Emergency aluminum oxide feeding device for electrolytic aluminum

Abstract

The utility model discloses an electrolytic aluminum emergency aluminum oxide feeding device, which belongs to the field of aluminum oxide feeding devices and comprises an unpacking hopper and a feeding chassis arranged at the lower end of the unpacking hopper, and the unpacking hopper is in contact connection with the feeding chassis. A cutter frame is arranged in the unpacking hopper, a baffle inclining outwards is arranged on the upper edge of the unpacking hopper, armrest frames are fixedly arranged at the two ends of the inner side of the baffle and comprise fixing bases arranged on the baffle, armrest rods are movably connected to the fixing bases, and armrests are arranged at the free ends of the armrest rods. The unpacking hopper has the advantages that the unpacking hopper can be used more flexibly, a whole set of loading system can be replaced at the key moment of production, a bag can be conveniently cut open without external force, and the situation that materials are not completely thrown due to the fact that the bag loses filler and collapses during discharging is avoided. And the feeding efficiency and effect of the bagged aluminum oxide are further improved.

Description

Technical Field

[0001] The utility model relates to an alumina feeding device, in particular to an emergency alumina feeding device for electrolytic aluminum. Background Art

[0002] The core equipment of the purification system in the electrolytic aluminum industry is the bag-type dust collector. Alumina is both the raw material for electrolytic aluminum production and the adsorbent for the purification system. Ensuring an uninterrupted supply of alumina is the most basic requirement for electrolytic production. At the same time, the feed amount plays a vital role in the adsorption of fluorides and the control of emission data.

[0003] At present, the supply of alumina generally adopts the method of transferring alumina to material silos by tank trucks. However, during production, canned alumina may not be supplied or the material supply may be insufficient for a short period of time due to uncontrollable external factors such as weather and logistics routes. At this time, the alumina is generally bagged and then fed into production to ensure the normal production of the electrolytic cell and the compliance of emission data. Therefore, it is necessary to design an efficient, accurate and stable bagged alumina feeding device to replace the feeding of alumina cans.

[0004] At the front end of the electrolytic aluminum production line, the alumina raw materials must be poured out of the packaging bags and sent to the electrolytic cell through the material screen. In the prior art, when using bagged alumina, the bags are generally turned over and the alumina is poured into the silo. This feeding method is slow because the turning action is difficult to control; another method is to manually put the alumina in the bag into the silo. This method is not only inefficient but also very laborious to operate; because the packaging bags are relatively large and each bag weighs 1000kg, most of them need to be lifted by a crane and sent to the top of the workstation. The bottom of the packaging bag is cut open by a person with a cutter, and the raw materials can fall down. Manual unpacking not only has high labor costs but also low efficiency. In addition, the cross cutter configured in the unpacking area can be used to cut the bottom of the material so that the material slides down by its own gravity. However, the falling only relies on the material's own gravity, resulting in low feeding efficiency. In addition, after the bag is cut open with a cutter, the diameter is difficult to adjust with the diameter of the silo feed port, affecting the feeding effect.

[0005] In view of this, the inventor conducted in-depth research on how to provide a feeding device that can feed quickly, efficiently, accurately and stably, and thus the present case was created. Utility Model Content

[0006] In order to overcome the problems of low efficiency, high labor cost, and inconvenient unpacking and feeding of bagged alumina in the prior art, the utility model provides an electrolytic aluminum emergency alumina feeding device, comprising an unpacking hopper and a feeding chassis arranged at the lower end of the unpacking hopper, wherein the unpacking hopper is in contact with the feeding chassis;

[0007] A cutting knife holder is arranged inside the unpacking hopper, and an outwardly inclined baffle is arranged on the upper edge of the unpacking hopper. Handrail frames are fixedly arranged at both ends of the inner side of the baffle. The handrail frame includes a fixing seat arranged on the baffle, a handrail rod is movably connected to the fixing seat, and a handrail is arranged at the free end of the handrail rod.

[0008] A feeding chassis is arranged at the lower end of the unpacking hopper, so that the unpacking hopper can be used to feed tanks of different diameters or chutes of different widths, so that the unpacking hopper can be used more flexibly and can replace a whole set of loading systems at critical moments of production. A cutting knife frame is fixedly arranged inside the unpacking hopper. When the bagged alumina is transported to the upper end of the unpacking hopper, the bag is cut by the cutting knife frame to make the alumina fall into the hopper. No external force is required and the operation is convenient. An outwardly inclined baffle is arranged on the upper edge of the unpacking hopper, which is beneficial for blocking the alumina that surges when the alumina powder is fed downward. In addition, handrails are arranged at both ends of the inner side of the baffle to provide certain support for the alumina bag to prevent the bag from collapsing due to loss of filler during feeding, to avoid incomplete material feeding, and to further improve the feeding efficiency and effect of bagged alumina.

[0009] Furthermore, one end of the handrail rod is fixedly connected to the handrail, and the other end of the handrail rod is rotatably connected to the fixing seat. A torsion spring is arranged between the fixing seat and the handrail rod, and the torsion spring, the fixing seat and the handrail rod are all detachably connected.

[0010] Furthermore, the feeding chassis includes a supporting platform and a plurality of supporting rods, wherein the supporting rods are arranged at the bottom of the supporting platform, the supporting rods are abutted against the supporting platform, and a feeding port corresponding to the unpacking hopper is arranged in the middle of the supporting platform.

[0011] Through the above technical scheme, when the diameter of the storage tank body or the width of the chute connected to the unpacking hopper is larger than the unpacking hopper, a feeding chassis is set under the unpacking hopper. If the diameter of the storage tank body or the width of the chute is larger than the feeding chassis, a dry support rod needs to be set at the lower end of the feeding chassis to abut against it so that the feeding can proceed smoothly. The feeding port is set on the unloading port to make it more convenient to feed alumina.

[0012] Furthermore, the unpacking hopper includes a hopper and a discharge port, the discharge port is welded to the bottom of the hopper, one end of the hopper close to the discharge port is set to an inverted cone, and a plurality of supporting legs are provided at the position where the hopper begins to become an inverted cone. The supporting legs are placed on the supporting platform, and a cutting knife holder is fixedly provided at the upper inner end of the hopper.

[0013] Furthermore, the cutting blade holder is composed of three cutting blades, the top of the cutting blade is fixedly connected in a cone shape on the side facing away from the blade, the free end of the cutting blade is fixedly connected to the inner wall of the hopper close to the baffle side, and the height of the cutting blade is higher than the height of the hopper.

[0014] Through the above technical solution, a conical cutting knife frame composed of three cutting blades higher than the hopper is arranged inside the hopper, so that the alumina bags can be cut more easily and the materials can fall faster, which further effectively improves the feeding efficiency.

[0015] Furthermore, a plurality of vibrators are arranged on the side wall of the hopper, and the vibrators are evenly fixed on the outer side wall of the hopper close to the discharge port.

[0016] Furthermore, the feeding port is sleeved on the discharge port, the shape and size of the feeding port match the discharge port, and a plurality of hanging rings are evenly arranged on the upper edge of the baffle.

[0017] Furthermore, the baffle is smoothly connected to the upper edge of the hopper, and the upper edge of the hopper and the discharge port are both regular polygons.

[0018] Furthermore, the feeding device also includes an electric hoist, and a hook is provided on the electric hoist.

[0019] Furthermore, the size of the support platform is larger than the size of the cross section of the upper end of the hopper.

[0020] Beneficial effects:

[0021] The beneficial effects of the technical solution of the utility model are as follows:

[0022] (1) A feeding chassis is provided at the lower end of the unpacking hopper, which can be used to conveniently feed the unpacking hopper into tanks of different diameters, so that the unpacking hopper can be used more flexibly and can replace a whole set of loading systems at critical moments of production. A cutting knife frame is fixedly provided inside the unpacking hopper. When the bagged alumina is transported to the upper end of the unpacking hopper, the bag is cut by the cutting knife frame to make the alumina fall into the hopper. No external force is required and the operation is convenient, which further improves the feeding efficiency. An outwardly inclined baffle is provided on the upper edge of the unpacking hopper, which is helpful to block the alumina that surges when the alumina powder is fed downward. In addition, handrails provided at both ends of the inner side of the baffle provide certain support for the bag to prevent the bag from collapsing due to loss of filler during feeding, and to prevent incomplete material feeding, thereby further improving the feeding efficiency and effect of the bagged alumina.

[0023] (2) In order to ensure that in the absence of canned transportation of alumina, bagged alumina can be used quickly and efficiently to maintain electrolytic production, designing and manufacturing a special hopper to pack bagged alumina is a feasible measure to solve the problem of material supply in an emergency. Providing a feeding chassis under the hopper can facilitate the hopper to be placed more stably above the storage tank or chute. When the diameter of the storage tank or the width of the chute is larger than the feeding chassis, it is necessary to provide a dry support rod at the lower end of the feeding chassis to abut against the feeding chassis so that the feeding can proceed smoothly. It is more convenient to feed alumina by setting the feeding port on the discharge port.

[0024] (3) A handrail is provided on the inner side of the baffle, one end of the handrail is rotatably connected to the handrail and the other end is rotatably connected to the handrail, and a torsion spring is torsionally connected between the limit block and the handrail, which is beneficial to prevent the bagged alumina from collapsing due to the falling of the alumina when unloading. At this time, the alumina left in the bag does not fall completely, causing material waste, avoiding this situation and further improving the efficiency of feeding. It can effectively protect the production environment, reduce the work intensity of workers, and improve production efficiency, and solve the problem that some bagged materials are difficult to unload due to moisture absorption, resulting in agglomeration and bridging. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the structure of an emergency alumina feeding device for electrolytic aluminum according to the utility model;

[0027] Figure 2 It is a top view of an unpacking hopper of an emergency alumina feeding device for electrolytic aluminum according to the utility model;

[0028] Figure 3 It is a plan view of an emergency alumina feeding device for electrolytic aluminum according to the utility model;

[0029] Figure 4 It is an enlarged view of a handrail frame of an emergency alumina feeding device for electrolytic aluminum of the utility model;

[0030] In the figure, 1. unpacking hopper; 2. feeding chassis; 3. cutting knife frame; 4. baffle; 5. handrail frame; 6. fixing seat; 7. handrail rod; 8. handrail; 9. torsion spring; 10. support platform; 11. support rod; 12. feeding port; 13. hopper; 14. discharge port; 15. support leg; 16. cutting blade; 17. lifting ring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] This implementation makes the unpacking hopper more flexible to use and can replace a whole set of loading systems at critical moments of production. It is convenient to cut the bag without external force, and avoids incomplete material delivery caused by the bag collapsing due to the loss of fillers during unloading, further improving the efficiency and effect of bagged alumina feeding. The specific implementation is as follows:

[0033] like Figure 1-4 As shown, an emergency alumina feeding device for electrolytic aluminum comprises an unpacking hopper 1 and a feeding bottom plate 2 arranged at the lower end of the unpacking hopper 1, and the unpacking hopper 1 and the feeding bottom plate 2 are in contact and connected;

[0034] A cutting knife holder 3 is arranged inside the unpacking hopper 1, and an outwardly inclined baffle 4 is arranged on the upper edge of the unpacking hopper 1. Handrail frames 5 are fixedly arranged at both ends of the inner side of the baffle 4. The handrail frame 5 includes a fixed seat 6 arranged on the baffle 4, and a handrail rod 7 is movably connected to the fixed seat 6. The free end of the handrail rod 7 is provided with a handrail 8.

[0035] As a preferred embodiment, one end of the handrail rod 7 is fixedly connected to the handrail 8, and the other end of the handrail rod 7 is rotatably connected to the fixed seat 6. A torsion spring 9 is arranged between the fixed seat 6 and the handrail rod 7, and the torsion spring 9, the fixed seat 6 and the handrail rod 7 can be detachably connected.

[0036] During specific implementation, a handrail frame 5 is arranged on the inner side of the baffle 4, one end of the handrail rod 7 is rotatably connected to the handrail frame 5 and the other end is rotatably connected to the handrail 8, a torsion spring 9 is arranged between the fixed seat 6 and the handrail rod 7 to ensure the rotation angle of the handrail rod 7, so that the handrail 8 can slowly become parallel to the handrail rod 7 when the handrail rod 7 falls, which is beneficial for preventing the bagged alumina from collapsing due to the falling of the alumina during feeding. At this time, the alumina remaining in the bag does not fall completely, causing material waste. Avoiding this situation also further improves the feeding efficiency.

[0037] As a preferred embodiment, the feeding chassis 2 includes a supporting platform 10 and a plurality of supporting rods 11. The supporting rods 11 are arranged at the bottom of the supporting platform 10. The supporting rods 11 are abutted against the supporting platform 10. A feeding port 12 corresponding to the unpacking hopper 1 is arranged in the middle of the supporting platform 10.

[0038] Here, setting a feeding chassis 2 below the hopper 13 can facilitate placing the hopper 13 more stably above the storage tank or the chute. When the diameter of the storage tank body or the width of the chute is larger than the feeding chassis 2, it is necessary to set a dry support rod 11 at the lower end of the feeding chassis 2 to abut against the feeding chassis 2 so that the feeding can proceed smoothly. The feeding port 12 is set on the discharge port 14 to make the feeding of alumina more convenient.

[0039] As a preferred embodiment, the unpacking hopper 1 includes a hopper 13 and a discharge port 14, the discharge port 14 is welded to the bottom of the hopper 13, and one end of the hopper 13 close to the discharge port 14 is set to an inverted cone. A plurality of support legs 15 are provided at the position where the hopper 13 begins to become an inverted cone. The support legs 15 are placed on the support platform 10, and a cutting knife holder 3 is fixedly provided at the upper inner end of the hopper 13.

[0040] As a preferred embodiment, the cutting blade holder 3 is composed of three cutting blades 16, the top of the cutting blade 16 is fixedly connected in a cone shape on the side facing away from the blade, the free end of the cutting blade 16 is fixedly connected to the inner wall of the hopper 13 on the side close to the baffle 4, and the height of the cutting blade 16 is higher than the height of the hopper 13.

[0041] Here, a conical cutting blade holder 3 composed of three cutting blades 16 is arranged inside the hopper 13 and is higher than the hopper 13, so that the alumina bags can be cut more easily and the materials can fall faster, which further effectively improves the feeding efficiency. In addition, the height of the cutting blades 16 needs to be higher than the height of the hopper 13, so that when the bagged alumina is placed above the hopper 13, the bottom of the bag is cut and the material slides down from the middle position, and the alumina powder will not surge up in large quantities to pollute the production environment.

[0042] As a preferred embodiment, a plurality of vibrators are provided on the side wall of the hopper 13 , and the vibrators are evenly fixed on the outer side wall of the hopper 13 near the discharge port 14 .

[0043] As a preferred embodiment, the feeding port 12 is sleeved on the discharge port 14 , the shape and size of the feeding port 12 match the discharge port 14 , and a plurality of hanging rings 17 are evenly arranged on the upper edge of the baffle 4 .

[0044] As a preferred embodiment, the baffle 4 is smoothly connected to the upper edge of the hopper 13, and the upper edge of the hopper 13 and the discharge port are both regular polygons.

[0045] As a preferred embodiment, the feeding device further comprises an electric hoist, and a hook is arranged on the electric hoist.

[0046] As a preferred embodiment, the size of the support platform 10 is larger than the cross-section of the upper end of the hopper 13 .

[0047] Here, the size of the support platform 10 is larger than the cross-section of the upper end of the hopper 13. At the same time, in order to ensure easy and convenient feeding, the inner diameter and height of the upper end of the hopper 13 are slightly larger than the size of the bagged alumina bag, thereby ensuring the feeding efficiency and preventing the material from stirring up alumina powder when falling, and further protecting the production environment.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An emergency alumina feeding device for electrolytic aluminum, characterized in that: It comprises an unpacking hopper (1) and a feeding chassis (2) arranged at the lower end of the unpacking hopper (1), wherein the unpacking hopper (1) and the feeding chassis (2) are in contact and connection; A cutting knife frame (3) is arranged inside the unpacking hopper (1), an outwardly inclined baffle (4) is arranged on the upper edge of the unpacking hopper (1), handrail frames (5) are fixedly arranged at both ends of the inner side of the baffle (4), the handrail frame (5) comprises a fixed seat (6) arranged on the baffle (4), a handrail rod (7) is movably connected to the fixed seat (6), and a handrail (8) is arranged at the free end of the handrail rod (7).

2. The electrolytic aluminum emergency alumina feeding device according to claim 1, characterized in that: One end of the handrail rod (7) is fixedly connected to the handrail (8), and the other end of the handrail rod (7) is rotatably connected to the fixing seat (6). A torsion spring (9) is provided between the fixing seat (6) and the handrail rod (7), and the torsion spring (9), the fixing seat (6) and the handrail rod (7) are all detachably connected.

3. The emergency alumina feeding device for electrolytic aluminum according to claim 1, characterized in that: The feeding chassis (2) comprises a supporting platform (10) and a plurality of supporting rods (11), wherein the supporting rods (11) are arranged at the bottom of the supporting platform (10), the supporting rods (11) are in contact with the supporting platform (10), and a feeding port (12) corresponding to the unpacking hopper (1) is arranged in the middle of the supporting platform (10).

4. The emergency alumina feeding device for electrolytic aluminum according to claim 3, characterized in that: The unpacking hopper (1) comprises a hopper (13) and a discharge port (14), wherein the discharge port (14) is welded to the bottom of the hopper (13), and one end of the hopper (13) close to the discharge port (14) is arranged in an inverted cone shape. A plurality of support legs (15) are arranged at the position where the hopper (13) begins to become an inverted cone, and the support legs (15) are placed on the support platform (10). A cutting knife holder (3) is fixedly arranged at the inner upper end of the hopper (13).

5. The emergency alumina feeding device for electrolytic aluminum according to claim 4, characterized in that: The cutting blade holder (3) is composed of three cutting blades (16), the top end of each cutting blade (16) being fixedly connected in a cone shape on the side away from the blade, the free end of each cutting blade (16) being fixedly connected to the inner wall of the hopper (13) on the side close to the baffle (4), and the height of each cutting blade (16) being higher than the height of the hopper (13).

6. The electrolytic aluminum emergency alumina feeding device according to claim 4, characterized in that: A plurality of vibrators are arranged on the side wall of the hopper (13), and the vibrators are evenly fixed on the outer side wall of the hopper (13) close to the discharge port (14).

7. The emergency alumina feeding device for electrolytic aluminum according to claim 4, characterized in that: The feeding port (12) is sleeved on the feeding port (14); the shape and size of the feeding port (12) match those of the feeding port (14); and a plurality of hanging rings (17) are evenly arranged on the upper edge of the baffle (4).

8. The emergency alumina feeding device for electrolytic aluminum according to claim 4, characterized in that: The baffle (4) is smoothly connected to the upper edge of the hopper (13), and the upper edge of the hopper (13) and the discharge port are both regular polygons.

9. The emergency alumina feeding device for electrolytic aluminum according to claim 1, characterized in that: The feeding device also includes an electric hoist, and a hook is arranged on the electric hoist.

10. The emergency alumina feeding device for electrolytic aluminum according to claim 4, characterized in that: The size of the support platform (10) is larger than the size of the cross-section of the upper end of the hopper (13).

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