Active alumina powder automatic feeding equipment

Abstract

The present application relates to the technical field of vacuum feeding equipment, and discloses an automatic feeding equipment for active alumina powder, which comprises a vortex vacuum pump, a separation hopper and an end suction machine, the end suction machine further comprises a main equipment rack, a rotary platform is fixedly installed on the upper end surface of the main equipment rack, a rotary support is rotatably installed in the rotary platform in a built-in mode, a support is fixedly installed on the rear side of the rotary platform, a rotary joint is fixedly installed on the front side of the support, a third joint is fixedly installed on the upper end of the rotary joint and is connected in communication with the input end of the vortex vacuum pump through a pipeline, and the output end of the vortex vacuum pump is connected in communication with the input end of the separation hopper through a pipeline. According to the characteristics that the active alumina powder is prone to arching and blocking, the suction hopper is uniformly rotated in the circumferential direction under the driving of the rotary platform, and the movable cantilever is retracted and extended with the material level self-weight, so that the suction port continuously changes the suction point position in the material layer and stirs the material, the powder compaction arching caused by fixed-point suction is avoided, and the suction port is effectively prevented from being blocked.

Description

Technical Field

[0001] This invention relates to the field of vacuum feeding equipment technology, and in particular to an automatic feeding device for activated alumina powder. Background Technology

[0002] Currently, the unloading of ton bags for fine powder materials such as activated alumina is still mainly done manually by breaking the bags and dumping them, or by setting up simple bag unloading stations. Since ton bags are large-package and large-volume operations, the amount of powder poured out at the moment of breaking the bag is large, and fine particles are scattered everywhere with the induced airflow. The dust concentration in the workshop is difficult to control, and the problems of material loss and deterioration of the operating environment have long existed. In addition, the manual unpacking, hoisting and dumping of materials is labor-intensive.

[0003] In the process of switching to vacuum suction feeding, the suction pipes are mostly fixed or simply lifted by a winch. Due to the high bulk density and poor flowability of activated alumina powder, it is easy to clump under pressure. When the suction port is fixed at the same material layer depth for a long time, it will gradually compact the surrounding powder. After the suction port is blocked, manual assistance is required to solve the blockage problem. As a result, the vacuum feeding of ton bag powder cannot meet the actual production requirements in terms of continuity, stability and airtightness. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic feeding device for activated alumina powder, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An automatic feeding device for activated alumina powder includes a vortex vacuum pump, a separating hopper, and an end-feeder. The end-feeder further includes a main frame. A rotary platform is fixedly mounted on the upper surface of the main frame. A rotary bearing is embedded in the rotary platform and rotated. A bracket is fixedly mounted on the rear side of the rotary platform. A rotary joint is fixedly mounted on the front side of the bracket. A third connector is fixedly mounted on the upper end of the rotary joint and connected to the input end of the vortex vacuum pump via a pipeline. The output end of the vortex vacuum pump is connected to the input end of the separating hopper via a pipeline. The rotary joint is suspended above the rotary bearing. A main shaft is inserted and fixedly mounted inside the rotary bearing. A fixed cantilever is fixedly mounted on the lower end of the main shaft via a connecting end. A movable cantilever is movably mounted inside the fixed cantilever. End caps are fixedly mounted on both ends of the movable cantilever. A suction hopper is fixedly mounted on the lower end face of the end cap via a connecting arm.

[0006] As a further preferred embodiment of the present invention, a control box is fixedly installed on one side of the end suction machine for controlling the operation of the electrical equipment of the entire device. Each support column of the main equipment frame is fixedly installed with a ton bag hook on one side facing the center of the main equipment frame. The ton bag hook can be used to hang the sling of the ton bag that has been moved to the ground inside the main equipment frame, so as to prevent the upper end of the ton bag from falling down and affecting the feeding as the material decreases.

[0007] As a further preferred embodiment of the present invention, a winch is fixedly installed on the upper surface of the main equipment frame located on one side of the rotary platform. A steel cable is wound on the drum of the winch. One end of the steel cable passes through the upper surface of the main equipment frame and extends downward to the top of the suction hopper, where a hook is fixedly installed. The winch, in conjunction with the steel cable and the hook, can be used to lift and return the suction hopper to its original position after the material has been loaded.

[0008] As a further preferred embodiment of the present invention, a rotary seal is rotatably installed inside the rotary joint, and a central rotating sleeve is inserted and rotatably installed inside the rotary seal. The lower end of the central rotating sleeve is fixedly connected to the upper end of the main shaft. Thus, when the main shaft rotates in cooperation with the rotary platform and the rotary bearing, the air passage between the main shaft and the vortex vacuum pump can be ensured, and no torque interference will be caused to the pipeline connecting the third joint and the vortex vacuum pump.

[0009] As a further preferred embodiment of the present invention, a hollow cavity is provided inside the spindle, a connecting seat is fixedly installed at the lower end of the connecting end, a first connector is fixedly installed on one side of the connecting end, and the first connector is connected to the connecting end and the hollow cavity inside the spindle.

[0010] As a further preferred embodiment of the present invention, the fixed cantilever is provided with a guide sliding hole at an angle. A protective sleeve base is fixedly installed on both sides of the fixed cantilever near the opening of the guide sliding hole. One end of the protective sleeve base extends along the axial extension line of the guide sliding hole. The guide sliding hole is used to provide conditions for guiding the sliding of the movable cantilever, while the protective sleeve base provides a foundation for the installation of one end of the corrugated protective sleeve.

[0011] As a further preferred embodiment of the present invention, the movable cantilever is inserted and slidably installed in the guide slide hole, and the two end caps are respectively fixedly installed with corrugated sleeves on one side of the corresponding sleeve base. The end of the corrugated sleeve away from the end cap is fixedly installed at one end of the corresponding sleeve base through a connecting ring, so that when the movable cantilever slides along the guide slide hole, the movable cantilever and the guide slide hole can be protected to prevent external impurities from entering the sliding gap between the movable cantilever and the guide slide hole.

[0012] As a further preferred embodiment of the present invention, a suction port is fixedly installed at the lower end of the suction hopper, and multiple protective rods are fixedly installed on the outer circumference of the suction hopper. The protective rods can prevent the bag body of the ton bag from being sucked to the suction port position by negative pressure during the material feeding operation in the ton bag, causing blockage of the suction port. A hanging ring is fixedly installed on the suction hopper above the protective rods. The hanging ring facilitates the connection between the hook and the suction hopper. A second connector is fixedly installed at the upper end of the suction hopper. The second connector has multiple air holes opened on the outer circumference, and the second connector is connected to the suction hopper and the suction mouth body. The second connector and the first connector are connected by a corrugated pipe. When one end of the corrugated pipe is inserted and fixedly installed on the second connector, it must be located above the air holes, so that the air holes can provide air replenishment for the vacuum feeding of the suction hopper, realizing the functions of preventing the ton bag from being flattened and assisting in the fluidization of materials.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the active alumina powder in the ton bag can be directly vacuum-fed without the need to open the bag and transfer the material, which greatly reduces powder dust and material loss. The ton bag hook can fix the bag body strap to prevent the bag mouth from falling down and burying the suction port after the material level drops, which is suitable for large packaging ton bag operation scenarios. To address the issue of activated alumina powder being prone to arching and clogging, a rotary platform drives the suction hopper to rotate at a uniform speed in the circumferential direction. In conjunction with the movable cantilever extending and retracting with the weight of the material, the suction port continuously changes its suction point within the material layer and agitates the material, avoiding fixed-point suction that causes powder compaction and arching, and effectively preventing the suction port from clogging. Attached Figure Description

[0014] Figure 1 This is a front view of the main structure of the present invention; Figure 2 This is a schematic diagram of the first state of the end-feeder of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the second state of the end-feeder of the present invention; Figure 6 This is a cross-sectional schematic diagram of the assembly state of the rotating structure, main shaft, and connecting end of the present invention. Figure 7 for Figure 6 Enlarged view of point C in the middle; Figure 8 This is a cross-sectional schematic diagram of the fixed cantilever and the movable cantilever in their assembled state according to the present invention; Figure 9 for Figure 8Enlarged view at point D Figure 10 This is a schematic cross-sectional view of the fixed cantilever and sheath foundation of the present invention; Figure 11 This is a schematic diagram of the movable cantilever structure of the present invention; Figure 12 This is a schematic diagram of the suction hopper structure of the present invention.

[0015] In the diagram: 1. Vortex vacuum pump; 2. Separating hopper; 3. End suction machine; 4. Main equipment frame; 5. Rotary platform; 6. Rotary bearing; 7. Support; 8. Rotary joint; 9. Main shaft; 10. Connecting end; 11. Fixed cantilever; 12. Movable cantilever; 13. End cap; 14. Connecting arm; 15. Suction hopper; 16. Control box; 17. Ton bag hook; 18. Winch; 19. Corrugated pipe; 20. Connecting seat; 21. First joint; 22. Guide slide hole; 23. Sheath foundation; 24. Connecting ring; 25. Corrugated sheath; 26. Suction port; 27. Protective rod; 28. Hanging ring; 29. ​​Second joint; 30. Air hole; 31. Steel cable; 32. Hook; 33. Rotary seal; 34. Central rotating sleeve; 35. Third joint. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-12 As shown, the present invention provides an automatic feeding device for activated alumina powder, comprising a vortex vacuum pump 1, a separating hopper 2, and an end-feeder 3. The end-feeder 3 further includes a main equipment frame 4, a rotary platform 5 fixedly mounted on the upper surface of the main equipment frame 4, a rotary bearing 6 embedded in the rotary platform 5, a bracket 7 fixedly mounted on the rear side of the rotary platform 5, a rotary joint 8 fixedly mounted on the front side of the bracket 7, and a third connector 35 fixedly mounted on the upper end of the rotary joint 8 and connected to the vortex vacuum pump via a pipeline. The input end of pump 1 is connected, and the output end of vortex vacuum pump 1 is connected to the input end of separation hopper 2 through a pipeline. Rotary joint 8 is suspended above slewing bearing 6. Main shaft 9 is installed and fixedly installed inside slewing bearing 6. Fixed cantilever 11 is fixedly installed at the lower end of main shaft 9 through connecting end 10. Movable cantilever 12 is movably installed inside fixed cantilever 11. End caps 13 are fixedly installed at both ends of movable cantilever 12. Suction hopper 15 is fixedly installed at the lower end face of lower end cap 13 through connecting arm 14.

[0018] In this embodiment, a control box 16 is fixedly installed on one side of the end suction machine 3. The control box 16 is used for operation and inspection after the equipment is powered on. During use, after the equipment is powered on, the rotation direction of the vortex vacuum pump 1, the closing status of the discharge valve of the separating hopper 2, and the braking reliability of the winch 18 are checked item by item on the control box 16. It is also confirmed that the discharge port of the separating hopper 2 has been connected to the downstream conveying or packaging station. Each support of the main equipment frame 4 is fixedly installed with a ton on one side facing the center of the main equipment frame 4. When using the bag hook 17, first use a forklift to transport the ton bag to the working position inside the main equipment frame 4, with the bag opening facing upwards and placed in the center. Untie the bag opening rope and roll the outer sealing film to the outside of the bag body. Then, hang the four straps of the ton bag on the corresponding bag hook 17. When hanging, lift it up appropriately to tighten the bag body to prevent the bag opening from falling and burying the suction port 26 due to the subsequent drop in material level. After the material in the ton bag is sucked up and unloading is completed, remove the straps from the ton bag hook 17, fork away the empty bag and replace it with a new bag.

[0019] In this embodiment, a winch 18 is fixedly installed on the upper surface of the main equipment frame 4 located on one side of the rotary platform 5. A steel cable 31 is wound on the drum of the winch 18. One end of the steel cable 31 passes through the upper surface of the main equipment frame 4 and extends downward to the upper part of the suction hopper 15, where a hook 32 is fixedly installed. After the preparation is complete, the winch 18 is controlled by the control box 16 to release the steel cable 31, so that the suction hopper 15 sinks into the material layer under its own weight. After the suction hopper 15 is in place, the steel cable 31 should retain an appropriate amount of slack. When the material in the ton bag is sucked up, the winch 18 is controlled to continue releasing the steel cable 31, and then the steel cable 31 is retracted. The hook 32, together with the hanging ring 28, lifts the suction hopper 15 above the bag opening.

[0020] In this embodiment, a rotary seal 33 is rotatably installed inside the rotary joint 8. A central rotating sleeve 34 is inserted and rotatably installed inside the rotary seal 33. The lower end of the central rotating sleeve 34 is fixedly connected to the upper end of the main shaft 9. A hollow cavity is formed inside the main shaft 9. A connecting seat 20 is fixedly installed at the lower end of the connecting end 10. A first connector 21 is fixedly installed on one side of the connecting end 10, and the first connector 21 communicates with the connecting end 10 and the hollow cavity inside the main shaft 9. A guide sliding hole 22 is obliquely formed inside the fixed cantilever 11. Sheath bases 23 are fixedly installed on both sides of the fixed cantilever 11 near the opening of the guide sliding hole 22. One end of the sheath base 23 runs along the guide sliding hole 22. Extending along the axial extension line, the movable cantilever 12 passes through and slides within the guide hole 22. Two end caps 13 are respectively fixedly installed with corrugated sleeves 25 on one side of the corresponding sleeve base 23. The end of the corrugated sleeve 25 away from the end cap 13 is fixedly installed at one end of the corresponding sleeve base 23 via a connecting ring 24. During the process of the suction hopper 15 sinking into the material layer under its own weight, the movable cantilever 12 extends outward along the guide hole 22 of the fixed cantilever 11, and the two corrugated sleeves 25 extend synchronously. When the suction is completed and the suction hopper 15 is lifted, the movable cantilever 12 slides obliquely upward along the guide hole 22 and completely retracts into the fixed cantilever 11, and the corrugated sleeves 25 retract synchronously. A suction port 26 is fixedly installed at one end of the suction hopper 15. Multiple protective rods 27 are fixedly installed along the outer circumference of the suction hopper 15. A hanging ring 28 is fixedly installed above the protective rods 27 of the suction hopper 15. A hook 32 is attached to the hanging ring 28. After the suction hopper 15 is lowered, the hook 32 is removed from the hanging ring 28, allowing the suction hopper 15 to descend with its own weight as the material level in the ton bag decreases. After the material in a single bag is completely sucked up, the winch 18 continues to release the steel cable 31, allowing the hook 32 at one end of the steel cable 31 to be attached to the hanging ring 28. A second connector 29 is fixedly installed at the upper end of the suction hopper 15. The second connector 29 has multiple air holes 30 along its outer circumference, and the second connector 29 is connected to the suction hopper 15. The hopper 15 and the suction port 26 are connected. The second connector 29 and the first connector 21 are connected by a corrugated pipe 19. Thus, when the powder in the ton bag is sucked in through the suction port 26, it enters the separation hopper 2 for sedimentation and separation. The gas is discharged by the vortex vacuum pump 1. During the suction process, the air replenishment status of the air hole 30 and the feeding sound of the suction port 26 should be continuously monitored. Air replenishment can prevent the ton bag from being sucked out under negative pressure and can also promote the fluidization of agglomerated powder. When the material in a single bag is completely sucked out, the vortex vacuum pump 1 should continue to run idle for half a minute to one minute to remove the residual powder in the pipeline before stopping the machine. Then, the discharge valve of the separation hopper 2 should be opened to drain the accumulated material and remove the powder adhering to the surface of the suction port 26 and the protective rod 27.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding device for activated alumina powder, characterized in that: The system includes a vortex vacuum pump (1), a separating hopper (2), and an end-feeder (3). The end-feeder (3) also includes a main equipment frame (4). A rotary platform (5) is fixedly installed on the upper surface of the main equipment frame (4). A rotary bearing (6) is embedded in the rotary platform (5). A bracket (7) is fixedly installed on the rear side of the rotary platform (5). A rotary joint (8) is fixedly installed on the front side of the bracket (7). A third connector (35) is fixedly installed on the upper end of the rotary joint (8) and connected to the input end of the vortex vacuum pump (1) through a pipeline. The output end of the vacuum pump (1) is connected to the input end of the separating hopper (2) through a pipeline, and the rotary joint (8) is suspended above the slewing bearing (6). A main shaft (9) is installed and fixedly installed inside the slewing bearing (6). A fixed cantilever (11) is fixedly installed at the lower end of the main shaft (9) through the connecting end (10). A movable cantilever (12) is movably installed inside the fixed cantilever (11). End caps (13) are fixedly installed at both ends of the movable cantilever (12). A suction hopper (15) is fixedly installed at the lower end face of the end cap (13) through the connecting arm (14).

2. The automatic feeding device for activated alumina powder according to claim 1, characterized in that: A control box (16) is fixedly installed on one side of the end suction machine (3), and a ton bag hook (17) is fixedly installed on the side of each support of the main equipment frame (4) facing the center of the main equipment frame (4).

3. The automatic feeding device for activated alumina powder according to claim 1, characterized in that: A winch (18) is fixedly installed on the upper surface of the main equipment frame (4) located on one side of the rotary platform (5). A steel cable (31) is wound on the drum of the winch (18). One end of the steel cable (31) passes through the upper surface of the main equipment frame (4) and extends downward to the upper part of the suction hopper (15) and is fixedly installed with a hook (32).

4. The automatic feeding device for activated alumina powder according to claim 1, characterized in that: A rotary seal (33) is rotatably installed inside the rotary joint (8). A central rotating sleeve (34) is inserted and rotatably installed inside the rotary seal (33). The lower end of the central rotating sleeve (34) is fixedly connected to the upper end of the main shaft (9).

5. The automatic feeding device for activated alumina powder according to claim 4, characterized in that: The spindle (9) has a hollow cavity inside. A connecting seat (20) is fixedly installed at the lower end of the connecting end (10). A first connector (21) is fixedly installed on one side of the connecting end (10), and the first connector (21) is connected to the connecting end (10) and the hollow cavity inside the spindle (9).

6. The automatic feeding device for activated alumina powder according to claim 1, characterized in that: The fixed cantilever (11) has a guide sliding hole (22) obliquely opened inside. Both sides of the fixed cantilever (11) are fixedly installed with a sheath base (23) near the opening of the guide sliding hole (22). One end of the sheath base (23) extends along the axial extension line of the guide sliding hole (22).

7. The automatic feeding device for activated alumina powder according to claim 6, characterized in that: The movable cantilever (12) is inserted and slidably installed in the guide slide hole (22). The two end caps (13) are respectively fixedly installed with corrugated sleeves (25) on one side of the corresponding sleeve base (23). The end of the corrugated sleeve (25) away from the end cap (13) is fixedly installed at one end of the corresponding sleeve base (23) through the connecting ring (24).

8. The automatic feeding device for activated alumina powder according to claim 1, characterized in that: The lower end of the suction hopper (15) is fixedly installed with a suction port (26). Multiple protective rods (27) are fixedly installed on the outer circumference of the suction hopper (15). A hanging ring (28) is fixedly installed on the suction hopper (15) above the protective rods (27). A second connector (29) is fixedly installed on the upper end of the suction hopper (15). Multiple air holes (30) are opened on the outer circumference of the second connector (29). The second connector (29) is connected to the cavity of the suction hopper (15) and the suction port (26). The second connector (29) is connected to the first connector (21) through a corrugated pipe (19).

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