WO2012146065A1 - 在线测量铝电解槽阳极电流分布的装置 - Google Patents

在线测量铝电解槽阳极电流分布的装置 Download PDF

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Publication number
WO2012146065A1
WO2012146065A1 PCT/CN2012/000568 CN2012000568W WO2012146065A1 WO 2012146065 A1 WO2012146065 A1 WO 2012146065A1 CN 2012000568 W CN2012000568 W CN 2012000568W WO 2012146065 A1 WO2012146065 A1 WO 2012146065A1
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WIPO (PCT)
Prior art keywords
anode current
current distribution
electrolytic cell
measuring
aluminum electrolytic
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Application number
PCT/CN2012/000568
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English (en)
French (fr)
Inventor
杨晓东
周东方
刘铭
张钦菘
赵鑫
周红旗
殷小宝
符勇
马恩杰
倪网东
李国正
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中铝国际工程股份有限公司
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Application filed by 中铝国际工程股份有限公司 filed Critical 中铝国际工程股份有限公司
Priority to NO20131583A priority Critical patent/NO347282B1/no
Priority to CA2834446A priority patent/CA2834446C/en
Publication of WO2012146065A1 publication Critical patent/WO2012146065A1/zh

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    • 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

Definitions

  • the present invention relates to a current measuring device, and more particularly to an apparatus for measuring the anode current distribution of an aluminum electrolytic cell on-line. Background technique
  • the more common method is to periodically detect the equidistant sag pressure drop on the anode guide rod by the anode current distribution fork to understand the distribution of the anode current in the electrolytic cell, and then analyze and judge whether the anodes of the electrolytic cell work normally. , and adjust the anode that is not working properly.
  • the data obtained by this method is intermittent and cannot meet the requirements for real-time monitoring of the cell. At the same time, this method is time consuming, labor intensive, and unsafe to operate. Summary of the invention
  • the present invention provides a device for measuring the anode current distribution of an aluminum electrolytic cell on-line, with the aim of real-time monitoring and precise control of the anode current of the electrolytic cell.
  • the present invention is realized in such a manner that the device for measuring the anode current distribution of the aluminum electrolytic cell on-line is composed of the following structure: an insulating connecting body, the measuring contact is provided inside the insulating connecting body, and the outer side of the insulating connecting body is fixed tightly On the solid device.
  • the measuring contact is a metal conductor, and one end of the measuring contact is threaded, and the measuring contact is fixed to the insulating connecting body through the threaded end, and the other end of the measuring contact is round or spherical.
  • the measuring contacts are sequentially arranged on the insulating connecting body in the direction of the current of the anode guiding rod.
  • the insulated connecting body is fixed to the inside of the fastening device by bolts.
  • the fastening device is composed of the following structure: a concave-shaped steel belt, a locking bracket is provided at an end of one side of the opening of the concave-shaped steel belt, and the outer end of the locking bracket and the end of the handle are fixed by the pin shaft
  • the middle of the handle is fixed to one end of the connecting rod, the other end of the connecting rod is fixed to one end of the locking ring, and the other end of the locking ring is sleeved on the other side of the opening of the concave shaped steel strip.
  • the end of the other side of the concave-shaped steel strip opening is bent outward.
  • the handle is H-shaped.
  • the adjusting nut is provided on the connecting rod passing through the handle.
  • the locking ring and the connecting rod are connected by a pin type.
  • the invention has the advantages of simple structure, safe operation, long service life, easy installation and disassembly, reduced labor cost, reduced tank effect coefficient, and energy saving and consumption reduction of the aluminum plant. Since the adjusting nut capable of fixing and adjusting the elastic is installed at the opening of the concave-shaped steel strip, in the fully opened state, one side of the fastening device is completely opened, ensuring that the device can be smoothly and quickly mounted on the guide rod; Underneath, the gap can be adjusted to ensure that the measuring contact is in close contact with the anode guide.
  • Figure 1 is a front elevational view of the apparatus for in-line measurement of the anode current distribution of an aluminum electrolytic cell of the present invention.
  • Figure 2 is a side elevational view of the apparatus of Figure 1.
  • Fig. 3 is a plan view showing the apparatus for measuring the anode current distribution of the aluminum electrolytic cell of the present invention in a closed state in a closed state.
  • Fig. 4 is a plan view showing the apparatus for measuring the anode current distribution of the aluminum electrolytic cell of the present invention in an open state.
  • the device for measuring the anode current distribution of the aluminum electrolytic cell in the present invention can be directly fixed on the anode guide rod of the aluminum electrolytic cell, and the electrical signal can be transmitted to the slot control machine by measuring the wire.
  • the apparatus for measuring the anode current distribution of an aluminum electrolytic cell on-line is composed of the following structure: an insulating connecting body 2, a measuring contact 1 is provided on the inner side of the insulating connecting body 2, and the outer side of the insulating connecting body 2 is fixed in the fastening On the device; the measuring contact 1 is a metal conductor, one end of the measuring contact 1 is threaded, the measuring contact 1 is fixed to the insulating connecting body 2 through a threaded end, and the other end of the measuring contact 1 is conical Or spherical, the measuring contact 1 is fixedly arranged on the insulating connecting body 2 in the direction of the current of the anode guiding rod 10; the insulating connecting body 2 is passed through the bolt 3 is fixed inside the fastening device.
  • one end of the measuring contact 1 can also be fixed to the insulating connecting body 2 by means of rivets (not shown) provided thereon.
  • the fastening device is composed of the following structure: a concave-shaped steel strip 5, at the end of one side of the opening of the concave-shaped steel strip 5, a latch bracket 9 is provided, and the outer end of the latch bracket 9 and the end of the handle 4 pass through the pin
  • the shaft is fixed, the middle of the handle 4 is fixed to one end of the connecting rod 7, the other end of the connecting rod 7 is fixed to one end of the locking ring 6, and the other end of the locking ring 6 is sleeved on the other side of the opening of the concave steel strip 5,
  • the end of the other side of the opening of the concave-shaped steel strip 5 is bent outward, and the handle 4 is H-shaped, and an adjusting nut 8 is provided on the connecting rod 7 passing through the handle 4.
  • adjustment means such as adjustment bolts, adjustment cards, other than the adjustment nut 8, for adjusting the fastening means, may also be provided on the connecting rod 7 passing through the handle 4.
  • Pins can be adjusted in conjunction with pin holes spaced on the connecting rod), adjustable bearings, etc.
  • the adjusting device adopted by the invention is small and flexible, convenient to install and favorable for improving sampling accuracy.
  • the locking ring 6 is connected to the connecting rod 7 by a pin-type manner, and the connecting rod 7 can be rotated inside the locking ring 6 to ensure that the fastening device can adjust the anode of the on-line measuring aluminum electrolytic cell of the invention by adjusting the nut 8 in the locked state.
  • the measuring contact 1 is fixed to the insulating connecting body 2 through the threaded end, and the other end of the measuring contact 1 can also be Other shapes such as a truncated cone shape, an elongated shape, and the like, so that the other end of the measuring contact 1 can be brought into face contact or line contact with the anode lead rod in the locked state.

Description

在线测量铝电解槽阳极电流分布的装置 技术领域
本发明涉及一种电流测量装置, 尤其涉及一种在线测量铝电解槽 阳极电流分布的装置。 背景技术
多年以来, 现代大型预焙阳极铝电解槽工艺参数的在线监测问题 一直是困扰世界铝工业发展的一大难题, 尤其是阳极电流分布的测量 更是如此。
目前, 较为通用的方法是由工人用阳极电流分布叉定期检测阳极 导杆上的等距亳伏压降, 以了解电解槽内阳极电流的分布情况, 进而 分析和判断电解槽各个阳极工作是否正常, 并对工作不正常的阳极进 行调整。 这种方法获得的数据是间断的, 无法满足对电解槽的实时监 控的要求。 同时, 这种方法耗时、 耗力、 在操作上也不安全。 发明内容
为了解决上述技术问题本发明提供一种在线测量铝电解槽阳极电 流分布的装置, 目的是对电解槽阳极电流实时监测和精确地控制。
为达上述目的本发明是这样实现的, 在线测量铝电解槽阳极电流 分布的装置, 由下述结构构成: 绝缘连接体, 绝缘连接体的内侧设有 测量触头, 绝缘连接体外侧固定在紧固装置上。
所述的测量触头为金属导体, 测量触头的一端为带有螺紋, 测量 触头通过带有螺紋的一端与绝缘连接体固定, 测量触头的另一端为圆 锥形或球形。
所述的测量触头沿阳极导杆电流方向依次固定排布在绝缘连接体 上。
所述的绝缘连接体通过螺栓固定在紧固装置内侧。
所述的紧固装置由下述结构构成: 凹字形钢带、 在凹字形钢带开 口的一条边的端部设有锁扣支架, 锁扣支架外侧端部与把手的端部通 过销轴固定, 把手的中部与连接杆的一端固定, 连接杆的另一端与锁 扣环的一端固定, 锁扣环的另一端套在凹字形钢带开口的另一边上。 所述的凹字形钢带开口的另一边的端部向外弯折。
所述的把手为 H形。
所述的在穿过把手的连接杆上设有调节螺母。
所述的锁扣环与连接杆通过销型方式连接。
本发明的优点效果: 本发明结构简单、 操作安全、 使用寿命长、 易于安装和拆卸; 减少人工成本, 降低槽效应系数, 实现铝厂节能降 耗。 由于在凹字形钢带开口处安装能够固定和调节松紧的调节螺母, 因此在完全打开状态下, 紧固装置有一侧完全敞开, 保证装置能够顺 利、 快速地安装到导杆上; 在锁紧状态下, 能够调整间隙, 保证测量 触头与阳极导杆紧密接触。 附图说明
图 1是本发明的在线测量铝电解槽阳极电流分布的装置的主视图。 图 2是图 1所示装置的侧视图。
图 3 是闭合状态下的本发明的在线测量铝电解槽阳极电流分布的 装置的俯视图。
图 4是打开状态下的本发明的在线测量铝电解槽阳极电流分布的 装置的俯视图。
图中: 1、 测量触头; 2、 绝缘连接体; 3、 螺栓; 4、 把手; 5、 凹 字形钢带; 6、 锁扣环; 7、 连接杆; 8、 调节螺母; 9、 锁扣支架; 10、 阳极导杆。 具体实施方式
下面结合附图对本发明作进一步说明。 在实际应用中, 本发明的 在线测量铝电解槽阳极电流分布的装置可以直接固定在铝电解槽阳极 导杆之上, 通过测量导线, 可以将电信号传输给槽控机。
如图所示本发明在线测量铝电解槽阳极电流分布的装置, 由下述 结构构成: 绝缘连接体 2, 绝缘连接体 2的内侧设有测量触头 1 , 绝缘 连接体 2外侧固定在紧固装置上; 测量触头 1为金属导体, 测量触头 1 的一端为带有螺紋, 测量触头 1 通过带有螺纹的一端与绝缘连接体 2 固定, 测量触头 1 的另一端为圓锥形或球形, 测量触头 1 沿阳极导杆 10电流方向依次固定排布在绝缘连接体 2上; 绝缘连接体 2通过螺栓 3固定在紧固装置内侧。 除了螺纹连接方式外, 测量触头 1的一端还可 以通过设置在其上面的铆钉 (图中未示出) 固定到绝缘连接体 2上。
紧固装置由下述结构构成: 凹字形钢带 5、 在凹字形钢带 5开口的 一条边的端部设有锁扣支架 9,锁扣支架 9外侧端部与把手 4的端部通 过销轴固定, 把手 4的中部与连接杆 7的一端固定, 连接杆 7的另一 端与锁扣环 6的一端固定, 锁扣环 6的另一端套在凹字形钢带 5开口 的另一边上, 凹字形钢带 5开口的另一边的端部向外弯折,把手 4为 H 形, 在穿过把手 4的连接杆 7上设有调节螺母 8。 然而, 本领域的技术 人员能够意识到: 也可以在穿过把手 4的连接杆 7上设置调节螺母 8 以外的用以对紧固装置进行调节的其它类型的调节装置, 例如调节螺 栓、 调节卡销 (可与在连接杆上间隔设置的销孔相配合实施调节) 、 可调节轴承等。 本发明所采用的调节装置小巧灵活, 安装方便且有利 于提高采样准确度。
锁扣环 6与连接杆 7通过销型方式连接, 连接杆 7可在锁扣环 6 内部转动, 保证紧固装置在锁紧状态下能够通过调节螺母 8 调节本发 明的在线测量铝电解槽阳极电流分布的装置的松紧。
另外, 为了增强在锁紧状态下测量触头与阳极导杆之间的接触稳 定性, 测量触头 1 通过带有螺纹的一端与绝缘连接体 2 固定, 测量触 头 1 的另一端也可以呈截锥形、 细长形等其它形状, 从而使得在锁紧 状态下测量触头 1的另一端能够与阳极导杆形成小平面接触或线接触。
虽然前文中已对本发明在线测量铝电解槽阳极电流分布的装置的 特定实施例进行了描述, 然而应该理解: 本领域的技术人员可在不偏 离本发明的精神和范围的情况下对本发明作出任何变型和改进。

Claims

权 利 要 求
1 . 一种在线测量铝电解槽阳极电流分布的装置, 所述的装置由下 述结构构成: 绝缘连接体, 绝缘连接体的内侧设有测量触头, 绝缘连 接体外侧固定在紧固装置上, 其特征在于, 所述的测量触头为金属导 体, 测量触头的一端为带有螺紋, 测量触头通过带有螺紋的一端与绝 缘连接体固定。
2. 根据权利要求 1 所述的在线测量铝电解槽阳极电流分布的装 置, 其特征在于, 测量触头的另一端为截锥形或细长形。
3. 根据权利要求 1 所述的在线测量铝电解槽阳极电流分布的装 置, 其特征在于, 测量触头的另一端为圆锥形或球形。
4. 根据前述权利要求 2 - 3 中任一项所述的在线测量铝电解槽阳 极电流分布的装置, 其特征在于, 所述的测量触头沿阳极导扞电流方 向依次固定排布在绝缘连接体上。
5. 一种在线测量铝电解槽阳极电流分布的装置, 所述的装置由下 述结构构成: 绝缘连接体, 绝缘连接体的内侧设有测量触头, 绝缘连 接体外侧固定在紧固装置上, 其特征在于, 所述的测量触头为金属导 体, 测量触头的一端通过设置在其上面的铆钉固定到绝缘连接体上。
6. 根据权利要求 5 所述的在线测量铝电解槽阳极电流分布的装 置, 其特征在于, 测量触头的另一端为截锥形或细长形。
7. 根据权利要求 5 所述的在线测量铝电解槽阳极电流分布的装 置, 其特征在于, 测量触头的另一端为圆锥形或球形。
8. 根据前述权利要求 6 - 7 中任一项所述的在线测量铝电解槽阳 极电流分布的装置, 其特征在于, 所述的测量触头沿阳极导杆电流方 向依次固定排布在绝缘连接体上。
9. 根据权利要求 1或 5所述的在线测量铝电解槽阳极电流分布的 装置, 其特征在于, 所述的绝缘连接体通过螺栓固定在紧固装置内侧。
10. 一种在线测量铝电解槽阳极电流分布的装置,所述的装置由下 述结构构成: 绝缘连接体, 绝缘连接体的内侧设有测量触头, 绝缘连 接体外侧固定在紧固装置上, 其特征在于, 所述的紧固装置由下述结 构构成: 凹字形钢带、 在凹字形钢带开口的一条边的端部设有锁扣支 架, 锁扣支架外侧端部与把手的端部通过销轴固定, 把手的中部与连 接杆的一端固定, 连接杆的另一端与锁扣环的一端固定, 锁扣环的另 一端套在凹字形钢带开口的另一边上。
1 1. 根据权利要求 1 1所述的在线测量铝电解槽阳极电流分布的装 置, 其特征在于, 所述的凹字形钢带开口的另一边的端部向外弯折。
12. 根据权利要求 1 1所述的在线测量铝电解槽阳极电流分布的装 置, 其特征在于, 所述的把手为 H形。
13. 根据前述权利要求 10 - 12中任一项所述的在线测量铝电解槽 阳极电流分布的装置, 其特征在于, 在穿过把手的连接杆上设有调节 装置。
14. 根据权利要求 13所述的在线测量铝电解槽阳极电流分布的装 置, 其特征在于, 所述调节装置为调节螺栓或者调节卡销或者可调节 轴承。
15. 根据权利要求 10所述的在线测量铝电解槽阳极电流分布的装 置, 其特征在于, 所述的锁扣环与连接杆通过销型方式连接。
PCT/CN2012/000568 2011-04-29 2012-04-27 在线测量铝电解槽阳极电流分布的装置 WO2012146065A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO20131583A NO347282B1 (no) 2011-04-29 2012-04-27 Enhet for on-line måling av distribusjon av anodestrømmen til en aluminiumelektrolysecelle
CA2834446A CA2834446C (en) 2011-04-29 2012-04-27 Device for on-line measuring anode current distribution of aluminum electrolytic cell

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CN201110109762.1 2011-04-29
CN201110109762.1A CN102758223B (zh) 2011-04-29 2011-04-29 在线测量铝电解槽阳极电流分布的装置

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CN109518231A (zh) * 2018-12-25 2019-03-26 云南铝业股份有限公司 一种铝电解槽电极电流分布情况测量装置及其测量方法
CN110501561A (zh) * 2019-09-27 2019-11-26 贵阳铝镁设计研究院有限公司 铝电解槽阳极电流分布在线检测系统及其方法

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CN104278295B (zh) * 2013-07-04 2018-08-28 贵阳铝镁设计研究院有限公司 一种铝电解槽阳极电流分布测量系统及其测量方法
CN105624734A (zh) * 2016-03-23 2016-06-01 北京科技大学 具有自校准功能的铝电解槽阳极分布电流精确测量仪

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