Double-tower spiral ship unloading conveyor
By using a combination of dust suction fans, barrier screens, and cleaning scrapers in a twin-tower screw ship unloading conveyor, the problem of dust entering the sealing gap is solved, the sealing performance and safety are improved, the equipment life is extended, and the dust collection and treatment efficiency is increased.
Patent Information
- Application Number
- CN202511044699.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-29
- Publication Date
- 2025-09-16
AI Technical Summary
During the material conveying process of the twin-tower spiral ship unloading conveyor, dust can easily enter the sealing gap and accelerate the wear of the seals, resulting in a decrease in sealing performance, and the dust scattering causes air pollution.
The dust collecting fan is used to actively absorb dust, and the dust is blocked by the dust blocking mesh plate and the material mesh plate. The dust is scraped off by the cleaning scraper and collected by the dust collecting box to reduce the dust from entering the dust collecting fan and the sealing gap.
It effectively reduces dust from entering the sealing gap, reduces seal wear, improves sealing performance, enhances operating safety, prevents dust from flying, extends equipment life, and improves dust collection and processing efficiency.
Smart Images

Figure CN120646570A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of ship unloading conveyors, in particular to a double-tower spiral ship unloading conveyor. Background Art
[0002] A twin-tower screw conveyor is a device used for bulk material unloading operations. It is usually composed of two parallel screw conveyor towers. Each screw conveyor tower contains a screw shaft and screw blades. The screw shaft is driven to rotate by a drive device, so that the material is lifted and transported upward along the conveyor tower under the push of the screw blades. In addition, it also includes components such as the feed port, discharge port, sealing structure, and bracket.
[0003] The twin-tower spiral ship unloading conveyor has the advantages of high conveying efficiency, compact structure, small space occupation, good sealing and stable operation. When conveying materials, the dust in the materials may enter the sealing gap, accelerate the wear of the seals, and cause the sealing performance to deteriorate. At the same time, the dust will fly into the air and cause pollution. Summary of the Invention
[0004] The purpose of the present invention is to provide a twin-tower spiral ship unloading conveyor to solve the problem that the dust in the material may enter the sealing gap when the material is conveyed, accelerate the wear of the seal, cause the sealing performance to deteriorate, and at the same time the dust will fly into the air and cause pollution, in order to solve the problem that the twin-tower spiral ship unloading conveyor has the advantages of high conveying efficiency, compact structure, small space occupation, good sealing and stable operation.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a double-tower spiral ship unloading conveyor, comprising a first tower and a second tower, a bridge spiral tube is provided in the middle of the first tower and the second tower, a first parallel spiral tube is provided at one end of the first tower, and a second parallel spiral tube is provided at one end of the second tower, a feed pipe is fixedly installed at the bottom end of the first parallel spiral tube, a discharge pipe is fixedly installed at the bottom end of the second parallel spiral tube, a dust collection box is fixedly installed at the bottom end of the feed pipe, and a mounting seat is fixedly installed at the top of the dust collection box, the mounting seat is fixedly installed to the bottom end of the feed pipe, a dust collection fan is fixedly installed inside the dust collection box, a dust-blocking mesh plate is slidably connected inside the dust collection box, and a material-blocking mesh plate is slidably connected inside the dust collection box.
[0006] As a further solution of the present invention: the bottom ends of the dust-blocking mesh plate and the material-blocking mesh plate are fixedly mounted with a snap-in slider for installation, and a snap-in groove is provided inside the dust collector, and the snap-in groove is adapted to the snap-in slider.
[0007] As a further solution of the present invention: a fixing block is fixedly installed at one end of the dust barrier mesh plate and the material barrier mesh plate, and the fixing blocks are symmetrically fixedly installed at both ends of the dust barrier mesh plate and the material barrier mesh plate, and the fixing blocks are threadedly connected to the dust collection box.
[0008] As a further solution of the present invention: sliding blocks are symmetrically slidably connected inside the dust collector box, and two groups of sliding blocks are respectively slidably connected to one end of the dust blocking mesh plate and the material blocking mesh plate, and a cleaning scraper is fixedly installed at the bottom end of the sliding block, and the cleaning scraper is symmetrically fixedly installed at the bottom end of the sliding block.
[0009] As a further solution of the present invention: a mounting shell is fixedly installed on the top of the dust collector box, and an adjusting rack is symmetrically slidably connected inside the mounting shell, and the sliding block passes through the mounting shell and is fixedly installed with the adjusting rack, a connecting arm is fixedly installed on the top of the adjusting rack, and a through slot is provided on the top of the connecting arm, a rotating motor is fixedly installed on the top of the mounting shell, a rotating main shaft is rotatably connected inside the mounting shell, and the output end shaft of the rotating motor passes through the mounting shell and is fixedly installed with the rotating main shaft, a driving arm is fixedly installed on the bottom end of the rotating main shaft, and a connecting shaft is fixedly installed on the bottom end of the driving arm, the connecting shaft is adapted to the through slot, a rotating gear is rotatably connected inside the mounting shell, and the rotating gear is meshed with the adjusting rack.
[0010] As a further solution of the present invention: one end of the dust collection box is slidably connected to a dust collecting box, and the dust collecting box is located directly below the dust blocking mesh plate and the material blocking mesh plate, and a collection port for collecting scraped dust is opened in the middle of the dust blocking mesh plate and the material blocking mesh plate.
[0011] As a further solution of the present invention, the dust-blocking mesh plate, the material-blocking mesh plate and one end of the dust collecting box are all fixedly mounted with a pull-out handle for easy pulling out during work.
[0012] As a further solution of the present invention: one end of the dust box is slidably connected to a limit block for limiting, and the limit block is symmetrically slidably connected to both ends of the dust box, and limit slots are symmetrically opened inside the dust box, and the limit block is adapted to the limit slot.
[0013] As a further solution of the present invention: a cavity is opened inside the dust box, and partitions are symmetrically fixedly installed inside the cavity, a connecting plate is fixedly installed inside the cavity, and a limit block passes through the cavity and is fixedly installed with the connecting plate, a threaded block is fixedly installed on the bottom end of the connecting plate, and one end of the threaded block is threadedly connected to a threaded rod, the middle parts of the two groups of partitions are rotatably connected to the driven bevel gears, and the threaded rod passes through the partitions and is fixedly installed with the driven bevel gears, the middle parts of the two groups of partitions are rotatably connected to the driving bevel gears, and the driving bevel gear is meshed with the driven bevel gears, one end of the dust box is rotatably connected to a rotating shaft, and the rotating shaft passes through the dust box and is fixedly installed with the driving bevel gear, and an adjustment handle is fixedly installed on one end of the rotating shaft.
[0014] As a further solution of the present invention: vertical screw machines are provided inside the conveying pipe 6 and the second tower 2, a horizontal conveying screw machine is provided inside the first parallel spiral pipe 4, a relay screw machine is provided inside the bridge spiral pipe 3, and a discharging screw machine is provided inside the second parallel spiral pipe 5.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] The present invention uses a dust collecting fan to actively absorb dust generated during material transportation, which can effectively reduce the dust from entering the sealing gap, reduce the wear of the seal, improve the sealing performance, and enhance the safety of use. At the same time, the material blocking mesh plate and the dust blocking mesh plate are provided to prevent the material from being accidentally sucked in, and at the same time effectively block the dust, preventing the dust from entering the dust collecting fan, reducing the risk of damage and extending the service life.
[0017] In the present invention, the driving arm can be driven to rotate in a circle by starting the rotating motor, and the connecting arm can be made to slide back and forth through the connecting shaft and the through slot, thereby driving the adjustment rack to move. The symmetrical adjustment rack can be adjusted to slide synchronously by rotating the gear, thereby driving the sliding block and the cleaning scraper in the dust collection box to slide, which can effectively scrape off the dust and materials on the surface of the dust-blocking mesh plate and the material-blocking mesh plate, reduce their accumulation at one end, and reduce the risk of clogging.
[0018] In this invention, dust scraped off by the sliding cleaning scraper automatically falls into the dust box through the collection port. When the dust in the dust box needs to be processed, turning the adjustment handle drives the transmission components such as the rotating shaft, bevel gear, and threaded rod to pull the limit block out of the limit slot, releasing the fixed restriction of the dust box. The staff can easily remove the dust box by simply pulling the handle and centrally process the dust, thereby improving the efficiency of dust collection and processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0020] Figure 2 It is a structural schematic diagram of the first tower in the present invention;
[0021] Figure 3 This invention Figure 2 Schematic diagram of the local enlarged structure at A in the middle;
[0022] Figure 4 It is a structural schematic diagram of the dust collection box of the present invention;
[0023] Figure 5 It is a schematic diagram of the side cross-sectional structure of the dust collection box of the present invention;
[0024] Figure 6 It is a schematic diagram of the front cross-sectional structure of the dust collection box of the present invention;
[0025] Figure 7 This invention Figure 6 Schematic diagram of the local enlarged structure at B in the middle;
[0026] Figure 8 It is a schematic cross-sectional structure diagram of the dust collecting box in the present invention.
[0027] In the figure: 1. First tower; 2. Second tower; 3. Bridge spiral pipe; 4. First parallel spiral pipe; 5. Second parallel spiral pipe; 6. Feed pipe; 7. Discharge pipe; 8. Dust collection box; 9. Mounting base; 10. Dust barrier screen; 11. Material barrier screen; 12. Dust collection fan; 13. Snap-on slide; 14. Snap-on chute; 15. Fixing block; 16. Pull-out handle; 17. Sliding block; 18. Cleaning scraper; 19. , installing the shell; 20, adjusting the rack; 21, connecting arm; 22, through slot; 23, rotating motor; 24, rotating main shaft; 25, driving arm; 26, connecting shaft; 27, rotating gear; 28, dust box; 29, cavity; 30, partition; 31, limit block; 32, connecting plate; 33, threaded block; 34, threaded rod; 35, driven bevel gear; 36, driving bevel gear; 37, rotating shaft; 38, adjusting handle. DETAILED DESCRIPTION
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.
[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure.
[0030] Reference Figures 1 to 8 In an embodiment of the present invention, a double-tower spiral ship unloading conveyor includes a first tower 1 and a second tower 2, a bridge spiral pipe 3 is provided in the middle of the first tower 1 and the second tower 2, a first parallel spiral pipe 4 is provided at one end of the first tower 1, and a second parallel spiral pipe 5 is provided at one end of the second tower 2, a conveying pipe 6 is fixedly installed at the bottom end of the first parallel spiral pipe 4, a discharge pipe 7 is fixedly installed at the bottom end of the second parallel spiral pipe 5, a dust collection box 8 is fixedly installed at the bottom end of the conveying pipe 6, and a mounting seat 9 is fixedly installed at the top of the dust collection box 8, the mounting seat 9 is fixedly installed to the bottom end of the conveying pipe 6, a dust collection fan 12 is fixedly installed inside the dust collection box 8, a dust blocking mesh plate 10 is slidably connected to the inside of the dust collection box 8, and a material blocking mesh plate 11 is slidably connected to the inside of the dust collection box 8.
[0031] The above scheme is adopted: the dust suction fan 12 is an SSR series Roots blower with the characteristics of forced air transmission. The first parallel spiral tube 4 and the second parallel spiral tube 5 can move up and down, and the upward posture reaches 55 degrees. The vertical spiral tubes at the top of the first tower 1 and the second tower 2 can rotate 360 degrees. It is flexible for the dock operation of direct loading vehicles and can move up and down, left and right, front and back. It has good maneuverability when installed on ships. When the dock is changed and the position is changed later, the cable can be directly pulled away after being disassembled. It can be used by connecting the cable to the new position. The vertical spiral tubes at the top of the first tower 1 and the second tower 2 are respectively connected to the The first parallel spiral tube 4 is connected to the second parallel spiral tube 5, and the first parallel spiral tube 4 and the second parallel spiral tube 5 are connected to the center of the feed rack, and are equipped with reinforcement frames on both sides, so that the left and right swinging stability is better. There are multiple pulley sets on the first parallel spiral tube 4 and the second parallel spiral tube 5, and all the forces are dispersed and synchronized, the force is more evenly distributed, the up and down stability is better, the up and down pitch stroke is larger, the downward pitch is 45 degrees, and the upward pitch is 55 degrees. The connection position between the motor and the spiral tube adopts a belt soft connection, which is low in cost and eliminates the gearbox in the middle, so the maintenance cost is low and the failure rate is lower.
[0032] Reference Figures 1 to 8 , the bottom ends of the dust-blocking mesh plate 10 and the material-blocking mesh plate 11 are fixedly installed with a snap-on slider 13 for installation, and a snap-on slide groove 14 is provided inside the dust collection box 8, the snap-on slide groove 14 is adapted to the snap-on slider 13, and one end of the dust-blocking mesh plate 10 and the material-blocking mesh plate 11 is fixedly installed with a fixing block 15, and the fixing block 15 is symmetrically fixedly installed at both ends of the dust-blocking mesh plate 10 and the material-blocking mesh plate 11, and the fixing block 15 is threadedly connected to the dust collection box 8;
[0033] The above solution is adopted: the dust-blocking mesh plate 10 is a 304 stainless steel filter mesh plate, which has good corrosion resistance, high temperature resistance and high strength, and is suitable for dust filtration in various harsh environments. The material-blocking mesh plate 11 is a coarse-pore metal material, which is convenient for blocking materials.
[0034] Reference Figures 1 to 8The dust collection box 8 is symmetrically slidably connected with a sliding block 17 inside, and the two sets of sliding blocks 17 are respectively slidably connected to one end of the dust barrier mesh plate 10 and the material barrier mesh plate 11. The bottom of the sliding block 17 is fixedly installed with a cleaning scraper 18, and the cleaning scraper 18 is symmetrically fixedly installed at the bottom of the sliding block 17. The top of the dust collection box 8 is fixedly installed with a mounting shell 19. The mounting shell 19 is symmetrically slidably connected with an adjustment rack 20 inside, and the sliding block 17 passes through the mounting shell 19 and is fixedly installed with the adjustment rack 20. The top of the adjustment rack 20 is fixedly installed with a connecting arm 21 , and a through slot 22 is provided at the top of the connecting arm 21, a rotating motor 23 is fixedly installed at the top of the mounting housing 19, a rotating main shaft 24 is rotatably connected inside the mounting housing 19, and the output end shaft of the rotating motor 23 passes through the mounting housing 19 and is fixedly installed with the rotating main shaft 24, a driving arm 25 is fixedly installed at the bottom of the rotating main shaft 24, and a connecting shaft 26 is fixedly installed at the bottom of the driving arm 25, the connecting shaft 26 is adapted to the through slot 22, a rotating gear 27 is rotatably connected inside the mounting housing 19, and the rotating gear 27 is meshed with the adjusting rack 20;
[0035] Adopting the above scheme: the rotating motor 23 is a DC motor, its model is Z4 series, its speed regulation range is wider, its dynamic performance is good, and its power can be from 1.5kW to 500kW.
[0036] Reference Figures 1 to 8 One end of the dust collection box 8 is slidably connected to a dust collection box 28, and the dust collection box 28 is located directly below the dust barrier mesh plate 10 and the material barrier mesh plate 11. A collection port for collecting scraped dust is provided in the middle of the dust barrier mesh plate 10 and the material barrier mesh plate 11. One end of the dust collection box 28 is slidably connected to a limit block 31 for limiting, and the limit block 31 is symmetrically slidably connected to both ends of the dust collection box 28. A limit card slot is symmetrically provided inside the dust collection box 8, and the limit card block 31 is adapted to the limit card slot. A cavity 29 is provided inside the dust collection box 28, and a partition 30 is symmetrically fixedly installed inside the cavity 29, and a connecting plate is fixedly installed inside the cavity 29. 32, and the limiting block 31 passes through the cavity 29 and is fixedly installed with the connecting plate 32, a threaded block 33 is fixedly installed at the bottom end of the connecting plate 32, and one end of the threaded block 33 is threadedly connected to a threaded rod 34, the middle part of the two sets of partitions 30 is rotatably connected to a driven bevel gear 35, and the threaded rod 34 passes through the partition 30 and is fixedly installed with the driven bevel gear 35, the middle part of the two sets of partitions 30 is rotatably connected to a driving bevel gear 36, and the driving bevel gear 36 is meshed with the driven bevel gear 35, one end of the dust box 28 is rotatably connected to a rotating shaft 37, and the rotating shaft 37 passes through the dust box 28 and is fixedly installed with the driving bevel gear 36, and one end of the rotating shaft 37 is fixedly installed with an adjusting handle 38;
[0037] Adopting the above-mentioned scheme: the outer wall of the limit block 31 and the inner wall of the limit slot are provided with an anti-slip layer to increase the friction of the limit plugging. The anti-slip layer is made of silicone material, which has the advantages of high temperature resistance, low temperature resistance, and aging resistance. It increases the friction during plugging and increases the stability during limiting.
[0038] Reference Figures 1 to 8 The dust-blocking mesh plate 10, the material-blocking mesh plate 11 and one end of the dust collecting box 28 are all fixedly mounted with a pull-out handle 16 for easy pulling out during work;
[0039] The above solution is adopted: the pull-out handle 16 is U-shaped, and a rubber sleeve is provided on the periphery to increase the friction when the staff holds it. The pull-out handle 16 is fixed to the dust-blocking mesh plate 10, the material-blocking mesh plate 11 and one end of the dust collecting box 28 through a threaded connection.
[0040] Reference Figures 1 to 8 : The feed pipe 6 and the second tower 2 are both provided with vertical screw machines, the first parallel spiral pipe 4 is provided with a horizontal feed screw machine, the bridge spiral pipe 3 is provided with a relay screw machine, and the second parallel spiral pipe 5 is provided with a discharge screw machine;
[0041] The above scheme is adopted: the vertical spiral tube inside the feed pipe 6 lifts the material and transports it to the inside of the first parallel spiral tube 4, and then the horizontal screw machine inside the first parallel spiral tube 4 transports the material backward to the center position of the first tower 1, and the transported material falls freely to the inside of the bridge spiral tube 3, and then the relay screw machine inside the bridge spiral tube 3 transports the material to the center position of the second tower 2. When the material reaches the center position of the second tower 2, the vertical screw machine inside the second tower 2 can lift the material upward and squeeze the material upward to the discharge screw machine inside the second parallel spiral tube 5, and then it can be loaded through the discharge pipe 7.
[0042] The working principle of the present invention is as follows: when the material is being conveyed in the conveying pipe 6, the staff starts the dust suction fan 12 inside the dust suction box 8, and at the same time, the material enters the interior of the conveying pipe 6 from the through hole at the bottom end of the dust suction box 8. When the material enters the interior of the conveying pipe 6, the dust generated will be absorbed by the dust suction fan 12. During the absorption, the dust will pass through the material blocking mesh plate 11, and then be blocked by the dust blocking mesh plate 10 on one side. The dust blocking mesh plate 10 can block the dust, reduce the damage of the dust suction fan 12 caused by the dust entering the dust suction fan 12, and increase the service life of the dust suction fan 12. By absorbing the dust generated when conveying materials, It will reduce the dust from entering the sealing gap, accelerate the wear of the seal, and cause the sealing performance to decline, thereby increasing the safety of use. At the same time, the staff starts the rotating motor 23 at the top of the mounting shell 19. The output end shaft of the rotating motor 23 will drive the rotating main shaft 24 to rotate, thereby driving the driving arm 25 to rotate in a circle around the rotating main shaft 24. At the same time, the connecting shaft 26 and the through slot 22 at the bottom of the driving arm 25 will drive the connecting arm 21 to slide back and forth inside the mounting shell 19, thereby driving the adjustment rack 20 to move and slide. By adjusting the sliding of the rack 20 and rotating the gear 27, the adjustment rack 20 on the symmetrical side can be driven. Do synchronous sliding, by adjusting the sliding of the rack 20, it will drive the sliding block 17 symmetrically arranged inside the dust box 8 to slide, and then drive the cleaning scraper 18 to slide, and the cleaning scraper 18 can scrape the surface of the dust-blocking mesh plate 10 and the material-blocking mesh plate 11 to reduce the accumulation of dust or materials at one end and reduce the occurrence of blockage. When the cleaning scraper 18 slides, the scraped dust will fall into the dust box 28 through the collection port in the middle of the dust-blocking mesh plate 10 and the material-blocking mesh plate 11 to complete the collection. When the staff needs to deal with the dust collected inside the dust box 28, the staff turns the adjustment handle 3 8 drives the rotating shaft 37 to rotate, and the rotation of the rotating shaft 37 drives the driving bevel gear 36 to rotate. Since the driving bevel gear 36 is meshed with the driven bevel gear 35, it drives the driven bevel gear 35 to rotate together. When the driven bevel gear 35 moves, it drives the threaded rod 34 to rotate, and then drives the threaded block 33 to make axial movement, driving the limit card block 31 to slide inside the cavity 29, so that the limit card block 31 is pulled out from the limit card slot inside the dust box 8. After that, the staff can take out the dust box 28 by pulling the handle 16, and the collected dust is centrally processed, thereby increasing the efficiency of the dust collection by the staff.
[0043] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. A twin-tower spiral ship unloading conveyor, comprising a first tower (1) and a second tower (2), wherein a bridge spiral tube (3) is provided in the middle of the first tower (1) and the second tower (2), a first parallel spiral tube (4) is provided at one end of the first tower (1), a second parallel spiral tube (5) is provided at one end of the second tower (2), a feed tube (6) is fixedly installed at the bottom end of the first parallel spiral tube (4), and a discharge tube (7) is fixedly installed at the bottom end of the second parallel spiral tube (5), characterized in that: A dust collecting box (8) is fixedly mounted on the bottom end of the feeding pipe (6), and a mounting seat (9) is fixedly mounted on the top end of the dust collecting box (8). The mounting seat (9) is fixedly mounted on the bottom end of the feeding pipe (6). A dust collecting fan (12) is fixedly mounted inside the dust collecting box (8). A dust-blocking mesh plate (10) is slidably connected inside the dust collecting box (8). A material-blocking mesh plate (11) is slidably connected inside the dust collecting box (8).
2. A twin-tower screw ship unloading conveyor according to claim 1, characterized in that: The bottom ends of the dust-blocking mesh plate (10) and the material-blocking mesh plate (11) are both fixedly mounted with a snap-fitting slider (13) for mounting, and a snap-fitting slot (14) is provided inside the dust collection box (8), and the snap-fitting slot (14) is adapted to the snap-fitting slider (13).
3. The twin-tower screw ship unloading conveyor according to claim 2, characterized in that: A fixing block (15) is fixedly mounted on one end of each of the dust-blocking mesh plate (10) and the material-blocking mesh plate (11), and the fixing block (15) is symmetrically fixedly mounted on both ends of the dust-blocking mesh plate (10) and the material-blocking mesh plate (11), and the fixing block (15) is threadedly connected to the dust collection box (8).
4. The twin-tower screw ship unloading conveyor according to claim 3, characterized in that: The dust collecting box (8) is symmetrically and slidably connected to a sliding block (17) inside, and two groups of sliding blocks (17) are respectively slidably connected to one end of the dust-blocking mesh plate (10) and the material-blocking mesh plate (11), and a cleaning scraper (18) is fixedly installed at the bottom end of the sliding block (17), and the cleaning scraper (18) is symmetrically and fixedly installed at the bottom end of the sliding block (17).
5. The twin-tower screw ship unloading conveyor according to claim 4, characterized in that: The top of the dust collection box (8) is fixedly mounted with a mounting shell (19), the interior of the mounting shell (19) is symmetrically slidably connected with an adjustment rack (20), and the sliding block (17) passes through the mounting shell (19) and is fixedly mounted with the adjustment rack (20), the top of the adjustment rack (20) is fixedly mounted with a connecting arm (21), and the top of the connecting arm (21) is provided with a through slot (22), the top of the mounting shell (19) is fixedly mounted with a rotating motor (23), and the interior of the mounting shell (19) is rotated. The rotating main shaft (24) is rotatably connected, and the output end shaft of the rotating motor (23) passes through the mounting housing (19) and is fixedly mounted on the rotating main shaft (24). The bottom end of the rotating main shaft (24) is fixedly mounted with a driving arm (25), and the bottom end of the driving arm (25) is fixedly mounted with a connecting shaft (26), and the connecting shaft (26) is adapted to the through slot (22). The mounting housing (19) is rotatably connected with a rotating gear (27), and the rotating gear (27) is meshed with the adjusting rack (20).
6. The twin-tower screw ship unloading conveyor according to claim 5, characterized in that: One end of the dust collecting box (8) is slidably connected to a dust collecting box (28), and the dust collecting box (28) is located directly below the dust-blocking mesh plate (10) and the material-blocking mesh plate (11). A collecting port for collecting scraped dust is provided in the middle of the dust-blocking mesh plate (10) and the material-blocking mesh plate (11).
7. The twin-tower screw ship unloading conveyor according to claim 6, characterized in that: The dust-blocking mesh plate (10), the material-blocking mesh plate (11), and one end of the dust collecting box (28) are all fixedly mounted with a pull-out handle (16) for easy pulling out during operation.
8. The twin-tower screw ship unloading conveyor according to claim 7, characterized in that: One end of the dust collecting box (28) is slidably connected to a limiting block (31) for limiting the position, and the limiting block (31) is symmetrically slidably connected to both ends of the dust collecting box (28). The dust collecting box (8) is symmetrically provided with limiting slots, and the limiting block (31) is adapted to the limiting slots.
9. The twin-tower screw ship unloading conveyor according to claim 8, characterized in that: A cavity (29) is provided inside the dust collecting box (28), and a partition (30) is symmetrically fixedly installed inside the cavity (29), a connecting plate (32) is fixedly installed inside the cavity (29), and a limit block (31) passes through the cavity (29) and is fixedly installed with the connecting plate (32), a threaded block (33) is fixedly installed at the bottom end of the connecting plate (32), one end of the threaded block (33) is threadedly connected to a threaded rod (34), and the middle parts of the two groups of partitions (30) are rotatably connected to driven bevel gears. Wheel (35), and the threaded rod (34) passes through the partition (30) and is fixedly installed with the driven bevel gear (35), the middle part of the two groups of partitions (30) is rotatably connected with the active bevel gear (36), and the active bevel gear (36) is meshed with the driven bevel gear (35), one end of the dust box (28) is rotatably connected with the rotating shaft (37), and the rotating shaft (37) passes through the dust box (28) and is fixedly installed with the active bevel gear (36), and one end of the rotating shaft (37) is fixedly installed with an adjustment handle (38).
10. The twin-tower screw ship unloading conveyor according to claim 1, characterized in that: A vertical screw machine is provided inside the feeding pipe (6) and the second tower (2), a horizontal feeding screw machine is provided inside the first parallel spiral pipe (4), a relay screw machine is provided inside the bridge spiral pipe (3), and a discharging screw machine is provided inside the second parallel spiral pipe (5).