CN106947981B - Alumina crust breaking and feeding device - Google Patents
Alumina crust breaking and feeding device Download PDFInfo
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- CN106947981B CN106947981B CN201710292159.9A CN201710292159A CN106947981B CN 106947981 B CN106947981 B CN 106947981B CN 201710292159 A CN201710292159 A CN 201710292159A CN 106947981 B CN106947981 B CN 106947981B
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- guide pipe
- crust breaking
- crust
- hammer head
- alumina
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/14—Devices for feeding or crust breaking
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/20—Automatic control or regulation of cells
Abstract
The utility model provides an aluminium oxide feeding device that crust breaking, characterized by: two lifting driving devices are additionally arranged on the aluminum electrolytic cell, so that the lower dead point of the movement of the crust-breaking hammer head and the working height of the guide pipe of the crust-breaking hammer head can be adjusted according to the two horizontally-changed process conditions of the aluminum electrolytic cell, and alumina powder is vertically fed through the upper part of a 'feed opening fire hole' instead of the lateral end of the 'feed opening fire hole'; therefore, the phenomenon of blocking of a fire hole at a feed opening is avoided, and the phenomenon of bonding a long bag by the crust breaking hammer is avoided. But also can prolong the service life of the crust breaking hammer head and reduce the maintenance workload of the crust breaking cylinder. Therefore, the maintenance workload of aluminum electrolysis is reduced, the external manual interference of the aluminum electrolysis cell can be reduced, and the maintenance-free unattended operation of the aluminum electrolysis cell is realized.
Description
The technical field is as follows: an alumina crust breaking and feeding device is mainly applied to the structural design of a pre-baked aluminum electrolytic cell, the manufacture of technical equipment and the production of electrolytic aluminum of the pre-baked aluminum electrolytic cell.
Technical background: the main structure of the conventional aluminum electrolysis cell comprises a cathode molten pool structure of the aluminum electrolysis cell at the lower part, an anode conductive structure at the upper part, a smoke discharging and dust removing system, an upper bearing structure and a crust breaking and feeding device.
The aluminum oxide crust breaking and feeding device has the main functions that a crust breaking hammer head is used for breaking down an electrolyte crust to form a discharging exhaust channel, and aluminum oxide powder which is a production raw material of electrolytic aluminum is added into an electrolyte liquid layer of an aluminum electrolytic cell according to set technical requirements so as to realize electrolytic chemical reaction and generate electrolytic aluminum liquid. The alumina feeding device for pre-baked aluminum electrolytic bath consists of two executing mechanisms, one crust breaking unit and one blanking unit, which are installed on the upper truss structure of the aluminum electrolytic bath.
The crust breaking device is constructed by components such as a crust breaking cylinder 4, a guide connecting rod, a crust breaking hammer head and a crust breaking hammer head guide pipe: in order to prevent the crust breaking hammer from contacting with electrolyte and aluminum liquid, anode current at the upper part of the electrolytic bath is conducted to a cathode to form reactive short-circuit current loss, thereby causing accidents. The crust breaking hammer head guide pipe is fixedly arranged on a horizontal fume hood plate at the bottom end of an aluminum electrolysis superstructure in an insulation structure configuration mode; the crust breaking cylinder 4 is also fixedly arranged on the upper structure of the electrolytic bath in an insulation structure configuration mode; the guide connecting rod and the crust-breaking hammer are arranged in the crust-breaking hammer guide pipe in an insulation structure configuration mode with the upper structure of the electrolytic bath.
The aluminum oxide blanking device is constructed by a constant volume blanking device and an aluminum oxide guide pipe which are arranged on a bearing truss structure on the upper part of the aluminum electrolytic cell, the upper end of the aluminum oxide guide pipe is arranged on a horizontal fume hood plate at the bottom end of the upper part of the aluminum electrolytic cell by adopting a welding and fixing (conductive connection mode), and the lower port of the aluminum oxide guide pipe can only be arranged at the side parts of the guide pipe and the crust-breaking hammer head for preventing the aluminum oxide guide pipe and the crust-breaking hammer head from generating conductive contact, and is provided with a certain spatial distance.
In the electrolytic production process, the crust-breaking hammer head can reciprocate up and down under the pushing of a piston rod of the crust-breaking cylinder 4 and the restraint of the guide pipe, so that the crust of covering materials on the upper surface layer of electrolyte liquid of the aluminum electrolytic cell can be broken through, and the functions of alumina powder feeding and exhausting channels (commonly called as 'feed opening fire holes') are formed on the covering material layers. Alumina powder flowing from the constant volume feeder is added into electrolyte liquid of the aluminum electrolytic cell through a feeding fire hole formed by impacting an electrolyte covering material layer of the aluminum electrolytic cell through an alumina material guide pipe and a crust breaking hammer head, and participates in electrolytic reaction to generate electrolytic aluminum.
The above-mentioned construction mode of the existing aluminum electrolysis cell alumina crust breaking charging device mainly has the following defects:
1. because the lower port of the alumina guide pipe is arranged at the side part of the guide pipe and the crust breaking hammer head and has a certain inclined space distance from the 'discharging fire hole', the alumina powder flowing out of the lower port of the alumina guide pipe can be accumulated around the edge of the 'discharging fire hole', or part of the alumina powder is sucked away by negative pressure air in the electrolytic cell, so that the alumina powder can not be accurate and direct, and the alumina powder is added into electrolyte liquid according to the process setting amount to form the phenomenon of the material shortage effect of the electrolytic cell.
2. Because the crust-breaking hammer head guide pipe is a component fixedly arranged on the horizontal smoke hood plate, the distance from the upper surface of the cathode at the bottom of a molten pool of a cathode chamber of the aluminum electrolytic cell is a fixed height, and in the production process of the electrolytic cell, the electrolyte liquid surface and the covering material crust surface in the electrolytic cell are variable heights, and the heights are changed. Therefore, the distance between the lower port of the guide pipe of the crust breaking hammer and the crust of the electrolyte covering material is suddenly far or near. If the aluminum oxide powder is close to the electrolytic cell, the side wall of the lower port of the guide pipe can block an inflow channel of the aluminum oxide powder and an overflow discharge channel of the electrolytic gas; if the part of the crust breaking hammer extending out of the guide pipe is too long, the guiding performance of the guide pipe on the crust breaking hammer can be lost or weakened, the hammer is influenced by magnetic force to generate deviation in the downward movement, so that the hammer is broken down to form irregular shape of a 'fire hole at a feed opening', and the smoothness of an alumina feeding channel is influenced or the fire hole is blocked.
3. Because the crust breaking moving cylinder which pushes the crust breaking hammer head to move up and down is fixedly arranged on the truss structure at the upper part of the aluminum electrolytic cell, the stroke of the piston of the crust breaking cylinder 4 is determined to be nonadjustable in length, and the length of the guide connecting rod and the hammer head are nonadjustable, namely, the height from the mounting fixed point of the crust breaking cylinder to the bottom dead center of the crust breaking hammer head movement is determined, but the level of aluminum liquid in the aluminum electrolytic cell, the level of electrolyte liquid and the thickness of a covering material layer are all randomly changed, therefore, the depth of the crust breaking hammer head penetrating into the electrolyte liquid layer is uncertain in the production process, so the following phenomena can be generated, if the bottom dead center of the hammer head movement is closer to the upper surface of a cathode carbon block at the bottom of the electrolytic cell and is too deep to insert into the electrolyte liquid layer, the abrasion consumption of the crust breaking hammer head is increased, and the iron content in the electrolytic aluminum liquid is increased, the service life of the hammer head is shortened, or the hammer head is inserted too deeply, so that the hammer head is bonded with electrolyte liquid to form a phenomenon that the hammer head is bonded with electrolyte liquid long package, and the hammer head bonded with the long package loses a crust breaking breakdown function and cannot impact a feed opening fire hole of an electrolyte covering material crust layer, so that alumina powder cannot be added into the electrolyte liquid; if the distance between the lower dead point of the hammer head motion and the upper surface of the cathode carbon block at the bottom of the electrolytic cell is far, namely the lower dead point of the hammer head motion is not contacted with an electrolyte liquid layer or is inserted into a covering material layer to be shallow, the hammer head can not hit and impact the electrolyte crusting to form a 'feed opening fire hole', so that the phenomenon of blocking of an alumina feeding channel is caused.
Because the aluminium cell is equipped to current electrolytic aluminum production main technology, there is the defect of above-mentioned structurality in overall structure design and alumina crust breaking feeding system device design, not only can cause alumina feeding device system to produce the trouble, and pray for a large amount of smelting staff to maintain alumina crust breaking feeding device and "feed opening fire hole" in the electrolysis production process, so not only extravagant manpower and materials, cause the production maintenance cost of electrolytic aluminum enterprise to increase, and with the efficiency of artifical maintenance aluminium cell work load, not only can cause the equilibrium of aluminium cell production technology to receive the probability influence of artificial interference to enlarge, and can influence the production technology stability of aluminium cell.
The invention content is as follows: in order to overcome the defects generated by the main structure of the conventional aluminum electrolytic cell and the aluminum oxide crust breaking and feeding device, the invention provides a design scheme of the aluminum oxide crust breaking and feeding device by comprehensive measures. The innovative purpose and the technical scheme of the design of the alumina crust breaking and feeding device are as follows:
(1) the problem of current device crust-breaking chips stand pipe lower port set for the working height, can not change according to the level of aluminium liquid layer in the aluminium electroloysis and electrolyte liquid layer, and carry out height control is solved to eliminate the problem that crust-breaking chips stand pipe lower port and "feed opening fire hole" easily produce the putty.
(2) The problem that the existing aluminum electrolysis structural design cannot realize integrated welding to form a intersecting connecting pipe and convey alumina powder because the guiding pipe of the crust breaking hammer and the alumina material guiding pipe are arranged in an insulating way;
(3) solves the problem that the lower dead point of the crust breaking hammer motion of the existing aluminum electrolysis bath crust breaking device can not set the working height according to the height requirement of the electrolytic aluminum production process.
The invention relates to a design scheme of an alumina crust breaking and feeding device, which is mainly technically characterized in that:
1. two lifting driving devices (13) and (20), namely the lifting driving device (13), are additionally arranged on the aluminum electrolysis upper truss structure 1 and are arranged at the side part of the crust breaking cylinder (4), and the purpose of adjusting the working height of the lower dead point of the crust breaking hammer head movement is realized by adjusting the method of adjusting the installation and fixation height of the crust breaking cylinder (4); the lifting driving device (20) is arranged at the upper parts of the alumina material guiding pipe (9), the crust breaking hammer head guiding pipe (10) and the synchronous sliding lifting device 12 assembly, and the purpose of adjusting the lower port setting working height of the alumina material guiding pipe (9) and the crust breaking hammer head guiding pipe (10) assembly is realized by adjusting the horizontal position height of the synchronous sliding lifting device (12); an upper guide sliding fixed frame (11) is additionally arranged on the horizontal fume hood plate (2), a synchronous sliding lifting device (12) is arranged in the guide sliding fixed frame (11), and the bottom of the synchronous sliding lifting device (12) is connected with a crust breaking hammer head guide pipe (10) assembly of an alumina material guide pipe (9).
According to the technical scheme, the guide sliding fixing frame (11) arranged on the horizontal fume hood plate (2) can be connected with the horizontal fume hood plate (2) in a welding structure conductive configuration mode: and can be connected with the horizontal fume hood plate (2) in an insulating structure configuration manner; when the guide sliding fixing frame (11) is connected with the horizontal fume hood plate in a conductive configuration mode, a synchronous sliding lifting device (12) in the guide sliding fixing frame (11) is connected with the alumina material guide pipe 9 and the crust breaking hammer head guide pipe 10 in an insulating structure configuration mode; when the guide sliding fixing frame (11) is connected with the horizontal fume hood plate (2) in an insulating configuration, the synchronous sliding lifting device (12) is connected with the aluminum oxide material guide pipe (9), the crust breaking hammer head guide pipe (10) and the welding assembly in a conductive structure configuration.
According to the technical scheme, the lifting driving device adopts a rotation driving mode of a screw rod transmission mechanism, and can be driven manually or by a mechanical device; when a mechanical device is used for driving, a control system of a driving motor can be connected with a control system of the aluminum electrolysis control box.
4. According to the technical scheme, the set working height of the lower dead point of the movement of the crust breaking hammer head can be adjusted by rotating the screw rod (28) arranged on the lifting driving device (13); the synchronous sliding lifting device (12) and the set working height of the aluminum oxide material guide pipe and the crust breaking hammer head guide pipe assembly can be adjusted by rotating the screw rod arranged on the lifting driving device (20).
According to the technical scheme, the horizontal projection of the appearance contour of the guide sliding fixing frame (11) fixedly installed on the horizontal fume hood plate (2) can be rectangular or a rectangular and semicircular combination type, and the appearance shape of the synchronous sliding lifting device (12) installed in the guide sliding fixing frame (11) is correspondingly configured.
According to the technical scheme, the aluminum oxide material guide (8) and the crust-breaking hammer head guide pipe 10 are in a penetrating, welding, combining and configuring structure.
Compared with the prior art, the aluminum electrolytic cell structure and the crust breaking and feeding device which are constructed and prepared by adopting the technical scheme of the invention have the advantages that:
because the lifting driving device capable of adjusting the working height of the lower dead point of the crust breaking hammer movement is arranged at the side part of the crust breaking cylinder (4) of the aluminum electrolytic cell, the depth of the crust breaking hammer penetrating into the electrolyte layer is controlled, so that the phenomenon that the hammer is bonded with the electrolyte long bag due to the excessively deep penetration of the hammer can be prevented, the phenomenon that the hammer cannot hit the electrolyte crust due to the improper penetration of the hammer can be prevented, the phenomenon that the hammer cannot hit the electrolyte crust can be prevented, the' fire hole of a blanking port can not be opened, and the phenomenon that a feeding channel and an exhaust channel can not be formed can be prevented;
because set up direction slip fixed frame (11) and synchronous slip lifting device (12) in aluminium cell horizontal fume shield board department, and be provided with lift drive (20) that can adjust crust-breaking hammer head stand pipe (10) working height above that, consequently, can make the adjustment of working height on crust-breaking hammer head stand pipe lower port apart from electrolyte crust surface controlled, consequently, can improve the direction performance of crust-breaking hammer head stand pipe, can let the crust-breaking hammer head implement accurate striking, form regular "feed opening fire hole" who link up.
Because the aluminum oxide material guiding pipe (9) and the crust breaking hammer head guiding pipe (10) can form insulation configuration with the upper structure of the aluminum electrolytic cell on the structural design, a welding combination intersecting part can be formed between the crust breaking hammer head guiding pipe and the aluminum oxide material guiding pipe (9), so that the aluminum oxide powder flowing out from the lower port of the material guiding pipe can pass through the lower port of the guiding pipe and the 'feed opening fire hole', and can be directly added into electrolyte liquid from the vertical direction.
The invention relates to an alumina crust breaking and feeding device, which is improved by adopting the technical means of comprehensive implementation on the insulation design of the structure of the existing electrolytic tank, an alumina crust breaking device and an alumina feeding device, wherein two lifting driving devices are additionally arranged on the aluminum electrolytic tank, so that the lower dead point of the movement of a crust breaking hammer head and the working height of a guide pipe 10 of the crust breaking hammer head can be adjusted according to the two horizontally-changed process conditions of the aluminum electrolytic tank, and alumina powder is fed from the side end of a 'feed opening fire hole' to be vertically fed from the upper part of the 'feed opening fire hole'; therefore, the phenomenon of blocking of a fire hole at a feed opening is avoided, and the phenomenon of bonding a long bag by the crust breaking hammer is avoided. But also can prolong the service life of the crust breaking hammer head and reduce the maintenance workload of the crust breaking cylinder 4. Therefore, the maintenance workload of aluminum electrolysis is reduced, the external manual interference of the aluminum electrolysis cell can be reduced, and the maintenance-free unattended production of the aluminum electrolysis cell is realized.
Description of the drawings: the technical characteristics of the alumina crust breaking and feeding device can be more clearly shown by the attached drawings and the embodiment.
FIG. 1 is a front view of a prior art aluminum electrolysis cell structure.
FIG. 2 is a front view of an embodiment 1 of an alumina crust breaking charging device of the present invention.
FIG. 3 is a front view of an embodiment 2 of an alumina crust breaking charging device of the present invention.
Fig. 4 is a top plan view of fig. 3.
Fig. 5 is a sectional side view taken along line a-a of fig. 3.
Fig. 6 is a side view of the section B-B of fig. 3.
The figures show that: the device comprises an aluminum electrolytic cell upper truss structure 1, a horizontal fume shield plate 2, a dust removal exhaust flue 3, a crust breaking cylinder 4, a crust breaking hammer connecting rod 5, a crust breaking hammer 6, a constant volume feeder 7, alumina powder 8, an alumina material guide pipe 9, a crust breaking hammer guide pipe 10, a guide sliding fixed frame 11, a synchronous sliding lifting device 12, a lifting driving device 13, a lifting connecting piece 14, a covering crust layer 15, an electrolyte liquid layer 16, an aluminum liquid layer 17, a cathode carbon block layer 18, a blanking port fire hole 19, a lifting driving device 20, an installation supporting frame 21, an alumina powder inflow interface 22, a telescopic material guide pipe 23, a connecting pull rod 24, an insulating bolt connecting point 25, a fixed frame 26, a lifting connecting plate 27, a screw 28, a horizontal supporting connecting plate 29 and an insulating base plate 30.
The specific implementation mode is as follows: the technical scheme and the characteristics of the novel aluminum electrolytic cell structure are clearer through the embodiment.
The invention relates to an alumina crust breaking and feeding device, which is characterized in that: two screw rod driving lifting devices are additionally arranged on the aluminum electrolytic cell, as shown in figures 2 and 3.
A lifting driving device (13) which is newly arranged and is fixedly arranged on the upper truss structure (1) of the electrolytic bath by using an installation supporting frame (21), and a lifting connecting plate (27) of the device (13) is configured and connected with the crust breaking cylinder (4); the crust breaking cylinder (4) can be driven to move up and down by rotating a screw rod (28) of the device, and the set height of the lower dead point of the movement of the crust breaking hammer head (6), namely the depth of the crust breaking hammer head (6) inserted into the electrolyte liquid layer (16), is adjusted and determined by a method of adjusting the height of the installation fixed point of the crust breaking cylinder (4).
The other is a newly-added lifting driving device (20) which is installed and fixed on the upper truss structure (1) of the electrolytic bath through an installation supporting frame (21); the connecting pull rod (24) of the device (20) is structurally connected with an aluminum oxide material guiding pipe (9) and a crust breaking hammer head guiding pipe (10) assembly through a lifting connecting piece (14) and a synchronous sliding lifting device (12), and the synchronous sliding lifting device (12) arranged in a guiding sliding fixed frame (11) of a horizontal fume shield plate (2) can be driven to move up and down by rotating a screw rod of the device (20), so that the purpose of adjusting the set working height of the aluminum oxide material guiding pipe (9) and the crust breaking hammer head guiding pipe (10) welding assembly is achieved. Namely, the lower port of the crust breaking hammer guide pipe (10) can be adjusted to the height from the upper surface of the electrolyte liquid layer (16) to the upper covering crust layer (15) by rotating the screw rod (28) of the device (20).
In order to avoid the lower port of the material guide pipe (9), the alumina powder (8) which flows down can not be evenly added into the electrolyte liquid layer (16) through the 'feed opening fire hole' (19), and the lower port of the alumina material guide pipe (9) and the crust breaking hammer head guide pipe (10) are in a coherent combined welding structure, namely in conductive connection.
In order to prevent the occurrence of reactive current loss and short circuit accidents caused by the fact that anode current of an aluminum electrolysis superstructure is short-circuited and transmitted to cathode materials when a crust-breaking hammer head (6) arranged in a crust-breaking hammer head guide pipe (10) is in contact with an electrolyte liquid layer 16 or an aluminum liquid layer 17 in the downward movement process, the invention provides a novel aluminum electrolysis structure aluminum oxide guide pipe (9) and crust-breaking hammer head guide pipe 10 assembly, and a horizontal fume hood plate (2) or a dust removal exhaust flue (3) arranged at the bottom of an aluminum electrolysis upper truss structure (1) are configured by adopting an insulating structure.
The specific insulation connection construction mode is as shown in the following embodiments:
example 1: as shown in fig. 2, the alumina crust breaking and charging device of the embodiment is a lifting driving device (13) arranged at the side part of a crust breaking cylinder (4), and an insulation configuration structure is arranged between the lifting driving device (13) arranged at the upper part of a synchronous sliding lifting device (12) and an upper truss structure (1) structure of an aluminum electrolytic cell; an alumina material guide pipe (9) and a crust breaking hammer head guide pipe (10) are welded and combined, and are also connected with a horizontal fume hood plate (2) arranged at the bottom of an aluminum electrolysis upper truss structure 1 or a metal component of a dust removal exhaust flue (3) in an insulation structure; as shown in fig. 2, the insulating arrangement is configured such that a fixed frame is welded around the guide sliding fixed frame (11), an insulating pad (30) is disposed between the fixed frame and the horizontal fume hood plate (2), and then the guide sliding fixed frame (11) is fixedly mounted on the horizontal fume hood plate (2) by using the insulating pad (30), an insulating sleeve and a fastening bolt; as the guide sliding fixing frame (11) and the horizontal fume hood plate (2) are arranged in an insulating structure, the synchronous sliding lifting device (12) arranged in the guide sliding fixing frame (11) and the aluminum oxide material guide pipe (9) and the crust breaking hammer head guide pipe (12) are welded and combined, and non-insulating conductive structural connection can be carried out in a welding or bolt connection mode. An alumina crust breaking feeding device is formed by combining an alumina guide pipe (9), a crust breaking hammer head guide pipe (10) and a synchronous sliding lifting device (12) (namely, a horizontal supporting connecting plate 29 of the embodiment is shown in figure 3), can be arranged between an upper truss structure (1) of an aluminum electrolytic cell, namely a horizontal fume hood plate (2) in an insulating structure, and can be driven by a lifting driving device (20) to move up and down under the restriction of a guiding sliding fixed frame (11).
scheme 1: welding a horizontal support connecting plate (29) at the upper end of a welding assembly of an aluminum oxide guide pipe (9) and a crust breaking hammer guide pipe (10) to form an assembly, arranging a synchronous sliding lifting device (12) into a box-shaped component, then adopting a mode of insulating cushion material isolation and fixation to weld the crust breaking hammer guide pipe (10), the aluminum oxide guide pipe (10) and the horizontal support connecting plate (29) to the assembly, and constructing the assembly together with a metal shell of a box body of the synchronous sliding lifting device (12) to form the aluminum oxide guide pipe (9), the crust breaking hammer guide pipe (10) and the horizontal support connecting plate (29) which are in insulating configuration with the metal plate of the box body of the synchronous sliding lifting device (12), can enable the guide pipe (10) to accommodate crust breaking hammers to pass through and enable the aluminum oxide powder 8 to pass through the aluminum oxide guide pipe (9), flows into the lower end of the guide pipe; the aluminum electrolysis cell structure is characterized in that the aluminum oxide material guide pipe (9), the crust breaking hammer head guide pipe (10) and the synchronous sliding lifting device (12) combined piece can move up and down under the driving of the lifting driving device (20) and the limiting constraint of the guiding sliding fixed frame (11).
Note: because the alumina guide tube (9) and the crust-breaking hammer head guide tube (10) with the structure are arranged in an insulating way with the shell of the synchronous sliding lifting device (12) and are arranged at the upper end of the synchronous sliding lifting device (12) and between the synchronous sliding lifting device and the lifting driving device (20), the lifting connecting piece (14) and the connecting pull rod (24) can be directly connected with conductive metal, namely, the lifting driving device (20) can be connected with the truss structure (1) on the upper part of the aluminum electrolytic cell by adopting non-insulating conductive metal components, if the mounting supporting frame (21) is directly connected with the mounting and fixing, the arrangement does not need to be carried out by insulating materials.
The alumina crust breaking and feeding device is characterized in that an alumina powder inflow interface (22) is arranged at the upper part of the synchronous sliding and lifting device (12) and the upper end of an alumina material guide pipe (9), and the alumina powder inflow interface (22) can be structurally connected with an alumina powder (8) effusion hole of an alumina constant volume feeder (7) through a telescopic material guide pipe.
Alumina powder (8) discharged from the constant volume feeder can be directly added into the electrolyte layer (16) from the vertical direction through the telescopic material guide pipe (27), the alumina material guide pipe (9), the crust breaking hammer head guide pipe (9) and the feed opening fire hole (19) arranged at the bottom of the crust breaking hammer head guide pipe (10).
The screw shafts (28) of the two lifting driving devices (13) and (20) of the alumina crust breaking and feeding device can be driven manually or by an electric mechanical device.
Claims (2)
1. The utility model provides an aluminium oxide feeding device that crust breaking, characterized by: two screw height adjusting lifting driving devices are additionally arranged on the truss structure (1) at the upper part of the aluminum electrolytic cell, the lifting driving devices (13) are arranged at the side part of the crust breaking cylinder (4), and the purpose of adjusting the working height of the lower dead point of the movement of the crust breaking hammer head (6) is realized by a method of adjusting the installation fixed point of the crust breaking cylinder (4); the other lifting driving device (20) is arranged at the upper parts of the alumina material guide pipe (9), the crust breaking hammer head guide pipe (10) and the synchronous sliding lifting device (12) through a lifting connecting piece (14) and a connecting pull rod (24), and the lifting driving device (20) is connected with the synchronous sliding lifting device (12); the bottom of a synchronous sliding lifting device (12) is connected with an aluminum oxide material guide pipe (9) and a crust breaking hammer head guide pipe (10) assembly; a guiding sliding fixed frame (11) is additionally arranged on the horizontal fume hood plate (2) of the aluminum electrolytic cell; the aluminum oxide material guide pipe (9) and crust breaking hammer head guide pipe (10) assembly is arranged between the aluminum electrolysis upper truss structure metal component and is configured by adopting an insulating structure: when the guide sliding fixing frame (11) is connected with the horizontal fume hood plate (2) in a conductive configuration mode, the synchronous sliding lifting device (12) in the guide sliding fixing frame (11) is connected with the alumina material guide pipe (9) and the crust breaking hammer head guide pipe (10) in an insulating structure configuration mode; when the guide sliding fixing frame (11) is connected with the horizontal fume hood plate (2) in an insulating configuration mode, the synchronous sliding lifting device (12) is connected with a welding assembly of the alumina material guide pipe (9) and the crust breaking hammer head guide pipe (10) in a conductive structure configuration mode; alumina powder inflow interfaces (22) are arranged at the upper part of the synchronous sliding lifting device (12) and the upper end of the alumina material guide pipe (9); a screw rod (28) of the rotary lifting driving device (20) can drive a synchronous sliding lifting device (12) arranged in the guide sliding fixing frame (11) and an alumina material guide pipe (9) and crust breaking hammer head guide pipe (10) assembly to move up and down synchronously under the constraint of the guide sliding fixing frame (11); so that the height distance between the lower port of the aluminum oxide material guide pipe (9) and the lower port of the crust breaking hammer head guide pipe (10) and the covering crust layer (15) can be adjusted; therefore, the alumina powder (8) flowing out of the constant volume feeder (7) can be directly added into the electrolyte liquid layer (16) at the bottom of the feed opening fire hole (19) from the vertical direction through the alumina powder inflow interface (22), the lower port of the aluminum oxide guide pipe (9) and the crust breaking hammer guide pipe (10) assembly.
2. An alumina crust breaking and charging device according to claim 1, characterized in that: the upper part of a synchronous sliding lifting device (12) is provided with an alumina powder (8) inflow interface (22) at the upper end of an alumina material guiding pipe (9), the interface (22) is structurally connected with an alumina powder (8) discharge opening of an alumina constant volume feeder (7) through a telescopic material guiding pipe (27), so that the alumina powder (8) flowing out of the constant volume feeder (7) passes through the alumina material guiding pipe (9), a crust breaking hammer head guiding pipe (10) assembly and a feed opening fire hole (19) and is directly added into an electrolyte liquid layer from the vertical direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610657207 | 2016-08-05 | ||
| CN2016106572075 | 2016-08-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106947981A CN106947981A (en) | 2017-07-14 |
| CN106947981B true CN106947981B (en) | 2022-01-07 |
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Family Applications (15)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710027480.4A Pending CN106591886A (en) | 2016-08-05 | 2017-01-06 | Height adjusting device for crust breaking air cylinder of aluminum electrolytic bath |
| CN201710027479.1A Active CN106835199B (en) | 2016-08-05 | 2017-01-06 | Height adjusting device for crust breaking cylinder |
| CN201710292157.XA Active CN107130259B (en) | 2016-08-05 | 2017-04-22 | Aluminum oxide feeding device for aluminum electrolysis cell |
| CN201710292159.9A Active CN106947981B (en) | 2016-08-05 | 2017-04-22 | Alumina crust breaking and feeding device |
| CN201710440540.5A Active CN107687006B (en) | 2016-08-05 | 2017-06-04 | Height adjusting mechanism for screw rod of crust breaking cylinder |
| CN201710440365.XA Active CN107687005B (en) | 2016-08-05 | 2017-06-04 | Novel aluminum cell crust breaking and feeding device |
| CN201710599368.8A Pending CN107447234A (en) | 2016-08-05 | 2017-07-05 | A kind of crust breaking cylinder of adjustable installation fixing point height |
| CN201710599367.3A Pending CN107326399A (en) | 2016-08-05 | 2017-07-05 | A kind of crust breaking cylinder screw height adjuster |
| CN201710654069.XA Withdrawn CN107268036A (en) | 2016-08-05 | 2017-08-02 | Sidepiece is provided with the crust breaking cylinder of bolt connecting hole |
| CN201720959254.5U Expired - Fee Related CN207244018U (en) | 2016-08-05 | 2017-08-02 | Crust breaking cylinder screw height adjuster |
| CN201720959255.XU Expired - Fee Related CN207244019U (en) | 2016-08-05 | 2017-08-02 | Sidepiece is provided with the crust breaking cylinder of bolt connecting hole |
| CN201710654066.6A Withdrawn CN107366007A (en) | 2016-08-05 | 2017-08-02 | A kind of aluminium cell pinkeye feed opening building method |
| CN201720959253.0U Expired - Fee Related CN207552468U (en) | 2016-08-05 | 2017-08-02 | Crust breaking cylinder side is lifted attachment device |
| CN201710654067.0A Withdrawn CN107236971A (en) | 2016-08-05 | 2017-08-02 | Crust breaking cylinder screw height adjuster |
| CN201710654068.5A Withdrawn CN107227467A (en) | 2016-08-05 | 2017-08-02 | Crust breaking cylinder sidepiece lifting attachment means |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710027480.4A Pending CN106591886A (en) | 2016-08-05 | 2017-01-06 | Height adjusting device for crust breaking air cylinder of aluminum electrolytic bath |
| CN201710027479.1A Active CN106835199B (en) | 2016-08-05 | 2017-01-06 | Height adjusting device for crust breaking cylinder |
| CN201710292157.XA Active CN107130259B (en) | 2016-08-05 | 2017-04-22 | Aluminum oxide feeding device for aluminum electrolysis cell |
Family Applications After (11)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710440540.5A Active CN107687006B (en) | 2016-08-05 | 2017-06-04 | Height adjusting mechanism for screw rod of crust breaking cylinder |
| CN201710440365.XA Active CN107687005B (en) | 2016-08-05 | 2017-06-04 | Novel aluminum cell crust breaking and feeding device |
| CN201710599368.8A Pending CN107447234A (en) | 2016-08-05 | 2017-07-05 | A kind of crust breaking cylinder of adjustable installation fixing point height |
| CN201710599367.3A Pending CN107326399A (en) | 2016-08-05 | 2017-07-05 | A kind of crust breaking cylinder screw height adjuster |
| CN201710654069.XA Withdrawn CN107268036A (en) | 2016-08-05 | 2017-08-02 | Sidepiece is provided with the crust breaking cylinder of bolt connecting hole |
| CN201720959254.5U Expired - Fee Related CN207244018U (en) | 2016-08-05 | 2017-08-02 | Crust breaking cylinder screw height adjuster |
| CN201720959255.XU Expired - Fee Related CN207244019U (en) | 2016-08-05 | 2017-08-02 | Sidepiece is provided with the crust breaking cylinder of bolt connecting hole |
| CN201710654066.6A Withdrawn CN107366007A (en) | 2016-08-05 | 2017-08-02 | A kind of aluminium cell pinkeye feed opening building method |
| CN201720959253.0U Expired - Fee Related CN207552468U (en) | 2016-08-05 | 2017-08-02 | Crust breaking cylinder side is lifted attachment device |
| CN201710654067.0A Withdrawn CN107236971A (en) | 2016-08-05 | 2017-08-02 | Crust breaking cylinder screw height adjuster |
| CN201710654068.5A Withdrawn CN107227467A (en) | 2016-08-05 | 2017-08-02 | Crust breaking cylinder sidepiece lifting attachment means |
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| CN113122883A (en) * | 2021-03-18 | 2021-07-16 | 沈阳铝镁设计研究院有限公司 | Preheating method for aluminum oxide on upper part of aluminum electrolytic cell |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107687005A (en) | 2018-02-13 |
| CN107687005B (en) | 2021-11-02 |
| CN107236971A (en) | 2017-10-10 |
| CN106591886A (en) | 2017-04-26 |
| CN107687006A (en) | 2018-02-13 |
| CN207244019U (en) | 2018-04-17 |
| CN106947981A (en) | 2017-07-14 |
| CN107326399A (en) | 2017-11-07 |
| CN207244018U (en) | 2018-04-17 |
| CN106835199A (en) | 2017-06-13 |
| CN107687006B (en) | 2021-10-22 |
| CN107268036A (en) | 2017-10-20 |
| CN107366007A (en) | 2017-11-21 |
| CN207552468U (en) | 2018-06-29 |
| CN107130259B (en) | 2021-04-27 |
| CN107447234A (en) | 2017-12-08 |
| CN107130259A (en) | 2017-09-05 |
| CN107227467A (en) | 2017-10-03 |
| CN106835199B (en) | 2021-08-20 |
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