Alumina powder conveying device for electrolytic cell
By introducing intelligent pressure sensors and solenoid valves to control compressed air in the alumina powder conveying device, the problem of insufficient material supply in the electrolytic cell hopper caused by poor alumina powder feeding was solved, thus achieving stable material supply and continuous production in the electrolytic cell.
Patent Information
- Application Number
- CN202520033432.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-07
AI Technical Summary
During the feeding process of the electrolytic cell hopper, the lack of material in the electrolytic cell hopper is caused by the alumina storage tank bottom discharge pipe not discharging or discharging too little material, which affects the production of the electrolytic series.
An alumina powder conveying device was designed, comprising an alumina storage bin, a feeding pipe, an ultra-dense phase conveying assembly, a first air supply pipe, and a feeding control module. The device uses an intelligent pressure sensor and a solenoid valve to control the supply of compressed air, ensuring that the alumina powder falls smoothly and preventing material shortage in the bin.
This effectively prevents alumina powder from clogging the feed pipe, maintains normal material supply to the electrolytic cell hopper, reduces the labor intensity of manual unblocking, and ensures the continuity of electrolytic production.
Smart Images
Figure CN223852802U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of conveying devices, in particular to an alumina powder conveying device for electrolytic cells. BACKGROUND
[0002] An electrolytic cell is composed of a cell body, an anode and a cathode, and most of them are separated by a diaphragm into an anode chamber and a cathode chamber. According to the different electrolytes, there are three types of water solution electrolytic cell, molten salt electrolytic cell and non-aqueous solution electrolytic cell. When direct current passes through the electrolytic cell, oxidation reaction occurs at the interface between the anode and the solution, and reduction reaction occurs at the interface between the cathode and the solution to produce the desired product.
[0003] In the related art, the raw material alumina powder required in the production process of electrolytic aluminum is stored in an alumina storage bin. When the alumina powder is conveyed, the alumina powder flows into a chute through a discharge pipe at the lower part of the alumina storage bin, and is transported to the electrolytic cell bin by the hyper-concentration phase conveying assembly.
[0004] However, when the discharge pipe just starts to discharge, due to the stress between the alumina in the alumina storage bin, the discharge pipe may occasionally not discharge or discharge less. If this is not found in time, it is easy to cause the electrolytic cell bin to run out of material, causing a large-area effect on the electrolytic cell bin, and affecting the electrolytic series production. CONTENT OF THE INVENTION
[0005] The present application provides an alumina powder conveying device for electrolytic cells, which can solve the problem of electrolytic cell bin material shortage caused by the discharge pipe at the bottom of the alumina storage bin not discharging during the electrolytic cell bin feeding process, and at the same time reduces the labor intensity when the discharge pipe needs to be manually dredged. The specific technical solution is as follows:
[0006] The present application provides an alumina powder conveying device for electrolytic cells, which can solve the problem of electrolytic cell bin material shortage caused by the discharge pipe at the bottom of the alumina storage bin not discharging during the electrolytic cell bin feeding process, and at the same time reduces the labor intensity when the discharge pipe needs to be manually dredged. The specific technical solution is as follows:
[0007] As an optional implementation, the discharge control module includes an intelligent pressure sensor and a solenoid valve connected by electricity; the intelligent pressure sensor is arranged on the hyper-concentration phase conveying assembly and is used to monitor the air supply pressure of the second air supply pipe of the hyper-concentration phase conveying assembly and transmit the pressure signal to the solenoid valve; the solenoid valve is opened or closed according to the obtained pressure signal to control the falling speed of the alumina powder.
[0008] As an optional implementation, the top end of the first air supply pipe is provided with a stop component for stopping the alumina powder from falling into the first air supply pipe.
[0009] As an optional implementation, the stop component comprises a plurality of support ribs and a stop plate; the plurality of support ribs are arranged along the circumference of the first air supply pipe, the bottom end of the plurality of support ribs is connected with the top end of the first air supply pipe, and the top end of the plurality of support ribs is connected with the stop plate.
[0010] As an optional implementation, the stop plate covers the top end opening of the first air supply pipe.
[0011] As an optional implementation, the hyper-concentration phase conveying component comprises a chute material chamber, a chute gas chamber and a fan; the top end of the chute material chamber is communicated with the discharging pipe, and the bottom end of the chute material chamber extends into the electrolytic tank material box and is communicated with the electrolytic tank material box; the chute gas chamber is separated from the chute material chamber by air-permeable canvas and is communicated with the second air supply pipe; the fan is arranged at the air inlet end of the second air supply pipe to ventilate the second air supply pipe.
[0012] As an optional implementation, the first air supply pipe comprises a first pipe section, a second pipe section and a third pipe section which are communicated; the top end of the first pipe section extends into the alumina storage bin, and the bottom end of the first pipe section extends into the discharging pipe; one end of the second pipe section is connected with the bottom end of the first pipe section in the discharging pipe, and the other end of the second pipe section extends out of the discharging pipe through the pipe wall of the discharging pipe; the top end of the third pipe section is connected with the other end of the second pipe section, and the bottom end of the third pipe section is connected with the second air supply pipe and is communicated, and the electromagnetic valve is arranged on the second pipe section.
[0013] As an optional implementation, the extension direction of the first pipe section and the extension direction of the third pipe section are both perpendicular to the extension direction of the second pipe section.
[0014] As an optional implementation, the extension length of the third pipe section is greater than the extension length of the first pipe section, and the extension length of the first pipe section is greater than the extension length of the second pipe section.
[0015] As an optional implementation, the plug valve is arranged on the discharging pipe.
[0016] In the alumina powder conveying device for electrolytic tank provided in the application, the first air supply pipe and the discharging control module are arranged, when the alumina powder in the alumina storage bin cannot fall into the discharging pipe, the discharging control module can ventilate the compressed air into the first air supply pipe through the hyper-concentration phase conveying component to make the alumina powder in the alumina storage bin fall into the discharging pipe, so as to avoid that the alumina powder in the alumina storage bin cannot fall into the discharging pipe, and further avoid that the electrolytic tank material box is out of material, and the normal production of the electrolytic series is maintained. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1A structure schematic view of an alumina powder conveying device for an electrolytic cell provided by an embodiment of the present application;
[0018] Figure 2 A sectional view of a partial structure of an alumina powder conveying device for an electrolytic cell provided by an embodiment of the present application;
[0019] Figure 3 For Figure 2 An enlarged schematic view of a partial structure at A;
[0020] Figure 4 A structure schematic view of a stop component in an alumina powder conveying device for an electrolytic cell provided by an embodiment of the present application.
[0021] Explanation of reference signs:
[0022] 1, alumina storage bin; 2, blanking pipe; 3, super-concentrated phase conveying component; 4, first air supply pipe; 5, blanking control module; 6, electrolytic cell tank; 7, stop component; 8, plug valve;
[0023] 10, alumina powder conveying device for an electrolytic cell; 31, chute material chamber; 32, chute gas chamber; 33, second air supply pipe; 34, fan; 41, first pipe section; 42, second pipe section; 43, third pipe section; 51, intelligent pressure sensor; 52, electromagnetic valve; 71, support rib; 72, stop plate. DETAILED DESCRIPTION
[0024] The technical solutions in the present application will be described in detail below with reference to the drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B: "and / or" in the text is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist together, and B exists alone, in addition, in the description of the embodiments of the present application, "multiple" means two or more than two.
[0025] Hereinafter, the terms "first", "second" are only for descriptive purposes, and cannot be understood as implying or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.
[0026] The electrolytic cell is composed of a cell body, an anode and a cathode, and the anode chamber and the cathode chamber are separated by a diaphragm in most cases. According to the different electrolyte, it is divided into three types of water solution electrolytic cell, molten salt electrolytic cell and non-aqueous solution electrolytic cell. When direct current passes through the electrolytic cell, oxidation reaction occurs at the interface between the anode and the solution, and reduction reaction occurs at the interface between the cathode and the solution, so as to produce the required product. In the related technology, the raw material alumina powder required in the production process of electrolytic aluminum is stored in an alumina storage bin. When the alumina powder is transported, the alumina powder flows into the chute through the discharge pipe at the lower part of the alumina storage bin, and is transported into the electrolytic cell tank by the hyper-concentrated phase conveying assembly. However, when the discharge pipe just starts to discharge, due to the stress between the alumina in the alumina storage bin, the discharge pipe may occasionally not discharge or discharge less. If it is not found in time, it is easy to cause the electrolytic cell tank to be out of material and cause large-area effect of the electrolytic cell tank, which affects the electrolytic series production.
[0027] It should be noted that the reason why the discharge pipe does not discharge is that the alumina powder in the alumina bin is in a state of stress balance under the action of its own stress, causing the alumina powder not to fall.
[0028] Therefore, the alumina powder conveying device for electrolytic cell provided in the embodiments of the present application can avoid the phenomenon of lack of material in the electrolytic cell tank to a certain extent.
[0029] The embodiments of the present application will be described in detail below with reference to the drawings and specific embodiments.
[0030] Please refer to Figure 1 , Figure 1 The structure diagram of the alumina powder conveying device for electrolytic cell provided in the embodiments of the present application is shown in the figure. As shown in the figure, the present embodiment provides an alumina powder conveying device 10 for electrolytic cell, which comprises an alumina storage bin 1, a discharge pipe 2, a hyper-concentrated phase conveying assembly 3, a first air supply pipe 4, a discharge control module 5 and an electrolytic cell tank 6. The bottom end of the alumina storage bin 1 has an opening. The top end of the discharge pipe 2 is in communication with the opening. One end of the hyper-concentrated phase conveying assembly 3 is in communication with the bottom end of the discharge pipe 2. The top end of the first air supply pipe 4 extends into the alumina storage bin 1, and the bottom end penetrates through the pipe wall of the discharge pipe 2 and is in communication with the hyper-concentrated phase conveying assembly 3. The discharge control module 5 is arranged between the first air supply pipe 4 and the hyper-concentrated phase conveying assembly 3, and is used to introduce compressed air into the first air supply pipe 4 through the hyper-concentrated phase conveying assembly 3 to make the alumina powder in the alumina storage bin 1 fall into the discharge pipe 2. The other end of the hyper-concentrated phase conveying assembly 3 is in communication with the electrolytic cell tank 6.
[0031] Thus, by setting the first air supply pipe 4 and the discharging control module 5, when the alumina powder in the alumina storage bin 1 cannot fall into the discharging pipe 2, the discharging control module 5 can pass compressed air into the first air supply pipe 4 through the hyper-concentration phase conveying assembly 3 to make the alumina powder in the alumina storage bin 1 fall into the discharging pipe 2, so as to avoid that the alumina powder in the alumina storage bin 1 cannot fall into the discharging pipe 2, and further avoid that the electrolytic tank material box 6 is short of materials, and keep the normal production of the electrolytic series.
[0032] In some specific embodiments, the first air supply pipe 4 can be a steel pipe with a pipe diameter of 15 mm. Herein, the pipe diameter and material of the first air supply pipe 4 are not specifically limited.
[0033] Specifically, the hyper-concentration phase conveying assembly 3 includes a chute material chamber 31, a chute gas chamber 32, a second air supply pipe 33 and a fan 34; the chute material chamber 31 is in communication with the discharging pipe 2 at the top end and extends into the electrolytic tank material box 6 at the bottom end to be in communication with the electrolytic tank material box 6; the chute gas chamber 32 is separated from the chute material chamber 31 by air-permeable canvas and is in communication with the second air supply pipe 33; the fan 34 is arranged at the air inlet end of the second air supply pipe 33 to pass air into the second air supply pipe 33.
[0034] Further, the discharging control module 5 includes an intelligent pressure sensor 51 and an electromagnetic valve 52 electrically connected; the intelligent pressure sensor 51 is arranged on the second air supply pipe 33 and is used to monitor the air supply pressure of the second air supply pipe 33 and transmit the pressure signal to the electromagnetic valve 52; the electromagnetic valve 52 is opened or closed according to the acquired pressure signal to control the falling speed of the alumina powder.
[0035] Specifically, after the electrolytic tank alumina powder conveying device 10 is started, the intelligent pressure sensor 51 is responsible for monitoring the air supply pressure of the second air supply pipe 33; when the air supply pressure is reduced to the lower limit of the set value of the intelligent pressure sensor 51, the intelligent pressure sensor 51 sends a signal to supply power to the electromagnetic valve 52, at this time, the electromagnetic valve 52 is opened; when the pressure in the second air supply pipe 33 exceeds the upper limit of the set value, the intelligent pressure sensor 51 stops outputting the signal, and the electromagnetic valve 52 is closed.
[0036] In the electrolytic tank alumina powder conveying device 10 provided in the embodiment, when the electrolytic tank material box 6 needs to be charged, the device is started, the alumina powder falls into the discharging pipe 2 from the alumina storage bin 1, and then falls into the chute material chamber 31 and is transported to the electrolytic tank material box 6 through the chute material chamber 31.
[0037] If the alumina powder in the alumina storage bin 1 cannot fall into the downpipe 2 during the operation of the device, the alumina powder in the chute material chamber 31 gradually flows into the electrolytic tank material box 6, causing no alumina powder in the chute material chamber 31. At this time, the air permeability of the air-permeable canvas separating the chute material chamber 31 and the chute air chamber 32 is greatly increased due to the obstruction of the alumina powder, causing the wind pressure in the second air supply pipe 33 to decrease. At this time, the intelligent pressure sensor 51 installed on the second air supply pipe 33 detects that the air supply pressure decreases significantly, and when the air supply pressure decreases to the set value, the intelligent pressure sensor 51 sends a signal to power the electromagnetic valve 52, the electromagnetic valve 52 is opened, and the compressed air enters the first air supply pipe 4 and is sprayed out at high speed through the small hole at the top, increasing the flowability of the alumina powder and making it fall quickly into the chute material chamber 31.
[0038] When the chute material chamber 31 is full of material, the air permeability of the air-permeable canvas is poor due to the resistance of the alumina powder. At this time, the wind pressure in the second air supply pipe 33 rises, and when it rises to the set value of the intelligent pressure sensor 51, the pressure signal of the intelligent pressure sensor 51 stops sending, and the electromagnetic valve 52 is closed.
[0039] Please refer to Figures 2 to 4 , Figure 2 the sectional view of the partial structure of the alumina powder conveying device for the electrolytic tank provided in the embodiments of the present application, Figure 3 for Figure 2 the enlarged schematic view of the partial structure at A in the above, Figure 4 the structural schematic view of the stop component in the alumina powder conveying device for the electrolytic tank provided in the embodiments of the present application. It is not difficult to understand that in the process of conveying the alumina powder into the electrolytic tank material box 6, the alumina powder in the alumina storage bin 1 may fall into the first air supply pipe 4 through the opening at the top of the first air supply pipe 4 when falling into the downpipe 2. In order to avoid this phenomenon, as an optional implementation, the top end of the first air supply pipe 4 is provided with a stop component 7 for stopping the alumina powder from falling into the first air supply pipe 4. In this way, the setting of the stop component 7 can to some extent avoid the alumina powder from falling into the first air supply pipe 4.
[0040] Since the alumina powder in the alumina storage bin 1 cannot fall into the discharge pipe 2, air needs to be injected into the alumina storage bin 1 through the top of the first air supply pipe 4, and therefore the stop component 7 cannot be completely closed. In the specific embodiment of the present embodiment, the stop component 7 comprises a plurality of support ribs 71 and a stop plate 72. The plurality of support ribs 71 are arranged along the circumference of the first air supply pipe 4, the bottom ends of the plurality of support ribs 71 are connected to the top end of the first air supply pipe 4, and the top ends of the plurality of support ribs 71 are connected to the stop plate 72. In this way, the plurality of support ribs 71 enable air to be injected into the alumina storage bin 1 through the top of the first air supply pipe 4, and the stop plate 72 blocks the alumina powder.
[0041] Further, in order to prevent the alumina powder from falling into the first air supply pipe 4 from the gap between the stop plate 72 and the wall of the first air supply pipe 4, the stop plate 72 covers the top opening of the first air supply pipe 4. In this way, the alumina powder can be prevented from falling into the first air supply pipe 4 from the gap between the stop plate 72 and the wall of the first air supply pipe 4.
[0042] Here, “covers” can be understood as the projection area of the stop plate 72 on the plane of the opening of the first air supply pipe 4 coincides with the opening area of the first air supply pipe 4, or the opening area of the first air supply pipe 4 falls within the projection area of the stop plate 72 on the plane of the opening of the first air supply pipe 4.
[0043] In the present embodiment, the shape of the first air supply pipe 4 can be that the first air supply pipe 4 comprises a first pipe section 41, a second pipe section 42 and a third pipe section 43. The top end of the first pipe section 41 extends into the alumina storage bin 1, and the bottom end extends into the discharge pipe 2. One end of the second pipe section 42 is connected to the bottom end of the first pipe section 41 in the discharge pipe 2, and the other end extends out of the discharge pipe 2 through the wall of the discharge pipe 2. The top end of the third pipe section 43 is connected to the other end of the second pipe section 42, and the bottom end is connected to and communicates with the second air supply pipe 33. The solenoid valve 52 is arranged on the second pipe section 42.
[0044] Here, the extension direction of the first pipe section 41 and the extension direction of the third pipe section 43 are both perpendicular to the extension direction of the second pipe section 42. The extension length of the third pipe section 43 is greater than the extension length of the first pipe section 41, and the extension length of the first pipe section 41 is greater than the extension length of the second pipe section 42.
[0045] In the process of normal conveying of the alumina powder in the electrolytic cell bin 6, in order to match the amount of the alumina powder with the demand of the electrolytic cell bin 6 for the alumina powder, a plug valve 8 can be arranged on the discharge pipe 2. By changing the position of the plug valve 8, the amount of the alumina powder can be controlled to meet the demand of the electrolytic cell bin 6 for the alumina powder.
[0046] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0047] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. An alumina powder conveying device for an electrolytic cell, characterized by comprising: The application relates to an alumina powder feeding device. The device comprises: an alumina storage bin with an open bottom end; a feeding pipe with a top end communicating with the open bottom end of the alumina storage bin; an ultra-dense phase conveying assembly with one end communicating with the bottom end of the feeding pipe; a first air supply pipe with a top end extending into the alumina storage bin and a bottom end penetrating the wall of the feeding pipe and communicating with the ultra-dense phase conveying assembly; a feeding control module arranged between the first air supply pipe and the ultra-dense phase conveying assembly, which is used for feeding compressed air into the first air supply pipe through the ultra-dense phase conveying assembly to make the alumina powder in the alumina storage bin fall into the feeding pipe; and 2. The alumina powder conveying device for an electrolytic cell according to claim 1, characterized by an electrolytic tank bin communicating with the other end of the ultra-dense phase conveying assembly. The feeding control module comprises an intelligent pressure sensor and an electromagnetic valve connected electrically. The intelligent pressure sensor is arranged on the ultra-dense phase conveying assembly and is used for monitoring the air supply pressure of the second air supply pipe of the ultra-dense phase conveying assembly and transmitting a pressure signal to the electromagnetic valve.
3. The alumina powder conveying device for an electrolytic cell according to claim 1, characterized by The electromagnetic valve is opened or closed according to the acquired pressure signal to control the falling speed of the alumina powder.
4. The alumina powder conveying apparatus for an electrolytic cell according to claim 3, characterized by The top end of the first air supply pipe is provided with a stop assembly used for stopping the alumina powder from falling into the first air supply pipe. The stop assembly comprises a plurality of support ribs and a stop plate.
5. The alumina powder conveying apparatus for an electrolytic cell according to claim 4, characterized by The plurality of support ribs are arranged along the circumference of the first air supply pipe, the bottom ends of the plurality of support ribs are connected with the top end of the first air supply pipe, and the top ends of the plurality of support ribs are connected with the stop plate.
6. The alumina powder conveying device for an electrolytic cell according to claim 2, characterized by The stop plate covers the top end of the first air supply pipe. The ultra-dense phase conveying assembly comprises: a chute material chamber with a top end communicating with the feeding pipe and a bottom end extending into the electrolytic tank bin and communicating with the electrolytic tank bin; a chute gas chamber separated from the chute material chamber by air-permeable canvas and communicating with the second air supply pipe; and 7. The alumina powder conveying apparatus for an electrolytic cell according to claim 2, characterized by a fan arranged at the air inlet end of the second air supply pipe to ventilate the second air supply pipe. The first air supply pipe comprises a first pipe section, a second pipe section and a third pipe section. The top end of the first pipe section extends into the alumina storage bin, and the bottom end extends into the feeding pipe. One end of the second pipe section is connected with the bottom end of the first pipe section in the feeding pipe, and the other end extends out of the feeding pipe through the wall of the feeding pipe.
8. The alumina powder conveying apparatus for an electrolytic cell according to claim 7, characterized by The top end of the third pipe section is connected with the other end of the second pipe section, the bottom end of the third pipe section is connected with the second air supply pipe and communicates with the second air supply pipe, and the electromagnetic valve is arranged on the second pipe section.
9. The alumina powder conveying apparatus for an electrolytic cell according to claim 7, characterized by The extension direction of the first pipe section and the extension direction of the third pipe section are both perpendicular to the extension direction of the second pipe section.
10. The alumina powder conveying device for an electrolytic cell according to any one of claims 1 to 9, characterized by, The extension length of the third pipe section is greater than the extension length of the first pipe section, and the extension length of the first pipe section is greater than the extension length of the second pipe section. A plug valve is arranged on the feeding pipe.