Pole-changing operation system and method for aluminum electrolysis multifunctional overhead crane drive unit

Abstract

The invention discloses a pole-changing operation system and method of a multifunctional overhead crane drive unit for aluminum electrolysis, wherein a planar motion mechanism is installed on a trolley, a tool rotating device is installed on the planar motion mechanism, a lifting drive unit is arranged on the tool rotating device, and the lifting drive unit has a universal connecting mechanism that can be connected with an anode replacement device, a slag scooping mechanism, and a shell breaking mechanism. The universal connecting mechanism is T-shaped, and a fixed frame is installed at the lower part of the trolley. The anode replacement device, the slag scooping mechanism, and the shell breaking mechanism are suspended and fixed on the fixed frame. During the pole-changing operation, the trolley arrives at the specified position, the trolley and the trolley stop moving, and the tool rotating device is driven by the planar motion mechanism to drive the lifting drive unit to realize horizontal movement and rotational movement in the plane, and the replacement of the working tool and the operation task after the replacement are completed by the universal connecting mechanism of the lifting drive unit.

Description

Technical Field

[0001] The invention relates to the technical field of nonferrous metallurgy aluminum electrolysis, and in particular to a pole-changing operation system of an aluminum electrolysis multifunctional overhead crane drive unit, and a working method of the system. Background Art

[0002] The multifunctional overhead crane for electrolytic aluminum is the main equipment for assisting the production of electrolytic aluminum in the process of aluminum electrolysis. After more than 30 years of development, the electrolytic aluminum industry has gradually become an important basic industry in China. At present, most electrolytic aluminum processes at home and abroad adopt the process of cryolite-alumina molten salt electrolysis. Molten cryolite is the solvent, alumina is the solute, carbonite is the anode, and aluminum liquid is the cathode. After a strong direct current is passed, an electrochemical reaction is carried out at the two poles in the electrolytic cell at 950℃-970℃, that is, electrolysis. In this electrolysis process, the carbon block of the anode guide rod is electrolytically burned and becomes a residual electrode, which needs to be replaced regularly. When replacing, the anode guide rod must first be marked, and then the covering material on the surface of the anode guide rod must be cleaned; the hard covering material covering the anode guide rod must be impacted and crushed with an air hammer impact device; the broken covering material must be cleaned, and finally the anode guide rod and the damaged carbon block must be pulled out as a whole. After the anode guide rod is pulled out, the electrolytic impurities in the electrolytic cell must be slag-removed, and then a new anode guide rod must be replaced after the slag is removed. The entire replacement process involves three key process steps, namely: the hammering and crushing of the anode guide rod covering material, the twisting and pulling out of the damaged anode guide rod, and the slag removal of impurities in the electrolytic cell.

[0003] At present, the existing multifunctional overhead crane has a tool rotating device installed on the trolley of the overhead crane, and three sets of shell breaking mechanisms, anode replacement devices, and slag scooping mechanisms, each with independent lifting functions, are installed on the tool rotating device. During operation, each operating actuator automatically descends to the corresponding working position, and then automatically rises and retracts after the operation is completed. The three operating mechanisms are: shell breaking mechanism, anode replacement device, and slag scooping mechanism. Shell breaking mechanism: The lifting device is composed of a lifting guide rod and a lifting cylinder, and the shell breaking tool is installed at the lower end of the lifting device. Anode replacement device: The lifting device is composed of a lifting guide rod and a lifting cylinder, and the anode replacement tool is installed at the lower end of the lifting device. Slag scooping mechanism: The lifting device is composed of a lifting guide rod and a lifting cylinder, and the slag scooping tool is installed at the lower end of the lifting device.

[0004] Problems of existing overhead cranes: When working, the three operating mechanisms, each with a lifting function, drive their respective operating tools to descend and ascend through their own lifting devices in turn according to the operating procedures to complete the operation. This results in the complicated mechanism on the tool rotation device, which is large in size, causing the overhead crane to bear a large load, with many moving parts, unstable operation, and low positioning accuracy, which is not conducive to the automation and intelligence of the operation process. Summary of the invention

[0005] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to provide a pole changing operation system for an aluminum electrolysis multifunctional overhead crane drive unit, which can reduce the load of the overhead crane, reduce moving parts, improve the operation stability and positioning accuracy, and is conducive to the automation and intelligence of the operation process. At the same time, it also reduces the production, maintenance and use costs of the overhead crane and has good versatility.

[0006] The technical solution of the present invention is: the pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit comprises: a large car (1), a small car (2), a tool rotating device (3), a plane motion mechanism (4), an anode replacement device (5), a lifting drive unit (6), a slag scooping mechanism (8), a fixing frame (9), and a shell breaking mechanism (10);

[0007] A plane motion mechanism is installed on the trolley, a tool rotating device is installed on the plane motion mechanism, a lifting drive unit is arranged on the tool rotating device, the lifting drive unit has a universal connection mechanism that can be connected with the anode replacement device, the slag scooping mechanism, and the shell breaking mechanism, the universal connection mechanism is T-shaped, a fixing frame is installed at the lower part of the trolley, and the anode replacement device, the slag scooping mechanism, and the shell breaking mechanism are suspended and fixed on the fixing frame;

[0008] During pole changing operation, the trolley arrives at the specified position, the trolley and the carriage stop moving, and the tool rotation device is driven by the planar motion mechanism to drive the lifting drive unit to realize horizontal and rotational motion in the plane, and the replacement of the working tool and the working task after replacement are completed through the universal connection mechanism of the lifting drive unit.

[0009] The present invention installs a planar motion mechanism on a trolley, installs a tool rotating device on the planar motion mechanism, arranges a lifting drive unit on the tool rotating device, and the lifting drive unit has a universal connecting mechanism that can be connected with an anode replacement device, a slag scooping mechanism, and a shell breaking mechanism. The universal connecting mechanism is T-shaped, and a fixing frame is installed at the lower part of the trolley. The anode replacement device, the slag scooping mechanism, and the shell breaking mechanism are suspended and fixed on the fixing frame. The structure connecting the three working tools with the lifting drive unit is made into a universal connecting structure, and the original form of directly installing the tool rotating device on the trolley is changed. Instead, a set of planar motion mechanisms is first installed on the trolley, and then the tool rotating device is installed on the planar motion mechanism, and then A lifting drive unit is arranged on the tool rotating device, and the lifting drive unit is equipped with a universal connecting structure connected to the working tool. A working tool fixing frame is installed at the lower part of the trolley, and three working tools are suspended and fixed on the fixing frame. When working, the tool rotating device is driven by the planar motion mechanism to drive the independent lifting drive unit to realize horizontal movement and rotational movement in the plane, and the replacement of the working tool and the working task after replacement are realized through the lifting function. Therefore, the load of the overhead crane can be reduced, the moving parts are reduced, the operation stability and positioning accuracy are improved, which is conducive to the automation and intelligence of the working process, and also reduces the production, maintenance and use costs of the overhead crane, and has good versatility.

[0010] A working method of the pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit is also provided, and the method comprises the following steps:

[0011] (1) The multifunctional overhead crane drives the pole-changing operation system on it to move quickly to the designated working position, and then the trolley and carriage stop moving;

[0012] (2) The planar motion mechanism starts to start, and the planar motion mechanism drives the tool rotating device and the lifting drive unit installed thereon to move in the plane to a predetermined position for hanging the working tool;

[0013] (3) The lifting drive unit rises and fixes the positioning cone into the universal quick-change cone hole. After the fixation is completed, the two-way telescopic cylinder is controlled to drive the clamping arm to clamp the fixing block set on the working tool, thereby completing the quick connection of the working tool to the lifting drive unit;

[0014] (4) The lifting drive unit descends, driving the working tool to descend and completing the predetermined working task;

[0015] (5) The lifting drive unit drives the working tool to rise until its height exceeds the fixed frame, then moves horizontally to approach the fixed cone hole on the fixed frame, and then descends to a certain height to hang the working tool on the fixed frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic front view of the structure of the existing multifunctional overhead crane operating mechanism arrangement.

[0017] Figure 2 It is a top view of the existing multifunctional overhead crane.

[0018] Figure 3 It is a schematic front view of the structure of the multifunctional overhead crane operating mechanism arrangement of the present invention.

[0019] Figure 4 It is a schematic top view of the multifunctional overhead crane structure of the present invention.

[0020] Figure 5 yes Figure 3 An enlarged view of a partial view of .

[0021] Figure 6 It is a schematic diagram of the connection between the multifunctional overhead crane operating tool and the intermediate lifting drive unit of the present invention.

[0022] Figure 7 yes Figure 6 AA section view. DETAILED DESCRIPTION

[0023] like Figure 3-7 As shown, the pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit includes: a large carriage 1, a small carriage 2, a tool rotating device 3, a plane motion mechanism 4, an anode replacement device 5, a lifting drive unit 6, a slag scooping mechanism 8, a fixing frame 9, and a shell breaking mechanism 10;

[0024] A plane motion mechanism is installed on the trolley, a tool rotating device is installed on the plane motion mechanism, a lifting drive unit is arranged on the tool rotating device, the lifting drive unit has a universal connection mechanism that can be connected with the anode replacement device, the slag scooping mechanism, and the shell breaking mechanism, the universal connection mechanism is T-shaped, a fixing frame is installed at the lower part of the trolley, and the anode replacement device, the slag scooping mechanism, and the shell breaking mechanism are suspended and fixed on the fixing frame;

[0025] During pole changing operation, the trolley arrives at the specified position, the trolley and the carriage stop moving, and the tool rotation device is driven by the planar motion mechanism to drive the lifting drive unit to realize horizontal and rotational motion in the plane, and the replacement of the working tool and the working task after replacement are completed through the universal connection mechanism of the lifting drive unit.

[0026] The present invention installs a planar motion mechanism on a trolley, installs a tool rotating device on the planar motion mechanism, arranges a lifting drive unit on the tool rotating device, and the lifting drive unit has a universal connecting mechanism that can be connected with an anode replacement device, a slag scooping mechanism, and a shell breaking mechanism. The universal connecting mechanism is T-shaped, and a fixing frame is installed at the lower part of the trolley. The anode replacement device, the slag scooping mechanism, and the shell breaking mechanism are suspended and fixed on the fixing frame. The structure connecting the three working tools with the lifting drive unit is made into a universal connecting structure, and the original form of directly installing the tool rotating device on the trolley is changed. Instead, a set of planar motion mechanisms is first installed on the trolley, and then the tool rotating device is installed on the planar motion mechanism, and then A lifting drive unit is arranged on the tool rotating device, and the lifting drive unit is equipped with a universal connecting structure connected to the working tool. A working tool fixing frame is installed at the lower part of the trolley, and three working tools are suspended and fixed on the fixing frame. When working, the tool rotating device is driven by the planar motion mechanism to drive the independent lifting drive unit to realize horizontal movement and rotational movement in the plane, and the replacement of the working tool and the working task after replacement are realized through the lifting function. Therefore, the load of the overhead crane can be reduced, the moving parts are reduced, the operation stability and positioning accuracy are improved, which is conducive to the automation and intelligence of the working process, and also reduces the production, maintenance and use costs of the overhead crane, and has good versatility.

[0027] Preferably, the device further comprises a fixing frame connecting rod 7, through which the fixing frame is connected to the trolley.

[0028] Preferably, the device also includes a two-way telescopic cylinder 11 and a clamping arm 12. There are two clamping arms, which are arranged at the lower part of the lifting drive unit. A two-way telescopic cylinder is arranged in the middle of the two clamping arms to control the movement of the two clamping arms, thereby clamping the working tool.

[0029] Preferably, the anode replacement device, slag scooping mechanism and shell breaking mechanism are all provided with fixing blocks 14 at the front and rear sides of the middle part thereof, and the clamping arm clamps the fixing blocks to clamp the working tool.

[0030] Preferably, a universal quick-change cone hole is provided on the top of the fixing frame, and the anode replacement device, slag scooping mechanism and shell breaking mechanism are all provided with a fixed cone 13 on the lower surface of the top that matches the universal quick-change cone hole.

[0031] Preferably, the fixing frame is circular or polygonal.

[0032] Preferably, the lifting drive unit realizes accurate positioning of the lifting position by setting a limit mechanism or by servo control according to the end position required by each working tool.

[0033] Preferably, the operating tool further comprises: an electrolytic cell cover opening mechanism and a slag scoop cooling spraying mechanism.

[0034] A working method of the pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit is also provided, and the method comprises the following steps:

[0035] (1) The multifunctional overhead crane drives the pole-changing operation system on it to move quickly to the designated working position, and then the trolley and carriage stop moving;

[0036] (2) The planar motion mechanism starts to start, and the planar motion mechanism drives the tool rotating device and the lifting drive unit installed thereon to move in the plane to a predetermined position for hanging the working tool;

[0037] (3) The lifting drive unit rises and fixes the positioning cone into the universal quick-change cone hole. After the fixation is completed, the two-way telescopic cylinder is controlled to drive the clamping arm to clamp the fixing block set on the working tool, thereby completing the quick connection of the working tool to the lifting drive unit;

[0038] (4) The lifting drive unit descends, driving the working tool to descend and completing the predetermined working task;

[0039] (5) The lifting drive unit drives the working tool to rise until its height exceeds the fixed frame, then moves horizontally to approach the fixed cone hole on the fixed frame, and then descends to a certain height to hang the working tool on the fixed frame.

[0040] The beneficial effects of the present invention are as follows:

[0041] 1. The three operating mechanisms of the existing multifunctional overhead crane, each with its own lifting function, are simplified to use independent lifting drive units in conjunction with the replacement of different operating tools, optimizing the lifting components of the operating mechanism of the multifunctional overhead crane, reducing the load of the overhead crane, reducing moving parts, improving the stability of operation and positioning accuracy, and facilitating the automation and intelligence of the operation process. At the same time, it also reduces the production, maintenance and use costs of the overhead crane.

[0042] 2. After the existing operating tools are converted into universal quick-change modules, when the multi-functional overhead crane is added with other functions in the future, such as opening the cover of the electrolytic cell, cooling and spraying the slag bucket, etc., the universal quick-change interface can be used to expand the functional modules of the terminal operating tools.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit is characterized by: It includes: A trolley (1), a small trolley (2), a tool rotating device (3), a plane motion mechanism (4), an anode replacement device (5), a lifting drive unit (6), a slag scooping mechanism (8), a fixing frame (9), and a shell breaking mechanism (10); A plane motion mechanism is installed on the trolley, a tool rotating device is installed on the plane motion mechanism, a lifting drive unit is arranged on the tool rotating device, the lifting drive unit has a universal connection mechanism that can be connected with the anode replacement device, the slag scooping mechanism, and the shell breaking mechanism, the universal connection mechanism is T-shaped, a fixing frame is installed at the lower part of the trolley, and the anode replacement device, the slag scooping mechanism, and the shell breaking mechanism are suspended and fixed on the fixing frame; During pole changing operation, the trolley arrives at the specified position, the trolley and the carriage stop moving, and the tool rotation device is driven by the planar motion mechanism to drive the lifting drive unit to realize horizontal and rotational motion in the plane, and the replacement of the working tool and the working task after replacement are completed through the universal connection mechanism of the lifting drive unit.

2. The pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit according to claim 1 is characterized in that: The device also comprises a fixing frame connecting rod (7), through which the fixing frame is connected to the trolley.

3. The pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit according to claim 2 is characterized in that: The device also includes a bidirectional telescopic oil cylinder (11) and a clamping arm (12). There are two clamping arms, which are arranged at the lower part of the lifting drive unit. A bidirectional telescopic oil cylinder is arranged in the middle of the two clamping arms to control the movement of the two clamping arms, thereby clamping the working tool.

4. The pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit according to claim 3 is characterized in that: The anode replacement device, slag scooping mechanism and shell breaking mechanism are all provided with fixing blocks (14) at the front and rear sides of the middle part thereof, and the clamping arm clamps the fixing blocks to clamp the working tool.

5. The pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit according to claim 4 is characterized in that: The top of the fixing frame is provided with a universal quick-change cone hole, and the anode replacement device, slag scooping mechanism and shell breaking mechanism are all provided with a fixed cone (13) on the lower surface of the top that matches the universal quick-change cone hole.

6. The pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit according to claim 1 is characterized in that: The fixing frame is circular or polygonal.

7. The pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit according to claim 1 is characterized in that: The lifting drive unit realizes accurate positioning of the lifting position by setting a limit mechanism or through servo control according to the end position required by each working tool.

8. The pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit according to claim 1 is characterized in that: The operating tools also include: an electrolytic cell cover opening mechanism and a slag hopper cooling spraying mechanism.

9. The working method of the pole-changing operation system of the aluminum electrolysis multifunctional overhead crane drive unit according to claim 5 is characterized in that: The method comprises the following steps: (1) The multifunctional overhead crane drives the pole-changing operation system on it to move quickly to the designated working position, and then the trolley and carriage stop moving; (2) The planar motion mechanism starts to start, and the planar motion mechanism drives the tool rotating device and the lifting drive unit installed thereon to move in the plane to a predetermined position for hanging the working tool; (3) The lifting drive unit rises and fixes the positioning cone into the universal quick-change cone hole. After the fixation is completed, the two-way telescopic cylinder is controlled to drive the clamping arm to clamp the fixing block set on the working tool, thereby completing the quick connection of the working tool to the lifting drive unit; (4) The lifting drive unit descends, driving the working tool to descend and completing the predetermined working task; (5) The lifting drive unit drives the working tool to rise until its height exceeds the fixed frame, then moves horizontally to approach the fixed cone hole on the fixed frame, and then descends to a certain height to hang the working tool on the fixed frame.

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