.

5. The dual-purpose dustproof unloading device for both filling and bulk cargo ships as described in claim 1, characterized in that: Multiple guide members (31) are fixed on the dust collection hood (3). The guide members (31) are in contact with the connecting cover (4) and are used to guide the dust collection hood (3) to move.

6. The dustproof unloading device for both filling and bulk cargo ships as described in claim 1, characterized in that: It also includes a floating dustproof assembly (9), which is disposed on the end chute (1) and the discharge head (2) to connect the end chute (1) and the discharge head (2) and allow them to move relative to each other.

7. The dustproof unloading device for both filling and bulk cargo ships as described in claim 6, characterized in that: The floating dustproof assembly (9) includes a soft cover (91) and several steel cables (92), wherein, The soft cover (91) is set between the end chute (1) and the discharge head (2), and is connected and fixed to the end chute (1) and the discharge head (2) respectively, to seal the gap between the end chute (1) and the discharge head (2); The two ends of the steel rope (92) are connected to the end chute (1) and the unloading head (2) respectively, so that the end chute (1) and the unloading head (2) can move relative to each other.

8. The dustproof unloading device for both filling and bulk cargo ships as described in claim 4, characterized in that: The lifting drive assembly (8) includes a geared motor (81), a drive gear (82), and a rack (83), wherein, The geared motor (81) is fixed on the dust collection hood (3); The drive gear (82) is movably mounted on the dust collection hood (3) and is connected to the output end of the geared motor (81) for transmission. The rack (83) is fixed on the connecting cover (4) and its length direction is consistent with the movement direction of the dust collection cover (3). The rack (83) meshes with the drive gear (82).

9. The dustproof unloading device for both filling and bulk cargo ships as described in claim 1, characterized in that: It also includes a buffer (10), which is fixed inside the end chute (1) and is used to buffer the materials loaded on the ship.

10. The dual-purpose dustproof unloading device for both filling and bulk cargo ships as described in claim 9, characterized in that: It also includes a stop (11), which is fixed inside the discharge head (2) to prevent the buffer (10) from contacting the discharge head (2).

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