Electrolytic cell alumina powder feeding device

Abstract

The utility model relates to the technical field of electrolytic cell, concretely is a kind of electrolytic cell aluminium oxide powder feeding device, including material box, the upper and lower opening of feeding pipe is fixedly connected in material box top, the lower part of feeding pipe is located inside material box;The lower part of feeding pipe lateral wall is provided with several feeding side hole groups from top to bottom, each feeding side hole group includes several feeding side holes;The side of feeding side hole is provided with the cover plate for covering feeding side hole, and cover plate is connected with feeding pipe by hanging rope;The utility model is provided with several feeding side hole groups from top to bottom in the lower part of feeding pipe lateral wall, can reduce the height of material unloading, realizes grading unloading;The utility model is provided with cover plate, can cover the feeding side hole without unloading, prevent material from the feeding side hole without unloading and run out to cause material material box to tumble and boil.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic cell technology, specifically to an alumina powder feeding device for an electrolytic cell. Background Technology

[0002] The electrolytic cell feed hopper is located at the top of the electrolytic cell. The material in the feed hopper is added to the electrolytic cell through a quantitative feeder at the bottom. The feed port of the electrolytic cell feed hopper is at the top of the feed hopper. When the material is fed, the height difference of the material is large. The alumina powder will tumble and boil in the feed hopper under the action of air pressure and high height difference. The continuous boiling of the material will cause some material to leak into the electrolytic cell through the top of the feed hopper, affecting the electrolytic cell process. Utility Model Content

[0003] The main objective of this invention is to provide an alumina powder feeding device for electrolytic cells, in order to solve the problem in the prior art where, during feeding, the material in the electrolytic cell hopper boils and churns, causing the material to leak from the top of the hopper into the electrolytic cell, thus affecting the electrolytic cell process.

[0004] To achieve the above objectives, this utility model provides an alumina powder feeding device for an electrolytic cell, including a material box, a feeding pipe with openings at the top and bottom fixedly connected to the top of the material box, and the lower part of the feeding pipe located inside the material box; a plurality of feeding side hole groups are arranged from top to bottom on the lower side wall of the feeding pipe, each feeding side hole group including a plurality of feeding side holes; a cover plate for covering the feeding side hole is provided on one side of the feeding side hole, and the cover plate is connected to the feeding pipe by a hanging rope.

[0005] Furthermore, the feeding pipe is cylindrical, and the cover plate is an arc-shaped plate that matches the side of the feeding pipe.

[0006] Furthermore, each feed side hole group includes multiple feed side holes evenly distributed around the feed tube.

[0007] Furthermore, a pneumatic chute is installed above the feeding pipe, and the pneumatic chute is connected to the top of the feeding pipe through a cylindrical cloth bag.

[0008] Furthermore, the pneumatic chute includes an air chamber, a material chamber, and a porous permeable plate located between the air chamber and the material chamber.

[0009] Furthermore, a pressure relief vent is provided on the top of the hopper.

[0010] This invention reduces the material discharge height by providing several feeding side holes from top to bottom on the lower side wall of the feeding pipe. The material initially discharges from the bottom opening of the feeding pipe, and after the bottom opening is submerged by the material, it discharges from the side feeding holes. As the material gradually rises, the discharge position gradually moves upward, achieving graded discharge. This reduces the height from which the material falls.

[0011] This invention, by setting a cover plate, can cover the non-discharging feeding side hole, preventing material from escaping from the non-discharging feeding side hole and causing the material to tumble and boil inside the material box; when the feeding side hole starts discharging, the cover plate can open from the inside to the outside under the pushing action of the material, allowing the material to be discharged outward. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0013] Figure 1 A schematic diagram of an embodiment of an alumina powder feeding device for an electrolytic cell;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] In the diagram: 1. Material bin; 101. Pressure relief port; 2. Feeding pipe; 201. Feeding side hole; 3. Cover plate; 4. Pneumatic chute; 401. Air chamber; 402. Material chamber; 403. Perforated ventilation plate; 5. Tubular cloth bag; 6. Hanging rope. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] like Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, an alumina powder feeding device for an electrolytic cell is provided, including a material box 1. A cylindrical feeding pipe 2 with openings at the top and bottom is fixedly connected to the top of the material box 1. The feeding pipe 2 has a diameter of 12 cm and a length of 150 cm. The lower part of the feeding pipe 2 is located inside the material box 1. Two feeding side hole groups are provided from top to bottom on the lower side wall of the feeding pipe 2. The distances between the two feeding side hole groups and the bottom end of the feeding pipe 2 are 30 cm and 90 cm, respectively. Each feeding side hole group includes four feeding side holes 201 evenly distributed around the feeding pipe 2. The diameter of the feeding side holes 201 is 3 cm. A cover plate 3 for covering the feeding side holes 201 is provided on one side of the feeding side holes 201. The cover plate 3 is connected to the feeding pipe 2 by a hanging rope 6.

[0018] A pneumatic chute 4 is provided above the feeding pipe 2, and the pneumatic chute 4 is connected to the top of the feeding pipe 2 through a cylindrical cloth bag 5.

[0019] The top of the material box 1 is provided with a pressure relief port 101; the air flowing out of the pneumatic chute 4 enters the material box 1, and the pressure relief port 101 is used to discharge the air in the material box 1.

[0020] In some embodiments, the cover plate 3 is an arc-shaped plate that mates with the side of the feeding tube 2; the cover plate 3 can fit well with the side of the feeding tube 2.

[0021] In some embodiments, the pneumatic chute 4 includes an air chamber 401, a material chamber 402, and a porous permeable plate 403 located between the air chamber 401 and the material chamber 402.

[0022] The flow path of alumina powder is as follows: the material passes through the pneumatic chute 4 and the cylindrical cloth bag 5 in sequence, is conveyed to the feeding pipe 2, and then falls into the material box 1 through the feeding pipe 2. The falling process of the material is divided into 3 stages:

[0023] In the first stage, material is fed through the opening at the bottom of the feeding pipe 2;

[0024] Second stage: After the bottom opening of the feeding pipe 2 is submerged by the material, the material is discharged from the feeding side hole 201 below;

[0025] Third stage: After the material has submerged the lower feeding side hole 201, the material is discharged from the upper feeding side hole 201.

[0026] Since the material is conveyed through the pneumatic chute 4, air also follows the material into the hopper 1 during the process of the material entering the hopper 1. Previously, the drop height of the material was relatively large, and the material often boiled and overflowed from the pressure relief port 101. In this embodiment, several feeding side holes are provided from top to bottom on the lower side wall of the feeding pipe 2, which can reduce the material discharge height. As the material gradually rises, the discharge position gradually moves upward, thereby realizing graded feeding. This can reduce the drop height of the material, and the problem of material overflowing from the pressure relief port 101 no longer occurs after using this embodiment.

[0027] In this embodiment, a cover plate 3 is provided, which can cover the non-discharging feeding side hole 201 under the action of gravity, preventing the material from running out of the non-discharging feeding side hole 201 and causing the material box 1 to tumble and boil; when the feeding side hole 201 starts to discharge material, the cover plate 3 can open from the inside to the outside under the pushing action of the material, so that the material can be discharged outward.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An alumina powder feeding device for an electrolytic cell, comprising a material box (1), wherein a feeding pipe (2) with openings at the top and bottom is fixedly connected to the top of the material box (1), and the lower part of the feeding pipe (2) is located inside the material box (1); characterized in that, The lower side wall of the feeding pipe (2) is provided with several feeding side hole groups from top to bottom, and each feeding side hole group includes several feeding side holes (201); a cover plate (3) for covering the feeding side hole (201) is provided on one side of the feeding side hole (201), and the cover plate (3) is connected to the feeding pipe (2) by a hanging rope (6).

2. The electrolytic cell alumina powder feeding device as described in claim 1, characterized in that, The feeding tube (2) is cylindrical, and the cover plate (3) is an arc-shaped plate that fits with the side of the feeding tube (2).

3. The electrolytic cell alumina powder feeding device as described in claim 1, characterized in that, Each feeding side hole group includes multiple feeding side holes (201) evenly distributed around the feeding pipe (2).

4. The electrolytic cell alumina powder feeding device as described in claim 1, characterized in that, A pneumatic chute (4) is provided above the feeding pipe (2), and the pneumatic chute is connected to the top of the feeding pipe (2) through a cylindrical cloth bag (5).

5. The electrolytic cell alumina powder feeding device as described in claim 4, characterized in that, The pneumatic chute (4) includes an air chamber (401), a material chamber (402), and a porous permeable plate (403) located between the air chamber (401) and the material chamber (402).

6. The electrolytic cell alumina powder feeding device as described in claim 1, characterized in that, The top of the hopper (1) is provided with a pressure relief port (101).

Images