Pneumatic bulk cargo continuous ship loader

Abstract

The utility model belongs to the technical field of bulk cargo ship loading devices, and discloses a pneumatic type bulk cargo continuous ship loader which comprises a door frame, an arm frame and a main machine room are rotationally connected to the door frame, a material-gas separation filter and a gas source fan are arranged in the main machine room, and the bottom of the material-gas separation filter is fixedly connected with a negative pressure feeding pipe and an air sealing unloader. One end, far away from the main machine room, of the arm frame is fixedly connected with a centrifugal unloader, the lower end of the centrifugal unloader is fixedly connected with a dust-free telescopic articulated chute, and the lower end of the centrifugal unloader is provided with an anti-collision mechanism and a dustproof soft cover; through cooperation of the material-air separation filter, the air source fan and the positive and negative pressure pipeline, materials are in a continuous conveying state, continuous shipping of bulk materials is facilitated, material-air separation and air filtering are facilitated through the material-air separation filter, hard collision between the lower end of the dust-free telescopic elephant trunk and the bottom of a ship is avoided through the anti-collision mechanism, and shipping safety is improved. The dust-free telescopic articulated chute is provided with the dustproof soft cover, so that dust can be conveniently prevented from flying outwards.

Description

Technical Field

[0001] The utility model relates to a pneumatic bulk material continuous ship loader, belonging to the technical field of bulk material ship loading devices. Background Art

[0002] A ship loader is a large-scale bulk material machinery used for loading ships at bulk material terminals. Generally, a ship loader is composed of a boom belt conveyor, a transition belt conveyor, a telescopic chute, a tail car, a running device, a gantry, a tower, a pitch device, a slewing device, etc. The telescopic chute is a multi-section setting, which can be extended and retracted to be close to the hull for loading operations to reduce dust. However, when loading bulk materials such as grain, cement, and fly ash, dust will also be generated when the materials flow out from the lower end of the chute, resulting in adverse effects on the working environment on the ship. At the same time, due to the dim light and insufficient vision in the cabin, the operators and on-site commanders cannot see the specific situation of the chute. There is a risk of hard collision between the bottom of the chute and the bottom of the cabin, causing damage to the chute. Therefore, a pneumatic bulk material continuous loader is needed that is easy to suppress dust at the lower end of the chute and avoid hard collision between the bottom of the chute and the bottom of the cabin. Summary of the invention

[0003] The utility model aims to provide a pneumatic bulk material continuous ship loader.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pneumatic bulk material continuous loader, comprising a gantry, the top of the gantry is rotatably connected to an arm through a slewing bearing mechanism, the top of the arm is fixedly connected to a main engine room, the main engine room is fixedly overlapped with a material-gas separation filter and an air source fan, the top of the material-gas separation filter is connected to the air inlet of the air source fan through the fan air inlet pipe, the air outlet of the air source fan is fixedly connected to a positive pressure conveying pipe, one side of the bottom of the material-gas separation filter is fixedly connected to a negative pressure feeding pipe, the bottom of the material-gas separation filter is fixedly connected to a closed-air discharger, the discharge port of the closed-air discharger is connected to the positive pressure conveying pipe through a gas-solid mixer, the end of the arm away from the main engine room is fixedly connected to a centrifugal discharger, the end of the positive pressure conveying pipe away from the air source fan is communicated with the centrifugal discharger, the lower end of the centrifugal discharger is fixedly connected to a dust-free telescopic chute, and the lower end of the dust-free telescopic chute is provided with an anti-collision mechanism and a dust-proof soft cover.

[0005] Preferably, the material-gas separation filter comprises a shell body I, a bag dust filter is provided on the upper side of the interior of the shell body I, the lower part of the shell body I is a cone-shaped sedimentation chamber, and the lower end of the cone-shaped sedimentation chamber is connected to the feed port of the air-shut discharger.

[0006] Preferably, the centrifugal unloader includes a shell II, the top of one side of the shell II is connected to the outlet end of the positive pressure delivery pipe, the top of the shell II is provided with an air outlet hole, a bag dust collector is provided on the air outlet hole, and the lower end of the shell II is connected to the upper end of the dust-free telescopic chute through a star-shaped unloading valve.

[0007] Preferably, the anti-collision mechanism includes more than three buffer rods evenly arranged at the lower end of the dust-free telescopic slide pipe, the lower end of the buffer rod is fixedly connected to a rubber buffer block I, and the upper surface of the rubber buffer block I is conical.

[0008] Preferably, the cross-section of the rubber buffer block I is circular, elliptical, rectangular, hexagonal or octagonal.

[0009] Preferably, the buffer rod comprises a rubber piston sleeve whose top end is fixedly connected to the lower end of the dust-free telescopic slide tube, a piston block is slidably connected inside the rubber piston sleeve, a buffer spring I is provided on the upper surface of the piston block, and a piston rod penetrating the lower side wall of the rubber piston sleeve is fixedly connected to the lower surface, the lower end of the piston rod is fixedly connected to the top end of the rubber buffer block I, and the inner wall of the rubber piston sleeve and the outer wall of the piston block are smooth surfaces.

[0010] Preferably, the anti-collision mechanism includes more than three connecting rods evenly arranged at the lower end of the dust-free telescopic slide tube, and the lower end of the connecting rod is fixedly connected to a rubber buffer block II, the upper surface of the rubber buffer block II is conical, and a cavity is opened inside the rubber buffer block II, and the inner top surface and the inner bottom surface of the cavity are respectively provided with limit plates, and a buffer spring II is provided between the two limit plates, and the buffer spring II is a compression spring.

[0011] Preferably, the dustproof soft cover is a pleated skirt-shaped structure, and the dustproof soft cover is made of canvas, tarpaulin or rubber material, and the positive pressure delivery pipe and the negative pressure feed pipe are provided with air volume and air pressure sensors.

[0012] Preferably, the inner walls of the material-gas separation filter, the positive pressure conveying pipe, the negative pressure feeding pipe, the air-locking discharger, the gas-solid mixer, the centrifugal discharger, and the dust-free telescopic chute are all smooth surfaces. Beneficial Effects

[0013] The utility model discloses a pneumatic bulk material continuous loader, which cooperates with a material-gas separation filter, an air source fan, a positive pressure conveying pipe and a negative pressure feeding pipe. The air source fan continuously draws air, so that the interior of the material-gas separation filter is under negative pressure, thereby driving the negative pressure feeding pipe to suck and transport materials. The air outlet end of the air source fan is under positive pressure, which is convenient for the positive pressure conveying pipe to press and feed materials. The material suction and feeding are in a continuous conveying state, which is convenient for realizing the function of continuous bulk material loading. By arranging the material-gas separation filter, it is convenient for material-gas separation and air filtering. By arranging the air-shutoff unloader, it is convenient to isolate the positive and negative pressure airflows of the air source fan, which is convenient for feeding and feeding. The air-shutoff unloader has the dual functions of shutting off air and unloading. By arranging an anti-collision mechanism, it is possible to prevent the lower end of the dust-free telescopic chute from hard collision with the bottom of the ship to damage the dust-free telescopic chute. By arranging a dust-proof soft cover, it is convenient to suppress the falling dust at the lower end of the dust-free telescopic chute to prevent the dust from flying out. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the material-gas separation filter in the utility model;

[0016] Figure 3 It is a structural schematic diagram of the centrifugal discharger in the utility model;

[0017] Figure 4 This is a schematic diagram of a half-section structure of a dust-free telescopic slide pipe in Embodiment 1 of the present utility model;

[0018] Figure 5 It is a schematic diagram of the half-section structure of the dust-free telescopic chute in the second embodiment of the utility model.

[0019] In the figure: 1. gantry; 2. walking wheel mechanism; 3. slewing bearing mechanism; 4. arm; 5. main machine room; 6. material-gas separation filter; 7. air source fan; 8. fan air inlet pipe; 9. positive pressure conveying pipe; 10. negative pressure feeding pipe; 11. air shut-off unloader; 12. gas-solid mixer; 13. centrifugal unloader; 14. dust-free telescopic slide; 15. dust-proof soft cover; 16. shell I; 17. bag filter; 18. cone bucket sedimentation chamber; 19. shell II; 20. bag filter; 21. star unloading valve; 22. buffer rod; 23. rubber buffer block I; 24. rubber piston sleeve; 25. piston block; 26. buffer spring I; 27. piston rod; 28. connecting rod; 29. ​​rubber buffer block II; 30. cavity; 31. limit plate; 32. buffer spring II. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0021] like Figure 1-4 As shown, the utility model provides a technical solution: a pneumatic bulk material continuous ship loader, comprising a gantry 1, a walking wheel mechanism 2 is provided at the lower end of the gantry 1, the top of the gantry 1 is rotatably connected to an arm 4 through a slewing bearing mechanism 3, the slewing bearing mechanism 3 is driven by an electric motor or a hydraulic motor, and can drive the arm 4 to rotate 280° in the horizontal direction, the arm 4 is a steel truss structure, and its length meets the requirements of the ship size, the top of the arm 4 close to the gantry 1 is fixedly connected to a main engine room 5, and a material-gas separation filter 6 and an air source fan 7 are fixedly overlapped in the main engine room 5, and the material The top of the air separation filter 6 is connected to the air inlet of the air source fan 7 through the fan inlet pipe 8. The air source fan 7 is a high-performance multi-stage centrifugal fan, which is driven by a frequency converter to facilitate the adjustment of air volume and air pressure according to different types of materials or feeding conditions. The air outlet of the air source fan 7 is fixedly connected to a positive pressure conveying pipe 9 for pressurizing the material. The positive pressure conveying pipe 9 is fixedly installed on the arm 4. One side of the bottom of the material-gas separation filter 6 is fixedly connected to a negative pressure feed pipe 10 whose upper end extends to the inside of the material-gas separation filter 6. The negative pressure feed pipe 10 is connected to the end away from the material-gas separation filter 6. The pressure-resistant hose is connected to the fixed silo, buffer silo, car or train compartment, and the bulk material is sucked into the material-gas separation filter 6. The bottom of the material-gas separation filter 6 is fixedly connected to the air discharger 11. The air-off discharger 11 in this embodiment is a star-shaped discharge valve or a star-shaped metering discharge valve. The discharge port of the air-off discharger 11 is connected to the positive pressure conveying pipe 9 through the gas-solid mixer 12. The end of the arm 4 away from the main machine room 5 is fixedly connected with a centrifugal discharger 13. The end of the positive pressure conveying pipe 9 away from the air source fan 7 is connected to the centrifugal discharger 13. The lower end is fixedly connected with a dust-free telescopic chute 14, which is an existing mature component of the ship loader, and the specific structure is not repeated here. The lower end of the dust-free telescopic chute 14 is provided with an anti-collision mechanism and a dust-proof soft cover 15, and the dust-proof soft cover 15 is covered on the outside of the anti-collision mechanism. The dust-proof soft cover 15 is a pleated skirt-shaped structure, and the dust-proof soft cover 15 is made of canvas, tarpaulin or rubber material. The positive pressure conveying pipe 9 and the negative pressure feeding pipe 10 are provided with air volume and air pressure sensors, and the air volume and air pressure sensors are electrically connected to the air source fan 7, so as to control the air volume and air pressure according to the material conveying requirements.

[0022] Preferably, the material-gas separation filter 6 comprises a shell body Ⅰ16 fixedly connected to the main machine room 5, a bag dust filter 17 is provided on the upper side of the interior of the shell body Ⅰ16, an air outlet of the bag dust filter 17 is connected to the air inlet pipe 8 of the fan, and the lower part of the shell body Ⅰ16 is a conical bucket-shaped settling chamber 18, and the lower end of the conical bucket-shaped settling chamber 18 is connected to the feed port of the air shut-off discharger 11.

[0023] Preferably, the centrifugal discharger 13 includes a shell body II 19 fixedly connected to the arm 4, the top of one side of the shell body II 19 is connected to the outlet end of the positive pressure delivery pipe 9, the top of the shell body II 19 is provided with an air outlet, and a bag dust collector 20 is provided on the air outlet, and the lower end of the shell body II 19 is connected to the upper end of the dust-free telescopic chute 14 through a star-shaped discharge valve 21.

[0024] Preferably, the anti-collision mechanism includes more than three buffer rods 22 evenly arranged at the lower end of the dust-free telescopic chute 14, the lower end of the buffer rod 22 is fixedly connected with a rubber buffer block Ⅰ23, the upper surface of the rubber buffer block Ⅰ23 is conical, and the cross-section of the rubber buffer block Ⅰ23 is circular, elliptical, rectangular hexagonal or octagonal, the buffer rod 22 includes a rubber piston sleeve 24 whose top is fixedly connected to the lower end of the dust-free telescopic chute 14, the inside of the rubber piston sleeve 24 is slidably connected with a piston block 25, the upper surface of the piston block 25 is provided with a buffer spring Ⅰ26, and the lower surface is fixedly connected with a piston rod 27 that passes through the lower side wall of the rubber piston sleeve 24, the buffer spring Ⅰ26 is a compression spring, the lower end of the piston rod 27 is fixedly connected to the top of the rubber buffer block Ⅰ23, the inner wall of the rubber piston sleeve 24 and the outer wall of the piston block 25 are smooth surfaces, and in this embodiment, the inner wall of the rubber piston sleeve 24 and the outer wall of the piston block 25 are provided with a Teflon self-lubricating and wear-resistant coating.

[0025] Preferably, the inner walls of the gas-gas separation filter 6, the positive pressure conveying pipe 9, the negative pressure feeding pipe 10, the air-locking discharger 11, the gas-solid mixer 12, the centrifugal discharger 13, and the dust-free telescopic chute 14 are all smooth surfaces. In this embodiment, the inner wall of the gas-gas separation filter 6, the inner wall of the positive pressure conveying pipe 9, the inner wall of the negative pressure feeding pipe 10, the inner wall of the air-locking discharger 11, the inner wall of the gas-solid mixer 12, the inner wall of the centrifugal discharger 13, the inner wall of the dust-free telescopic chute 14, the outer wall of the anti-collision mechanism, and the inner wall of the dust-proof soft cover 15 are respectively provided with Teflon wear-resistant and non-stick coatings.

[0026] The working principle of the utility model is that when bulk materials are loaded on board, the slewing bearing mechanism 3 drives the arm 4 to rotate to the top of the bulk carrier's hatch, the dust-free telescopic chute 14 is extended, so that the lower end of the dust-free telescopic chute 14 is close to the bottom of the ship, and the air source fan 7 works to extract the air in the material-gas separation filter 6, so that the material-gas separation filter 6 is in a negative pressure state, and then the material is sucked from the fixed silo, buffer silo, car or train compartment into the cone-shaped sedimentation chamber 18 of the material-gas separation filter 6 through the negative pressure feed pipe 10, and the material settles to the bottom of the cone-shaped sedimentation chamber 18, and the dust-containing air After being filtered by the bag filter 17, it becomes clean air and enters the air source fan 7 through the fan air inlet pipe 8. After the material settles to the bottom of the cone-shaped sedimentation chamber 18, it enters the gas-solid mixer 12 through the air-off discharger 11, and then the material and the positive pressure air are transformed into a gas-solid two-phase flow state in the gas-solid mixer 12, and then transported to the centrifugal discharger 13 at the end of the pipeline through the positive pressure conveying pipe 9. After the material-gas separation in the centrifugal discharger 13, the material enters the dust-free telescopic chute 14 and is loaded into the cabin of the bulk carrier. During operation, the dust-free telescopic chute 14 increases with the material. It automatically shrinks and keeps close to the material to reduce the dust of falling materials. At the same time, the dust-proof soft cover 15 at the lower end of the dust-free telescopic slide pipe 14 suppresses the dust from flying outward. The air source fan 7 continuously draws and supplies air. The feeding and conveying of the ship loader are in a continuous conveying state, realizing the function of continuous loading of bulk materials. The pneumatic bulk material continuous ship loader of the utility model, through the cooperation of the material-gas separation filter, the air source fan, the positive pressure conveying pipe, and the negative pressure feeding pipe, the air source fan continuously draws air, so that the inside of the material-gas separation filter is negative pressure, driving the negative pressure feeding pipe to suck and transport materials, and the air outlet end of the air source fan is positive pressure, which is convenient for The positive pressure conveying pipe presses the material, and the suction and feeding are in a continuous conveying state, which is convenient for realizing the function of continuous loading of bulk materials. By setting up a material-gas separation filter, it is convenient to separate the material and gas and filter the air. By setting up an air-shutoff unloader, it is convenient to isolate the positive and negative pressure airflows of the air source fan, which is convenient for feeding and conveying. The air-shutoff unloader has the dual functions of shutting off the air and unloading. By setting up an anti-collision mechanism, the lower end of the dust-free telescopic chute can be prevented from hard collision with the bottom of the ship to damage the dust-free telescopic chute. By setting up a dust-proof soft cover, it is convenient to suppress the falling dust at the lower end of the dust-free telescopic chute to prevent dust from being blown away. Example

[0027] like Figure 5As shown, the utility model provides a technical solution: a pneumatic bulk material continuous ship loader, comprising a gantry 1, the top of the gantry 1 is rotatably connected to an arm 4 through a slewing bearing mechanism 3, the top of the arm 4 close to the gantry 1 is fixedly connected to a main engine room 5, a material-gas separation filter 6 and an air source fan 7 are fixedly overlapped in the main engine room 5, the end of the arm 4 away from the main engine room 5 is fixedly connected to a centrifugal discharger 13, the lower end of the centrifugal discharger 13 is fixedly connected to a dust-free telescopic chute 14, and the lower end of the dust-free telescopic chute 14 is provided with an anti-collision mechanism and a dust-proof soft cover 15, The anti-collision mechanism includes more than three connecting rods 28 evenly arranged at the lower end of the dust-free telescopic slide 14, and the lower end of the connecting rod 28 is fixedly connected to a rubber buffer block II 29. The upper surface of the rubber buffer block II 29 is conical, and the cross-section of the rubber buffer block II 29 is circular, elliptical, rectangular hexagonal or octagonal. A cavity 30 is opened inside the rubber buffer block II 29, and the inner top surface and the inner bottom surface of the cavity 30 are respectively provided with limit plates 31. A buffer spring II 32 is provided between the two limit plates 31, and the buffer spring II 32 is a compression spring. The other structures are the same as those in Example 1.

[0028] As a supplementary solution, a distance sensor is provided at the bottom of the rubber buffer block I 23 and the rubber buffer block II 29, and the distance sensor is a laser rangefinder or a rangefinder radar.

Claims

1. A pneumatic bulk material continuous ship loader, comprising a gantry (1), characterized in that: The top of the gantry (1) is rotatably connected to an arm frame (4) via a slewing bearing mechanism (3); the top of the arm frame (4) is fixedly connected to a main machine room (5); a material-gas separation filter (6) and an air source fan (7) are fixedly overlapped in the main machine room (5); the top of the material-gas separation filter (6) is connected to an air inlet of the air source fan (7) via a fan air inlet pipe (8); the air outlet of the air source fan (7) is fixedly connected to a positive pressure delivery pipe (9); one side of the bottom of the material-gas separation filter (6) is fixedly connected to a negative pressure feed pipe (10); The bottom of the filter (6) is fixedly connected to a closed air discharger (11), the discharge port of the closed air discharger (11) is connected to a positive pressure conveying pipe (9) through a gas-solid mixer (12), the end of the arm (4) away from the main machine room (5) is fixedly connected to a centrifugal discharger (13), the end of the positive pressure conveying pipe (9) away from the air source fan (7) is connected to the centrifugal discharger (13), the lower end of the centrifugal discharger (13) is fixedly connected to a dust-free telescopic chute (14), and the lower end of the dust-free telescopic chute (14) is provided with an anti-collision mechanism and a dust-proof soft cover (15).

2. A pneumatic bulk material continuous ship loader according to claim 1, characterized in that: The material-gas separation filter (6) comprises a shell body I (16), a bag dust filter (17) is provided on the upper side of the interior of the shell body I (16), the lower part of the shell body I (16) is a cone-shaped settling chamber (18), and the lower end of the cone-shaped settling chamber (18) is connected to the feed port of the air-locking discharger (11).

3. The pneumatic bulk material continuous ship loader according to claim 1, characterized in that: The centrifugal discharger (13) comprises a shell II (19), the top of one side of the shell II (19) being connected to the outlet end of the positive pressure delivery pipe (9), the top of the shell II (19) being provided with an air outlet hole, the air outlet hole being provided with a bag dust collector (20), and the lower end of the shell II (19) being connected to the upper end of the dust-free telescopic chute (14) via a star-shaped discharge valve (21).

4. The pneumatic bulk material continuous ship loader according to claim 1, characterized in that: The anti-collision mechanism comprises more than three buffer rods (22) evenly arranged at the lower end of the dust-free telescopic slide pipe (14), the lower end of the buffer rod (22) is fixedly connected to a rubber buffer block I (23), and the upper surface of the rubber buffer block I (23) is conical.

5. A pneumatic bulk material continuous ship loader according to claim 4, characterized in that: The cross section of the rubber buffer block I (23) is circular, elliptical, rectangular, hexagonal or octagonal.

6. A pneumatic bulk material continuous ship loader according to claim 4, characterized in that: The buffer rod (22) comprises a rubber piston sleeve (24) whose top end is fixedly connected to the lower end of the dust-free telescopic slide tube (14); a piston block (25) is slidably connected to the inside of the rubber piston sleeve (24); a buffer spring I (26) is provided on the upper surface of the piston block (25); and a piston rod (27) penetrating the lower side wall of the rubber piston sleeve (24) is fixedly connected to the lower surface; the lower end of the piston rod (27) is fixedly connected to the top end of the rubber buffer block I (23); the inner wall of the rubber piston sleeve (24) and the outer wall of the piston block (25) are smooth surfaces.

7. The pneumatic bulk material continuous ship loader according to claim 1, characterized in that: The anti-collision mechanism comprises more than three connecting rods (28) uniformly arranged at the lower end of the dust-free telescopic slide tube (14); the lower end of the connecting rod (28) is fixedly connected to a rubber buffer block II (29); the upper surface of the rubber buffer block II (29) is conical; a cavity (30) is provided inside the rubber buffer block II (29); the inner top surface and the inner bottom surface of the cavity (30) are respectively provided with limit plates (31); a buffer spring II (32) is provided between the two limit plates (31); the buffer spring II (32) is a compression spring.

8. The pneumatic bulk material continuous ship loader according to claim 1, characterized in that: The dustproof soft cover (15) is a pleated skirt-shaped structure and is made of canvas, tarpaulin or rubber material. Air volume and air pressure sensors are provided on the positive pressure delivery pipe (9) and the negative pressure feed pipe (10).

9. The pneumatic bulk material continuous ship loader according to claim 1, characterized in that: The inner walls of the material-gas separation filter (6), the positive pressure delivery pipe (9), the negative pressure feed pipe (10), the air shut-off discharger (11), the gas-solid mixer (12), the centrifugal discharger (13), and the dust-free telescopic chute (14) are all smooth surfaces.

10. The pneumatic bulk material continuous ship loader according to claim 1, characterized in that: The inner wall of the material-gas separation filter (6), the inner wall of the positive pressure delivery pipe (9), the inner wall of the negative pressure feed pipe (10), the inner wall of the air-locking discharger (11), the inner wall of the gas-solid mixer (12), the inner wall of the centrifugal discharger (13), the inner wall of the dust-free telescopic chute (14), the outer wall of the anti-collision mechanism, and the inner wall of the dust-proof soft cover (15) are respectively provided with Teflon wear-resistant non-stick coating.

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