Anode large bus mechanism and lifting method of anode large bus mechanism

Abstract

The invention belongs to the field of structures of electrolytic cells, and particularly relates to an anode large bus mechanism and a lifting method of the anode large bus mechanism. In order to improve the intelligent degree of the lifting process of an anode large bus, the invention provides an anode large bus mechanism. The anode large bus mechanism comprises an anode guide rod, a movable anode large bus and a fixed anode large bus which is always located at the same height, the movable anode large bus is fixedly connected with a movable small box fixture, and the fixed anode large bus is fixedly connected with a fixed small box fixture; the fixed anode large bus and the movable anode large bus are connected in series through a conductive soft belt; and when the movable anode large bus is lifted, the movable small box fixture is in a loosened state, and the fixed small box fixture is in a clamped state. The invention further provides a lifting method of the anode large bus mechanism. When the movable anode large bus is lifted, the fixed anode large bus is electrically conducted with the anode guide rod, so that a worker does not need to operate the crown block, the labor is saved, and the intelligent degree is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of electrolytic cell structure, and particularly relates to an anode busbar mechanism and a lifting method of the anode busbar mechanism. BACKGROUND

[0002] At the anode of an aluminum electrolytic cell, the anode busbar is fixedly connected with the anode guide rod through a small box clamp. The anode busbar is generally hung on the electrolytic cell by an anode lifting mechanism, and the anode busbar has an upper limit position and a lower limit position when moving up and down. The small box clamp is fixed on the anode busbar, and the function of the small box clamp is to make the anode guide rod closely contact with the anode busbar to ensure the conductive contact between the anode busbar and the anode guide rod.

[0003] During the electrolysis process, the carbon anode at the lower part of the anode guide rod is continuously consumed. In order to ensure the stability of the distance between the cathode and the anode in the electrolytic cell (i.e. the cell pitch), the anode guide rod needs to be gradually moved downward. Therefore, under the drive of the anode lifting mechanism, the anode busbar moves downward synchronously with the anode guide rod. When the anode busbar moves downward to the lower limit position, the anode busbar must be lifted (equivalent to moving the anode busbar).

[0004] When lifting the anode busbar, first, each carbon anode and the corresponding anode guide rod are fixed by using a lifting frame to ensure the stability of the cell pitch. Then, the small box clamp is loosened to ensure that the anode guide rod and the carbon anode remain stationary during the lifting process. After that, the lifting motor is started, and the anode busbar is lifted to the upper limit position by the anode lifting mechanism (such as a worm and gear mechanism). Finally, the small box clamp is tightened to fix the anode guide rod and the anode busbar, and the lifting frame is removed, completing the lifting operation of the anode busbar.

[0005] In actual operation, the small box clamp should be quickly loosened and tightened, and when moving the anode busbar by the lifting mechanism, the anode guide rod should always be closely attached to the anode busbar by using a multifunctional overhead traveling crane to avoid long-term interruption of the current on the carbon anode and to avoid safety accidents.

[0006] Currently, in order to improve the intelligent degree of the anode busbar lifting process and reduce manual participation, an automatic tightening and loosening device for automatically loosening and tightening the small box clamp is arranged on the lifting frame. For example, a Chinese utility model patent with the publication number CN219255403U and the publication date of June 27, 2023 discloses a wrench tightening and loosening mechanism and a busbar lifting system, and the wrench tightening and loosening mechanism can move back and forth along the longitudinal direction of the lifting frame and automatically loosen and tighten the small box clamp. Another example is a Chinese utility model patent with the publication number CN213507238U and the publication date of June 22, 2021, which discloses a busbar lifting frame, and the busbar lifting frame includes a mechanism for automatically loosening and tightening the small box clamp.

[0007] However, in the process of lifting the anode busbar, the workers also need to manually control the multifunctional trolley to make the anode guide rod always close to the anode busbar, thereby resulting in that the intelligent degree of the anode busbar lifting process is still low. SUMMARY

[0008] The present application aims to provide an anode busbar mechanism to solve the technical problem that the intelligent degree of the existing anode busbar lifting process is low and a large amount of manual participation is required.

[0009] The present application also aims to provide an anode busbar mechanism lifting method to solve the same technical problem.

[0010] To achieve the above-mentioned purposes, the technical scheme of the anode busbar mechanism provided by the present application is as follows: An anode busbar mechanism, comprising an anode guide rod and a movable anode busbar capable of moving up and down, a movable small box clamp is fixedly connected to the movable anode busbar, the anode busbar mechanism further comprises a fixed anode busbar capable of being always located at the same height, a fixed small box clamp is fixedly connected to the fixed anode busbar, and the fixed anode busbar and the movable anode busbar are connected in series through a conductive soft belt. Each small box clamp has a clamping state for clamping the anode guide rod and a loosening state for loosening the anode guide rod, when the anode guide rod and the movable anode busbar move downward synchronously, the movable small box clamp is in the clamping state and the fixed small box clamp is in the loosening state, when the movable anode busbar is lifted, the movable small box clamp is in the loosening state and the fixed small box clamp is in the clamping state.

[0011] Further, each anode busbar is arranged horizontally, at least two anode guide rods are arranged at intervals, and each anode busbar has small box clamps matched with all the anode guide rods.

[0012] Further, the fixed anode busbar is located directly above the movable anode busbar.

[0013] Further, the number of the movable anode busbar and the fixed anode busbar connected to the same anode guide rod is one.

[0014] Further, the number of the movable anode busbar and the fixed anode busbar connected to the same anode guide rod is at least two, and the whole after parallel connection of all the movable anode busbars and the whole after parallel connection of all the fixed anode busbars are connected in series through the conductive soft belt.

[0015] The anode busbar mechanism has the advantages that: the anode busbar mechanism is an improved invention, and the main difference between the anode busbar mechanism and the prior art is that: in the prior art, the anode busbar mechanism only includes a movable anode busbar, while in the anode busbar mechanism, the anode busbar mechanism further includes a fixed anode busbar, and the fixed anode busbar is always located at the same height.

[0016] During the operation of the electrolytic cell, the movable anode busbar and the anode guide rod gradually move downward, and in this process, since the movable small box clamp is in a clamped state, the movable anode busbar is in electrical conduction with the anode guide rod, and since the fixed small box clamp is in a loosened state, the fixed anode busbar will not move with the anode guide rod. When the movable anode busbar moves to the lower limit position, the movable anode busbar needs to be lifted.

[0017] When the movable anode busbar is lifted, since the fixed small box clamp is in a clamped state, the anode guide rod is in electrical conduction with the fixed anode busbar, and since the movable small box clamp is in a loosened state, the movable anode busbar can be lifted to the upper limit position without moving the anode guide rod.

[0018] During the entire process of lifting the movable anode busbar, the anode guide rod does not need to be tightly attached to the movable anode busbar by using the multifunctional crown block, and the fixed small box clamp can ensure that the anode guide rod is in electrical conduction with the fixed anode busbar, thereby avoiding long-term power failure of the electrolytic cell. Therefore, during the process of lifting the movable anode busbar, the staff does not need to operate the multifunctional crown block, which is beneficial to saving manpower and improving the intelligent degree.

[0019] It should be specially noted that when the movable anode busbar is lifted, the anode guide rod can be fixed in the following two ways: way one, the same as the prior art, the lifting frame fixes the anode guide rod, and different from the prior art, the fixed anode busbar and the fixed small box clamp also fix the anode guide rod; way two, only the fixed anode busbar and the fixed small box clamp fix the anode guide rod, and the lifting frame does not fix the anode guide rod.

[0020] To achieve the above-mentioned purpose, the technical scheme of the lifting method of the anode busbar mechanism provided by the present application is: A lifting method of an anode busbar mechanism, the anode busbar mechanism includes an anode guide rod and a movable anode busbar capable of moving up and down, the movable anode busbar is fixedly connected with a movable small box clamp, the anode busbar mechanism further includes a fixed anode busbar always located at the same height, the fixed anode busbar is fixedly connected with a fixed small box clamp, and the fixed anode busbar and the movable anode busbar are connected in series through a conductive soft belt. Each small box fixture has a clamping state for clamping the anode guide rod and a loosening state for loosening the anode guide rod, when the anode guide rod and the moving anode busbar move downward synchronously, the moving small box fixture is in the clamping state and the fixed small box fixture is in the loosening state, when the moving anode busbar is lifted, the moving small box fixture is in the loosening state and the fixed small box fixture is in the clamping state; When the moving anode busbar is lifted, the following steps can be performed: Step S1, loosen the moving small box fixture and tighten the fixed small box fixture; Step S2, lift the moving anode busbar to the upper limit position; Step S3, tighten the moving small box fixture and loosen the fixed small box fixture.

[0021] Further, in step S1, the fixed small box fixture is first tightened and then the moving small box fixture is loosened.

[0022] Further, in step S3, the moving small box fixture is first tightened and then the fixed small box fixture is loosened.

[0023] Further, each anode busbar is horizontally arranged, and at least two anode guide rods are arranged at intervals, and each anode busbar has small box fixtures matched with all anode guide rods.

[0024] Further, in steps S1 and S3, all small box fixtures on the same kind of anode busbar are operated at the same time first, and then all small box fixtures on the other kind of anode busbar are operated at the same time.

[0025] The lifting method of the anode busbar mechanism has the following advantages: the present application is an innovative creation. In the present application, step S1 is used to make the fixed anode busbar electrically conductive with the anode guide rod and ensure that the moving anode busbar can move independently; step S2 is used to make the moving anode busbar have a set downward stroke; step S3 is used to make the moving anode busbar electrically conductive with the anode guide rod and ensure that the moving anode busbar and the anode guide rod move synchronously, while ensuring that the fixed anode busbar always stays at the same height.

[0026] When the moving anode busbar is lifted by using the lifting method in the present application, the fixed small box fixture can be used to make the fixed anode busbar electrically conductive with the anode guide rod, thereby avoiding long-term power failure of the electrolytic cell and not requiring workers to operate the multifunctional overhead crane, which is beneficial to saving manpower and improving the intelligent degree. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The figure is a structural schematic diagram of the anode busbar mechanism.

[0028] Mark explanation: 1. Fixed anode busbar; 2. Mobile anode busbar; 3. Anode guide rod; 4. Fixed small box fixture; 5. Mobile small box fixture; 6. Conductive soft belt. DETAILED DESCRIPTION

[0029] In order to solve the problems in the background technology, the core inventive concept of the present invention is: an additional fixed anode busbar is added which always stays at the same height. When the movable anode busbar is lifted, the fixed anode busbar and the anode guide rod are electrically connected through a fixed small box clamp, thereby eliminating the need for staff to operate the multi-functional overhead crane, which is conducive to saving manpower and improving the level of intelligence.

[0030] The present invention is described in further detail below with reference to the examples.

[0031] Specific embodiments of the anode busbar mechanism provided by the present invention: like Figure 1 As shown, the anode busbar mechanism includes an anode guide rod 3, a movable anode busbar 2 that can move up and down, and a fixed anode busbar 1 that is always located at the same height. A movable small box fixture 5 is fixedly connected to the movable anode busbar 2, and a fixed small box fixture 4 is fixedly connected to the fixed anode busbar 1. The fixed anode busbar 1 and the movable anode busbar 2 are connected in series through a conductive soft belt 6.

[0032] Each small box fixture has a clamping state for clamping the anode guide rod 3 and a loosening state for loosening the anode guide rod 3. When the anode guide rod 3 and the movable anode busbar 2 move downward synchronously, the movable small box fixture 5 is in a clamping state and the fixed small box fixture 4 is in a loosening state. When the movable anode busbar 2 is lifted, the movable small box fixture 5 is in a loosening state and the fixed small box fixture 4 is in a clamping state.

[0033] The movable anode busbar 2 and the fixed anode busbar 1 are both suspended from the electrolytic cell by the anode lifting mechanism. During normal operation of the electrolytic cell, the movable anode busbar 2 can move up and down, with upper and lower limits, similar to the prior art. However, unlike the prior art, the fixed anode busbar 1 always remains at the same height.

[0034] It can be understood by those skilled in the art that, in the present invention, the anode guide rod 3 is the existing anode guide rod 3; the movable small box fixture 5 and the fixed small box fixture 4 are both existing small box fixtures; the fixed anode busbar 1 and the movable anode busbar 2 are also both existing anode busbars, that is, those skilled in the art can believe that: Figure 1In the specific embodiment shown, the present application changes the existing one anode busbar into two identical anode busbars; the conductive soft band 6 is a soft band made of conductive metal material such as aluminum, so as to ensure that the moving anode busbar 2 and the fixed anode busbar 1 are in series (i.e. to ensure that the current on the moving anode busbar 2 and the fixed anode busbar 1 is the same).

[0035] In the working process of the electrolytic cell, the anode guide rod 3 and the moving anode busbar 2 gradually move downward, in this process, since the moving small box clamp 5 is in the clamping state, the moving anode busbar 2 is electrically connected with the anode guide rod 3, and since the fixed small box clamp 4 is in the loosening state, the fixed anode busbar 1 will not move with the anode guide rod 3. When the moving anode busbar 2 moves to the lower limit position, the moving anode busbar 2 needs to be lifted.

[0036] In the process of lifting the moving anode busbar 2, since the fixed small box clamp 4 is in the clamping state, the anode guide rod 3 is electrically connected with the fixed anode busbar 1, and since the moving small box clamp 5 is in the loosening state, the moving anode busbar 2 can be lifted to the upper limit position without moving the anode guide rod 3.

[0037] In the whole process of lifting the moving anode busbar 2, the anode guide rod 3 does not need to be tightly attached to the moving anode busbar 2 by the multifunctional crown block, and the fixed small box clamp 4 can ensure that the anode guide rod 3 is electrically connected with the fixed anode busbar 1, thereby avoiding long-time power failure of the electrolytic cell. Therefore, during the process of lifting the moving anode busbar 2, the staff does not need to operate the multifunctional crown block, which is beneficial to saving manpower and improving the intelligent degree.

[0038] It needs to be specially pointed out that when lifting the moving anode busbar 2, the anode guide rod 3 can be fixed in the following two ways: way one, the same as the prior art, the anode guide rod 3 is fixed by the lifting frame, and different from the prior art, the anode guide rod 3 is also fixed by the fixed anode busbar 1 and the fixed small box clamp 4; way two, the anode guide rod 3 is only fixed by the fixed anode busbar 1 and the fixed small box clamp 4, and the lifting frame does not fix the anode guide rod 3.

[0039] Preferably, in the specific embodiment shown, the anode guide rod 3 is fixed by the fixed small box clamp 4 and the fixed anode busbar 1. Figure 1 In the specific embodiment shown, each anode busbar is arranged horizontally, and the anode guide rod 3 is arranged at intervals with at least two, and each anode busbar has a small box clamp matched with all the anode guide rods 3, at this time, the specification of the electrolytic cell is larger.

[0040] In other specific embodiments, referring to Figure 1 As shown, the anode guide rod 3 is only one, at this time, the specification of the electrolytic cell is smaller.

[0041] In a large prebaked electrolytic cell of 200 kA to 600 kA, the number of carbon anodes is 24 to 56, each carbon anode corresponds to an anode guide rod 3, and all anode guide rods 3 can be matched with the same movable anode busbar 2 and the same fixed anode busbar 1; alternatively, the anode guide rods 3 are divided into two rows, with two movable anode busbars 2 and two fixed anode busbars 1, one row of anode guide rods 3 is matched with one movable anode busbar 2 and one fixed anode busbar 1, and the other row of anode guide rods 3 is matched with another movable anode busbar 2 and another fixed anode busbar 1.

[0042] In electrolytic cells of other specifications, those skilled in the art can also design the number of movable anode busbars 2 and fixed anode busbars 1 according to actual needs. The number of anode guide rods 3 corresponding to the movable anode busbars 2 and fixed anode busbars 1 can also be two, three or other numbers, which will not be repeated here.

[0043] Preferably, Figure 1 In the specific embodiment shown, the fixed anode busbar 1 is located directly above the movable anode busbar 2 to reduce the height of the movable anode busbar 2 so as to adapt to the existing lifting frame.

[0044] Figure 1 The main difference between the specific embodiment shown and the prior art is that: Figure 1 In the specific embodiment shown, the fixed anode busbar 1 is directly added above the existing movable anode busbar 2, and the position of the existing movable anode busbar 2 does not need to be changed.

[0045] In other embodiments, referring to Figure 1 As shown, the fixed anode busbar 1 can also be arranged below the movable anode busbar 2.

[0046] Preferably, Figure 1 In the specific embodiment shown, the number of the movable anode busbar 2 and the number of the fixed anode busbar 1 connected to the same anode guide rod 3 are both one, and the structure is simple.

[0047] In other embodiments, referring to Figure 1 As shown, the number of movable anode busbars 2 and fixed anode busbars 1 connected to the same anode guide rod 3 is at least two, and specifically can be two, three, or more. The entirety of all movable anode busbars 2 connected in parallel and the entirety of all fixed anode busbars 1 connected in parallel are connected in series via a conductive soft strip 6. At this time, all movable anode busbars 2 connected to the same anode guide rod 3 are connected in parallel, all fixed anode busbars 1 connected to the same anode guide rod 3 are connected in parallel, and any movable anode busbar 2 connected to the same anode guide rod 3 and any fixed anode busbar 1 connected to the same anode guide rod 3 are connected in series.

[0048] The specific embodiment of the lifting method of the anode busbar mechanism provided by the present application is as follows: Referring to Figure 1 the specific embodiment of the lifting method of the anode busbar mechanism provided by the present application is as follows:

[0049] When the movable anode busbar 2 is lifted, the following steps can be performed: Step S1, loosen the movable small box clamp 5 and tighten the fixed small box clamp 4; Step S2, lift the movable anode busbar 2 to the upper limit position, and the specific lifting method is the same as that of the prior art, which will not be described here; Step S3, tighten the movable small box clamp 5 and loosen the fixed small box clamp 4.

[0050] In step S1, there are two different operation modes as follows: Operation mode one, first tighten the fixed small box clamp 4, and then loosen the movable small box clamp 5; Operation mode two, first loosen the movable small box clamp 5, and then tighten the fixed small box clamp 4.

[0051] In operation mode one, during the time period from when the fixed small box clamp 4 is tightened to when the movable small box clamp 5 is loosened, the fixed small box clamp 4 and the movable small box clamp 5 are both in the clamping state, the fixed anode busbar 1 and the movable anode busbar 2 are directly connected through the anode guide rod 3, at this time, there is still current on the anode guide rod 3, thereby ensuring that the electrolytic tank is always powered on.

[0052] In operation mode two, during the time period from when the movable small box clamp 5 is loosened to when the fixed small box clamp 4 is tightened, the anode guide rod 3 does not contact any anode busbar, and the electrolytic tank is short-circuited. Since this period of time is very short, usually a few seconds to a few tens of seconds, the temperature of the electrolyte in the electrolytic tank will not change significantly, and no safety accidents will occur. However, production cannot continue when the electrolytic tank is powered off, so production efficiency will be reduced.

[0053] Similarly, in step S3, there are two different operation modes as follows: Operation mode three, first tighten the movable small box clamp 5, and then loosen the fixed small box clamp 4; Operation mode four, first loosen the fixed small box clamp 4, and then tighten the movable small box clamp 5.

[0054] Similarly, in the third operation mode, the anode guide rod 3 still has current during the period from when the moving small box fixture 5 is tightened to when the fixed small box fixture 4 is loosened, and the electrolytic cell is always powered on; in the fourth operation mode, the electrolytic cell is powered off for a short time during the period from when the fixed small box fixture 4 is loosened to when the moving small box fixture 5 is tightened, and production cannot continue.

[0055] It needs to be specially pointed out that in the first operation mode and the third operation mode, the anode guide rod 3 can be fixed by the lifting frame first, or the anode guide rod 3 can be fixed by the fixed small box fixture 4 only without the lifting frame; in the second operation mode and the fourth operation mode, the anode guide rod 3 must be fixed by the lifting frame first to avoid the anode guide rod 3 from falling into the electrolytic cell when the moving small box fixture 5 and the fixed small box fixture 4 are both loosened.

[0056] Preferably, each small box fixture corresponds to a triangular plate locking mechanism, and the tightening and loosening of each small box fixture is controlled by the triangular plate locking mechanism, which is controlled by a motor, so that manual tightening or loosening of the small box fixture is not required. Of course, the automatic loosening and tightening device mentioned in the background art can also be used to automatically loosen and tighten each small box fixture, which will not be described here.

[0057] When the moving anode bus 2 and the fixed anode bus 1 correspond to at least two anode guide rods 3, preferably in a specific embodiment, in steps S1 and S3, all small box fixtures on the same type of anode bus (the number of which can be one, two or more) are operated simultaneously first, and then all small box fixtures on another type of anode bus (the number of which can be one, two or more) are operated simultaneously, thereby shortening the operation time. At this time, the number of triangular plate locking mechanisms is large, and the cost is high.

[0058] In other specific embodiments, referring to the Chinese utility model patent with the authorization announcement number CN219255403U mentioned in the background art, the wrench loosening and tightening mechanism can move back and forth along the longitudinal direction of the lifting frame and automatically loosen and tighten the small box fixture, thereby reducing the number of wrench loosening and tightening mechanisms and reducing the cost, but this will result in longer operation time and thus longer time for lifting the moving anode bus 2.

[0059] Finally, it needs to be explained that the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, for those skilled in the art, still can not need to pay the creative labor to modify the technical scheme recorded in the foregoing embodiments, or to make equivalent replacement to part of the technical features, or to organically combine different specific embodiments, so as to combine the specific embodiments given in the drawings, of course, those skilled in the art can also combine the specific embodiments not given in the drawings of the remaining specification. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An anode busbar mechanism, comprising an anode guide rod and a movable anode busbar capable of moving up and down, wherein a movable small box fixture is fixedly connected to the movable anode busbar, characterized in that: The invention also includes a fixed anode busbar that is always located at the same height, a fixed small box fixture is fixedly connected to the fixed anode busbar, and the fixed anode busbar and the movable anode busbar are connected in series via a conductive soft belt; Each small box fixture has a clamping state for clamping the anode guide rod and a loosening state for loosening the anode guide rod. When the anode guide rod and the movable anode busbar move downward synchronously, the movable small box fixture is in a clamping state and the fixed small box fixture is in a loosening state. When the movable anode busbar is lifted, the movable small box fixture is in a loosening state and the fixed small box fixture is in a clamping state.

2. The anode busbar structure according to claim 1, characterized in that: Each anode busbar is arranged horizontally, and at least two anode guide rods are arranged at intervals. Each anode busbar is provided with a small box fixture that matches all anode guide rods.

3. The anode busbar structure according to claim 1 or 2, characterized in that: The fixed anode busbar is located directly above the movable anode busbar.

4. The anode busbar structure according to claim 1 or 2, characterized in that: The number of the movable anode busbar and the fixed anode busbar connected to the same anode guide rod is both one.

5. The anode busbar structure according to claim 1 or 2, characterized in that: The number of movable anode busbars and fixed anode busbars connected to the same anode guide rod is at least two, and the whole of all movable anode busbars connected in parallel and the whole of all fixed anode busbars connected in parallel are connected in series through conductive soft belts.

6. A method for lifting an anode busbar mechanism, characterized in that: The anode busbar mechanism is the anode busbar mechanism described in claim 1. When lifting and moving the anode busbar, the following steps can be followed: Step S1, loosen the movable small box fixture and tighten the fixed small box fixture; Step S2, lifting and moving the anode busbar to the upper limit position; Step S3: Tighten the movable small box fixture and loosen the fixed small box fixture.

7. The method for lifting the anode busbar mechanism according to claim 6, characterized in that: In step S1, first tighten the fixed small box fixture, and then loosen the movable small box fixture.

8. The method for lifting the anode busbar mechanism according to claim 6, characterized in that: In step S3, first tighten the movable small box fixture, and then loosen the fixed small box fixture.

9. The method for lifting the anode busbar mechanism according to any one of claims 6 to 8, characterized in that: Each anode busbar is arranged horizontally, and at least two anode guide rods are arranged at intervals. Each anode busbar is provided with a small box fixture that matches all anode guide rods.

10. The method for lifting the anode busbar mechanism according to claim 9, characterized in that: In step S1 and step S3, all the small box fixtures on the same type of anode busbar are operated simultaneously first, and then all the small box fixtures on another type of anode busbar are operated simultaneously.

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