Aluminum oxide feeding device

Abstract

The utility model provides an aluminum oxide feeding device which aims at solving the technical problem that an electromagnetic valve for controlling feeding is high in failure rate. The feeding device comprises a hopper, the bottom of which is a discharge port; one end of the material guide groove is arranged below the material outlet, the other end of the material guide groove is obliquely arranged downwards, and a material uniformizing opening is formed in the side portion of the material guide groove; the material uniformizing plate is arranged on the material guide groove, one end of the material uniformizing plate is arranged on the material uniformizing opening, the other end of the material uniformizing plate is arranged on the side, away from the material uniformizing opening, of the material guide groove, and an included angle smaller than 90 degrees exists between the material uniformizing plate and the material guide groove. According to the technical scheme, redundant aluminum oxide in the material guide groove is subjected to flow dividing operation, the aluminum oxide remaining in the material guide groove is the required amount, control over the aluminum oxide amount is achieved through a simple mechanical structure, and therefore the feeding failure rate can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to a feeding mechanism, in particular to an aluminum oxide feeding device. Background Art

[0002] Alumina is one of the main raw materials for electrolytic aluminum. During the electrolytic aluminum process, the amount of aluminum produced by electrolysis in the aluminum electrolytic cell per unit time is rated due to various factors such as the specifications of the electrolytic cell, voltage, and current. Therefore, in order to ensure that the aluminum electrolytic cell continues to work within the maximum efficiency range, it is necessary to feed alumina raw materials into the aluminum electrolytic cell at a certain speed. If too much alumina is fed in per unit time, it will accumulate in the aluminum electrolytic cell, and too little will affect the production efficiency of the aluminum electrolytic cell.

[0003] The conventional technical solution is to control the feeding port through a solenoid valve. However, the solenoid valve works in a high-temperature environment for a long time, has a high failure rate, and results in high maintenance costs. Utility Model Content

[0004] In view of the technical problem that the electromagnetic valve controlling feeding in the prior art has a high failure rate, the utility model provides an aluminum oxide feeding device, which has the advantages of relying on a mechanical system to perform quantitative feeding and reducing feeding failures.

[0005] The technical solution of the utility model is:

[0006] A feeding device for aluminum oxide, comprising:

[0007] A hopper, the bottom of which is a discharge port;

[0008] A material guide trough, one end of which is arranged below the material outlet, and the other end of which is arranged obliquely downward, and a material mixing port is provided on the side of the material guide trough;

[0009] A material leveling plate is arranged on the material guiding trough, one end of the material leveling plate is placed on the material leveling port, and the other end is arranged on the side of the material guiding trough away from the material leveling port, and an angle less than 90° exists between the material leveling plate and the material guiding trough.

[0010] Optionally, it also includes:

[0011] A conveyor belt, one end of which is located below the material mixing port;

[0012] The input end of the elevator is arranged below the other end of the conveyor belt, and the output end of the elevator is located above the hopper.

[0013] Optionally, it also includes:

[0014] The baffle is arranged above the conveyor belt, located at the side of the material guide trough and close to the material mixing port, and the baffle is arranged in an inclined shape.

[0015] Optionally, the baffle is an arc-shaped structure.

[0016] Optionally, it also includes:

[0017] A material-diverting plate is arranged in the material-guiding groove and between the material-distributing port and the material hopper. The material-diverting plate is arranged parallel to the material-guiding groove and has a threaded hole on the top of the material-diverting plate.

[0018] A screw rod is matched with the threaded hole on the top of the material-diverting plate, and one end of the screw rod is rotatably arranged on the side of the material-guiding trough;

[0019] The motor is arranged at the other end of the screw, and the output shaft of the motor is connected to the end of the screw in a power manner.

[0020] Optionally, a guide hole is further provided on the material diverter plate, a guide rod is provided in the guide hole, two ends of the guide rod are fixedly arranged on two sides of the material guide groove, and the guide rod is parallel to the screw rod.

[0021] Optionally, the depth of the material stripping plate extending into the material guide groove is equal to the depth of the material mixing port, the top of the material stripping plate protrudes from the material guide groove, and the screw rod and the guide rod are both located outside the material guide groove.

[0022] Optionally, the material leveling plate is an arc-shaped structure, and the top of the material leveling plate has a buckle plate with an arc-shaped cross-section, and the buckle plate is concave toward the inner side of the material leveling plate.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] The material is fed into the guide trough through the hopper. The alumina in the guide trough slides downward under the action of gravity. Then, when it passes through the mixing port on the side of the guide trough, the alumina above the mixing port is discharged from the guide trough from the mixing port under the action of the mixing plate. The amount of alumina at the bottom of the guide trough is the required amount for the aluminum electrolytic cell.

[0025] In the present technical solution, the excess alumina in the guide trough is diverted so that the alumina remaining in the guide trough is the required amount, and the amount of alumina is controlled by a simple mechanical structure, thereby greatly reducing the failure rate of feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0028] Figure 2 It is an enlarged schematic diagram of the utility model. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0032] Example:

[0033] See also Figure 1 and Figure 2 A feeding device for aluminum oxide includes a hopper 1, a guide trough 2 and a material leveling plate 3. Specifically, the hopper 1 is used to store aluminum oxide raw materials, and the bottom of the hopper 1 is a discharge port, from which aluminum oxide is discharged. A guide trough 2 is arranged below the discharge port of the hopper 1, one end of the guide trough 2 is arranged below the discharge port, the guide trough 2 is arranged in an inclined shape relative to the horizontal plane, and the relative height of one end of the guide trough 2 close to the discharge port is higher than that of the other end.

[0034] A material mixing port 4 is arranged on the side of the middle part of the material guide trough 2. The material mixing port 4 is in the shape of an elongated strip, and its length direction is consistent with the length direction of the material guide trough 2. The top of the material mixing port 4 is located at the top of the material guide trough 2, and both are in a hollow structure.

[0035] The material leveling plate 3 is arranged on the material guide trough 2, and one end of the material leveling plate 3 is located on the material leveling port 4, and the other end of the material leveling plate 3 is arranged on the side of the material guide trough 2 away from the material leveling port 4. The projections of the material leveling plate 3 and the material guide trough 2 on the horizontal plane form an angle less than 90°, and the height of one end of the material leveling plate 3 located on the material leveling port 4 is relatively lower than the other end thereof.

[0036] The working principle of this embodiment is that the material is fed into the material guide trough 2 through the hopper 1, and the aluminum oxide in the material guide trough 2 slides downward under the action of gravity. Then, when passing through the material leveling port 4 on the side of the material guide trough 2, the aluminum oxide above the material leveling port 4 is discharged from the material guide trough 2 from the material leveling port 4 under the action of the material leveling plate 3. The amount of aluminum oxide at the bottom of the material guide trough 2 is the required amount of the aluminum electrolytic cell.

[0037] In this embodiment, the excess alumina in the guide trough 2 is diverted so that the alumina remaining in the guide trough 2 is the required amount. The amount of alumina is controlled by a simple mechanical structure, thereby greatly reducing the failure rate of feeding.

[0038] In one specific embodiment:

[0039] The feeding device further comprises a conveyor belt 5, an elevator and a baffle 7. The conveyor belt 5 is horizontally arranged below the guide trough 2, one end of the conveyor belt 5 is located below the material mixing port 4, the other end of the conveyor belt 5 is located on the input end of the elevator, and the output end of the elevator is located above the hopper 1.

[0040] After the above-mentioned material leveling plate 3 separates the excess alumina raw material in the material guide trough 2 from the material leveling port 4, the excess alumina raw material falls on the end of the conveyor belt 5, and the conveyor belt 5 transports the excess alumina raw material to the input end of the elevator. The elevator lifts the excess alumina raw material to the top of the hopper 1 and sends it back to the hopper 1.

[0041] In this process, when the material leveling plate 3 separates the excess alumina raw material from the material leveling port 4, part of the excess alumina raw material will fly away from the receiving area of ​​the conveyor belt 5 due to inertia. Therefore, a baffle plate 7 is arranged above this end of the conveyor belt 5, and the baffle plate 7 is arranged in an inclined shape. At the same time, the baffle plate 7 is located on the side of the material guide trough 2 and close to the material leveling port 4.

[0042] The baffle 7 can block the excess alumina raw material in the receiving area that is about to fly away from the conveyor belt 5. Generally, the baffle 7 is arranged to be arc-shaped, and the concave side is close to the material mixing port 4.

[0043] In another specific embodiment:

[0044] The feeding device further comprises a material-dividing plate 8, a screw rod 9, a motor 10 and a guide rod 11. Specifically, the material-dividing plate 8 is located in the material-guiding trough 2 and between the material-splitting port 4 and the material-discharging port. The plate surface of the material-dividing plate 8 is perpendicular to the bottom surface of the material-guiding trough 2, and the length direction of the material-dividing plate 8 is consistent with the length direction of the material-guiding trough 2.

[0045] A threaded hole and a guide hole are provided on the top of the material stripper plate 8, and a screw rod 9 is matched in the threaded hole. One end of the screw rod 9 is rotatably provided on one side of the material guide groove 2, and the other end of the screw rod 9 is coaxially connected to the output shaft of the motor 10, and the motor 10 is fixedly provided on the other side of the material guide groove 2.

[0046] A guide rod 11 is slidably disposed in the guide hole at the top of the material-diverting plate 8 , and two ends of the guide rod 11 are respectively fixedly disposed on both sides of the material-diverting groove 2 , and the length direction of the guide rod 11 is parallel to the length direction of the screw rod 9 .

[0047] Usually, the alumina raw material discharged from the discharge port of the hopper 1 will accumulate in the material guide trough 2 and slide downward, resulting in the alumina raw material being unable to be evenly spread in the material guide trough 2. As a result, when the material leveling plate 3 separates excess alumina raw material, there will be less alumina raw material in some positions.

[0048] Therefore, in this embodiment, a material shifting plate 8 is provided to shift the alumina raw materials in the material guide trough 2 upstream of the material shifting plate 3. The working principle is that the motor 10 drives the screw 9 to rotate forward and reverse regularly, thereby driving the material shifting plate 8 to move back and forth in the material guide trough 2, thereby shifting the accumulated alumina raw materials to the pit.

[0049] Preferably, the depth of the material stripper plate 8 extending into the material guide trough 2 is equal to the depth of the material sparging port 4, the top of the material stripper plate 8 protrudes from the material guide trough 2, and the screw rod 9 and the guide rod 11 are both located outside the material guide trough 2. By limiting the depth of the material stripper plate 8 extending into the material guide trough 2, it is avoided that pits are created in the alumina raw material again.

[0050] In another specific embodiment:

[0051] The material leveling plate 3 is an arc-shaped structure, and its concave side faces the discharge port. The top of the material leveling plate 3 has a buckle plate 6 with an arc-shaped cross section, and the buckle plate 6 is concave toward the inner side of the material leveling plate 3, and the extension direction of the buckle plate 6 is consistent with the extension direction of the material leveling plate 3. In this embodiment, the material leveling plate 3 is set as an arc structure, which can increase the length of the material leveling plate 3 in the material guide trough 2, thereby improving the material leveling ability. In addition, by providing the buckle plate 6, it is possible to prevent too much aluminum oxide raw material from turning over the material leveling plate 3.

[0052] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A feeding device for aluminum oxide, characterized in that: include: A hopper, the bottom of which is a discharge port; A material guide trough, one end of which is arranged below the material outlet, and the other end of which is arranged obliquely downward, and a material mixing port is provided on the side of the material guide trough; A material leveling plate is arranged on the material guiding trough, one end of the material leveling plate is placed on the material leveling port, and the other end is arranged on the side of the material guiding trough away from the material leveling port, and an angle less than 90° exists between the material leveling plate and the material guiding trough.

2. The aluminum oxide feeding device according to claim 1, characterized in that: Also includes: A conveyor belt, one end of which is located below the material mixing port; The input end of the elevator is arranged below the other end of the conveyor belt, and the output end of the elevator is located above the hopper.

3. The aluminum oxide feeding device according to claim 2, characterized in that: Also includes: The baffle is arranged above the conveyor belt, located at the side of the material guide trough and close to the material mixing port, and the baffle is arranged in an inclined shape.

4. The aluminum oxide feeding device according to claim 3, characterized in that: The baffle is an arc-shaped structure.

5. The aluminum oxide feeding device according to claim 1, characterized in that: Also includes: A material-diverting plate is arranged in the material-guiding groove and between the material-distributing port and the material hopper. The material-diverting plate is arranged parallel to the material-guiding groove and has a threaded hole on the top of the material-diverting plate. A screw rod is matched with the threaded hole on the top of the material-diverting plate, and one end of the screw rod is rotatably arranged on the side of the material-guiding trough; The motor is arranged at the other end of the screw, and the output shaft of the motor is connected to the end of the screw in a power manner.

6. The aluminum oxide feeding device according to claim 5, characterized in that: The material-diverting plate is also provided with a guide hole, in which a guide rod is provided, and two ends of the guide rod are fixedly arranged on two sides of the material-diverting groove, and the guide rod is parallel to the screw rod.

7. The aluminum oxide feeding device according to claim 6, characterized in that: The depth of the material-diverting plate extending into the material-guiding groove is equal to the depth of the material-splitting port, the top of the material-diverting plate protrudes from the material-guiding groove, and the screw rod and the guide rod are both located outside the material-guiding groove.

8. The aluminum oxide feeding device according to claim 1, characterized in that: The material leveling plate is an arc-shaped structure, and a buckle plate with an arc-shaped cross section is provided on the top of the material leveling plate, and the buckle plate is concave toward the inner side of the material leveling plate.

Images