CN109280939B - Method for controlling electrolytic bath voltage and clamping frame position - Google Patents

Method for controlling electrolytic bath voltage and clamping frame position Download PDF

Info

Publication number
CN109280939B
CN109280939B CN201811540598.8A CN201811540598A CN109280939B CN 109280939 B CN109280939 B CN 109280939B CN 201811540598 A CN201811540598 A CN 201811540598A CN 109280939 B CN109280939 B CN 109280939B
Authority
CN
China
Prior art keywords
clamping frame
anode
lifting
aluminum cylinder
pressing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201811540598.8A
Other languages
Chinese (zh)
Other versions
CN109280939A (en
Inventor
党星培
Original Assignee
党星培
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 党星培 filed Critical 党星培
Priority to CN201811540598.8A priority Critical patent/CN109280939B/en
Publication of CN109280939A publication Critical patent/CN109280939A/en
Application granted granted Critical
Publication of CN109280939B publication Critical patent/CN109280939B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12Anodes
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08Cell construction, e.g. bottoms, walls, cathodes
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/20Automatic control or regulation of cells

Abstract

The invention relates to the technical field of aluminum electrolysis, in particular to a method for controlling the cell voltage of an electrolytic cell and the position of a clamping frame. The technical problems that an existing method for controlling the voltage of the groove and the position of the clamping frame is unreasonable, and operation of the clamping frame is complicated and low in efficiency are solved. The device comprises a clamping frame and at least one aluminum cylinder anode which is arranged in the clamping frame and internally provided with a plurality of conductors, wherein the aluminum cylinder anode comprises an aluminum cylinder which is internally provided with a plurality of conductors contacted with the aluminum cylinder, and at least one anode lifting mechanism which is connected with the clamping frame and is used for adjusting the voltage of the tank; a plurality of first pressing mechanisms in contact with the aluminum cylinder are arranged on the clamping frame; at least one detection unit is arranged around the clamping frame, the detection unit, the first pressing mechanism and the anode lifting mechanism are all connected with the control system, and a cell voltage signal of the electrolytic cell is collected and input into the control system.

Description

Method for controlling electrolytic bath voltage and clamping frame position
Technical Field
The invention relates to the technical field of aluminum electrolysis, in particular to a method for controlling the cell voltage of an electrolytic cell and the position of a clamping frame.
Background
The 201711220109.6 patent discloses a clamping frame of an aluminum electrolysis cell, which is lifted to a designated position by the pressure and the moving force applied to an anode by the movement of a clamping wheel; the patent with application number 201810158781.5 discloses a clamping and jacking device for an aluminum electrolytic cell, which lifts a clamping frame to a specified position by means of pressure and moving force applied to an anode in the operation process of a hanging plate or a flexible chain between a clamping wheel and the aluminum frame and huge friction force between the clamping wheel and the aluminum frame. When the clamping frame is lifted independently by adopting the two technologies, the cell voltage fluctuation is easily caused, the adverse effect is brought to the accurate control of the cell voltage, the normal operation of the electrolytic cell is influenced, and the method for controlling the position of the clamping frame is large in randomness, inaccurate, unscientific and free of automation.
The patent with application number 201611257730.5 discloses a continuous aluminum frame anode aluminum electrolysis cell with a built-in conductor, wherein a clamping frame and a clamping frame I are arranged around the aluminum frame with the built-in conductor, and a plurality of jacking bolts in contact with the aluminum frame and an anode guide rod are arranged on the clamping frame and the clamping frame I. The anode guide rod is pressed on the outer side of the aluminum frame through the pushing bolt, the clamping frame and the clamping frame I clamp and fasten the anode, and the anode is arranged above the cathode. Because the sintered body of the lower part of the anode is continuously consumed, the anode guide rod, the clamping frame and the clamping frame I need to be lifted to the designated position regularly, but in the lifting process, besides the need of auxiliary equipment, the defects of complex operation, multiple processes, long time, the need of multi-person cooperation operation, low level of mechanization and automation, high labor intensity and low working efficiency exist, and the method for controlling the position of the clamping frame has large artificial influence factors and cannot be automatically controlled.
Above-mentioned three kinds of techniques are in the use, and the local deformation that appears of aluminium section of thick bamboo can influence the operation of aluminium section of thick bamboo connection smoothly about the lower and promote the centre gripping frame, still can influence the accurate control of tank voltage.
Disclosure of Invention
The invention provides a method for controlling the cell voltage of an electrolytic cell and the position of a clamping frame, aiming at solving the technical problems that the existing cell voltage and clamping frame position control method is unreasonable, the operation of the clamping frame is complicated and the efficiency is low.
The invention is realized by adopting the following technical scheme: a method for controlling the cell voltage of an electrolytic cell and the position of a clamping frame, wherein the device comprises the clamping frame and at least one aluminum cylinder anode which is arranged in the clamping frame and internally provided with a plurality of conductors, wherein the aluminum cylinder anode comprises an aluminum cylinder, and the device also comprises at least one anode lifting mechanism which is connected with the clamping frame and is used for adjusting the cell voltage and the position of the clamping frame; a plurality of first pressing mechanisms in contact with the aluminum cylinder are arranged on the clamping frame; at least one detection unit is arranged around the clamping frame, and the tank voltage signal acquisition end is connected with a control system; the detection unit, the first pressing mechanism and the anode lifting mechanism are all connected with the control system, and a tank voltage signal is automatically transmitted to the control system;
when the cell voltage and the position of the clamping frame need to be adjusted, the method comprises the following steps:
1) when the clamping frame is positioned in the area above the detection point, the cell voltage and the clamping frame position are adjusted by the anode lifting mechanism through the control system;
2) when the clamping frame is positioned in the detection point position and the area below the detection point position, the groove voltage and the clamping frame position are lifted by the anode lifting mechanism through the control system; the voltage of the tank is reduced and the position of the clamping frame is kept stable through the control system, and the first pressing mechanism is used for executing the voltage reduction of the tank and keeping the position of the clamping frame stable.
The control of the cell voltage and the position of the clamping frame in the process of aluminum electrolysis production is an extremely important work, and is directly related to whether the heat balance of the electrolytic cell can be stable or not and whether the electrolytic cell can be operated normally, efficiently and with low consumption or not. As the metallic aluminum or aluminum alloy is continuously precipitated in the inner lining of the electrolytic cell, the lower part of the anode is continuously consumed, causing the cell voltage fluctuation and the position change of the clamping frame. In order to keep the cell voltage stable and the clamping frame continuously and effectively run, the whole anode needs to move downwards or upwards at intervals, so that the cell voltage and the position of the clamping frame can be accurately kept within the process specified range by lifting the anode by the method provided by the invention.
The detection point position refers to the position where the detection unit starts to sense and detect the clamping frame in the lifting process of the clamping frame. The detection unit comprises at least one sensor. Sensors include, but are not limited to, stoppers, infrared sensors, laser sensors, ultrasonic sensors. In fact, according to the requirement of controlling the position of the clamping frame, the position of the detection point is manually set as the set position of the clamping frame, when the control system determines to adjust the voltage of the cell after analyzing and comparing the voltage of the measured cell and the voltage of the set cell, a standard position is provided for the control system to compare and analyze the states of the measured position and the set position of the clamping frame, and the control system can conveniently determine to execute the instruction of adjusting the voltage of the cell and the position of the clamping frame by the anode lifting mechanism or the first pressing mechanism.
The aluminum tube clamping device comprises a clamping frame, wherein a plurality of rib plates which are in contact with the aluminum tube are arranged around the aluminum tube in the clamping frame, the rib plates are positioned on the side part of the first pressing mechanism or penetrate through the first pressing mechanism, the rib plates are made of metal or metal alloy which has good electric conductivity and can be melted in liquid electrolyte, at least one electric conduction element is arranged on each corresponding rib plate, at least one third pressing mechanism which presses the electric conduction element on the rib plate is arranged on the electric conduction element, and the electric conduction element is connected with an anode bus which is positioned around the clamping frame.
Or the aluminum cylinder is directly connected with a plurality of conductive elements, and the conductive elements are connected with an anode bus positioned around the clamping frame; the current on the anode bus bar is directly conducted to the aluminum cylinder.
The invention provides a new path for current to flow to the aluminum cylinder through the anode bus bar and the rib plate (or not through the rib plate), namely a path for current to be conducted to the aluminum cylinder, and the new path is taken as a current path of the invention. Along with the continuous consumption and the decline of aluminium section of thick bamboo positive pole, the gusset on the aluminium section of thick bamboo also descends and consumes or tears down thereupon, and in this process, the conductive element on the gusset upwards moves along the gusset to drive the third hold-down mechanism on the conductive element upwards to move, or adopt manual work or through control system's mode to promote the conductive element on the aluminium section of thick bamboo to the assigned position. The third pressing mechanism includes, but is not limited to, a screw pressing mechanism, a conical pressing mechanism, a cam pressing mechanism, a spring pressing mechanism, a telescopic cylinder pressing mechanism, or any combination thereof. The pressing mechanism can be connected with the driver and the control system, and automatic locking and unlocking of the rib plates by the pressing mechanism are achieved. The rib plate and the aluminum cylinder are connected by means of welding, riveting, joggling, thread connection or pouring.
Furthermore, the clamping frame comprises a first clamping frame and a second clamping frame which are arranged from top to bottom, and the anode lifting mechanism is connected with the first clamping frame or the second clamping frame; the first clamping frame and the second clamping frame are provided with a plurality of pressing and lifting mechanisms, one end of each pressing and lifting mechanism is connected with the first clamping frame, the other end of each pressing and lifting mechanism is connected with the second clamping frame, a plurality of first pressing mechanisms in contact with the aluminum cylinder or the rib plate or the aluminum cylinder and the rib plate are arranged on the first clamping frame and the second clamping frame, and the first clamping frame and the second clamping frame are provided with corresponding lifting methods:
1) the first clamping frame is lifted to a specified position according to a set distance by upwards extending the press-lifting mechanism;
2) the second clamping frame is lifted to a specified position by retracting and resetting the pressure lifting mechanism.
Furthermore, at least one detection unit is arranged around the clamping frame, the detection unit, the anode lifting mechanism, the first pressing mechanism and the press lifting mechanism are all connected with the control system, and when the second clamping frame is located in the position of the detection point and in the area below the detection point, the clamping frame starts to be lifted independently through the control system under the condition that the voltage of the stabilizing tank is not changed.
The detection point position refers to the position where the detection unit starts to sense and detect the clamping frame in the lifting process of the clamping frame. The detection point position is artificially set according to the requirement of controlling the position of the clamping frame and is used as the set position of the clamping frame, so that a standard position is provided for the control system to compare and analyze the conditions of the actually measured position and the set position of the clamping frame, and the control system can conveniently determine whether to send an instruction for lifting the clamping frame. The detection unit comprises at least one sensor. Sensors include, but are not limited to, stoppers, infrared sensors, laser sensors, ultrasonic sensors.
The clamping frame or the first clamping frame or the second clamping frame is an anode bus frame which is a conventional device in the aluminum industry, is connected with an anode lifting mechanism, plays a role in clamping and lifting an anode and conducts electricity, generally comprises two anode buses, and two ends or the middle electricity inlet point or two ends and the middle electricity inlet point of the anode bus are welded by an aluminum plate in an overlapping mode or are connected together by connecting buses through threads to form a bus frame.
The clamping frame of the present invention may also be the first and second clamping frames (as the second clamping frame structure) which are separated from each other, different from the single clamping frame (the first clamping frame structure) disclosed. Along with the production process goes on, the centre gripping frame is more and more close with the covering material on electrolysis trough surface, when second centre gripping frame is located the detection point position and following region, control system sends the instruction, under the unchangeable circumstances of stable trough voltage, begins to promote the centre gripping frame alone:
when the first clamping frame is connected with the anode lifting mechanism, the anode lifting mechanism connected with the first clamping frame and the press lifting mechanism on the clamping frame are started, the first clamping frame is lifted to a specified position according to a set distance, then the press lifting mechanism on the clamping frame is started and retracted to reset, and the second clamping frame is lifted until the specified position; or when the second clamping frame is connected with the anode lifting mechanism, the control system starts the press lifting mechanism on the clamping frame to lift the first clamping frame to the designated position according to the set distance, then starts the anode lifting mechanism connected with the second clamping frame, and simultaneously enables the press lifting mechanism on the clamping frame to be retracted and reset to lift the second clamping frame to the designated position. By repeating the above operations, the position of the holding frame is maintained within the height range required by the process, so that the electrolytic cell can be continuously operated. The first pressing mechanism comprises but is not limited to a screw mechanism, a conical pressing mechanism, a cam pressing mechanism, a spring pressing mechanism, a telescopic cylinder pressing mechanism, a wheel type clamp, a clamp or any combination of the above mechanisms, and the automatic unlocking and the loosening of the aluminum cylinder and the anode guide rod by the pressing mechanism are realized through a control system.
The pressing and lifting mechanism comprises but is not limited to a telescopic cylinder and a lead screw mechanism which can be lifted or lowered or any combination of the telescopic cylinder and the lead screw mechanism, and the telescopic cylinder and the lead screw mechanism can be connected with a control system to realize automatic lifting of the first clamping frame and the second clamping frame.
In the process of lifting the clamping frame, the height of the anode of the aluminum cylinder is stable and unchanged, the anode does not move, and the voltage of the tank is stable and unchanged; when the second clamping frame is located in the area above the detection point, the first clamping frame and the second clamping frame are directly lifted through the anode lifting mechanism, the anode of the aluminum cylinder is lifted along with the clamping frames, and the voltage of the tank is lifted along with the lifting of the clamping frames.
The control system refers to, but is not limited to, a computer control system and a cell controller.
The wheel holder is described in chinese patent application No. 201711220109.6; the holder is described in the chinese patent application No. 201810158781.5.
For the first and second clamping frame structures, a plurality of anode guide rods which are vertically placed and can be replaced are also arranged around the aluminum cylinder in the clamping frame, the anode guide rods are positioned at the upper part or the side part of the first pressing mechanism or penetrate through the first pressing mechanism, and a plurality of second pressing mechanisms which are contacted with the anode guide rods are also arranged on the clamping frame.
The anode guide rod is connected with the aluminum cylinder and the anode bus bar, which is a conductive path disclosed in the field and is a more mature conductive mode as another conductive path of the invention. For a single clamping frame, the second pressing mechanism is arranged on the clamping frame; for the second clamping frame structure, the first pressing mechanism contacting the aluminum cylinder or the second pressing mechanism contacting the anode guide rod is mounted on the clamping frame, including but not limited to, the top, inner side, bottom of the clamping frame and the proper position between the first clamping frame and the second clamping frame. The second pressing mechanism comprises but is not limited to a screw mechanism, a conical pressing mechanism, a cam pressing mechanism, a spring pressing mechanism, a telescopic cylinder pressing mechanism, a wheel type clamp, a clamp or any combination of the above mechanisms, and the automatic unlocking and the loosening of the aluminum cylinder and the anode guide rod by the pressing mechanism are realized through a control system.
Be provided with insulation material on the second centre gripping frame, include to set up insulation material on the inner wall of second centre gripping frame and outer wall, the outer wall includes lower surface, lateral surface, medial surface and the terminal surface of second centre gripping frame, reduces the operating temperature of second centre gripping frame.
Aiming at the two clamping frame structures, at least one reinforcing part is arranged between two adjacent aluminum cylinders in the clamping frame, two ends of the reinforcing part are connected to the clamping frame, a heat exchange conduit is arranged in the reinforcing part, a cooling medium passes through the heat exchange conduit, and at least one baffle, or a plurality of baffle plates, or at least one baffle and a plurality of baffle plates which are in contact with the aluminum cylinders are further arranged on the reinforcing part.
At least one baffle plate, or a plurality of baffle plates, or at least one baffle plate and a plurality of baffle plates which are contacted with the aluminum cylinder are arranged around the aluminum cylinder.
And a plurality of gas collecting ports and gas exhaust ports are arranged on the clamping frame, a plurality of gas collecting cover plates or gas collecting heat preservation cover plates are arranged between the outer side or the upper side or the lower side of the clamping frame and the cathode, and the gas collecting cover plates or the gas collecting heat preservation cover plates collect and organize the discharged electrolytic waste gas, so that the pollution and the heat dissipation of the electrolytic bath are reduced.
For the two clamping frame structures, the space between the aluminum cylinder and the conductor is added with a filler, and the filler is made of carbon materials or comprises raw materials, the carbon materials and an adhesive. The conductor in the anode of the aluminium cylinder is made of a metal or metal alloy which conducts electricity and heat well and is meltable in the liquid electrolyte, and the conductor remains in the aluminium cylinder until the filler or aluminium cylinder in contact with the conductor begins to disappear or melt. The current on the anode bus bar flows into the anode guide rod or the rib plate, the aluminum cylinder, the conductor and the sintered body through the conductive element and is conducted to the liquid electrolyte.
To aforementioned two kinds of centre gripping frame structures, be provided with at least one inner tube in the aluminium section of thick bamboo at conductor top, play the effect of inside support to an aluminium section of thick bamboo, prevent that an aluminium section of thick bamboo warp.
The first pressing mechanism, the second pressing mechanism and the third pressing mechanism play basically the same roles, and only the types, the models, the installation positions, the applied pressures and the types and the pressing objects are different.
The invention has the advantages that:
1) make full use of and played the positive effect of positive pole hoist mechanism and wheeled holder or holder in control tank voltage and centre gripping frame position two aspects, control tank voltage and centre gripping frame position are easier and accurate, the automation of centre gripping frame position control has been realized, further improve tank voltage control's mechanization and automation level, keep the centre gripping frame in predetermineeing highly simultaneously, reduce the number of times and the single stroke that the centre gripping frame reciprocated by a wide margin, save all operations that promote centre gripping frame and positive pole guide arm alone, be favorable to keeping electrolysis trough and trough voltage stable, realize the operation unmanned.
2) The upper portion is provided with the inner tube in the aluminium section of thick bamboo, is provided with baffle or separation blade on the reinforcement, is provided with baffle, separation blade around the aluminium section of thick bamboo, prevents that the aluminium section of thick bamboo of here warp, keeps aluminium section of thick bamboo stable in shape, is favorable to the connection of an upper and lower aluminium section of thick bamboo and promotes the operation of centre gripping frame, promotes the accurate control of tank voltage.
3) Ribs are arranged around the aluminum cylinder, so that current on the anode bus can flow into the aluminum cylinder smoothly, and the third pressing mechanism firmly presses the conductive element on the ribs to bear partial weight of the anode, thereby being beneficial to avoiding the possibility of anode sliding.
4) The conductive element is directly connected to the aluminum cylinder, so that the distance for conducting the current on the anode bus bar to the liquid electrolyte is shortened, and the anode voltage drop is reduced.
5) The gas collection heat preservation cover plate and the aluminum cylinder anode jointly seal electrolytic flue gas, the gas collection efficiency is high, the flue gas treatment amount is small, the working environment temperature of the clamping frame is reduced on the premise of reducing pollution and heat dissipation of the electrolytic cell, and normal operation of the clamping frame is facilitated.
6) The aluminum cylinder hermetically seals asphalt smoke generated by the anode in the anode and carries out thermal cracking, so that the harm is changed into treasure, the performance of the anode is improved, and the aluminum cylinder is environment-friendly and energy-saving.
7) When the second type of clamping frame is adopted, the mechanical and automatic degree of the lifting operation of the clamping frame is high, all auxiliary equipment is saved, the lifting is stable and efficient, and in the lifting process of the clamping frame, the position of the anode of the aluminum cylinder is unchanged, and the voltage of the cell is stable.
8) The clamping frame can firmly clamp the anode of the aluminum cylinder and the anode guide rod through the pressing mechanism on the clamping frame, so that the anode is kept at the height position required by the process, and the voltage of the cell is stable.
9) After the heat insulation material is used, the working temperature of the clamping frame is low, the normal work of the clamping frame is facilitated, the maintenance amount is reduced, and the service life is prolonged.
Drawings
Fig. 1 is a schematic side view of a first clamping frame.
Fig. 2 is a schematic top view of the structure of fig. 1.
FIG. 3 is a schematic side view of a second clamping frame.
Fig. 4 is a schematic side view of the conductive element position.
1-an aluminum cylinder, 2-an anode guide rod, 3-a clamping frame, 4-a first pressing mechanism, 5-a second pressing mechanism, 6-an anode lifting mechanism, 7-an inner cylinder, 8-a detection unit, 9-a control system, 10-a filler, 11-a conductor, 12-a rib plate, 13-a conductive element, 14-a third pressing mechanism, 15-a reinforcing piece, 16-a baffle plate, 17-a baffle plate, 18-a heat exchange conduit, 19-a pressing and lifting mechanism and 20-a heat insulation material;
31-a first clamping frame, 32-a second clamping frame.
Detailed Description
See fig. 1 and 2, be provided with at least one aluminium section of thick bamboo positive pole in the centre gripping frame, aluminium section of thick bamboo positive pole includes aluminium section of thick bamboo 1, be provided with a plurality of conductors 11 with aluminium section of thick bamboo contact in the aluminium section of thick bamboo, be provided with at least one inner tube 7 in the aluminium section of thick bamboo at conductor top, centre gripping frame 3 is connected with the positive pole hoist mechanism 6 of at least one adjustment tank voltage, secondly be provided with the first hold-down mechanism 4 of a plurality of with built-in conductor aluminium section of thick bamboo contact on the centre gripping frame, be provided with at least one detecting element 8 around the centre gripping frame simultaneously, detecting element, first hold-down mechanism and positive.
The detection unit comprises at least one sensor. Sensors include, but are not limited to, stoppers, infrared sensors, laser sensors, ultrasonic sensors. The first pressing mechanism is a wheel type clamp or a clamp.
When the clamping frame is located in the area above the detection point, the voltage of the lifting groove and the position work of the clamping frame are completed as follows: the anode lifting mechanism 6 is started through the control system, the anode, the clamping frame 3, the anode guide rod 2, the second pressing mechanism 5 and the wheel type clamp or the clamp are synchronously lifted, the operation of the anode lifting mechanism is stopped until the cell voltage and the position of the clamping frame reach the specified range of the process, and the clamping frame clamps and fixes the anode and the anode guide rod and lifts the anode through the action of the wheel type clamp or the clamp and the second pressing mechanism in the process.
When the clamping frame is positioned at the detection point and in the following area, the work of increasing the voltage of the groove and the position of the clamping frame is completed as follows: starting an anode lifting mechanism through a control system, synchronously lifting the anode, the clamping frame, the anode guide rod, the second pressing mechanism and the wheel type clamp or the clamp, and stopping the operation of the anode lifting mechanism until the tank voltage and the position of the clamping frame reach the process specified range; the work of descending the anode and maintaining the position of the clamping frame to be stable is completed as follows: the wheel type clamp or the clamp is started by the control system, the anode is lowered to a specified position, and the wheel type clamp or the clamp is stopped to run after the bath voltage reaches a process specified range. In the process, the heights of the clamping frame, the anode guide rod and the second pressing mechanism 5 and the wheel type clamp or the clamp are unchanged, and the descending speed and the descending amplitude of the anode are controlled according to the process requirements while the anode is clamped by the wheel type clamp or the clamp and the second pressing mechanism.
The detection point position refers to the position where the detection unit starts to sense and detect the clamping frame in the lifting process of the clamping frame. The vertical distance between the position of the detection point and a certain position of the electrolytic bath is kept unchanged in the process of lifting the anode. By a location of the cell is meant a cell edge plate upper surface, a cell superstructure lower surface, a cell superstructure point, a column stand point, an anode busbar upper surface, and the like including, but not limited to, the cell. Referring to fig. 2, at least one reinforcing member 15 is arranged between two adjacent aluminum cylinders in the clamping frame, two ends of the reinforcing member are connected to the clamping frame, a heat exchange conduit 18 is arranged in the reinforcing member, and a cooling medium passes through the heat exchange conduit to stabilize the strength of the reinforcing member; the reinforcing member is also provided with a plurality of baffles 17 or baffle plates 16 which are contacted with the aluminum cylinder to keep the shape of the aluminum cylinder at the position stable.
Or as shown in fig. 1 or 3, a plurality of anode rods 2 vertically arranged are arranged around the aluminum cylinder in the clamping frame, and are positioned at the upper part or the side part of the first pressing mechanism or penetrate through the first pressing mechanism 4, and a plurality of second pressing mechanisms 5 contacted with the anode rods are arranged on the clamping frame.
As shown in fig. 2, a filler 10 is added to the space between the aluminum cylinder and the conductor. The conductor in the anode of the aluminium cylinder is made of metal or metal alloy which has good electric and heat conducting properties and can be melted in the liquid electrolyte, and the conductor is kept in the aluminium cylinder until the filler or the aluminium cylinder which is in contact with the conductor begins to disappear or melt. The current on the anode bus bar flows into the anode guide rod or rib plate 12, the aluminum cylinder 1, the conductor 11, the sintered body and the liquid electrolyte through the conductive element.
The clamping frame is provided with a plurality of air collecting ports and air exhaust ports, and the outer side or the upper side or the lower side of the clamping frame is provided with a plurality of air collecting cover plates or air collecting heat preservation cover plates.
At least one baffle 17, or a plurality of baffle plates 16, or at least one baffle plate and a plurality of baffle plates, which are contacted with the aluminum cylinder, are also arranged around the aluminum cylinder, see fig. 2.
See fig. 3, make first centre gripping frame 31 and second centre gripping frame 32, set up a plurality of between first centre gripping frame and the second centre gripping frame and press and carry mechanism 19, press and carry the one end of mechanism and connect first centre gripping frame, the other end is connected the second centre gripping frame, and be provided with at least one aluminium section of thick bamboo positive pole in first centre gripping frame and the second centre gripping frame, aluminium section of thick bamboo positive pole includes an aluminium section of thick bamboo, be provided with a plurality of conductors with an aluminium section of thick bamboo contact in the aluminium section of thick bamboo, be provided with at least one inner tube 7 in the aluminium section of thick bamboo at conductor top to guarantee that aluminium section of thick bamboo upper portion shape is. Still be provided with at least one baffle, or a plurality of separation blade, or at least one baffle and a plurality of separation blade with aluminium section of thick bamboo contact around the aluminium section of thick bamboo, still be provided with a plurality of baffle or separation blade with aluminium section of thick bamboo contact on the reinforcement between the aluminium section of thick bamboo, be provided with the first hold-down mechanism of a plurality of with aluminium section of thick bamboo or gusset contact on first centre gripping frame and the second centre gripping frame, be provided with at least one crust breaking unloading exhaust mechanism or crust breaking exhaust mechanism around the aluminium section of thick bamboo. And the second clamping frame is provided with a heat insulation material.
Further, the first clamping frame is an anode bus frame.
As shown in fig. 3, at least one detection unit is arranged around the clamping frame, and the detection unit 8, the anode lifting mechanism 6, the first pressing mechanism and the press lifting mechanism are all connected with the control system. The detection unit at least comprises one sensor, and the sensor comprises but is not limited to a stopper, an infrared sensor, a laser sensor and an ultrasonic sensor.
As shown in fig. 2 or 4, a plurality of rib plates 12 contacting with the aluminum cylinder 1 are arranged around the aluminum cylinder, the rib plates are located at the side parts of the first pressing mechanisms, the rib plates are made of metal or metal alloy which has good electric conductivity and can be melted in liquid electrolyte, at least one electric conduction element 13 is arranged on each corresponding rib plate, at least one third pressing mechanism 14 for pressing the electric conduction element on the rib plate is arranged on the electric conduction element, and the electric conduction element is connected with an anode bus located around the clamping frame; or the aluminum cylinder is directly connected with a plurality of conductive elements, the conductive elements are connected with an anode bus positioned around the clamping frame, and the current on the anode bus is directly conducted to the aluminum cylinder.
Along with the continuous consumption and descending of the anode of the aluminum cylinder, the rib plates 12 on the aluminum cylinder are also descended, consumed or detached along with the anode, and in the process, the conductive elements on the rib plates move upwards to the designated positions along the rib plates and drive the third pressing mechanisms 14 on the conductive elements to move upwards to the designated positions, or the conductive elements on the aluminum cylinder are lifted to the designated positions manually or in a control system mode.
Or a plurality of anode guide rods which are vertically arranged and can be replaced are also arranged around the aluminum cylinder in the clamping frame, are positioned at the upper part or the side part of the first pressing mechanism or penetrate through the first pressing mechanism, and a plurality of second pressing mechanisms which are contacted with the anode guide rods are also arranged on the clamping frame.
In the specific implementation process, 1) according to the requirements of the capacity of the electrolytic cell, the structures of the anode lifting mechanism and the pressing mechanism, clamping, fastening and hoisting the anode of the aluminum cylinder and the anode guide rod, tight contact between the anode guide rod and the anode of the aluminum cylinder, simple and convenient installation, maintenance and operation and the number of the anodes of the aluminum cylinder, the material, the number, the size, the shape and the structure of the clamping frame, the arrangement mode in the electrolytic cell and the mode of clamping and fastening the anode of the aluminum cylinder and the anode guide rod are set, for example, the clamping frame is convenient to install and disassemble around the anode of the aluminum cylinder, and the clamping frame is set into a detachable structure; 2) according to the requirements of electric conduction, heat conduction, exhaust and completeness and integrity of the aluminum cylinder anode, on the premise of ensuring the product quality, setting the arrangement mode and the position of conductors in the aluminum cylinder anode, and determining the number, the size, the shape, the corresponding material and the manufacturing method of the conductors arranged in the aluminum cylinder, if the cross section of the conductors is of a profile structure; 3) according to the complete and intact aluminum cylinder, the filler and waste gas generated by the filler can be continuously sealed, the shape of the anode is kept to be continuous and stable, the current smoothly enters a conductor through the aluminum cylinder, the upper aluminum cylinder and the lower aluminum cylinder are connected, the sealing is good, an anode guide rod is convenient to be in close contact with the aluminum cylinder, a pressing mechanism is convenient to clamp the anode of the aluminum cylinder, and the requirements of the mounting position of a crust breaking, blanking and exhaust device and the anode of the aluminum cylinder are met, the shape, the structure, the size, the number of layers, the wall thickness, the number and the manufacturing method of the aluminum cylinder are set, for example, the section of the aluminum cylinder is of a; 4) selecting the type, model, stroke, installation position, installation mode and quantity of a press lifting mechanism between the first clamping frame and the second clamping frame according to the weight of the aluminum cylinder anode, the upward moving distance of the first clamping frame, the structure and size of the clamping frame, the high automation degree, stability and high efficiency of the lifting of the clamping frame, the simplicity and convenience in installation and replacement and the requirements of the ascending stroke of the conductive element; 5) according to the shape and the structure of an aluminum cylinder anode and an anode guide rod which are clamped and fastened and are hoisted, the shape and the structure of a clamping frame, the temperature distribution of the aluminum cylinder and the height of an anode sintered body, the shape and the structure of the aluminum cylinder, the automation degree of the operation of the clamping frame is favorably improved, the stability and the efficiency are high, the anode current is not influenced to be smoothly led into the anode, the installation and the replacement are simple and convenient, the conductive element is ensured to be in close contact with a rib plate, and the conductive element can slide on the rib plate, the requirements on the shape, the structure and the size of the rib plate are met, the type, the model, the installation position, the installation mode and the number of a pressing mechanism and the shape and the structure of a contact part; 6) the installation position, material, structure, quantity, size and operation or control mode of the gas-collecting heat-preserving cover plate are set according to the requirements of high and stable gas-collecting efficiency, less heat dissipation, capability of protecting the clamping frame and convenient operation of the electrolytic bath. 7) According to the requirements of continuously, stably and uniformly transmitting the current on the anode bus to the anode of the aluminum cylinder, the structure of the third pressing mechanism, the product quality, the convenience and simplicity for lifting the third pressing mechanism and the conductive element and the easiness for installing and replacing the anode guide rod and the conductive element, the materials, the sizes, the shapes, the quantities, the structures and the installation positions of the anode guide rod, the rib plates and the conductive element, and the connection mode of the conductive element, the rib plates and the aluminum cylinder are set; 8) determining the mounting position, the number and the structure of the crust breaking blanking exhaust mechanism or the crust breaking exhaust mechanism around the aluminum cylinder according to the capacity of the electrolytic cell, the number and the size of the anodes of the aluminum cylinder, the boiling state of electrolyte, smooth blanking exhaust and the requirement that the anodes of the aluminum cylinder and the process operation are not influenced; 9) selecting the material of the heat-insulating material and the position and the mode of fixing the heat-insulating material on the second clamping frame according to the requirement, the structure and the shape of the working temperature of the second clamping frame and the flow rate and the temperature of the electrolytic waste gas; 10) according to the specific position and the smoke quantity of the smoke discharged by the electrolytic cell, the positions, the sizes, the number, the structures and the exhaust quantities of the gas collecting ports and the exhaust ports are arranged on the first clamping frame and the second clamping frame; 11) selecting a material of the reinforcing member according to the strength requirement on the clamping frame, the size and the shape of the aluminum cylinder and the working environment, setting the size, the number, the structure, the shape and the mounting position of the reinforcing member and the connecting mode of the reinforcing member and the clamping frame, for example, setting the connecting mode of the reinforcing member and the clamping frame as a detachable fixed mode, wherein the mounting and the dismounting of the reinforcing member around the anode of the aluminum cylinder are convenient; 12) selecting the material of the inner barrel and the size, shape, structure and quantity of the inner barrel according to the size of the upper part in the aluminum barrel, and meeting the requirements that the upper part of the aluminum barrel is not deformed, the operation is convenient and the upper part of the aluminum barrel is sealed; 13) according to the requirements of space between the clamping frame and the aluminum cylinder, stable shape of the aluminum cylinder and insulation of the upper structure of the electrolytic cell and the anode of the aluminum cylinder, the materials of the baffle plate and the baffle plate are selected, and the size, the shape, the structure, the number, the installation position and the fixing mode of the baffle plate and the baffle plate are set. 14) Setting the installation position and the detection point position of a detection unit according to a plurality of factors of the electrolysis temperature of the electrolytic bath, the height of an anode sintered body, the surface temperature of the aluminum cylinder, the working environment temperature of a clamping frame, the height of the clamping frame and the stroke of an anode lifting mechanism; 15) according to the structure, shape, material, lifting speed, amplitude and position of the clamping frame, the type, model and number of the detection units and the connection mode with the control system are selected, and the type, model and number of the sensors and the connection mode and position of the detection units are selected.

Claims (10)

1. A method for controlling the cell voltage of an electrolytic cell and the position of a clamping frame, the device comprises the clamping frame and at least one anode lifting mechanism connected with the clamping frame and used for adjusting the cell voltage and the position of the clamping frame; still including setting up the aluminium section of thick bamboo positive pole of a plurality of conductors of at least one built-in centre gripping frame, its characterized in that: the aluminum cylinder anode comprises an aluminum cylinder, and a plurality of first pressing mechanisms in contact with the aluminum cylinder are arranged on the clamping frame; at least one detection unit is arranged around the clamping frame, and the tank voltage signal acquisition end is connected with a control system; the detection unit, the first pressing mechanism and the anode lifting mechanism are all connected with the control system;
when the cell voltage and the position of the clamping frame need to be adjusted, the method comprises the following steps:
1) when the clamping frame is positioned in the area above the detection point, the cell voltage and the clamping frame position are adjusted by the anode lifting mechanism through the control system;
2) when the clamping frame is positioned in the detection point position and the area below the detection point position, the groove voltage and the clamping frame position are lifted by the anode lifting mechanism through the control system; the voltage of the tank is reduced and the position of the clamping frame is kept stable through the control system, and the first pressing mechanism is used for executing the voltage reduction of the tank and keeping the position of the clamping frame stable.
2. The method for controlling the cell voltage and the position of the clamping frame of claim 1, wherein the position of the detection point is the position where the detection unit starts to sense the clamping frame during the lifting and lowering of the clamping frame; the detection unit comprises at least one sensor.
3. The method for controlling the cell voltage of the electrolytic cell and the position of the clamping frame according to claim 1, wherein a plurality of rib plates in contact with the aluminum cylinder are arranged around the aluminum cylinder in the clamping frame, the rib plates are positioned at the side part of the first pressing mechanism or penetrate through the first pressing mechanism, at least one conductive element is arranged on each corresponding rib plate, at least one third pressing mechanism for pressing the conductive element on the rib plates is arranged on the conductive element, and the conductive element is connected with an anode bus positioned around the clamping frame;
or the aluminum cylinder is directly connected with a plurality of conductive elements, and the conductive elements are connected with an anode bus positioned around the clamping frame; the current on the anode bus bar is directly conducted to the aluminum cylinder.
4. The method of claim 1, wherein the clamping frame comprises a first clamping frame and a second clamping frame arranged from top to bottom, and the anode lifting mechanism is connected with the first clamping frame or the second clamping frame; a plurality of press-lifting mechanisms are arranged between the first clamping frame and the second clamping frame, one end of each press-lifting mechanism is connected with the first clamping frame, the other end of each press-lifting mechanism is connected with the second clamping frame, and a plurality of first pressing mechanisms in contact with the aluminum cylinder are arranged on the first clamping frame and the second clamping frame; the first clamping frame and the second clamping frame are lifted correspondingly:
1) the first clamping frame is lifted to a specified position according to a set distance by upwards extending the press-lifting mechanism;
2) the second clamping frame is lifted to a specified position by retracting and resetting the pressure lifting mechanism.
5. A method for controlling cell voltage and the position of the clamping frame according to claim 3, wherein the clamping frame comprises a first clamping frame and a second clamping frame arranged from top to bottom, the anode lifting mechanism is connected with the first clamping frame or the second clamping frame; a plurality of press-lifting mechanisms are arranged between the first clamping frame and the second clamping frame, one end of each press-lifting mechanism is connected with the first clamping frame, the other end of each press-lifting mechanism is connected with the second clamping frame, and a plurality of first pressing mechanisms which are in contact with the aluminum cylinder or the rib plate or the aluminum cylinder and the rib plate are arranged on the first clamping frame and the second clamping frame; the first clamping frame and the second clamping frame are lifted correspondingly:
1) the first clamping frame is lifted to a specified position according to a set distance by upwards extending the press-lifting mechanism;
2) the second clamping frame is lifted to a specified position by retracting and resetting the pressure lifting mechanism.
6. A method for controlling the cell voltage of an electrolytic cell and the position of a clamping frame according to claim 5, characterized in that the pressure raising means are connected to the control system, by means of which the separate raising of the clamping frame is started with a stable cell voltage when the second clamping frame is located at the location of the detection point and below.
7. The method for controlling the cell voltage and the position of the clamping frame of claim 6, wherein the position of the detection point is the position where the detection unit starts to sense the clamping frame during the lifting process of the clamping frame; the first clamping frame or the second clamping frame refers to an anode bus frame.
8. A method for controlling cell voltage and the position of the clamping frame of an electrolytic cell according to any of claims 1 to 7, wherein the first pressing mechanism is a wheel type clamp or a clamp.
9. A method for controlling the cell voltage and the position of the clamping frame of the electrolytic cell according to any one of claims 1 to 7, characterized in that a plurality of vertically-arranged replaceable anode rods are further arranged around the aluminum cylinder in the clamping frame, the anode rods are positioned at the upper part or the side part of the first pressing mechanism or penetrate through the first pressing mechanism, and a plurality of second pressing mechanisms in contact with the anode rods are further arranged on the clamping frame; at least one reinforcing part is arranged between two adjacent aluminum cylinders in the clamping frame, two ends of the reinforcing part are connected to the clamping frame, a heat exchange conduit is arranged in the reinforcing part, a cooling medium passes through the heat exchange conduit, and at least one baffle, or a plurality of blocking pieces, or at least one baffle and a plurality of blocking pieces which are in contact with the aluminum cylinders are further arranged on the reinforcing part.
10. A method for controlling the cell voltage and the position of the clamping frame of an electrolytic cell according to any one of claims 1 to 7, characterized in that at least one baffle plate, or a plurality of baffle plates, or at least one baffle plate and a plurality of baffle plates, which are in contact with the aluminum cylinder, are arranged around the aluminum cylinder; at least one inner cylinder is arranged in the aluminum cylinder at the top of the conductor; at least one crust breaking discharging exhaust mechanism or crust breaking exhaust mechanism is arranged around the aluminum cylinder.
CN201811540598.8A 2018-12-17 2018-12-17 Method for controlling electrolytic bath voltage and clamping frame position Active CN109280939B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811540598.8A CN109280939B (en) 2018-12-17 2018-12-17 Method for controlling electrolytic bath voltage and clamping frame position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811540598.8A CN109280939B (en) 2018-12-17 2018-12-17 Method for controlling electrolytic bath voltage and clamping frame position

Publications (2)

Publication Number Publication Date
CN109280939A CN109280939A (en) 2019-01-29
CN109280939B true CN109280939B (en) 2020-09-25

Family

ID=65173992

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811540598.8A Active CN109280939B (en) 2018-12-17 2018-12-17 Method for controlling electrolytic bath voltage and clamping frame position

Country Status (1)

Country Link
CN (1) CN109280939B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110257894A (en) * 2019-06-04 2019-09-20 邵阳学院 The unleaded aluminium foil for electrolytic capacitor of mesohigh corrodes feeder equipment
CN110158119A (en) * 2019-07-10 2019-08-23 党星培 A kind of device and method that control aluminum cell anode guide rod moves up and down

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410403A (en) * 1980-06-17 1983-10-18 Aluminum Company Of America Electrolysis method
DE4118304A1 (en) * 1991-06-04 1992-12-24 Vaw Ver Aluminium Werke Ag ELECTROLYSIS CELL FOR ALUMINUM EFFICIENCY
US5279715A (en) * 1991-09-17 1994-01-18 Aluminum Company Of America Process and apparatus for low temperature electrolysis of oxides
CN106894055B (en) * 2016-12-30 2018-07-17 山西精之铝科技有限公司 The continuous aluminium frame anode aluminium cell of built-in conductor
CN107858707B (en) * 2017-08-10 2019-11-08 山西精之铝科技有限公司 A kind of mold roasting method of aluminium frame anode
CN107858706A (en) * 2017-08-10 2018-03-30 山西精之铝科技有限公司 A kind of aluminium frame anode for changing anode current circuit
CN108070879B (en) * 2017-11-29 2019-08-02 石文科 A kind of gripper frame of aluminium cell
CN108285087B (en) * 2018-02-26 2019-07-12 党星培 A kind of clamping holding device of aluminium cell

Also Published As

Publication number Publication date
CN109280939A (en) 2019-01-29

Similar Documents

Publication Publication Date Title
CN109280939B (en) Method for controlling electrolytic bath voltage and clamping frame position
RU2706269C1 (en) Aluminum electrolytic cell with continuous anode in aluminum frame with built-in conductors
CN85103452A (en) The process and the device of the automatic reinforced suction effect of using on the aluminium cell
CN101280435A (en) 400kA level energy-saving emission-reduced prebaking aluminum cell
RU2041975C1 (en) Electrolyzer for obtaining of aluminium and method for producing aluminium by means of electrolyzer
CN101851765B (en) Energy saving and environmental protection aluminium cell with self-baking anode
CN106676580A (en) On-line anode connecting method and structure for prebaked anode aluminium electrolysis
CN201634783U (en) Zone control system for aluminum electrolysis cell
CN208151493U (en) A kind of heat insulating block for prebaked cell for aluminum-reduction
CN205077157U (en) Heat preservation type prebaked anode aluminum electrolytic cell
CN206089840U (en) Prebaked anode aluminium electroloysis steel claw
US5108557A (en) Ore point feeder and method for soderberg aluminum reduction cells
CN205077156U (en) Big face groove cover of prebaked anode aluminum electrolytic cell
CN201962387U (en) Anode effect predicting device for aluminum electrolytic cell
CN203613277U (en) Aluminum electrolysis cell with center seam striker plate
CN201713581U (en) Energy-saving environment-friendly self-baking anode aluminum electrolytic cell
CN213624411U (en) Aluminum electrolysis cell capable of automatically monitoring electrolyte temperature
CN206089841U (en) Pendant is assisted to positive pole charcoal piece
CN207426064U (en) A kind of device for separating AGM partition plate acid solutions
CN200971387Y (en) Up type pressure-disengaging machine for residual anode
CN103695962B (en) A kind of copper electrolysis anode gravimetric analysis sensing method and device thereof
CN202226935U (en) Scraping device for incrustation of hammer head for crust breaking of prebaked aluminum electrolysis bath
CN210648443U (en) Tin metallurgy electrolysis anode casting device
CN212822625U (en) Steel-making process sample handle cutting machine
CN209082010U (en) A kind of de- pole automatic fishing device of aluminium electroloysis carbon block

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant