EP2592176A1 - Cellule d'électrolyse d'aluminium comprenant un bloc cathodique en carbone doté de parties saillantes colonnaires enchâssées sur sa surface supérieure - Google Patents

Cellule d'électrolyse d'aluminium comprenant un bloc cathodique en carbone doté de parties saillantes colonnaires enchâssées sur sa surface supérieure Download PDF

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Publication number
EP2592176A1
EP2592176A1 EP10854308.3A EP10854308A EP2592176A1 EP 2592176 A1 EP2592176 A1 EP 2592176A1 EP 10854308 A EP10854308 A EP 10854308A EP 2592176 A1 EP2592176 A1 EP 2592176A1
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EP
European Patent Office
Prior art keywords
carbon block
cathode carbon
columnar protrusions
block substrate
pot holes
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Application number
EP10854308.3A
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German (de)
English (en)
Inventor
Naixiang Feng
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Shenyang Beiye Metallurgical Technology Co Ltd
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Shenyang Beiye Metallurgical Technology Co Ltd
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Publication date
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Publication of EP2592176A1 publication Critical patent/EP2592176A1/fr
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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

Definitions

  • the diameter of the columnar protrusions is 17-35 cm, and the height difference between the columnar protrusions and the cathode carbon block substrate is 9-15 cm.
  • the width of the cathode carbon block is increased, the diameter of the columnar protrusions is increased in accordance with the increased proportion of the width of the cathode carbon block substrate.
  • the cathode carbon block of the aluminum electrolytic cell of the present invention is prepared in accordance with the following steps:
  • Thermosetting resin is mixed with graphite powder to prepare graphite paste, and the mix proportion is required to be capable of mixing paste; the graphite paste is filled into the pot holes; the columnar protrusions are arranged into the pot holes, wherein when the columnar protrusions are cuboid, the pot holes are square pot holes, the length and the width of the pot holes are 1-10 mm more than the length and the width of the columnar protrusions, and the cuboid columnar protrusions are vertically compressed into the pot holes; when the columnar protrusions are cylindrical, the pot holes are circular, and the side wall is machined with internal threads; the external threads of the columnar protrusions are matched with the internal threads of the pot holes, the columnar protrusions are screwed in the pot holes, and graphite paste is filled in the gap between the internal threads and the external threads; after the columnar protrusions are arranged into the pot holes, a part of the graphite paste in
  • the working condition when aluminum electrolysis is performed in the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is that: all the columnar protrusions of the cathode carbon block should be immersed in the aluminum liquid, the upper aluminum liquid is electrolyte melt, the height of the aluminum liquid level is higher than the upper surface of the protrusions and is 1-10 cm after aluminum production, and the working voltage of the electrolytic cell is 3.5-3.9 V
  • Figure 2 is a sectional view taken along line II-II in Figure 1 .
  • Figure 3 is a top view of the aluminum electrolytic cell of the second example of the present invention.
  • Figure 6 is a sectional view taken along line VI-VI in Figure 5 .
  • Figure 8 is the sectional view taken along line VIII-VIII in Figure 7 .
  • Figure 9 is a top view of the aluminum electrolytic cell of the fifth example of the present invention.
  • the preparation method of the cathode carbon block in the example of the present invention is as follows:
  • the method for preparing the cathode carbon block substrate is divided into two types:
  • Vibration molding or compression molding when using vibration molding or compression molding to prepare the green compact of cathode carbon block substrate, the bottom surface of a heavy obj ect on the material in the vibration molding mold is changed from a traditional plane into a structure with protrusions, or the bottom surface of a compression mold on the material in the mold is changed from a traditional plane into a structure having protrusions on its surface during compression molding; thus, after the cathode carbon block substrate is prepared by vibration molding or compression molding, the upper surface of the green compact of the cathode carbon block substrate which is prepared by vibration molding or compression molding has pot holes used for arranging the columnar protrusions; wherein the distribution locations of the protrusions on the bottom surface of the heavy object on the material in the mold or the mold bottom surface of the material in the mold correspond to the locations of the columnar protrusions embedded on the upper surface of the cathode carbon block substrate; the shape of the protrusions is consistent with that of the pot holes for arranging the columnar protru
  • the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is shown in Figure 1 , and the sectional view taken along line II-II in Figure 1 is shown in Figure 2 .
  • the electrolytic cell comprises a cell shell 1, a cell lining refractory insulation material, side carbon bricks 2, cathode carbon blocks and cathode steel bars 6.
  • Carbon ramming paste between cathode carbon blocks 10 is filled between two cathode carbon blocks, and each cathode carbon block is rammed with each side carbon brick by the carbon paste 5; wherein the cathode carbon block consists of a cathode carbon block substrate 3 and columnar protrusions 4 on the upper surface of the cathode carbon block substrate 3, and the columnar protrusions 4 are embedded on the upper surface of the cathode carbon block substrate 1.
  • the cell lining refractory insulation material comprises a cell bottom refractory insulation material 7 and a cell side refractory insulation material 8, and the side carbon paste 5 is arranged in the side carbon bricks 2.
  • the columnar protrusions are arranged into two rows in the length direction of the upper surface of the cathode carbon block substrate, all the columnar protrusions are uniformly distributed on the upper surface of the cathode carbon block substrate, and two adjacent rows of columnar protrusions are crisscross arranged.
  • the distance between two adjacent columnar protrusions of the columnar protrusions of the same row is 17-35 cm
  • the distance between two adjacent columnar protrusions of the columnar protrusions of different rows on the same cathode carbon block is 20 cm
  • the distance between two columnar protrusions adjacent to the aluminum outlet is 60 cm.
  • the working condition when aluminum electrolysis is performed in the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is that: all the columnar protrusions of the cathode carbon block should be immersed in the aluminum liquid, the upper aluminum liquid is electrolyte melt, the height of the aluminum liquid level is higher than the upper surface of the protrusions and is 1-10 cm after aluminum production, and the working voltage of the electrolytic cell is 3.5-3.9 V
  • the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is shown in Figure 3 , and the sectional view taken along line IV-IV in Figure 3 is shown in Figure 4 .
  • the structure of the electrolytic cell is consistent with that of the electrolytic cell in example 1, and is differentia from that of the electrolytic cell in example 1 in that:
  • the columnar protrusions are arranged in three rows in the length direction of the upper surface of the cathode carbon block substrate, the length of the columnar protrusions is 21 cm, the width of the columnar protrusions is 19 cm, and the height difference between the columnar protrusions and the upper surface of the cathode carbon block substrate is 10 cm.
  • the distance between two adjacent columnar protrusions of the columnar protrusions of the same row is 25 cm
  • the distance between two adjacent columnar protrusions of the columnar protrusions of different rows on the same cathode carbon block is 5 cm
  • the distance between two columnar protrusions adjacent to the aluminum outlet is 50 cm.
  • the columnar protrusions are made of the mixture of calcined anthracite and artificial graphite.
  • the working condition when aluminum electrolysis is performed in the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is that: all the columnar protrusions of the cathode carbon block should be immersed in the aluminum liquid, the upper aluminum liquid is electrolyte melt, the height of the aluminum liquid level is higher than the upper surface of the protrusions and is 1-10 cm after aluminum production, and the working voltage of the electrolytic cell is 3.5-3.9 V
  • the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is shown in Figure 5 , and the sectional view taken along line VI-VI in Figure 5 is shown in Figure 6 .
  • the structure of the electrolytic cell is consistent with that of the electrolytic cell in example 1, and is differentia from that of the electrolytic cell in example 1 in that:
  • the distance between two adjacent columnar protrusions of the columnar protrusions of the same row is 30 cm
  • the distance between two adjacent columnar protrusions of the columnar protrusions of different rows on the same cathode carbon block is 20 cm
  • the distance between two columnar protrusions adjacent to the aluminum outlet is 40 cm.
  • the columnar protrusions are made of artificial graphite which is moulded and roasted.
  • the working condition when aluminum electrolysis is performed in the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is that: all the columnar protrusions of the cathode carbon block should be immersed in the aluminum liquid, the upper aluminum liquid is electrolyte melt, the height of the aluminum liquid level is higher than the upper surface of the protrusions and is 1-10 cm after aluminum production, and the working voltage of the electrolytic cell is 3.5-3.9 V
  • the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is shown in Figure 7 , and the sectional view taken along line VIII-VIII in Figure 7 is shown in Figure 8 .
  • the structure of the electrolytic cell is consistent with that of the electrolytic cell in example 3, and is differentia from that of the electrolytic cell in example 3 in that:
  • the columnar protrusions are arranged in three rows in the length direction of the upper surface of the cathode carbon block substrate, the diameter of the columnar protrusions is 17 cm, the height difference between the columnar protrusions and the upper surface of the cathode carbon block substrate is 11 cm, the distance between two adjacent columnar protrusions of the columnar protrusions of the same row is 19 cm, the distance between two adj acent columnar protrusions of the columnar protrusions of different rows on the same cathode carbon block is 5 cm, and the distance between two columnar protrusions adjacent to the aluminum outlet is 30 cm.
  • the columnar protrusions are made of artificial graphite electrode and graphite block by processing.
  • the working condition when aluminum electrolysis is performed in the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is that: all the columnar protrusions of the cathode carbon block should be immersed in the aluminum liquid, the upper aluminum liquid is electrolyte melt, the height of the aluminum liquid level is higher than the upper surface of the protrusions and is 1-10 cm after aluminum production, and the working voltage of the electrolytic cell is 3.5-3.9 V
  • the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is shown in Figure 9 , and the sectional view taken along line X-X in Figure 9 is shown in Figure 10 .
  • the structure of the electrolytic cell is consistent with that of the electrolytic cell in example 1, and is differentia from that of the electrolytic cell in example 1 in that:
  • the width of the cathode carbon block substrate is 66 cm
  • the length of the columnar protrusions is 30 cm
  • the width of the columnar protrusions is 23 cm
  • the height difference between the columnar protrusions and the upper surface of the cathode carbon block substrate is 11 cm.
  • the distance between two adjacent columnar protrusions of the columnar protrusions of the same row is 35 cm
  • the distance between two adjacent columnar protrusions of the columnar protrusions of different rows on the same cathode carbon block is 10 cm
  • the distance between two columnar protrusions adjacent to the aluminum outlet is 70 cm.
  • the working condition when aluminum electrolysis is performed in the aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface is that: all the columnar protrusions of the cathode carbon block should be immersed in the aluminum liquid, the upper aluminum liquid is electrolyte melt, the height of the aluminum liquid level is higher than the upper surface of the protrusions and is 1-10 cm after aluminum production, and the working voltage of the electrolytic cell is 3.5-3.9 V

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
EP10854308.3A 2010-07-08 2010-07-30 Cellule d'électrolyse d'aluminium comprenant un bloc cathodique en carbone doté de parties saillantes colonnaires enchâssées sur sa surface supérieure Withdrawn EP2592176A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010102209808A CN101864580B (zh) 2010-07-08 2010-07-08 一种阴极碳块上表面镶嵌柱形凸起的铝电解槽
PCT/CN2010/075575 WO2012003649A1 (fr) 2010-07-08 2010-07-30 Cellule d'électrolyse d'aluminium comprenant un bloc cathodique en carbone doté de parties saillantes colonnaires enchâssées sur sa surface supérieure

Publications (1)

Publication Number Publication Date
EP2592176A1 true EP2592176A1 (fr) 2013-05-15

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EP10854308.3A Withdrawn EP2592176A1 (fr) 2010-07-08 2010-07-30 Cellule d'électrolyse d'aluminium comprenant un bloc cathodique en carbone doté de parties saillantes colonnaires enchâssées sur sa surface supérieure

Country Status (5)

Country Link
US (1) US20130112549A1 (fr)
EP (1) EP2592176A1 (fr)
CN (1) CN101864580B (fr)
CA (1) CA2804944A1 (fr)
WO (1) WO2012003649A1 (fr)

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CN102719850A (zh) * 2012-06-29 2012-10-10 东北大学 一种阴极炭块上表面圆柱形凸起与基体进行镶嵌的方法
CN102766884A (zh) * 2012-07-10 2012-11-07 沈阳北冶冶金科技有限公司 上表面带有圆筒形凹槽的铝电解槽阴极炭块及其制作方法
EP2909875B1 (fr) 2012-10-16 2020-06-17 Ambri Inc. Dispositifs et boîtiers pour le stockage d'énergie électrochimique
US9735450B2 (en) 2012-10-18 2017-08-15 Ambri Inc. Electrochemical energy storage devices
US10541451B2 (en) 2012-10-18 2020-01-21 Ambri Inc. Electrochemical energy storage devices
WO2015058010A1 (fr) 2013-10-16 2015-04-23 Ambri Inc. Joints pour des dispositifs de matériau réactif à haute température
US11387497B2 (en) 2012-10-18 2022-07-12 Ambri Inc. Electrochemical energy storage devices
US11211641B2 (en) 2012-10-18 2021-12-28 Ambri Inc. Electrochemical energy storage devices
US11721841B2 (en) 2012-10-18 2023-08-08 Ambri Inc. Electrochemical energy storage devices
US9312522B2 (en) 2012-10-18 2016-04-12 Ambri Inc. Electrochemical energy storage devices
US9520618B2 (en) 2013-02-12 2016-12-13 Ambri Inc. Electrochemical energy storage devices
CA2891221C (fr) * 2012-11-13 2017-05-02 Obshchestvo S Ogranichennoy Otvetstvennost'yu "Obedinennaya Kompaniya Rusal Inzhenerno-Tekhnologicheskiy Tsentr" Revetement d'un electrolyseur en aluminium dote d'anodes inertes
US10270139B1 (en) 2013-03-14 2019-04-23 Ambri Inc. Systems and methods for recycling electrochemical energy storage devices
CN103243351B (zh) * 2013-05-20 2016-08-03 中南大学 一种分区电解预焙铝电解槽
US9502737B2 (en) 2013-05-23 2016-11-22 Ambri Inc. Voltage-enhanced energy storage devices
US10181800B1 (en) 2015-03-02 2019-01-15 Ambri Inc. Power conversion systems for energy storage devices
WO2016141354A2 (fr) 2015-03-05 2016-09-09 Ambri Inc. Céramiques et joints pour dispositifs de matériau réactif à haute température
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Publication number Publication date
CN101864580A (zh) 2010-10-20
CN101864580B (zh) 2013-01-02
CA2804944A1 (fr) 2012-01-12
US20130112549A1 (en) 2013-05-09
WO2012003649A1 (fr) 2012-01-12

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