CN116462011A - Bulk cargo continuous ship unloader - Google Patents

Abstract

The invention relates to the technical field of ship unloaders, in particular to a bulk cargo continuous ship unloader. The horizontal arm frame is hinged to one end of the vertical arm frame. The conveying mechanism is arranged in the vertical arm frame and the horizontal arm frame. One end of the vertical spiral collection mechanism is provided with a feed port corresponding to the opening, and the other end is provided with a discharge port connected with the input end of the conveying mechanism, the output end of the conveying mechanism is connected with the discharge mechanism, and the dust suction mechanism is connected with the discharge mechanism to absorb the dust in the material. It solves the problem that the existing ship unloader has insufficient material supply capacity, which makes the ship unloader unloading efficiency low, and the problem that dust in the material transmission process easily pollutes the environment.

Description

A continuous bulk cargo unloader

technical field

The invention relates to the technical field of bulk cargo unloading, in particular to a bulk cargo continuous unloading machine.

Background technique

At present, five types of continuous bulk cargo unloaders, pneumatic type, entrainment type, corrugated sidewall type, spiral type and buried scraper type, are commonly used for continuous grain unloading. Among them, the pneumatic ship unloader has a light body and low cleaning capacity, but has high energy consumption per unit, high noise, restrictions on the size, viscosity, and humidity of the materials being transported, and a high grain damage rate, making it difficult to achieve an unloading efficiency of more than 1000t/h; the entrainment ship unloader has low energy consumption, light weight, and small material damage, but has a high cleaning capacity and is sensitive to foreign matter. If foreign matter with sharp edges is mixed, it is easy to cause damage to the conveyor belt; Lightweight and low energy consumption, but it is not suitable for conveying bulk materials and wet and viscous materials, and the maintenance cost is high; the screw ship unloader has strong adaptability to materials and high unloading efficiency, but the unit energy consumption is high and the grain damage rate is high; the buried scraper ship unloader has the advantages of high unloading efficiency, relatively low energy consumption, and easy use and maintenance, but it has high cleaning capacity, heavy weight, and poor material adaptability.

To sum up, the in-depth analysis of the existing continuous ship unloader shows that there is still a large room for technological innovation in the grain continuous ship unloader. For example, the existing patent application number is 201510025591.2, which discloses a ship unloader mechanical follow-up anti-wind and wave reclaiming system. When the screw reclaimer encounters hardened grain, it cannot feed normally, which reduces the unloading efficiency of the ship unloader. At the same time, during the grain unloading process, the dust generated is not cleaned, which is likely to pollute the environment of the port and affect the normal operation of other work in the port.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide a continuous bulk cargo unloader to solve the problem of insufficient material supply capacity or high operating resistance of the existing ship unloader, which makes the unloading efficiency of the ship unloader low or high energy consumption, to achieve continuous unloading with high efficiency and low energy consumption, and the problem that dust during material transmission is likely to pollute the environment.

In order to achieve the above-mentioned technical purpose, the present invention has taken the following technical solutions:

The invention provides a bulk cargo continuous ship unloader, comprising a vertical arm frame, a horizontal arm frame hinged to one end of the vertical arm frame, a horizontal spiral collecting mechanism and a vertical spiral collecting mechanism fixed at the other end of the vertical arm frame, a conveying mechanism arranged in the vertical arm frame and the horizontal arm frame, a material unloading mechanism, a door frame turntable structure and a dust suction mechanism, the middle part of the horizontal arm frame is hinged with the door frame turntable structure, the door frame turntable structure is rotationally connected with the top of the unloading mechanism, and the horizontal arm frame is connected to the door frame turntable A first telescopic member is hinged between the structures, and a second telescopic member is hinged between the horizontal arm frame and the vertical arm frame. The horizontal spiral material collecting mechanism is provided with an opening along the length direction perpendicular to the vertical spiral material collecting mechanism. The straight screw collecting mechanism is used to lift the material and transport it into the conveying mechanism, and the conveying mechanism is used to discharge the material to the discharge mechanism, and the dust suction mechanism is connected with the discharge mechanism to absorb the dust in the material.

In some embodiments, the horizontal spiral collecting mechanism includes a first driving member, a first rotating shaft, a first helical blade, and a material blocking member. The first driving member is fixedly connected to the side plate at the other end of the vertical boom, and the output end of the first driving member is fixedly connected to one end of the first rotating shaft. The first spiral blade is fixedly connected to the first rotating shaft. The opening is formed between the other side of the first helical blade, and the material is blocked by the material blocking member, which is used for the first driving member to drive the first helical blade to rotate and transport the material to the feeding port of the vertical helical material collecting mechanism.

In some embodiments, the material blocking member includes a baffle plate and a second driving member, the baffle plate is arranged between the side plate and one end of the vertical screw collecting mechanism, and the second driving member is fixed on the other end of the vertical arm and connected to the baffle plate.

In some embodiments, the baffle is a semi-arc-shaped baffle, and the baffle is rotatably arranged between the side plate and one end of the vertical screw collecting mechanism, the baffle is provided with an arc-shaped rack, and the output end of the second driving member is fixed with a rotating gear meshing with the arc-shaped rack.

In some embodiments, the vertical spiral material collection mechanism includes a feed tube, a second rotating shaft, a second helical blade, and a third driving member. The side wall at one end of the feeding tube is provided with a feed inlet, the third driving member is fixed at the other end of the feeding tube, the second rotating shaft is arranged in the feeding tube and one end is fixedly connected to the output end of the third driving member, the second spiral blade is fixed on the second rotating shaft, and the side wall at the other end of the feeding tube is provided with a discharge port.

In some embodiments, the vertical spiral material collection mechanism further includes a third spiral blade, the third spiral blade is fixed on the second rotating shaft, and the third spiral blade is located above the second spiral blade, and the spiral direction of the third spiral blade is opposite to that of the second spiral blade.

In some embodiments, the conveying mechanism includes a vertical sealed casing fixed in the vertical arm frame, a horizontal sealed casing fixed in the horizontal arm frame, a bottom roller rotatably arranged in the vertical sealed casing, a head roller rotatably arranged in the horizontal sealed casing, a sidewall conveyor belt, and a fourth driving member. A head sealing cover is connected between the vertical sealed casing and the horizontal sealed casing. The sidewall conveyor belt is rotatably connected between the bottom roller and the head roller, and the fourth driving part is fixed on the horizontal arm frame. and the output end is fixedly connected with the rotating shaft of the head drum, the material receiving port on the vertical sealing case is connected with the discharge port of the vertical spiral collecting mechanism, the discharge port on the horizontal sealing case is connected with the discharging mechanism, and the vertical sealing case, the horizontal sealing case and the head sealing case are provided with a plurality of supporting rollers supporting the sidewall bucket conveyor belt.

In some embodiments, the head sealing cover includes a section of vertical arm sealing casing, a section of horizontal arm sealing casing and at least one movable casing. A section of the vertical arm sealing casing is connected to the vertical sealing casing, a section of the horizontal arm sealing casing is connected to the horizontal sealing casing, and the vertical arm sealing casing is also rotatably connected to the horizontal arm sealing casing via a pin shaft. A passage is formed inside the vertical arm sealing casing and the horizontal arm sealing casing, and there is a Open the gap of the channel, at least one movable case is movably connected in the gap between the vertical arm sealing case and the horizontal arm sealing case via the pin shaft, when the vertical arm sealing case and/or the horizontal arm sealing case rotate around the pin shaft, at least one of the movable cases can close the gap of the passage.

In some embodiments, the movable casing is fan-shaped as a whole, one side of the vertical arm sealing casing and the horizontal arm sealing casing are respectively provided with a first fan-shaped casing and a second fan-shaped casing movably connected with the movable casing, one side of the movable casing extends to the inside of the first fan-shaped casing, a first limiting plate is arranged on one side of the movable casing, a first bar-shaped plate that can conflict with the first limiting plate is arranged inside the first fan-shaped casing, and the second fan-shaped casing extends to the other side of the movable casing. Inside, the second fan-shaped cover is provided with a second limiting plate, and the other side of the movable cover is provided with a second bar-shaped plate that can interfere with the second limiting plate.

In some embodiments, a mobile vehicle body is also included, and the unloading mechanism and the dust suction mechanism are both arranged on the mobile vehicle body.

Compared with the prior art, the present invention provides a continuous ship unloader for bulk cargo, which is hinged at one end of the horizontal arm frame and the vertical arm frame. The horizontal spiral collecting mechanism and the vertical spiral collecting mechanism are fixed at the other end of the vertical arm frame. There is an opening in the length direction of the mechanism, and one end of the vertical spiral collecting mechanism is provided with a feed port corresponding to the opening, and the other end is provided with a discharge port connected to the input end of the conveying mechanism. The feeding capacity of the straight screw collection mechanism improves the working efficiency of the ship unloader. At the same time, the dust suction mechanism can absorb the dust generated during material transmission to ensure the cleanliness of the port environment.

Description of drawings

Fig. 1 is the structural representation of a kind of bulk cargo continuous ship unloader provided by the present invention;

Fig. 2 is the enlarged schematic view of A in Fig. 1;

Fig. 3 is a schematic diagram of a mechanism in which the horizontal spiral collecting mechanism of the present invention cooperates with the vertical spiral collecting mechanism;

Fig. 4 is the enlarged schematic view of B in Fig. 3;

Fig. 5 is the front view of the cooperation of the horizontal spiral collecting mechanism and the vertical spiral collecting mechanism of the present invention;

Fig. 6 is a schematic diagram of the mechanism of the head sealing cover of the present invention;

Fig. 7 is a sectional view of the head sealing cover of the present invention;

FIG. 8 is an enlarged schematic view of C in FIG. 7 .

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Referring to Fig. 1 to Fig. 8, the present invention provides a bulk cargo continuous ship unloader. The ship unloader is mainly used for unloading bulk materials in the port. It overcomes the problems of insufficient material supply capacity of the existing ship unloader, low unloading efficiency of the ship unloader, and easy pollution of the environment by dust during material transmission.

It should be noted that the ship unloader of the present invention is used for but not limited to grain unloading, and can also be applied to other materials that need to be unloaded. The principle that the ship unloader is applied to unloading its materials is substantially the same as the principle applied to unloading grain, and will not be repeated here.

In this specific embodiment, a bulk cargo continuous ship unloader comprises a vertical arm frame 1, a horizontal arm frame 2 hinged to one end of the vertical arm frame 1, a horizontal spiral collecting mechanism 3 and a vertical spiral collecting mechanism 4 fixed on the other end of the vertical arm frame 1, a conveying mechanism 5 arranged in the vertical arm frame 1 and the horizontal arm frame 2, a discharge mechanism 6, a door frame turntable structure and a dust suction mechanism 7. The top of mechanism 6 is rotatably connected; the first telescopic member 8 is hinged between the horizontal arm frame 2 and the gantry turntable structure; the second telescopic member 9 is hinged between the horizontal arm frame 2 and the vertical arm frame 1; The end is connected with the discharge mechanism 6, and the horizontal spiral collection mechanism 3 can be used to push the material to the feed port 4a of the vertical spiral collection mechanism 4. The vertical spiral collection mechanism 4 is used to lift the material and transmit it to the conveying mechanism 5. The conveying mechanism 5 is used to discharge the material to the discharge mechanism 6. The dust suction mechanism 7 communicates with the discharge mechanism 6 to absorb dust in the material.

In this specific embodiment, the horizontal screw collecting mechanism 3 includes a first driving member 31, a first rotating shaft, a first screw blade 33 and a material blocking member 34, the first driving member 31 is fixedly connected to the side plate 1a at the other end of the vertical arm frame 1, and the output end of the first driving member 31 is fixedly connected to one end of the first rotating shaft, the first spiral blade 33 is fixedly connected to the first rotating shaft 32, and the other end of the first rotating shaft 32 corresponds to the feed port 4a at one end of the vertical spiral collecting mechanism 4, The stopper 34 is arranged on one side of the first helical blade 33 along the length direction of the first rotating shaft 32, the opening 3a is formed between the other side of the first helical blade 33, and the material is blocked through the stopper 34, and the first driving member 31 drives the first helical blade 33 to rotate to transport the material to the feed port 4a of the vertical spiral collecting mechanism 4.

When the ship unloader is in use, it is necessary to extend the horizontal screw collecting mechanism 3 into the cabin (not shown in the figure). Grain is accumulated in the cabin storehouse. The first telescopic part 8 can drive the horizontal arm frame 2 to look up and down. Drive the first rotating shaft to rotate, and the first helical blade 33 can axially transport and press the grain into the feeding port 4a of the vertical helical collecting mechanism 4 .

It should be noted that the blocking member 34 is not limited to a certain specific structure, but can only block the material, ensuring that the first driving member 31 drives the first helical blade 33 to rotate and transport the material to the feed port 4a of the vertical screw collecting mechanism 4.

In this specific embodiment, the material blocking member 34 includes a baffle plate 341 and a second driving member 342, the baffle plate 341 is arranged between the side plate 1a and one end of the vertical screw collecting mechanism 4, and the second driving member 342 is fixed on the other end of the vertical arm frame 1 and connected to the baffle plate 341.

Further, the baffle plate 341 is a semi-arc-shaped baffle plate, and the baffle plate 341 is rotatably arranged between the side plate 1a and one end of the vertical spiral collecting mechanism 4, the baffle plate 341 is provided with an arc-shaped rack 343, and the output end of the second driving member 342 is fixedly provided with a rotating gear 344 meshing with the arc-shaped rack 343.

On the basis of the above solution, extension plates 340 are provided on both sides of the baffle plate 341 , and the width between the two extension plates 340 away from the opening 3 a is set to decrease and increase. Specifically, when the second driving member 342 drives the baffle plate 341 to rotate around the first rotation axis 22 , the extension plate 340 can be inserted into the material in the cabin to guide the material.

In this specific embodiment, the vertical spiral collecting mechanism 4 includes a feed pipe 41, a second rotating shaft 42, a second helical blade 43, and a third drive member 44. The side wall at one end of the feed pipe 41 is provided with a feed port 4a, and the third drive member 44 is fixed at the other end of the feed pipe 41. The second rotating shaft 42 is arranged in the feed pipe 41 and one end is fixedly connected to the output end of the third drive member 44. On the side wall of the other end of the material guiding pipe 41 is provided with a material outlet 4b.

It should be noted that when the material enters the material inlet 4a, the second helical blade 43 is driven to rotate by the third driving member 44, so that the material can be lifted and output to the conveying mechanism 5 from the material outlet 4b on the side wall at the other end of the material guide pipe 41.

On the basis of the above scheme, the vertical spiral material collection mechanism 4 also includes a third helical blade 45, the third helical blade 45 is fixed on the second rotating shaft 42, and the third helical blade 45 is positioned above the second helical blade 43, and the helical direction of the third helical blade 45 is opposite to that of the second helical blade 43.

It should be noted that the helical direction of the third helical blade 45 is set opposite to that of the second helical blade 43 , so that the material conveyed to one end of the material guide pipe 41 changes in the direction of transmission, and is convenient for output from the discharge port 4 b.

In this specific embodiment, the conveying mechanism 5 includes a vertical sealing case 51 fixed in the vertical arm frame 1, a horizontal sealing case 52 fixed in the horizontal arm frame 2, a bottom roller 53 rotatably arranged in the vertical sealing case 51, a head roller 54 rotating in the horizontal sealing case 52, a sidewall bucket conveyor belt 55, a head sealing case 56 and a fourth driving member. A head sealing case 56 is connected between the vertical sealing case 51 and the horizontal sealing case 52 The sidewall bucket conveyor belt 55 is rotatably connected between the bottom roller 53 and the head roller 54, the fourth driving member is fixed on the horizontal arm frame, and the output end is fixedly connected to the rotating shaft of the head roller 54, the material receiving port on the vertical sealing case 51 is connected with the discharge port 4b of the vertical spiral collecting mechanism 4, the discharge port on the horizontal sealing case 52 is connected with the discharge mechanism 6, and the vertical sealing case 51, the horizontal sealing case 52 and the head sealing A plurality of idler rollers 58 for supporting the sidewall bucket conveyor belt 55 are disposed inside the cover 56 .

It should be noted that the head sealing cover 56 can seal the connection between the vertical sealing cover 51 and the horizontal sealing cover 52, which is different from the traditional connection method using the bellows, the bellows cannot realize the vertical jib 1 swinging inward, and when the vertical jib 1 and the horizontal jib 2 swing, the bellows are easily stuck into the sidewall bucket conveyor belt 55, causing damage to the ship unloader.

In this specific embodiment, the head sealing cover 56 includes a vertical arm sealing cover 561, a horizontal arm sealing cover 562 and at least one movable cover 563, the vertical arm sealing cover 561 is connected with the vertical sealing cover 51, the horizontal arm sealing cover 562 is connected with the horizontal sealing cover 52, and the vertical arm sealing cover 561 is also rotatably connected with the horizontal arm sealing cover 562 via a pin shaft, the vertical arm sealing cover 561 and the horizontal arm sealing cover 562 are rotatably connected. A channel is formed inside the horizontal arm sealing case 562, and there is a gap opening the channel between the vertical arm sealing case and the horizontal arm sealing case. At least one movable case 563 is movably connected to the gap between the vertical arm sealing case and the horizontal arm sealing case through the pin shaft.

Specifically, the movable casing 563 is fan-shaped as a whole, and one side of the vertical arm sealing casing and the horizontal arm sealing casing are respectively provided with a first fan-shaped casing 564 and a second fan-shaped casing 565 which are movably connected with the movable casing 563. 56a conflicts with the first strip-shaped plate 56b, the second fan-shaped cover 565 extends to the inside of the other side of the movable case 563, the second sector-shaped cover 565 is provided with a second limiting plate 56c, and the other side of the movable case 563 is provided with a second strip-shaped plate 56d that can interfere with the second limiting plate 56c.

On the basis of the above solution, the other side of the movable cover 563 is provided with a limiting protrusion 560 that can interfere with the first strip plate 56b.

In this specific embodiment, the other side of the vertical arm sealing case 561 and the horizontal arm sealing case 562 are provided with arc segments, the horizontal arm sealing case 562 slides and extends to the inside of the vertical arm sealing case 561, the other side of the horizontal arm sealing case 562 is provided with a third limiting plate 567, and the other side of the vertical arm sealing case 561 is provided with a third strip plate 568 which can be in conflict with the third limiting plate 567.

It should be noted that when the first strip-shaped plate 56b is in conflict with the limiting protrusion 560, the vertical sealing case 51 and the horizontal sealing case 52 reach the inward swing limit; in this specific embodiment, the maximum inward swing angle between the vertical sealing case 51 and the horizontal sealing case 52 is 20°. The maximum swing-out angle between the shell 51 and the horizontal sealing case 52 is 70°.

In this specific embodiment, the first strip-shaped plate 56b, the limit protrusion 560, the second strip-shaped plate 56d and the third strip-shaped plate 568 are provided with rubber gaskets, which can reduce the impact force when the vertical sealing case 51 and the horizontal sealing case 52 swing.

In addition, idler rollers 58 are arranged in the straight arm sealing enclosure 561 and the horizontal arm sealing enclosure 562 , and sealing washers are arranged at positions corresponding to the idler rollers, which can further improve the sealing performance of the sealing enclosures.

In this specific embodiment, a mobile vehicle body 10 is also included, and the unloading mechanism 6 and the dust suction mechanism 7 are both arranged on the mobile vehicle body 10 . It should be noted that the unloading mechanism 6 includes a material cylinder 61 and a conveying device 62. The material cylinder 61 is provided with a gantry turntable structure 63 for rotation. The middle part of the horizontal arm frame 2 is hinged to the gantry turntable structure 63, and the other end of the horizontal arm frame 2 is provided with a counterweight.

In this specific embodiment, the dust suction mechanism 7 is not limited to a certain specific structure, the dust suction mechanism 7 is connected to the barrel 61, and it only needs to be able to absorb the dust in the grain.

In this specific embodiment, the vertical sealing casing 51 and the horizontal sealing casing 52 are connected through the head sealing casing 56, which can ensure the sealing performance of the conveying mechanism 5 and avoid the situation of environmental pollution caused by the flying dust in the grain.

Compared with the prior art, the present invention provides a continuous ship unloader for bulk cargo, which is hinged at one end of the horizontal arm frame and the vertical arm frame. The horizontal spiral collecting mechanism and the vertical spiral collecting mechanism are fixed at the other end of the vertical arm frame. There is an opening in the length direction of the mechanism, and one end of the vertical spiral collecting mechanism is provided with a feed port corresponding to the opening, and the other end is provided with a discharge port connected with the input end of the conveying mechanism. The feeding capacity of the screw collecting mechanism improves the working efficiency of the ship unloader. At the same time, the dust suction mechanism can absorb the dust generated during material transmission to ensure the cleanliness of the port environment.

The specific embodiments of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and modifications made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims (10)

1. A continuous ship unloader for bulk cargo, characterized in that it comprises a vertical arm frame, a horizontal arm frame hinged to one end of the vertical arm frame, a horizontal spiral collecting mechanism and a vertical spiral collecting mechanism fixed at the other end of the vertical arm frame, a conveying mechanism, a discharge mechanism, a door frame turntable structure and a dust suction mechanism arranged in the vertical arm frame and the horizontal arm frame. A first telescopic piece is hinged between the frame turntable structure, a second telescopic piece is hinged between the horizontal arm frame and the vertical arm frame, and the horizontal spiral collecting mechanism is provided with an opening along the length direction perpendicular to the vertical spiral collecting mechanism. One end of the vertical spiral collecting mechanism is provided with a feed port corresponding to the opening, and the other end is provided with a discharge port connected to the input end of the conveying mechanism. The output end of the conveying mechanism is connected to the discharge mechanism. , the vertical spiral collecting mechanism is used to lift the material and transport it into the conveying mechanism, the conveying mechanism is used to discharge the material to the discharging mechanism, and the dust suction mechanism is connected with the discharging mechanism to absorb the dust in the material. 2. A bulk cargo continuous ship unloader according to claim 1, wherein the horizontal spiral collecting mechanism comprises a first driving member, a first rotating shaft, a first helical blade and a material retaining member, the first driving member is fixedly connected to the side plate at the other end of the vertical boom, and the output end of the first driving member is fixedly connected to one end of the first rotating shaft, the first spiral blade is fixedly connected to the first rotating shaft, the other end of the first rotating shaft corresponds to the feed port at one end of the vertical spiral collecting mechanism, and the material retaining member is along the direction of the first rotating shaft The length direction is set on one side of the first helical blade, and the material blocking member is arranged between the other side of the first helical blade to form the opening, the material is blocked through the material blocking member, and the first driving member drives the first helical blade to rotate to transport the material to the feed inlet of the vertical spiral material collecting mechanism. 3. A continuous ship unloader for bulk cargo according to claim 2, wherein the blocking member comprises a baffle and a second driving member, the baffle is arranged between the side plate and one end of the vertical spiral collecting mechanism, and the second driving member is fixed on the other end of the vertical arm and connected to the baffle. 4. A bulk cargo continuous ship unloader according to claim 3, characterized in that the baffle is a semi-arc-shaped baffle, the baffle is rotatably arranged between the side plate and one end of the vertical spiral collecting mechanism, the baffle is provided with an arc-shaped rack, and the output end of the second driving member is fixedly provided with a rotating gear meshing with the arc-shaped rack. 5. A kind of continuous ship unloader for bulk cargo according to claim 1, wherein the vertical spiral collecting mechanism comprises a feed pipe, a second rotating shaft, a second helical blade and a third drive member, the side wall at one end of the feed pipe is provided with a feed inlet, the third drive member is fixed at the other end of the feed pipe, the second rotating shaft is arranged in the feed pipe and one end is fixedly connected to the output end of the third drive member, the second spiral blade is fixed on the second rotating shaft, and the other end side wall of the feed pipe is provided with a Outlet. 6. The continuous ship unloader for bulk cargo according to claim 5, wherein the vertical spiral material collection mechanism also includes a third spiral blade, the third spiral blade is fixed on the second rotating shaft, and the third spiral blade is located above the second spiral blade, and the spiral direction of the third spiral blade is opposite to that of the second spiral blade. 7. The continuous ship unloader for bulk cargo according to claim 1, wherein the conveying mechanism comprises a vertical sealing casing fixed in the vertical arm frame, a horizontal sealing casing fixed in the horizontal arm frame, a bottom roller rotatably arranged in the vertical sealing casing, a head roller rotatably arranged in the horizontal sealing casing, a sidewall bucket conveyor belt and a fourth driving member, a head sealing cover is connected between the vertical sealing casing and the horizontal sealing casing, and the sidewall bucket conveyor belt is rotatably connected to the bottom roller and the fourth driving member. Between the head rollers, the fourth driving member is fixed on the horizontal arm frame, and the output end is fixedly connected with the rotating shaft of the head roller. The material receiving port on the vertical sealing case is connected with the discharge port of the vertical spiral collecting mechanism, the discharge port on the horizontal sealing case is connected with the discharging mechanism, and the vertical sealing case, the horizontal sealing case and the head sealing case are provided with a plurality of rollers for supporting the sidewall bucket conveyor belt. 8. A bulk cargo continuous ship unloader according to claim 7, wherein the head sealing cover comprises a vertical arm sealing cover, a horizontal arm sealing cover and at least one movable cover, a section of the vertical arm sealing cover is connected to the vertical sealing cover, a section of the horizontal arm sealing cover is connected to the horizontal sealing cover, and the vertical arm sealing cover is also rotatably connected to the horizontal arm sealing cover via a pin shaft, and a passage is formed inside the vertical arm sealing cover and the horizontal arm sealing cover. There is a gap opening the passage between the vertical arm sealing case and the horizontal arm sealing case, at least one movable case is movably connected to the gap between the vertical arm sealing case and the horizontal arm sealing case via the pin shaft, when the vertical arm sealing case and/or the horizontal arm sealing case rotate around the pin shaft, at least one of the movable cases can close the gap of the passage. 9. A bulk cargo continuous ship unloader according to claim 8, characterized in that the movable casing is in the shape of a fan as a whole, and one side of the vertical arm sealing casing and the horizontal arm sealing casing are respectively provided with a first fan-shaped cover and a second fan-shaped casing movably connected with the movable casing, one side of the movable casing extends to the inside of the first fan-shaped casing, one side of the movable casing is provided with a first limiting plate, and the inside of the first fan-shaped casing is provided with a first strip plate that can be in conflict with the first limiting plate, The second fan-shaped cover extends to the inside of the other side of the movable case, the second fan-shaped cover is provided with a second limiting plate, and the other side of the movable case is provided with a second bar-shaped plate that can interfere with the second limiting plate. 10. A continuous ship unloader for bulk cargo according to claim 1, characterized in that it further comprises a mobile vehicle body, and the unloading mechanism and the dust suction mechanism are both arranged on the mobile vehicle body.