CN218666331U - Aluminum fluoride and aluminum oxide mixing device for aluminum electrolysis cell - Google Patents
Aluminum fluoride and aluminum oxide mixing device for aluminum electrolysis cell Download PDFInfo
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- CN218666331U CN218666331U CN202222786615.4U CN202222786615U CN218666331U CN 218666331 U CN218666331 U CN 218666331U CN 202222786615 U CN202222786615 U CN 202222786615U CN 218666331 U CN218666331 U CN 218666331U
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Abstract
The utility model discloses an aluminium fluoride and aluminium oxide blending device for aluminium cell, including aluminium fluoride lower storage bin, material storage storehouse, parts such as PLC that are connected with material storage storehouse. The utility model discloses a flow detection device and the detection of carrying the aluminium oxide condition of flow of wind pressure in to the aluminium oxide pneumatic chute make PLC realize carrying out accurate automatic control to the unloading of aluminium fluoride, make aluminium fluoride and aluminium oxide evenly mix in can add the electrolysis trough in step after thoughtlessly joining, realized that aluminium fluoride evenly adds in succession evenly quantitatively.
Description
Technical Field
The utility model belongs to the technical field of electrolytic aluminum production, in particular to an aluminum fluoride and aluminum oxide blending device for an aluminum electrolytic cell.
Background
In the current domestic electrolytic aluminum production process, aluminum fluoride is used as an additive, and the blanking of the aluminum fluoride is generally carried out by independently operating aluminum fluoride blanking equipment and a timing blanking mode with a fixed blanking period. However, this kind of aluminium fluoride unloading equipment of independent operation, carry out 1 aluminium fluoride unloading after arriving the interval time in operation at every turn, can cause present time point aluminium fluoride unloading relatively more, along with time variation, the more close next unloading time point then aluminium fluoride content is less relatively, make aluminium fluoride content fluctuation increase in the electrolysis trough production process, electrolyte molecular ratio is unstable, be unfavorable for stable production, reduce the power consumption, and aluminium fluoride unloading equipment aluminium fluoride storehouse needs the manual work to add aluminium fluoride, because the electrolysis trough is many, intensity of labour is very big.
Therefore, the existing aluminum fluoride blanking equipment cannot realize synchronous blanking of aluminum fluoride and aluminum oxide, so that fluctuation of aluminum fluoride content is increased in the production process of an electrolytic cell, the molecular ratio of electrolyte is unstable, and the stability of electrolytic aluminum production is adversely affected. Therefore, it is highly desirable to develop an aluminum fluoride and alumina mixing device which can continuously, uniformly and quantitatively add aluminum fluoride to alumina in proportion according to the consumption of aluminum fluoride in an electrolytic cell and the delivery flow of alumina, and after the aluminum fluoride and the alumina are uniformly mixed, the aluminum fluoride and the alumina are synchronously added into the electrolytic cell together with the alumina blanking, so as to realize the continuous, uniform and quantitative addition of the aluminum fluoride.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned problem that current aluminium fluoride unloading equipment exists, provide one kind and can carry the flow according to aluminium fluoride consumption and the aluminium oxide of aluminium oxide, add aluminium fluoride to aluminium oxide in the continuous even ration of proportion, evenly thoughtlessly join in marriage the back with aluminium oxide, in adding the electrolysis trough with the synchronous unloading of aluminium oxide, can realize aluminium fluoride that aluminium fluoride continuous even ration adds and aluminium fluoride and aluminium oxide aluminum mixing device for the aluminium cell that thoughtlessly joins in marriage.
The purpose of the utility model is realized through the following technical scheme: an aluminum fluoride and aluminum oxide mixing device for an aluminum electrolytic cell comprises a PLC, an aluminum fluoride discharging bin, an electric ball valve arranged at a feeding port of the aluminum fluoride discharging bin, a screw conveyor communicated with a discharging port of the aluminum fluoride discharging bin, more than one weighing sensors arranged on a bracket of the aluminum fluoride discharging bin, a flow detection device connected with the PLC and used for detecting aluminum oxide flow information in a trough of an aluminum oxide pneumatic chute, and a pressure transmitter used for detecting air pressure in an air pipe of the aluminum oxide pneumatic chute; and the spiral conveyor and the weighing sensor are connected with the PLC.
Further, the material storage bin is connected with an electric ball valve at the feeding port of the aluminum fluoride discharging bin through a conveying pipe, and a transmission motor arranged inside the material storage bin is connected with the PLC.
In order to achieve a better using effect, the aluminum fluoride blanking bin consists of a round bin and a conical bin communicated with the round bin; a charging barrel is arranged at the conical head of the conical bin; the feeding end of the screw conveyor is connected with the discharging barrel of the conical bin, and the discharging end of the screw conveyor is connected with the trough of the alumina pneumatic chute.
The aluminum fluoride blanking bin is also provided with a bin blanking stirring mechanism, and the bin blanking stirring mechanism comprises a stirring motor vertically fixed at the center of a top cover of the aluminum fluoride blanking bin, a stirring shaft arranged in the aluminum fluoride blanking bin and fixedly connected with a transmission shaft of the stirring motor, more than one stirring fulcrum shafts which are arranged in the aluminum fluoride blanking bin and arranged on the stirring shaft, and a stirring transmission head arranged at the end part of the stirring shaft; and the stirring motor is connected with the PLC.
Further, the stirring motor is a speed reduction motor, and the speed reduction ratio is 1. The stirring shaft and the stirring fulcrum shafts are all made of antimagnetic stainless steel materials, and the lengths of the stirring fulcrum shafts are gradually decreased along the direction from the stirring motor to the stirring transmission head.
The spiral conveyer is a spiral discharging machine with a sealing pressure maintaining function and electromagnetic interference resistance, a motor of the spiral conveyer is a variable-frequency speed regulating motor, the rotating speed of the variable-frequency speed regulating motor is 0.5-100 rpm, and the power of the variable-frequency speed regulating motor is 0.5-3 KW.
The weighing sensor is a strain type corrugated pipe weighing sensor, and the flow detection device is a microwave solid powder flow detection device.
The pressure transmitter is arranged at the chute end part of the alumina pneumatic chute and is connected with the PLC through a signal wire; the air pressure in the air pipe of the alumina pneumatic chute is 0-7 KPa, and the air pressure is in direct proportion to the addition of alumina and aluminum fluoride.
In order to ensure the air pressure balance of the mixing device, an air pipe of the alumina pneumatic chute is also provided with an air pressure balance branch pipeline communicated with the inner part of the aluminum fluoride discharging bin.
The aluminum fluoride discharging bin, the spiral conveyor and the flow detection device are all installed and fixed at the inlet end of the electrolytic bath alumina super-concentrated phase conveying; the inlet end comprises an outlet end of the screw conveyor and a pipeline for conveying the super-concentrated phase to the whole section of each electrolytic cell branch pipeline for connection.
In order to add materials into the same electrolytic tank quickly and conveniently, more than one alumina bin is arranged below the alumina pneumatic chute, the feed inlets of the alumina bins are communicated with the material groove of the alumina pneumatic chute, and the discharge outlets of the alumina bins are connected with the same electrolytic tank.
Compared with the prior art, the utility model have following advantage and beneficial effect:
(1) The utility model discloses a set up the alumina condition that flows that flow detection device is used for detecting in the pneumatic chute of alumina to give PLC with this information transmission, by PLC according to opening of the flow detection device information control screw conveyer of receiving, agitator motor and stopping, thereby make under the aluminum fluoride in the feed bin aluminum fluoride can realize the intensive mixing with the alumina in the pneumatic chute of alumina.
(2) The utility model discloses can be according to aluminium fluoride consumption and the aluminium oxide transport flow of aluminium oxide, in adding aluminium fluoride to aluminium oxide in proportion even ration in succession, in making aluminium fluoride and aluminium oxide evenly mix the back can add the electrolysis trough in step, realized aluminium fluoride and added in succession even ration, reduced the fluctuation of aluminium fluoride content in the electrolyte, stabilize electrolyte molecule ratio in the electrolysis trough, improve electrolysis current efficiency.
(3) The utility model discloses a PLC adds the initial time and long according to aluminium fluoride, and the real-time detection of the aluminium fluoride weight in the feed bin under the weighing sensor to aluminium fluoride makes the automatic feed supplement of feed bin under the aluminium fluoride that is of the steerable material storage storehouse of PLC, need not artificial intervention, has reduced manual operation intensity.
Drawings
Fig. 1 is a schematic structural diagram of a single device according to the present invention.
Fig. 2 is a schematic view of the overall structure of the combined multiple devices of the present invention.
Fig. 3 is the structure schematic diagram of the blanking stirring mechanism of the storage bin of the utility model.
Fig. 4 is an installation schematic diagram of the weighing sensor of the present invention.
The reference numbers in the above figures refer to: 1-aluminium fluoride blanking bin, 101-circular storehouse, 102-toper storehouse, 2-storehouse unloading rabbling mechanism, 21-agitator motor, 22- (mixing) shaft, 23-stirring fulcrum shaft, 24-stirring fulcrum shaft pole, 25-stirring transmission head, 3-weighing sensor, 4-screw conveyer, 5-electric ball valve, 6-material storage storehouse, 7-aluminium oxide pneumatic chute, 8-flow detection device, 9-conveying pipeline, 10-aluminium oxide storehouse, 11-pressure transmitter, 12-compressed air pipe.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Examples
Fig. 1 is a schematic view of the overall structure of a single mixing unit of the present invention, and fig. 2 is a schematic view of the overall structure of a plurality of mixing units when used in combination. As shown in fig. 1, the main structural components of the mixing device comprise a PLC, an aluminum fluoride discharging bin 1, a bin discharging and stirring mechanism 2, a weighing sensor 3, a screw conveyor 4, an electric ball valve 5, a material storage bin 6, an alumina pneumatic chute 7, a flow detection device 8 and a pressure transmitter 11.
The material storage bin 6 is a conventional storage bin with powder storage and conveying functions in the prior art, and a transmission motor is arranged in the material storage bin, and the structure of the material storage bin 6 is not described in detail in the specification due to the fact that the material storage bin is conventional.
PLC is conventional programmable control system among the prior art, and it is as the utility model discloses an external control system is used for controlling thoughtlessly joining in marriage of aluminium fluoride and aluminium oxide to realize operations such as automatic unloading and feed supplement. The transmission motor in the material storage bin 6 is connected with the PLC so as to ensure that the PLC can control the transmission motor to be started and closed.
The blanking stirring mechanism 2, the screw conveyer 4 and the weighing sensor 3 are respectively connected with the PLC. In actual use, the PLC is connected with an external monitoring station and a server through a communication bus, wherein the monitoring station is responsible for checking the overall operation condition of the aluminum fluoride conveying system, including data display, history records, alarm information and the like of each groove, the field device can be operated and processed through the PLC, and the server records various history data and provides a basis for inquiring various data.
The feed bin 1 is down as the mixed feed bin of aluminium fluoride and aluminium oxide under the aluminium fluoride, and material storage storehouse 6 passes through conveying pipeline 9 to be connected with electric ball valve 5, and electric ball valve 5 passes through coupling hose to be connected with the charge door of feed bin 1 under the aluminium fluoride. The electric ball valve 5 is connected with the feed inlet of the aluminum fluoride discharging bin 1 through a connecting hose, so that the interference of a static weighing result and a dynamic weighing result can be effectively reduced, the leakage of the material powder is prevented, and the material conveying pipe 9 is connected with the feed end of the aluminum fluoride discharging bin 1 through the connecting hose.
In some application occasions, the material storage bin 6 can also send the aluminum fluoride to the aluminum fluoride discharging bin 1 beside each electrolytic cell through a pneumatic conveying chute during feeding. In this embodiment, however, it is preferred to use a conveying pipe 9, i.e. a pipe chain type conveying pipe, as the conveying means. Feed bin unloading rabbling mechanism 2 sets up in aluminium fluoride feed bin 1, and feed bin unloading rabbling mechanism 2 mainly used stirs the aluminium fluoride powder and flows down along with gravity, can realize the unloading conveying to the aluminium fluoride powder simultaneously.
The feeding end of the screw conveyor 4 is connected with the feeding barrel of the conical bin 102 of the aluminum fluoride feeding bin 1 through a flange, and the discharging end of the screw conveyor is connected with the alumina pneumatic chute 7, so that the aluminum fluoride in the aluminum fluoride feeding bin 1 and the alumina flowing in the alumina pneumatic chute 7 are fully mixed. In order to ensure a better using effect, the screw conveyor 4 in this embodiment is preferably implemented by using a special screw discharging machine having a sealing pressure maintaining function and electromagnetic field interference resistance, and sealing devices are disposed at two ends of a housing, two ends of a screw shaft and an inner joint portion of the screw conveyor 4 to ensure that powder with micro-positive pressure cannot enter a bearing and leak from the joint portion of the bearing. In order to avoid the magnetic interference of an electromagnetic field in the using process, the shell, the spiral shaft, the end cover and other parts of the spiral conveyor 4 are all made of stainless steel materials which can prevent the electromagnetic force. In order to meet different conveying amounts, the motor of the spiral conveyor 4 adopts a variable-frequency speed-regulating motor, the rotating speed is controlled from 0.5 to 100 revolutions per minute, and the motor power is controlled from 0.5 to 3KW.
The alumina pneumatic chute 7 is of a conventional structure at present, is divided into an upper layer and a lower layer by a ventilation layer arranged in the chute body, and also comprises a feed inlet, a discharge outlet, an air inlet and other parts. The upper layer of the trough body is used for bearing alumina to be transmitted and can be collectively called as a trough; the lower layer of the groove body is a pipeline for air to flow, and can be collectively called as an air pipe. The feeding hole and the discharging hole are communicated with the trough, and the external compressed air pipe 12 is communicated with the air pipe of the alumina pneumatic chute 7 through the air inlet and provides wind power for the air pipe.
The weighing sensor 3 is a strain type corrugated pipe weighing sensor, and the number of the weighing sensors is multiple. During installation, the weighing sensors 3 are uniformly distributed on a bracket of the aluminum fluoride blanking bin 1, and the weighing sensors 3 are located on the same horizontal plane. In the present embodiment, the number of load cells 3 is preferably set to three. Meanwhile, in order to ensure accurate detection of the weight of the aluminum fluoride in the aluminum fluoride blanking bin 1, the three weighing sensors 3 need to be uniformly distributed on the circumference, that is, an included angle formed between two adjacent weighing sensors 3 is 120 °, and the specific arrangement structure is as shown in fig. 4.
In this embodiment, the flow rate detection device 8 is preferably implemented by a microwave solid powder flow rate detection device. During installation, the flow detection device 8 can be installed in a material groove of the alumina pneumatic chute 7 and can also be installed in an air pipe of the alumina pneumatic chute 7.
The pressure transmitter 11 is used for detecting the air speed in the air pipe of the alumina pneumatic chute 7, is arranged at the chute end part of the alumina pneumatic chute 7 and is connected with the PLC through a signal wire. The pressure transmitter 11 together with the flow sensing device 8 provides the PLC with corresponding information parameters.
In the actual operation process, the larger the air pressure in the air pipe of the alumina pneumatic chute 7 is, the larger the alumina conveying capacity is, and the corresponding increase of the addition amount of the aluminum fluoride is. On the contrary, if the wind pressure in the wind pipe of the alumina pneumatic chute 7 is smaller, the alumina conveying capacity is smaller, and the addition amount of the aluminum fluoride is correspondingly reduced. That is, the wind pressure in the wind pipe of the alumina pneumatic chute 7 is in direct proportion to the addition of alumina and aluminum fluoride. In addition, the adding speed and the flow rate of the aluminum fluoride are different due to different air pressures, so the air pressure in the air pipe of the alumina pneumatic chute 7 is preferably controlled between 0 KPa and 7KPa in the embodiment.
The aluminum fluoride blanking bin 1 is shown in fig. 1, and the aluminum fluoride blanking bin 1 is composed of a round bin 101 and a conical bin 102. Specifically, a detachable bin cover is preset at the top of the circular bin 101, a feeding connecting port is arranged on the preset bin cover, and a shaft hole is formed in the center of the bin cover of the circular bin 101. The electric ball valve 5 is connected with the feed inlet of the circular bin 101 through a connecting hose. The conical bin 102 is communicated with the circular bin 101, and in actual production, the circular bin 101 is connected with the conical bin 102 in a welding mode to form a volume of 0.05-0.2 m 3 The cylinder of (2). The angle of the conical bin 102 is a cavity with an angle of 30-70 degrees, and the conical bin 102 is a blanking end bin, so that no material blockage can be ensured in the blanking process of aluminum fluoride in use. A feeding barrel is arranged at the conical head of the conical bin 102, and the feeding end of the screw conveyor 4 is connected with the feeding barrel of the conical bin 102 through a connecting hose.
The structure of the bin discharging and stirring mechanism 2 is shown in fig. 3, the bin discharging and stirring mechanism 2 includes a stirring motor 21, a stirring shaft 22, a stirring fulcrum 23, a stirring fulcrum shaft 24, and a stirring transmission head 25, and the overall structure of the bin discharging and stirring mechanism 2 is matched with the internal structures of a circular bin 101 and a conical bin 102.
Wherein, agitator motor 21 passes through the top cap center of screw vertical fixation at aluminium fluoride feed bin 1, and agitator motor 21's transmission shaft stretches into in aluminium fluoride feed bin 1 to can the free rotation. Meanwhile, the control end of the stirring motor 21 is connected with the PLC. In the present embodiment, the stirring motor 21 is preferably implemented by a reduction motor with a large reduction ratio, which is preferably 1. The stirring shaft 22 is positioned in the aluminum fluoride blanking bin 1 and is fixedly connected with a transmission shaft of the stirring motor 21, and the length of the stirring shaft 22 is the sum of the heights of the round bin 101 and the conical bin 102.
The stirring transmission head 25 is fixedly connected with the tail end of the stirring shaft 22, and the central axis of the stirring transmission head 25 and the central axis of the stirring shaft 22 are on the same axis. The stirring fulcrum 23 and the stirring fulcrum shaft 24 are fixedly connected into a whole for stirring the materials.
When connected, one end of the stirring fulcrum 23 is vertically fixed to the stirring shaft 22, and the other end thereof is fixedly connected to one end of the stirring fulcrum shaft 24. The end of the stirring fulcrum shaft 24 is disposed toward the stirring transmission head 25 side and toward the stirring shaft 22 side, that is, by this structure, an included angle of 90 degrees or less is formed between the stirring fulcrum shaft 24 and the stirring fulcrum shaft 23.
The number of the stirring fulcrum shafts 23 is more than one, and the stirring shaft 22, the stirring fulcrum shaft 23 and the stirring fulcrum shaft 24 are all made of antimagnetic stainless steel materials. The lengths of the stirring fulcrum shafts 23 are sequentially decreased in the direction from the stirring motor 21 to the stirring transmission head 25 in order to match the internal structures of the circular bin 101 and the conical bin 102.
In order to ensure the whole operation effect of the utility model, the aluminum fluoride discharging bin 1, the discharging stirring mechanism 2, the electric ball valve 5, the screw conveyer 4, the weighing sensor 3, the flow detection device 8 and the pressure transmitter 11 are all installed and fixed at the position of the inlet end of the aluminum oxide super-concentrated phase conveying of the electrolytic bath. And the discharge port of the screw conveyer 4 and the flow detection device 8 are connected with the chute at the inlet part of the alumina pneumatic chute 7 at the upper part of each electrolytic bath through special devices. Wherein, it is important to be clear that the inlet end of the aluminum oxide super-concentrated phase conveying of the electrolytic cell comprises the outlet end of the screw conveyor 4 and a pipeline for conveying the super-concentrated phase to the whole section of each electrolytic cell branch pipeline for connection.
During the concrete implementation, flow detection device 8 is arranged in detecting the aluminium oxide condition of flowing in the pneumatic chute 7 silo of aluminium oxide, pressure transmitter 11 is arranged in detecting the wind speed in the pneumatic chute 7 tuber pipe of aluminium oxide, flow detection device 8 and pressure transmitter 11 all give PLC with the information transmission who gathers, PLC is controlling opening of screw conveyer 4 and agitator motor 21 according to the information of receiving and stops, make aluminium fluoride in the aluminium fluoride feed bin 1 can realize the intensive mixing with the aluminium oxide in the pneumatic chute 7 of aluminium oxide. The speed of the spiral conveyor 4 is higher than that of the stirring motor 21 in the aluminum fluoride blanking working process, namely the discharging speed of the spiral conveyor 4 is higher than that of the blanking bin, so that the phenomenon of aluminum oxide accumulation between the aluminum fluoride blanking bin 1 and the spiral conveyor 4 is avoided.
As described above, the utility model discloses alright fine realization.
Claims (12)
1. The aluminum fluoride and aluminum oxide mixing device for the aluminum electrolytic cell is characterized by comprising a PLC (programmable logic controller), an aluminum fluoride discharging bin (1), an electric ball valve (5) arranged at a feeding port of the aluminum fluoride discharging bin (1), a screw conveyer (4) communicated with a discharging port of the aluminum fluoride discharging bin (1), more than one weighing sensors (3) arranged on a bracket of the aluminum fluoride discharging bin (1), and a flow detection device (8) connected with the PLC and used for detecting aluminum oxide flow information in a trough of an aluminum oxide pneumatic chute (7) and a pressure transmitter (11) used for detecting air pressure in an air pipe of the aluminum oxide pneumatic chute (7); and the spiral conveyor (4) and the weighing sensor (3) are connected with the PLC.
2. The aluminum fluoride and aluminum oxide mixing device for the aluminum electrolytic cell according to claim 1, further comprising a material storage bin (6) connected with the electric ball valve (5) at the feed inlet of the aluminum fluoride discharging bin (1) through a feed delivery pipe (9), wherein a transmission motor arranged inside the material storage bin (6) is connected with the PLC.
3. The aluminum fluoride and aluminum oxide mixing device for the aluminum electrolytic cell according to claim 2, wherein the aluminum fluoride blanking bin (1) consists of a circular bin (101) and a conical bin (102) communicated with the circular bin (101); a charging barrel is arranged at the conical head of the conical bin (102); the feeding end of the screw conveyor (4) is connected with the discharging barrel of the conical bin (102), and the discharging end of the screw conveyor is connected with the trough of the alumina pneumatic chute (7).
4. The aluminum fluoride and aluminum oxide mixing device for the aluminum electrolytic cell according to claim 3, wherein a bin blanking stirring mechanism (2) is further arranged on the aluminum fluoride blanking bin (1), the bin blanking stirring mechanism (2) comprises a stirring motor (21) vertically fixed at the center of a top cover of the aluminum fluoride blanking bin (1), a stirring shaft (22) arranged inside the aluminum fluoride blanking bin (1) and fixedly connected with a transmission shaft of the stirring motor (21), more than one stirring fulcrum shafts (23) arranged inside the aluminum fluoride blanking bin (1) and on the stirring shaft (22), and a stirring transmission head (25) arranged at the end part of the stirring shaft (22); the stirring motor (21) is connected with the PLC.
5. The aluminum fluoride and alumina mixing device for the aluminum electrolytic cell according to claim 4, wherein the stirring motor (21) is a speed reduction motor, and the speed reduction ratio is 1.
6. The aluminum fluoride and alumina mixing device for the aluminum electrolytic cell according to claim 5, wherein the stirring shaft (22) and the stirring fulcrum shaft (23) are made of a magnetic force-proof stainless steel material.
7. The aluminum fluoride and aluminum oxide mixing device for the aluminum electrolytic cell according to any one of claims 1 to 6, wherein the screw conveyor (4) is a screw discharging machine with a sealing pressure maintaining function and electromagnetic interference resistance, and a motor of the screw conveyor (4) is a variable frequency speed regulating motor with a rotating speed of 0.5 to 100 rpm and a motor power of 0.5 to 3KW.
8. The aluminum fluoride and aluminum oxide mixing device for the aluminum electrolytic cell according to claim 7, wherein the weighing sensor (3) is a strain bellows weighing sensor, and the flow detection device (8) is a microwave solid powder flow detection device.
9. The aluminum fluoride and alumina mixing device for the aluminum electrolytic cell according to claim 7, wherein the pressure transmitter (11) is installed at the end of the alumina pneumatic chute (7) and is connected with the PLC through a signal line; the air pressure in the air pipe of the alumina pneumatic chute (7) is 0-7 KPa, and the air pressure is in direct proportion to the addition of alumina and aluminum fluoride.
10. The aluminum fluoride and aluminum oxide mixing device for the aluminum electrolytic cell according to claim 7, wherein an air pipe of the aluminum oxide pneumatic chute (7) is further provided with an air pressure balance branch pipeline communicated with the interior of the aluminum fluoride blanking bin (1).
11. The aluminum fluoride and aluminum oxide mixing device for the aluminum electrolytic cell according to claim 7, wherein the aluminum fluoride blanking bin (1), the screw conveyor (4) and the flow detection device (8) are all installed and fixed at the inlet end of the aluminum oxide super-concentrated phase conveying of the electrolytic cell; the inlet end comprises an outlet end of the screw conveyor (4) and a pipeline for conveying the super-concentrated phase to the whole section of each electrolytic cell branch pipeline for connection.
12. The aluminum fluoride and aluminum oxide mixing device for the aluminum electrolytic cell according to claim 7, wherein more than one aluminum oxide bin (10) is arranged below the aluminum oxide pneumatic chute (7), and the feed inlets of the aluminum oxide bins (10) are communicated with the chute of the aluminum oxide pneumatic chute (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222786615.4U CN218666331U (en) | 2022-10-22 | 2022-10-22 | Aluminum fluoride and aluminum oxide mixing device for aluminum electrolysis cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222786615.4U CN218666331U (en) | 2022-10-22 | 2022-10-22 | Aluminum fluoride and aluminum oxide mixing device for aluminum electrolysis cell |
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| Publication Number | Publication Date |
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| CN218666331U true CN218666331U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222786615.4U Active CN218666331U (en) | 2022-10-22 | 2022-10-22 | Aluminum fluoride and aluminum oxide mixing device for aluminum electrolysis cell |
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| CN (1) | CN218666331U (en) |
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- 2022-10-22 CN CN202222786615.4U patent/CN218666331U/en active Active
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