CN105256333B9 - Anode replacing system for aluminum electrolysis production - Google Patents
Anode replacing system for aluminum electrolysis production Download PDFInfo
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- CN105256333B9 CN105256333B9 CN201510817442.XA CN201510817442A CN105256333B9 CN 105256333 B9 CN105256333 B9 CN 105256333B9 CN 201510817442 A CN201510817442 A CN 201510817442A CN 105256333 B9 CN105256333 B9 CN 105256333B9
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Abstract
The invention discloses an anode replacing system for aluminum electrolysis production. The device comprises an anode lifting mechanism provided with a stroke measuring device, an anode clamp, an anode height measuring device and a control system; the anode height measuring device comprises a measuring lifting rod, a guide mechanism for driving the measuring lifting rod to move and a measuring cross rod; the guide mechanism is provided with a metering device for metering and measuring the lifting stroke of the lifting rod; the guide mechanism is fixedly connected with the anode lifting mechanism, the upper end of the measuring lifting rod is connected with the guide mechanism, the lower end of the measuring lifting rod is connected with the measuring cross rod, and the anode lifting mechanism and the guide mechanism are respectively connected with the control system. When the system is adopted to replace the anode, a fixed platform is not needed, the new residual anode is not needed to be hoisted for multiple times, and the anode replacement efficiency is high; the anode replacement work can be completely finished in the operation room of the multifunctional electrolysis unit, the labor intensity of a scribing operator is greatly reduced, the potential safety hazard is eliminated, and the method has important popularization and application values.
Description
Technical Field
The invention relates to the field of aluminum electrolysis, in particular to an anode replacement system for aluminum electrolysis production.
Background
In the production process of aluminum electrolysis, the anode carbon blocks are continuously consumed along with the electrolysis, and need to be replaced when consumed to a certain degree. The worn anode to be replaced is called the old anode, also called the residual anode, and the replaced anode is called the new anode. According to the production process requirement of aluminum electrolysis, the bottom palm plane of the new electrode and the bottom palm plane of the residual electrode are on the same horizontal plane in the electrolytic bath so as to realize current balance. Therefore, when the anode is replaced, the new and old anodes need to be measured and positioned, and the process needs to be assisted by an aluminum electrolysis multifunctional unit.
The current methods for measuring the height and positioning the anode during replacing the anode comprise the following steps: 1. in the traditional manual marking method, people need to climb above the electrolytic bath, which is unsafe, high in labor intensity, large in error and low in working efficiency; 2. the gravity sensing is used for measurement, so that the replacement of multiple anodes is not facilitated; 3. the measurement is carried out by using the lifting device and the laser device, but false operation is easy to generate due to the fact that laser is interfered by the spectrum of the high-temperature anode scrap carbon block, and the pole changing precision is influenced. In addition, a set of height measuring system developed by overseas Enkanol (REEL group of France) mainly comprises two parts of a DJCG-II type height measuring device and a DJCG-II type movable anode horizontal comparison base. However, the system is not ideal in the practical application process, and the efficiency is low due to the fact that a set of level comparison bases are required; meanwhile, the precision of the anode height measuring platform cannot be guaranteed, and the 16-hour yield of the anode replaced by the anode height measuring platform is not very stable; if the aluminum electrolysis multifunctional unit fails in the electrode assembling process, the data loss condition can also occur, and the data loss condition is difficult to process. The domestic Chinese nonferrous Shenyang metallurgy machinery Co., Ltd has also made an anode height measuring device similar to the ground comparison base, but the application thereof is not widely developed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an anode replacing system for aluminum electrolysis production, wherein the anode replacing device overcomes the defects of unsafety, high labor intensity, large error and low working efficiency of the traditional manual scribing method, overcomes the defect that the measurement by using gravity induction is not beneficial to the replacement of multiple anodes, also overcomes the defect that the pole replacing precision is not enough by using a lifting device and a laser device for measurement technology, and has the characteristics of high automation operation degree, reduced labor intensity, high pole replacing efficiency and high precision.
The purpose of the invention is realized by the following technical scheme:
the anode replacing system for aluminum electrolysis production comprises an anode lifting mechanism provided with a stroke measuring device, an anode height measuring device and a control system; the anode height measuring device comprises a measuring lifting rod, a guide mechanism and a measuring cross rod, wherein the guide mechanism drives the measuring lifting rod to move; the guide mechanism is fixedly connected with the anode lifting mechanism, and the anode lifting mechanism and the guide mechanism are respectively connected with the control system; the guide mechanism is provided with a metering device for metering and measuring the lifting stroke of the lifting rod; and the lower end of the anode lifting mechanism is provided with an anode clamp.
Preferably, the guide mechanism for driving the measurement lifting rod to move further comprises a guide rod, a first driver and a transmission device, wherein the first driver and the transmission device are arranged on the guide rod; the guide rod is fixed on the anode lifting mechanism, and the transmission device is respectively connected with the first driver and the measuring lifting rod.
Preferably, the first driver is one of an electric motor, a hydraulic motor and a pneumatic motor; the transmission device is one or more of a speed reducer mechanism, a linear motion unit mechanism and a steel wire winding wheel mechanism.
Preferably, the transmission device is a linear motion unit mechanism, and the linear motion unit mechanism is divided into a driving part and a guiding part; the driving part comprises a screw rod, a belt and a sliding block; the guide part comprises one of a ball guide rod, a slide rail and a guide wheel guide rail; one end of the sliding block is connected with the screw rod or the belt, and the other end of the sliding block is connected with the upper end of the measuring lifting rod; and the input end of the linear motion unit mechanism is connected with the first driver or the speed reducing mechanism.
Further preferably, be equipped with support piece on the slider, the slider through support piece with measure the lifter and be connected, the upper end of measuring the lifter is equipped with the locating part that prevents the slider and drop. Furthermore, a supporting piece is arranged on the sliding block, a bearing seat is arranged on the measuring lifting rod, and the supporting piece is connected with the bearing seat of the measuring lifting rod.
Preferably, the metering device is an encoder arranged on the first driver or a displacement sensor arranged on the transmission device; the displacement sensor or the encoder is electrically connected with the control system
Preferably, the guide mechanism is arranged on the outer wall of the anode lifting mechanism through a bracket.
Preferably, limit switches are respectively arranged on the upper end and the lower end of the guide mechanism or the supports at the upper end and the lower end of the guide mechanism, and the limit switches are electrically connected with the control system. The measuring lifting rod can be well prevented from moving out of range and rushing to the top due to misoperation or inertia.
Preferably, the device further comprises a second driver, wherein the second driver is one of an electric motor, a hydraulic motor, a pneumatic motor, an air cylinder and a hydraulic cylinder; the second driver is connected with the measuring lifting rod and drives the measuring lifting rod to rotate around the axis, and the second driver is electrically connected with the control system.
Preferably, the second driver or the measuring lifting rod is provided with a limiting device for limiting the rotating angle of the measuring lifting rod.
Preferably, the limiting device comprises a positioning sheet and a limiting switch which are arranged on the measuring lifting rod, and the limiting switch is electrically connected with the control system.
Preferably, the limit switch is a sensor or a mechanical limit switch.
Preferably, the measuring cross rod is fixedly connected with the measuring lifting rod through a bolt.
Preferably, the measuring cross rod is hinged to the measuring lifting rod, so that overload protection of the measuring cross rod can be realized.
In one of the alternative schemes of the hinge joint, one end of the measuring cross rod is hinged to the measuring lifting rod through a torsion spring.
And in the second alternative scheme of the hinge joint, the middle part of the measuring cross rod is connected with the measuring lifting rod through a spring.
According to the third alternative scheme of the hinge joint, one end of the measuring cross rod is provided with a balancing weight, the measuring lifting rod is provided with a driving device, the driving device is connected with a movable head, and the movable head is hinged with the measuring cross rod.
Preferably, the measuring cross rod comprises a driving device and a telescopic rod, the telescopic rod is connected with the measuring lifting rod, and the driving device drives the telescopic rod to stretch.
Preferably, a force measuring device for sensing stress is arranged on the measuring cross rod.
The replacing system comprises a control system and/or a servo driving device, wherein the control system comprises a PLC device and/or a servo driving device which controls the lifting of the anode lifting mechanism, the lifting driving and limiting action of the measuring rod and the rotation of the measuring rod.
Compared with the prior art, the invention has the following beneficial effects:
the invention not only scientifically designs the device capable of automatically measuring the height when the anode is replaced, but also optimizes the structural relationship among the anode lifting mechanism, the anode height measuring device and the control system and the structural design of the measuring lifting rod, the guide mechanism for driving the measuring lifting rod to move, the measuring cross rod and the metering device, provides an integrated replacing system, has high automatic operation degree, and overcomes the defects of insecurity, large labor intensity, large error and low working efficiency of the traditional manual marking method; each part has reasonable structure, smooth connection operation and high pole changing efficiency, and overcomes the defect that the measurement by using gravity induction is not beneficial to the replacement of multiple anodes; the precision is high, has overcome and has used elevating gear and laser device to carry out the measurement technique and has traded the not enough defect of utmost point precision.
In particular, the automatic height measuring device for the anode is used for automatically measuring the height when the anode is replaced, a fixed platform is not needed, the new anode and the residual anode are not needed to be hoisted for many times, and the anode replacing efficiency is high; the anode replacement work can be completely finished in the operation room of the multifunctional electrolysis unit, thereby greatly reducing the labor intensity of a scribing operator and eliminating potential safety hazards; meanwhile, the current efficiency of the electrolytic cell is improved, the yield of the electrolytic cell is increased, and the economic and social benefits are very obvious. Therefore, the method has important practical application and popularization values.
Drawings
FIG. 1 is a schematic view of the structure of an anode replacing apparatus according to embodiment 1;
FIG. 2 is a left side view of the measuring lift pin of embodiment 1;
FIG. 3 is a front view of the position restricting device of embodiment 1;
FIG. 4 is a left side view of the position restricting device of embodiment 1;
FIG. 5 is a plan view of a spacing device in accordance with example 1;
FIG. 6 is a front view of the torsion spring measuring rail of example 1;
FIG. 7 is a left side view of the torsion spring measuring rail of example 1;
FIG. 8 is a schematic view showing the structure of a cross bar for controlling measurement by an extension coil spring according to embodiment 2;
FIG. 9 is a schematic structural view of a guide mechanism according to embodiment 3;
FIG. 10 is a schematic view of the structure of a measuring cross bar controlled by a motor-driven lead screw according to embodiment 3;
FIG. 11 is a schematic structural view of a measuring beam controlled by a hydraulic cylinder according to embodiment 4;
FIG. 12 is a schematic view of the structure of the embodiment 5 in which the air cylinder or the hydraulic cylinder controls the measurement of the rotation of the lifting rod;
FIG. 13 is a schematic view showing measurement of an anode replacing apparatus;
FIG. 14 is a schematic structural view of a stroke measuring device according to embodiment 1;
FIG. 15 is a schematic view of the structure of the measuring beam of embodiment 6.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the same, the same is shown by way of illustration only and not in the form of limitation; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 1, the present embodiment provides an anode replacing system for aluminum electrolysis production, which includes an anode lifting mechanism 5 provided with a stroke measuring device, an anode height measuring device and a control system; the anode height measuring device comprises a measuring lifting rod 2, a guide mechanism 1 for driving the measuring lifting rod to move and a measuring cross rod 3, wherein the upper end of the measuring lifting rod 2 is connected with the guide mechanism 1, and the lower end of the measuring lifting rod is connected with the measuring cross rod 3; the guide mechanism 1 is fixedly connected with an anode lifting mechanism 5, and the anode lifting mechanism 5 and the guide mechanism 1 are respectively connected with a control system (not marked in the figure); the guide mechanism 1 is provided with a metering device for metering and measuring the lifting stroke of the lifting rod; and the lower end of the anode lifting mechanism 5 is provided with an anode clamp 6.
The control system comprises a PLC device and a servo drive device, wherein the PLC device is used for controlling the lifting of the anode lifting mechanism, the lifting drive and the limiting action of the measuring rod and the rotation of the measuring rod.
As shown in fig. 14, the stroke measuring device in the anode lifting mechanism 5 comprises a rack 13, a gear 14 adapted to the rack, and an encoder; the rack 13 is fixed on a moving part of the anode lifting mechanism 5; the gear 14 is fixed on a fixing piece of the anode lifting mechanism 5; the encoder is fixedly connected with the gear 14; the encoder is electrically connected with the control system; when the anode lifting mechanism works in a telescopic mode, the hydraulic cylinder drives the rack 13 to drive the gear 14 to act, and the encoder fixed with the gear 14 measures the movement distance.
The stroke measuring device is arranged on one side of the anode lifting mechanism opposite to the anode height measuring device.
The guide mechanism 1 for driving the measurement lifting rod to move comprises a guide rod, a driver I and a transmission device, wherein the driver I and the transmission device are arranged on the guide rod; the guide rod is fixed on the anode lifting mechanism 5, and the transmission device is respectively connected with the first driver and the measuring lifting rod 2. The first driver can be a servo motor; the transmission device can be a speed reducer mechanism or a linear motion unit mechanism.
As shown in fig. 2, the linear motion unit mechanism includes a screw, a slider 12 and a slide rail; one end of the sliding block 12 is connected with the screw rod, and the other end of the sliding block is connected with the upper end of the measuring lifting rod 2; and the input end of the linear motion unit mechanism is connected with the speed reducer mechanism.
The guide mechanism 1 is driven by a servo motor 11 fixed on one side of the linear motion unit mechanism to drive a screw rod slide block 12 to lift through a slide rail. The measuring lifting rod 2 is fixed on the sliding block 12 through a bearing seat and lifts along with the lifting of the sliding block 12.
In order to avoid interference with anode carbon block residues when the measuring lifting rod 1 is lifted, at least one node 4 is arranged on the measuring lifting rod, the measuring lifting rods 2 at two ends of the node 4 are relatively displaced in the direction parallel to the measuring rod, the relative displacement directions of the measuring lifting rods 2 at two ends of each node are consistent, and thus the transverse distance between the measuring lifting rods 2 and the anode carbon blocks is increased.
The slider is provided with a supporting piece and connected with the measuring lifting rod through the supporting piece, and the upper end of the measuring lifting rod is provided with a limiting piece for preventing the slider from falling. Furthermore, a supporting piece is arranged on the sliding block, a bearing seat is arranged on the measuring lifting rod, and the supporting piece is connected with the bearing seat of the measuring lifting rod.
As shown in fig. 3 to 5, the measuring lifting rod 2 is fixed on a support 84 through a bearing block 83, and the support 84 is fixed on the anode lifting mechanism 5. Stop device is including setting up in the spacer 81 of measuring lifter 2 and setting up in a pair of sensor 8 of measuring lifter 2 both sides, spacer 81 with measure lifter 2 fixed connection, sensor 8 is fixed in on support piece 84 through support 82. The pair of sensors are divided into a first sensor and a second sensor which are respectively positioned on the same horizontal line, and the horizontal line is vertical to the axis of the measuring lifting rod; the positioning plate 81 is in a sector shape, and the included angle of the sector shape is 90 degrees.
When the micro motor 21 drives the measuring lifting rod 2 to rotate, the positioning piece 81 arranged on the measuring lifting rod 2 rotates along with the measuring lifting rod, when the sensor 8 senses the positioning piece 81, a sensing signal is transmitted to the control system, and the control system further controls the start and stop of the micro motor 21.
When the first sensor senses the positioning piece 81, a sensing signal is transmitted to the control system, the measuring lifting rod 2 continues to rotate towards the same direction, and when the second sensor senses the positioning piece 81, a sensing signal is transmitted to the control system, so that the fact that the rotating angle a of the measuring lifting rod 2 is 90 degrees in the period from the time when the first sensor receives the signal of the second sensor is known. And controlling the rotation position of the measuring cross rod 3 according to the frequency and sequence of receiving the signals of the first sensor and the second sensor and the fixed installation position relationship between the positioning sheet 81 and the measuring cross rod 3.
Before measurement, the micro motor 21 drives the measuring rod 2 to rotate, so that the measuring transverse rod 3 rotates to one end far away from the residual anode 7.
The servo motor 11 drives the measuring lifting rod 2 to descend, and when the measuring cross rod 3 is lower than the bottom palm plane of the residual anode 7, the micro motor drives the measuring lifting rod 2 to rotate, so that the measuring cross rod 3 is arranged below the bottom palm plane of the residual anode 7.
As shown in fig. 6 to 7, the measuring cross rod 3 is provided with an overload protection, and one end of the measuring cross rod 3 is hinged to the measuring lifting rod 2 through a torsion spring 31. When the measurement is performed, the free end of the measuring crossbar 3 is pressed vertically downwards from the anode carbon block, and the counter torque produced by the torsion spring 31 is used to avoid overloading the measuring crossbar 2.
As shown in fig. 13, the anode lift mechanism 5 is lowered, the anode holder 2 is lowered from the initial plane L1 to grasp the anode scrap 7 to stop, and the distance H1 moved by the anode lift mechanism 5 from the movement to the stop is calculated by the stroke measuring device mounted on the anode lift mechanism 5.
The anode lifting mechanism 5 lifts the residual anode 7 to the initial plane L11. The measuring cross rod 3 descends to measure the bottom palm plane of the anode scrap 7, and the stopping of the measuring cross rod 2 is controlled by setting a torque protection value for the servo motor, namely when the induced torque value is larger than a set value, the measuring cross rod stops. An encoder connected to the servomotor measures the distance H11 traveled by the measuring beam 3 from the home position to the stop position.
Similarly, when the new pole 9 is lifted, the anode lifting mechanism 5 moves to make the measuring cross bar 3 be positioned on the same initial plane as that when the residual pole 7 is lifted, and the measuring cross bar 3 is lowered to be lower than the bottom palm plane of the new pole 9. The measuring beam 2 stops moving and an encoder connected to the servo motor calculates the distance H22 the measuring beam 3 moves from the home position to the stop position.
The initial planes L1, L11 are determined by the distance by which the anode lifting mechanism is extended and retracted. The initial position of the measuring cross rod is the position of the measuring cross rod when the measuring lifting rod is at the retracted limit position.
Thus, the distance that the anode lift mechanism 5 moves from the initial plane L1 to the target position of the new pole when changing the new pole 9 is calculated to be H1- | H11-H22 |.
The new pole 9 is extracted by the anode holder 6, and the new pole 9 is placed at the calculated new pole target position.
Example 2
The first lifting driver of the measuring lifting rod 2 is a pneumatic motor or a hydraulic motor.
And a second rotary driver of the measuring lifting rod 2 is a pneumatic motor or a hydraulic motor.
The linear motion unit mechanism comprises a screw rod, a sliding block and a guide rod. The pneumatic motor or the hydraulic motor fixed on one side of the linear motion unit mechanism drives the screw rod to drive the slide block 12 to move on the guide rod for lifting.
As shown in fig. 8, the measuring lifting rod 2 is hinged with the measuring cross rod 3; an extension spiral spring 32 is further arranged between the measuring lifting rod and the measuring cross rod, and two ends of the extension spiral spring 32 are fixedly connected with the measuring lifting rod 2 and the measuring cross rod 3 respectively. When the measurement is performed, the free end of the measuring rail 3 is pressed vertically downwards from the anode carbon block, and the tension of the tension coil spring 32 is used to avoid overloading the measuring rail.
And the free end of the measuring cross rod 3 is provided with a pressure sensor, and the pressure sensor is electrically connected with a control system. When in measurement, the pressure sensor senses the pressure from the plane of the bottom palm of the anode carbon block, and when the pressure value exceeds a limit value, the measuring cross rod stops moving.
Example 3
Fig. 9 is a schematic view of the structure of the metering device and the guide mechanism in embodiment 3.
The metering device comprises a rack mechanism 96, a gear 95 meshed with the rack mechanism, and an encoder or a displacement sensor; the rack mechanism 96 is arranged on the measuring lifting rod 2, the gear is fixed on the guide rod 93, and the encoder or the displacement sensor is fixedly connected with the gear 95.
The guide mechanism comprises a guide rod 93, a motor 11 arranged above the guide rod 93 and a steel wire winding wheel mechanism; the guide rod 93 is fixedly connected with an anode lifting mechanism.
The steel wire winding wheel mechanism comprises a fixed pulley 91, a steel wire rope 92 and a guide wheel 94; the fixed pulley is connected with a measuring lifting rod 2 through a steel wire rope 92, and the measuring lifting rod moves through a guide wheel.
The first driver 11 drives the fixed pulley 91 to drive the steel wire rope 92 to move so as to drive the rack 96 to move, and therefore the gear 95 is driven to rotate; the lifting distance of the lifting rod is measured by an encoder fixed on the gear 95.
And a first lifting driver 11 of the measuring lifting rod 2 is a motor.
As shown in fig. 10, the motor 33 drives the lead screw telescopically controlled. The measuring cross rod 3 comprises a driver 33 and a telescopic rod, the telescopic rod is connected with the measuring lifting rod 2, and the driver 33 drives the telescopic rod to stretch. The driver is a motor.
The measuring cross rod 3 is driven by a motor 33 screw rod and can be stretched. When the measuring cross rod 3 is lifted, the contact 331 is in contact with the bottom palm plane of the anode, the contact 331 is a force measuring device, and when the pressure is applied, a signal is fed back to a control system, so that the stopping time of the measuring lifting rod 2 is controlled, and the moving distance is measured.
Example 4
The transmission device of the measuring lifting rod is a linear motion unit mechanism; the linear motion unit mechanism comprises a belt, a sliding block and a guide wheel guide rail. The motor fixed on one side of the linear motion unit mechanism drives the belt to drive the sliding block 12 to move on the guide wheel guide rail for lifting.
As shown in fig. 11, the overload protection rotation of the measuring cross bar 3 is the protection of the hydraulic cylinder counterweight. The measuring cross rod 3 is hinged to the measuring lifting rod 2, a balancing weight 341 is arranged at one end of the measuring cross rod 3, the measuring lifting rod 2 is provided with a hydraulic cylinder 34, a movable head of the hydraulic cylinder 34 is hinged to the measuring cross rod 3, and the measuring lifting rod 2 is provided with a limiting block for limiting the measuring cross rod to rotate.
The motor 11 drives the measuring lifting rod 2 to ascend, and the measuring cross rod 3 ascends along with the ascending. When the measuring crossbar 3 contacts the bottom palm plane of the anode carbon block 7, if the measuring crossbar continues to rise, the balancing weight 341 can be used to balance the pressure F from the anode carbon block 7, which is applied to the measuring crossbar 3 and vertically downward. When the force F is greater than the weight of the weight 341, the cross bar rotates to achieve the protection purpose. The hydraulic cylinder 11 can drive the measuring cross rod 3 to ascend and descend vertically and is used for retracting the measuring cross rod 3 so as to reduce the occupation of the measuring cross rod 3 on the space position.
Example 5
The transmission device is a linear motion unit mechanism; the linear motion unit mechanism comprises a belt, a sliding block and a sliding rail. One end of the sliding block 12 is connected with a belt, and the other end of the sliding block is connected with the upper end of the measuring lifting rod 2; the motor fixed on one side of the linear motion unit mechanism drives the belt to drive the sliding block 12 to move on the sliding rail for lifting.
Fig. 12 shows a plan view of the measuring boom 2.
The second driver 211 is an air cylinder or a hydraulic cylinder.
The movable end of the second driver 211 is hinged with the measuring lifting rod, and the hinged point is positioned at the upper end of the measuring lifting rod 2. The second driver 211 drives the second measuring lifting rod 2 to rotate around the axis of the second measuring lifting rod 2.
Example 6
The transmission device is a linear motion unit mechanism; the linear motion unit mechanism comprises a belt, a sliding block and a guide wheel guide rail. One end of the sliding block 12 is connected with the belt, and the other end of the sliding block is connected with the upper end of the measuring lifting rod 2; the motor fixed on one side of the linear motion unit mechanism drives the belt to drive the slide block 12 to move on the guide wheel guide rail for lifting.
As shown in fig. 15, the measuring lifting rod 2 is fixedly connected with the measuring cross rod 3 through bolts.
The measuring cross rod 3 is provided with a force measuring device 331.
It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (20)
1. An anode replacing system for aluminum electrolysis production is characterized by comprising an anode lifting mechanism provided with a stroke measuring device, an anode height measuring device and a control system; the anode height measuring device comprises a measuring lifting rod, a guide mechanism and a measuring cross rod, wherein the guide mechanism drives the measuring lifting rod to move; the guide mechanism is fixedly connected with the anode lifting mechanism, and the anode lifting mechanism and the guide mechanism are respectively connected with the control system; the guide mechanism is provided with a metering device for metering and measuring the lifting stroke of the lifting rod; and the lower end of the anode lifting mechanism is provided with an anode clamp.
2. The anode replacing system for aluminum electrolysis production according to claim 1, wherein the guiding mechanism for driving the measuring lifting rod to move further comprises a guide rod, a first driver and a transmission device, wherein the first driver and the transmission device are arranged on the guide rod; the guide rod is fixedly connected with the anode lifting mechanism, and the transmission device is respectively connected with the first driver and the measuring lifting rod.
3. The anode replacement system for aluminum electrolysis production according to claim 2, wherein the first driver is one of an electric motor, a hydraulic motor or a pneumatic motor; the transmission device is one or more of a speed reducer mechanism, a linear motion unit mechanism and a steel wire winding wheel mechanism.
4. The anode replacement system for aluminum electrolysis production according to claim 3, wherein the transmission device is a linear motion unit mechanism, and the linear motion unit mechanism is divided into a driving part and a guiding part; the driving part comprises a screw rod, one of belts and a sliding block; the guide part comprises one of a ball guide rod, a slide rail and a guide wheel; one end of the sliding block is connected with the screw rod or the belt, and the other end of the sliding block is connected with the upper end of the measuring lifting rod; and the upper end of the linear motion unit mechanism is connected with a driver I or a speed reducer mechanism.
5. The anode replacing system for aluminum electrolysis production according to claim 4, wherein the sliding block is provided with a support member, the sliding block is connected with the measuring lifting rod through the support member, and the upper end of the measuring lifting rod is provided with a limiting member for preventing the sliding block from falling off.
6. The anode replacement system for aluminum electrolysis production according to claim 1, wherein the metering device is an encoder arranged on the first driver or a displacement sensor arranged on the transmission device; the displacement sensor or the encoder is electrically connected with the control system.
7. The anode replacement system for aluminum electrolysis production according to claim 1, wherein the metering device comprises a rack, a gear engaged with a rack mechanism, an encoder or a displacement sensor; the rack is arranged on the measuring lifting rod, and the encoder or the displacement sensor is fixedly connected with the gear.
8. The anode replacement system for aluminum electrolysis production according to claim 1 or 2, wherein the guide mechanism is arranged on the outer wall of the anode lifting mechanism through a bracket.
9. The anode replacing system for aluminum electrolysis production according to claim 2, wherein the upper and lower ends of the guide mechanism or the brackets at the upper and lower ends of the guide mechanism are respectively provided with a limit switch, and the limit switches are electrically connected with the control system.
10. The anode replacing system for aluminum electrolysis production according to claim 1, further comprising a second driver, wherein the second driver is one of an electric motor, a hydraulic motor, a pneumatic motor, a cylinder or a hydraulic cylinder; the second driver is connected with the measuring lifting rod and drives the measuring lifting rod to rotate around the axis, and the second driver is electrically connected with the control system.
11. The anode replacing system for aluminum electrolysis production according to claim 10, wherein the second driver or the measuring lifting rod is provided with a limiting device for limiting the rotation angle of the measuring lifting rod.
12. The anode replacing system for aluminum electrolysis production according to claim 11, wherein the limiting device comprises a positioning sheet arranged on the measuring lifting rod and a limiting switch, and the limiting switch is electrically connected with the control system.
13. The anode replacement system for aluminum electrolysis production according to claim 9 or 12, wherein the limit switch is a sensor or a mechanical limit switch.
14. The anode replacing system for aluminum electrolysis production according to claim 1, wherein the measuring cross bar is hinged to the measuring lifting bar or is fixedly connected with the measuring lifting bar through a bolt.
15. The anode changing system for aluminum electrolysis production according to claim 14, wherein one end of the measuring cross bar is hinged to the measuring lifting bar by a torsion spring.
16. The anode changing system for aluminum electrolysis production according to claim 14, wherein the middle part of the measuring cross bar is connected with the measuring lifting bar through a spring.
17. The anode replacing system for aluminum electrolysis production according to claim 14, wherein one end of the measuring cross bar is provided with a counterweight, the measuring lifting bar is provided with a driving device, the driving device is connected with a movable head, and the movable head is hinged with the measuring cross bar.
18. The anode replacing system for aluminum electrolysis production according to claim 1, wherein the measuring cross bar comprises a driving device and a telescopic rod, the telescopic rod is connected with the measuring lifting rod, and the driving device drives the telescopic rod to extend and retract.
19. The anode replacement system for aluminum electrolysis production according to claim 1, wherein the measuring cross bar is provided with a force measuring device for sensing force.
20. The anode replacing system for aluminum electrolysis production according to claim 1, wherein the control system comprises a PLC device and/or a servo drive device for controlling the elevation of the anode elevating mechanism, the elevation drive and the limit action of the measuring rod and the rotation of the measuring rod.
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| CN110029369A (en) * | 2019-05-31 | 2019-07-19 | 中国有色（沈阳）冶金机械有限公司 | A kind of pot tending machine more anode changing device |
| CN111485254A (en) * | 2020-05-26 | 2020-08-04 | 贵阳铝镁设计研究院有限公司 | Intelligent twisting and pulling device and method for aluminum electrolysis multifunctional unit |
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| US4221641A (en) * | 1978-04-03 | 1980-09-09 | Swiss Aluminium Ltd. | Method of changing electrodes in a reduction cell |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105256333B (en) | 2017-09-22 |
| CN105256333A (en) | 2016-01-20 |
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Denomination of invention: An anode replacement system for aluminum electrolysis production Effective date of registration: 20220419 Granted publication date: 20170922 Pledgee: Zhuzhou Road sub branch of people's Bank of China Ltd. Pledgor: ZHUZHOU TIANQIAO CRANE Co.,Ltd. Registration number: Y2022980004457 |
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Correction item: Description Correct: Paragraphs 1-100 of the specification submitted on June 23, 2022 False: Paragraphs 1-77 of the instructions submitted on January 13, 2016 Number: 38-02 Page: ?? Volume: 33 |
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