A feeding device for purification of electrolytic aluminum fume

Abstract

The utility model relates to the technical field of flue gas purification devices, in particular to a feeding device for purifying electrolytic aluminum flue gas, comprising a storage box, the bottom end of the storage box is fixedly connected to a flotation box, the lower annular array of the storage box is penetrated by a plurality of discharge holes, the bottom end of the storage box is fixedly provided with a boiling plate, one side of the flotation box is fixedly provided with an air inlet pipe, the top end of the storage box is fixedly provided with a material pipe, the bottom end of the material pipe is fixedly provided with a drop pipe 1, the upper part of one side of the material pipe is fixedly provided with a hopper, a filter plate is fixedly provided on the middle inner wall of the material pipe, the lower fixed sleeve of the material pipe is provided with a fixed seat, the fixed seat is symmetrically rotated with a grinding roller, the top end of the fixed seat is fixedly provided with a drop pipe 2, and the top end of the drop pipe 2 is communicated with the internal space of the material pipe. The utility model can crush and grind the lumps in the material to avoid affecting the feeding effect of the device, and effectively improve the practicability of the device.

Description

Technical Field

[0001] The utility model relates to a feeding device for purifying electrolytic aluminum fume, belonging to the technical field of fume purification devices. Background Art

[0002] During the electrolysis of aluminum, flue gas is formed due to the ionization of F- in the cathode. During the electrolysis of aluminum, the bubbles on the cathode contain some free forms of fluoride, which burst on the surface of the liquid metal, causing volatiles such as silane, chlorosilane and fluorosilane to decompose, thereby generating flue gas. Therefore, it is necessary to purify the flue gas from the electrolysis of aluminum. In this process, a feeding device is required to evenly feed alumina powder into the flue gas.

[0003] According to the announcement number CN212426201U, a feeding device is disclosed, and in particular, a feeding device for electrolytic aluminum fume purification is disclosed, which belongs to the technical field of design and manufacturing of accessories for alumina production equipment. A feeding device for electrolytic aluminum fume purification with high feeding efficiency and good feeding efficiency uniformity is provided. The feeding device includes a flotation system and a storage box with a discharge hole on the lower side wall. The alumina in the storage box is suspended above the bottom plate of the storage box through the flotation system. When the above device is in use, the alumina powder is prone to moisture absorption and agglomeration during storage. Therefore, if these agglomerates are not processed, the discharge hole will be easily blocked, thereby affecting the feeding effect. Utility Model Content

[0004] The purpose of the utility model is to provide a feeding device for electrolytic aluminum fume purification. The utility model can crush and grind the lumps in the material to avoid affecting the feeding effect of the device, thereby effectively improving the practicability of the device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A feeding device for purifying electrolytic aluminum fume, comprises a storage box, the bottom end of the storage box is fixedly connected to a flotation box, the lower annular array of the storage box is penetrated by a plurality of discharge holes, the bottom end of the storage box is fixedly provided with a boiling plate, one side of the flotation box is fixedly provided with an air inlet pipe, the top end of the storage box is fixedly provided with a material pipe, the bottom end of the material pipe is fixedly provided with a drop pipe 1, the upper part of one side of the material pipe is fixedly provided with a material hopper, a filter plate is fixedly provided on the middle inner wall of the material pipe, the lower fixed sleeve of the material pipe is provided with a fixed seat, the fixed seat is symmetrically rotatably provided with a grinding roller, the top end of the fixed seat is fixedly provided with a drop pipe 2, the top end of the drop pipe 2 is communicated with the internal space of the material pipe, the bottom end of the fixed seat is fixedly provided with a drop pipe 3, the bottom end of the drop pipe 3 extends into the storage box and is fixedly connected to the drop pipe 1.

[0007] Furthermore, a motor 1 is fixedly embedded in the upper part of the material pipe, and a rotating rod is fixedly connected to the output end of the motor 1. The bottom end of the rotating rod extends into the material pipe, and a scraper rod is fixedly provided at the lower part of the rotating rod. The bottom end of the scraper rod abuts against the top end of the filter plate.

[0008] Furthermore, the scraper rod is made of silicone material.

[0009] Furthermore, a plurality of crushing cutters are fixedly provided in a circular array in the middle of the rotating rod.

[0010] Furthermore, a cavity 1 is opened inside the front side of the fixed seat, and a motor 2 is fixedly provided on the inner wall of one side of the cavity, and the output end of the motor 2 is fixedly connected to the front end of the rotating shaft on the adjacent grinding roller.

[0011] Furthermore, a second cavity is opened inside the rear side of the fixed seat, and the rear end of the upper shaft of the grinding roller extends into the second cavity. The rear side of the upper shaft of the grinding roller is fixedly sleeved with a gear, and the two gears are meshed.

[0012] Furthermore, the lower inner wall of the material tube is a funnel-shaped structure.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is provided with a crushing cutter and a grinding roller. When in use, the motor 1 drives the rotating rod to rotate, so that the rotating rod drives the scraper rod and the crushing cutter to rotate. The crushing cutter can break up the lumps in the material, and the scraper rod can scrape the material, so that the aluminum oxide powder can fall through the filter plate, and the large particles of aluminum oxide will fall into the fixed seat through the drop tube 2. The corresponding grinding roller is driven to rotate by the motor 2. At this time, the grinding roller will drive the gear to rotate, and the gear can drive another grinding roller to rotate, so that the large particles of material can be ground into powder through the grinding roller, and fall into the drop tube 1 through the drop tube 3, so that the material falls into the storage box and completes the feeding operation. The utility model can crush and grind the lumps in the material to avoid affecting the feeding effect of the device, thereby effectively improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of a feeding device for purifying electrolytic aluminum fume of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of a feeding device for purifying electrolytic aluminum fume of the utility model;

[0018] Figure 3 The utility model is a feeding device for purifying electrolytic aluminum fume. Figure 2 The enlarged view of point A in the middle;

[0019] Figure 4 It is a top view of a fixing seat and a material pipe of a feeding device for electrolytic aluminum fume purification according to the utility model;

[0020] Numbers in the figure: 1. Storage box; 2. Floatation box; 3. Discharge hole; 4. Boiling plate; 5. Air inlet pipe; 6. Material pipe; 7. Dropping pipe 1; 8. Hopper; 9. Filter plate; 10. Fixed seat; 11. Grinding roller; 12. Dropping pipe 2; 13. Dropping pipe 3; 14. Motor 1; 15. Rotating rod; 16. Scraper rod; 17. Crushing cutter; 18. Cavity 1; 19. Motor 2; 20. Cavity 2; 21. Gear. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] A feeding device for electrolytic aluminum fume purification comprises a storage box 1, the bottom end of the storage box 1 is fixedly connected to a flotation box 2, a plurality of discharge holes 3 are provided in a circular array in the lower part of the storage box 1, a boiling plate 4 is fixedly provided at the bottom end of the storage box 1, an air inlet pipe 5 is fixedly provided on one side of the flotation box 2, a material pipe 6 is fixedly provided at the top end of the storage box 1, a drop pipe 7 is fixedly provided at the bottom end of the material pipe 6, a hopper 8 is fixedly provided on the upper part of one side of the material pipe 6, and the A filter plate 9 is fixedly provided on the middle inner wall of the material pipe 6, a fixed seat 10 is provided on the lower fixed sleeve of the material pipe 6, a grinding roller 11 is symmetrically rotated on the fixed seat 10, a drop pipe 2 12 is fixedly provided on the top of the fixed seat 10, the top of the drop pipe 2 12 is communicated with the internal space of the material pipe 6, a drop pipe 3 13 is fixedly provided on the bottom end of the fixed seat 10, the bottom end of the drop pipe 3 13 extends into the material storage box 1 and is fixedly connected to the drop pipe 1 7.

[0024] Specifically, Figure 1-Figure 4 As shown, a motor 14 is fixedly embedded in the upper part of the material pipe 6, and a rotating rod 15 is fixedly connected to the output end of the motor 14. The bottom end of the rotating rod 15 extends into the material pipe 6, and a scraper rod 16 is fixedly provided at the lower part of the rotating rod 15. The bottom end of the scraper rod 16 abuts against the top end of the filter plate 9. The scraper rod 16 is made of silicone material. A plurality of crushing cutters 17 are fixedly provided in a circular array in the middle of the rotating rod 15. The rotating rod 15 is driven to rotate by the motor 14, so that the rotating rod 15 drives the scraper rod 16 and the crushing cutter 17 to rotate. The crushing cutter 17 can break up the lumps in the material, and the scraper rod 16 can scrape the material, so as to facilitate the aluminum oxide powder to fall through the filter plate 9, and the large particles of aluminum oxide will fall into the fixed seat 10 through the drop pipe 2 12.

[0025] Specifically, Figure 1-Figure 4As shown, a cavity 18 is provided inside the front side of the fixed seat 10, and a motor 2 is fixedly provided on the inner wall of one side of the cavity 18. The output end of the motor 2 19 is fixedly connected to the front end of the rotating shaft on the adjacent grinding roller 11, and a cavity 20 is provided inside the rear side of the fixed seat 10. The rear ends of the rotating shafts on the grinding rollers 11 extend into the cavity 20, and the rear sides of the rotating shafts on the grinding rollers 11 are fixedly sleeved with gears 21. The two gears 21 are meshed, and the corresponding grinding rollers 11 are driven to rotate by the motor 2 19. At this time, the grinding roller 11 will drive the gear 21 to rotate, and the gear 21 can drive another grinding roller 11 to rotate, so that the large particle materials can be ground into powder by the grinding roller 11, and fall into the drop tube 1 7 through the drop tube 3 13.

[0026] Example 2 Please refer to Figure 1-Figure 4 The difference between this embodiment and embodiment 1 is that the lower inner wall of the material pipe 6 is a funnel-shaped structure. By setting the inner wall to be funnel-shaped, it is convenient for the material to fall into the drop pipe 7.

[0027] Working principle of the utility model: when in use, alumina powder enters the material pipe 6 through the hopper 8, and at this time, the rotating rod 15 is driven to rotate by the motor 14, so that the rotating rod 15 drives the scraper rod 16 and the crushing cutter 17 to rotate, and the crushing cutter 17 can cut the lumps in the material into pieces, and the scraper rod 16 can scrape the material, so that the alumina powder can fall through the filter plate 9, and the large particles of alumina will fall into the fixed seat 10 through the drop pipe 2 12, and the corresponding grinding roller 11 is driven to rotate by the motor 2 19. At this time, the grinding roller 11 will drive the gear 21 to rotate, and the gear 21 can drive another grinding roller 11 to rotate, so that the large particles of material can be ground into powder through the grinding roller 11, and fall into the drop pipe 1 7 through the drop pipe 3 13, and then fall into the storage box 1, and the compressed gas enters the flotation box 2 through the air inlet pipe 5, so that the alumina powder is suspended through the boiling plate 4, and then delivered to the flue gas through the discharge hole 3.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for purification of electrolytic aluminum fume, comprising a storage box (1), characterized in that: The bottom end of the material storage box (1) is fixedly connected to a flotation box (2); a plurality of discharge holes (3) are formed in a circular array at the bottom of the material storage box (1); a boiling plate (4) is fixedly provided at the bottom end of the material storage box (1); an air inlet pipe (5) is fixedly provided at one side of the flotation box (2); a material pipe (6) is fixedly provided at the top end of the material storage box (1); a material drop pipe (7) is fixedly provided at the bottom end of the material pipe (6); a material hopper (8) is fixedly provided at the upper part of one side of the material pipe (6); and a material outlet (9) is fixedly provided on the inner wall of the middle part of the material pipe (6). A filter plate (9) is fixedly provided, a fixed seat (10) is provided at the lower fixed sleeve of the material pipe (6), a grinding roller (11) is symmetrically rotated on the fixed seat (10), a second drop pipe (12) is fixedly provided at the top of the fixed seat (10), the top of the second drop pipe (12) is communicated with the internal space of the material pipe (6), a third drop pipe (13) is fixedly provided at the bottom of the fixed seat (10), the bottom end of the third drop pipe (13) extends into the material storage box (1) and is fixedly connected to the first drop pipe (7).

2. The feeding device for purification of electrolytic aluminum fume according to claim 1 is characterized in that: A motor 1 (14) is fixedly embedded in the upper part of the material pipe (6), and a rotating rod (15) is fixedly connected to the output end of the motor 1 (14). The bottom end of the rotating rod (15) extends into the material pipe (6). A scraper rod (16) is fixedly provided at the lower part of the rotating rod (15), and the bottom end of the scraper rod (16) contacts the top end of the filter plate (9).

3. The feeding device for purification of electrolytic aluminum fume according to claim 2 is characterized in that: The scraper rod (16) is made of silicone material.

4. The feeding device for purification of electrolytic aluminum fume according to claim 3 is characterized in that: A plurality of crushing cutters (17) are fixedly arranged in an annular array in the middle of the rotating rod (15).

5. The feeding device for purification of electrolytic aluminum fume according to claim 1 is characterized in that: A cavity 1 (18) is provided inside the front side of the fixed seat (10), and a motor 2 (19) is fixedly provided on an inner wall of one side of the cavity 1 (18), and an output end of the motor 2 (19) is fixedly connected to the front end of a rotating shaft on the adjacent grinding roller (11).

6. The feeding device for purification of electrolytic aluminum fume according to claim 5 is characterized in that: A second cavity (20) is provided inside the rear side of the fixed seat (10), and the rear end of the upper shaft of the grinding roller (11) extends into the second cavity (20). A gear (21) is fixedly sleeved on the rear side of the upper shaft of the grinding roller (11), and the two gears (21) are meshed with each other.

7. The feeding device for purification of electrolytic aluminum fume according to claim 1 is characterized in that: The lower inner wall of the material pipe (6) is a funnel-shaped structure.

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