Fluorine-containing material mixing device

By designing a fluorine-containing material mixing device in the electrolytic aluminum production process, the problem that the smoking hood cannot effectively recover fluorine in the flue gas is solved, and the fluorine content in the alumina raw material is achieved to meet the requirements, ensure the stability of the electrolytic process, and improve the utilization rate of the material.

CN222684798UActive Publication Date: 2025-03-28BINZHOU HONGNUO NEW MATERIALS CO LTD +1
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Patent Information

Application Number
CN202421188995.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-28
Publication Date
2025-03-28
Estimated Expiration
2034-05-28

AI Technical Summary

Technical Problem

During the electrolytic aluminum production process, the smoking hood cannot effectively recover the fluorine in the flue gas, resulting in a low fluorine content in the recovered alumina materials and cannot reach the ideal value, which may affect the electrolysis process.

Method used

A fluorine-containing material mixing device is designed to supplement the fluorine-containing material of the alumina raw material in the mixing silo, so that the fluorine content in the recovered alumina raw material and normal alumina raw material meets the requirements. The device includes a feed silo, a feed trough, a vibrating motor, a mixing silo, a feed pipe and a discharge pipe. Through the coordination of the vibrating motor and a mixing rod, the alumina raw material and a fluorine-containing material are fully mixed.

Benefits of technology

By replenishing fluorine-containing materials in the mixing silo, we ensure that the fluorine content in the recovered alumina raw materials meets the requirements, and can be re-added to the electrolytic tank without affecting the electrolytic process, improving the utilization rate of materials and reducing waste of materials.

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Abstract

The utility model belongs to the technical field of material mixing, and particularly relates to a fluorine-containing material mixing device which comprises a discharging bin, a discharging pipe fixedly connected to the bottom of the discharging bin, an obliquely-arranged discharging groove formed in the bottom of the discharging pipe, a vibration motor fixedly connected to the side wall of the discharging groove, and a material mixing bin arranged on the side, away from the discharging bin, of the discharging groove. The mixing bin is provided with a feeding port communicated with the discharging groove, one side of the mixing bin is fixedly connected with a material supplementing pipe penetrating into the mixing bin, and a discharging pipe is arranged at the bottom of the mixing bin. The fluorine-containing material mixing device disclosed by the utility model has the effect that the recycled aluminum oxide raw material can be added into the electrolytic bath again without influencing the electrolysis process.
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Description

Technical Field

[0001] The utility model belongs to the technical field of material mixing, in particular to a fluorine-containing material mixing device. Background Art

[0002] In the process of electrolytic aluminum production, alumina raw materials are needed. In order to meet the requirements of the production process, a certain amount of fluorine-containing materials need to be mixed into the alumina raw materials. A fume hood is set above the electrolytic aluminum tank to recover the alumina raw materials in the flue gas, hoping to recycle the alumina raw materials after dust removal. However, the fume hood cannot effectively recover the fluorine in the flue gas, resulting in a low fluorine content in the recovered alumina material, which cannot reach the ideal value. If the recovered alumina raw materials are directly added back into the electrolytic cell, it may affect the electrolysis process. Utility Model Content

[0003] In order to solve the problems in the above-mentioned background technology, the utility model provides a fluorine-containing material mixing device, which supplements the alumina raw material with fluorine-containing material in the mixing bin so that the fluorine content in the recovered alumina raw material and the normal alumina raw material meets the requirements, and the recovered alumina raw material can be added back into the electrolytic cell without affecting the electrolysis process, thereby improving the utilization rate of the material and reducing the waste of the material.

[0004] The utility model provides a fluorine-containing material mixing device, comprising a feed bin, a feed pipe is fixedly connected to the bottom of the feed bin, an inclined feed trough is arranged at the bottom of the feed pipe, a vibration motor is fixedly connected to the side wall of the feed trough, a mixing bin is arranged on the side of the feed trough away from the feed bin, the mixing bin is provided with a feed inlet connected to the feed trough, a feeding pipe is fixedly connected to one side of the mixing bin and penetrates into the mixing bin, and a discharge pipe is arranged at the bottom of the mixing bin.

[0005] By adopting the above technical scheme, normal alumina raw materials with fluorine content reaching the requirement and recycled alumina raw materials are added into the feeding bin, the alumina raw materials in the feeding bin fall into the feeding trough through the feeding pipe, the vibration motor works, and the alumina raw materials in the feeding trough fall into the mixing bin after passing through the feeding port under the action of the vibration motor. The feeding pipe replenishes fluorine-containing materials into the mixing bin, so that the fluorine-containing materials are mixed with the alumina materials to replenish the fluorine content in the recycled alumina raw materials, so that the fluorine content in the mixed alumina raw materials reaches the required value, and the alumina raw materials in the mixing bin are discharged through the discharging pipe for use. By replenishing the alumina raw materials with fluorine-containing materials in the mixing bin, the fluorine content in the recycled alumina raw materials and the normal alumina raw materials reaches the requirement, the recycled alumina raw materials can be added back into the electrolytic cell without affecting the electrolysis process, thereby improving the utilization rate of materials and reducing the waste of materials.

[0006] Furthermore, the discharge pipe is connected to a first solenoid valve.

[0007] By adopting the above technical solution, the first solenoid valve is opened, and the material in the discharge bin falls into the discharge chute.

[0008] Furthermore, the discharge pipe is connected to a second solenoid valve.

[0009] By adopting the above technical solution, the second solenoid valve is opened, and the material in the mixing bin is discharged through the discharge pipe.

[0010] Furthermore, a driving motor is fixedly connected to the top of the mixing bin, an output shaft of the driving motor penetrates into the mixing bin and is fixedly connected to a rotating rod, and a plurality of stirring rods are fixedly connected to the rotating rod.

[0011] By adopting the above technical solution, the output shaft of the driving motor drives the stirring rod to rotate through the rotating rod, and the stirring rod stirs the materials in the mixing bin, which has the effect of mixing the aluminum oxide raw material and the fluorine-containing material more fully.

[0012] Furthermore, a rotating plate is abutted against the upper surface of the material discharge chute, and the rotating plate is rotatably connected to the material discharge chute via a hinge.

[0013] By adopting the above technical solution, the rotating plate covers the top of the chute, and the rotating plate reduces the possibility of material splashing out of the chute from the top of the chute during the vibration of the chute, thereby reducing the possibility of material waste.

[0014] Furthermore, a fixing component for fixing the rotating plate is provided between the material discharge chute and the rotating plate.

[0015] By adopting the above technical solution, when the rotating plate abuts against the upper surface of the lower material chute, the fixing assembly fixes the rotating plate, thereby increasing the stability of the rotating plate covering the top of the lower material chute.

[0016] Furthermore, the fixing assembly includes a first fixing block fixedly connected to the side wall of the feed chute, a first magnet fixedly connected to the upper surface of the first fixing block, a second fixing block fixedly connected to the side wall of the rotating plate, and a second magnet fixedly connected to the lower surface of the second fixing block that abuts against the first magnet.

[0017] By adopting the above technical solution, when the rotating plate covers the material discharge chute, the first magnet and the second magnet attract and abut against each other, and the first magnet and the second magnet have the effect of increasing the stability when the rotating plate covers the material discharge chute.

[0018] Furthermore, a fixing rod is fixedly connected to the inner wall of the discharge chute, a reserved groove is provided on the upper surface of the fixing rod, a support rod is provided in the reserved groove, a connecting rod rotatably connected to the fixing rod is fixedly connected to the end of the support rod, and a plug-in groove is provided on the lower surface of the rotating plate for plugging in one end of the support rod away from the connecting rod.

[0019] By adopting the above technical solution, when it is necessary to check the material discharge situation in the material discharge chute, the rotating plate is rotated upward to open the material discharge chute, and the support rod is rotated so that the support rod is away from one end of the connecting rod and plugged into the plug-in slot. The support rod supports the rotating plate, and the staff does not need to hold the rotating plate all the time to keep the material discharge chute open, which has a labor-saving effect.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] (1) The feeding pipe adds fluorine-containing materials to the mixing bin, so that the fluorine-containing materials are mixed with the alumina materials to supplement the fluorine content in the recovered alumina raw materials, so that the fluorine content in the mixed alumina raw materials reaches the required value. The alumina raw materials in the mixing bin are discharged through the discharge pipe for use. By adding fluorine-containing materials to the alumina raw materials in the mixing bin, the fluorine contents in the recovered alumina raw materials and the normal alumina raw materials reach the required value. The recovered alumina raw materials can be added back into the electrolytic cell without affecting the electrolytic process, thereby improving the utilization rate of materials and reducing the waste of materials.

[0022] (2) The output shaft of the driving motor drives the stirring rod to rotate through the rotating rod, and the stirring rod stirs the materials in the mixing bin, which has the effect of mixing the alumina raw material and the fluorine-containing material more fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0025] Figure 2 This is a schematic diagram of the structure of the stirring rod in this embodiment;

[0026] Figure 3 This is a schematic diagram of the structure of the hinge in this embodiment;

[0027] Figure 4 This is a schematic diagram of the structure of the first magnet and the second magnet in this embodiment;

[0028] Figure 5 Schematic diagram of the structure of the support rod in this embodiment.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. feed bin; 11. feed pipe; 111. first solenoid valve; 2. feed trough; 21. vibration motor; 22. fixing rod; 221. reserved groove; 222. support rod; 223. connecting rod; 3. mixing bin; 31. feed inlet; 32. feeding pipe; 33. discharge pipe; 331. second solenoid valve; 34. drive motor; 35. rotating rod; 351. stirring rod; 4. rotating plate; 41. hinge; 42. plug-in slot; 5. fixing assembly; 51. first fixing block; 511. first magnet; 52. second fixing block; 521. second magnet. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in 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 belong to the protection scope of the utility model.

[0031] The following is combined with Figure 1 To Attachment Figure 5 And specific embodiments describe the present invention in detail.

[0032] like Figure 1 and Figure 2 As shown, the utility model provides a fluorine-containing material mixing device, including a feed bin 1, a feed pipe 11 is fixedly connected to the bottom of the feed bin 1, the feed pipe 11 is connected to the inside of the feed bin 1, and a first solenoid valve 111 is fixedly connected to the feed pipe 11. A feed trough 2 is provided at the bottom of the feed bin 1, the feed trough 2 is inclined, and the lower end of the feed pipe 11 is placed in the feed trough 2.

[0033] A mixing bin 3 is provided on the side of the feeding trough 2 away from the feeding bin 1, and a feeding port 31 is provided on the side of the mixing bin 3 close to the feeding trough 2. The feeding trough 2 is connected to the feeding port 31, and a pair of outer walls of the feeding trough 2 are respectively fixedly connected to a plurality of vibration motors 21. A feeding pipe 32 penetrating into the interior of the mixing bin 3 is fixedly connected to the side of the mixing bin 3 away from the feeding trough 2, and the fluorine-containing material is added to the interior of the mixing bin 3 through the feeding pipe 32. A discharge pipe 33 is fixedly connected to the bottom of the mixing bin 3, and the discharge pipe 33 is connected to the interior of the mixing bin 3, and a second solenoid valve 331 is fixedly connected to the discharge pipe 33.

[0034] Alumina raw materials with a fluorine content that meets the requirements are added to the lower bin 1, and the recycled alumina raw materials that have been dust-removed are also added to the lower bin 1, and the recycled alumina raw materials are mixed with the normal alumina raw materials. The first solenoid valve 111 is opened, and the alumina raw materials in the lower bin 1 fall into the lower trough 2 through the lower pipe 11, and the vibration motor 21 works. The alumina raw materials in the lower trough 2 flow to the side close to the mixing bin 3 under the action of the vibration motor 21, and the alumina raw materials in the lower trough 2 fall into the mixing bin 3 after passing through the feed port 31.

[0035] The feeding pipe 32 feeds the fluorine-containing material into the mixing bin 3, so that the fluorine-containing material is mixed with the alumina material to supplement the fluorine content in the recovered alumina raw material, so that the fluorine content in the mixed alumina raw material reaches the required value. After the alumina raw material and the fluorine-containing material are mixed for a period of time, the second solenoid valve 331 is opened, and the alumina raw material in the mixing bin 3 is discharged through the discharge pipe 33 for use.

[0036] By supplementing the alumina raw material with fluorine-containing materials in the mixing bin 3, the fluorine content in the recovered alumina raw material and the normal alumina raw material can meet the requirements. The recovered alumina raw material can be added back into the electrolytic cell without affecting the electrolysis process, thereby improving the utilization rate of the material and reducing the waste of the material.

[0037] A driving motor 34 is fixedly connected to the top of the mixing bin 3, and the output shaft of the driving motor 34 penetrates into the interior of the mixing bin 3. A rotating rod 35 is fixedly connected to the output shaft of the driving motor 34, and a plurality of stirring rods 351 are fixedly connected to the vertical side wall of the rotating rod 35. The output shaft of the driving motor 34 drives the rotating rod 35 to rotate, and the rotating rod 35 drives the stirring rod 351 to rotate, and the stirring rod 351 stirs the materials in the mixing bin 3, which has the effect of mixing the alumina raw material and the fluorine-containing material more fully.

[0038] like Figure 3 and Figure 4 As shown, a rotating plate 4 is provided on the upper surface of the material chute 2, and a pair of hinges 41 are connected between the rotating plate 4 and one side wall of the material chute 2, and the rotating plate 4 is rotatably connected to the material chute 2 through the hinges 41. The rotating plate 4 covers the top of the material chute 2, and the rotating plate 4 reduces the possibility of the material splashing out of the material chute 2 from the top of the material chute 2 during the vibration of the material chute 2, thereby reducing the waste of materials.

[0039] A fixing assembly 5 is provided between the side of the material chute 2 away from the hinge 41 and the rotating plate 4. When the rotating plate 4 abuts against the upper surface of the material chute 2, the fixing assembly 5 fixes the rotating plate 4 to increase the stability of the rotating plate 4 covering the top of the material chute 2.

[0040] The fixing assembly 5 includes a first fixing block 51 fixedly connected to the side wall of the material discharge chute 2, and a second fixing block 52 fixedly connected to the side of the rotating plate 4 away from the hinge 41. A first magnet 511 is fixedly connected to the upper surface of the first fixing block 51, and a second magnet 521 is fixedly connected to the lower surface of the second fixing block 52. When the rotating plate 4 covers the material discharge chute 2, the first magnet 511 and the second magnet 521 are attracted and abutted, and the first magnet 511 and the second magnet 521 increase the stability of the rotating plate 4 when covering the material discharge chute 2.

[0041] When it is necessary to check the material discharge situation in the material discharge chute 2, the rotating plate 4 is rotated upwards, the second magnet 521 and the first magnet 511 are separated, and the material discharge chute 2 can be opened. After the inspection is completed, the rotating plate 4 is rotated downwards to make the first magnet 511 and the second magnet 521 attract and abut.

[0042] like Figure 4 and Figure 5 As shown, a fixing rod 22 is fixedly connected to the inner wall of the material chute 2, and the upper surface of the fixing rod 22 is in the same plane as the upper surface of the material chute 2. A reserved groove 221 is provided on the upper surface of the fixing rod 22, and a support rod 222 is provided in the reserved groove 221. A connecting rod 223 is fixedly connected to one end of the support rod 222 close to the first fixing block 51, and the connecting rod 223 is rotatably connected to the fixing rod 22, and a plug-in groove 42 is provided on one side of the rotating plate 4 close to the material chute 2.

[0043] When the rotating plate 4 is rotated upward to open the material discharge chute 2, the staff rotates the support rod 222 so that the end of the support rod 222 away from the connecting rod 223 rotates away from the reserved groove 221, and the end of the support rod 222 away from the connecting rod 223 is plugged into the plug-in groove 42. The support rod 222 supports the rotating plate 4, and the staff does not need to hold the rotating plate 4 all the time to keep the material discharge chute 2 in the open state, which has a labor-saving effect.

[0044] The support rod 222 is separated from the insertion groove 42 , the support rod 222 is rotated into the reserved groove 221 , and the rotating plate 4 is rotated downward, so that the rotating plate 4 covers the material discharge chute 2 .

[0045] The implementation principle of the fluorine-containing material mixing device provided by the utility model is as follows: the alumina raw material with the fluorine content reaching the required normal level is added into the lower bin 1, and the alumina raw material after dust removal treatment is also added into the lower bin 1. The first solenoid valve 111 is opened, and the alumina raw material in the lower bin 1 falls into the lower trough 2 through the lower pipe 11, and the alumina raw material in the lower trough 2 falls into the mixing bin 3 after passing through the feed port 31.

[0046] The feeding pipe 32 adds fluorine-containing materials into the mixing bin 3 so that the fluorine-containing materials are mixed into the alumina materials. The driving motor 34 drives the rotating rod 35 to rotate, and the rotating rod 35 drives the stirring rod 351 to rotate. The stirring rod 351 mixes the materials in the mixing bin 3. After the alumina raw material and the fluorine-containing material are mixed for a period of time, the second solenoid valve 331 is opened, and the alumina raw material in the mixing bin 3 is discharged through the discharge pipe 33 for use.

[0047] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A fluorine-containing material mixing device, characterized in that: The invention comprises a feeding bin (1), wherein a feeding pipe (11) is fixedly connected to the bottom of the feeding bin (1), a feeding trough (2) arranged obliquely is arranged at the bottom of the feeding pipe (11), a vibration motor (21) is fixedly connected to the side wall of the feeding trough (2), a mixing bin (3) is arranged on the side of the feeding trough (2) away from the feeding bin (1), the mixing bin (3) is provided with a feeding port (31) connected to the feeding trough (2), one side of the mixing bin (3) is fixedly connected with a feeding pipe (32) penetrating into the mixing bin (3), a discharging pipe (33) is arranged at the bottom of the mixing bin (3), a driving motor (34) is fixedly connected to the top of the mixing bin (3), an output shaft of the driving motor (34) penetrates into the mixing bin (3) and is fixedly connected to a rotating rod (35), and the rotating rod (35) is fixedly connected to a plurality of stirring rods (351).

2. A fluorine-containing material mixing device according to claim 1, characterized in that: The feed pipe (11) is connected to a first solenoid valve (111).

3. A fluorine-containing material mixing device according to claim 1, characterized in that: The discharge pipe (33) is connected to a second solenoid valve (331).

4. A fluorine-containing material mixing device according to claim 1, characterized in that: The upper surface of the material discharge chute (2) is in contact with a rotating plate (4), and the rotating plate (4) is rotatably connected to the material discharge chute (2) via a hinge (41).

5. A fluorine-containing material mixing device according to claim 4, characterized in that: A fixing component (5) for fixing the rotating plate (4) is provided between the material discharge chute (2) and the rotating plate (4).

6. A fluorine-containing material mixing device according to claim 5, characterized in that: The fixing assembly (5) comprises a first fixing block (51) fixedly connected to the side wall of the material discharge chute (2), a first magnet (511) being fixedly connected to the upper surface of the first fixing block (51), a second fixing block (52) being fixedly connected to the side wall of the rotating plate (4), and a second magnet (521) abutting against the first magnet (511) being fixedly connected to the lower surface of the second fixing block (52).

7. A fluorine-containing material mixing device according to claim 4, characterized in that: A fixing rod (22) is fixedly connected to the inner wall of the material discharge chute (2), a reserved groove (221) is provided on the upper surface of the fixing rod (22), a support rod (222) is provided in the reserved groove (221), a connecting rod (223) rotatably connected to the fixing rod (22) is fixedly connected to the end of the support rod (222), and a plug-in groove (42) is provided on the lower surface of the rotating plate (4) for plugging in one end of the support rod (222) away from the connecting rod (223).