CN109338412B - Assembled energy-saving anode steel claw of aluminum electrolytic cell and assembling method thereof - Google Patents
Assembled energy-saving anode steel claw of aluminum electrolytic cell and assembling method thereof Download PDFInfo
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- CN109338412B CN109338412B CN201811566997.1A CN201811566997A CN109338412B CN 109338412 B CN109338412 B CN 109338412B CN 201811566997 A CN201811566997 A CN 201811566997A CN 109338412 B CN109338412 B CN 109338412B
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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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
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Abstract
An assembled energy-saving anode steel claw of an aluminum electrolytic cell and an assembling method thereof, wherein the steel claw comprises a claw core, the outer side of an upper main rod, the top surface and the side surface of a middle cross rod of the claw core are sleeved with a shell, and a support rod is respectively sleeved with a protective sleeve; the bottom surface is covered with a lower guard plate, and the shell and the protective sleeve are fixed on the claw core by a support rod bolt; the claw core is made of metal aluminum. The assembling method comprises the following steps: (1) making a claw core, a shell, a lower guard plate and a protective sleeve; drilling holes in the claw core, the shell and the protective sleeve; (2) the shell is sleeved on the claw core, the lower protection plate covers the bottom of the claw core, and the bottom support rod is sleeved with the upper protection sleeve; fixing by using a strut bolt; (3) an aluminum plate is welded between the aluminum guide rod and the claw core; (4) welding a connecting steel plate at the top end of the shell; (5) and fixing the connecting steel plate and the aluminum guide rod through a guide rod bolt. The steel claw structure of the invention can solve a plurality of defects of the steel claw used in the traditional electrolytic production.
Description
Technical Field
The invention belongs to the technical field of aluminum electrolysis equipment, and particularly relates to an assembled energy-saving anode steel claw of an aluminum electrolysis cell and an assembling method thereof.
Background
The anode steel claw of the electrolytic cell is an important component of an anode group on the electrolytic cell and is mainly used for conducting electricity and bearing the load of an anode carbon block. In the traditional method, the steel claw is a steel casting, so that the resistance is large, the voltage drop of the steel claw is large in the production of an electrolytic bath, the electric power is reduced, and the production cost is increased; in the traditional method, the steel claw and the guide rod are connected by virtue of a steel-aluminum explosive welding block, and the welding seam of the explosive welding block is easy to crack and has a depolarization phenomenon.
Disclosure of Invention
The invention aims to provide an assembled energy-saving anode steel claw of an aluminum electrolytic cell and an assembling method thereof.
The assembled energy-saving anode steel claw of the aluminum electrolytic cell comprises a claw core, a shell and protective sleeves, wherein the claw core consists of an upper main rod, a middle cross rod and a plurality of bottom support rods; the bottom surface of the middle cross rod of the claw core is covered with a lower guard plate, and the lower guard plate is connected with the top surface of each protective sleeve; the bottom end of each protective sleeve is provided with a seal head which is respectively connected with the bottom of each bottom supporting rod; a through hole is arranged in each bottom supporting rod, a middle bolt hole is arranged on the shell and corresponds to the through hole on the bottom supporting rod, a bottom bolt hole is arranged on the end socket of the protective sleeve and corresponds to the through hole on the supporting rod, and a supporting rod bolt penetrates through the through hole to combine the shell, the protective sleeve and the claw core into a whole; wherein the claw core is made of metal aluminum.
The part of the shell, which is positioned on the side surface of the middle cross rod, extends downwards to form the bottom surface of the middle cross rod, and the side edge of the lower guard plate is welded and fixed with the shell.
The top end of the shell is fixedly welded with a connecting steel plate, and the connecting steel plate is surrounded by two connecting steel plates I and two connecting steel plates II to form a square cylinder shape; wherein I has seted up the bolt hole respectively on two connection steel sheet, and two I relative settings of connection steel sheet.
A plurality of connecting aluminum plates are welded and fixed on the top surface of the upper main rod of the claw core and are used for being welded and fixed with the aluminum guide rod; each connecting aluminum plate is axially parallel to the upper main rod, and the horizontal sectional area of the area where all the connecting aluminum plates are located is the same as that of the upper main rod.
The assembling method of the assembled energy-saving anode steel claw of the aluminum electrolytic cell comprises the following steps:
1. prefabricating a claw core, a shell, a lower guard plate and a protective sleeve according to the required shape; drilling a through hole on a supporting rod at the bottom of a body of the claw core, drilling a bolt hole on the shell, and drilling a bolt hole on an end socket of the protective sleeve;
2. sleeving the shell on the claw core, covering the lower protection plate at the bottom of the claw core and fixedly welding the lower protection plate with the shell, and then assembling a protection sleeve outside a support rod at the bottom of the claw core; the shell, the claw core and the protective sleeve are connected and fixed by a strut bolt matched with a nut connecting piece;
3. drilling a through hole at the lower part of the aluminum guide rod; welding a plurality of connecting aluminum plates at the bottom end of the aluminum guide rod and the top end of the upper main rod of the claw core, and connecting the aluminum guide rod and the upper main rod together;
4. prefabricating two connecting steel plates I and two connecting steel plates II, and respectively drilling bolt holes in the two connecting steel plates I; welding a connecting steel plate I and two connecting steel plates II at the top end of the shell, wherein two sides of each two steel plates I are welded and fixed with one connecting steel plate II, and the two connecting steel plates I are oppositely arranged;
5. and the supporting rod bolt penetrates through a through hole in the aluminum guide rod and bolt holes of the two connecting steel plates I, and the connecting steel plates I, the two connecting steel plates II and the aluminum guide rod are fixed together by matching with the nut connecting piece to complete assembly.
In the method, the claw core is in clearance fit with the shell.
In the method, the protective sleeve is in interference fit with the bottom support rod of the claw core, the protective sleeve is heated to expand the inner diameter and then is sleeved outside the bottom support rod of the claw core, and the protective sleeve is in interference fit with the bottom support rod of the claw core after being cooled and shrunk.
According to the method, the steel plate and the aluminum guide rod are fixedly connected through the bolts, so that the open welding and the electrode stripping between the guide rod and the anode steel claw are effectively avoided; the claw core is mainly used for conducting electricity, and the shell and the protective sleeve are used for bearing load; the lower guard plate protects the bottom of the claw core and prevents the claw core from being corroded by electrolyte and the like; the claw core is made of metal aluminum, so that the resistance is small, the voltage drop is small, and the electric power loss is low; all parts are prefabricated parts, so that the manufacturing is easy and the processing cost is low; the integral steel claw structure can solve a plurality of defects of the steel claw used in the traditional electrolytic production.
Drawings
FIG. 1 is a schematic structural view of an assembled energy-saving anode steel claw of an aluminum electrolytic cell in embodiment 1 of the present invention;
FIG. 2 is an isometric view of FIG. 1;
FIG. 3 is a schematic view of the structure of FIG. 1 in the direction A;
FIG. 4 is a schematic structural view of an assembled energy-saving anode steel claw of an aluminum electrolytic cell in embodiment 2 of the present invention;
FIG. 5 is an isometric view of FIG. 4;
FIG. 6 is a schematic view of the structure of FIG. 4 in the direction A;
in the figure, 1, a claw core, 2, a shell, 3, a protective sleeve, 4, a lower protective plate, 5, a support rod bolt, 6, connecting steel plates I and 7, a connecting aluminum plate, 8, an aluminum guide rod, 9, a guide rod bolt, 10 and a connecting steel plate II.
Detailed Description
The connecting steel plate in the embodiment of the invention is formed by two connecting steel plates I and two connecting steel plates II in a square tube shape, wherein the two connecting steel plates I are oppositely arranged, and bolt holes are formed in the two connecting steel plates I and correspond to bolt holes in an aluminum guide rod.
The claw core, the connecting aluminum plate and the aluminum guide rod adopted in the embodiment of the invention are all made of metal aluminum with the purity of 99%.
In the embodiment of the invention, the shell, the protective sleeve, the lower protective plate and the connecting steel plate are Q345B.
The support rod bolt and the guide rod bolt adopted in the embodiment of the invention are 8-level screws.
When a plurality of connecting aluminum plates are welded on the top surface of the upper main rod in the embodiment of the invention, all the connecting aluminum plates are placed together side by side.
Example 1
The assembled energy-saving anode steel claw structure of the aluminum electrolytic cell is shown in figure 1, an axonometric view is shown in figure 2, an A-direction structure is shown in figure 3 and comprises a claw core, a shell and a protective sleeve, wherein the claw core consists of an upper total rod, a middle cross rod and a plurality of bottom support rods, the lower end of the upper total rod is connected with the middle part of a primary cross rod, two ends of the primary cross rod are respectively connected with the middle part of a secondary cross rod, and the end part of each secondary cross rod is provided with one bottom support rod which is totally 8 bottom support rods;
the outer side of the upper main rod, the top surface of the middle cross rod and the side surface of the middle cross rod of the claw core are sleeved with shells, and a protective sleeve is sleeved outside each bottom supporting rod; the bottom surface of the middle cross rod of the claw core is covered with a lower guard plate, and the lower guard plate is connected with the top surface of each protective sleeve; the bottom end of each protective sleeve is provided with a seal head which is respectively connected with the bottom of each bottom supporting rod; a through hole is arranged in each bottom supporting rod, a middle bolt hole is arranged on the shell and corresponds to the through hole on the bottom supporting rod, a bottom bolt hole is arranged on the end socket of the protective sleeve and corresponds to the through hole on the supporting rod, and a supporting rod bolt penetrates through the through hole to combine the shell, the protective sleeve and the claw core into a whole; wherein the claw core is made of metal aluminum;
the part of the shell, which is positioned on the side surface of the middle cross rod, extends downwards to form the bottom surface of the middle cross rod, and the side edge of the lower guard plate is welded and fixed with the shell.
The top end of the shell is fixedly welded with a connecting steel plate, and the connecting steel plate is surrounded by two connecting steel plates I and two connecting steel plates II to form a square cylinder shape; wherein I has seted up the bolt hole respectively on two connection steel sheet, and two I relative settings of connection steel sheet.
A plurality of connecting aluminum plates are welded and fixed on the top surface of the upper main rod of the claw core and are used for being welded and fixed with the aluminum guide rod; each connecting aluminum plate is axially parallel to the upper main rod, and the horizontal sectional area of the area where all the connecting aluminum plates are located is the same as that of the upper main rod
The assembly method comprises the following steps:
prefabricating a claw core, a shell, a lower guard plate and a protective sleeve according to the required shape; drilling a through hole on a supporting rod at the bottom of a body of the claw core, drilling a bolt hole on the shell, and drilling a bolt hole on an end socket of the protective sleeve;
sleeving the shell on the claw core, covering the lower protection plate at the bottom of the claw core and fixedly welding the lower protection plate with the shell, and then assembling a protection sleeve outside a support rod at the bottom of the claw core; the claw core is in clearance fit with the shell; protective case and claw core's bottom branch interference fit, the concrete mode is: heating a protective sleeve to expand the inner diameter, then sleeving the protective sleeve outside a bottom support rod of the claw core, and after cooling and shrinking, performing interference fit with the bottom support rod of the claw core; the shell, the claw core and the protective sleeve are connected and fixed by using a strut bolt and a nut connecting piece;
drilling a through hole at the lower part of the aluminum guide rod; welding a plurality of connecting aluminum plates at the bottom end of the aluminum guide rod and the top end of the upper main rod of the claw core, and connecting the aluminum guide rod and the upper main rod together;
prefabricating two connecting steel plates I and two connecting steel plates II, and respectively drilling bolt holes in the two connecting steel plates I; welding a connecting steel plate I and two connecting steel plates II at the top end of the shell, wherein two sides of each two steel plates I are welded and fixed with one connecting steel plate II, and the two connecting steel plates I are oppositely arranged;
and the supporting rod bolt penetrates through a through hole in the aluminum guide rod and bolt holes of the two connecting steel plates I, and the connecting steel plates I, the two connecting steel plates II and the aluminum guide rod are fixed together by matching with the nut connecting piece to complete assembly.
Example 2
The assembled energy-saving anode steel claw structure of the aluminum electrolytic cell is shown in figure 4, an axonometric view is shown in figure 5, an A-direction structure is shown in figure 6, the bottom end of an upper total rod of a claw core is connected with the middle part of a cross rod, four bottom support rods are uniformly distributed below the cross rod, and the rest is the same as that of the embodiment 1.
Claims (1)
1. The assembling method of the assembled energy-saving anode steel claw of the aluminum electrolytic cell is characterized in that the assembled energy-saving anode steel claw of the aluminum electrolytic cell comprises a claw core, a shell and a protective sleeve, wherein the claw core consists of an upper main rod, a middle cross rod and a plurality of bottom support rods; the bottom surface of the middle cross rod of the claw core is covered with a lower guard plate, and the lower guard plate is connected with the top surface of each protective sleeve; the bottom end of each protective sleeve is provided with a seal head which is respectively connected with the bottom of each bottom supporting rod; a through hole is arranged in each bottom supporting rod, a middle bolt hole is arranged on the shell and corresponds to the through hole on the bottom supporting rod, a bottom bolt hole is arranged on the end socket of the protective sleeve and corresponds to the through hole on the supporting rod, and a supporting rod bolt penetrates through the through hole to combine the shell, the protective sleeve and the claw core into a whole; wherein the claw core is made of metal aluminum; the part of the shell, which is positioned on the side surface of the middle cross rod, extends downwards to form the bottom surface of the middle cross rod, and the side edge of the lower guard plate is welded and fixed with the shell; the top end of the shell is fixedly welded with a connecting steel plate, and the connecting steel plate is surrounded by two connecting steel plates I and two connecting steel plates II to form a square cylinder shape; the two connecting steel plates I are respectively provided with a bolt hole, and are oppositely arranged; a plurality of connecting aluminum plates are welded and fixed on the top surface of the upper main rod of the claw core and are used for being welded and fixed with the aluminum guide rod; each connecting aluminum plate is axially parallel to the upper main rod, and the horizontal sectional area of the area where all the connecting aluminum plates are located is the same as that of the upper main rod; the shell, the protective sleeve, the lower protective plate and the connecting steel plate are Q345B;
the method comprises the following steps:
(1) prefabricating a claw core, a shell, a lower guard plate and a protective sleeve according to the required shape; drilling a through hole on a supporting rod at the bottom of a body of the claw core, drilling a bolt hole on the shell, and drilling a bolt hole on an end socket of the protective sleeve;
(2) sleeving the shell on the claw core, covering the lower protection plate at the bottom of the claw core and fixedly welding the lower protection plate with the shell, and then assembling a protection sleeve outside a support rod at the bottom of the claw core; the shell, the claw core and the protective sleeve are connected and fixed by a strut bolt matched with a nut connecting piece; the claw core is in clearance fit with the shell; protective case and claw core's bottom branch interference fit, the concrete mode is: heating a protective sleeve to expand the inner diameter, then sleeving the protective sleeve outside a bottom support rod of the claw core, and after cooling and shrinking, performing interference fit with the bottom support rod of the claw core;
(3) drilling a through hole at the lower part of the aluminum guide rod; welding a plurality of connecting aluminum plates at the bottom end of the aluminum guide rod and the top end of the upper main rod of the claw core, and connecting the aluminum guide rod and the upper main rod together;
(4) prefabricating two connecting steel plates I and two connecting steel plates II, and respectively drilling bolt holes in the two connecting steel plates I; welding a connecting steel plate I and two connecting steel plates II at the top end of the shell, wherein two sides of each two steel plates I are welded and fixed with one connecting steel plate II, and the two connecting steel plates I are oppositely arranged;
(5) and the supporting rod bolt penetrates through a through hole in the aluminum guide rod and bolt holes of the two connecting steel plates I, and the connecting steel plates I, the two connecting steel plates II and the aluminum guide rod are fixed together by matching with the nut connecting piece to complete assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811566997.1A CN109338412B (en) | 2018-12-20 | 2018-12-20 | Assembled energy-saving anode steel claw of aluminum electrolytic cell and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811566997.1A CN109338412B (en) | 2018-12-20 | 2018-12-20 | Assembled energy-saving anode steel claw of aluminum electrolytic cell and assembling method thereof |
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| CN109338412A CN109338412A (en) | 2019-02-15 |
| CN109338412B true CN109338412B (en) | 2020-10-27 |
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| CN110029364B (en) * | 2019-04-22 | 2020-05-19 | 贵州铝城铝业原材料研究发展有限公司 | Mechanical steel claw for aluminum electrolysis continuous prebaked anode |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486561Y (en) * | 2001-06-19 | 2002-04-17 | 高德金 | Anode conoductor for energy saving anti-corrosion aluminium electrolytic bath |
| CN1491759A (en) * | 2003-09-30 | 2004-04-28 | 广西壮族自治区农业机械研究所 | Process of colouring, binding and casting steel-shell aluminium-core anode claw for electrolyzing aluminium |
| CN2698815Y (en) * | 2004-04-11 | 2005-05-11 | 广西壮族自治区农业机械研究所 | Crossbeam anode claw with steel casing and aluminium core for aluminium cell |
| CN201046994Y (en) * | 2007-06-12 | 2008-04-16 | 广西壮族自治区农业机械研究院 | Steel shell aluminium-core beam anode paw |
| CN201125271Y (en) * | 2007-10-17 | 2008-10-01 | 高德金 | Steel claw heads on two ends of crossbeam with anode steel claws of vertical seam welding type composite aluminum and steel structure |
| CN202030836U (en) * | 2010-12-08 | 2011-11-09 | 陈小燕 | Energy saving and consumption reducing positive electrode claw |
| CN103372640A (en) * | 2012-04-28 | 2013-10-30 | 广西壮族自治区农业机械研究院 | Aluminizing and bonding casting production process of steel shell aluminum conductor anode claw beam |
| CN203866389U (en) * | 2014-05-08 | 2014-10-08 | 包头市中硕焊接科技有限公司 | Energy-saving steel claw with steel structure |
| CN203999844U (en) * | 2014-06-18 | 2014-12-10 | 中国有色（沈阳）冶金机械有限公司 | A kind of steel aluminum compound structure anode steel jaw |
| CN105624732A (en) * | 2014-11-27 | 2016-06-01 | 中国有色（沈阳）冶金机械有限公司 | Production method for low-resistance anode steel claw |
| CN207811887U (en) * | 2018-01-26 | 2018-09-04 | 洛阳富兴管业有限公司 | A kind of electrolytic aluminum anode pawl and the electrolytic aluminium equipment using the anode claw |
-
2018
- 2018-12-20 CN CN201811566997.1A patent/CN109338412B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486561Y (en) * | 2001-06-19 | 2002-04-17 | 高德金 | Anode conoductor for energy saving anti-corrosion aluminium electrolytic bath |
| CN1491759A (en) * | 2003-09-30 | 2004-04-28 | 广西壮族自治区农业机械研究所 | Process of colouring, binding and casting steel-shell aluminium-core anode claw for electrolyzing aluminium |
| CN2698815Y (en) * | 2004-04-11 | 2005-05-11 | 广西壮族自治区农业机械研究所 | Crossbeam anode claw with steel casing and aluminium core for aluminium cell |
| CN201046994Y (en) * | 2007-06-12 | 2008-04-16 | 广西壮族自治区农业机械研究院 | Steel shell aluminium-core beam anode paw |
| CN201125271Y (en) * | 2007-10-17 | 2008-10-01 | 高德金 | Steel claw heads on two ends of crossbeam with anode steel claws of vertical seam welding type composite aluminum and steel structure |
| CN202030836U (en) * | 2010-12-08 | 2011-11-09 | 陈小燕 | Energy saving and consumption reducing positive electrode claw |
| CN103372640A (en) * | 2012-04-28 | 2013-10-30 | 广西壮族自治区农业机械研究院 | Aluminizing and bonding casting production process of steel shell aluminum conductor anode claw beam |
| CN203866389U (en) * | 2014-05-08 | 2014-10-08 | 包头市中硕焊接科技有限公司 | Energy-saving steel claw with steel structure |
| CN203999844U (en) * | 2014-06-18 | 2014-12-10 | 中国有色（沈阳）冶金机械有限公司 | A kind of steel aluminum compound structure anode steel jaw |
| CN105624732A (en) * | 2014-11-27 | 2016-06-01 | 中国有色（沈阳）冶金机械有限公司 | Production method for low-resistance anode steel claw |
| CN207811887U (en) * | 2018-01-26 | 2018-09-04 | 洛阳富兴管业有限公司 | A kind of electrolytic aluminum anode pawl and the electrolytic aluminium equipment using the anode claw |
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